Coal crushers are used for crushing of high moist coal, etc
What Are Coal Crushers and How Do They Work?
Coal crushers reduce run-of-mine coal to the size required for power plants, cement works or sale. As coal is friable and relatively soft, hammer, roll or impact crushers are usually used.
The aim in coal crushing is to reach the required top size while limiting unnecessary dust (fines); crusher type and setting therefore directly affect product quality.
Applications
- Coal preparation for thermal power plants
- Fuel preparation for cement plants
- Coal washing plants and sizing for sale
- Crushing coke and lignite
Selection Checklist
- Required top size and fines limit
- Moisture of the coal and its shale content
- Enclosed, earthed system against dust and explosion risk
- Capacity and number of stages
Main Spare Parts for Coal Crushers
- Hammers or roll segments
- Grates and breaker plates
- Bearings and shaft assembly
- Gear reducer and belts and pulleys
Frequently Asked Questions
Which crusher suits coal?
Hammer crushers for a fine product, and roll crushers for controlled size with limited dust, are widely used.
Why is safety important in coal crushers?
Coal dust can be flammable and explosive; dust extraction, housekeeping and suitable electrical equipment are essential (health and safety).
Detailed guides: roll crusher, hammer crusher.