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LM Vertical Roller Mill
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LM Vertical Roller Mill

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Product description
Parameters

Input Size: 0-70mm

Capacity: 3-340TPH

Material: Limestone, calcite, dolomite, petroleum coal, gypsum, barite, marble, talc, coal powder, etc.

Working Principle

The grinding plate rotates under the action of main motor of LM Vertical Grinding Mill and the reducer. Meanwhile, hot wind enters the vertical mill. After raw materials fall onto the center of grinding plate, they move to the edge of grinding plate under the action of centrifugal force. While passing through the grinding area between roller and grinding plate, bulky materials are broken directly by the pressure of roller while fine materials form a layer where materials crush each other. Broken materials after grinding continue moving to the edge of grinding plate until they are brought away by the airflow at the air ring. For coarse materials which cannot be brought away would fall onto the grinding plate for another grinding. When passing the upper separator, materials in the air flow will be divided into two parts by the blades of rotor, that is, coarse particles and fine powders. Coarse particles would be sent back to have another grinding while the qualified fine powders enter the powder collector with airflow as finished products. For sundries like iron block in materials, when they move to the fringe of grinding plate, because of their heavier weight, they would drop to the lower cavity of grinding mill and next be sent into the discharging port by scarper installed at the bottom of grinding plate and finally be discharged out of the grinding mill.

Features

1.Low running costs

It adopts the technology that vertical roller grind material directly on the disc, with low energy consumption; for the roller is not contact with the disc directly in the work, and the roller and liner are made by quality materials, it is of less wear and long life.

2.Simple and reliable operation

Its automatic control system can reach remote control, which is easy to operate; there is the device to prevent roller sleeve contact with disc liner directly, and avoid the destructive impact and severe vibration; we can turn the rotating arm by repairing fuel tank, replace the roller and liner are more convenient, which can reduce the downtime.

3.Energy conservation and environmental protection

It features small vibration, low noise, and sealing device as a whole, and the system also works with no pressure and dust spills.

Technicaldata

Vertical Mineral Mill Series

Model

LM80K

LM110K

LM130K

LM150K

LM170K

LM190K

LM220K

LM240K

LM280K

LM340K

LM370K

Wheel diameter(mm)

800

1100

1300

1500

1700

1900

2200

2400

2800

3400

3700

Output (th)

4-10

5-15

10~28

13~38

18~48

23~68

36~105

40-130

50~170

80-240

120-300

Finish fineness

μm

170-45

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

80-325

End product moisture (%)

≤1%

≤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

Grinding material max feed size(mm)

<20

<25

<38

<40

<42

<45

<50

<50

<50

<70

<70

Moisture of grinding material not to dry (%)

<4%

<4%

<4%

<4%

<4%

<4%

<4%

<4%

<4%

<4%

<4%

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%

4~15%

Into mill air temperature (℃)

<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

70~95

70~95

70~95

70~95

70~95

70~95

Main motor power (kw)

55

110

200

280

400

500

800

1000

1250

1800

2500

Vertical Coal Mill Series

Model

LM80M

LM110M

LM130M

LM150M

LM170M

LM190M

LM220M

LM240M

LM280M

LM340M

Wheel diameter(mm)

800

1100

1300

1500

1700

1900

2200

2400

2800

3400

Output (th)

3-5

7-10

10-17

16-22

20-30

26-40

35-45

50-70

70-90

100-140

Coal powder fineness (R0.08)

5~20%

5~20%

5~20%

5~20%

5~20%

5~20%

5~20%

5~20%

5~20%

5~20%

Coal powder 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

Grinding material max feed size(mm)

20

25

<38

<40

<42

<45

<50

<50

<50

<50

Material moisture of into mill (%)

<15%

<15%

<15%

<15%

<15%

<15%

<15%

<15%

<15%

<15%

Into mill air temperature (℃)

<350

<350

<350

<350

<350

<350

<350

<350

<350

<350

Out of the mill air temperature (℃)

75~95

75~95

75~95

75~95

75~95

70~95

75~95

75~95

75~95

70~95

Raw coal hardgrove grindability index (HGI)

>55

>55

>55

>55

>55

>55

>55

>55

>55

>55

Main motor power (kw)

45

90

185

250

315

400

500

630

900

1400

Vertical Slag Mill Series

Model

LM130N

LM150N

LM170N

LM190N

LM220N

LM240N

LM280N

LM340N

LM370N

Wheel diameter(mm)

1300

1500

1700

1900

2200

2400

2800

3400

3700

Output (th)

5-14

7-20

9-27

12-30

18-55

25-60

40-90

60-120

70-160

Finish fineness

μm

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

Slag fineness (㎡/kg)

420

420

420

420

420

420

420

420

420

End product moisture (%)

≤1%

≤1%

≤1%

≤1%

≤1%

≤1%

≤1%

≤1%

≤1%

Grinding material particle size D80 (mm)

<10

<10

<10

<10

<10

<10

<10

<10

<10

Grinding material max feed size(mm)

<38

<40

<42

<45

<50

<50

<50

<70

<70

Moisture of grinding material not to dry (%)

<4%

<4%

<4%

<4%

<4%

<4%

<4%

<4%

<4%

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%

Into mill air temperature (℃)

<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

70~95

70~95

70~95

70~95

Main motor power (kw)

200

280

400

500

900

1120

1800

2500

3150

 

We could not find any corresponding parameters, please add them to the properties table

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