Main equipment capacity of Sichuan Huili Nickel Ore Concentrator

Huili Nickel beneficiation plant originally Beijing Nonferrous Metallurgy Design Institute of design, scale mining 500t / d, and has annual output of 1,200 tons of high-grade nickel matte crude refineries and other auxiliary production facilities, in the early 1960s simple operation, service life of 10 years. After the increase of geological reserves, the original design was in a difficult period, the factory was simple and the equipment was not matched. In 1964, it was filled and replenished by Kunming Metallurgical Design Institute, and was re-established and put into operation at the end of 65. The mining and selection scale is 500t/d, and the service period is 14 years. The best level of history is 1978, with an average throughput of 556 t/d. The original ore grade is 0.99% and the copper grade is 0.49%.

project

Name and specification

Number of units

Maximum throughput

First, broken mine

Tons/tables·hours

Product granularity

(mm)

Drainage width

(mm)

Ore density

Coarse

PEF 600×900

1

48~50

-150

80~85

Broken

PEF 400×600

1

17~20

-90

65~70

KCД900

1

55~57

-50

15~18

Finely broken

OMДφ900

1

34~36

-18

11~13

1.74

Second, grinding classification

Tons/tables·hours

Feeding granularity

(mm)

Grinding fineness

-200 mesh%

One section

Conical ball mill

Φ2400×1200

3

9.5~10

-18

45~50

Second paragraph

Conical ball mill

Φ2400×1200

1

10~12

-0.92

60~65

Third, flotation

m 3 / ton · day

Working concentration

(%)

Feed concentration

(mm)

One time selection

Rough selection 5A

6

0.0132

40~42

-0.92

Featured 5A

2

0.0043

23~25

Secondary selection

Rough selection 5A

3

0.0132

32~34

-0.272

Featured 5A

1

0.0022

29~31

Three times

Rough selection 5A

6

0.0132

20~22

-0.152

Featured 5A

2

0.0043

18~19

Sweep 5A

46

0.0106

18~19

Decopper

Copper and nickel separated once

2

12 to 16

Second time

1

8~12

Fourth, dehydration

t/m 2

Feed concentration

(%)

Excretion concentration filter and moisture%

Concentrate density

concentrate

Peripheral drive

Φ15M

1

0.35

27~30

60~70

3.4 to 3.6

Copper concentrate sedimentation tank

2

filter

Cylinder filter

(nickel)

10 m 2

2

4.79

50~60

16.5~17

3.4 to 3.6

Cylinder filter

(copper)

10 m 2

1

40~60

13~14

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