Integrated Solution for Coal Gangue Sorting, Treatment, and Resource Utilization

OreSolution Coal Gangue Beneficiation Plant. Recovers Pyrite (＞90%) via Jigging. Converts waste to building materials. Zero landfill solution.

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Integrated Solution for Coal Gangue Sorting, Treatment, and Resource Utilization turns mining waste into profit.

Coal gangue contains valuable Pyrite (Sulfur Iron Ore) and residual coal. Our solution uses a "Crushing - Jigging - Flotation" process to recover these resources (Recovery > 90%). The remaining waste is processed into bricks or cement, achieving 100% solid waste utilization.

What Is Coal Gangue Treatment?

Coal Gangue Treatment is the process of extracting value from coal washing waste. Pyrite (Specific Gravity ~5.0) is much heavier than coal/gangue (~2.0), making Gravity Separation (Jigging) the ideal method for recovery. For fine particles or high-coal content gangue, Flotation is used. The final inert tailings are used for building materials.

Coal Gangue Processing Plant

Sorting Process Steps

Step 1: Crushing & Screening

Goal: Liberate Pyrite from gangue matrix.

Crushing: Jaw Crusher / Hammer Crusher reduces lumps.
Screening: Trommel Screen classifies feed into:
- Coarse (+30mm): Manual picking or re-crushing.
- Medium (8-30mm): Sent to Large Particle Jig.
- Fine (0-8mm): Sent to Fine Particle Jig.

Coal Gangue Screening

Step 2: Gravity Separation (Core Recovery)

Goal: Recover heavy Pyrite concentrate.

Equipment: Jig Machine. Using water pulsation, heavy Pyrite sinks while light coal/gangue floats.
Performance: Recovery rate > 90%, Concentrate grade > 35% Sulfur.
Advantage: Low cost, no chemicals, high capacity.

Gangue Jigging Machine

Step 3: Flotation (Optional)

Goal: Recover fine coal or fine pyrite.

For complex ores, Flotation is added to recover fine-grained valuable minerals that gravity separation misses.

Step 4: Resource Utilization (Zero Waste)

Fuel: Residual coal used for power generation.
Building Materials: Tailings used for bricks, cement, road base.
Backfill: Used for mine reclamation.

Recycled Gangue Bricks

Configuration Selection Guide

Scheme	Target	Key Process
Scheme A (Recovery)	Extract Pyrite/Coal	Crushing + Jigging + Dewatering.
Scheme B (Comprehensive)	Zero Waste	Scheme A + Brick/Cement Production Line.

Core Equipment Configuration

System	Main Equipment	Function
Crushing	Jaw/Hammer Crusher	Size reduction.
Screening	Trommel Screen	Classification (0-8, 8-30mm).
Sorting	Jig Machine	Gravity separation of Pyrite.
Dewatering	Dewatering Screen	Product drying.

Frequently Asked Questions (FAQ)

Q1: Why recover Pyrite from gangue?

A: Pyrite (Sulfur Iron Ore) is a valuable raw material for sulfuric acid production. Recovering it provides economic revenue and prevents "Acid Mine Drainage" pollution caused by sulfur oxidation in waste piles.

Q2: What is the ROI period?

A: Due to the low cost of gravity separation and the saleable value of Pyrite concentrate, the payback period is typically less than 1 year.

Q3: Is the process water-intensive?

A: Jigging requires water, but we design closed-loop water circulation systems with sedimentation tanks, achieving >90% water recycling, making it environmentally friendly.

Transform Coal Gangue into Value

We offer full solutions: Ore Testing, Process Design, and Equipment Manufacturing.
Contact us for a customized proposal and ROI analysis.

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