??????????????? ?£?é????±????¤?è???oˉé???2???????èˉ?éa???????-??-?????????114??? ???
|??? >> ??-???????? >> ???????a???????o >> ???2??????? >> ?-????
???????????????o????2?????????a???????
2018-09-21
????????????????????o66. 12%???????????2??????o??????,????????????o???|??????????,?????o? ???o????2??????????????a??????????o?????????2??????'????????????????-0. 074 mm ?2??o??????????????????a????? ?????????????????????,?????????????o?????oa???????a????????2???a??????????2?????????o?????,?????o??????????? ??o71. 64%??????????????o81. 87%??????o????2??????????????????????????????

???1'????????????????????o???????????????????????????????????o????o?????????????????????????????1?????????????????????????????????-????????'??????2????????1?????????????????2??????????????'????????????????????o??????????????[1]??????o???2????????2????????????????????????o???????o??????|???o???????????????????????'???????????2???????'??????[2-4]??????o????2????????????TFe???????o?71??????Si02???o?0.6??????Fe304??99?????????????????????2????[5]???

????????????????????????????2??????????????????????????????????????????????????????????o???????????o?????o????o??????????????????????2????????o???o????2?????????????2?????????????????????o???????????????????????????????????????a??????????????????????????????????o??????????o???'?2??????????o????????????????????o??????????????????????????????2??????o???????????????????????????-??????????????o????2??????????????a????????????o????????????o????2?????????????o???????????????????????

1  ????????'

1.1 ????-|??????'????????????????

??1??????????????????????|?????-|??????????????????????????????????????????????1????2???

?1 ????????2???????|?????-|??????????????????  %

??????

TFe

SiO2

 

Al2O3

CaO

MgO

S

P

?????/%

66?12

6?73

 

0.49

0.01

0.32

0?07

0.01

?2 ????????2??????????????????????   %

??????

????????

??????

??????

???????

????????

?????/%

90.92

0.20

0?10

<0.10

<0.10

????1???2???????????o?????????????2???????|?????????o???????????????????oSiO2??????|???????????????????????????????371%?????????SiO2????????31%???????????????????o????2?????2????'????????|??????

1?2 ?2??o|??????

??o?????????????a?2??o??-?????SiO2????????????????????1???????????2??o|???????????????????????3???

?3 ?2??o|????????a???????

?2??o/mm

?o???/%

??????/%

?????????/%

SiO2?????

+0.125

9?18

49.80

6.91

15.94

-0?125+0?098

16.03

61.99

15?03

7.99

-0.098+0.074

11.81

66.53

11.88

7?40

-0.074+0.048

6.45

67?43

6?58

6?64

-0?048+0?038

18.38

68.97

19.17

4.49

-0?038

38.14

70?08

40.42

2.07

?????

100.00

66.12

100.00

5.66

????3???????????o?????-0.074mm????2??o??-?????????????????????????67%?????????????????????????66.17%???SiO2????????2??2??o??-????????????

2  ???????????o

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

??1???????????????'?????????????????????a??????????|????1????o????????????????????????????a?????????4???

?4 ???????????????'?????????????????????a???????

?????

?o???

?o???/%

??????/%

?????????/%

??a???????

?2???

?2????

96?22

67.21

98?46

I??o=0.2A

I??a=0.8A

T=3s

W??????=15ml/s

W?o????=115ml/s

?????

3.78

26.72

1.54

??????

100.00

65?68

100.00

?2???

?2????

96.56

68?43

98.31

I??o=0.2A

I??a=0.8A

T=3s

W??????=15ml/s

W?o????=125ml/s

?????

3?44

32.97

1?69

??????

100?00

67?21

100.00

???1 ????????2??????'???????????????????????????

????4???????????o?????'????????????????????????????????2??2??????????????????2???????????????o68.43%?????????????o????????????2?????o??????

2?2 ????????2????-200????2??o?????????a?

?3?1????????+200?????-SiO2?????????????????????????2??????'???????????????????????????o???2?????????|?????'????????-??????????2??????-???+200????-???o?1???????????????-200??????2?????????o??????????????????????????????????2?????a?????????5???

???2 ????????2????-200????2??o?????????a??????

