Screw conveyor

Screw conveyor is continuous conveyor machinery without traction components. There is no additional driving part outside closed trough except drive unit. It has the advantages of simple structure, less land occupation, equipment easy to be sealed, convenient for multi-point feeding and discharging, easy operation and management. It's normally used for conveying of powder and granular material such as raw meal, pulverized coal powder, cement and slag in horizontal or less than 20° tilt direction. It can also be used as feeding machine or completing mixing operation during conveying period.

Screw conveyor commonly used can be divided into LS type (U shape groove type) and MLG (tube type) as per structure form and selection can be determined according to actual requirement.

Screw conveyor structure diagram

Representing method of screw conveyor specification

LS(MLG) nominal diameter × nominal length—screw type—drive method—bushing lining.

Drive methods: C1 method—Single ended drive; C2 method—Double ended drive.

Screw types: B1 method—Screw surface with entity; B2 method—Draper-type screw surface.

Bushing lining: M1 method—Middle suspension bearing with copper, antimony, tin alloy (babbitt) bushing; M2 method—Middle suspension bearing with wear resistance cast iron bushing.

Parameter list of LS screw conveyor maximum conveying capacity