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high alumina low cement castable

Causes and solutions to cracking of castables after baking

In industrial production, castables are widely used in various furnaces and equipment as a key high-temperature, wear-resistant, and corrosion-resistant material. However, the cracking problem often occurs after the baking session, which not only affects the performance of the castables, but also may lead to equipment damage and safety hazards. Therefore, we need to understand the causes of cracking after baking and explore reasonable solutions. Causes of cracking after baking of refractory castables Unreasonable structural design: Insufficient design or improper form of expansion joints cause the castables to squeeze each other when subjected to thermal expansion, resulting in cracks. Poor quality of castables: poor matching and combination of aggregate and matrix, or improper preservation of materials leading to moisture deterioration, making…

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high alumina mortars

Enhancing the Medium Temperature Strength of Refractory Castables

How to improve the medium temperature strength of refractory castables Refractory castables play a crucial role in maintaining the stability and efficiency of industrial furnaces and kilns operating in high-temperature environments. Among various performance indicators, the medium-temperature strength of refractory castables is particularly critical for their long-term usage under high-temperature conditions. This article aims to explore methods for improving the medium temperature strength of refractory castables, analyze the factors influencing it, and propose corresponding enhancement measures. Analysis of the Mechanism behind the Decline in Medium Temperature Strength The decline in strength of refractory castables at medium temperature is a complex process influenced by factors such as the material’s chemical composition, microstructure, and porosity. The primary reason for the strength reduction…

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high alumina insulatingbricks

Ways to ensure the accuracy of refractory brick acceptance results

How to Ensure the Accuracy of Sampling and Results When Testing Shaped Refractory Bricks? Refractory brick acceptance results are directly related to project quality.Product acceptance requires attention to three aspects: representativeness of sampling, correctness of selection, and accuracy of test results. Representativeness of sampling The test results of samples are usually used to decide whether to accept a batch of materials. In order to ensure the representativeness of the samples taken, before sampling, relevant parties should reach an agreement on the sampling inspection plan based on the type of material, contract quantity, delivery method, packaging, storage and transportation method, etc. A detailed and effective sampling inspection plan should include: (1) Batch or batch method;(2) Sampling methods and procedures;(3) Number of…

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Acceptance inspection after cement kiln construction

6 Acceptance Steps after Cement Kiln Construction Acceptance is the last step in industrial kiln lining construction, and it is also the most important step. During the construction quality acceptance process of refractory materials for cement kilns, the following 6 steps need to be followed: Engineering inspection Project quality inspections should be carried out at any time during the construction process, and process control should be done well. Unqualified phenomena must be corrected at any time. If serious construction problems arise, then rework will be required. Use a plug ruler to check the thickness of brick joints Use a feeler gauge to check the thickness of the brick joints. The top of the feeler gauge must not be sharpened. The feeler gauge is 15mm wide, 100mm long, and has four thicknesses: 1mm, 1.5mm, 2mm, and 3mm. Refractory brick linings are divided into four categories according to the size of the brick joints and the fineness of the operation. The categories and brick joint sizes are: Class I ≤ 0.5mm, Class II ≤ 1mm, Class III ≤ 2mm, and Class IV ≤ 3mm. The refractory lining of the rotary kiln system is built with refractory mortar. The mortar joints should be within 2mm. Those with a feeler gauge inserted into the joints to a depth of ≤20mm are qualified. Every 5m of masonry surface, 10 places are randomly inspected. Check the flatness Use a 2-meter ruler to check the flatness, and measure against the refractory bricks every 3 to 5 meters. The largest gap shall prevail and should not exceed 5mm. Concealed works should be accepted For all covered concealed projects, the insulation layer and anchors, water loss prevention measures, pre-embedded measures, and other concealed projects should be accepted before entering the next process. Acceptance inspection After some projects are completed,acceptance should be carried out. The inspection items are as follows: the overall dimensions, lining thickness, and center line of the masonry; material usage; expansion joints, brick joints, levelness, verticality, and surface smoothness; process facilities and holes; appearance inspection. After the inspection of the projects, the project acceptance form should be filled out, and it will take effect after the signature of the acceptance personnel. Data Retention Relevant materials must be collected, recorded, organized, and finally archived and kept as required. Refractory solutions for industry Refractories for steelmaking Refractories for Ironmaking Refractories for furnace lining Refractories for glass kilns Refractories for Electric Furnaces

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common ways of damaging ladle nozzles

Three Common Ways of Damage to the Sliding Nozzle for Ladles

Common ways of damaging ladle nozzles The sliding nozzle consists of an upper & lower nozzle and an upper & lower sliding plate. It is a key functional component that controls the flow of molten steel from the ladle to the tundish or from the tundish to the crystallizer. Among them, the sliding plate is the key carbon composite functional component in the sliding nozzle system, which has the function of controlling and injecting the steel flow. At present, the ordinary ladles mainly use aluminum carbon sliding plates, while the large refined ladles mainly use aluminum zirconium carbon sliding plates. The service condition of sliding plates is extremely harsh, so most of them are damaged after being used several times….

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ceramic fiber paper for sale

How to choose and use Kiln Furniture for Firing Ceramics

Methods of selecting kilns for firing ceramics Ceramics is the art of fire, the firing (sintering) of ceramic is carried out in high-temperature kilns. Common kilns in the modern ceramic industry include intermittent kilns and continuous kilns. The firing of ceramics cannot be achieved without various kiln furniture.How to choose appropriate ceramic firing furniture and materials based on different kilns is an important step in achieving ceramic firing. The main furniture for firing ceramics include carts, models, and various kiln furniture used for firing porcelain billets. Kiln furniture refers to the general term for tools used in the production of ceramics. Ceramics with diverse colors and shapes cannot be separated from the use of kiln furniture. When porcelain blanks are…

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alumina bubble brick

Difference between alumina bubble brick and high alumina brick

Alumina Bubble Brick VS High Alumina Brick Alumina bubble brick and high alumina brick are all refractory bricks; both of them contain aluminum dioxide, and the alumina content is relatively high. However, alumina bubble bricks and high-alumina bricks are not the same products. Aluminum bubble brick belongs to the type of thermal insulation refractory brick. It is lightweight refractory brick mainly made from aluminum oxide hollow balls as the main raw material, add industrial aluminum powder and binder are added in proportion, mixed, stirred, pressed, and dried, then sintered at high temperature shuttle kiln with 1800 °C. It belongs to the category of advanced thermal insulation refractory energy-saving material products. High-alumina brick are silicate aluminum refractory materials with a content…

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ceramic fiber paper wholesale

How to avoid blockages in roller ceramic kiln roads

The products fired in roller kilns have the advantages of small color difference and uniform size. Therefore, it has become the main equipment for quickly firing wall and floor tiles. Improper control during use can easily cause product blockage, affect production, and reduce service life. But how to avoid blockage of the roller kiln during the production process? To solve this issue, we first need to know reasons for the blockage of the roller kiln and how to avoid these problems. The main reasons for the blockage of the roller kiln as follows Porcelain roller contamination Porcelain roller contamination is mainly manifested by oil stains on the roller, forming uneven bumps on the roller. Due to improper control of glaze…

