In recent years, due to the continuous promotion of environmental protection policies, the state has made clear regulations on the recycling of industrial wastes, and thus the subsequent disposal of, for example, slag, water slag, steel slag, etc., has also received more and more attention from enterprises.
Slag, also called granular slag, is a by-product produced in the process of blast furnace smelting. It is a highly active and water-hard mineral, which can be used as an additive for cement and concrete after crushing and processing.
The main uses of slag micro powder:
1、In the production process of cement, it is added into cement according to a certain proportion as the constituent material for producing slag cement. In order to improve the quality of cement, reduce the production cost, and minimize the energy consumption, the amount of slag added into slag cement is 20%-70% (mass fraction).
2. In the ready-mixed concrete and cement products, it replaces part of the cement in equal or excess amount, and it is used as cementitious material, which is directly mixed with concrete and mortar to improve its working characteristics.
Slag Vertical Mill
Vertical mill is a special equipment in the current slag fine grinding industry, which has many unique advantages compared with other mills such as ball mill and Raymond mill:
1.Slag vertical mill adopts vertical pulverizer, which has the advantages of simple structure, compact arrangement, less space occupation, and can be installed outdoors, which saves a lot of investment cost. However, the ball mill is a horizontal structure, which is less integral, loosely connected with each other, and each one occupies a large space, so it can't form a complete production system from lump material to finished powder.
2. Compared with Raymond mill, vertical mill is a kind of grinding method integrating crushing, drying, grinding, grading and conveying in one, with large grinding capacity and high output for slag powder making, which can be equipped with 5-30 million tons of slag micropowder production line, while Raymond mill is more suitable for non-metallic ore powder making, and the output is lower.
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