What this equipment does
Coal blending systems combine material from multiple sources to achieve a target product specification. A system may include reclaim feeders, belt scales, online analyzers, conveyors, stockpile reclaim logic, and control software. Blending is common at mines, ports, power stations, and preparation plants where coal quality varies by seam, pit, or supplier. The main design challenge is controlling variability while maintaining throughput.
At a Glance
- Equipment Type
- Coal blending system
- Material Handled
- Multiple coal grades or stockpile streams
- Capacity Range
- 200–8,000 tph
Common Applications
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Blending Streams | 2–8 or more | |
| Capacity | 200–8,000 | tph |
| Control Inputs | Belt scales, analyzers, lab values | |
| Quality Targets | Ash, sulfur, moisture, CV, size | |
| Control Type | Ratio, feedback, or model-based |
Selection Factors
- Number of feed streams
- Quality parameters to control
- Analyzer and sampling strategy
- Feeder accuracy and turndown
- Stockpile management method
- Control integration with plant DCS
Maintenance and Wear Notes
Blending system reliability depends on feeder calibration, belt scale accuracy, analyzer maintenance, and software logic. Routine calibration of belt scales and cross-checking analyzer results against laboratory data is required.