Refractories for large cement rotary kilns

The new dry-process cement rotary kiln is divided into a suspension preheater, a precalcining system outside the kiln, a rotary kiln system, a tertiary air duct, and a cooling system.

The cement rotary kiln requires refractories to have the following characteristics:

①Corrosion resistance.
② Thermal shock resistance stability.
③Abrasion resistance.

Based on the above characteristics, Kerui Refractories will give you the following material selection suggestions for reference only.

Preheater system	Ordinary alkali-resistant bricks, alkali-resistant castables, anti-skinning refractory castables
Precalciner	Anti-stripping high alumina brick, anti-skinning refractory castable, high alumina low cement refractory castable
Thermal insulation materials	Calcium silicate board, refractory fiber, insulation brick, lightweight castable

The refractory materials used in the rotary kiln system are as follows:

Firing zone	Upper and lower transition zone	Decomposition zone	Front and back kiln mouth	seat belt	Coal injection pipe
Magnesia-chrome brick magnesium iron spinel brick magnesium zirconia brick , magnesium and calcium brick	Spinel brick, magnesia zirconia brick, silicon molybdenum brick, anti-stripping high alumina brick	Spinel brick Antistripping high alumina bricks silicon Mo brick high alumina bricks	Corundum, corundum – mullite, high alumina refractory castable phosphate bricks, steel fiber reinforced phosphate bricks	Anti-stripping High Alumina Brick Silica Moro Brick Phosphate Brick	Corundum – mullite castable steel fiber reinforced castable low cement high aluminum castable