LS screw conveyor is in accordance with JB/T7679-95 of the screw conveyor of the standard design and manufacture, is the replacement of GX screw conveyor. LS screw conveyor is a closed tube rotating continuously with helical blade pushes the material of cement conveying machinery, mainly used for transportation of cement, fly ash, slag, powdered, particulate and other bulk materials, not suitable for conveying sticky, easy caking, fiber and other raw materials.