1. Rock Wool Centrifuge (Core Unit) – Common Faults
1.1 Overheating Bearings
Possible Causes:
Insufficient lubrication or degraded grease
Inadequate cooling water supply
Bearing wear or damage
Overloading
Corrective Actions:
Replenish high-temperature grease
Check and restore cooling water flow
Replace bearings if necessary
Reduce operating load
1.2 Excessive Vibration or Abnormal Noise
Possible Causes:
Imbalance of rollers
Fiber buildup inside the chamber
Loose fasteners
Bearing failure
Corrective Actions:
Remove accumulated material
Tighten bolts and fasteners
Rebalance rollers
Replace damaged bearings
1.3 Rollers Not Rotating or Unstable Speed
Possible Causes:
Belt slippage
Motor malfunction
Material blockage
Coupling damage
Corrective Actions:
Adjust belt tension
Inspect and repair motor
Clear blockages
Replace coupling
1.4 Poor Fiber Formation / Excess Shot (Unfiberized Particles)
Possible Causes:
Mismatch in roller speeds
Low melt temperature
Abnormal binder spraying or airflow
Worn rollers
Corrective Actions:
Adjust rotational speeds
Increase melt temperature
Clean spray nozzles and check airflow
Repair or replace rollers
2. Cooling Water System Faults
2.1 Low Water Pressure / Loss of Water Supply
Possible Causes:
Clogged filters
Pump failure
Pipeline leakage
Closed valves
Corrective Actions:
Clean filters
Repair or replace pump
Fix leaks
Open and adjust valves
2.2 Localized Overheating
Possible Causes:
Blocked water channels
Scale buildup
Uneven water distribution
Corrective Actions:
Perform chemical descaling
Clear pipelines
Adjust distribution valves
3. Binder Spray / Atomization System Faults
3.1 No Spray / Intermittent Binder Supply
Possible Causes:
Blocked nozzles
Low pump pressure
Air leakage in hoses
Excessive binder viscosity
Corrective Actions:
Clean or replace nozzles
Adjust pump pressure
Check seals and connections
Dilute binder to proper viscosity
3.2 Dripping, Leakage, or Poor Atomization
Possible Causes:
Worn or aged seals
Unstable air pressure
Nozzle wear
Corrective Actions:
Replace sealing components
Stabilize air pressure
Replace worn nozzles