???5??????????????o????????o????????o0?2A????????a????????o????????0?5A??????????o?????????????100ml/s??????????2?????????????????o10ml/s?????????????????????????????????????o?2????????????o71%????????????2???????

?5 ????????2????-200????2??o?????????a???????

?????

?o???

?o???/%

??????/%

?????????/%

??a???????

?2???

?2????

94.35

70.63

96.87

I??o=0.2A

I??a=0.7A

T=3s

W??????=13ml/s

W?o????=100ml/s

?????

5?65

38.06

3.13

??????

100.00

68.79

100.00

?2???

?2????

94?22

71.06

94?79

I??o=0.2A

I??a=0.5A

T=3s

W??????=10ml/s

W?o????=130ml/s

?????

5.78

63.62

5?21

??????

100?00

70?63

100?00

 

2.3  9min???11min??????o?????'????????????????a?

?????????????2????-200??????2????????'???????????????????o???2????????????????????2??????-+200????????????37?02%??????2?????????????????????????-?????????????a????????????????1????????2??????????????????????????????3???????????6???

???3 9min???11min?????-????????????????????

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

????????????????????

??????

9min

11min

?2???

I??o=0.2A

I??a=0.7A

T=3s

W??????=5ml/s

W?o????=130ml/s

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

70?85

70.98

???????????/%

41.24

35.94

????????????/%

65.49

65.48

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

81?90

84.30

?????????/%

88.60

91?38

?2???

I??o=0.2A

I??a=0.5A

T=3s

W??????=5ml/s

W?o????=130ml/s

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

71.46

71.43

???????????/%

68?04

69?36

????????????/%

70.85

70?98

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

82.16

78.26

?????????/%

82?87

78.76

????6???????????o???9min???11min??????o?????'???????????????????????????o????????71%??????????2??????????????????????????????o|???????????2??????????????????????????

2?4 ??????????????

??1????????3??'????????1??????????????3?????????a????????????1??????????????????????????o???????????????1????????????????????????????????????????o?????????????????????????????4????7???

???4 ????????????o????o???o????2?????2??????

 

?7  ????????????????????o??????

?o???????

?o???/%

??????/%

?????????/%

?2????

74.58

71.84

81?92

????????2??2?

16.96

65?49

16.98

?????

8.46

8.56

1.10

??????

100?00

65.40

100.00

???7???????????????1????????2????-200?????????????????????????????????????-????????????????????????????????????????????????o???2???????????????71?46%???????71?84%?????????????3?????81?87%?|??3????-??????????????????o8?56%????????o????????????????????????????????o?65?49%???????????????????????2???????????????????o??o????????????????????????o????????????????

2?5?o????????????????????????-|??????'???????

??11min??????o????????????2?????????????????????????????????????????2?????o???????????-|??????'??????????????????????????????????|?8????9????o???

?8 ???o???2?????????????'?????????????    %

??????

TFe

SiO2

 

Al2O3

CaO

MgO

S

P

?????/%

71?84

0?23

 

0.27

0.25

0?08

0?03

0?01

?9 ????????2??????????????????????   %

??????

????????

??????

??????

???????

????????

?????/%

99.08

0.10

0?17

<0?10

<0.10

???8????9????????????6??????????2???????????????????o71.84???SiO2???????o0.23%??????????????????????3????'?S???P?????????1?????????????????o????2??????-???|?????????o???????????

3  ???    ?o

???1??????????3??-???????????????2??o|?????1???2????????????o?????????o????2??2?????????????????????????o???????????????o???o????2??2????

???2???????????????????????????????????1???????????????3???????o??????????2????????????????????????????o??2?????o???'??????3??????

???3???????????????o|???-0.074mm????????????88.41%??????????????????????????????????????????????????????????|??????????????2????????????o71.84%??????????????o81.92%?????-???????????o65.49%????????????????o8.56%????2??????-???'??????????????????????????3???

???4???????????2??2???????????????o??o???o????2?????2??????????????o???????????????o65%???????????-???????????'?????????????????2??2????????o???o?????????????????

 


 



???????????????13 ????? ?|?1?????-??????????????????????????????????????????a??????????????????????????o??????????????????2018?1'???7???

???????????3?o???????????'???????????????????o????2??????a????



????????????
?????? ?????? ???? ?????? ???? ?????? ?????? ?????? ???? ????