MTW Series Grinding Mill

Application:

Limestone, calcite, marble, talcum, barite, gypsum, lime, coarse whiting, attapulgite,dolomite, coal, feldspar, quartz, graphite, coal gangue, fluo

Product description:

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 absorbing the European advanced technology and many engineers’ ripe experience.

 

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 need 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 time, 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:

Type

MTW110

MTW138

MTW175

Quantityofroller
(PCS)

4

4

5

Innerdiameterofring
(mm)

1100

1380

1750

Rotaryspeedofmainframe
(r/min)

120

96

75

Max.Feedingsize
(mm)

<30

<35

<40

Outputsize
(mm)

1.60.045
Thefinenessis0.038

1.60.045
Thefinenessis0.038

1.60.045
Thefinenessis0.038

capacity
(t/h)

3.510

6.515

1125

Over alldimension
(mm)

842579338642

9860854010227

1218288359916

Total weight
(t)

18

28.5

46

Name

Item

Unit

Technicaldata

MTW110

MTW138

MTW175

Motor of main frame

Type

 

Y280M-6

Y315M-6

Y355M1-6

Power

kw

55

90

160

Rotatespeeding

r/m

980

990

990

Adjus table
motor of classifier

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

1251250

1251250

1251250

Motor of centri fuga
lind ucedd
raft fan

Type

 

Y250M-4

Y280M-4

Y315L2-4

Power

kw

55

110

200

Rotatespeed

r/m

1480

1480

1480

Auxiliary
machine

Elevator

Type

 

TH250

TH315

TH315

Typeofmotor

 

Y100L2-4

Y100L2-4

Y112M-4

Power

kw

3

3

4

Rotatespeed

r/m

1430

1440

1440

Jaw
crusher

Type

 

PE250400

PE250750

PE250750

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


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