Industrial Crusher Safety Operation and Maintenance Procedures

Industrial Crusher Safety Operation and Maintenance Procedures

I. Purpose

Establish safety operation and maintenance procedures for industrial crushers, enabling operators to properly operate and maintain the equipment.

II. Operating Procedures

1. Pre-Operation Preparations

1. Before operation, open the crushing chamber and check whether there are foreign objects or jamming, especially check whether the teeth on the moving tooth disc are loose.
2. Check whether the parts of the equipment in contact with materials meet the corresponding cleanliness requirements.
3. Check all parts of the equipment for looseness; tighten any loose parts found.
4. Only close the door when there are no abnormal conditions, and lock it with the top screw.
5. Check whether the beating action of the dust collection bag in the dust suction box is effective.
6. Inspect the materials to be crushed; no foreign objects such as metal shall be mixed in to avoid accidents.
7. Finally, check other parts of the equipment for abnormalities; only start the machine when no abnormalities are found.

2. Startup

1. Press the button to start the equipment.
2. When crushing materials, the machine must be started without load. Gradually add materials only after the machine runs normally. Do not add materials before starting the machine.
3. Do not add too much material; overloading may cause the motor to burn out. The feeding amount can be referenced from the ammeter; do not operate beyond the rated load. Feeding should be uniform.
4. Always observe whether the machine has any abnormal sounds. If abnormal sounds occur, stop the machine immediately, inspect and troubleshoot before restarting.

3. Shutdown

1. Before stopping the machine, first stop feeding. After the materials in the crushing chamber are completely crushed and discharged, the power can be cut off.
2. Turn off the power.

4. Post-Operation Work

1. Beat the dust collection bag again and dispose of the dust in the collection tray.
2. Thoroughly clean the machine, disassemble parts such as screens and bags, and wash and dry them. The crushing chamber may be rinsed if necessary, but be careful that water does not splash into electrical components and bearings.
3. Clean the dust collection room and the exterior of the machine, clean the production site, and restore to standby condition.

III. Maintenance and Repair

Minor Repair

1. Check lubrication of all rotating parts and tighten bolts at all locations.
2. Replace the sealing ring of the crushing chamber door.
3. Adjust the tension of the transmission belt.
4. Inspect the beating mechanism in the dust collection room and replace the collection bag.
5. Troubleshoot any faults that occur.

Major Repair

1. Includes all minor repair content.
2. Clean and repair the moving tooth disc and stationary tooth disc.
3. Clean and repair the main transmission mechanism, including belt drive, bearing housing, sealing rings, etc.
4. Clean and repair the beating mechanism in the dust collection room and the entire dust collection pipeline.
5. Inspect and repair the crushing motor and dust collection motor.
6. Inspect and repair the electrical control circuits.
7. Assemble, debug, and test-run.

IV. Repair Quality Standards

1. After installation of each rolling bearing, ensure that the radial runout of each shaft end face is no greater than 0.03mm.
2. After pulley installation, ensure that the radial runout of the pulley end face is no greater than 0.5mm.
3. After transmission belt installation, ensure that when a force of 1.48kg is applied at the midpoint between the two shafts, the deflection produced is less than 0.8mm.
4. Overall machine noise shall not exceed 80dB(A).
5. Crushing yield rate should be 80% or higher.