While Cherrapunji (Meghalaya, India) is primarily known for its limestone mining, coal extraction also occurs in the region. To process raw materials into construction-grade aggregates, a robust crushing and sand-making production line is essential.
A typical setup includes:
1. Primary Jaw Crusher (e.g., PE-600×900, capacity 50–160 t/h) – For coarse crushing of mined coal/rock.
2. Secondary Cone Crusher (e.g., HPT300, max. feed size 240mm) – Produces mid-sized aggregates (10–40mm).
3. Tertiary Impact Crusher (e.g., VSI6X1263, 70–585 t/h) – Shapes cubical sand and fine aggregates (<5mm).
4. Vibrating Screens (3–4 decks) – Classifies output into multiple specifications.
| Equipment | Model | Capacity (t/h) | Power (kW) | Output Size |
|——————–|————-|—————-|————|————-|
| Jaw Crusher | PE-750×1060 | 110–320 | 110 | 80–140mm |
| Cone Crusher | HST315 | 215–770 | 315 | ≤38mm |
| Sand Maker | VSI5X1145 | 120–583 | 440 | 0–5mm |
Q1: Can coal waste be repurposed as sand?
Yes, after washing and crushing, coal gangue can replace natural sand in low-grade concrete.
Q2: Dust control measures?
Wet spraying systems + bag filters reduce dust to <20mg/m³ (EPA standards).
A Cherrapunji-based plant processed limestone/coal mix with the above configuration, achieving:
– Output: 200 t/h manufactured sand (FM=2.8).
– Application: Used in local road construction and precast concrete blocks.
