??????????????? ???è¥???°??o???é??é?????é?????èˉ?éa?-??-?????????114??? ???
?????????o?????????????????a?
2018-09-20
?????????o?????o????????2??2????,???0. 1 mm ?2??o|????o???,+0. 10 mm ?2??o1 ?2?1 ?2?????o? ???????????????????o???42. 16%???TiO2 ??????4. 00% ??????????????;??????2????-0. 4 mm ?2??o????12???? ??a??1 ?2?2 ?2?????????????TiO2 ??????47. 36%????????????25. 29%??????2????;+0. 4 mm ?2??o??????2?????????? ????-??????????????-0. 10 mm ?2??o?????????????a??1 ?2?2 ?2??-???????????, ???????TiO2 ?????? 47??? 01%????????????52??? 88%???????????2????,?????????????????,??????o??????2??2???????????????????,????????o ??????????1??????

?????????????o??????[1]??????|??????????????????o????????23?????????1???????????-???????????-90%???????????????????????????????????????????o??????????????????a????????????a????????????a???????1?3????????????????????[2-3]?????????o?????????????????????????????????????1?3?????????????????????-??????????[4-5]?????????????o????????o????????2??2??????????0.18mm????o??????????-??????????????????-??????????o??????o???????????????o???????????????-????o??????o????2?????????1????????o????2?????????3?13????????2a??3??a????????1??????????????|????????6??a????????1?????????+0.154mm?2??o??-????????|??o|???????????????1???????o?????????????-??????1????????o????2????????????????????????????'???????????????o??????o????????????????????????o?????o??????2????2??????o?????????????????-?????-????????????????????????????????-???????????????o?????????o???????????????????????????????????

1 ??a???????

1.1???????2??o|?????????TiO2??????

?1??a????????2??o|???????-????

Table 1  The result of particle size analysis of crude concentrate of limenite

?2??o/mm

-1.00

+0.40

-0?40

+0.28

-0.28

+0.180

-0.18

+0.154

-0.15

+0.10

-0?10

+0?074

-0.074

+0?043

-0.043

+0?038

-0.038

?????

?o???/%

6.80

8.80

16.70

18?40

8.00

19.50

11.70

2.70

7?40

100.00

TiO2??????/%

5.50

6?86

12.18

21?69

21?74

23?60

20.32

20?18

20?79

17.80

????????/%

2?10

3.39

11?42

22.42

9.77

25.85

13?35

3?06

8.64

100.00

????-????????????????????????????????a?2??o????????????????????????o????????????????????????????????????a???????2??o??????????????????+0?28mm?2??o?????????????????????????????????????1?????????-0?28+0?10mm?2??o???-0?10mm?2??o??????????????????????????????o43?61%???50?90%???

1?2??a?????????????????????

?2??a???????????????????????????

??????????

????3

?????????

???????

??????????

?????

????/???

59?49

1?69

29.81

9.01

100.00



?????????????????????????????????????a?????????-?????????????????o29.81%???????????????????????o9.01%???????3?????????????o59.49%?????????????????????????1.69%???

2??a???1???

?????????????????????????????1?????'???????????????o???a?????????2??2??o???????2??o??????????o?????????2??2??o????????????????????a????????2??????????????a????????2??o?????????o?TiO2??????????20%?????????????????'????????????????????

3 ??a????????????o

3.1 ??????a?

???o???a?????????-????3??????????????????59.49%??????????3??????????????????????????????????????????????????????????????????????????????????????o????????????a????

3?1?1????o????????a?

?????2??????????????????o??????????a????|?????'???????????o?2??o|???????o????????????a?????????????????2?????2????????????a??????a???????|????1????o?????a?????????3???

 

?3 ????o????????a???????

Table 3 Tabling test results

?2??o|?o???

?o???????

?o???/%

TiO2??????/%

???2??o

?2????

18.62

44.21

??-???

40.80

10.21

?????

40?58

10.61

??????

100.00

17.11

-1?0--+0?1

?2????

20?25

40?71

??-???

37.59

14.37

?????

42?16

4.00

??????

100.00

15?33

-1.0--+0.074

?2????

20?35

44?32

??-???

41.33

15.36

?????

38?32

4.25

??????

100.00

17?00

-1.0--+0.043

?2????

20.45

42.32

??-???

42.46

15.36

?????

37.09

6.42

??????

100.00

17?48

?????a??????????????????????????????????????????????????????????????0.1mm????????o??????????????????3???

3.2???????a?

 ??-1?0--+0?1mm?2??o?????????????????o???a??????????????????2?????????-????????????o???????????????????????a???????o????????o??1??????2??o|???|??????????????????--1?0--+0?4????????????????????????????????????????a????-1?0+0?4mm?2??o??????????????o?????-???????a?????????????

?????????????????????|????????-?????????????????????????????????????????????o|???????????a????|?????'?????-?????????????????????1??????????????????????

