bord and pillar coal mining

Bord and Pillar Coal Mining: Crushing & Sand Making Solutions

In bord and pillar coal mining operations, efficient crushing and sand-making equipment is crucial for processing overburden and waste rock into reusable aggregates. Our tailored solutions optimize resource utilization while maintaining safety standards.

Core Equipment for Aggregate Production

The typical setup includes:
1. Primary Jaw Crusher (JC5460)
– Feed opening: 1400×1100mm
– Capacity: 800-1000t/h
– Power: 400kW

2. Secondary Cone Crusher (HPC400)
– Max feed size: 315mm
– Capacity: 450-600t/h
– Adjustment range: 6-51mm

3. Tertiary VSI Crusher (VSI1145)
– Throughput: 520-640t/h
– Rotor speed: 1700-1900rpm
– Product shape: Cubic

Key Parameters Comparison

Model Feed Size Output Size Capacity
JC5460 ≤1000mm 150-300mm 800-1000t/h
HPC400 ≤315mm 10-51mm 450-600t/h
VSI1145 ≤50mm 0-5mm sand 520-640t/h

Project Case Study: Australian Coal Mine Application

A Queensland-based operation achieved:
– 95% utilization of waste rock
– Annual production of 1.8M tons aggregates
– Reduced haulage costs by 40%
The complete line processes 1200t/h with ≤3% downtime.

Frequently Asked Questions

Q1: How to handle wet material in crushing?
A: Our cone crushers feature automatic clearing systems to prevent clogging.

Q2: What’s the typical lifespan of wear parts?
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