Steel slag,water slag processing technology to improve slag utilization

According to recent years, the data show that the steel market to increase product structure adjustment, steel production capacity has been greatly improved. But emissions from iron and steel slag, water slag, fly ash and other solid waste also will surge, annually produces about 3.8 million tons of water slag tailings,steel slag tailings 1.2 million tons, 18 million tons of fly ash. Without proper treatment, recycling, internal transport costs not only increase, but also pollute the local environment.

Generally slag slag re-use in order to make it applicable to a wider range, which has been micronized grinding mill for grinding and crushing, but grinding time can't be long.

As we all know, the longer the material grinding, grinding out the finer granularity. However, with the extension of the grinding time, the material gradually increased surface area, which can also increase the surface area, and thus, fine particles mutual aggregation, clumping tendency of gradually increased. After some time, the mill will be in a "grinding reunion" dynamic equilibrium process, called "grinding limit" to achieve. In this state, even if an additional grinding time, grinding finer material is difficult, and sometimes even make coarsening. Meanwhile, the grinding energy consumption doubled, reducing the grinding efficiency. This phenomenon is common when grinding is not obvious, but in the fine grinding and ultrafine grinding mill for too long if there will be grinding agglomeration. However, if the grinding time is too short and worry about uneven grinding and particle size, it is not fine enough. Chaeng(Great Wall Machinery Co., Ltd.) For this problem, input a lot of manpower and material resources, after several years of research and study, creating a steel slag, water slag, slag grinding equipment GRM series vertical roller mill machine (vertical mill), to grinding steel slag,water slag ,slag , build particle size to meet the requirements, can be widely used in the production of cement, building materials, metallurgy and otherindustries.

Further, steel slag,water slag,slag grinding time is too long, grinding produced reunification, the Great Wall machinery mechanical grinding experts also proposed such a solution: add grinding aids. It is formed of material particle surface wrapping film, the surface is saturated and no longer attract each bonded into a group, and through the crack formation and propagation process of defense "closed" and absorption, reduce particulate hardness, strength weakened, improve its grindability. By keeping aids dispersion of the particles to prevent coalescence between the particles or aggregates. The finer grinding size, use of aids more significant effect.