... r / min (allowing 10% deviation range)2, transfusion volume Q-m3 /h &Application Screw conveyor/elevator is widely used in ... sectors,such as building materials,electric power,chemical industry,metallurgy, coal, machinery, and light industry, food and food industry. LS screw ... convey powder, granular and small-block materials, such as cement, coal, grain, chemical fertilizer, ash, sand, etc.The material ...