Desander

Abstract

The invention discloses a cyclone desander including a cylindrical drum (1), a conical drum (2) and a bracket (8), wherein the side wall of the cylindrical drum (1) is provided with a water inlet (3), the top of the cylindrical drum (1) is provided with an overflow water outlet (4), the bottom of the conical drum (2) is provided with a sewage discharge port (5), a sewage storage tank (6) is fixedly arranged on the conical drum (2), the sewage storage tank (6) and the sewage discharge port (5) are communicated, and the sewage storage tank (6) is in fixed connection with a stop valve (7). The beneficial effects of the cyclone desander are that: the stop valve is turned on only when large particle impurities gather in the sewage storage tank (6) and need to be intensively discharged, the number of times of sand discharge can be reduced, labor intensity can be reduced, water loss can be avoided, economic losses can be reduced; in addition, the spiral structural inner wall design enables the suspension in the water to gather more easily, and at the same time also enables water to spirally flow downward, so that wear is minimized, and slag removal efficiency is improved.

Description

technical field [0001] The invention relates to a solid-liquid separation device, in particular to a cyclone desander. Background technique [0002] At present, the sediment content in my country's rivers, rivers, lakes, seas and groundwater is very high, which has a serious impact on production water and residents' domestic water. The cyclone desander is made according to the mechanical principles of centrifugal settlement and density difference. Solid-liquid separation equipment, when the water flow enters the interior of the cyclone desander from the inlet of the cyclone desander at a certain pressure and flow rate, the water body will be strongly rotated due to the influence of the structure of the cyclone desander, due to the different density of water and sand Similarly, under the joint action of buoyancy, centripetal force and fluid drag, the clean water with low density rises and flows out from the overflow port at the top, and the sand with high density settles to the...

AI Technical Summary

Problems solved by technology

[0003] During the desanding process, under the action of high-speed centrifugal force, the impact on the inner wall of the desander is great, and the inner wall wears seriously, resulting in shortened service life, frequent replacement, affecting normal production, and increasing production costs.

In addition, in some cases, the sand content in the water is very high. Due to the limited volume of the desander, if the sand is not discharged in time, the sand and gravel settled along the inner wall will be carried out by the water of the upper swirl, which will reduce the performance of the swirl desander. , so most of the current cyclone desanders directly open the sewage outlet to discharge sand, which will cause a large amount of water loss, waste resources and increase costs

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