Vertical Roller Mill

two hot models of vertical roller mill

The vertical roller mill has two hot sale models, namely the LM series vertical grinding mill and LUM series ultrafine vertical roller mill.

    LM Vertical Grinding Mills

    LM Vertical Grinding Mill

  • 【Feed size】:38-55mm
  • 【Capacity】:10-50t/h
  • 【Application】:Applicable to the cement, electric power, metallurgy, chemical industry, mineral industry material milling.
  • 【Material】:Cement, coal, feldspar, calcite, talc, fluorspar, iron ore, copper ore, phosphorite, graphite, quartz, slag etc..
    LUM Ultrafine Vertical Roller Mill

    LUM Ultrafine Vertical Roller Mill

  • 【Feed size】:Less than 10 mm
  • 【Capacity】:5-18t/h
  • 【Application】:Widely used in chemical, metallurgy, non-metallic mineral industries ultra-fine grinding plant.
  • 【Material】: Mohs hardness below level 5, density below 3.2, the compressive strength below 150Mpa, non brittle material granular and powdery material is non corrosive, inflammable and explosive mines, such as limestone, calcite, talc, barite, dolomite etc. nonmetal ore.

Vertical roller mill Introduction

The vertical roller mill which belongs to equipment for fine grinding, fine grinding of hard and medium hard or soft material in the building materials industry, especially used in the cement industry, ceramic industry, power sector, such as cement clinker, limestone, clay, China clay, feldspar, gypsum, barite and coal etc..

vertical roller mill

The vertical milling machine has become the preferred equipment for cement industry raw material grinding, is estimated to have more than 600 sets of production. Large vertical mill capacity has reached 600t/h, the transmission power of 5000KW. At the beginning of the 90's the mill in cement grinding and have new progress, there are many large grinding operation.

The basic process of the roller mill is the final grinding, but in order to compete and roller press pre grinding, adapt to the need of tube ball mill system reform, Japan since 1987, developed the vertical pre grinding mill, and is gradually developed.

unique design idea and the characteristics

The vertical milling machine grinding principle is that the mill using 2 ~ 4 rollers close to the disc, for medium speed rotating the ground material, basically belong to the material layer grinding. The material is mainly affected by the rolling action of grinding roller and grinding in the mill, at the same time as the grinding roller and the grinding disc to rotate between the existence of velocity difference, so also has shear milling. Effect of feeding disc center material due to the centrifugal force of the rotary disc to disc, peripheral moves into the grinding roller between the roller and the grinding disc in. Function of grinding roller in the hydraulic device and a pressurizing mechanism, applying pressure to the material in the grinding roller.

The material is compacted crushed after continue moving towards the edge of the grinding disc, from the material retaining ring overflow disc edge. At the same time, the hot air from the annular nozzle millstone around the high speed upward jet, the coarse particles back to the millstone crushing blow again, and suspension drying of material. A fine powder into the upper air separator with separating, reach a certain particle diameter of qualified fine powder with the airflow from the mill to overflow and collected, coarse powder back to the millstone and the feeding material together with the re grinding.

Vertical roller mill wear parts

The vertical roller mill by the separator, roll grinding, grinding, pressure device, reducer, motor, shell etc.. The separator is an important component for ensuring product fineness, it consists of the drive system, rotor, guide vanes, a shell, a coarse powder blanking cone outlet, etc.. The grinding roller is the main components of compacted crushed to the material, which is composed of the roller sleeve and roll heart, axle and bearing and roller bracket etc.. Each vertical milling machine 2-4 roll grinding, grinding disc is fixed on the reducer shaft, driven by the speed reducer rotating disc. Different types of vertical mill grinding disc shape is different, the grinding disc by disc seat, a lining plate, etc. the material retaining ring.

Vertical mill wear parts

The pressure device is provided an important part of grinding pressure, which is composed of high pressure oil station, a hydraulic cylinder, a pull rod, an energy accumulator and the like, can exert enough pressure to make the material crushing and grinding roller. Reducer should reduce the speed and power transmission, drive disc rotation effect, but also bear the millstone, the material and the grinding force of gravity. The frame is a whole vertical mill host to major structural stability of support, which is composed of a base, a bracket, a bottom plate, a connecting bridge and other parts welded component. Coupling is used for connecting different agencies in the two axis (the driving shaft and the driven shaft) mechanical parts so that a common rotation to transfer torque.