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$principles of refractory material selection$

Five Major Characteristics of Magnesia-calcium Refractory Materials

MgO-CaO material is widely used in outside-furnace refining and cement rotary kiln firing zones because of its excellent high-temperature performance and unique function of purifying molten steel. Currently commonly used magnesium-calcium products include unburned magnesia-calcium products, burned magnesia-calcium products, ramming materials and coatings, etc. Moreover, magnesium-calcium refractory materials do not have environmental pollution problems. Five Major Characteristics of Magnesia-calcium Refractory Materials High temperature resistance MgO and CaO are both high melting point oxides, and their lowest eutectic temperature reaches 2300°C, so this type of material has high refractoriness and load softening temperature. Good slag resistance, especially for high alkalinity slag For low alkalinity slag, CaO in the magnesia-calcium sand dissolves first and reacts with SiO2 in the refining slag to…

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silica ramming mass

Construction, Maintenance and Baking of Refractory Ramming Materials for Cement Kilns

Before construction, it is necessary to carefully check whether molds and other construction equipment meet the requirements for use, and whether the rust removal of the equipment, the welding and installation of tortoise shell nets and anchor nails are qualified. Once everything is ready, you can refer to the following construction methods for construction. Stir ①A forced mixer should be used for mixing. The mixer needs to be cleaned in advance and rinsed with water, and lime, silt, Portland cement and other impurities must not be mixed in. ② According to the size of the mixer and the construction conditions, the mixing volume should not exceed 100kg each time. ③Pour each component of the refractory ramming material into the mixer,…

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$refractories for blast furnace steelmaking$

Damage Mechanism of Steel Ladle Refractories

Damage mechanism of the working layer of ladle refractory lining As a key equipment for carrying and transferring high temperature liquid steel, the integrity of the refractory lining of the ladle is essential to ensure the continuity and safety of steel production. However, the working layer of the ladle refractory lining is often exposed to a variety of damage risks during the steelmaking process. In this paper, the mechanism of these damages will be discussed in depth, in order to provide a theoretical basis for the design and optimization of refractory materials. Thermal stress damage Ladle refractory lining in the rapid temperature changes in the huge thermal stress. When the ladle is injected with high temperature steel, the surface temperature…

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ceramic fiber paper wholesale

How to Choose Refractory Materials for Ceramic Kilns

Ceramic kilns are essential tools for firing and processing ceramics. Refractory materials play a crucial role in maintaining the desired temperature, preventing heat loss, and ensuring the longevity of kilns. So it is very important to choose refractory materials for ceramic kilns. Firstly, we need to know the types of kilns used for firing porcelain are as follows According to its appearance design and actual operation, there are intermittent type and continuous type. The interval kiln is like an inverted flame kiln, and the continuous kiln is like a tunnel kiln. According to the heat source, there are flame kilns using fuel (burning coal, liquefied gas or heavy oil, etc.) and electric heating kilns. According to whether the flame touches…

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Improve the life of refractories for aluminum smelting furnace

Usage status and shortcomings of refractory materials used in aluminum melting furnace The molten pool of the aluminum melting furnace that is in direct contact with the molten aluminum is the most severely corroded by the molten aluminum. Traditional aluminum melting furnace pool generally use high-aluminum or clay refractory materials, which have lower quality and shorter service life. Refractory clay bricks are aluminum silicate refractory products with Al2O3 content 30% to 48% . It has good thermal shock resistance. The fire clay brick is weakly alkaline and has strong resistance to acidic slag erosion. However, Fireclay bricks are mainly composed of aluminosilicates, and the siliceous components in them are easily destroyed by reaction with liquid aluminum, so they were replaced…

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$shaped refractory brick production$

How to ensure the irregular-shaped refractory bricks match customer requirements

How to ensure that shaped refractory bricks meet customer requirements Shaped refractory bricks generally refer to special positions in industrial kilns with irregular shapes. In situations where conventional refractory bricks cannot be constructed, customized refractory bricks of different shapes are needed according to the specific usage scenario. Irregular-shaped bricks are also a type of refractory bricks, but their shape is irregular compared to ordinary refractory bricks. Irregular bricks have important applications in special parts of industrial kilns. During international business, when we receive an order from a customer for irregular-shaped bricks, how can we ensure that the produced irregular-shaped bricks meet the customer’s customization requirements from production arrangement to shipment? As a factory specializing in the production of refractory materials…

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original material preliminary oxidation further oxidation

Causes of Damage to Refractory Materials Used for Molten Iron Pretreatment

Analysis of the causes of refractory damage in the stage of molten iron pretreatment The refractory materials used in the molten iron pretreatment system are subject to the erosion of high-temperature molten iron, erosion of slag, rapid working temperature change, chemical corrosion of pretreatment agents, erosion and penetration of molten iron slag into refractory materials during the actual working process. Therefore, the main factors leading to the damage of this material include mechanical erosion, thermal shock damage, chemical corrosion, slag erosion /slag penetration, and oxidation. Mechanical Scour When tapping and pouring molten iron, the molten iron will wash away the bottom and side walls of the molten iron ditch (torpedo tank or molten iron tank) at high speed and force….

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high alumina brick for sale

Difference between Fireclay Brick and High Alumina Brick

Fireclay Brick Vs High Alumina Brick Fireclay bricks and high alumina bricks are both aluminum silicate refractory materials. They have some similarities and differences. Both of them are high-temperature resistant shaped refractory bricks, but their alumina content is different. Fireclay bricks refer to Al2O3 clay products containing 30% to 40% aluminum silicate materials. The materials are generally clay. Clay bricks are made of 50% soft clay and 50% hard clay clinker. They are batched according to certain particle size requirements. After molding and drying It is fired at a high temperature of 1300-1400℃. High alumina brick refers to a type of inorganic non-metallic material with an alumina (Al2O3) content exceeding 48% and refractory temperature exceeding 1580°C. High alumina bricks are…

