Shanghai SBM is the professional vertical roller mill manufacturer
The vertical roller mill has two hot sale models, namely the LM series vertical grinding mill and LUM series ultrafine vertical roller mill.
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..
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.
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.
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.
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 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.
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.
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.
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.
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.
The influence factors of the vertical roller mill price mainly include the following aspects:
The comprehensive comparison of the user to purchase mill to various factors, to find a minimum investment yield the highest vertical 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.