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Where Use Silica Brick
Silica brick is an acidic refractory material, which has strong resistance to acid slag or acid melt erosion, but poor resistance to alkaline material erosion, and is easily damaged by oxides such as Al2O3, K2O, Na2O, etc. Oxides such as FeO and Fe2O3 have good resistance.
Therefore, silica bricks are mainly used to build the carbonization chamber, combustion chamber and partition walls of coke ovens (about 73% of the refractory materials used in a coke oven are silica bricks), high temperature load-bearing of glass pool kilns and kiln roofs, pool walls and hot blast stoves Parts, carbon roasting furnaces and other thermal kilns. In order to improve the production capacity of modern large-scale coke ovens, it is necessary to thin the coke oven carbonization chamber, combustion chamber and partition walls, thus requiring the use of high-density and high-thermal-conductivity silica bricks. There are many varieties of silica bricks, which are divided into silica bricks for coke ovens, silica bricks for hot blast furnaces, silica bricks for electric furnaces, and silica bricks for glass kilns according to their uses. According to the complexity of the brick type, it is divided into standard bricks, ordinary bricks, special-shaped bricks and special-shaped bricks, etc.