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magnesia bricks

light burnt magnesia VS dead burnt magnesia

Difference between light burnt magnesia and dead burnt magnesia Magnesite is a natural mineral resource that often appears in alkaline refractory materials. After burning natural magnesite, the content of magnesium can be further increased. Magnesite is a magnesium carbonate mineral and it is the main source of industrial magnesium refining. According to the degree of calcining and producing technology, it can be divided into light-burnt magnesia and dead-burnt magnesia. The production technology is different Light-burnt magnesia is produced by calcining magnesium carbonate or magnesium hydroxide at relatively lower temperatures, usually ranging from 750 to 1100 °C. This moderate heating process preserves a significant portion of the original crystal structure, resulting in a product with lower density and increased reactivity. Since the burning loss of magnesite is generally about 50%, the magnesium oxide content in the ore can be almost doubled through light burning. Therefore, light burning is the most effective means of enriching MgO. Light-burnt magnesia has high activity; it is an ideal raw material for producing high-density magnesia. Dead-burned magnesia belongs to burned magnesia, and its main component is magnesium oxide. It is the main raw material for the production of ordinary magnesia-fired bricks and amorphous refractory materials. Dead-burned magnesia is a product of hydrogen extracted from magnesite, brucite, or seawater, which escapes completely under high pressure when it is calcined in a high-temperature shaft kiln at 1800°C. Magnesium oxide forms dense blocks of periclase with a high MgO content, usually between 90%-93%, it is the raw material for the production of ordinary magnesia bricks and aMonolithic refractory materials. Properties and Characteristics are different Light burnt magnesia tends to retain more of its original crystalline structure, imparting a higher surface area and porosity. This characteristic leads the product more reactive and suitable for applications that demand quick hydration or dissolution. Due to its porous nature, it has increased surface activity, making it as an excellent choice for agricultural, environmental, and some industrial applications. Dead burnt magnesia loses much of its initial crystalline structure due to the higher calcination temperatures, resulting in a denser and less porous material. This altered structure leads to decreased reactivity and increased chemical stability, making it an ideal choice for applications that require high heat resistance and structural integrity. The application is different Light burnt magnesia is mainly used as an intermediate product in the two-step calcination method. For example, it can be ball-pressed and calcined to produce sintered magnesia (DBM) with different grades, synthesize composite materials such as magnesia-calcium sand and magnesia-aluminum spinel sand, or produces professional products such as fused magnesite (FM) and electrical grade magnesium oxide. In addition to being an intermediate product of secondary calcining of magnesia refractory raw materials, light-burned magnesia can also be used to manufacture magnesium chemical products, magnesia cement, magnesite building materials products, heat insulation materials, feed additives, etc. In addition, light-burned magnesium after chemical treatment can be made into a variety of magnesium salts, which are raw materials for medicine, rubber, artificial fibers, papermaking and other fields. In the building materials industry, light-burned magnesia can be made into tire boards, particleboards, insulation columns, railings, artificial marble, asbestos tiles, wall panels, etc. Dead burnt magnesia’s primary application lies in industries that demand high-temperature resistance and stability. It is mainly used in metallurgy industry. It can be also used to make magnesia bricks, chrome magnesia bricks, magnesite, metallurgical powder, fused magnesium oxide, etc. Meantime used for the lining of medium and high frequency induction furnaces for smelting special alloy steel, non-ferrous metals and precious metals. In addition, it can also be used as high temperature electrical insulation material.

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nitride bonded silicon carbide bricks

Silicon Nitride Bonded Silicon Carbide Bricks VS Silicon Carbide Bricks

Difference between silicon nitride bonded silicon carbide brick and silicon carbide brick The main difference between silicon nitride bonded silicon carbide bricks and silicon carbide bricks lies in products characteristic, preparation process and application performance. Silicon nitride bonded silicon carbide brick Silicon nitride bonded silicon carbide brick is made from SiC and Si as raw materials through a nitriding and sintering process. The characteristic of this brick is using Si3N4 as a binder. During the production process, it is necessary to control the addition of temporary binding agents, which helps to fuse the raw materials more evenly. At the same time, during the drying and firing processes, the binding agents can also improve the reaction efficiency between silicon powder and…

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$choose refractory materials for refractory lining repair$

Refractory selection for refractory lining repair: from theory to practice

How to choose refractory materials for refractory lining repair? In the high-temperature industry, refractory linings are a critical component in maintaining the proper operation of equipment. However, for a variety of reasons, refractory linings can become damaged and need to be repaired. Selecting the right refractory for refractory lining repair is particularly important and Fireramo will discuss in detail how to select a refractory for refractory lining repair to help you better understand the process. The importance of refractory materials Refractory materials play an indispensable role in high-temperature industrial equipment. They need to withstand extremely high temperatures and a variety of harsh environments to provide protection for the stable operation of equipment. Once the refractory lining is damaged, it is…

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$7 mistakes to avoid in refractory lining construction$

7 Common Mistakes to Avoid in Refractory Lining Construction

7 Mistakes to Avoid in Refractory Lining Construction Proper installation of refractory linings is important to the industrial furnaces. Properly installed linings can ensure optimal insulation, chemical resistance, and mechanical integrity. However, there are some common mistakes that can compromise the effectiveness of refractory linings and lead to premature failure. Below are 7 common mistakes during the refractory construction. Insufficient surface preparation One of the most important steps in refractory lining installation is proper surface preparation. Failure to thoroughly clean and prepare the substrate can result in poor adhesion and poor lining performance.Before applying refractory material, make sure the substrate is free of dust, debris and residue. Use appropriate cleaning methods to obtain a clean, roughened surface for better adhesion….

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$refractory lining repair$

Refractory Lining Repair

How to Repair Cracks and Damage of Refractory Lining Refractory linings is an important part in industrial furnaces.However, these linings can crack and become damaged by thermal cycling, chemical reactions, or mechanical impacts. Repairing these problems is critical to maintaining the integrity and performance of refractory linings. The following are something you need to pay attention to when repairing the refractory lining. Damage Assessment The first step to repair refractory lining is to assess the condition of the damage. The lining should be thoroughly inspected for visible cracks, spalling, and erosion. This assessment will determine the appropriate repair method and materials needed for the repairing. Cleaning and Preparation It is essential to clean the surface of the refractory lining before repairing the damaged area. Remove loose debris, dust, and residue from cracks and damaged areas. Thoroughly clean the surface . Ensure that the cleaned surface is dry before proceeding to the next step. Selecting Repair Materials Select the appropriate repair material based on the type of damage and the operating conditions of the kiln. Common refractory lining repair materials include refractory clay, castables and refractory plastic materials. When you plan to repair a refractory lining, choose a refractory material that meets the current requirements of the kiln. For example, the refractoriness and mechanical properties should be in line with the current requirements of the kiln, as well as economic and sustainability considerations. For more information, read How to choose materials for refractory lining repair? Mixing and Application Prepare the repair materials according to the manufacturer’s instructions. Add the recommended ratio of water to the repair materials to achieve the required consistency. Thoroughly mix the repair materials then apply the repair material to the damaged area. The proper coverage and compaction can help to achieve a strong bond between the repair material and the existing refractory lining. Curing and drying After applying the repair materials, cure and dry the materials according to the manufacturer’s instructions. Special attention should be paid to the temperature and humidity conditions during curing to ensure optimum strength. Do not expose the repaired area to thermal stress or excessive moisture until the repair material has fully cured. Post-Repair Inspection After the repair material has cured, it should be inspected thoroughly to ensure that the repair area is structurally sound and properly bonded. Check whether there are still any signs of cracking, delamination, or delamination. If necessary, conduct non-destructive testing to verify the quality of the repair work. 2024 Most Complete Refractories for Furnace Linings

