SCREW CONVEYOR FOR DRILLING WASTE
Screw Conveyor / Auger Conveyor is a mechanism that requires a rotating helical screw blade, called a "flighting", usually within a tube, to move liquid or granular materials. They are employed in various bulk handling industries. Screw conveyors in drilling rig are often used horizontally or at a slight incline as an inexpensive way to move drilling mud waste.