Slag vertical mill applications value in the metallurgical industry

    Slag is inevitable byproduct produced in steelmaking process. in accordance with the furnace can be divided into converter slag, flat slag, slag point, surveys shows that the amount of slag generated with the rapid development of the steel industry, the iron and steel enterprises waste treatment and resource utilization is more and more important in the process of industrialization of our country. How to broaden the use of slag has become a top priority, turning slag waste into treasure.

    In the slag reprocessing process, grinding mill for the comprehensive utilization of slag has a very important value, especially vertical mill as energy conservation, efficient and productive milling equipment, vertical mill in integrated steel slag application process has a very important position. Slag after processed can apply a wide range of metallurgical is very practical raw material.

    1. Waste iron and steel recycling: steel slag containing a large amount of iron, the average mass fraction of about 25%, of which about 10% metallic iron. Various size of recyclable scrap after magnetic separation, most of them with high-grade iron can be used as steelmaking and iron-making raw materials.

    2. As sintered material used: Because of slag containing 40% to 50% of CaO in converter slag. Used as sintering ingredients instead of part of the limestone, can not only recycle residual steel slag, iron oxide, calcium oxide, magnesium oxide, manganese oxide, rare elements (V, Nb, etc.), but also make the drum index and agglomeration rate higher for sintering pelletizing and sintering rate increase.

    3. Used as a blast furnace flux: Converter slag containing 40% to 50% CaO, 6% ~ 10% of MgO, which is recovered as a co-solvent blast furnace can replace limestone, dolomite, thereby saving mineral time.

    4. The use as steelmaking returning slag: return smelting slag can reduce the consumption of raw materials, then to reduce the total amount of slag smelting slag, also can shorten smelting time.

    Based on slag material is high hardness, large density, large metallic iron content and other characteristics, vertical mill focus on the material circulation, system iron removal, product delivery and other aspects, special improvements designed has been done to ensure the finished product specific surface area range can be flexible adjusted between 300~ 600m2/kg.

    Guilin Hong Cheng HLM vertical mill is developed after painstaking researching a integrate set of drying, grinding, classification, transport into one advanced powder equipment. This milling equipment can be widely used in electricity, metallurgy, cement, chemicals, non-metallic mineral industries, the main raw material for cement, clinker, power plant desulfurization limestone powder, slag powder, manganese ore, gypsum, coal, barite, calcite, bauxite and other materials processing which with high efficiency, low power consumption, large feeder size, easy to adjust, process is simple, small footprint, low noise, low dust, easy maintenance, low operating costs, less material consumption advantages, is the ideal equipment for the integrated steel slag treatment process.