The cyclone separator has good sorting efficiency, but sometimes it may cause some malfunctions due to improper operation and other external factors, resulting in a decrease in its working efficiency. Therefore, how to improve its working efficiency in the face of this situation?

1. Increase the feed pressure within the calibrated pressure range of the cyclone (0.1-0.12Mpa) and adjust it through the feed pump: the frequency conversion number of the feed pump can be increased until there is no overflow or roughness.

2. By adjusting the size of the cyclone sand settling nozzle, when there is a phenomenon of coarse running within the calibration range of the feed pressure, the sand settling nozzle can be replaced with a larger model to reduce the phenomenon of coarse running.

3. Blockage of the sand settling nozzle in the cyclone can cause a large amount of overflow and coarsening, and have a huge impact on subsequent processes. When the pressure of the cyclone is unstable, the body undergoes severe vibration, there is a large amount of overflow and thickening, and the bottom flow rate is very low, the sand settling nozzle and feed body of the cyclone should be checked for blockage in a timely manner. If there is blockage, it should be dismantled and cleaned immediately.

4. By adjusting the feed pump, the frequency converter of the feed pump can be reduced until there is no overflow, the liquid level in the pump pool is stable, and the sedimentation concentration is high.

5. When the ore pressure is within the calibrated range and the sand concentration is low, the sand settling nozzle can be replaced with a smaller model to reduce the occurrence of fine particles.

Therefore, by taking the above measures, it is possible to effectively prevent faults caused by improper operation, so that the working efficiency of the cyclone is not affected by these fault factors and can function normally and stably, and even indirectly improve its efficiency.

The correct operation method is also an efficient way to use a cyclone. The operation method of a cyclone is:

1. Before starting the test run, it is necessary to ensure that all connection points of the cyclone unit are securely fastened, and remove any residue from the pipes and unit casing to prevent leakage and blockage after driving. Ensure that the cyclone valve that has been put into operation is fully opened.

2. The valve can be fully open (such as running a cyclone) or fully closed (such as a backup cyclone), but it is not allowed to be in a semi open state (i.e. not allowed to control flow with the valve).

3. If possible, please test drive with clean water first. The feed of the cyclone can be provided by pumping or high-level tank. If the pump and cyclone throughput match, the pressure gauge displays a constant reading. To ensure that the pressure gauge reading does not fluctuate, if there is a significant fluctuation, the cause needs to be checked. The equipment is required to operate at a pressure not exceeding 0.3MPa.

4. When the equipment runs smoothly under normal pressure, check the leakage at the connection points and take remedial measures if necessary.

5. Check for blockages caused by residue entering the cyclone. Blockage of the feed inlet of the cyclone will reduce the overflow and sedimentation flow rate. Blockage of the sedimentation port of the cyclone will reduce or even cut off the sedimentation flow rate, and sometimes severe vibration may occur. If there is a blockage, the feeding valve of the cyclone should be closed in a timely manner to remove the blockage. To prevent blockage, facilities (such as chip screens) can be added to the feed pool of the hydraulic cyclone group to prevent coarse materials and debris. At the same time, the feed pool should be emptied in a timely manner when parking to avoid blockage accidents caused by sedimentation and high concentration when driving again.

6. When the equipment is confirmed to be running well through a clean water test, it can be operated with slurry input.

Change the diameter of the cyclone:

From the above equation, it can be seen that, while keeping other parameters constant, the processing capacity is proportional to the diameter of the cyclone, and the diameter of the overflow pipe is also proportional to the diameter of the cyclone. Therefore, Q is proportional to D2, which means that if the diameter of the cyclone increases by 2 times, the processing capacity will increase by 4 times.

Meanwhile, the adjustable parameters also include the diameter of the overflow pipe, the insertion depth of the overflow pipe, and the diameter of the sedimentation port.

Change the diameter of the overflow pipe:

The diameter of the overflow pipe has a significant impact on the entire cyclone. The larger the diameter of the overflow pipe, the lower the pressure, the higher the overflow flow rate, the coarser the overflow fineness, and the grading efficiency first tends to stabilize and then decreases. Therefore, the grading efficiency should be maintained within a stable range. The diameter of the sedimentation port has a relatively small impact on the entire cyclone, but the larger the sedimentation port, the greater the sedimentation amount and the content of fine particles will increase. Therefore, adjusting both the overflow and sedimentation ports simultaneously can change the relative yield of overflow and sedimentation.

The diameter of the overflow pipe of the cyclone has a significant impact on the cone ratio of the hydraulic cyclone. The cone ratio refers to the ratio of the diameter of the overflow pipe to the diameter of the sediment outlet (dov/ds), which is an important parameter affecting the volumetric yield and grading particle size of overflow and sediment. The cone ratio of cyclones used in actual production is generally 3-4. In general, the grading of fine-grained materials can use a smaller cone ratio, while the grading of coarse-grained materials uses a larger cone ratio.

Change the wall thickness and insertion depth of the overflow pipe:

The wall thickness of the overflow pipe can also affect the overflow effect. Experimental results show that to some extent, increasing the wall thickness can also increase separation efficiency, reduce internal energy loss, and improve production capacity.