The coal pulverizing and feeding system is a critical component in thermal power plants and industrial boiler operations. It grinds raw coal into fine powder (<200 mesh) to ensure efficient combustion. Key equipment includes coal crushers, pulverizers, feeders, and pneumatic conveying systems.
| Equipment | Model | Capacity (t/h) | Power (kW) |
|---|---|---|---|
| Coal Crusher | PCΦ800×600 | 15-30 | 55 |
| Vertical Pulverizer | LM1700M | 10-40 | 250-315 |
| Screw Feeder | SFL500 | 5-20 | 7.5 |
| Airlock Feeder | TGF-200 | 10-50 | 4.0 |
1. Raw coal is crushed to ≤30mm particles.
2. Pulverizers grind coal into micron-sized powder.
3. Feeders regulate coal flow into burners via pneumatic pipelines.
Q: How to prevent pulverizer explosions?
A: Install CO₂ inerting systems and maintain O₂ levels below 12%.
Q: What’s the typical coal moisture limit?
A: Optimal moisture is ≤15%; higher values require pre-drying.
A 600MW power plant in Java adopted our LM190M vertical pulverizers (40t/h each) with automatic feeding controls, achieving 98% combustion efficiency and reducing unburned carbon to <5%.