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al2o3 69% andalusie brick

Refractories to replace Magnesia Chrome Bricks

Refractory Materials to Replace Magnesia Chrome Bricks in Alkali Recovery Furnaces The linings of alkaline recovery furnaces in paper mills are often exposed to frequent temperature changes, black liquor injection, and high-speed erosion by various dusts and exhaust gases. Magnesium chrome bricks have excellent fire resistance, high temperature strength, and alkali resistance. It also has excellent slag erosion properties and has long been preferred as a lining material for alkali recovery furnaces. However, chromium-containing refractories can cause serious harm to the environment during use. Among them, Cr3+ gradually changes to Cr6+ under alkaline conditions. Cr6+ is carcinogenic. Considering the factors of environmental protection, the use of chromium-containing bricks should be avoided in order to reduce environmental pollution. Refractories that can replace chromium materials Spinel Refractories Usually, people are accustomed to calling magnesia-aluminum spinel (MgAl2O4) spinel for short. Spinel refractories made from magnesium oxide and alumina have high refractory properties, and magnesium-aluminum spinel bricks are common.Spinel also has strong corrosion resistance against reducing atmospheres, free SO2/SO3, and free K2O/Na2O. At the same time, magnesia-aluminum spinel also has excellent thermal shock stability and wear resistance, and magnesium-aluminum spinel also has excellent corrosion resistance. The high melting point, low coefficient of thermal expansion, and high hardness make magnesia aluminum spinel an indispensable refractory material. Magnesium-rich spinel with a mass fraction of Al2O3 of 47% has good resistance to slag permeability and slag erosion.Spinel refractory materials can be a good choice for replacing the magnesia chrome bricks. Andalusite-based refractories Andalusite has excellent high-temperature volume stability and melting resistance, and is easily transformed into mullite. Andalusite raw material can be used directly without calcination. Therefore, andalusite brick refractories can be widely used in applications requiring high thermal shock resistance and high temperature strength. Corundum Refractories Corundum refractories refer to refractories with an Al2O3 content of 90% or more and a main crystalline phase of α-Al2O3. Corundum refractories have the characteristics of high thermalstrength, good thermal shock and abrasion resistance, good chemical stability, and strong ability to resist the action of reducing agents. Common corundum refractories include corundum refractory bricks and corundum castables. Choosing chromium-free refractory materials to replace the original magnesia chrome bricks can better protect the production environment.Fireramo can produce different kinds of refractory products including the magnesia spinel bricks, andalusite bricks, corundum bricks and other kinds of refractory mateirals

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save energy in high temperature kilns

How to save energy in high temperature kilns

Save energy in high temperature kilns High temperature kilns are key thermal equipment in industrial processes such as ceramics, metallurgy, building materials and petrochemicals. They are also a major source of energy consumption and environmental pollution. Industrial kilns consume serious energy. The heat loss of industrial kilns generally accounts for about 10% of fuel consumption. Take the ceramic industry as an example, although China’s ceramic production ranks first in the world, there are still problems such as high production capacity, high resource consumption, low comprehensive utilization rate and low production efficiency. Therefore, it is very important to optimize the energy use of these kilns, not only for economic benefits, but also for environmental protection. But how to reduce kiln energy…

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ceramic fiber boards

Difference between ceramic fiber board and nano insulation board

Difference between ceramic fiber board and nano insulation board In the modern construction and industrial fields, the application of thermal insulation materials is more and more extensive, of which ceramic fiber board and nano thermal insulation board are two common thermal insulation materials. They are different in terms of material properties, use effects, application scenarios and so on. This article will be a detailed comparison and analysis of the difference between ceramic fiber board and nano insulation board. Ceramic fiber board is a new type of refractory thermal insulation material. It is made of ceramic fiber cotton by aggregation injection process, produced through continuous production and advanced technology production line. Ceramic fiber board has the characteristics of low thermal conductivity,…

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high alumina bricks

High Alumina Refractory vs Clay Refractory

Difference between high alumina refractory and clay refractory Both high alumina refractories and clay refractories belong to aluminum silicate refractories. These refractories have the advantages of light weight, good thermal stability and good adiabatic properties, but their initial deformation temperature is 1400℃. Therefore, aluminum silicate refractories in the metallurgical industry is generally only used as thermal insulation materials, not as a working layer. The difference between aluminum silicate refractories lies in the ratio of the main components AL2O3 and SIO2, which is higher for high-alumina materials than for clay refractories. The content of clay refractories ranges from 22% to 55%, whereas high-alumina materials contain more than 50% AL2O3. Clay refractories Chemical properties: weakly acidic Main raw material: refractory clay Chemical…

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$structure of blast furnace and hot blast furnace and use of refractories$

Basic Structure of Blast Furnace and Hot Blast Furnace

Structure of Blast Furnace and Hot Blast Furnace and Use of Refractories Blast furnace is the main equipment for ironmaking, which has the advantages of large output, high productivity and low cost. The blast furnace smelting process contains complex physicochemical changes. After the raw materials for ironmaking are added from the top of the blast furnace, pig iron is obtained through the processes of preheating, reduction and melting of iron oxides, flow and separation of iron and slag droplets, combustion of coke and generation of gas. Its smelting process is carried out continuously under high temperature.Best Refractories for Blast Furnace With the development of ironmaking technology in China, the blast furnace is becoming larger, more efficient and longer-lived, and the…

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$introduction of refractories for seven types of aluminum melting furnaces$

Introduction of refractories for seven types of aluminum melting furnaces

Characteristics of 7 types of aluminum melting furnace and refractory material selection Aluminum melting furnace is mainly reflector furnace, rotary furnace and induction furnace, etc., the operating temperature is generally 700-1000 ℃. This type of furnace lining damage is mainly caused by the penetration and scouring of aluminum liquid, the lining is generally used clay brick, high alumina refractory bricks and corundum mullite brick masonry, can also be used in high alumina refractory castables and refractory can be made of plastic, due to the use of good conditions, the furnace has a long service life. Refractories for Reflection Furnace The furnace is divided into fixed and tilting type two kinds, generally using gas or heavy oil as fuel. Aluminum melting…

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sintered magnesia aluminum spinel

Sintered Magnesia-Aluminum Spinel VS Fused MgAl Spinel

The main differences between sintered and fused Magnesium Aluminum Spinel Magnesia-aluminum spinel has good corrosion resistance, strong corrosion and peeling ability, good slag resistance, abrasion resistance, good thermal shock stability, high temperature resistance and other performance characteristics. Its main uses are: first, to replace magnesium chromium sand The manufacturing of magnesia-alumina sharp stone bricks is used in cement rotary kilns, which not only avoids chromium pollution, but also has excellent spalling resistance. Secondly, it is used to make ladle castables and ladle lining bricks, which greatly improves the corrosion resistance of the ladle lining. Due to the small thermal expansion coefficient of magnesia-aluminum spinel, the thermal shock stability of refractory products using it as a binding phase is relatively high….

