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Ball mill

絞龍

Ball Mill 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 mill. The larger the diameter, the slower the rotation. If the peripheral speed of the 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. The point where the mill becomes a centrifuge is called the "Critical Speed", and ball mills usually operate at 65% to 75% of the critical speed.

Description

Ball Mill Application

are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball 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. Ball mill is an efficient tool for grinding many materials into fine powder. The ball mill is used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc. There are two ways of grinding: the dry process and the wet process. It can be divided into tabular type and flowing type according to different forms of discharging material.

Ball Mill Features

1) is an efficient tool for grinding many materials into fine powder.
2) The ball mill is used to grind many kinds of mine and other materials, or to select the mine
3) Ball mill is widely used in building material, and chemical industry.
4) There are two ways of grinding: the dry way and the wet way.
5) Ball mill can be divided into tabular type and flowing type according to differentexpelling mine 
6) To use the ball mill, the material to be ground is loaded into the neoprene barrel that contains grinding media.
7) As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder over a period of several hours. 
8) The longer the ball mill runs, the finer the powder will be.
9) Ultimate particle size depends entirely on how hard the material you're grinding is, and the time how long the ball mill runs.

10) Our ball mills have been used to grind glass, powder food products, create custom varnishes, make ceramic glaze, powder various chemicals.

Ball mill Working Principle

The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The ground materials are discharged through the discharging board thus the grinding process is finished.

Specification

Model

Speed of bucket
(r/min)

Weight
of ball

Max Size of
feed opening(mm)

size of outputting
feed (mm)

Production
(t/h)

Power
(kw)

Weight
(T)

900×1800

38

1.5

20

0.075-0.89

0.65-2

18.5

3.6

900×3000

38

2.7

20

0.075-0.89

1.1-3.5

22

4.6

1200×2400

32

3.8

25

0.075-0.6

1.5-4.8

45

12.5

1200×3000

32

5

25

0.075-0.4

1.6-5

45

12.8

1200×4500

32

7

25

0.075-0.4

1.6-5.8

55

13.8

1500×3000

27

8

25

0.075-0.4

2-5

90

17

1500×4500

27

14

25

0.075-0.4

3-6

110

21

1500×5700

27

15

25

0.075-0.4

3.5-6

132

24.7

1830×3000

24

11

25

0.075-0.4

4-10

180

28

1830×6400

24

23

25

0.075-0.4

6.5-15

210

34

1830×7000

24

25

25

0.075-0.4

7.5-17

245

36

2200×5500

21

30

25

0.075-0.4

10-22

370

48.5

2200×6500

21

30

25

0.075-0.4

14-26

280

52.8

2200×7500

21

33

25

0.075-0.4

16-29

475

56

 

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