Cyclone back pressure online adjustment device

Abstract

The invention discloses an on-line adjustment device for back pressure of a hydrocyclone, which comprises a back pressure device feeding pipe, a vertical cylinder, a conical funnel, a pressure regulating column and a lifting drive mechanism, the back pressure device feeding pipe One end is connected to the discharge port of the cyclone, the other end is connected to the tangential feed port on the side of the vertical cylinder, the lower end of the cylinder is coaxially connected with the conical funnel, and the upper end is provided with a seal The top plate, the pressure regulating column is located in the central hole of the sealed top plate of the cylinder, and the lifting drive mechanism is installed on the upper part of the cylinder and forms a driving relationship with the pressure regulating column. The invention changes the size of the discharge space by adjusting the depth of the pressure regulating column inserted into the cylinder, and then changes the back pressure of the cyclone, which is not only convenient to operate, but also can realize online and continuous adjustment of the back pressure of the cyclone. The use of this device can effectively improve the smoothness of material discharge, and ensure the separation effect of materials with different properties without affecting the continuity of production.

Description

technical field [0001] The invention relates to a device for adjusting the back pressure of a cyclone on-line, which can ensure the separation effect of materials with different properties, and belongs to the technical field of separation equipment. Background technique [0002] Cyclone is a common separation and classification equipment, which has the characteristics of simple operation process, high degree of automation and low investment and infrastructure cost. It is widely used in coal preparation, mineral processing and solid waste treatment and other fields. However, the cyclone has the following problems in practical application: because the sorted material has a large swirl residual pressure when it is discharged from the discharge port, it will form a huge energy vortex with the suspension in the collection box, resulting in The material cannot be discharged smoothly, or even block the discharge port, which seriously affects the smooth progress of production. Acco...

AI Technical Summary

Problems solved by technology

However, the cyclone has the following problems in practical application: because the sorted material has a large swirl residual pressure when it is discharged from the discharge port, it will form a huge energy vortex with the suspension in the collection box, resulting in The material cannot be discharged smoothly, or even block the discharge port, seriously affecting the smooth production

In view of the above problems, some scholars proposed to improve the separation effect of the cyclone by reducing the discharge port of the heavy product, but it is easy to cause the blockage of the discharge port of the heavy product; some scholars proposed to add a back pressure device behind the discharge port of the heavy product, Adjust the smoothness of the discharge through the back pressure device, so as to realize the adjustment of the separation accuracy of the cyclone, but at present, all back pressure devices must be replaced by parts of different sizes to realize the control of the discharge volume , and the replacement of parts will not only increase the cost of spare parts storage, but also the cyclone must be shut down, which affects the continuity of production and is more troublesome to operate

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