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high alumina insulatingbricks

Factor Determining the Performance of Insulation Bricks

Those factors affect the performance of insulation bricks Insultion bricks have many factors affecting their thermal insulation effect due to their complex structure and harsh working environment. And each factor influences each other and is interconnected, so it is difficult to analyze and study precisely. However, among the many influencing factors, the material composition and structure, porosity and characteristics of pores, bulk density, temperature of lightweight thermal insulation bricks are the main factors. Material composition and structure The chemical mineral composition and crystalline structure of the material is the primary factor affecting the thermal conductivity of lightweight thermal insulation bricks. Generally speaking, the more complex the crystalline structure of lightweight thermal insulation brick, the smaller its thermal conductivity. The solid…

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$refractory materials for waste incinerator$

How to Select Refractory Materials for Waste incinerator

The selection of appropriate refractory materials is crucial for the efficient and reliable operation of waste incinerator. The incinerators operate under extreme conditions, including high temperatures, corrosive gases, and mechanical stress. Before selecting the suitable materials, we need to have a clear understanding of the materials,and then there are several factors needed to be considered during the selection of the materials. Understand the difference of the refractory materials Various refractory materials are available for use in waste incineration furnaces. Understanding their differences is essential for selecting the most suitable option: Fireclay Bricks: Fireclay bricks are economical and widely used in incinerators. They are suitable for areas with lower chemical attack. However, they have limitations in highly corrosive environments. High-Alumina Bricks:…

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$refractories for hot blast stoves$

Recommended Refractories for Hot Air Stoves

What Are the Unshaped Refractory Materials Used in Hot Blast Stoves? Unshaped refractory materials for hot blast stoves are mainly divided into the following types. refractory mortar A large number of silica bricks are used in the high-temperature parts of the hot blast stove, and silica refractory slurry is required to build the silica bricks. Silica refractory mortar uses silica powder as the main material, and the binding agent can be soft clay or chemical binding agent. Refractory castables When building the lining of the hot blast stove, some castables are also used , such as clay castables at the bottom of the hot blast stove, and andalusite castables between the outer wall of the ceramic burner and the combustion…

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electric arc furnace

Introduction of Electric Arc Furnace

Electric arc furnaces have a wide range of applications, and many metal production processes can be applied to electric arc furnaces. Electric arc furnaces are classified in several ways. According to the smelting form of the electrode, it can be divided into Non-consumable electrode type electric arc furnace, which uses tungsten or graphite as electrodes. The electrode itself is not consumed or consumed very little during the smelting process. Consumable electrode type electric arc furnace, which uses smelted metal as electrodes. The metal electrodes consume themselves while melting. Refractories for electric furnace linings According to the control method of arc length, it can be divided into: Constant arc voltage automatic control electric arc furnace. Constant arc length automatic control electric…

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$refractory materials selection$

Refractory Materials Selection for Torpedo Tank lining

In modern steel plants, torpedo mixing tank cars are not only containers for transporting and storing molten iron, but are also used as equipment for pretreatment of molten iron. When the molten iron flows in and out, the lining on the loading side is directly impacted and worn by the molten iron; the refractory material in the slag line is severely chemically corroded by the pretreatment agent; the temperature of the empty tank of the mixing tank truck is 700℃~800℃, and the temperature of the empty tank of the iron mixing tank truck is 700℃~800℃. The temperature of the blast furnace molten iron in the tank is 1450℃~1500℃, which causes the refractory lining to suffer severe thermal shock. Due to…

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$corundum refractory castables$

Refractory Castables for Different Parts of Cement Kilns

Refractory castables for kiln mouth Due to the high temperature, heavy wear and harsh working conditions at the kiln mouth, it is recommended to use corundum refractory castables, high-performance kiln mouth-specific refractory castables or improved kiln mouth-specific castables. Refractory castables for burners The working environment of the burner is around 1400°C, its flame temperature is around 2000°C, and it works in an alkaline atmosphere for a long time. The temperature changes more frequently and the temperature difference is large. The front end of the burner is always washed by high-temperature airflow carrying clinker dust, especially the lower part, so the refractory castable for burner needs to have sufficient wear resistance,good thermal shock resistance and good alkali resistance. It is recommended…

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$guidelines for the use of ladle refractories$

Guidelines for the use of ladle refractories

Causes of Ladle Refractory Materials Damage and Measures to Improve the Service Life The main reasons for the damage of ladle refractory materials include the following aspects. Chemical effects 1.The corrosion of refractory materials by the components of molten steel;2.The erosion of refractory materials by the components of molten slag;3.The damage caused by the reaction of the refractory materials themselves under the high temperature. Physical effects 1.The scouring effect of molten steel on refractory materials;2.The thermal shock caused by molten steel repeatedly acting on refractory materials,;causing cracking and peeling of refractory materials in continuous casting machines;3.The damage caused by the thermal expansion effect of refractory materials themselves;4.The impact of high-temperature molten steel on refractory materials;5.The erosion effect. Improper operation reasons…

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$refractory brick acceptance methods and precautions$

Refractory brick acceptance methods and precautions

How to accept refractory bricks? As an important industrial material, refractory bricks are widely used in various high-temperature furnaces and industrial processes. The quality and reliability of refractory bricks are crucial to industrial production and the safe operation of equipment. Therefore, the acceptance of refractory bricks is particularly important. Fireramo will introduce in detail the acceptance of refractory bricks and precautions to help you ensure that the quality and performance of refractory bricks meet the requirements. If you don’t know about refractory bricks, please read What is a refractory brick? Acceptance inspection method of refractory bricks Appearance inspection First of all, the appearance of the refractory brick is carefully inspected. The surface of high-quality refractory bricks should be flat and…

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high alumina mortars

Refractory castables, refractory cement and refractory mortar difference

Difference between refractory castables, refractory cement and refractory mortar Refractory castables, refractory cement and refractory mortars are all Monolithic Refractories, and it is easy to confuse refractory castables, refractory cement and refractory mortars for customers who don’t understand all three of them. Fireramo today for you to organize the refractory cement, refractory castables and refractory mortar between the three differences and applications . By reading this article, it can help you better understand the three unshaped refractory materials, refractory mortar, refractory castables and refractory cement, so that it is easier to buy the right refractory material for you. Refractory Mortar Refractory mortar can be divided into clay, high alumina, silica and magnesium refractory mortar according to the material. It is…

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$refractory cement castables selection guide$

Refractory cement castables selection guide

How to choose the right refractory cement castable Refractory cement castables have a simple production process, labor-saving and energy-saving, high construction rate, good quality, and can be prepared on-site according to the need or choose materials with excellent performance.Fireramo has organized the purchase of refractory castables for you from many aspects, from the perspective of application scenarios, economic conditions, and environmental protection performance to choose the refractory castable that is suitable for your project. Refractory castable is a kind of building refractory material widely used in high temperature industrial fields, such as steelmaking, ceramics, glass and other industries. It is made of a mixture of raw materials such as refractory aggregate, powder and binding agent. Refractory castable material is a…

