Alkali resistant bricks for cement kilns


Alkali resistant brick of cement kiln refers to the clay Fire brick with alkali resistance in the cement kiln system with low alumina refractory clay as the main raw material. The main raw materials of alkali resistant bricks include pyrogem, Pyrophyllite, silica, etc. The alkali resistance mechanism of alkali resistant bricks is to react with alkali metal oxides at high temperatures to produce a high viscosity liquid phase, forming a glaze protective layer, covering the surface of the bricks to block surface pores, preventing the infiltration and erosion of alkali metal molten substances, and achieving the goal of alkali resistance corrosion.

Alkali resistant bricks can be divided into ordinary type, high-strength type, dome type, and insulation type.

Application of alkali resistant bricks in cement kilns

Ordinary alkali resistant bricks are mainly used in cement kiln preheaters, third air ducts of decomposition furnaces, and other parts.

High strength alkali resistant bricks are mainly used for cement kiln preheaters, decomposition furnaces, tertiary air ducts, vertical rising flues, cyclone straight tubes, and cones.

Arch alkali resistant bricks are mainly used in cement kiln preheaters, decomposition furnace tertiary air ducts, and other parts.

Insulated alkali resistant bricks are mainly used for the rear kiln entrance, kiln door cover, and cooler of cement kilns.

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