Vertical Roller Mill

Overview
Vertical roller mill is mainly used for grinding raw meal, clinker, Ground Granulated Blast Furnace Slag, iron ore, limestone, coal powder, coke powder, coal gangue, fly ash, volcanic ash, gypsum, calcite, pyrophyllite, quartz, clay, sandstone, bauxite and other processing industry related to metal and non-metal mine.
GGBS production line, coal powder production line and other processing industry related to metal and non-metal mine. grinding raw meal, clinker, Ground Granulated Blast Furnace Slag, iron ore, limestone, coal powder, coke powder, coal gangue, fly ash, volcanic ash, gypsum, calcite, pyrophyllite, quartz, clay, sandstone, bauxite and other processing industry related to metal and non-metal mine.
The vertical roller mill has been widely used and promoted in the electric power, metallurgy, chemical industry, non-metal industry because the overall efficiency attributed to energy-saving and low consumption is becoming more and more evident in the cement industry.

Principle
Motor through reducer drive disc rotates, the material through the air lock feeder falls from the inlet central disc, while hot air from the inlet into the mill. As the disc rotates, the material under the centrifugal force, moving to the edge of the disc, the disc through the annular groove when subjected to roller compacted and crushed.
After crushing the material in the disc edges with high-speed airflow from the air ring, large particles fall directly on the disc re-grinding, airflow through the upper part of the separator material when, under the effect of rotation of the rotor, meals fell from the cone disc re-powder grinding, qualified powder grinding out together with the airflow through the dust collection system to collect, namely products that contain moisture material is dried in hot air in contact with the process, by regulating the air temperature, the humidity of materials to meet different requirements, to achieve the required product moisture. By adjusting the separator can achieve the desired thickness of the different products.

Feature
1. High grinding efficiency and lower energy consumption
2. Lower metal consumption per unit of product
3. Grinding on the material layer bed, minimal sound emission
4. Operation under negative pressure and minimal dust pollution
5. Simple process flow with the combination of grinding, drying and classifying in a single unit
6. Less land occupation, tight layout, light weight, lower civil works cost