Common faults and solutions for rod mills

Let me talk about some of the problems and solutions that the rod mill often encounters during the grinding process, so as to avoid stopping the operation due to some minor faults during the operation.

First, "the main bearing is hot, there is abnormal sound, the motor is overloaded and power off", the reason may be because: 1. poor lubrication 2. the main bearing enters the sediment 3. the bearing is broken 4. the main bearing is not installed correctly 5. the ore amount Too much or insufficient, the solution is: 1. Add grease 2. Clean the bearing to replace the grease 3. Replace the bearing to adjust the amount of minerals.

Second, "the motor power supply of the rod mill is unstable or too high", the reason may be: 1. loosening of the feeder 2. poor lubrication of the main bearing 3. excessive concentration of the ore discharge 5. weight of the liner around the cylinder Unbalanced or uneven wear 6. Excessive wear of the gear 7. The motor circuit is faulty. The solutions are as follows: 1. Tightening the feeder to improve the lubrication condition 2. Adjusting the operation to replace the liner 3 Replace the repair gear 4. Eliminate electrical faults.

Third, "the rod mill has vibration phenomenon", the reason may be: 1. The gear is not well fitted or worn too much 2 feet screw or bearing screw loose 3. Large gear connection screw or loose bolt loose 4. Transmission The bearing wears too much. The solutions are as follows: 1. Adjust the gear clearance 2. Tighten the loose bolt 3. Replace the transmission bearing.

Fourth, "the rod mill occasionally suddenly has strong vibration and impact sound", the reason may be because: 1. The foreign gear is mixed between the large and small gears. 2. The small gear is loose. 3. The gear is broken. The 4 bearing or the fixed screw on the foundation is loose. The solution is: 1. Eliminate foreign objects 2. Replace gears 3. Tighten the bolts.

5. “There is a slurry leakage between the end cap and the barrel. The reason may be: 1. The connecting bolt is loose. The pin is too long 2. The lining screw is loose. The gasket is worn or the screw is broken. The solution is: Tighten and replace the bolts. Tighten the locating pins to replace the seals.

Sixth, "The motor is overloaded or unable to start when the mill is started", the reason may be: there is no disc grinding at the start, the solution is: start after grinding.

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