Application of vertical slag mill

To reasonably obtain the fineness of slag powder and effectively stimulate the activity of granulated slag, you must first select the appropriate grinding method and grinding equipment. The HLM vertical slag mill developed by Guilin Hongcheng Mining Equipment Manufacturing Co., Ltd. is an integrated equipment that integrates crushing, drying, grinding, separation, and transportation. It has a simple process and allows the particle size of the materials to be ground. It has the advantages of large size, small footprint, low noise, energy saving, high efficiency and environmental protection. Today I will introduce to you the application of HLM vertical slag mill.

Only when the potential activity of granular blast furnace slag is fully stimulated can it be effectively used. To achieve this goal, it is necessary to grind the slag into fine powder. The finer the slag grinding, the higher the corresponding strength level, and the early strength and later strength of concrete will also be significantly improved. However, due to the poor grindability of slag, under normal circumstances, the Mohs hardness is around 6, and the grinding work index Wi is generally above 20kWh/t. The finer the grinding, the higher the power consumption, resulting in an increase in the cost of slag powder. . Therefore, designing appropriate grinding equipment and grinding processes is the key to successfully destroying the particle structure of slag and producing qualified slag fine powder. The HLM vertical slag mill is a fully domestically produced high-efficiency grinding equipment. Its design fully considers the grinding characteristics of the slag and the safety and reliability of the mill during operation. Strive to make the equipment efficient, simple, clear, durable, and easy to maintain and operate; so that the mill not only has high grinding efficiency, but can also perform timely and reasonable flexible control and adjustment of the grinding conditions according to the abrasiveness of the material at any time.

Chemical composition and grindability of commonly used slag: The glass content of granular slag from large steel plants in my country is generally above 85% and has good hydraulic hardness. The chemical composition of granulated blast furnace slag generally contains oxides such as SiO2, CaO, Al2O3, and MgO, with the first three accounting for more than 80% of the total content. In addition, it also contains a small amount of manganese oxide, iron oxide, and sulfide. However, the chemical composition of slag fluctuates within a wide range. The quality evaluation of water-quenched granulated blast furnace slag, according to the slag quality assessment method, the quality coefficient K of granulated blast furnace slag must not be less than 1.2. However, when evaluating the quality of blast furnace slag, the alkalinity coefficient Mo and activity coefficient M of the slag must also be considered. The higher the alkalinity coefficient and activity coefficient of the slag, the better the quality of the slag. In the application case of HLM vertical slag mill, the actual fineness of the finished slag powder is more than 420m2/kg, and the output is 1~1.1 times of the designed output of the mill, which is favored by customers. If you have relevant needs, please contact us for details of the equipment. Email address:mkt@hcmilling.com