Vertical roller mill (also known as vertical mill or vertical mill) is an efficient crushing equipment, widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals, and other industries, mainly used for grinding and crushing materials. The following is a detailed introduction to the vertical roller mill:
1. Structural composition
• Vertical roller mill mainly consists of the following parts:
• Body: As the support structure of the entire equipment, including the feed port, discharge port observation window, etc.
• Grinding disc: Located at the bottom of the machine body, it is the main working part for grinding materials. There are grinding grooves on the surface.
• Grinding roller: Located above the grinding disc, hydraulic or pneumatic devices apply pressure on the grinding disc to grind the material between the grinding disc and the grinding roller.
• Transmission device: drives the grinding plate to rotate through the motor and reducer to provide power for the equipment.
• Separator: Located above the mill, it is used to separate qualified fine powder from the airflow and enter the dust collection device.
• Dust collection device: collects the fine powder separated by the separator and discharges it to the outside.
2. Working principle
The working principle of the vertical roller mill is: that the material enters the interior of the mill through the feed port, is squeezed and ground between the grinding disc and the grinding roller, and is crushed into fine powder. At the same time, hot air is introduced into the mill to dry the materials and take away the fine powder. The fine powder is separated coarsely and finely through the separator. The qualified fine powder is sent to the dust collection device for collection, and the unqualified coarse powder is returned to the inside of the mill for re-grinding.
3. Technical characteristics
• High efficiency and energy saving: The vertical roller mill adopts the material bed grinding principle and makes full use of the squeezing and grinding effects between the grinding roller and the grinding disc to achieve a high grinding effect of the material with low energy consumption.
• Strong drying ability: hot air is introduced into the equipment, which can not only dry the materials but also prevent the materials from sticking during the grinding process.
• Low noise: The vertical roller mill adopts advanced sound insulation and vibration reduction technology to greatly reduce the noise generated by the equipment during operation.
• Easy maintenance: The equipment has a simple structure and the grinding roller can be automatically lifted and lowered for easy replacement and maintenance.
4. Application areas
Vertical roller mills are widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals, and other industries, and are mainly used for grinding and crushing materials. In the cement industry, vertical roller mills are mainly used for raw meal preparation, cement grinding, and other processes; in the power industry, they are mainly used for the preparation of pulverized coal; in the metallurgical and chemical industries, they are used for various ores and Grinding and crushing of raw materials.
In short, vertical roller mills, as a piece of efficient and energy-saving crushing equipment, play an important role in many industries. Its unique structure and working principle enable it to have the advantages of high efficiency, strong drying capacity, low noise, and easy maintenance.
