Amid the national trends of the "Dual Carbon" strategy and "Zero-Waste City" construction, the value of coal gangue—a "black burden" accounting for nearly 1/5 of the total industrial solid waste—is being re-evaluated. Through in-depth calcination processing, it can be converted into kaolin, which becomes an indispensable high-quality raw material for high-end manufacturing industries such as refractory materials, glass fibers, and high-grade ceramics, with a market potential of tens of billions of yuan.
The key link in turning coal gangue into treasure lies in an efficient, energy-saving, and stable grinding process. As a global provider of grinding equipment and solutions, SBM has joined hands with its Inner Mongolia customer to build a coal gangue powder-making project, which has become an industry benchmark for circular economy and green intelligent manufacturing.
Value Reconstruction: Turning Coal Gangue from "Waste" to "Treasure"
A customer in Inner Mongolia is an innovative enterprise engaged in solid waste resource utilization. For its strategic development, it needed to build a modern production line for calcined kaolin locally, with the core prerequisite of obtaining stable, efficient and environmentally compliant coal gangue raw material powder. At the beginning of the project, the customer conducted extensive market research and multiple rounds of supplier screening.
SBM won the customer's trust with its customized vertical mill technical solutions, detailed wear part service life commitments, and numerous successful grinding cases. After an on-site inspection and in-depth communication, the customer's technical team stated: "SBM solution not only solves our current equipment selection problem but also demonstrates a deep understanding of the entire process chain. We have great confidence in long-term stable production."
Production Material: Coal Gangue
Fineness: 80 Mesh
Application: Calcined Kaolin
Equipment: LM Vertical Roller Mill
The "heterogeneous, high-hardness, and difficult-to-grind" characteristics of coal gangue place extremely high demands on grinding equipment. Relying on its years of technical accumulation in the grinding field, SBM has made breakthroughs in aspects such as material adaptation, fineness control, and energy consumption optimization, and tailored a technical solution for the project.
With the LM Vertical Roller Mill as the main equipment of the project, reasonable grinding pressure is set, the internal air duct structure and air speed are optimized, and a high-efficiency dynamic classifier is equipped. This ensures that the finished product fineness is stably maintained at 80 mesh, meeting the high-quality requirements of calcined kaolin for raw material powder.
The key link in turning coal gangue into treasure lies in an efficient, energy-saving, and stable grinding process. As a global provider of grinding equipment and solutions, SBM has joined hands with its Inner Mongolia customer to build a coal gangue powder-making project, which has become an industry benchmark for circular economy and green intelligent manufacturing.
Value Reconstruction: Turning Coal Gangue from "Waste" to "Treasure"
A customer in Inner Mongolia is an innovative enterprise engaged in solid waste resource utilization. For its strategic development, it needed to build a modern production line for calcined kaolin locally, with the core prerequisite of obtaining stable, efficient and environmentally compliant coal gangue raw material powder. At the beginning of the project, the customer conducted extensive market research and multiple rounds of supplier screening.
SBM won the customer's trust with its customized vertical mill technical solutions, detailed wear part service life commitments, and numerous successful grinding cases. After an on-site inspection and in-depth communication, the customer's technical team stated: "SBM solution not only solves our current equipment selection problem but also demonstrates a deep understanding of the entire process chain. We have great confidence in long-term stable production."
Production Material: Coal Gangue
Fineness: 80 Mesh
Application: Calcined Kaolin
Equipment: LM Vertical Roller Mill
The "heterogeneous, high-hardness, and difficult-to-grind" characteristics of coal gangue place extremely high demands on grinding equipment. Relying on its years of technical accumulation in the grinding field, SBM has made breakthroughs in aspects such as material adaptation, fineness control, and energy consumption optimization, and tailored a technical solution for the project.
With the LM Vertical Roller Mill as the main equipment of the project, reasonable grinding pressure is set, the internal air duct structure and air speed are optimized, and a high-efficiency dynamic classifier is equipped. This ensures that the finished product fineness is stably maintained at 80 mesh, meeting the high-quality requirements of calcined kaolin for raw material powder.
- The integrated structure supports open-air layout, featuring small floor space and low investment costs.
- Hot air is used for material conveying, which can dry materials with an incoming moisture content of up to 15%, resulting in a moisture content of less than 1% for materials leaving the mill.
- The unique structural design of the grinding roller and grinding disc, combined with a hydraulic automatic pressure device, improves grinding efficiency.
- Equipped with an automatic control system, it enables simple and flexible operation, reducing operation and maintenance costs.
- The entire system is fully sealed and operates under negative pressure, with no dust overflow.
SBM's services go beyond equipment delivery; it also provides full-life-cycle support for projects. From pre-sales on-site inspections, to in-sales installation guidance and systematic training for operators, and then to post-sales establishment of a rapid-response service mechanism and a complete spare parts supply system, it safeguards customers' production and operation and creates sustained and stable long-term value.
The successful implementation of SBM's coal gangue vertical mill project in Inner Mongolia is not only a practice of solid waste resource utilization, but also innovatively builds a circular economy industrial chain of "coal gangue - kaolin - high-end materials". It achieves a win-win situation of economic and ecological benefits, and provides a replicable SBM solution for the green transformation of the global coal industry.
In the future, SBM will continue to deepen its focus on grinding technology and create efficient, energy-saving and environmentally friendly resource utilization solutions for customers in more industries.
The successful implementation of SBM's coal gangue vertical mill project in Inner Mongolia is not only a practice of solid waste resource utilization, but also innovatively builds a circular economy industrial chain of "coal gangue - kaolin - high-end materials". It achieves a win-win situation of economic and ecological benefits, and provides a replicable SBM solution for the green transformation of the global coal industry.
In the future, SBM will continue to deepen its focus on grinding technology and create efficient, energy-saving and environmentally friendly resource utilization solutions for customers in more industries.
