10 + Troubles and Troubleshooting of Hydrocyclones

For hydrocyclones, the troubles that often occur include abnormal super-granularity, failure to reach the cut point, unstable performance, blockage and so on. Below are 10+ troubles about hydrocyclones and the troubleshooting.

Trouble 1: Hydrocyclone Vibration Violently

Troubleshooting

• If empty suction occurs, use the suction pipe.
• Large amount of material, change the feed/hydrocyclone parameters;
• Linear layout, control entrance;
• The overflow pipe is deformed and the overflow pipe is replaced;
• Local blockage in the hydrocyclone, stop and check.

Trouble 2: low Underflow Density

Troubleshooting

• If the hydrocyclone is not fed correctly, replace the discharge nozzle/overflow pipe;
• The size of the discharge nozzle is incorrect, use the correct size discharge nozzle.

Trouble 3: Abnormal Over-Granularity

Troubleshooting:

• Underflow nozzle is worn seriously, so replace the suitable underflow nozzle.
• If the feeding density is too high, check the blockage;
• Feed reverse flow, replace easy-to-grind parts.

Trouble 4: Hydrocyclone Blockage

Troubleshooting

• The mismatched material enters the hydrocyclone and checks the sieve hole.

Trouble 5: Unstable Performance

Troubleshooting

• Uneven distribution of materials, the use of the correct distributor;
• Blockage, check for blockage.

Trouble 6: Cannot Reach Cut Point

Troubleshooting

• The feed size is incorrect, replace the feed/hydrocyclone parameters.

Trouble 7: High Wear Rate

Troubleshooting

• The flow rate is too large-the pressure drops too much, change the feeding condition or hydrocyclone parameters;
• 2-stage operation / need large size hydrocyclone, change hydrocyclone parameters;
• The wearability of the incoming material is high, and the manufacturing material should be replaced.

Trouble 8: Unstable Operating Pressure

Troubleshooting

• The pump and the hydrocyclone are unbalanced, isolate the hydrocyclone to achieve a stable operating pressure or reset the pump speed.

Trouble 9: No Fan Flow is Formed.

Troubleshooting

• large coal amount and foaming coal proportion, reduce the carrying coal;
• Unreasonable pressure setting, adjust pump frequency;
• Feed pump opening small, open the valve;

Trouble 10: Underflow With Too Many Materials

Troubleshooting

• Cut off the solid feed and replace it with a large discharge nozzle;
• Check whether the discharge nozzle and feed pipe are blocked.

Trouble 11: Overflow Occurs

Troubleshooting

• The pipeline of the follow-up system is limited or blocked, and the restriction is cancelled.
• Check the angle of the line and the size of the line in the discharge area.