Some coupling to the buffer, damping effect when the machine starts up. Roll grinding device comprises a grinding roller shaft, bearings, roller bearing chamber and a cross arm shaft, a grinding ring is fixed on the body, the inner wall is provided with grooves and roller shape anastomosis.

vertical roller mill working principle

Vertical roller mill has many different forms, but its working principle is basically the same. All these forms of machinery with the grinding roller (or the equivalent of the grinding roller grinding parts), grinding roll along the horizontal circular locus motion on the disc, is applied in the vertical pressure roller grinding through external, make the disc material by the combined effect of extrusion and shear, and can crush.

vertical roller mill working principle

Vertical grinding mill working process

The grinding process of materials: The motor drives the disc through the reducer rotating, the material falls from the feed opening disc center, under the action of centrifugal force to the edge of the grinding disc and the grinding roller compacted by moving, the crushed materials left disc, a separator is high speed upward flow is brought to development and vertical mill, coarse powder separator after the return to the disc re grinding.

Fine powder with an air flow mill, collected in the dust collecting apparatus system, namely the product. In the vertical mill in the material through the pneumatic conveying, need the air velocity is larger, it can use the waste heat gas, drying grinding at the same time.

For example, use in production of cement vertical milling machine grinding parts of its various forms, cylinder, cone type, ball, grinding roller surface also have plane, arc, convex surface. Applied to make along the grinding track and material bed close contact roll grinding force in grinding roller has spring pressure, hydraulic pressure and so on.

vertical roller mill structure

  • Below is the structure of the vertical roller mill diagram, which is composed of a separator, roll grinding, grinding, pressure device, reducer, motor, shell and other components. The separator is an important component for ensuring product fineness, it consists of the drive system, rotor, guide vanes, a shell, a coarse powder blanking cone outlet, etc.
  • Vertical Roller Mill Structure
  • The grinding roller is the main components of compacted crushed to the material, which is composed of the roller sleeve and roll heart, axle and bearing and roller bracket etc.. Each friction has 2 ~ 4 grinding roller.
  • Grinding disc is fixed on the reducer shaft, driven by the speed reducer rotating disc.
  • The pressure device is provided an important part of grinding pressure, which is composed of high pressure oil station, a hydraulic cylinder, a pull rod, an energy accumulator and the like, can exert enough pressure to make the material crushing and grinding roller. But the spring pressure device.
  • Reducer should reduce the speed and power transmission, drive disc rotation effect, but also bear the weight of the material and grinding, grinding pressure.
Circulation Characteristics

circulation characteristics

  • 1.Through adjusting the wind ring valve, can change the product fineness, and can make the grinding inside the material bed load is uniform and stable, to improve the grinding efficiency;
  • 2.The coarse particle external circulation, consumption helps to reduce the power consumption of the fan and the whole system.

Vertical grinding mill open order

  • 1. the garage top dust collector
  • 2. raw material conveying system
  • 3. kiln ash conveying system
  • 4. exhaust dust collection system
  • 5. raw mill fan + powder selecting machine
  • 6. raw material circulation system of raw mill
  • 7. raw material mill main motor
  • 8. the feed to the mill
  • 9. external circular silo discharge
  • 10. Mill Spray

Material grinding process:

The grinding roller mill by means of hydraulic pneumatic device for the pressure applied to the material to make the material crushing, grinding materials have is moved to a millstone edge, from the air nozzle of millstone around the ring to ascend to these material ejected in the separator.

