A Brief Analysis of the Application of Silica Bricks in Refractories

The properties and processes of silicon bricks are closely related to the crystal form conversion of SiO2. The true density of silicon bricks is one of the important signs to judge the degree of crystal form conversion. Therefore, true density is an important quality index for silicon bricks. The general requirements are below 2.38 / cm3, and high-quality silicon bricks should be below 2.35 g / cm3. The Carrefour kiln believes that the true density is small, reflecting the large number of scale quartz and cristobalite in the brick. The amount of residual quartz is small, so the residual expansion is small, and the decrease in strength during use is also small.


 
Silicon brick is mainly used for the carbonization chamber, combustion chamber and partition wall of coke oven (about 73% of refractory materials for coke oven are silicon brick), glass pool kiln and kiln roof, pool wall, high temperature bearing parts of hot air furnace , Carbon furnaces and other thermal furnaces. In order to increase the production capacity of modern large-scale coke ovens, it is necessary to thin the coke oven carbonization chamber, the combustion chamber and the partition wall, so it is required to use high-density and high thermal conductivity silicon bricks. There are many types of silicon bricks, which are divided into silicon bricks for coke ovens, silicon bricks for hot blast stoves, silicon bricks for electric furnaces, and silicon bricks for glass kilns, etc. according to their applications. According to the complexity of the brick type, it is divided into standard type brick, general type brick, special type brick and special type brick.
 
If you are interested in our fused azs bricks, or need other types of refractory materials, please contact our Tianyang Refractory Group, we will definitely provide you with the best quality refractory materials and the most reasonable quotation.