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mullite castable

Mullite castables production process

Mullite refractory castables production process Mullite refractory castables have good flow properties, spalling resistance and heat preservation properties, suitable for use in high temperature parts of the heating furnace. Fireramo summarizes the production and formulation process of common mullite castables for you to improve the service life of the furnace body, reduce the thermal conductivity of the heating furnace body and increase the heat rate. Synthesis process of mullite refractory castables In order to reduce the production cost of lightweight aggregate in mullite castables, refractory castables manufacters choose low-iron gangue and high alumina bauxite after iron removal treatment as the main raw materials to introduce Al2O3 and SiO2, and the synthesized part adopts raw materials. The mixing of the raw…

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$corundum refractory castables$

Corundum Castables VS Corundum Mullite Castables

Difference between corundum castables and corundum mullite castables There are two kinds of corundum castables we often see, one is corundum refractory castables and the other is corundum mullite refractory castables. Both materials are commonly used in circulating fluidized bed boilers to do boiler lining refractory materials, both can be seen from the name contain corundum. As people in the industry know that both contain corundum, but the performance is completely different. Today, the refractory castables manufacturer will give you an introduction to the difference between corundum castables and corundum mullite castables. Corundum castables Corundum castable is the use of corundum Al2O3 content greater than 90%, corundum-based crystalline phase of the refractory products and with the appropriate amount of dispersant,…

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glass kiln structure

2023 Best Glass Kiln Masonry Guide

Sequence and method of glass kiln masonry Glass kiln is a melting device used to produce glass, usually consists of refractory materials, steel structure, transmission, combustion system, control system, etc. Fireramo has sorted out the refractory materials used for glass kiln building, and today we have sorted out the basic introduction of glass kiln, types of glass kiln as well as the masonry sequence and method of glass kiln building. What is a glass kiln? Melting device for glass production Glass kiln is a common kind of glass melting kiln, because the matching material in this kind of kiln’s trough-shaped pool is melted into glass liquid, so the name kiln.The working principle of a glass furnace is that the glass…

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silica bricks for coke oven

Comprehensive Guide to Silica Brick

Silicon Brick is a high quality refractory material which has excellent high temperature performance. Fireramo has compiled the most comprehensive guide for you to understand Silicon Brick, it includes definition of Silicon Brick, types of Silicon Brick, uses, advantages and so on. We are confident that you will have a clear understanding of silica bricks after reading this chapter. What is a silica brick? Silica brick is a siliceous refractory material composed mainly of squamous quartz, argillaceous quartz, and a small amount of residual quartz and glass phases. Silica refractory bricks are acid refractory bricks with excellent resistance to acid slag erosion. The silica content in silica bricks is usually above 94%, it has high high temperature strength, and the…

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high alumina castable

High Alumina Castables Pros and Cons

High alumina refractory castables are a kind of refractory material widely used in high temperature industry. Its unique composition and structure give it a series of advantages, but there are also some disadvantages. Fireramo has compiled a list of advantages and disadvantages of high alumina refractory castables to help you better understand high alumina castables. What is high alumina castable? High-alumina castable, also known as high-alumina refractory castable, is a common unshaped refractory material. Due to its simple construction and low cost, it is used in many kinds of thermal insulation body. High alumina castable is mainly made of high alumina bauxite aggregate, high alumina cement, silica fume and alumina powder and other materials after a certain proportion, it has…

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$composition of refractory castables$

Refractory castables composition

Composition of refractory castables Fireramo has found that many of our customers are unclear about the composition of refractory castables and the factors that affect their performance. Refractory castables are made up of a variety of materials and it is customizable. Depending on your specific needs, composition adjustments and ratios can be made to achieve a customized refractory castable. Today Fireramo has compiled a list of the materials that make up refractory castables and the material choices that affect the performance of refractory castables. What is a refractory castable? Refractory castable material is a kind of unshaped refractory material used for the lining of high temperature industrial kilns and thermal equipment. It is characterized by easy construction, long service life,…

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$difference between refractory bricks and insulation bricks$

Refractory Brick and Insulation Brick Differences

Difference between refractory bricks and insulation bricks Common refractory materials include products such as refractory bricks and insulation bricks. According to the different quality of the bricks, we also often refer to refractory bricks as heavy bricks and insulation bricks as light bricks. We find that many customers can not well distinguish the difference between refractory bricks and Insulation bricks Today, we will introduce the differences and distinctions between refractory bricks and Insulation bricks from the aspects of material composition, performance and use. Refractory bricks and insulation bricks all belong to a kind of refractory material, only its indicators and uses are different. Simply put, refractory bricks are in direct contact with the flame, mainly refractory role, mostly used in…

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lightweight firebricks for electric furnace lining

Lightweight Firebricks for Electric Furnace Lining

Electric arc furnace is a commonly used equipment in iron and steel smelting, which utilizes electrodes to generate high temperatures to melt ores. Electric arc furnace is an indispensable equipment in the steel smelting process, its furnace body using a variety of refractory materials composition. The refractory materials used for electric arc furnace lining are very important, and the right materials can ensure that the electric arc furnace plays a stable performance and prolong the life of the furnace. Today Fireramo has compiled a list of five types of lightweight refractory bricks commonly used for electric arc furnace linings. Why choose lightweight fire bricks for electric furnace lining? In the masonry electric furnace body, often divided into refractory layer, high…

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$principles of refractory material selection$

Principles of Refractory Material Selection

How to choose the suitable refractory material? Refractories play a key role in various high temperature industrial equipment. Refractories are an essential part of high-temperature industrial production, in order to ensure the normal operation of industrial production and extend its service life, it is crucial to choose the right refractory materials. Fireramo will introduce the selection of refractory materials to help readers from the use of refractory materials, physical properties and other seven aspects of the selection of suitable refractory materials. I. Refractories to meet the conditions of use When choosing refractory materials, the first thing to consider is the use of high-temperature industrial equipment conditions. Understanding the process conditions of the equipment is the basis for selecting the appropriate…

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high alumina insulatingbrick for sale

Guide to Aluminum Refractory Bricks

Aluminum brick is a common refractory material, and high alumina brick is the more familiar aluminum refractory brick. In addition to high alumina bricks, there are many other alumina bricks, today Fireramo summarizes the common alumina bricks, the characteristics of alumina bricks, as well as the composition and applications. What is alumina brick? Aluminum refractory brick is a special type of refractory brick, which is made of high-purity aluminum oxide (Al2O3) as the main component. Aluminum refractory bricks are widely used in high-temperature industrial kilns, metallurgy, glass and chemical industry because of their high temperature resistance and resistance to chemical attack. Common aluminum refractory bricks High Alumina Brick The main component of high alumina bricks is alumina, with a content…

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silicon mullite bricks

The ultimate guide to mullite refractory materials

Mullite is an important refractory component, and common mullite refractory products include mullite bricks, silica mullite bricks, corundum mullite bricks and so on. Mullite series refractory bricks are widely used in high temperature industrial equipment and furnace lining. Fireramo, as a leading refractory material supplier in China, in order to better help you understand mullite refractory material. We have compiled some of the most frequently asked questions about mullite, which are asked by customers from all over the world. We believe that after reading this article, you will also have a clear understanding of mullite refractory material. What is mullite refractory? Mullite refractory is a type of refractory material with mullite as the main component. Mullite is a mineral composed…

