Industrial furnace brick and alkali-resistant bricks use silica, coke gemstone and appropriate amount of additives to improve the microstructure of products. In the process of use, it reacts with alkaline vapors to form a high-viscosity glass phase, which covers the surface of the brick to block the surface pores, blocks the infiltration of alkaline slag, and achieves the purpose of alkali corrosion resistance.

Industrial furnace refractory alkali-resistant bricks are generally used in the cement industry and the transition zone of rotary furnaces. Among them, alkali-resistant bricks have the advantages of high load softening temperature, good high temperature structural performance, and good thermal shock stability; at the same time, they have the ability to resist erosion. Strong, not easy to peel off and wear resistance.

Industrial furnace refractory alkali-resistant bricks overcome the shortcomings of ordinary high-alumina bricks, such as poor thermal shock resistance, low corrosion resistance to cement clinker, and low soft load of phosphoric acid bricks. Made by adding additives to increase compressive strength. Refractory and alkali-resistant bricks for industrial furnaces have the characteristics of good volume stability, corrosion resistance, and penetration resistance, and are widely used in preheaters, decomposers, and tertiary air ducts in cement furnaces.

Alkali-resistant bricks can be divided into four categories: ordinary type, high-strength type, vault type, and thermal insulation type. Ordinary alkali-resistant bricks are mainly used in cement furnace preheaters, tertiary air ducts of decomposition furnaces, etc.; high-strength alkali-resistant bricks are mainly used in cement furnace preheaters, decomposition furnaces, tertiary air ducts, vertical rising flues, and straight cyclone tubes. and cone parts; vault type alkali-resistant bricks are mainly used in cement furnace preheaters, calciner tertiary air ducts, etc.; heat-insulating alkali-resistant bricks are mainly used at the rear furnace mouth of cement furnaces. furnace door cover and cooler, etc.