Slag is the by-product of the blast furnace ironmaking process. In the ironmaking process, iron oxide is reduced to metallic iron at high temperatures. Impurities such as silica and alumina in the iron ore react with lime to form a melt with silicate and aluminosilicate as the main components. After being quenched into a loose and porous granular material, it is called blast furnace slag, or slag(GGBFS).
Slag is a common industrial solid waste in industrial production. For every ton of pig iron produced, 0.3 to 1 ton of slag is discharged. With the development of the iron and steel industry, the discharge of solid waste from the slag industry is increasing day by day. So, how to improve the utilization rate of slag is a problem.

The slag is ground into fine slag powder. When the slag powder is added during cement production, slag cement or composite cement of different strength grades can be prepared to better meet the different requirements of customers. It is now used as an important measure for the cement industry to reduce cement costs. Therefore, the cement industry is the main direction of slag recycling.
The slag vertical mill is the typical equipment to improve the efficiency of slag use, so which industries can the slag vertical mill production line be used in?
1. cement industry: suitable for grinding cement raw material, coal powder and cement clinker.
2. building materials and steel industries: suitable for grinding high-fine slag powder and high-fine steel slag powder.
3. thermal power plant: suitable for the preparation of coal powder and limestone powder.
4. suitable for grinding various non-metallic ores in metallurgy, chemical and mining industries;
The GRMS slag vertical mill produced by Great Wall Machinery is widely used in the grinding and ultra-fine grinding of various metallurgical industrial waste slags. The output can reach 260 tons/hour, and the system power consumption is generally less than 43 kilowatts/hour. The surface area of the finished product can reach 4500 cm²/g, which can meet the production line project with an annual output of 300,000 to 1.8 million tons of slag powder.
If you are troubled by industrial waste slag disposal, welcome to consult online, Great Wall Machinery will provide you with the most complete and high-quality service.