With ore, water, coal and other resources become increasingly scarce, and the profit space is reduced gradually of steel plant. On the other hand, a large number of steel slags are abandoned, and hard to handle, which bring problems to steel plant. Vertical roller mill is used for steel slag grinding system which is manufactured by Great Wall Machinery, solves above problems effectively, at the same time, improves the profits of steel plant.
1. Recover the investment costs in 1-3 years.
2. Adopt advanced process optimization, reducing energy consumption by 30%-50%.
3. The project general contracting can greatly reduce the cycle time of project and operation cost.
Simple operation, convenient maintenance.
Vertical roller mill equipped with automatic control system, can realize remote control, and simple in operation. It can turn roller over and convenient and quick in replace roller cover and lining board through overhauling hydraulic cylinder, reduce the losses of enterprises due to machine halt.
High production efficiency, energy- saving and environmental friendly.
Vertical roller milladopts the principle of grinding materials layer, low energy consumption and power consumption of grinding system lower than the ball mill by 20%~30%, and with increase of the raw material moisture content, energy-saving is more obvious. Energy consumption of vertical roller mill system is lower than the ball mill system by 30%~40%. Without clash produced by the steel balls striking each other and steel balls striking the liner, the vertical roller mill has lower noise, lower than ball mill by 20~25Db. In addition, vertical roller mill adopts whole sealing system, and works under negative pressure, so the environment is clean and without dust.
Strong ability in materials drying
Vertical roller mill adopts hot air transport materials, the temperature of entering air can be controlled when grinding the materials in largely moisture content, makes the product to meet the requirements of final moisture content.
Low friction and high utilization rate
Because in the operation of vertical roller mill roller and millstone have no direct contact between metals. Therefore, low in friction, the metals consumption for per product unit is 5~10g/t.
Stable product quality
Materials stay time shortly in the body of vertical roller mill, and it is convenient to detect and control product particle size and chemical composition, reduce duplication of milling, and stable in product quality.
The cost of production investment reduced greatly.
Because vertical roller mill system is simple in technology process, compact allocation, area occupying is lower by 50% than ball mill system, and can layout in outdoors, therefore, the costs of enterprise investments can be reduced directly.