3.2.1  ????-???????a?

???o?????????-?????????????????????????1????????????????????????????????12?????????????????-0?40+0?10mm?2??o?????????????????a???????????2????2?????????????????a???????a?????1??????2???????-???????1??a??????????????a???????|????2????o?????a?????????4?

?4  ???????a???????

Table 4  electrical test results

?2???????

?o???????

?o???/%

TiO2??????/%

230r/min

????2?

30?37

47.35

??-???

19?69

40?56

?????

49.94

5?34

??????

100.00

25.03

200r/min

????2?

26.45

47?91

??-???

24.32

37.10

?????

49.23

6.75

??????

100.00

25?02

180r/min

????2?

23.67

48.33

??-???

24.75

41?31

?????

51.58

6?89

??????

100.00

25.22

?????a???????????????????????2????????????????????2??????????????47%???????????????2????????????????2????????????????????????????????????????????????2?????????230r/min?????????????

3.2.2 ?????????????a?

??????????????????????????????'?????????-???????a????????????o????2???????-???????o230r/min??????????????????????30kv???34kv???38kv 3??a????????a??????a???????|????2????o?????a?????????5?

 

?5  ???????a???????

Table 5  electrical test results

??a???????

?o???????

?o???/%

TiO2??????/%

30kv

????2?

30.37

47.35

??-???

19.69

40.56

?????

49.94

5.34

??????

100.00

25?03

34kv

????2?

28.64

47.53

??-???

20.87

39.85

?????

51?49

5?96

??????

100.00

25?00

38kv

????2?

27.69

48.23

??-???

21?32

41.12

?????

50?99

5.86

??????

100.00

25.11

?????a???????????????? ????????????????????????????2?????????????????????????1??????????????????????????????????????????????????30kV??o???????????????????????????

3?3  ???????a?

?????????????2????2????????????????a??????a????|?????'??2??????????????????????????????1???????????????????????a???????|????3????o??? 

 

3.3.1????????????????

????????????13????????????????????--1?0+0?4?2??o??????????-??????1:1??????????????????????????3-200??????50%????????????????????--0?1mm?2??o????????????1:3???????????????a????

3.3.2 ???????????a?

???????????????????????????2?????a?,??o????????????MOH????1800g/t?????????????H2SO4???????800g/t???1000g/t???1300g/t???1500g/t 4??a??????a????????????????|??6????o???

?6???????a???????

Table 6  Flotation test results

?????????/g/t

?o???????

??????/%

?o???/%

?2?????????????/%

800

?2????

29?43

75.16

95?31

?????

4.12

26?44

??????

23.21

100.00

1000

?2????

33.66

66?62

95?32

?????

3.30

33?38

??????

23.24

100.00

1300

?2????

36.39

57?16

90?04

?????

5?37

42.84

??????

23.10

100.00

1500

?2????

39.66

51.87

88?00

?????

5.81

48.13

??????

23.36

100?00

????a???????????????????????????????????????????2????????????????????????????????????????????????????????2????????????????????????????????????????2?????????????????o1000g/t?????????????

3?3?3???????????????a?

??o??????????????o1000g/t?????????????????????????MOH???????1200g/t???1500g/t???1800g/t???2200g/t 4??a????????a??????a????????|??7????o???

?7???????a???????

Table 7  Flotation test results

MOH????/g/t

?o???????

??????/%

?o???/%

?2?????????????/%

1200

?2????

46.52

38?48

76.38

?????

9?00

61?52

??????

23?44

100.00

1500

?2????

42?66

49.26

89.17

?????

5.03

50.74

??????

23.57

100.00

1800

?2????

33.66

66?62

95.32

?????

3?30

33?38

??????

23?52

100.00

2200

?2????

30.65

71?56

94?38

?????

4?59

28.44

??????

23.24

100.00

????a??????????????????????????????????????????????TiO2???????????????????2????2?????????????????????????????2????2??????????????????????????????????????1000g/t???????????????????????????o1800g/t?????????????????3??????????o????????-???a????

3.4 ?????????a?

????????o????????????a??????o???????????o??????????a??????a???????|????4????o?????a?????????8?

?8 ???????a???????

Table 8  Flotation test results

?o???????

?o???/%

TiO2??????/%

?????????/%

??????2????

9?53

47.35

25.29

??????2????

20.07

47?01

52.88

?????

70?40

5.53

21?82

??????

100?00

17.84

100.00


 

6????o

???1?????a??????????0.1mm????o??? +0.1mm?2??o??????????????????????????2??????????????????????????o?????o9.53%???????????o47.35%?????????2???????-1.0+0.4mm?2??o????????????????-???????????????????3-200???50%??????0.1mm?2??o?????????1:3??????????????????????????o?????o20.07%???????????o47.01%?????????2???????

 


?????????????1?????????????????????????????????????????????o??????????????????2018?1'???8???

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