What is the preparation of steel slag micro powder composite powder by high specific surface steel slags vertical mil?

Steel slag is solid waste discharged from converters, electric furnaces and other equipment in the iron and steel smelting process. The main components are calcium, magnesium, silicon, iron, aluminum, manganese and other oxides, and the emission is about 15-20% of crude steel. It has broad utilization value. Usually, high-specification steel slag vertical mill is used to grind it into fine powder to prepare steel slag micro-powder composite powder, which produces greater use value.

Cement clinker can be further replaced by the synergy of various solid wastes such as water-quenched blast furnace slag, steel slag, desulfurized gypsum, fly ash and tailings micropowder, and the highest replacement ratio can reach 99%. The activity of steel slag powder composite powder prepared by high-specification steel slag vertical mill is significantly better than that of S95 slag powder.

There are still many problems in preparing steel slag micro-powder composite powder from steel slag. Steel slag contains a large amount of residual micron-sized metal iron particles, which is a relatively difficult material to grind. As a result, the energy consumption of the steel slag is high during the grinding process, and it is easy to cause loss to the grinding equipment and increase the production cost. It is difficult for the general mill to meet the requirements of the steel slag grinding.

Aiming at the problem of difficult grinding of steel slag, We have specially developed a high-specification steel slag vertical mill GKLM vertical mill, which uses special wear-resistant materials and processes to enhance the wear resistance of grinding rollers and grinding discs. /Roller press + ultra-fine ball mill” two-stage grinding process, improved to a high-specification steel slag vertical mill to produce finished products in one step. And the specific surface area of the produced steel slag powder can reach 600㎡/kg, which has high activity. It can be seen that the steel slag powder composite powder is used in the admixture of cement concrete to save the amount of cement.