1. Emergency Shutdown and Safety Measures
Immediately shut down the machine by powering off.
Immediately shut down the machine and close the feed valve upon detecting a blockage to prevent further accumulation of material.
Use an ammeter, a grinding noise sensor (electric ear), or vibration detection to determine the location of the blockage (e.g., feed inlet, baffle plate, or discharge outlet).
2. Targeted Cleaning Methods
1. Feed/Discharge Inlet Blockage
Use a high-pressure water jet or specialized tools (e.g., a steel chisel or hooked steel bar) to remove the blocked material.
If the blockage is caused by scrap metal, stop the mill and clean it section by section, working from the feed side toward the discharge side.
2. Baffle Plate Blockage
Reduce or stop feeding, allowing the material to fall out naturally. If the baffle plate has not been cleaned for an extended period, clean it thoroughly.
Check the grate opening ratio to optimize material flowability.
3. Drying Bin Blockage
Increase the grinding head air temperature and increase system ventilation. If this is ineffective, stop the mill and perform maintenance. III. Restoration and Verification
1. Restarting the Process
After cleaning, conduct a 5-minute no-load test run to confirm that there are no abnormalities before gradually increasing the feed rate.
Monitor current, vibration, and temperature to ensure stable operation.
2. Preventive Measures
Control feed moisture (≤15% for wet process) and install an iron remover.
Regularly check the lubrication system and liner condition to prevent wear and increased clogging.
