Vertical Roller Mill

Vertical Roller Mill

Vertical roller mill is developed and launched by Zenith, sets medium crushing, drying, grinding, classifying and other functions as a whole, being the ideal equipment in the grinding industry. For those mining investors who want to get a cheap price and cost of mining grinder, Zenith's vertical roller mill can meet their particular requirements.

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Vertical Roller Mill Operation

The main motor through the speed reducer drives the grinding disc to rotate, and wind into the air from entering the mill, material through the spiral feeder hopper fall in the center of the disc, under the action of centrifugal force, material from the disc center to edge uniformly moving, through the upper millstone grinding roller area by grinding roller of roller compacted, bulk material directly crushed, fine materials were extruded forming bed material interparticle breakage.

vertical roller mill operation

Crushed materials continue to move to the edge of the grinding disc, until the wind ring the strong air flow away, and larger particles again fall to the disc to smash, flow of material through the upper part of the separator, in under the action of high blade separator, coarse particles back to the disc grinding, qualified fine powder with the air together out of the ground, by collecting the powder collecting device of the system, were collected from the powder that ultra fine vertical mill of products. Mixed into the materials of impurities such as iron with the movement of the material to the edge of the disc, due to its own weight and can not be blown up by the wind, drop to the ball mill for cavity is mounted on the disc at the bottom of the scraping plate scraping into the ash discharge port machine outside.

Application of vertical roller mill

Vertical roller mill is the newest grinding machine, which integrates the advanced international technology and years of rich experience. It is ideal equipment that integrates crushing, drying, grinding and grading conveyor all together. LM series Vertical mill is mainly applied in the grinding process of metallurgy, building materials, chemical, mining and other mineral industries, and suitable for grinding quartz, feldspar, calcite, talcum, barite, fluorite, rare earth, marble, ceramic, bauxite, manganese ore, iron ore, copper ore, phosphate rock, red iron oxide, zircon sand, slag, cement clinker, activated carbon, dolomite, granite, garnet, iron oxide yellow, chemical fertilizer, compound fertilizer, fly ash, bituminous coal, coking coal, lignite, magnesite sand, chrome oxide green, gold, red mud, clay, kaolin, coke, coal gangue, porcelain clay, kyanite, fluorspar, bentonite, rhyolite, pyrophyllite, shale, purple stone, Diego rock, basalt, gypsum, graphite, silicon carbide, thermal insulation materials and other non-flammable burst materials whose Mohs hardness are below 9.3.

vertical roller mill Main Structure

The main part of vertical roller mill consists of powder concentrator, roller devices, abrasive disk ,pressure devices ,reducer ,motor ,body case ,and so on. Separator is a high efficiency ,energy saver equipment for verticla roller mill. Then roller is used to grinding materials which on the grinding disk.

unique Performance features

    vertical roller mill structure
  • 1. Low investment costs

    As a set of crushing, drying, grinding, grading conveying in one, simple system, compact layout, covers an area of about 50% of the ball mill system, and can be laid in the open air, therefore can greatly reduce the cost of investment.

  • 2. Running low cost

    High efficiency: roller direct rolling ground material on the disc, low energy consumption, energy saving and milling system compared to 40% 30%.

    Less wear and tear: work wear and not with direct contact with the disk, and the grinding roller and the lining board is made of high quality materials. Therefore, the use of long service life, less wear and tear.

  • 3. High drying efficiency

    By the external access to the mill in the hot air, in the mill directly and repeatedly with the powder material full contact, drying capacity, for the mill system save a dryer, energy conservation, by adjusting the temperature of hot air, can meet the requirements of different moisture content of materials.

  • vertical roller mill features
  • 4. Product quality stability

    Due to material in the mill. The short residence time, easy detection and control of product particle size and chemical composition, reduce repetition milling, stable product quality.

    Iron content in products rarely, and by mechanical wear iron can be removed easily and used for grinding white or transparent material, the whiteness of the product and clarity.

  • 5. Environmental protection clean

    Small vibration, low noise, and the overall sealing equipment, the system in the negative pressure, no dust spillover, the environment clean, meet the national environmental protection requirements.

Typical case

limestone powder production line

vertical roller mill in the process of using the largest experience is that it is running the relatively low cost, and the ball compared to save energy consumption 30%-40%, wear less, long service life. Product quality is stable, excellent, and noise is low in the production process, no dust spillover, very environmentally friendly

[work hours]: 20 hours

[grinding machine]: vertical roller mill

[Raw materials]:limestone

[finished product]:desulfurization agent 325 mesh

Technical data





Wheel diameter(mm)




Capacity (t/h)




Fineness 400~650Mesh




Material Size(mm)


< 10






Main Motor Power(KW)








Classifier Motor Power

15 KWx5

15 KWx7

15 KWx7

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