New style dry process cement rotary kiln has these process characteristics as follows:

　　Kiln temperature is higher;

　　Kiln speed is slower;

　　Alkali attack is relatively serious;

　　Kiln structure is complicate;

　　High requirements to energy saving.

　　In view of the above, cement kiln refractories should be carefully selected in order to extend the service life of kiln linings and improve productivity of cement. Accordingly, Hitech Material provides an integration solution for cement kiln refractories.

　　1. Burner

　　Working layer: high-alumina refractory castables, alundum refractory castables

　　2. Preheater and connecting pipes

　　Working layer: common alkali-resistant bricks, alkali-resistant refractory castables

　　3. Precalciner

　　Working layer: anti-stripping high alumina bricks, alkali-resistant bricks, alkali-resistant refractory castables

　　Heat insulation layer: calcium silicate insulating boards, diatomaceous bricks, light weight castables

　　4. Tertiary air duct

　　Working layer: super duty alkali-resistant bricks, alkali-resistant refractory castables

　　Heat insulation layer: calcium silicate insulating boards, diatomaceous bricks, light weight castables

　　5. Grate cooler

　　Working layer: high-alumina bricks, fireclay bricks, silicon carbide composite bricks, high-alumina refractory castables

　　Heat insulation layer: calcium silicate insulating boards, diatomaceous bricks, light weight castables

　　6. Kiln hood

　　Working layer: high-alumina bricks, super duty refractory castables

　　Heat insulation layer: calcium silicate insulating boards, diatomaceous bricks, light weight castables

　　7. Rotary kiln

　　(1) Outlet zone & Inlet zone

　　Working layer: anti-stripping high alumina bricks, high-alumina refractory castables

　　(2) Upper & Lower transition zone

　　Working layer: anti-stripping high alumina bricks, basic bricks, chemical binder with high alumina bricks

　　(3) Burning zone

　　Working layer: basic bricks, high quality phosphate-bonded high alumina bricks

　　(4) Calcining zone

　　Working layer: phosphate-bonded high alumina bricks, basic bricks, anti-stripping high alumina bricks

　　(5) Preheating zone

　　Working layer: alkali-resistant insulating bricks, fireclay bricks, anti-stripping high alumina bricks