HVM Series Vertical Raw Mill In Cement Plant Customizable

Top Supplier Vertical Mill Raw Milling Machine Vertical Roller Mill For Cement

HVM Series 80-730t/h Raw Meal Vertical Mill/ Raw Meal Grinding Equipment For Raw Mill Plant

The raw material vertical mill mainly consists of a powder selection machine, a grinding roller device, a grinding disc device, a pressurization device, a reducer, an electric motor, a shell, and other parts. The separator is an efficient and energy-saving powder selection device. The grinding roller is a component used to crush materials. The grinding disc is fixed on the output shaft of the reducer and is the place where the grinding roller compacts the materials. The pressurization device is a component that provides grinding pressure to the grinding roller, providing sufficient pressure to crush the materials.

Working principle:

The electric motor drives the grinding disc to rotate through a reducer, and the material falls into the center of the grinding disc from the feeding port. At the same time, hot air enters the grinding chamber from the air inlet. Under the action of centrifugal force, the material moves towards the edge of the grinding disc and is crushed by the grinding roller when passing through the circular groove on the grinding disc. The crushed material is carried up by the high-speed airflow at the edge of the grinding disc, and large particles directly fall onto the grinding disc for 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 onto the grinding disc for re grinding, and qualified fine powder is discharged with the airflow, Collect in the powder collection device, which is the product. Materials containing water are dried in the Contact process with hot gas to meet the required product moisture.

Specifications And Technical Parameters Of HVM Raw Vertical Mill

Technical advantages:

Low operating cost of raw material vertical mill
(1) Low energy consumption: The use of grinding rollers to directly crush and grind materials on a grinding disc results in low energy consumption, saving 30% to 40% energy compared to ball milling systems.
(2) Less wear: Due to the fact that the grinding roller does not come into direct contact with the grinding disc during work, and the grinding roller and lining plate are made of high-quality materials, the service life is long and wear is minimal.

High grinding efficiency
By hydraulic pressure boosting, the grinding force can be increased, thereby increasing production and improving grinding efficiency; At the same time, there is also a limiter device that only grinds the material to prevent accidental contact between the grinding roller and the grinding ring from causing equipment vibration or even wear.

Convenient maintenance
Simply flip the rocker arm and replace the roller sleeve and lining plate, which is convenient and fast. At the same time, it reduces downtime losses and saves labor costs.

In terms of grinding systems, we have developed targeted, mature, reliable, safe and efficient grinding technologies and supporting equipment targeting the different physical and chemical characteristics of various types of materials in various industries, such as moisture, grindability, product fineness, and safety. The core equipment is HVM vertical grinding, which processes materials from high humidity to dry, from exceptionally difficult to grind to easy to grind, and the fineness of products ranges from coarse to fine, covering a wide range of fields, There are various types of materials processed. Provide a complete set of scientific and reasonable process plans and equipment selection for the vertical grinding machine powder system, and provide integrated powder processing solutions.

Scheme Introduction
HVM vertical mill can produce both coarse powder and ultrafine powder, and can produce materials with different product fineness requirements, ranging from 2-5mm coarse powder (such as shale, raw material for brick making in the new wall material industry, sand making in the construction industry, etc.) to 15 micron ultrafine powder with a passing rate of 97% (such as heavy calcium powder in the paper industry and activated carbon ultrafine powder in the chemical industry). The product fineness adjustment has strong arbitrariness and wide adaptability.

Solution
For the production of coarse powder, the vertical mill needs to adopt a powder concentrator structure with low resistance and anti-wear, rather than a powder concentrator with large blade density and complex rotor structure, resulting in unnecessary investment and increased production and maintenance costs. At the same time, due to the large number of large particles, necessary anti wear treatment and structural design of the powder selection machine need to be carried out to achieve reasonable powder selection output and energy consumption;

For the production of ultrafine powder, the selection of vertical mills should focus on the design and optimization of the powder selection machine. Due to the high resistance of powder selection at this time, it is necessary to strictly control the fineness while also preventing problems such as coarse particles, excessive wear of blades, and abnormal vibration caused by high internal resistance in the mill. Therefore, for materials with different product fineness requirements, it is necessary to calculate and analyze the material and gas flow in the vertical mill, especially in the powder concentrator area, based on the characteristics of the materials, in order to determine a reasonable structure of the powder concentrator (such as the form of the rotor and the number and angle of the blades, as well as the number and angle of the stationary blades), At the same time, necessary auxiliary measures should be taken to control (such as using a sealing fan for gas sealing, effectively controlling the coarsening of large particles).