Cyclone desander

Abstract

The invention relates to the technical field of separating devices and discloses a cyclone desander which comprises a device base and a hydrocyclone, wherein a support frame is fixedly mounted on thetop of the device base; a sand grain spiral discharging device is fixedly mounted on the inner side face of the support frame; a discharging cylinder is fixedly mounted on the top of the support frame; an upper water outlet fixedly communicates with the top of the hydrocyclone; the top of the upper water outlet fixedly communicates with the bottom of the discharging cylinder; and a feeding cylinder is fixedly mounted on the back of the support frame. According to the cyclone desander, a partial pressure seat communicating with a pump body as well as a medium communicating cavity and an air communicating cavity formed in the partial pressure seat are arranged, so that the air communicating cavity communicates with the hydrocyclone through a negative pressure communicating hole, the bottom of the hydrocyclone further forms rotational flow under the action of negative pressure, and the centrifugal force of the medium in the hydrocyclone is not reduced while reducing the impact force to the hydrocyclone inner wall from the pump body pressure to ensure the separating effect of the hydrocyclone.

Description

technical field [0001] The invention relates to the technical field of separation devices, in particular to a cyclone desander. Background technique [0002] The cyclone is a common separation and classification equipment. The principle of centrifugal sedimentation is commonly used. When the two-phase mixed liquid to be separated enters the cyclone tangentially from the periphery of the cyclone at a certain pressure, a strong three-dimensional elliptical strong rotation is generated. In shear turbulence movement, due to the particle size difference between coarse particles and fine particles, they are subjected to centrifugal force, centripetal buoyancy, fluid drag, etc., and are affected by centrifugal sedimentation. Most of the coarse particles are discharged through the bottom outlet of the cyclone, while Most of the fine particles are discharged from the overflow pipe, so as to achieve the purpose of separation and classification. [0003] The centrifugal force generate...

AI Technical Summary

Problems solved by technology

[0003] The centrifugal force generated by the currently used cyclone is completely formed by the impact and rotation of the feed inlet and the shell, which is easy to cause damage to the impacted parts inside the shell for a long time, and there is no restriction on the inside of the cyclone. Centrifugal movement device, which will easily lead to poor separation effect of materials. When the pump body pressurizes the materials, all the acting pressure acts on the cyclone shell, so that part of the work and the cyclone shell The impact between the loss, so that the device part of the useless work

[0004] In the process of using, during the centrifugal rotation of the material, some particles with a density similar to that of water will enter the feeding port, so that it is inevitable that large-density objects will enter the upper water outlet, and then It makes the separation effect worse, and the purity of the material cannot be guaranteed.

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