What this equipment does
Coal conveyor systems are the primary means of moving bulk coal between extraction, preparation, storage, and load-out points. A coal conveyor system is sized around belt width, belt speed, lift, and the bulk density of the conveyed material. Underground conveyor systems are designed around fire-resistant belt, gas-rated drives, and tight clearance constraints; surface and plant conveyors prioritize long centers, high capacity, and weather protection. The conveyor system also includes idlers, drives, take-ups, transfer chutes, belt cleaning, and protection devices that together determine availability and maintenance cost.
- Equipment Type
- Belt conveyor system
- Material Handled
- Raw coal, washed coal, middlings, rejects, coal fines
- Capacity Range
- 200–6,000 tph
Common Applications
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Belt Width | 800–2,200 | mm |
| Belt Speed | 1.6–5.0 | m/s |
| Capacity | 200–6,000 | tph |
| Lift | up to ±18° | |
| Drive Type | Direct, fluid coupling, or variable speed | |
| Belt Construction | Steel cord or fabric, fire-resistant grades for underground |
Selection Factors
- Belt width and speed against required capacity and lump size
- Lift profile and horizontal centers
- Belt construction (steel cord vs fabric) and tension class
- Drive arrangement and starting torque
- Belt cleaning, sealing, and dust control at transfer points
- Fire-resistance rating for underground applications
Maintenance and Wear Notes
Routine maintenance focuses on belt tracking, idler condition, transfer-point spillage, belt cleaner adjustment, and drive lubrication. Worn idlers and misaligned belts are the most common causes of unplanned downtime; condition-based monitoring of motor current and bearing temperature reduces failure rates.