12 kinds of Raymond mill common problems and solutions, efficient production begins!

1, Raymond blower vibration is amazing

cause:

1) The mill blade has too much powder or uneven wear.

2) The grounding bolt is loose.

Solution:

1) Clean up the accumulated powder on the blades or replace the blades.

2) Tighten the anchor bolts.

2, the host vibration is too large, producing noise

cause:

1) The grinding roller does not rotate or the grinding ring is loose.

2) inside the machine into a metal object.

3) Uneven feeding or less feeding.

4) The two halves of the coupling are different axes.

5) The grinding roller wears and the deformation is out of round.

6) Raw materials are too strong or too large.

7) The foundation is not strong.

Solution:

1) Remove and repair the grinding roller device or tighten the grinding ring.

2) Check if there is any metal object falling inside and remove it.

3) Adjust the amount of feed.

4) It is necessary to coordinate the coaxiality of the shaft joint.

5) Check and replace the grinding roller in time.

6) Replace the raw materials.

7) Reinforce the foundation.

3, Raymond can not grind or less powder

cause:

1) The discharge valve (locker) is not closed semi-closed, and the outside air and dust are sucked up.

2) The main air duct is blocked.

3) The blade is worn, causing too little scrap or failing to shovel.

4) There is a serious leak in the pipe and flange joints.

Solution:

1) Repair or seal the discharge valve.

2) Remove the blockage.

3) Check the blade wear and replace the blade.

4) Carefully check that the leak is resealed.

4, the powder is too thick or too fine

cause:

1) The speed of the classifier does not match the graded particle size required for the material.

2) The air volume of the blower is not appropriate.

3) The classifier blade is worn (too thick).

Solution:

1) Adjust the speed of the classifier;

2) If the powder is too thick, when the speed of the classifier is not reached, the blower valve of the small blower can be properly closed; if the powder is too fine, the speed of the classifier can be reduced or the classifier can be removed to increase the speed of the blower. .

3) Blade wear will result in coarse powder and new blades will need to be replaced.

5, the host current rises, the machine temperature rises, the fan current drops

cause:

1) Feeding speed is too fast.

2) The air duct is blocked by the powder and the duct is not exhausted.

Solution:

1) Reduce the amount of feed.

2) Remove the accumulated powder at the air passage or open the large air duct valve, and the temperature of the inlet is controlled to below 6 degrees.

6, the fuel tank and transmission heating

cause:

1) The viscosity of the oil is too thick.

2) The analysis of the machine is not in the right direction.

Solution:

1) Check if the viscosity of the oil meets the requirements.

2) Adjust the running direction of the analyzer.

7, Raymond mill host started slowly

cause:

1) The power distribution is insufficient.

2) The voltage is unstable.

Solution:

1) Check if the motor meets the mill power and replace it for the motor power.

2) Check the power line and set up the voltage regulator.

8, the host grinding room card material

cause:

1) a foreign body from entering iron block.

2) The material is fed too much or the feed is not uniform.

Solution:

1) Check if foreign matter has entered and cleared.

2) Uniform feeding, the hardness of the material is controlled within an appropriate range.

9. Powder leakage at the bottom of the mill

cause:

There is a gap between the mainframe casing and the edge of the disc.

Solution:

Designing the recycling device or blocking the leakage device can also extend the distance between the outer edge of the bed and the outer edge of the plate, or increase the height of the baffle.

10, the mill bearing does not work

cause:

1) Bearing wear is severe.

2) The lubrication effect inside the bearing is poor, and the amount of internal dust is large, causing the lock.

Solution:

1) Replace the new bearing.

2) Clean up the debris in the bearing, add new lubricant after cleaning, and strengthen the bearing seal protection measures.

11, the fan vibration is too large

cause:

1) Powder or wear imbalance on the blades.

2) The anchor bolts are loose.

Solution:

1) Remove the leaf powder or replace the blade.

2) Tighten the anchor bolts.

12, Raymond machine feeding nozzle powder

cause:

1) The valve status of the delivery pipe is abnormal.

2) Too much dust in the bag filter.

Solution:

1) Check all valve status of the delivery pipe and adjust to the correct position.

2) Clean the bag filter and keep the dust removal device unblocked.

When the problem occurs, it is necessary to stop the inspection in time so that the fault can be solved in time to avoid further damage to other components of the Raymond mill due to the problem.

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