Vertical roller mill

Vertical roller mill operation

One of our main products, Jaw Crusher is designed by our engineers with large reduction ratio, even granularity, simple structure, reliable operation, convenient maintenance, low cost, Jaw Crusher is widely used in mining, metallurgy, construction, highway, railroad, and chemistry industries.Vertical roller mill has many differentforms, but it works basically the same. All of these forms of machine comeswith roller (or the equivalent of roller grinding parts), and roller along thetrack of the disc at the level of circular movement imposed by externalgrinding roller in the vertical pressure on the disc on the material being thejoint action of compression and shear, and to crush.

It has two pairs of grinding rollers, eachpair of roller composed of two narrow rollers, mounted on the same axis and canrotate at different speeds. There are two circular disc slot, and roller to thetire shape, work pressure in the tank. Disc roller and the relative slidingvelocity between small and roller can swing, even if the roller sleeve and thedisc after the liner wear can guarantee a good abrasive, will not affect thegrinding effect. Roller symmetrical structure, one side can be upside down afteruse and wear.

In order to improve the grinding machine'sworking efficiency, and high power consumption and high material consumption ofgrinding to avoid "breaking" unnecessary work, try to use process of"more crushing and less grinding", reducing mill loss. The crusher isoften associated with a joint working, verticalroller mill must work jointly with the classifier. Set the prescreening forcrushing section, the materials can be without this broken material prescreening, can reduce the amount of ore into the crusher crushing and reduceunnecessary. And check the screening set in crushing the material can be notqualified grade returned to the crusher and crushing, check screening settingscan strictly control the crushed product size.

Particle size of ore milling than orecrushing stricter requirements, and the mill itself has no ability to controlthe particle size of the product (rod mill has a certain granularity controlability, can open circuit grinding), because the classifier, set to control thegrinding in the mill must be outside, namely the closed-circuit grinding.

Vertical roller mill operation

Right operation is always to ensure that equipment in good running conditions, each and every operator have to operate as outlined by the operational guidelines. Master the usage of correct vertical roller mill operation process and gear specifications, as a way to ensure the protected and trusted operation with the machine and to maximize the economic added benefits, which also can bring maximum financial advantages for the customers.

1.Prior to each and every vertical milling machine boot will have to check the hopper from debris, verify no matter if the throttle closed draught fan;

2.User should really strictly match 120-160 mesh sieve size requirements for execution.Due to the fact the finished solution particle size completely on adjusting the classifier to attain speed, as an alternative to mesh screening out.Cyclone sieve just played two times screening protective function, avert irregular particles into the finished powder.

3.When the feed price unchanged, because of mistaken illusion of size beneath standard,improving the side grinding speed once more, in order that make the material on the grinding cavity remain within the principal time increasing, the temperature will rise together with the powder material particle size elevated, but in addition have some negative final results;

4.Following the completion from the entire transfer system, inside the formal production,the wind does not need to have frequent adjustment quantity, needs to be fully open throttle. Adjustable vice mill feed rate and to meet the demands of distinct items.

5.When constantly functioning for more than 5 days, should really replace the dust bag dust bag or artificial will adsorption powder knock off, maintain superior permeability, so as to make sure the perform stability of yield and temperature.

6.Inside the production process, in order to assure the dust bag has great permeability, achieve the stable yield and reduced the temperature, the user ought to install oil-water separator. Pulse air clean is one of the most important to assure the regular perform.

7.Prior to each and every stop, you should total the production of material inside the hopper and clean the hopper, continue to operate for 3-5 minutes and then stopped by the system to stop operating.

Vertical roller mill with its high efficiency, low energy consumption, no dust pollution, modest noise, the fineness of item is simple to adjust, wearing parts consumption is little plus the structure is uncomplicated, low failure rate, compact occupation region along with the other outstanding advantages welcomed by customers. I believe that in the close to future, it will likely be relying on its personal merits, replacing Raymond mill or ball mill, becoming the mainstream grinding equipment , to bring the gospel for the grinding business.

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  • 1. LUM 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 has excellent grinding-efficiency for the special design of roller shell and grinding plate curve.
  • 4. Low investment cost: LUM use PLC/DCS automatic control system, well save the cost of operators.

Model

LUM1125

LUM1232

LUM1436

Wheel diameter(mm)

1100

1200

1400

Capacity (t/h)

5~12

7~16

8~18

Fineness 400~650Mesh

~D97

~D97

~D97

Material Size(mm)

<10

< 10

<10

Moisture

<3%

<3%

<3%

Main Motor Power(KW)

250

315

355

Roller(set)

3

3

3

Classifier Motor Power

15 KWx5

15 KWx7

15 KWx7

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