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LM Vertical Roller Mill
Input Size:0-70mm
Capacity:3-340TPH
Material:Limestone,calcite,dolomite,petroleum coal,gypsum,barite,marble,talc,coal powder,etc.
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LM Vertical Roller Mill
LM Vertical Roller Mill
Input Size:0-70mm
Capacity:3-340TPH
Material:Limestone,calcite,dolomite,petroleum coal,gypsum,barite,marble,talc,coal powder,etc.
- Description
-
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
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