The reuse of industrial solid waste is an important component of building a circular economy. By realizing the reduction, reuse, and recycling of resources, we can reduce reliance on primary resources, mitigate environmental pollution, and promote the sustainable development of the economy and society. For instance, slag and steel slag, after being processed into powder, can be used in fields such as construction, cement production, and road repair.



Compared with traditional stacking, which pollutes the environment, powder grinding technology may have lower processing costs, and solid waste products after grinding often have higher market value. Take slag and steel slag as examples—after powder grinding treatment, they can be applied in construction, cement manufacturing, and road restoration, among other areas.

The slag and sand powder production line designed and built by SBM has been successfully put into operation. This production line adopts SBM's flagship product—the LM Series Slag Vertical Mill—to handle industrial solid waste, and the finished powder is supplied to concrete mixing plants.

Project Overview
Processed Materials: Slag, Sand
Finished Product Particle Size: 325 Mesh
Application: Concrete Admixture
Equipment: LM Series Slag Vertical Mill



As the core equipment in the slag grinding production process, the LM Series Slag Vertical Mill developed by SBM integrates crushing, grinding, drying, powder separation, and conveying functions. It ensures the continuity and stability of slag powder production and improves the efficiency of slag grinding.

Highlights of Slag Vertical Mill



Leading Technology with Low Investment Cost
Integrating crushing, grinding, drying, powder separation, and conveying functions in one unit, it can directly access hot air. With a compact layout and the ability for open-air installation, the investment cost is significantly reduced.

High Grinding Efficiency & Excellent Product Quality
Featuring a special roller and grinding disc structure design, the grinding rollers are equipped with a hydraulic automatic pressure device, providing a larger grinding area and high grinding efficiency. The finished powder has a uniform particle size distribution, excellent quality, and high activity.

Reliable Quality & Stable Operation
The transmission system adopts an advanced planetary gear reducer, ensuring strong load-bearing capacity and stable operation. The grinding rollers are equipped with a hydraulic pressure system and a limit device to prevent direct contact between the rollers and the disc, resulting in low vibration. It also has an automatic slag discharge function to ensure the safe operation of the equipment.

Large Drying Capacity & Wide Adaptability
The inlet air temperature can be controlled according to the moisture requirements of the finished powder for different applications and the moisture content of raw materials. By using hot air to convey materials, it can meet production conditions even when the moisture content of incoming materials is ≤15%, offering wide adaptability and making it the preferred choice for bentonite powder preparation.

High Degree of Automation
Adopting an automatic control system, it enables remote operation, interlocking protection, reliable operation, and simple operation. This reduces the workload of staff and improves work efficiency.



In this cooperation, the customer highly praised SBM strength. Relying on its high-end grinding technology and rich experience, SBM will assist the enterprise in building an environmentally friendly and sustainable benchmark project for slag micro-powder preparation, contributing solid strength to the green transformation and sustainable development of the regional economy.

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