Industrial kilns are subject to varying degrees of damage whenever they are in operation. Over time, coke ovens are also subject to kiln damage. Because damage can occur to the refractory materials used in coke ovens, there is no way to avoid a reduction in workload and an increase in production costs.
Therefore, it is very important to maintain the kiln properly. The materials and methods used for maintenance have a direct impact on the effectiveness and efficiency of the repair work, and Fireramo has compiled a list of common methods and techniques used in the maintenance of coke ovens. Perhaps you are interested in the types and characteristics of coke ovens.
Extension the life of a large capacity coke oven for one year can create economic benefits for the enterprise of about 20 million yuan.
Therefore, vigorously carrying out the research of the maintenance technology of the coke oven body, adopting advanced repair technology, improving the maintenance methods, and prolonging the service life are very important for users.
According to Fireramo’s previous experience, the repair of coke oven is the principle” if small repair is workable, no need for overhaul or medium repair; if hot repair is workable, no cold repair; if maintenance is workable, no overhaul”, which shows the importance of hot repair.
Because of the poor thermal shock resistance of the silica bricks (usually 1 to 2 cycles), the bricks must be preheated before repair and then installed.
If the repair area is large, expansion joints need to be reserved. This not only inconveniences the operation, but also requires a long period of heating after the repair. This has a great impact on production. In addition, as the coke oven is in high temperature production for a long time, some parts of the kiln body may fall off or even collapse during kiln shutdown.
Hot repair is one of the most rapidly developing coke oven repair measures in recent years. It utilizes the special properties of the repair material, which can be used to repair large areas quickly under high temperature conditions. It has the characteristics of time-saving, labor-saving, no delay in production, and obvious repair effect. Silicon bricks for coke ovens can be used for hot repair of industrial kilns and furnaces built with ordinary silicon bricks without stopping the kiln. The repair time can be shortened by more than three quarters. In addition, the kiln can be operated again after 2 days of repair, which greatly improves the repair efficiency.
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