On the importance of steel slag mill in industrial waste treatment

Steel slag mill is a special grinding equipment to deal with steel slag, water slag and other industrial waste, steel slag is produced in the metallurgical industry in the production of waste slag, the main cost of slag steel, iron, calcium oxide, magnesium oxide, etc., although it is a waste slag, but the main components therein have a certain economic benefits, the utilization rate of steel slag is rising, and it occupies an important position in the recycling and reuse of industrial waste slag.

Solid steel slag waste after recycling the main application areas analyzed

1. Recycling of iron and steel scrap, steel slag itself is the slag discharged from steelmaking, which contains a large amount of available iron, high iron grade steel slag as steelmaking, ironmaking raw materials to achieve full utilization of resources.

2. The main components of steel slag also contains a large number of free calcium oxide, magnesium oxide, such components can be used to replace limestone, dolomite for the blast furnace as a co-solvent after milling and sorting, and the magnesium and calcium of steel slag in the form of oxidation, while limestone, dolomite also need to be thermally decomposed can be obtained, so steel slag used in the blast furnace co-solvent to use not only to save the resources of the ore, but also to save energy a lot of energy loss of thermal energy.

3. Calcium oxide in steel slag can replace limestone for sintering ingredients, and iron, iron oxide, etc. can also effectively reduce the consumption of sintering ore fuel, but also can be used for steelmaking return slag.

4. Steel slag can be used for the production of poor-quality cement, replacing crushed stone as fine aggregate for concrete, Raymond mill grinding steel slag with water-hardened gelatinization, can be manufactured to produce cement admixture, no clinker cement, less clinker cement, etc., and wear-resistant, corrosion-resistant, compression-resistant, frost-resistant performance, crushed and ground materials for concrete mixing plant in the same effect is remarkable, but it is worth noting is the dosage of steel slag need to grasp the correct, do not be too much. Never too much.

5. In the 1960s, Cheng Jinshu and others developed a new type of microcrystalline glass granite with reduced steel slag as raw material, which has exquisite appearance and great market value.

6. According to the acidity and alkalinity to classify, steel slag belongs to a kind of alkaline slag, the nature of this can be used in acidic soil used to improve soil quality, and the phosphorus content of which is to enhance the ability of crops to resist pests and diseases, can be made into agricultural fertilizers to use.

7. According to the alkaline characteristics of steel slag can also be used for industrial wastewater treatment, for example, in zinc wastewater, zinc removal rate can be as high as 98%, the solution to the treatment of mercury content in marine water also has a better effect, so it can be used in environmental engineering as an effective way to deal with metal wastewater.

At present, the application of steel slag is mainly used as raw materials for blast furnace cement, road projects and a small amount of agricultural production, other applications are still to be further improved and realized, from the application of steel slag can be known, steel slag recycling and reuse of its processing methods are broadly divided into two kinds: one is the hot stewing decomposition method, and the second is the mechanical crushing method, and the mechanical crushing method of which the indispensable processing machine is the industrial crusher, the industrial grinding mill and the Effective utilization of steel slag effect and mechanical crushing method in the quality of the processing machine has a direct relationship, thus showing the importance of steel slag mill in the status of industrial waste disposal, without the support of industrial Raymond machine and other crushing equipment, steel slag may be realized in the cement, concrete, agriculture and other fields of application. In terms of current production technology, the utilization efficiency of steel slag and the use of results there are still some limitations, the need to continue to dig, broaden the field of application, improve and perfect the use of performance, which also requires mechanical crushing equipment in the steel slag powder fineness and quality breakthroughs in technological improvements.

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