Project Overview
The China Railway 11th Bureau Group Linzhi to Ya'an Section project provides high-quality aggregates for one of the most challenging railway construction segments in the world. This 1,000 TPH mobile plant processes hard rock in extreme mountain terrain at 3,500-4,500m elevation.
Project Scope
WSHT designed a rugged and reliable crushing system capable of operating in extreme conditions: high altitude, seismic activity, limited road access, and severe winter weather. The modular design allows partial disassembly for transport along narrow mountain roads.
Process Flow
Primary Crushing: Track-mounted C100 jaw crusher (1000×650 mm, 150-300 t/h) processes blasted granite and gneiss. Track mobility allows relocation without crane assistance.
Secondary Crushing: Modular HP300 cone crusher (100-200 t/h) on portable skid frame. Altitude-compensated turbocharger maintains power at 4,000m+.
Screening: Triple-deck vibrating screen (3YK-1860) classifies into railway ballast (25-60 mm), concrete aggregate (5-25 mm), and manufactured sand (0-5 mm). All products meet TB/T 2140 railway standards.
Key Equipment
| Equipment | Specification | Capacity |
|---|---|---|
| Track-Mounted C100 Jaw | 1000×650 mm, 150-300 t/h | Primary (mobile) |
| Modular HP300 Cone | 100-200 t/h, altitude-rated | Secondary |
| 3YK-1860 Screen | Triple-deck, 100-200 t/h | Classification |
| Altitude Compensation | Turbo + ECU recalibration | 4,000m+ power |
| Enclosed Chambers | Dust control at altitude | Environmental |
| Diesel Generators | 2× 1.2 MW, cold-start rated | Power supply |
| Modular Design | Sectional for mountain transport | Logistics |
| PLC Control | Automated, satellite telemetry | Remote monitoring |
Project Highlights
- Capacity: 1,000 TPH (300,000 TPA)
- Altitude: 3,500-4,500m operation
- Quality: TB/T 2140 railway ballast + C50 concrete
- Mobile: Track-mounted primary, modular secondary
- Transport: Sectional design for narrow mountain roads
- Power: Dual 1.2 MW diesel generators
- Timeline: 6 months deployment
- Location: Linzhi to Ya'an, Sichuan-Tibet Railway
