What factors depend the separation efficiency of the hydrocyclone

Date: Aug. 14, 2021

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Cyclone is a very important classification equipment in mine beneficiation operations, and can also be used for concentration and dehydration. Its working principle is to use centrifugal force and gravity to rotate the coarse and heavy particulate matter to the wall, and finally form sedimentation. The smaller particulate matter moves upward with the liquid flow and finally overflows. If the hydrocyclone cannot be used reasonably in the mine, it will directly affect its work efficiency. Under normal circumstances, the factors that affect the work efficiency of the hydrocyclone mainly include nine aspects.

Factors that affect the efficiency of hydrocyclones

1. diameter

The diameter of the hydrocyclone is an important condition that affects its working efficiency. The larger the diameter of the hydrocyclone, the larger the production capacity and separation particle size.

2. cone angle

The working efficiency of the hydrocyclone decreases with the increase of the cone angle of the hydrocyclone, because the larger the cone angle of the hydrocyclone, the greater the resistance, which affects its production capacity.

3. the diameter of the feed pipe

The diameter of the feed pipe of the hydrocyclone has a certain effect on its processing capacity and classification efficiency. Generally, the larger the diameter of the feed pipe, the greater the processing capacity.

4. overflow pipe diameter and wall thickness

When the inlet pressure is constant, the diameter and wall thickness of the overflow pipe are proportional to its production capacity.

hydrocyclone sand separator for fine sand recovery

5. The shape and size of the inlet

The cut surface shape of the feed port of the general cyclone is mainly divided into two types: circular and rectangular. The feed port can convert the linear motion of the liquid flow into circular motion at the entrance of the column section. Therefore, the shape and size of the feed inlet of the cyclone directly affect its production capacity and separation efficiency.

6, underflow port diameter

The larger the diameter of the underflow orifice of the cyclone, the finer the grading particle size, but its production capacity increases as the diameter of the underflow orifice increases.

7. The inner surface roughness and assembly accuracy of the cyclone

Under normal circumstances, the inner surface roughness and assembly accuracy of hydrocyclones have little effect on their production capacity and separation efficiency.

8. Feeding viscosity

It has been proved through practice that the production capacity of the hydrocyclone will increase due to the increase of the feed viscosity.

9. The ratio of the diameter of the underflow port to the diameter of the overflow port

The ratio of the diameter of the underflow orifice to the diameter of the overflow is called the cone ratio. The cone ratio is an important parameter for cyclone design. Generally, the larger the cone ratio of the hydrocyclone, the smaller the grading particle size.

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