Hefei Hengcheng Industrial Equipment Technology Co., Ltd
BASED ON POWDER, EQUIPPED WITH THE WORLD
Add to Cart
High Efficiency Energy Saving Vertical Raw Mill For Cement Plant/slag/raw Material/coal Grinding Mill
Hefei Hengcheng Technology HVM series raw meal vertical mill is a new type of high-efficiency, energy-saving and environmentally friendly grinding equipment specially designed for cement raw meal grinding system. The production capacity can reach 730 t/h, and the system power consumption is 17~20 kWh/ t, to meet the grinding requirements of cement production lines with a daily output of 300-10,000 tons.
【Working Principle】
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 passing through the annular groove on the grinding disc. The crushed material is carried by the high-speed airflow at the air ring at the edge of the grinding disc, and the large particles fall directly 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 ground 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.
Specifications And Technical Parameters Of HVM Raw Vertical Mill
| Model | HVM2500 | HVM2800 | HVM3400 | HVM3700 | HVM4200 | HVM4500 | HVM4800 | HVM5100 | HVM5600 |
| grinding table median diameter(mm) | 2500 | 2800 | 3400 | 3700 | 4200 | 4500 | 4800 | 5100 | 5600 |
| Capacity(t/h) | 85-100 | 130-160 | 190-240 | 240-300 | 320-400 | 400-500 | 440-550 | 550-670 | 600-730 |
| Raw Material Moisture | ＜10% | ||||||||
| Raw Meal Fineness | R0.08＜12% | R0.08＜14% | |||||||
| Raw Meal Moistrue | ≤1% | ||||||||
| Main Motor Power(kW) | 800/900 | 1120/1250 | 1800/2000 | 2500/2800 | 3150/3350 | 3800/4200 | 4200/4500 | 5000/5400 | 5600/6000 |
| Illustrate | Re:Raw materials bond index≤13kWh/t | ||||||||
【Product Advantages】
1. Significant energy saving and environmental protection, easy maintenance
The system is in a negative pressure state, no dust spills, the environment is clean, and meets the national environmental protection requirements; with the help of the roller turning device, the grinding roller can be easily turned out of the mill for maintenance.
2, original parts, reduce maintenance worries
The grinding rollers, rocker arms and other spare parts in the whole system are all self-made by Xinxiang Great Wall Machinery, and they are produced in original to ensure the quality and reduce the tediousness of customers' later use and replacement of accessories.
3. Low noise in material bed grinding; low dust pollution in negative pressure operation
In terms of grinding system, aiming at the different physical and chemical characteristics of various types of materials in various industries, such as moisture, grindability, product fineness, safety, etc., we have developed highly targeted, mature, reliable, safe and efficient grinding technology and supporting equipment.
The equipment is HVM type vertical mill. The processed materials range from high humidity to dry materials, from extremely difficult to easy to grind materials, and the fineness of products ranges from coarse to fine. It has a wide range of fields and a wide variety of materials. . Provide scientific and reasonable complete process plan and equipment selection of vertical mill pulverizing system, and provide integrated powder processing solutions.
【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).