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MTW Series Grinding Mill

MTW Series Grinding Mill

It is used to mill limestone, calcite, marble, talcum, barite, gypsum, lime, coarse whiting, attapulgite,dolomite, coal, feldspar, quartz, graphite, coal gangue, fluorite, slag, cement clinker, bauxite, kaolin,cement, activated carbon,petroleum coke,coal ash,iron oxide red etc.
OBM series European technology trapezium mill is the lastest grinding mill, which absorbs the European advanced technology and many engineers’ ripe experience.

 

 

Specification
Type

OBM110

OBM138

OBM175

Quantityofroller(PCS)

4

4

5

Innerdiameterofring(mm)

Ф1100

Ф1380

Ф1750

Rotaryspeedofmainframe(r/min)

120

96

75

Max.Feedingsize(mm)

<30

<35

<40

Outputsize(mm)

1.6~0.045Thefinenessis0.038

1.6~0.045Thefinenessis0.038

1.6~0.045Thefinenessis0.038

capacity(t/h)

3.5~10

6.5~15

11~25

Overalldimension(mm)

8425×7933×8642

9860×8540×10227

12182×8835×9916

Totalweight(t)

18

28.5

46

Name

Item

Unit

Technicaldata

OBM110

OBM138

OBM175

Motorofmainframe

Type

 

Y280M-6

Y315M-6

Y355M1-6

Power

kw

55

90

160

Rotatespeeding

r/m

980

990

990

Adjustablemotorofclassifier

Type

 

YCT200-4A(YCT200-4B)

YCT200-4B(YCT225-4A)

YCT225-4A(YCT225-4B)

Power

kw

5.5(7.5)

18.5

30

Rotatespeeding

r/m

125~1250

125~1250

125~1250

Motorofcentrifugalinduceddraftfan

Type

 

Y250M-4

Y280M-4

Y315L2-4

Power

kw

55

110

200

Rotatespeed

r/m

1480

1480

1480

Auxiliarymachine

Elevator

Type

 

TH250

TH315

TH315

Typeofmotor

 

Y100L2-4

Y100L2-4

Y112M-4

Power

kw

3

3

4

Rotatespeed

r/m

1430

1440

1440

Jawcrusher

Type

 

PE250×400

PE250×750

PE250×750

Typeofmotor

 

Y180L-6

Y180L-6

Y200L2-6

power

kw

15

15

22

Rotatespeed

r/m

970

970

970

feeder

Type

 

GZ2F

GZ3F

GZ4F

 

power

w

150

200

450

Features:

Low cost, high efficiency.
1) Bevel gear overall drive: the traditional grinding mill is driven by speed reducer and coupling. It is hard to be installed. And there will be too much noisy, and the efficiency is lower. OBM series mill is driven by bevel gear, so its structure is compacter, easy to be installed and more efficient.
2) Inner automatic Thin-Oil lubricating system: the traditional mill adopts grease lubrication, so the lubricating resistance is stronger, the temperature will be higher soon, the bearing life is shorter. OBM series mill adopts inner L.O.pumps, so the main shaft bearing and bevel gear can be lubricated without an additional lubrication system.
Good stability, high reliability
3) Arc air channel: all of the air channel of traditional grinding mill is upright board type. In this case, there will be stronger resistance when the air impacts the air channel board, and the energy of collisions of air molecules loss heavily, as a result, the air channel will be jammed easily because of the eddy air flow. OBM series mill adopts a cambered air channel, the tangential air goes into air channel easily because there is small resistance. And the inner outlet is very good for the grinded material to spread around and avoid grinding material jammed.
4) Cambered shovel with renewable edge: The traditional shove is integral and edge always be worn out quickly, so you have to renew it in short time which affects the working time and wastes too much steel. The shovel edge of OBM series mill adopts high wearable limit alloy, its life will be longer. You only want to change the edge, not the whole shovel. so the steel material is saved. In addition, because the traditional shovel is plane type, the grinded material stacks on the same plane when it is scooped up. So the middle parts of the roller is worn out heavily. But the cambered shovel can scoop up the grinded material in the same vertical plane, that makes the rollers and ring worn equally. At the same, the grinding efficiency is higher and capacity is higher;
Good product particle size
5) Separated cyclone: There is a separated structure between inner piping and mixed air and powder. The efficiency and precision of classifying is promoted highly;6) No resistance snail shell (small checking door so that there is not an eddy air flow): In the traditional grinding mill, the checking door of snail shell is prominent, that mean the checking door and snail shell are not on the same plane. So there will be eddy air flow easily come into being. As a result, the energy waste is bigger. OBM series mill make the inner surface of checking door stay with the inner surface of snail shell on the same plane, so the eddy air flow is avoided efficiently;

Specification

Crushing Machines

Industrial Grinding Mill

Screening & Washing Machines

Feeding & Conveyor Machines