Industry Reports
What are the advantages of 300t/d slag vertical mill?
Slag vertical mill is a commonly used grinding equipment in iron and steel plants and cement plants. After processing, slag can be refined into slag cement, slag micropowder, slag wool, etc., which are widely used. So compared with other grinding equipment, what are the advantages of slag vertical mill? Let's take a look!
Slag vertical mill is a new type of grinding equipment, which has obvious advantages compared with other mills:
1. High efficiency. The slag vertical mill uses the material bed grinding principle for material grinding, which is 30% more efficient than the ball mill.
2. Small footprint. The crushing, conveying, grinding and drying of the mill are integrated, the building area accounts for about 70% of the ball mill, and the building space accounts for about 50-60% of the ball mill.
3. Great drying capacity. The slag vertical mill uses hot air to transport materials. When grinding materials with high moisture content such as coal and slag, the inlet air temperature can be controlled to make the product reach the final moisture content. The vertical mill can dry materials with a moisture content of 12-15%. Even dry ball mills can only dry materials with a moisture content of 3-4%.
4. Metal wear is small. The mill operates without direct metal contact. For example, when grinding limestone, the unit wear is generally 4-6 grams/ton, but the ball mill will cause 500 grams/ton wear. For vertical mills, when grinding white minerals, the impact on whiteness is less than for ball mills.
5. Low energy consumption. The mill adopts horizontal grinding discs and conical grinding rollers to ensure that the materials can form a stable material bed, and the energy consumption is low, which saves 30% to 40% compared with the ball mill system, that is to say, the single machine power consumption does not exceed 30Kwh.
Slag micropowder is a new type of green and environmentally friendly product, which can not only effectively utilize blast furnace metallurgical slag and turn waste into treasure, but also promote the reduction of slag land occupation and environmental pollution. The promotion and application of the slag vertical mill pre-grinding technology will better solve the problems of high energy consumption, low production capacity and large investment in the industry.
