Industrial furnace bricks and alkali-resistant bricks
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.
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Silicate fire brick
Silicon thermal insulation refractory brick refers to the thermal insulation refractory products made of silica as the main raw material, with a SiO2 content of no less than 91%. In addition to the heat insulation perfor··· -
silica bricks manufacturing process
1.1 Determination of raw material ratio and particle compositionThe raw materials for making silica bricks are silica and waste bricks containing more than 96% SiO2, in addition to lime, mineralizers and organic binders.··· -
Alumina hollow ball bricks
Alumina hollow ball bricks are made of alumina hollow balls and alumina powder as the main raw materials, combined with other binders, and fired at a high temperature of 1750 degrees. It belongs to a kind of ultra-high t··· -
Anti-stripping high alumina brick for cement kiln
Anti-stripping high alumina bricks are made of high alumina bauxite clinker, mullite, kyanite, zircon sand, and binder first through granulation and powdering processes, mixed in a certain proportion, then pressed into s···