SCREW PUMP -MIXER Russian patent published in 2004 - IPC

FIELD: machine-building industry.

SUBSTANCE: the invention is dealt with machine-building industry, in particular, with production of pump - mixers intended for pumping-over of liquids and emulsions of a different viscosity range and mixing of several components simultaneously. The screw pump-mixer contains a housing with the main and additional branch-pipes to feed materials and an inlet chamber. A withdrawal branch-pipe is connected to the chamber. The housing has: an endless screw linked with a driving shaft and having a spiral lobe and a hollow hub with holes; gaskets. The pump is supplied with the by-pass pipes having shut-off elements linking the inlet chamber with an inlet zone of the endless screw, and with the washing pipelines having shut-off organs and connected to the by-pass pipes. The cavity of the endless screw hub is open on the side of the inlet chamber and through the holes made in the form of unloading windows and located at the angle of 120 ° in respect to each other with a shift along the shaft. The cavity of the hub is linked with the intercoil cavities of the endless screw. The endless screw hub is installed in the bearing assemblies located on the part of the shaft of the engine and the inlet chamber and protected by gaskets. The invention is directed to develop the pump ensuring qualitative mixing of several components and provision of the product to several consumers, and also having a simple device for the pump elements clearing.

EFFECT: development of the pump ensuring qualitative mixing of several components and having a simple device for the pump elements clearing.

2 cl, 1 dwg