LUM Vertical Roller Mill

LUM Series Ultrafine Vertical Roller Mill adopts SBM abundant experience in producing vertical grinding mill and the latest technology from Taiwan &Germany. It sets grinding, drying, classifying and transportation as a whole and has been become the Mainstream equipment in ultrafine grinding industry.

LUM Vertical Roller Mill Parts

Vertical roller mill machine full set of configuration includes hammer crusher, bucket elevator, a storage hopper, vibration feeder, micro powder mill, classifier, host frequency duplex cyclone powder collector, pulse high pressure air dust removal system, machine,air compressor, electric control system.

Vertical Roller Mill Working Principle

The main motor drives the millstone to rotate through the reduction box, meanwhile, the air flow gets into the mill through air intake. The materials come out of the screw feeder and fall on the center of the millstone, and then they will move from the center to the edge of the millstone under the affect of centrifugal force. When they move across the grinding zone, they will get grinded by the rollers. Those materials in big pieces will be crushed and grinded directly while those small ones will get extruded and they will form a material bed in which inter granule and mutual grinding will take place. The grinded materials keep moving to the edge of the millstone until they are taken away by the air current at the air ring, and the big pieces will fall again on the millstone to be grinded.

The materials in the air flow will go through the rotor vanes on the separator above. The coarse powder will go back to the millstone while the eligible powder will go out of the mill together with the air flow and get collected by the powder collector. Those collected powder is the final products of the LUM series superfine vertical roller grinding mill. The sundries mixed in the materials that go into the mill, iron piece for instance, will move to the edge of the millstone with the materials and fall down to the bottom part of the mill since they can not be blown up because of their own weight. And then these sundries will be scraped to the slag-discharge opening and discharged out of the mill. The final products can be in different fineness through adjusting the rotating speed of the rotor of the powder concentrator. The pressure on the rollers can also be changed by adjusting the pressure of the hydraulic system so that the mills can process the materials in different hardness. Besides, the load and capacity of the mill can be affected through adjusting the materials’ feeding amount.

LUM Vertical Roller Mill Advantages

Vertical roller mill  set, drying, grinding, fine powder separating and conveying into a whole, has the advantages of small occupied area, simple process, high grinding efficiency, low energy consumption, low noise, drying capacity, product fineness is easy to adjust, no dust pollution and convenient maintenance, reliable operation and so on, especially in the large grinding process, can fully meet customer demand, the main technical, economic indicators have reached international advanced level.

  • 1. LUM Vertical Roller Mill is of little dust and noise, achieving Environmental Protection Request, it is quite environmentally friendly.
  • 2. Utilize advanced working principle and reduce the grinding time, as a result, the final products has little iron and the whiteness and purity are raised.
  • 3. LUM Vertical Roller Mill has excellent grinding-efficiency for the special design of roller shell and grinding plate curve.
  • 4. Low investment cost: LUM Vertical Roller Mill use PLC/DCS automatic control system, well save the cost of operators.

Technical Data

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