The fertilizer mixer is one of the core pieces of equipment in an NPK fertilizer production line. Its operating condition directly affects mixing uniformity and production efficiency. However, during long-term operation, the mixer can develop various faults that disrupt normal production.
1.Abnormal Operation or Excessive Vibration
Causes: Bearings are worn or inadequately lubricated. Mixing blades are unbalanced or damaged. The equipment’s base anchor bolts are loose.
Fixes:
Check bearing lubrication; add lubricant or replace damaged bearings promptly.
Straighten or replace bent or worn mixing blades.
Tighten the anchor bolts to ensure the equipment runs stably.
2.Poor Mixing Uniformity
Causes: Mixing time is too short or rotation speed is too low. Material moisture is too high, causing lumping. Mixing blades are severely worn, reducing efficiency. Feeding ratios are imbalanced, affecting mix uniformity.
Fixes:
Appropriately extend mixing time or increase rotation speed (usually 30-50 rpm is suitable).
Control raw material moisture within 8-12%, adding anti-caking agents if needed.
Regularly check blade wear and repair or replace them promptly.
Adjust feeding ratios to ensure even mixing of all components.
3.Unusual Mixer Noise
Causes: Bearings are damaged or lack oil. Drive gears are worn or the chain is loose.
Fixes:
Replace damaged bearings and add lubricant.
Check gears or chain, replacing them if necessary.
Stable operation of the fertilizer mixer is crucial for NPK fertilizer production. Regular maintenance and timely troubleshooting can effectively extend the equipment’s service life and boost production efficiency.