Steel slag primarily comes from the oxidation of elements contained inside the molten iron and scrap; metal impurities; the slag agent which include limestone, fluorite, silica, at the same time as oxidants, products and also the erosion of lining materials.
The primary components of steel slag are calcium, iron, silicon, magnesium, aluminum, manganese and phosphorus oxides. The main use with the slag are as follow. Initial, it is usually as opposed to lime as a solvent to return the blast furnace or furnace within the firm itself. It can also be used for roadbed, railway embankment, and as cement raw material, soil, and so on.
The processing technologies of steel slag are cold abandoned law, hot pour strategy, splashing cold plate method and slag water quenching approach. Commonly a closed loop production process is going to be applied. And we can receive about 4 high-quality and high value-added items by the approach of crushing and screening, vacuum ball milling, dry magnetic separation and classification processes of wind. The 4 merchandise are respectively high-quality steel scrap, high-grade iron powder, steel slag powder made use of as cement, the steel slag aggregate made use of as asphalt concrete surface layer within the road. Soon after completion with the entire production process, slag could be achieved zero emissions, along with the environment pollution of the slag is completely solved.
Many engineering machinery companies specialize in producing ultra-fine grinding and screening equipment for steel slag processing. For example, the European version jaw crusher, hydraulic cone crusher, cone crusher, impact crusher, LM vertical milling machines and other equipments. In China, 1 firm has established a productive steel slag crushing magnetic line which can handle 1 million tons of slag. To have the targets of having all the slag processed, recycling, circular economy, emissions-reduction, another company invested about 8 million yuan (about $123,0000) on a steel slag crushing magnetic line. And they purchased jaw crusher, cone crusher and cone crusher from engineering machinery company. New production line was created and installed by them.
The magnetic line is actually a totally automated production, a lot more scientific and rational, simpler to use, greatly improving the productivity of labor. Production line and delivery system installs the dust removal device, effectively reducing the dust emissions. The whole production procedure is formed by two jaw crusher, a fine break CS cone crusher, 5 iron, five screening and other components. Since the line has excellent ability of magnetic separation and recovery of ferrite, the steel production significantly is improved.
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