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cutting vermiculite brick

Cutting Vermiculite Refractory Brick Methods and Precautions

How to cut vermiculite refractory tiles? Vermiculite bricks are a insulation brick commonly used for lining high temperature industrial equipment and furnace chambers. In some special cases, vermiculite refractory bricks need to be cut to fit specific size requirements.Due to its special properties and applications, cutting requires some attention to details and techniques to ensure the quality of the cut.Fireramo will explain in detail how to cut vermiculite refractory tiles and provide you with some precautions to take when cutting to ensure a safe and effective operation. I. Selection and inspection of cutting tools Selection of suitable cutting tools According to the size and shape of the vermiculite tiles to be cut, choose a suitable cutting tool. For example, for…

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horizontal coke oven

Characteristics of two types of coke ovens

Characteristics and Applications of Channel Coke Ovens and Horizontal Coke Ovens What is a coke oven? A coke oven is a piece of equipment used to produce coke, which is widely used in the metallurgical, chemical and energy industries. Coke ovens heat fuels such as coal to high temperatures through high temperature, causing pyrolysis and carbonization reactions to produce coke as the main product. Coke is an important metallurgical raw material used in ironmaking, steelmaking and other metal smelting processes, and is also used as a chemical raw material and energy source. Types of Coke Ovens Coke ovens are usually categorized into two types: horizontal coke ovens and vertical coke ovens. Horizontal Coke Ovens Horizontal coke ovens are a common…

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$ten kinds of refractory bricks use$

Ten kinds of refractory bricks use

Ten common refractory bricks use and use requirements Refractory bricks are a special kind of building materials with excellent high temperature resistance, which are widely used for in high temperature industrial fields. What are Refractory bricks used for? Different types of refractory bricks have their own unique characteristics and uses.Fireramo will introduce ten common types of refractory bricks. Fireclay Bricks Fireclay refractory bricks are mainly made of clay, with excellent refractory performance and wear-resistant performance. Uses Refractory clay bricks are used for the refractory masonry of general furnaces. Kiln lining materials, furnace walls, furnace floor, flue, etc. The use of temperature below 1250 ℃. Combustion chamber parts, allowing the use of more than 1400 ℃. High Alumina Brick High-alumina bricks…

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$three construction methods of refractory gunning materials$

Three Construction Methods of Refractory Gunning Materials

Refractory gunning material is a material constructed by spraying. The refractory gunning material uses compressed air or mechanical pressure in the pipeline to obtain sufficient pressure and flow rate, and is sprayed through the nozzle onto the sprayed surface to form a strong spray layer. The spraying methods of refractory gunning materials are divided into three categories: wet method, dry method and flame method. Wet spraying Wet spraying refers to the refractory gunning material added with water or liquid binder, and then sprayed onto the sprayed surface. Wet spraying methods are divided into four categories: mud method, wet method, semi-dry method and false dry method. The latter three methods are suitable for building furnaces or repairing furnace linings. The Mud…

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$what are refractory bricks$

What are refractory bricks?

What are refractory bricks? Refractory Brick Types Introduction Do you have some questions about refractory bricks? what are refractory bricks and how many types of bricks are there? In this article, Fireramo summarizes in detail the definition of refractory bricks, the types of refractory bricks and the main areas of application of the different types of refractory bricks. What are refractory bricks? Refractory bricks, also known as “furnace bricks”, are bricks that can withstand high temperatures without melting or decomposing. These tiles are made of refractory clay, quartz, cellulose, asbestos, and other materials, and the refractory materials used vary from one type of refractory tile to another. Because of the different raw materials, the specific properties and applications of different…

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$refractories for cement rotary kiln lining$

Refractory Bricks for cement rotary kiln lining

Rotary kiln linings with refractory bricks and refractory materials Cement rotary kiln is commonly used in the cement production process of the core equipment, its lining of refractory bricks for the normal operation and service life of the equipment has a vital role. fireramo summarizes refractory bricks and refractory materials commonly used in cement rotary kiln, if you do not know the cement rotary kiln, please read: Cement Rotary Kiln Most Complete Introduction. High Alumina Brick High alumina brick is one of the most commonly used refractory bricks for cement rotary kiln linings. It consists of high-purity alumina and other additives, and is characterized by high temperature resistance, good stability, chemical resistance and strong refractory properties. High alumina bricks are…

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complete introduction of cement rotary kiln

Complete Introduction of Cement Rotary Kiln

What is a cement rotary kiln? A cement rotary kiln is a piece of equipment used in the production of cement, also known as a cement kiln. It is a long, inclined rotating cylinder, usually made of steel and covered with refractory material inside. What is the function of a cement rotary kiln? The function of a cement rotary kiln is to convert limestone from raw materials into cement clinker through high temperature calcination. It is mainly used to heat raw materials such as limestone and clay to a high-temperature state, causing them to undergo a chemical reaction to produce clinker with silicate as the main component. Then after cooling, grinding and other processes, finally get our daily use of…

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Fireclay Brick2

Clay bricks refractory properties and uses

Clay Brick Refractory Properties and Uses Introduction Today, Fireramo received some inquiries from customers about clay bricks. For example, are clay bricks fire resistant? The answer is yes, because clay bricks, also known as fireclay bricks, have good refractory properties. What are the characteristics and applications of clay bricks? It might be a bit of a waste of time to reply individually. Therefore, firera summarizes the refractory properties and uses of clay bricks in detail for you in this article. What is clay brick? Clay bricks are made of refractory clay combined with press molding sintered, clay refractory bricks sintering temperature in more than 1400 degrees. During the manufacturing process, clay bricks undergo chemical and physical changes to form a…

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$refractory cement vs. refractory brick$

Refractory Cement vs. Refractory Brick: Comparing Performance and Exploring Applications

Refractory Cement vs. Refractory Brick In high temperature environments, the choice of refractory material is critical. Refractory cements and refractory bricks are common refractory materials, each with their own unique characteristics and uses.Fireramo will today provide a comprehensive comparison of refractory cements and refractory bricks and explore their advantages and limitations in different applications. Composition and structure Refractory cement, also known as Refractory Castable, is mainly composed of refractory stone, high-alumina cement and a small amount of additives mixed in a certain proportion. It is in powder form and needs to be mixed with water to form a paste before use. Refractory bricks have a variety of products, different products have different raw material composition. Common refractory brick products include…

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$refractory bricks materials for pizza ovens$

Refractory Bricks & Materials for Pizza Ovens

Pizza Oven Refractory Bricks & Refractory Materials Pizza is a global delicacy and the process of making it requires a lot of cooking tools and materials. A pizza oven is a specialized oven equipment for pizza making, and there are many types of refractory bricks and materials that can be used in the construction of a pizza oven.Fireramo has compiled a list of refractory bricks and materials used in the construction of a pizza oven and the advantages of using refractory bricks in the construction of a pizza oven. What are the advantages of building a pizza oven using refractory bricks? The use of bricks to build a pizza oven makes a big difference in the texture and flavor of…

