A coal conveyor system is critical in sand and aggregate production lines, ensuring efficient material transfer between crushing, screening, and storage units. Below is a breakdown of key components and their roles in a typical schematic diagram:
1. Feed Hopper: Receives raw coal or aggregates.
2. Primary Crusher: Reduces large chunks to 50–150mm (e.g., Jaw Crusher, capacity: 50–800 TPH).
3. Belt Conveyor: Transports crushed material (width: 500–1400mm, speed: 1.0–2.5 m/s).
4. Secondary Crusher: Further crushes to 20–50mm (e.g., Impact Crusher, power: 75–400 kW).
5. Vibrating Screen: Separates sizes (mesh: 3–100mm, layers: 1–4).
6. Storage Silo: Holds finished products (capacity: 50–5000 tons).
| Equipment | Parameter | Range |
|---|---|---|
| Jaw Crusher | Feed Size | ≤1500mm |
| Belt Conveyor | Load Capacity | 100–2000 TPH |
| Vibrating Screen | Screening Efficiency | ≥90% |
| Impact Crusher | Output Size | 5–60mm (adjustable) |
Q1: How to reduce coal dust during conveying?
*A: Use enclosed conveyors with dust suppression sprays (water mist or chemical agents).*
Q2: What causes belt misalignment?
*A: Uneven loading or worn rollers—realign idlers and check tension regularly.*
Q3: Optimal crusher for hard granite?
*A: Cone crushers (e.g., hydraulic type with 200–600 kW power) for high abrasion resistance.*
