A robust crushing and sand-making production line is essential for processing coal mining waste into high-quality sand and aggregates. This system typically includes jaw crushers, impact crushers, cone crushers, vibrating screens, and sand makers. Below is a breakdown of key equipment and their roles:
1. Primary Jaw Crusher
– Model: PE600×900
– Feed Size: ≤500mm
– Capacity: 50–160 t/h
– Power: 55–75 kW
2. Secondary Cone Crusher
– Model: HPT300
– Max Feed Size: 240mm
– Capacity: 120–400 t/h
– Power: 315 kW
3. Vertical Shaft Impact Crusher (Sand Maker)
– Model: VSI6X1150
– Output Size: 0–5mm (adjustable)
– Capacity: 200–500 t/h
– Power: 440 kW
4. Vibrating Screen
– Model: 3YK3070
– Screen Layers: 3
– Processing Capacity: 100–600 t/h
Raw coal waste is first crushed by the jaw crusher, then conveyed to the cone crusher for secondary crushing. After screening, oversized materials are recirculated, while qualified aggregates are sent to the sand maker for fine shaping. The final products meet ASTM/C33 standards for construction use.
Q1: What’s the lifespan of wear parts in the VSI crusher?
A: Tungsten carbide tips last ~200 hours; rotor lifespan exceeds 10,000 hours with proper maintenance.
Q2: Can this line process wet coal waste?
A: Yes, but a dewatering screen or log washer is recommended for high-moisture materials.
Project: Inner Mongolia Coal Waste Recycling Plant (2023)
Solution: Deployed PE600×900 + HPT300 + VSI6X1150 with a 3YK3070 screen. Achieved 350 t/h output of 0–5mm sand for local road construction
