JP4603628B2 - 含炭非焼成ペレットを用いる高炉操業方法 - Google Patents
含炭非焼成ペレットを用いる高炉操業方法 Download PDFInfo
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- JP4603628B2 JP4603628B2 JP2010508646A JP2010508646A JP4603628B2 JP 4603628 B2 JP4603628 B2 JP 4603628B2 JP 2010508646 A JP2010508646 A JP 2010508646A JP 2010508646 A JP2010508646 A JP 2010508646A JP 4603628 B2 JP4603628 B2 JP 4603628B2
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- 239000008188 pellet Substances 0.000 title claims description 254
- 229910052799 carbon Inorganic materials 0.000 title claims description 150
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 148
- 238000000034 method Methods 0.000 title claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 126
- 229910052742 iron Inorganic materials 0.000 claims description 60
- 239000002994 raw material Substances 0.000 claims description 54
- 238000002156 mixing Methods 0.000 claims description 20
- 239000000571 coke Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 8
- 238000011017 operating method Methods 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 description 66
- 230000009467 reduction Effects 0.000 description 61
- 230000001603 reducing effect Effects 0.000 description 51
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 37
- 239000000463 material Substances 0.000 description 36
- 239000002245 particle Substances 0.000 description 24
- 239000003575 carbonaceous material Substances 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 22
- 239000007789 gas Substances 0.000 description 20
- 239000000428 dust Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000005245 sintering Methods 0.000 description 12
- 239000011230 binding agent Substances 0.000 description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 230000035699 permeability Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 238000002309 gasification Methods 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 5
- 239000011398 Portland cement Substances 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007872 degassing Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004484 Briquette Substances 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LJROKJGQSPMTKB-UHFFFAOYSA-N 4-[(4-hydroxyphenyl)-pyridin-2-ylmethyl]phenol Chemical compound C1=CC(O)=CC=C1C(C=1N=CC=CC=1)C1=CC=C(O)C=C1 LJROKJGQSPMTKB-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008689 nuclear function Effects 0.000 description 1
- 230000036619 pore blockages Effects 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/007—Conditions of the cokes or characterised by the cokes used
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
- C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Description
(i)予め含炭非焼成ペレットと焼成ペレットを混合し、該含炭非焼成ペレットと前記焼成ペレットの混合物を、前記鉄含有原料層の一部と代替するように装入し、かつ、
(ii)前記焼成ペレットの使用原単位P(kg/tp)を150kg/tp以上、650kg/tp以下とし、
