1. Decreased output
Cause: uneven feed particle size, wear of grinding roller and grinding ring, improper fan air volume, etc.
Solution: adjust feed particle size, regularly replace worn parts, and adjust fan air volume.
2. Finished product fineness does not meet the standard
Cause: improper analyzer speed, inappropriate fan air volume, wear of grinding roller and grinding ring, etc.
Solution: adjust analyzer speed and fan air volume, and replace worn parts.
3. Equipment vibration or abnormal sound
Cause: loose anchor bolts, unbalanced grinding roller device, bearing damage, etc.
Solution: tighten bolts, balance grinding roller device, and replace bearings.
4. Bearing temperature is too high
Cause: insufficient lubrication, bearing damage, improper installation, etc.
Solution: lubricate regularly, replace bearings, and ensure correct installation.
5. Excessive main machine current
Cause: too much feed, too hard material, excessive roller pressure, etc.
Solution: Control the feed rate, adjust the material hardness, and adjust the roller pressure.
6. Fan vibration or abnormal sound
Cause: dust accumulation on blades, blade wear, bearing damage, etc.
Solution: Clean the blades, replace worn blades and bearings.
7. Pipeline leakage
Cause: loose pipeline connection, aging of seals, etc.
Solution: Check and tighten the connection, replace the seals.
8. Motor failure
Cause: overload, unstable voltage, aging of motor, etc.
Solution: Avoid overload, ensure stable voltage, and replace aging motors in time.
9. Poor dust removal effect
Cause: dust collector blockage, insufficient fan air volume, etc.
Solution: Clean the dust collector and adjust the fan air volume.
10. Equipment oil leakage
Cause: damaged seals, aging of oil seals, etc.
Solution: Replace seals and oil seals.
Preventive measures
Regularly maintain and inspect equipment.
Replace worn parts in time.
Use the equipment correctly according to the operating manual.
Through the above measures, the failure of Raymond mill can be effectively reduced and the service life can be extended.
