The Solution Of Raymond Mill Fault Treatment

The Solution Of Raymond Mill Fault Treatment

Raymond Mill frequent failure, performance decline? The detailed explanations and solutions for the eight types of failures are well prepared. Raymond mill has stable performance, convenient operation, low energy consumption, and a wide range of product particle size. It is widely used in many industries. During the operation of Raymond Mill, various failures may occur, resulting in equipment performance degradation and affecting production efficiency. This article shares eight common failure phenomena of Raymond Mill, analysis of the causes, and summary of treatment solutions.

Fault phenomenon:

No flour or less flour

The Reason:

  1. No airlock was installed, causing no suction.
  2. Air locks are not tightly sealed, air leakage, large amounts of air ingress, and dust sucking.
  3. Analyze leaks at the machine and piping soft connections.
  4. The blade head wears too much, resulting in too little scraper or scraping.
  5. Severe air leaks at pipe joints or pipe flange connections.
  6. The installation of pipelines is too long, too high, and there are many elbows, resulting in increased pipeline resistance.
Raymond Mill Fault Treatment Raymond Mill Fault Treatment

Approach:

  1. Install the air locker.
  2. Check the airtight seal.
  3. Reinstall and block the leak.
  4. Check blade wear and replace new blade.
  5. After careful examination, it was found that the leak was immediately blocked.
  6. The piping device should be readjusted and configured according to the general drawing.

Fault phenomenon:

Raymond grinds powder too thick or too fine

the reason:

Inappropriate air flow, or analysis machine speed is not adjusted properly.

Approach:

  1. Adjust the speed of the analyzer.
  2. Product too thick: When adjusting the analyzer can not achieve the desired effect, should be appropriate to close the small blower inlet valve.
  3. Product is too fine: stop the analyzer from turning or remove the analyzer.
  4. Increase the blower speed.

Fault phenomenon:

The main engine stops frequently, the engine temperature rises, and the blower current drops

The Reason:

  1. Too much feed, a large amount of powder inside the host blocked the air duct.
  2. The exhaust is not smooth. The circulating air flow repeatedly generates heat and friction with the wall of the pipe, which causes the wall of the pipe to become wet and binds the powder to the pipe wall. Finally, the pipe is blocked.

Approach:

  1. Remove dust from the air duct and reduce feed.
  2. Open the valve of the residual air duct, the feed moisture should be controlled below 6%.

Fault phenomenon:

The main engine is loud and vibration

the reason:

  1. Raymond mills feed unevenly and feed less.
  2. The center line between the host and the transmission is not straight.
  3. Loose anchor bolts.
  4. Thrust bearings are disengaged when assembled.
  5. During installation, the thrust bearing is lifted upwards due to no clearance in the middle of the coupling.
  6. The material is too hard and the impact is great.
  7. The material is finely powdery, and the friction between the grinding roller and the grinding ring is direct, and there is no material layer in the middle.
  8. Roller deformation out of round.

Approach:

  1. Adjust the amount of feed.
  2. Find the center.
  3. Tighten the anchor bolts.
  4. Check and readjust.
  5. Adjust the coupling clearance as required.
  6. Reduce the feed particle size.
  7. Reduce the spindle speed.
  8. Replace the roller.

Fault phenomenon:

Blower vibration

the reason:

  1. Loose anchor bolts.
  2. Impaired balance due to accumulated powder on the leaves.
  3. Blade wear.

Approach:

  1. Tighten the anchor bolts.
  2. Remove powder from the leaves.
  3. Replace the blades.

Fault phenomenon:

Transmission and analyzer heating

The Reason:

  1. High oil viscosity, screw pump can not play, so that the transmission bearing upper bearing lack of oil.
  2. The analyzer runs counterclockwise, the screw pump can't press the oil, and the upper bearing is short of oil.

Approach:

  1. Check the oil's grade and viscosity.
  2. Check the direction of operation of the analyzer.

Fault phenomenon:

Raymond Mill's roller device into powder

The Reason:

  1. Cut off oil and accelerate bearing wear.
  2. Long-term lack of maintenance and cleaning.

Approach:

  1. Refuel on schedule.
  2. Clean and refuel regularly.

Fault phenomenon:

Manual oil pump out of oil

The Reason:

The oil has been cut off around the piston chamber.

Approach:

The upper grease is pushed around the piston chamber.

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