PLC VRM Vertical Raw Mill Grinding For Energy And Mining Industry

High Efficiency Raw Material Grinding Mill Vertical Roller Mill With ISO Certificate

【Principle Of Raw Meal Vertical Mill In Cement Plant】
The motor drives the grinding disc to rotate through the reducer, the material falls into the center of the grinding disc from the feed inlet, and the hot air enters the mill from the air inlet. Under the action of centrifugal force, the material moves to the edge of the grinding disc, and is crushed by the grinding roller when it passes through the annular groove on the grinding disc. Re-grinding, when the material in the airflow passes through the dynamic and static separator, under the action of the rotating rotor, the coarse powder falls on the grinding disc for re-grinding, and the qualified fine powder is milled together with the airflow and collected in the powder collecting device, which is product. Moisture-containing materials are dried during contact with hot gas to achieve the required product moisture.

【Main Features Of The Product】

1. High efficiency and energy saving
High grinding efficiency and low energy consumption, compared with ball mills, the energy consumption is 40%-50% lower;
Large single machine production capacity

2. Easy maintenance and low operating cost
Maintenance work is very convenient;
The service life of wear-resistant materials;
High degree of automation and easy operation

3. Low comprehensive investment cost
It integrates crushing, drying, grinding and conveying. The process is simple, the system equipment is small, the structure layout is compact, and the floor area is small, which is only 50% of the ball mill.

4. Stable product quality
The product quality is stable; the product particle shape is uniform, the particle size distribution is narrow, the fluidity is good, and the product adaptability is strong.

5. High reliability
Reliable sealing and excellent explosion suppression performance.

6. Environmental protection
The whole system of HVM vertical mill has small vibration and low noise; no dust spillage

Specifications And Technical Parameters Of HVM Raw Vertical Mill

【Double Dust Collection System】

This process plan uses a cyclone dust collector for product collection, which can effectively reduce the working negative pressure of the system and the amount of gas passing through the dust collector. , raw ore, etc.

【An Introduction】
HVM vertical mill can produce both coarse powder and ultra-fine powder, and can produce coarse powder from 2 to 5mm for materials with different product fineness requirements (such as grinding shale, raw material for brick making in new wall material industry, sand making in construction industry) etc.) to 15 micron ultra-fine powder with a pass rate of 97% (such as heavy calcium powder in the paper industry, activated carbon ultra-fine powder in the chemical industry), the product fineness adjustment is highly arbitrary, and the adaptability is wide.

【Solution】
For the production of coarse powder, the type selection of vertical mill needs to adopt the structure of the powder separator with low resistance and anti-wear. At the same time, due to the large number of large particles, necessary anti-wear treatment and powder separator structure design are required to achieve reasonable powder selection output and energy consumption;
For the production of ultra-fine powder, the vertical mill should focus on the design and optimization of the powder separator. Due to the large resistance of the powder selection at this time, it is necessary to strictly control the fineness, and to prevent the large particles from running thick, excessive blade wear and damage. Problems such as abnormal vibration caused by large internal resistance of the mill. Therefore, for materials with different product fineness requirements, it is necessary to calculate and analyze the smoothness of materials and gases in the vertical mill, especially the part of the powder separator, according to the characteristics of the material, so as to determine a reasonable structure of the powder separator (such as the rotor form, the number and angle of blades, the number and angle of stationary blades), and at the same time, necessary auxiliary means should be taken to control (such as using a sealed fan for gas sealing to effectively control the running of large particles).