Combined efficient desander

Abstract

The invention discloses a combined efficient desander. The desander comprises a tank body, a liquid outlet pipe, an inclined sedimentation device, a liquid inlet pipe, rotary blades, a rotary shaft, arotary sand discharging device, a motor, a valve, a sand sedimentation box and a spiral conveying device. A stock solution enters the desander from a feeding opening along the tangential direction ofthe tank body; strong rotational movement occurs under the driving of the rotary blades; due to the fact that density of sand and water is different, water and fine solid particles with low density ascend under the combined action of centrifugal force, centripetal force and fluid drag force, secondary sedimentation is carried out through the inclined sedimentation device, and then the water and fine solid particles with low density are discharged from a water outlet; sand grains with large density enter the spiral conveying device through the valve at the bottom of the desander, third sedimentation is carried out by the sand sedimentation box, and finally the sand grains with large density are discharged from a sand outlet. The desander solves the problems that a conventional desander isdifficult for treating dirt with small specific gravity, is small in treatment amount and is low in desanding efficiency.

Description

technical field [0001] The invention relates to the technical field of environmental protection water treatment, in particular to a composite high-efficiency desander. Background technique [0002] my country is a country with a severe drought and severe water shortage. In order to alleviate the severe water shortage situation, water purification technology is particularly important. To purify water, it is first necessary to remove solid particles such as sand in the water. In the existing technology, it is used to remove solid particles such as sand in water. The particle method includes the following two methods. One is to settle the particles with higher density in the water body by standing and settling, and to remove the solid particles in the water by extracting the upper water body; equipment to achieve the purpose of rapid removal of particles. Among the above two methods, the first one has low energy consumption but takes a long time; the second one uses mechanical e...

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a composite high-efficiency desander, which is equipped with a triple desander, aiming to solve the existing problems of the desander in the prior art, such as small volume, low desander efficiency, and poor sand removal effect. question

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