High Grinding Efficiency Powder Raw Vertical Roller Mill For Cement Production Line

High Grinding Efficiency Powder Raw Vertical Roller Mill For Cement Production Line

Description

HVM series vertical grinding machine is an energy-saving advanced grinding equipment integrating drying, grinding, grading and conveying developed by Hefei Hengcheng through learning and introducing foreign advanced technology and through more than 20 years of dedicated research and development.

Hefei Hengcheng HVM vertical mill has the advantages of high grinding efficiency, low power consumption, large feed size, easy adjustment of product fineness, simple equipment process flow, small floor area, low noise, small dust, simple use and maintenance, low operating costs, and low consumption of wear-resistant materials.

This product has solved the problems of low output, high energy consumption and high maintenance cost of ordinary industrial mills, and its performance has reached the international advanced level.

【Working Principle】: the motor drives the grinding plate to rotate through the reducer, the material falls in the center of the grinding plate from the feed port, and the hot air enters the mill from the air inlet. Under the action of centrifugal force, materials move towards the edge of the grinding plate. When passing through the circular groove on the grinding plate, they are crushed by the grinding roller. The crushed materials are carried away at the edge of the grinding plate by the high-speed airflow at the wind ring. Large particles directly fall onto the grinding plate for re grinding. When the materials in the airflow pass through the dynamic and static separators, under the action of the rotating rotor, the coarse powder falls onto the grinding plate for re grinding. The qualified fine powder is grinded together with the airflow, The product is collected in the powder collecting device. Materials containing water are dried in the process of contacting with hot gas to reach the required product moisture.

Specifications and Technical Parameters of HVM Raw Vertical Mill

Technical advantages and characteristics

High grinding efficiency

The grinding efficiency is high, and the energy consumption is low. Compared with ball milling, the energy consumption is 40 - 50% lower. The single machine production capacity is large, and low valley power can be used.

High degree of automation

PLC full-automatic control system is adopted, and remote control can be realized, which is easy to operate, convenient to maintain and reduce labor costs.

Stable product quality

The material stays in the mill for a short time and reduces repeated grinding. The product has uniform particle shape, narrow particle size distribution, good fluidity, strong adaptability, and low iron content, high whiteness and purity.

Low operation and maintenance costs

The grinding roller can be turned out of the machine by hydraulic device, which is convenient for maintenance. The roller sleeve of the grinding roller can be used upside down to extend the service life of the wear-resistant material, and the wear is low. The lining plate of the grinding roller and the grinding plate is made of special materials, and the service life is long.

Low noise and environmental protection

The whole system has small vibration and low noise. The whole sealed negative pressure operation system and the gas box pulse dedusting system are adopted. There is no dust overflow, and the dust-free workshop can be basically realized.

Strong drying capacity

The hot air is directly connected with the material in the mill. The drying capacity is strong, and the feed moisture can reach up to 15%. No additional dryer is required, saving equipment investment cost and energy consumption cost.

High reliability

The grinding roller limit device is adopted to avoid the severe vibration of the mill due to material breaking. The new type of grinding roller sealing device is adopted, which is reliable and does not need a sealing fan. It further reduces the oxygen content in the mill and has excellent explosion suppression performance.

Low comprehensive investment cost

It integrates crushing, drying, grinding, grading and conveying. The process flow is simple, the structure layout is compact, and the floor area is only 50% of that of ball mill. It can be arranged in the open air, and the construction cost is low, which directly reduces the investment cost.