... to the shaft screw conveyor, belt conveyor and one of the main equipment of the sludge dewatering system.WS-LS shaftless ... waste water treatment, building materials, electricity, chemical industry, metallurgy, coal, machinery, light industry, grain and food industry.Advantages as ... granular powder and small caking materials such as dehydrated sludge, coal,food, fertilizer, ashes, sand, and so on. The ...