Blast furnace slag and water slag belong to the waste discharged from the blast furnace when smelting pig iron. Water slag is a kind of blast furnace slag, which also includes: air-cooled slag, expansion slag, slag cotton, etc., while steel slag is the slag discharged from steel making. According to the furnace type, it is divided into converter slag, flat furnace slag, electric furnace slag, etc. Main components: The main components of blast furnace slag are CaO, SiO2, Al2O3, steel slag is mainly composed of calcium, iron, silicon, magnesium and a small amount of aluminum, manganese, phosphorus and other oxides.

Under the policy of advocating the effective use of resources and protecting the environment, more and more people pay attention to the potential value of the market is constantly being mined. No matter what kind of industrial waste to realize the processing of lower-level products must be ground into powder by vertical roller mill. For different industrial waste slag, the choice of grinding equipment is also slightly different. What kind of material is more suitable for you?

Application: Blast furnace slag can replace natural stone for highway, airport, foundation engineering, railway slag, concrete aggregate and asphalt pavement, can be used for: The asphalt pavement made of slag gravel concrete is not only bright and good anti-skid performance, but also has good wear-resisting performance. The braking distance is shortened. The slag used for railway track can properly absorb the vibration and noise generated when the train is walking. Expansive slag bead is a kind of porous light slag formed by quenching blast furnace slag with appropriate cooling water. The production methods include spray method, spray method, ditch method and roller method. Can be used to make lightweight aggregate, used to make inner wall board floor, can also be used for load-bearing structure. Blast furnace slag can also be used in the production of slag cotton (with blast furnace slag as the main raw material, after melting in the melting furnace to obtain the molten substance and then refined to get a white cotton mineral fiber), glass, silicon calcium slag fertilizer, slag casting stone, hot casting slag, etc.

The purpose of steel slag varies with the composition. The steel slag with higher content of calcium, iron, magnesium and manganese is used for the cushion and structural layer of road subgrade, and is especially suitable for the aggregate pavement layer of asphalt mix. Steel slag road construction has the advantages of high strength, good wear resistance and skid resistance, good durability and low maintenance cost. Calcium, silicon, manganese and trace elements in high-phosphorus steel slag have fertilizer effect and can be used as slag fertilizer in acidic soil. In China, slag is often used as cement clinker, and all kinds of steel slag can be used as pit filling and land reclamation materials.

The selection of industrial slag grinding mill, according to the properties of slag itself is the first premise, general industrial slag hardness is not very large, although like water slag has potential hydrohard cementification performance, but the hardness is less than 9, so the selection of mill range is more extensive, but the specific type and model of the mill needs to be more later production process to determine, Different application industries have increased differences in the quality requirements of industrial waste slag. For example, for concrete aggregate, the fineness requirement is low, while for cement clinker, the fineness requirement is 325 goals. Some special industries with higher fineness requirements need to be equipped with special ultra-fine powder grinding equipment.