ball mill

Ball Mill Application

Limestone, calcite, barite, dolomite, potassium feldspar, marble, talcum, gypsum, kaolin, bentonite, medical stone, rock phosphate, manganese ore, iron ore, quartz, active carbon, carbon black, ceramic, coal, ect.

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Email: sales@hiimac.com

Ball Mill

Ball mill, an energy-saving grinding device, is widely used in mineral processing, building materials and chemical industries. It grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the ball mill machine. The larger the diameter is, the slower the rotation is. If the peripheral speed of the ball grinding mill is too great, it begins to act like a centrifuge and the balls do not fall back, but stay on the perimeter of the mill.

Ball mill is the key equipment for re-crushing the materials after they are primarily crushed. Ball mill is widely used for the dry type or wet type grinding of all kinds of ores and other grind-able materials in cement, silicate product, new building material, refractory, fertilizer, black and non-ferrous metals and glass ceramic industry.


Ball Mill Machine Structure

Ball Mill machine is composed by feeding part, discharging part, turning part and driving part (reducer, small driving gear, electric motor and electric control). The quill shaft adopts cast steel part and the liner is detachable. The turning gearwheel adopts casting hobbling process and the drum is equipped with wear-resistant liner, which has good wear-resistance. The ball grinding mill is with stable and reliable working condition. Moreover, according to different materials and discharging methods, there are dry ball mills and wet ball mills for choice.

Ball Mill Application

Ball mills are the key equipment for grinding after the crushing process, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grind-able materials. To achieve a reasonable efficiency with ball grinding mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills.


Working Principle of Ball Mill

This machine is a horizontal type cylinder rotary device and outside the cylinder there is drive gear which drives the cylinder to rotate during the working process. Materials spirally and evenly go into the first cabin of the grinding machine through the feeding hollow shaft from the feeding device, and inside the first cabin, there are ladder lining boards or ripple lining board in which there are many steel balls with different specifications. The cylinder rotates and produces eccentric force to bring the steel balls to a certain height, and then the steel balls will fall down to impact and grind the materials. After being coarsely ground in the first cabin, the materials will go through the single-layer partition board and into the secondary cabin in which there are flat lining board, and in the lining board there are steel balls to further grind the materials. Finally the powdery materials will be discharged from the discharging grating bar to complete the powder grinding process.

Ball Mill Features

·  Continuous operation and large capacity.

·  High utilize ratio and low consumption of modifying agent

·  With the function of modifying and dispersion, it fits for various powders.

·  High modifying efficiency without changing the granulate shape.

·  Excellent sealing system, no environment pollution

·  All works are finished in one machine, easy to operate.

Model

Shell rotation speed
(r/min)

Ball load
(t)

Feeding size
(mm)

Discharging size
(mm)

Capacity
(t/h)

Motor power
(kw)

Total weight
(t)

Ф900×1800

36-38

1.5

≤20

0.075-0.89

0.65-2

18.5

5.5

Ф900×3000

36

2.7

≤20

0.075-0.89

1.1-3.5

22

6.7

Ф1200×2400

36

3

≤25

0.075-0.6

1.5-4.8

30

12

Ф1200×3000

36

3.5

≤25

0.074-0.4

1.6-5

37

12.8

Ф1200×4500

32.4

5

≤25

0.074-0.4

1.6-5.8

55

13.8

Ф1500×3000

29.7

7.5

≤25

0.074-0.4

2-5

75

16.8

Ф1500×4500

27

11

≤25

0.074-0.4

3-6

110

21

Ф1500×5700

28

12

≤25

0.074-0.4

3.5-6

130

25.8

Ф1830×3000

25.4

11

≤25

0.074-0.4

4-10

130

29

Ф1830×4500

25.4

15

≤25

0.074-0.4

4.5-12

155

35.5

Ф1830×6400

24.1

21

≤25

0.074-0.4

6.5-15

210

43

Ф1830×7000

24.1

23

≤25

0.074-0.4

7.5-17

245

43.8

Ф2100×3000

23.7

15

≤25

0.074-0.4

6.5-36

155

34.8

Ф2100×4500

23.7

24

≤25

0.074-0.4

8-43

245

42

Ф2100×7000

23.7

26

≤25

0.074-0.4

8-48

280

56.6

Ф2200×4500

21.5

27

≤25

0.074-0.4

9-45

280

51.8

Ф2200×6500

21.7

35

≤25

0.074-0.4

14-26

380

60

Ф2200×7000

21.7

35

≤25

0.074-0.4

15-28

380

62

Ф2200×7500

21.7

35

≤25

0.074-0.4

15-30

380

64.8

Ф2400×3000

21

23

≤25

0.074-0.4

7-50

245

58

Ф2400×4500

21

30

≤25

0.074-0.4

8.5-60

320

69

Ф2700×4000

20.7

40

≤25

0.074-0.4

12-80

380

94

Ф2700×4500

20.7

48

≤25

0.074-0.4

12-90

480

102

Ф3200×4500

18

65

≤25

0.074-0.4

As per process conditions

630

137

Ф3600×4500

17

90

≤25

0.074-0.4

As per process conditions

850

158

Ф3600×6000

17

110

≤25

0.074-0.4

As per process conditions

1250

175

Ф3600×8500

18

131

≤25

0.074-0.4

45.8-256

1800

252

Ф4000×5000

16.9

121

≤25

0.074-0.4

45-208

1500

203

Ф4000×6000

16.9

146

≤25

0.074-0.4

65-248

1600

218

Ф4000×6700

16.9

149

≤25

0.074-0.4

45-252

1800

238

Ф4500×6400

15.6

172

≤25

0.074-0.4

54-306

2000

280

Ф5030×6400

14.4

216

≤25

0.074-0.4

68-386

2500

320

Ф5030×8300

14.4

266

≤25

0.074-0.4

88-500

3300

403

Ф5500×8500

13.8

338

≤25

0.074-0.4

108-615

4500

525

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