Cost reduction and efficiency improvement | Liming Heavy Industry's Vertical Mill creates a high-value utilization solution for slag

With the deepening of ecological civilization construction, the National Development and Reform Commission and ten other ministries have introduced a series of policies for industrial solid waste management, clearly requiring the enhancement of comprehensive utilization levels of solid waste. Against this backdrop, related research has focused on applications across multiple fields, exploring technological pathways to transform solid waste such as slag into high value-added products through grinding and processing.

Enhancing the comprehensive utilization of slag

Liming Heavy Industry leverages advanced grinding technology and continuous innovation capabilities to achieve efficient secondary recycling of industrial slag. This not only provides a green pathway for slag treatment but also effectively alleviates the pressure of mineral resource depletion, supporting the low-carbon transformation and sustainable development in the industrial sector.

Production line for converting slag into high value-added products

The slag preparation production line constructed by Liming Heavy Industry is based on the client's adherence to high specifications and strict requirements. After thorough technical research and multiple rounds of proposal negotiations, Liming Heavy Industry stood out among numerous bidding units with its high-tech, cost-effective solutions and environmentally friendly concepts, ultimately winning the bid for the project.

The main equipment used in the entire grinding production line of the slag project, constructed by Liming Heavy Industry, is the LM vertical roller mill. Liming Heavy Industry tailored its approach to local conditions and coordinated the design and construction effectively. The entire production line is scientifically designed, compactly arranged, and environmentally friendly, truly allowing customers to enjoy the economic benefits brought by the new equipment and technologies that are efficient and energy-saving, receiving unanimous praise from clients.

Process flow of Slag preparation project

The slag raw material is delivered from the hopper and measured by a quantitative feeder, then transported via a belt conveyor to the elevator. During the transportation process, the slag raw material passes through a de-ironing device and a vibrating screen for de-ironing and screening. It is then fed into the LM vertical mill for grinding through locking feeding equipment and other conveying devices. The ground slag powder is classified by a powder separator. The slag powder that meets the fineness requirements is collected by a dust collector and finally stored in the finished product warehouse via an air transport chute and elevator.

Core Advantages of LM Vertical Roller Mill

1. Leading technology with low investment costs

Integrating crushing, grinding, drying, powder selection, and transportation into one system, with a compact layout that can be arranged outdoors, significantly reducing investment expenses.

2. High grinding efficiency and good product quality

The special design of the grinding roller and grinding table structure ensures high grinding efficiency; the finished product has a uniform particle size distribution and good quality.

3. Reliable quality and stable operation

The grinding roller is equipped with a limit device to prevent direct contact with the grinding table, resulting in low vibration; it also has an automatic slag discharge function to ensure safe operation of the equipment.

4. Large drying capacity and wide adaptability

Hot air can be used to transport materials, drying materials with moisture content up to 15% before grinding, with a moisture content of less than 1% after grinding, making it suitable for a wide range of applications.

5. High degree of automation

The automatic control system is used, enabling remote operation, interlocking protection, reliable operation, and easy handling.

6. Convenient maintenance and low operating costs

The grinding roller uses forced thin oil lubrication and is equipped with a hydraulic roller turning device, allowing the grinding roller to be turned out of the machine for maintenance without disassembly, making it quick and easy.

With the implementation of more slag resource utilization projects, Liming Heavy Industry will continue to empower the circular economy through technological iteration, helping the industrial sector break the bottleneck of resource dependence. While protecting the green mountains and clear waters, we aim to ensure that every piece of solid waste finds its value in recycling and regeneration, allowing the concept of green and low-carbon development to take root and grow within industrial civilization.