How to Adjust The Concentration And Fineness of The Underflow of Hydrocyclone?

Date: 2021-10-28     From: Longding     Author: admin

During the operation of the hydrocyclone, the underflow discharge status, concentration, and fineness of the cyclone should be checked regularly. When the underflow concentration fluctuates in the hydrocyclone, it should be adjusted in time. So how to adjust the concentration and fineness of the underflow of hydrocyclone?

Operation and adjustment of the cyclone of the fine sand recovery unit

1. Low overflow concentration and fine particle size

To reduce the pressure or adjust the concentration of the ore, you can also replace the small grit nozzle to meet the requirements.

2. High overflow concentration and coarse particle size

Increase the pressure and adjust the concentration of the ore, and can also replace the large sand spout. Can not rely on only one method to adjust, because this may make the fine sand recovery machine cyclone work is not normal and stable enough.

3. The sedimentation of the cyclone of the fine sand recovery machine is discharged in an umbrella shape. The angle of grit should be between 10 degrees and 20 degrees. And the concentration should reach about 75% is the best working condition of the cyclone of the fine sand recovery machine. When the spreading angle of the hydrocyclone is too large, there are several reasons.

The grit nozzle is too large and the concentration of grit is too low

It can be solved by replacing the small sand spout.

Low feeding pressure

Adjust the feed pressure of the cyclone of the fine sand recovery machine.

The amount of ore feed is too small and the concentration of ore feed is too low

Adjust the amount of feeding ore.

Judgment of pressure on mine

1. The theoretical pressure adjustment range of the cyclone group of a fine sand recovery machine is 0.06-0.10Mpa. If the pressure is too high, the cyclone of the fine sand recovery machine will be relatively worn.

2. The theoretical pressure adjustment range of the cyclone group of the second-stage fine sand recovery machine is 0.08-0.16Mpa. If the pressure is too low, the concentration of sedimentation will decrease, and the overflow concentration will become coarser, which will affect the process. In short, in the pressure adjustment, it is necessary to ensure that the pressure of the cyclone group of the first-stage fine sand recovery machine cannot be high, and the pressure of the cyclone group of the second-stage fine sand recovery machine cannot be low.