Vertical material transportation in coal mines
Reliable and efficient vertical transport is critical in underground coal mining. We provide robust solutions for moving coal, equipment, and personnel between surface and underground levels — optimized for safety, performance, and operational demands.
Main Vertical Material Transportation Systems
Mine Hoists (Shaft Hoisting Systems)
Purpose: Transport coal, personnel, and heavy machinery vertically through dedicated mine shafts.
Types:
- Drum Hoist – Rope winds on a rotating drum. Common in moderate-depth shafts.
- Koepe (Friction) Hoist – Rope runs over a large pulley. Ideal for ultra-deep shafts (>2000 m).
Applications:
Backbone of deep underground coal mines, with high control systems and braking mechanisms.
Steep-Angle Belt Conveyors
Used in inclined shafts or drift mines, where a full vertical lift isn’t required.
Types:
- Flexowell Belt Conveyors
- Pocket Belt Systems
Advantages
- Compact, continuous transport with minimal operator involvement.
- Enables compact, continuous transport with minimal operator involvement.
Vertical Screw Conveyors
Use Case: Short-distance vertical lifting of fine coal or dust in surface plants or processing areas.
Limitations: Low throughput; not suitable for bulk haulage.
Purpose:To lift fine or powdered materials vertically over short distances in a controlled manner.
Advantages:
- Compact design suitable for tight spaces.
- Enclosed system reduces dust and spillage
Pneumatic Systems (Occasional Use)
Primarily for fine particles or coal dust, especially in surface transfer operations. Rarely used in underground haulage.
Purpose:
To convey fine, dry bulk materials like coal dust, cement, or fly ash through pipelines using air pressure.
Advantages:
- Minimal dust generation, ensuring cleaner handling.
- Flexible routing with enclosed pipelines, reducing spillage.
Cage and Skip Systems
Often integrated with hoists:
- Cage: Transports personnel and smaller equipment.
- Skip: Used exclusively for bulk coal transfer.
Advantages:
- High-capacity transport for both materials and personnel.
- Reliable and fast movement in deep mining shafts.
System Comparison Table
| System Type | Load Type | Max Height | Best For |
|---|---|---|---|
| Drum Hoist | Coal, people | ~1500 m | General deep-shaft operations |
| Koepe Hoist | Skips | >2000 m | Ultra-deep mines |
| Cage & Skip | Tools / Coal | High | Multi-use vertical shafts |
| Steep-Angle Conveyor | Crushed coal | ~500 m | Inclined shafts |
| Screw Conveyor | Fine coal / dust | ~10 m | Local plant use |
Engineered for Extreme Underground Safety
Flame-Retardant Materials
Explosion-Proof Electrical Systems
Low-Maintenance Design
Emergency Evacuation Support for Personnel
Why Choose Our Systems?
Proven performance in high-risk mining environments
Scalable designs for varied shaft depths and capacities
Designed for worker safety and operational uptime