LM Vertical Grinding Mills

LM Vertical Grinding Mills

As a professional mining equipment manufacturer, SBM provides ideal grinding mill for customers. Our ideal grinding mill is widely used in mining industry in India. LM Vertical Grinding Mills absorb the advanced international technology which integrate crushing, drying, grinding and grading conveyor altogether.

Service online
  • +86-21-58386189
  • +86-21-58385681

  • Small occupation area and low investment cost with great performance

    The mill integrates crushing, drying, grinding and grading conveyor altogether with compact layout, which covers about 50% of ball milling system. Low energy consumption, greatly reduces the investment costs.

  • Good stability and high reliability

    Since the rollers don't contact with the disc directly when working, and the grinding rollers and the liner are made ​​of high quality material, so the mill is with long service time and less wear. It's passing ratio reaches 99%.

  • High degree of automation

    The electric control system adopts centralized controlled, so the mill is with high degree of automation. As a result there is no need of people in the operating room.

  • Good final products quality

    The materials stay in the mill with short residence time, so it is easy to detect and control the product particle size and chemical composition. Ensuring the quality of the final product by reducing duplication of milling.

The motor drives the grinding table through decelerator. The materials fall down the center of grinding table from feed opening. At the same time, hot air comes into the mill from the air inlet. Due to the centrifugal force, materials move to the edge of the grinding table. The materials are pulverized by the roller when passing through the groove on the grinding table. The crushed materials are brought up by vane high-speed airstream, the larger particles fall down to the grinding table for regrinding. When the materials in the airstream pass the separator on the top of the mill, the coarse powder fall down the grinding table for regrinding under the function of rotation rotor. The fine powder comes out with the airstream, and is gathered by the dust catcher. The materials content with moisture will be dried when they meet the hot airstream. Through adjusting the temperature of the hot airstream, it can meet different material’s requirement, and also through adjusting separator, it can reach proper fineness of materials.

Model LM130K LM150K LM170K LM190K LM220K LM130M LM150M LM170M LM190M LM220M LM130N LM150N LM170N LM190N LM220N
Wheel diameter(mm) 1300 1500 1700 1900 2200 1300 1500 1700 1900 2200 1300 1500 1700 1900 2200
Output (th) 10-30 13-40 18-57 23-72 36-110 10-15 16-22 20-28 26-35 35-50 5-14 7-20 8-27 9-30 18-55
Finish fineness µm 170-45 170-45 170-45 170-45 170-45   170-45 170-45 170-45 170-45 170-45
Mesh 80-325 80-325 80-325 80-325 80-325   80-325 80-325 80-325 80-325 80-325
Coal powder fineness (R0.08)   5-20% 5-20% 5-20% 5-20% 5-20%  
Coal powder moisture (%)   <1% <1% <1% <1% <1%
End product moisture (%) ≤1% ≤1% ≤1% ≤1% ≤1%   ≤1% ≤1% ≤1% ≤1% ≤1%
Grinding material particle size D80 (mm) <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
Grinding material max feed size(mm) <38 <40 <42 <45 <50 <38 <40 <42 <45 <50 <38 <40 <42 <45 <50
Moisture of grinding material not to dry (%) <4% <4% <4% <4% <4%   <4% <4% <4% <4% <4%
Material moisture of into mill (%)   <15% <15% <15% <15% <15%  
Moisture of grinding material need to dry (%) 4%-15% 4%-15% 4%-15% 4%-15% 4%-15%   4%-15% 4%-15% 4%-15% 4%-15% 4%-15%
Into mill air temperature (℃) <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350
Out of the mill air temperature (℃) 70-95 70-95 70-95 70-95 70-95 75-95 75-95 75-95 75-95 75-95 70-95 70-95 70-95 70-95 70-95
Raw coal hardgrove grindability index (HGI)   >55 >55 >55 >55 >55  
Main motor power (kw) 200 280 400 500 800 185 250 315 400 500 200 280 400 500 800
Contour dimension Length (mm) 5520 6550 7170 7580 8080 5520 6550 7170 7580 8080 5520 6550 7170 7580 8080
Width (mm) 2500 3070 3460 3320 4660 2500 3070 3460 3320 6700 2500 3070 3460 3320 4660
Height (mm) 7060 7560 8300 8960 9020 7060 7560 8300 8960 9020 7060 7560 8300 8960 9020

 This products public has a grinding device, including drive system and grinding device, grinding device including can relative rotating grinding of grinding disc and plate disc; grinding disc by drive system drive in level direction rotating, plate disc can demolition hanging and and grinding disc grinding tie; grinding artifacts through bolt fixed in Institute millstone Shang; plate disc through installation frame Shang of installation hole can demolition hanging, installation hole in vertical direction has many Yu 2 a, installation frame through joint bearing hanging. Abrasive fixed to the plate for this product on the plate clamp plate through the mounting holes on the mounting bracket suspension and cooperating with workpiece lapping, different plate can be adjusted through the mounting hole installation state; mount upper end joint bearing suspension for easy abrasive removal, and connection structure of spherical plain bearings are enable by install suspension plate disk grinding and abrasive and workpiece have a good fit. Driving system adjustable grinding speed adapted to different needs.

 
Surface mining machinery production often have metal-wear, the General requirements of wear surfaces with low roughness in order to reduce friction and wear. For example, cone Crusher on a bronze plate and upper and lower surface roughness of steel and other metal pieces required small, processing surface requires grinding to improve its performance. At present, the bronze plate and upper and lower steel plates are mostly manual and manual grinding, grinding out lines very uneven, hard not only to meet the requirements and are less efficient.
 
Existing processing equipment does not meet the processing needs of metal abrasive surface in mining machinery, due to the large volume required for processing of metal parts, fixing is not convenient, in processing also requires regular replacement abrasives, abrasive is fixed, abrasive meet the need of lapping process constantly rotating and grinding problems such as the need to design a new grinding device.
 
This product is based on the lack of prior art discloses a grinding device, this product to solve the problem is to provide a way to easily switch to a different purpose abrasive, steady and even grinding device for metal grinding.
 
This product provides the following ways to implement:
 
Grinding machines, including drive systems and ground equipment, and is characterized by: the grinding device consists of a rotary abrasive grinding wheel and clamp plate grinding wheels driven by the drive system in the horizontal direction, pressure plate tray removable hanging with grinding wheels grinding and cooperate with grinding workpieces through bolted to the Institute on the disc.
 
Platen plate described through the mounting holes on the mounting bracket with removable hanging, not less than 2 mounting holes in the vertical direction, spherical plain bearing mounts through suspension.
 
The drive system consists of a driving motor, gearbox and gearbox driven by a pair of bevel gear, bevel connection drive shaft connected to the grinding disc drive Rotary grinding.
 
When above ground workpiece during grinding tray, multiple grinding workpiece fixing bolts to the side through a grinding disk does not affect the abrasive surface abrasive machining, grinding discs with the drive unit speed rotation of workpiece and tool rotation to achieve ground. Abrasive fixed to the plate on the plate clamp plate through the mounting holes on the mounting bracket suspension and cooperating with workpiece lapping, different plate can be adjusted through the mounting hole installation status. Install upper bearing suspension for easy abrasive removal, and connection structure of spherical plain bearings are enable by install suspension plate disk grinding and abrasive and workpiece have a good fit. Driving system adjustable grinding speed adapted to different needs.
 
To sum up, this product has a simple structure, convenient operation, improve the efficiency of grinding, fixed suspension structures, artifacts and driving the device to achieve a stable and high abrasive machining requirements.

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