Coarse powder after being separated by focus back to the millstone, fine powder is collected in the dust collector discharge. When the gas flow is small, a coarse powder may not be updraft ascend, they pass through the nozzle ring falls discharge grinding, by the bucket elevator conveyor to the feeding device of vertical mill, and fed in the mill grinding people again.

vertical roller mill operation

vertical roller mill operation guidelines

  • 1.grinding operation is mainly the wind, material, power balance between the three, play the best process parameters of vertical grinding mill.
    • a. the wind: from the kiln tail (hot stove waste gas preheating, drying,), lifting function; rely on the mill tail exhaust fan generated ventilation rate and feed amount matches.
    • b. material: ingredients, general use of limestone, Ye Yan (clay), iron three according to a certain proportion into the grinding. The main consideration in grinding particle size, particle grindability, moisture.
    • c. power: grinding pressure from the roller weight, shear force on the material, the material and the material extrusion grinding, lapping pressure size should be matched with the feeding quantity.
  • 2. internal circulation: refers to the material grinding in the disc, after the powder selecting machine after collection, the unqualified products back into the mill, adjust the rotational speed oriented powder machine blade and rotor, so that the qualified materials can timely grinding mill, the effective space saving, avoid the phenomenon of over grinding, improve grinding efficiency.
  • 3. extracellular loop: refers to the material being thrown out from the nozzle ring disc, fall into the scraper cavity material, that is, spit slag. External circulation affect the size of mill feed, the general control within the design capacity of 10%.
  • 4. kiln grinding mill wind: high temperature exhaust gas heat source mainly comes from the kiln, the mill start stop effect on large kiln system (especially stopping time, negative pressure is difficult to control, fluctuation), open stop, the wind moving amplitude to ease ordered.

Technical Data

There are two types of my factory design of the vertical roller mill, one is the LM series of vertical grinding mill, the other one is LUM series ultrafine vertical mill. Different types and models of the mill, and the different uses of the mill, the differences in the technical parameter, in the purchase of the mill, please provide to sales of data shall prevail.

    LM Vertical Grinding Mill Technical Data【Capacity (t/h)】

  • LM130K(10-30t/h)
  • LM150K(13-40t/h)
  • LM190K(23-72t/h)
  • LM220K(36-110t/h)
  • LM130M(10-15t/h)
  • LM150M(16-22t/h)
  • LM170M(20-28t/h)
  • LM190M(26-35t/h)
  • LM220M(35-50t/h)
  • LM130N(5-14t/h)
  • LM150N(7-20t/h)
  • LM170N(8-27t/h)
  • LM190N(9-30t/h)
  • LM220N(18-55t/h)

    LUM Ultrafine Vertical Roller Mill Technical Data【Capacity (t/h)】

  • LUM1125(5-12t/h)
  • LUM1232(7-16t/h)
  • LUM1436(8-18t/h)

vetical roller mill price

Our company has designed a variety of models vertical grinding mill,different models production capacity and other technical parameters are different, the price will be very different, and our factory according to the production needs of users to design the suitable production line, and with the special vertical milling machine.

what influence the grinding mill price ?

The influence factors of the vertical roller mill price mainly include the following aspects:

  • The first is the function of the equipment. Vertical mill function more complete, structure of cost, material cost, high technical cost will directly influence on the market price formation.
  • Secondly, the mill price also by market demand, the law of market value and the oversupply of seeking for less than the price regulation will be opposite mill.
  • Finally, the mill price and equipment type are closely related, different types of vertical mill and its various parameters are not the same, such as rotary diameter, feeding,

The comprehensive comparison of the user to purchase mill to various factors, to find a minimum investment yield the highest vertical mill manufacturers

Vertical roller mill manufacturers

Our company is a professional manufacturer of vertical rolle mill, has many years of the grinding mill production experience, in addition to the production of the classic vertical mill type, also can design high performance vertical mill for the production line for the customer, the operation is more convenient and flexible, make enterprises more competitive. Shanghai SBM is a leading manufacturer of vertical milling machine, has many customers in the mining, construction and chemical industry etc.. SBM also in the production of cement, chemical industry, power plant coal powder with automation solution is well known in the world.

SBM from around the world, highly dedicated staff composition, to ensure customer success and close cooperation. The world state of employees with good professional knowledge and dedication to achieve profitability, to reach a new height, creating veritable service performance in the forward process.

In order to fully understand the influencing factors of the actual situation of the customer service, all over the world to carry out the work of SBM employees are near the place where customers. This makes SBM have unique insights and solutions to create effective, improve production efficiency and environmental quality customer operation mechanism.

SBM using technology and its strong ability of industry knowledge, provide solutions and services for enterprise to bring the most advanced, real and sustainable change, our effort is to make life more beautiful.