... technological arrangement, easy to be installed , dismantled and moved, safe operation!Applicable materials:Loose materials such ... :clay powder, pulverized coal, cement, sand, grain, smallpiece of coal , cobble, and cast iron filings, etc.While it ... is not applicable for materials with high viscosity and easy to be curdled.Widely applied:It is ... . LSY219 Spiral Screw Conveyor for powder and gravel