Gs series drum sieve is used at the dolomite stockyard in magnesium plant. It will remove small-size dolomite before the dolomite come into rotary kiln. Gs series drum sieve could be widely used to separate dry powder and grains or wet grains for the business of metallurgy, building material, chemical industry, material grinding. Gs series drum sieve could be used for separating dolomite in magnesium industry and outputting balls from ball press. It could also be used for: 1. Separating different-size stone in quarry; and also soil and rock flour. 2. Separating sandstone in steinbruch. 3. In coal industry, it is used to separate lump coal and powder coal and for coal washing(one part of coal washing line) 4. In chemical and benefication industry, it is used to separate different-size block and powder. Features and benefits of gs series drum sieve 1. Screening hole is very hard to be jammed. 2. Stable running and low noise 3. Simple structure and convenient maintance. 4. Screening tube could be sealed up which is easy for dust-collector. 5. High reliable equipment and low investment. 6. Tacking special screening mesh, high efficiency and long working life. 7. Slight pollution due to sealing up and good for environment. The working principle of drum sieveï Drum sieve is installed on the rack slantly. Through speed-reducer, motor is connected together with drum by coupler which drive the drum device go around its axle. After the material comes into the drum, the material on the screen mesh will turn over and roll with the rolling and inclined drum and then the qualified material(undersize product) will come our through the screening hole, however, the unqualified material(oversize product) will be discharged out through the drum end. The material stuck in the screening hole could be taken out due to the material rolling and turning over in the drum to avoid blocking. The working principle of cylinder sand siftering machine and drum sieve extension is almost same, just with different name.