Coal gangue, a byproduct of coal mining and washing, poses significant environmental challenges due to its accumulation and low utilization rate. However, modern crushing and processing technologies have transformed coal gangue from waste into valuable resources, such as construction aggregates, bricks, and raw materials for industrial applications. LIMING Heavy Industry, a leading global manufacturer of crushing and grinding equipment, provides efficient and eco-friendly solutions for gangue recycling, helping industries achieve economic and environmental benefits.
Why Process Coal Gangue?
Environmental Protection – Reduces land occupation and prevents soil and water pollution.
Resource Utilization – Can be repurposed into:
Construction materials (aggregates, cement additives, bricks)
Energy production (coal gangue power generation)
Soil improvement & land reclamation
Economic Value – Lowers raw material costs and generates new revenue streams.
Gangue Crushing & Processing Solutions by LIMING
1. Primary Crushing: Jaw Crusher (C6X Series)
Application: Coarse crushing of large gangue blocks (≤1200mm).
Advantages: High crushing ratio, low energy consumption, durable structure.
2. Secondary Crushing: Impact Crusher (CI5X Series) / Cone Crusher (HPT Series)
CI5X Impact Crusher – Ideal for medium-hard gangue, producing cubic-shaped aggregates.
HPT Cone Crusher – Best for fine crushing with high efficiency and automatic hydraulic adjustment.
3. Fine Grinding: Vertical Mill (LM & LUM Series) / Raymond Mill (5X Series)
LM Vertical Mill: For large-scale gangue powder production (80-400 mesh), widely used in cement additives.
LUM Ultrafine Mill: Produces ultra-fine powder (325-2500 mesh) for high-value applications.
5X Pendulum Roller Mill: Energy-efficient grinding for coal gangue combustion in power plants.
4. Mobile Crushing Solution (K3 Series Mobile Plant)
On-site processing, reducing transportation costs.
Flexible configuration (jaw crusher + impact crusher + screening).
Success Story: Gangue Recycling in China
A coal mining company in Shanxi, China, partnered with LIMING to process 300,000 tons of coal gangue annually. The solution included:
✅ C6X Jaw Crusher (Primary Crushing)
✅ HPT300 Cone Crusher (Intermediate Crushing)
✅ LM190K Vertical Mill (Fine Grinding for brick production)
Results:
✔ Zero waste discharge – Full resource utilization.
✔ 40% cost savings – Compared to traditional disposal methods.
✔ New revenue stream – Selling processed gangue for construction materials.
Why Choose LIMING for Gangue Processing?
30+ Years of Expertise – Reliable crushing & grinding technology.
Customized Solutions – Tailored production lines for different outputs.
Energy-Efficient & Eco-Friendly – Low dust, low noise, and sustainable processing.
Global Service Network – Fast technical support & spare parts supply.
Gangue crushing and recycling is no longer just waste management but a sustainable industrial practice. With LIMING Heavy Industry's advanced crushing, grinding, and mobile solutions, coal gangue can be efficiently transformed into high-value materials, contributing to circular economy and green mining initiatives.
