The diffuser and the said venturi die powder body pump which are used for the venturi die powder body pump and said venturi die powder body pump making use of the said diffuser the pump the pump force manner null which is forced

摘要

An improved powder pump for pumping air entrained solid particulate powder material comprising a pneumatic conveyor line within which there is located a low pressure venturi pumping chamber. This venturi pumping chamber is intersected by a powder supply passage through which powder is drawn via a siphon tube into the conveyor line from a fluidized bed source of powder material. Over the inlet end of the siphon tube there is a cone shaped deflector plate which functions to reduce the inflow of air bubble created powder voids and consequent uneven flow of powder from the pump.