The cyclone is not working properly
Writer： admin Time：2020-07-28 16:42 Browse：℃
What we need to pay attention to if we want our cyclone equipment to be used better, the entrance aperture of the cyclone equipment, the diameter of the vortex detector and the top diameter are interrelated. Next, we and the cyclone manufacturer What are the factors that affect the normal operation of cyclone equipment under specific analysis?
1. The first thing to consider is the dilution of the feed
The dilution of the feed of the cyclone is an effective way to control the normal operation of the equipment. It is also a good way to speed up the separation work by adding the dilution book appropriately during the working process of the equipment. In order to ensure that the water level in the water tank in the equipment remains unchanged, the amount of dilution water used can be adjusted. Although the operator may be aware of the changes in the separation, when the degree of feed dilution is relatively high, it may directly affect the separation of the cyclone. The effect.
2, pressure control is also one of the factors that affect the normal operation of the cyclone
The pressure drop on the cyclone is the difference between the pressure at the inlet of the cyclone and the overflow pressure. When the cyclone is discharged into the atmosphere, the pressure at the inlet of the cyclone is the pressure drop. The pressure drop forces a certain volume of fluid through the cyclone. An indicator of the energy required by the flow converter. If the pressure is too high, it will increase the operation and maintenance costs of the pump. This is what we need to avoid when using it. The higher the pressure drop, the greater the flow rate of the cyclone, which will produce a better separation effect.
3. Orifice plate of cyclone
People who often use cyclones may know that the various small holes on the equipment have a great impact on the performance of the equipment. It should be noted that we need to cut off the power and stop the operation when we replace it.
Equipment operation, fault diagnosis and maintenance
Before use, check whether the cyclone and pipeline are in normal condition. According to the amount of incoming ore, determine the number of cyclones to be used. Open the valve of the used cyclone and close the spare cyclone valve.
When the equipment is operating normally, check the stability of the pressure gauge, the flow rate of overflow and grit, and the discharge status from time to time, and regularly check the overflow, grit concentration and fineness.
1. Feeding pressure fluctuations: Feeding pressure should be stable and should not produce large fluctuations on the production pressure. Fluctuations in feed pressure will damage the performance of the equipment and affect the classification effect of the cyclone. Pressure fluctuations are usually caused by insufficient pump feed due to the drop in the liquid level of the pump tank and air traction or the blockage of debris in the pump. The pressure drop after a long period of operation is caused by pump wear.
Adjustment: ① If the pressure fluctuation is caused by the drop of the liquid level of the pump tank, it can be adjusted by increasing the liquid level or closing one or two cyclones or reducing the pump speed. ② If the pressure fluctuation is caused by the pump blockage or wear, the pump needs to be repaired.
2. Blockage: Check whether the overflow and grit discharge of all cyclones in operation are unblocked. If the flow rate of the cyclone overflow and sedimentation is reduced or the sedimentation is interrupted, it indicates that the cyclone is blocked.
Adjustment: ① If the overflow and grit flow are reduced, it may be that the feed port of the cyclone is blocked. At this time, close the feed valve of the blocked cyclone, remove it, and remove the blockage;
② If the grit flow rate is reduced or the flow is cut off, the grit port is blocked. At this time, the nut can be unscrewed to remove the debris in the grit port.
3. Analysis of sedimentation parameters: often observe the status of the sedimentation and discharge of the cyclone, and regularly check the sedimentation concentration and fineness. Fluctuations in the concentration of sedimentation or "fineness of sedimentation" should be adjusted in time. Under the normal working condition of the cyclone, the grit discharge should be "umbrella". If the sediment concentration is too large, the sediment will be columnar or intermittently discharged.
Adjustment: ① The high grit concentration may be caused by the large feed slurry concentration or the too small grit port. You can add an appropriate amount of water to the feed place first. If the sediment concentration is still high, you need to replace a larger grit port.
② If the sedimentation is discharged in an "umbrella shape", but the sedimentation concentration is lower than the production concentration, it may be caused by the low feed concentration. At this time, the feed concentration should be increased.
③ The reason for the “fine sand trapping” may be that the grit diameter is too large, the overflow pipe diameter is too small, and the pressure is too high or too low. The pressure can be adjusted first, and then a smaller grit port can be replaced to gradually debug to normal production state.
4. Analysis of overflow parameters: regular detection of overflow concentration and fineness. The increase of overflow concentration or "overflow roughness" may be related to the increase of feed concentration and the clogging of grit.
Adjustment: It is found that "overflow running rough" can first detect whether the grit port is blocked, then detect the feed concentration, and adjust according to the specific situation.
5. Equipment maintenance: Check the wear of each part of the cyclone frequently. If the thickness of any part is reduced by 50%, it must be replaced.
The most easily worn part of the cyclone is the grit port. If the grit clamp is found to be fine, check whether the grit port is worn or not, and replace the grit port.
There are many factors that affect the operation of the cyclone. If you encounter any difficult problems in the process of using the cyclone, you need to find a professional equipment maintenance personnel to perform maintenance. Do not operate blindly.