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problems caused by high temperatures of cement kilns and solutions

Problems caused by high temperatures of cement kilns and solutions

Problems caused by high temperatures of cement kilns and solutions During the production process of cement kilns, some problems may occur due to high kiln temperatures. Fireramo summarizes the common problems caused by high temperatures in cement kilns and the corresponding solutions. Kiln Leakage Leakage from the kiln body is a prominent problem in the actual operation of cement kilns. Due to the relatively high temperature requirements of the kiln production environment, the molecular structure of the refractory bricks used in the kiln is prone to change at high temperatures, which leads to cracks in the bricks due to expansion, resulting in the leakage of raw materials, which greatly reduces the safety and effectiveness of cement production. Wear and tear…

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difference between fused azs and sintered azs

Difference between Fused AZS and Sintered AZS

Difference between Fused AZS and Sintered AZS Fused AZS and sintered AZS are two common zirconia-aluminum-silica (AZS) composites that are commonly used as refractory materials for glass furnaces and glass kilns in the glass industry. Although they both contain similar main components, there are some important differences in the preparation process and performance characteristics.Fireramo, as a manufacturer of refractory bricks, in this article we will introduce the differences between fused AZS and sintered AZS in the following aspects. Preparation process Fused AZS Fused AZS is produced by melting raw materials in a high temperature melt and then pouring them into a mold to solidify. This process gives fused AZS a high density and uniform chemical composition distribution, which improves its…

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High alumina bricks vs. phosphate bonded high alumina bricks

High alumina bricks vs. phosphate bonded high alumina bricks In industry, both high alumina bricks and phosphate bonded high alumina bricks are commonly used refractory materials for kilns and furnaces in high temperature environments.Fireramo as a manufacturer of refractory bricks, this article will explain the difference between high alumina bricks and phosphate bonded high alumina bricks in order to how to choose the right refractory bricks. Regular high alumina bricks and phosphate bonded high alumina bricks are both refractory bricks with a high alumina content, but there are significant differences between them. The difference between high alumina bricks and phosphate bonded high alumina bricks Composition High-alumina bricks are sintered at high pressure and high temperature. High-alumina bricks have high refractoriness…

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several aspects of rotary kiln masonry should be noted

Several aspects of rotary kiln masonry should be noted

Several aspects of rotary kiln masonry should be noted The rotary kiln is an important piece of industrial equipment widely used in cement production, metallurgy, chemical industry and other industries. During the masonry process of rotary kiln, proper operation and precautions are essential to ensure the stability and safe operation of the kiln. fireramo will introduce several aspects of rotary kiln masonry that require attention, aiming to help you understand the key points of the masonry process in order to ensure the quality of masonry and the reliability of the kiln. During rotary kiln refractory brick masonry, workers should pay attention to the following points in order to ensure the quality of masonry. Material selection In rotary kiln masonry, the…

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graphite electrode use guide

2023 Best Graphite Electrode Usage Guide

Graphite Electrode Use Guide Graphite electrodes play a key role as an important conductive material in metallurgical, chemical and power applications. Proper use and maintenance of graphite electrodes not only ensures efficient energy conduction, but also extends their service life and increases productivity.Fireramo provides you with a detailed graphite electrode user guide to help you select, install and maintain graphite electrodes correctly to ensure reliable operation and excellent performance. Graphite Electrode Selection When selecting a graphite electrode, the following factors need to be considered Application requirements Select the appropriate type of graphite electrode according to the specific application requirements, such as normal power graphite electrode, high power graphite electrode or ultra-high power graphite electrode. Ensure that the selected electrode can…

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$bonding mechanisms of refractory binders$

Bonding Mechanisms of Refractory Binders

Bonding Mechanisms of Refractory Binders Refractory binders play a vital role in the formation and stability of refractory materials in high temperature applications. Understanding the bonding mechanism of refractory binders is essential to optimize their performance and ensure the integrity of the refractory structure.Fireramo has compiled the fundamentals behind the bonding mechanism of refractory binders to give you a better understanding of refractory binders. Fireramo is an excellent refractory supplier, exporter with over 30 years of experience in the refractory industry, in-house research & development & production of high quality refractory materials, we are happy to help you with all your high temperature refractory problems! What is Refractory Binder? Refractory binders are glues that bind refractory bricks, castables and fibers…

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$basic requirements of coke oven refractory bricks$

Refractory Bricks for Coke Ovens Selection Guide

Basic requirements of coke oven refractory bricks Coke ovens are essential equipment in the metallurgical and chemical industries for converting raw materials into high-purity metals or chemical products. At high temperatures and in extreme environments, temperatures inside coke ovens can reach thousands of degrees Celsius and are often subject to chemical corrosion and mechanical stress. Refractory bricks for coke ovens are a key material for the stable operation of coke ovens, which must have excellent refractory properties at high temperatures and in harsh environments.Fireramo will provide you with a detailed introduction to the basic requirements of refractory bricks for coke ovens, including refractory properties, chemical stability and physical properties, in order to help you better understand and select the right…

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$how to increase the service life of refractories$

How to increase the service life of refractories?

How to increase the service life of refractories? Refractories are a kind of consumables for high temperature equipment. The use of refractory lining to resist high-temperature erosion can protect the facility from being damaged, but due to the selection of refractory materials and various factors, the use effect is not ideal. As a refractory manufacturer, today we will focus on how to increase the service life of refractory materials. Reasonable plan 1. Regarding different working conditions and different using positions for the industrial furnaces, different refractory materials. It’s the direct factor to increase the service life of refractory materials. 2. The structure of the furnace bodies should be designed reasonably. For example, the roof of the open hearth is changed…

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cement kiln crusting and clogging causes and solutions

Cement kiln crusting and clogging causes and solutions

Cement Kiln Crusting And Clogging Causes And Solutions Cement kiln crusting, clogging and build-up of raw materials in the precalciner system are still common challenges in the cement production process. In precalciner kiln systems, when raw materials are heated, thermal and physical effects can lead to skinning and clogging of the raw materials in certain areas of the system, resulting in stagnant material flow. Fireramo, the refractory manufacturer, summarizes the main causes of crusting and clogging problems in cement kiln precalciner systems and the measures to solve them. Main causes of raw material skinning inside the cement kiln Uneven composition of raw materials The composition of raw materials used in the cement production process may be non-uniform. Raw materials with…

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Refractory castables in cement kilns damage common causes and solutions

Refractory castables in cement kilns damage common causes and solutions Cement kiln is one of the core equipments for cement production, and refractory castable is an important material to protect the inner wall of cement kiln. However, refractory castables are often damaged due to the extreme conditions of the working environment and long-term high temperature effects. This article will introduce the common causes of refractory castables damage in cement kilns and provide corresponding solutions. Refractory castables for cement kilns damage common causes Refractory castables are widely used in cement production industry because of their low production cost and convenient construction, and their normal service life is usually more than one year. Anchor falling off causes castables to fall off In…

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