High-efficiency and comprehensive recycling of steel slag crushing and grinding production line According to the characteristics of each steel enterprise, C&M Mining Machinery has developed two kinds of high-efficiency comprehensive recycling and utilization of steel slag, dry method and wet method, and complete sets of equipment, with a production capacity of 300 to 2 million tons/year, it can be selected by the majority of steel slag treatment plants, so that steel slag can be efficiently and comprehensively utilized to achieve zero discharge, and it can provide a complete set of high-efficiency energy-saving processes and equipment guarantees for iron and steel enterprises to achieve circular development and build energy-saving enterprises.
Process flow chart (dry method):
Dry process:
The magnetic steel slag water washing, ball mill, magnetic separation, purification process and comprehensive slag recycling technology and complete sets of equipment developed and developed by C&M Mining Machinery can not only realize water recycling, but also have high purification grade of slag steel (TFe>90%), iron content The grade of slag powder reaches 55%. The iron slag powder is formed into balls by the briquetting machine and then returned to the sintering plant to replace part of the lime.
The recycling of steel slag should focus on the construction and building materials industry, and the utilization in cement, concrete, pavement and building materials is the development direction of steel slag utilization. Therefore, the treatment of liquid steel slag in iron and steel enterprises should focus on these utilization methods to select the steel slag treatment process.
Process flow diagram (wet process):
Wet process:
The dry-process steel slag production process does not need to consume precious water resources. After the steel slag is crushed, rod milled, and magnetically separated, the slag steel can be self-grinding to obtain grade A and B scrap steel. The iron content of the slag powder can reach more than 55%. The content of magnetic iron in the tailings of -5~10mm is less than 2%. After precipitation treatment, it can be used as steel slag dry powder mortar or used to prepare cement, steel slag powder, etc.
The selection of treatment process is generally considered comprehensively from the aspects of comprehensive utilization of steel slag, energy saving and environmental protection, and investment. Under the premise of satisfying the smooth progress of the steelmaking process, combined with the viscosity and fluidity of liquid steel slag, a relatively reasonable treatment process is selected. To achieve effective separation of slag and iron, keep the activity of steel slag as much as possible, and reduce the instability of steel slag.
Our advantage:
- The magnetic steel slag washing, ball mill, magnetic separation, purification process, comprehensive recycling technology of slag and complete set of equipment can not only realize water recycling, but also the purification grade of steel slag is high (TFe > 90%), and the taste of iron-containing slag powder is up to 55%.
- The iron slag powder is returned to the sintering plant after passing through the briquetting machine to replace part of the lime. The tailings have low moisture content and can be stacked and stored for use in non-burning bricks or road permeable bricks.
- The dry-process steel slag production process does not need to consume precious water resources. After the steel slag is crushed, rod milled and magnetically separated, the steel slag can be self-grinding to obtain grade A and B scrap steel, and the iron content of the slag powder can reach more than 55%. , The magnetic iron content of -5~10mm tailings is less than 2%. After precipitation treatment, it can be used as steel slag dry powder mortar or used to prepare cement, steel slag powder, etc.
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