Jiangsu Zhongbo Heavy Machinery Co., ltd

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Coal Mill

1.Main bearings are used for sliding bearings for milling equipment. The seal is sealed with a labyrinth compound.
2.Grinding mill has Double high and low pressure dilute gas station for lubrication of main bearing.
3.Special designed slow speed transmission device, for overhaul and start.
4.Oil mist lubrication, more reliable, extending the service life of the gear, save oil.

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Product Details

Coal Mill Introduction:

Coal mill is made up of the feeding device, main shaft, rotating part, gearing, feed and discharging device, high pressure starting equipment and lubrication system is used to grind and dry coal with different hardness. Its features are include reasonable structure and high grinding efficiency which make it the ideal coal dust making machine. Coal Mill is widely applied in the industries of cement construction materials, thermal power generation, metallurgy industry and chemical engineering.


Technical Parameters:

Model

Shell rotation speed (r/min)

Ball load (t)

Feeding size (mm)

Discharging size (mm)

Capacity (t/h)

Motor power (kw)

Weight (t)

Ø900*1800

36-38

1.5

<=20

0.075-0.89

0.65-2

18.5

4.6

Ø900*3000

36

2.7

<=20

0.075-0.89

1.1-3.5

22

5.6

Ø1200*2400

36

3

<=25

0.075-0.6

1.5-4.8

30

12

Ø1200*3000

36

3.5

<=25

0.074-0.4

1.6-5

37

12.8

Ø1200*4500

32.4

5

<=25

0.074-0.4

1.6-5.8

55

13.8

Ø1500*3000

29.7

7.5

<=25

0.074-0.4

2-5

75

15.6

Ø1500*4500

27

11

<=25

0.074-0.4

3-6

110

21

Ø1500*5700

28

12

<=25

0.074-0.4

3.5-6

130

24.7

Ø1830*3000

25.4

11

<=25

0.074-0.4

4-10

130

28

Ø1830*4500

25.4

15

<=25

0.074-0.4

4.5-12

155

32

Ø1830*6400

24.1

21

<=25

0.074-0.4

6.5-15

210

34

Ø1830*7000

24.1

23

<=25

0.074-0.4

7.5-17

245

36

Ø2100*3000

23.7

15

<=25

0.074-0.4

6.5-36

155

34

Ø2100*4500

23.7

24

<=25

0.074-0.4

8-43

245

42

Ø2100*7000

23.7

26

<=25

0.074-0.4

8-48

280

50

Ø2200*4500

21.5

27

<=25

0.074-0.4

9-45

280

48.5

Ø2200*6500

21.7

35

<=25

0.074-0.4

14-26

380

52.8

Ø2200*7000

21.7

35

<=25

0.074-0.4

15-28

380

54

Ø2200*7500

21.7

35

<=25

0.074-0.4

15-30

380

56

Ø2400*3000

21

23

<=25

0.074-0.4

7-50

245

54

Ø2400*4500

21

30

<=25

0.074-0.4

8.5-60

320

65

Ø2700*4000

20.7

40

<=25

0.074-0.4

12-80

400

94

Ø2700*4500

20.7

48

<=25

0.074-0.4

12-90

430

102

Ø3200*4500

18

65

<=25

0.074-0.4

-----

800

137


Working Principle:

When it working, materials are fed by the feed device to the charging equipment of the coal mill and at the same time the hot air with the temperature of 300 degree will enter the charging device via the blast pipe. In the drying cabin there is a specially made lifting blade which can raise the raw coal to be dried with the exchange of heat. The dried materials enter the powder grinding cabin through the double layer separating board. There is a grinding body (a steel ball) installed in the cabin and the coal briquette will be crushed and ground to powder. Then the specialized induced draft fan will bring the crushed coal powder and air out from the coal mill via the discharging device and the coarse particles will return to the powder grinding cabin through the reverting spiral device for deep grinding.

image005.jpg


Features:

1.Main bearings are used for sliding bearings for milling equipment. The seal is sealed with a labyrinth compound.

2.Grinding mill has Double high and low pressure dilute gas station for lubrication of main bearing.

3.Special designed slow speed transmission device, for overhaul and start.

4.Oil mist lubrication, more reliable, extending the service life of the gear, save oil.

5.Chute feeding & Air-swept discharge.


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