Sand throwing ring for submersible pump

Abstract

The invention discloses a sand throwing ring for a submersible pump. The sand throwing ring includes shaftless spirals, a lining strip, a U-shaped groove, a water tank, a flow guide plate, an effluentweir and a driving device. A sand-water mixture is fed into the water tank from the top of one end of a separator, substance with heavier weight in mixed liquid, such as sand, is deposited at the groove-shaped bottom, under the driven of the spirals, the sand grains rise along the inclined groove bottom and is pushed to move a certain distance after leaving the liquid surface, the sand grains aredischarged to a sand containing bucket through a sand discharge port after fully dehydrated, and water which is subjected to sand water separation is discharged from an overflow port and is sent to awater entering pond in a factory. The separation efficiency can reach 96%-98%, and particles with a particle size of greater than or equal to 0.2 mm can be separated; and the shaftless spirals is adopted, no water bearing is used, the maintenance is convenient, the structure is compact, and the weight is light.

Description

technical field [0001] The invention relates to the technical field of circulating pumps, in particular to a sand throwing ring for a submersible pump. Background technique [0002] Submersible electric pumps are involved in the fields of industry, agriculture, mining, urban construction, chemical industry, petroleum exploration, etc., and are ideal underground water pumping and water supply equipment. When the submersible pump is used in the water medium with a large amount of mud and sand, such as drainage of the excavation surface, new well flushing, brine submersible pump, etc., during the normal operation of the submersible pump, due to impurities or small gravel in the medium water, In order to prevent these impurities from entering the motor, damaging the rotating parts of the motor (such as guide bearings, thrust bearings, etc.), interfering with the normal operation of the motor, and the fact that the submersible pump is working underwater is difficult to find and r...

AI Technical Summary

Problems solved by technology

But in practice, there will still be small gravel infiltrated into the guide bearing and thrust bearing, resulting in uneven motor speed, wear on the bearing, shortening the life of the bearing, and reducing the working efficiency of the submersible pump