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The necessity of steel slag treatment process by slag vertical mill

News Date:2017-11-30 14:11:25

At present, the process of steel slag treatment in China mainly includes hot compaction, hot splashing and rotary drum method. Among them, hot compaction and hot splashing process are most popular. The selection of steel slag treatment process depends on two factors, namely, the resource flow direction of slag and its own nature. At present, the resource flow of steel slag mainly consists of two aspects: the recovery of iron from steel slag, and the usage of tailing in the materials for construction, road and other fields. Therefore, first of all, to achieve the efficient separation of the two types of materials, we can use them separately.

EPC slag project.jpg

The steel slag processing mainly uses water as a medium for cooling treatment on the steel slag, through physical cooling to achieve the separation of materials containing iron and calcium silicate in steel slag, so that crushing and magnetic separation can be conducted to effectively facilitate the separation of the two kinds of material. The iron containing material obtained by crushing and magnetic separation can be returned to act as raw material for the production of iron and steel, and tailing act as inorganic materials and are applied to construction, roads and other fields.

Whether it is used as building material or road steel slag, steel slag is often required to have good stability and lower metal iron content, so as to prevent safety and quality problems in the use of steel slag. Because the slag contains certain free calcium magnesium oxide, the calcium magnesium oxide expands with water, which brings the safety problem of steel slag as building material. Therefore, the steel slag is required to be stabilized during the treatment process to eliminate the free calcium and magnesium oxides, so as to ensure the stability of the steel slag used as a building, road and other steel slag products.

Make a summary that, steel slag must be retreated before application, in order to achieve the physical separation of materials containing iron and silicate, while achieving stabilization of steel slag, for buildings, roads and other areas.

The production line of GGBS used the most advanced vertical mill system up to now. Different with the technology used in the conventional GGBS vertical mill system in the market, CHAENG has innovated many new technology which ensure that the whole GGBS production can operation stably with high capacity, high efficiency ,low carbon



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