Large single-tank pneumatic mechanical agitation flotation machine was successfully developed

"160M3 large-scale inflatable mechanical agitation flotation machine research" is an important research content of the National Science and Technology Research Program of the Ministry of Science and Technology. The Beijing Mining and Metallurgical Research Institute and Jinchuan Group Co., Ltd. have been researching and developing independently after several years of hard work. Successfully completed the "160M3 large inflatable mechanical agitation flotation machine" and successfully completed the industrial application test.

A few days ago, the China Nonferrous Metals Industry Association organized experts to conduct technical appraisal of the results. On the basis of carefully reviewing relevant technical materials, listening to reports, and questioning and replying, the experts of the appraisal committee unanimously believe that the overall performance of the equipment has reached the international advanced level and is innovative in the following aspects:

1) The impeller-stator has a unique structure. The impeller adopts a high-ratio number of backward-inclined blades, a large circulation low-pressure head, a sufficient slurry suspension, and uniform distribution of ore particles; a low-damping direct-suspended stator with a stable radial flow;

2) Double foam tank and double push bubble cone structure, the inner foam tank has the function of pushing foam to ensure the smooth discharge of flotation foam in time, which is beneficial to shorten the foam conveying distance and increase the foam thickness, and the foam layer is stable;

3) The pre-distribution directional flow air distributor is unique, the air dispersion is uniform, the flow path of the aerated slurry mixture is reasonable, the bubble surface area is large, and the flotation efficiency is high;

4) The slurry level and aeration amount of the equipment are automatically controlled, the operation is convenient, the operation is stable, the index is stable, and the energy saving effect is obvious. At the same time, the results also enriched and improved the similar amplification theory of large flotation machines, laying a theoretical foundation and practical basis for the optimization of the whole series of new flotation machines and further improving equipment reliability.

The successful development of this equipment indicates that the research and development level of China's super large-scale mineral processing equipment has been ranked among the international advanced, which has significantly improved the research and development capabilities of China's mining equipment. It is of great significance to promote the modernization of China's mines, improve resource utilization, and enhance the competitiveness of the international market.

Experts hope to speed up the promotion and application of this achievement, and to form a series of equipment as soon as possible in response to the needs of mines in China.

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Technical parameters for  EN818-2 g80 alloy steel welded chain as below :

SIZE

NORMINAL DIAMETER

WIDTH

WEIGHT/M

WORKING LOAD

TEST LOAD

BREAKING FORCE

MM

IN

AMIN

BMAX

KG/M

T

KN

KN

6*18

6

7/32

7.5

21

0.79

1.1

27

45.2

8*24

8

5/16

10

28

1.38

2

48

80.4

10*30

10

3/8

12.5

35

2.2

3.2

76

125

12*36

12

7/16

15

42

3.1

4.6

109

181

14*42

14

1/2

18

49

4.13

6.3

150

250

16*48

16

5/8

20

56

5.63

8

192

320

18*54

18

23/32

23

63

6.85

10

246

410

20*60

20

3/4

25

70

8.6

12.5

300

500

22*66

22

7/8

28

77

10.2

15.3

366

610

24*72

24

15/16

32

82

12.78

18

432

720

26*78

26

1

35

91

14.87

21.3

510

850

30*90

30

19/16

38

105

19.6

28.3

678

1130

32*96

32

5/4

40

106

22.29

32.2

772

1286

34*102

34

11/8

46.5

121.5

25.5

36.3

870

1450

36*108

36

23/16

49.5

128.5

31

40.7

978

1630

38*114

38

3/2

52

136

32

45.3

1086

1810

42*126

42

13/8

55.5

144.5

38.6

55.4

1332

2200



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