The new type of steel slag processing equipment uses steel slag and primary selected slag steel as raw materials, adopts a set of closed-circuit production and beneficiation process, through screening, ball milling, dry magnetic separation and wind classification processes, four types of high efficiency, high quality and high added value are obtained. The products are high-quality steel scraps with iron content greater than 90% that can be used for steelmaking, high-grade iron fine powder used for iron making, steel slag powder used as a high-activity admixture for cement and concrete, and used for high-grade road pavements steel slag asphalt concrete surface aggregate. In this steel slag processing technology, the main equipment provided by advanced manufacturers of steel slag processing equipment are: feeder, jaw crusher, cone crusher, circular vibrating screen, drum screen, ball mill, rod mill, magnetic separator, and dust removal equipment, etc.
Among the steel slag produced by the steelmaking plant, some steel slag have a particle size that exceeds the very large feed size of the initial breaking, and need to be pretreated with tools such as breakers. The pretreated steel slag meets the equipment feed requirements. Crushing and screening Jaw crusher, cone crusher, vertical shaft impact crusher and screening equipment are used to crush and separate raw materials to a certain particle size for use in construction materials or further processing. In the process of crushing and screening, both cone crusher and vertical shaft impact crusher are forbidden to pass iron. Iron is a more valuable component in steel slag. Adding iron removal equipment to the production line to remove iron can not only ensure the normal operation of the equipment, but also bring huge economic benefits. The crushed and magnetically separated materials can be further ground by a suspended roller mill to obtain materials of different finenesses, which can be used for making bricks, cement and concrete. The steel slag crushing production line generally adopts two-stage closed-circuit crushing, which is usually composed of jaw crusher, impact crusher/cone crusher, belt conveyor, vibrating feeder, circular vibrating screen and other equipment a certain convergence relationship.
The design of the steel slag crushing production line is rationalized and scientific, and its advantages and characteristics are also obvious. The specific performance is as follows:
- The equipment is reasonably equipped, all links are harmoniously connected, the production line process is smoother, the operation is simple, the operation is stable, and the failure is reduced by more than 60%;
- The production line layout is scientific, reduces useless space, effectively reduces the production line area by more than 15%, and saves nearly 50,000 yuan in civil engineering investment costs;
- Environmental protection systems such as dust prevention and noise reduction are installed to ensure the green operation of the production line, will not cause environmental pollution, and meet the government’s production standards;
- High production efficiency and large output. The crushed steel slag material has uniform particle size, beautiful grain shape, good quality, and higher market value.
- The effect of energy saving and environmental protection is remarkable, and all links can meet the production needs of users, making its economic benefits very considerable.