... 2. safety 3. reasonable, 4. high efficiency, Rotary Kiln Rotary kiln is the main equipment of cement clinker dry - ... industry, building refractory materials, environmental protection, etc. The rotary kiln consists of cylindrical shell, supporting device, supporting device ... advanced efficient shaft preheated, five-grade cyclone preheated. Rotary kiln belongs to building material equipment, which can be ...