Low-wear friction method and device for delivering raw materials by compressed air

Abstract

The invention relates to a low-wear friction device for delivering raw materials by compressed air, belonging to machinery and being a positive displacement pump. Firstly, the invention is provided with no runner assembly, a liquid raw material is pressurized and sent to the point of use by compressed air by a closed container, as the liquid raw material has slight friction with slot wall and the rotating element contacted with the liquid raw material is only provided with a material feeding check valve and a material discharging check valve, the maintenance of parts is easy and convenient. Secondly, the outlet pressure of the pump can be adjusted simply, the outlet pump lift of the material is equal to the pressure of the compressed air in a closed slot body, the pressure of the compressed air can be adjusted by an air compressor arbitrarily, the procedure is simple and the pressure can be changed without the need of other extra sensors. Thirdly, the materials of the invention features wide range and good practicability, namely, the raw materials capable of flowing into the closed container of the air pump can be sent to the point of use by compressed air, the raw material being used has wide range. And finally, the invention has simple structure and can be manufactured by ordinary materials, thus no special wear material is needed; most of the parts are universal products and can be obtained easily, therefore the interchangeability is high, the maintenance is easy and the manufacturing cost is low.

Description

technical field [0001] The present invention relates to machinery, in particular to a method and device for pumping raw materials with compressed air with low wear and tear, especially the method and device for pumping raw materials with compressed air with low wear and tear, which are widely used in fluid slurry transportation operations. device. Background technique [0002] At present, the commonly used pumps on the market include centrifugal pumps and positive displacement pumps, both of which have high-speed rotating components in contact with the conveyed material, because the relative movement between solid particles in the material and the rotating components is severe and the friction is large , Serious wear and tear on rotating components. In order to improve the service life of the pump, it is often required to be made of superhard materials such as high-chromium steel, and the manufacturing precision of the high-speed rotating components is also required to be h...

AI Technical Summary

Problems solved by technology

In order to improve the service life of the pump, it is often required to be made of superhard materials such as high-chromium steel, and the manufacturing precision of the high-speed rotating components is also required to be high, so that it can maintain dynamic balance and stable operation, so its production cost high

If the conveyed fluid contains high-abrasion materials such as corundum or alumina powder, its high-speed rotating components will be quickly worn and its service life will be reduced. Therefore, the existing electric pumps have the defects of being limited by the conveying objects, high cost and high maintenance cost.

Images