The steel industry is a pillar industry related to a country’s national economy and people’s livelihood, and is also one of the industries that emits the largest amount of solid waste. Steel slag is one of the solid wastes discharged during the steelmaking process. It is the oxide generated after the oxidation of various elements in the metal charge, the eroded furnace lining and repairing materials, the impurities brought by the metal charge, and the adjustment of steel slag. Slagging materials specially added due to their properties, such as limestone, dolomite, iron ore, silica, etc. Grinding mills are specially used for grinding and processing non-metallic minerals. HCM Machinery is a leader in the field of producing mill equipment. The equipment has reliable performance and perfect after-sales, and is well received by the market.

The emission of steel slag is about 15% to 20% of steel production. The accumulated steel slag in my country has exceeded 100 million tons, and the amount of slag discharge is increasing by 20 million tons every year. Compared with the terrifying amount of slag discharge, my country’s utilization rate of steel slag is low, and the overall utilization level is not high. Without effective treatment and resource utilization, steel slag will occupy more cultivated land, destroy the ecological balance, pollute the environment, cause a waste of resources, and affect the sustainable development of the steel industry. The rational utilization and effective recycling of steel slag is one of the important symbols of technological progress in the modern steel industry. It is an important measure for steel companies to solve the shortage of scrap steel, reduce production costs, and improve economic benefits. It is also an important measure for protecting the environment, reducing pollution, and turning harm into benefit. , a good strategy to turn waste into treasure and benefit the country and the people. Therefore, the reduction, resource utilization and high-value utilization of steel slag have become important research topics at home and abroad.

Grinding mill manufacturer HCM Machinery has developed the HLM series vertical grinding mill after more than 20 years of research and development. It adopts a reasonable and reliable structural design, combined with advanced technological processes, and integrates drying, grinding, grading and transportation into one highly efficient machine. Energy-saving advanced grinding equipment, especially in the steel slag grinding process, has unique advantages:

1. High efficiency and energy saving:

(1) High grinding efficiency and low energy consumption. Compared with ball mills, energy consumption is 40%-50% lower;

(2) A single machine has a large production capacity and can utilize low-peak electricity;

(3) Vertical mill technology and equipment is a new energy-saving and consumption-reducing technology strongly advocated by the country, which is conducive to improving the competitiveness of enterprises in the region and even the national powder industry;

1. Easy maintenance and low operating costs:

(1) The grinding roller can be turned out of the machine with a hydraulic device. There is a large space for replacing the roller sleeve lining and mill maintenance, making maintenance operations very convenient;

(2) The grinding roller sleeve can be turned over for use, extending the service life of the wear-resistant material;

(3) There is no need to put cloth on the grinding plate before starting up, and the mill can be started without load, eliminating the trouble of difficult startup;

(4) Low wear, the grinding roller and grinding disc lining are made of special materials and have a long service life;

(5) High degree of automation: The automatic control technology adopts German Siemens series PLC, equipped with an automatic control system, which can realize remote control and easy operation. The workshop can basically realize unmanned operation, saving operating costs.

3. Low overall investment cost: It integrates crushing, drying, grinding and conveying, with simple process flow, less system equipment, compact structural layout, small footprint, only 50% of the ball mill, can be arranged in the open air, and low construction cost , directly reducing corporate investment costs;

4. Stable product quality:

(1) The material stays in the mill for a short time, making it easy to detect product particle size distribution and ingredients, and the product quality is stable;

(2) The product has uniform particle shape, narrow particle size distribution, good fluidity, and strong product adaptability;

5. High reliability:

(1) Use the grinding roller limit device to avoid severe vibrations caused by material interruption during the working hours of the mill.

(2) The new grinding roller sealing device is adopted, the sealing is more reliable, and no sealing fan is needed, further reducing the oxygen content in the grinding mill, and the explosion suppression performance is even better.

6. Environmental protection:

(1) The entire system of HLM vertical mill has small vibration and low noise;

(2) The system is fully sealed, operates under full negative pressure, and has no dust spillage, making it basically possible to achieve a dust-free workshop;

According to our company’s existing grinding equipment, vertical mills, ultra-fine vertical mills, etc. can be used to grind steel slag. The production company can ensure the supply of steel slag based on the annual steel slag emissions or the local and surrounding markets. The annual demand for steel slag micron powder determines the reasonable production process and scale. For more details, contact email:hcmkt@hcmilling.com