... metallurgy, chemical industry, environmental protection, etc. It can be divided into cement kiln, metallurgy chemical kiln ... , nickel, wolfram, chromium, etc., the rotary kiln can be used to sinter and roast ore, concentrate, intermedium ... ;4. Easy operation.Working PrincipleThe rotary kiln can be divided into cement kiln, metallurgy chemical kiln ... 1 Rotary Kiln, Cement Kiln Machinery, Mining Machinary