Pressure conveyor system for semi solids

摘要

The conveyor system comprises a conveyor tube (18) with an injection point (26). Downstream of this, a lubricating agent is drawn off from the boundary layer region between the tube wall and the stretch of viscous material, and used again. The lubricant is drawn off at a removal point (30) in the region of the outlet side end (28) of the conveyor tube or a definite conveyor tube section. The lubricant is filtered before re-injection into the tube.