... /min! 4:IS09001 LSY series screw conveyor is a new type of transporting equipment, which uses rotaryscrew vane to push materials continuously ... , which includes:clay powder, pulverized coal, cement, sand, grain, smallpiece of coal , cobble, and cast iron filings, etc.While it is ... from cement warehouse to compounding machine in concrete mixing plant. 2012 LSY Screw Conveyor for cement