(iii)前記含炭非焼成ペレットの使用原単位R(kg/tp)と、前記焼成ペレットの使用原単位P(kg/tp)の比R(kg/tp)/P(kg/tp)が0.09〜0.31となるように、前記含炭非焼成ペレットと前記焼成ペレットの混合割合を調整することを特徴とする含炭非焼成ペレットを用いる高炉操業方法。
焼成ペレットは、含炭非焼成ペレットに関与せず、通常コークス由来の還元ガスによって還元される。
焼成ペレットは、含炭非焼成ペレット由来の還元ガスにより還元される。
C+CO2=2CO・・・(1) (含炭非焼成ペレット由来Cのガス化開始)
2CO+2FeO=2Fe+2CO2・・・(2) (焼成ペレットの間接還元)
上記(1)式、(2)式から
C+2FeO=2Fe+CO2
モル比:C/O=0.5
焼成ペレットは軟化融着開始し、溶融(直接)還元によって還元される。
C+FeO=Fe+CO・・・(3)
モル比:C/O=1.0
R(kg/tp)=12×100/C×(0.1×28.1/
100/16×P+0.6×O/100/
16×R)(kg/tp)・・・(4)
が成り立つ。
C+Fe2O3=75(質量%) ・・・(5)
となるので、
被還元酸素:O(mol%)とカーボン含有量:C(質量%)の関係は、
O(mol%)=3×16/(2×55.85+3×16)×
(75−C)/16
=0.3×(75−C)/16 ・・・(6)
となる。
R(kg/tp)=12/C×100×(0.1×28.1/
100/16×P+0.6×0.3×
(75−C)/16/100×R)
=2.1075×P/(1.135×C−
10.125)・・(7)
となる。
[C/O]=C/12×16/0.3/(75−C)
=4.44×C/(75−C) ・・・(7)
となり、
C=75×[C/O]/(4.44+[C/O]) ・・・(8)
となる。
R(kg/tp)=(0.09〜0.31)×P(kg/tp) ・・・(9)
含鉄ダスト、含カーボンダスト、早強ポルトランドセメントを原料として、2種類の含炭非焼成ペレット、P1とP2を製造した。P1は、C含有量が23%、C/Oが2.0、脈石成分量が25%である。P2は、C含有量が28%、C/Oが2.8、脈石成分量が25%である。
2 反応ガス出口
3 試料
4 熱電対
5 上段電気炉
6 下段電気炉
7 還元ガス入口
8 液滴収容部
9 液滴検知器
Claims (1)
- 高炉の炉頂から鉄含有原料とコークスを交互に層状に装入する高炉操業方法において、
(i)予め含炭非焼成ペレットと焼成ペレットを混合し、該含炭非焼成ペレットと前記焼成ペレットの混合物を、前記鉄含有原料層の一部と代替するように装入し、かつ、
(ii)前記焼成ペレットの使用原単位P(kg/tp)を150kg/tp以上、650kg/tp以下とし、
(iii)前記含炭非焼成ペレットの使用原単位R(kg/tp)と、前記焼成ペレットの使用原単位P(kg/tp)の比R(kg/tp)/P(kg/tp)が0.09〜0.31となるように、前記含炭非焼成ペレットと前記焼成ペレットの混合割合を調整することを特徴とする含炭非焼成ペレットを用いる高炉操業方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008264483 | 2008-10-10 | ||
JP2008264483 | 2008-10-10 | ||
PCT/JP2009/067948 WO2010041770A1 (ja) | 2008-10-10 | 2009-10-09 | 含炭非焼成ペレットを用いる高炉操業方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP4603628B2 true JP4603628B2 (ja) | 2010-12-22 |
JPWO2010041770A1 JPWO2010041770A1 (ja) | 2012-03-08 |
Family
ID=42100712
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Application Number | Title | Priority Date | Filing Date |
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JP2010508646A Active JP4603628B2 (ja) | 2008-10-10 | 2009-10-09 | 含炭非焼成ペレットを用いる高炉操業方法 |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2336371B8 (ja) |
JP (1) | JP4603628B2 (ja) |
KR (1) | KR101211302B1 (ja) |
CN (1) | CN102177256B (ja) |
BR (1) | BRPI0920547B1 (ja) |
UA (1) | UA97916C2 (ja) |
WO (1) | WO2010041770A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015108184A (ja) * | 2013-10-22 | 2015-06-11 | 新日鐵住金株式会社 | 炭素高反応性装入物の装入量決定方法及びこれを用いた高炉操業方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104313306B (zh) * | 2014-10-15 | 2016-08-10 | 中冶长天国际工程有限责任公司 | 一种烧结矿固体燃料单位消耗量的测量方法及装置 |
JP6696376B2 (ja) * | 2016-09-13 | 2020-05-20 | 日本製鉄株式会社 | 高炉の操業方法 |
CN111638316B (zh) * | 2020-05-29 | 2022-09-16 | 鞍钢股份有限公司 | 一种模拟高炉高温段焦炭反应装置及方法 |
CN112609030A (zh) * | 2020-12-11 | 2021-04-06 | 四川德胜集团钒钛有限公司 | 一种钒钛磁铁矿的高炉冶炼方法 |
CN115368042B (zh) * | 2022-08-19 | 2023-09-08 | 深圳市考拉生态科技有限公司 | 一种利用氟石膏与石英废石生产多孔性硅灰石球粒的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5358416A (en) * | 1976-11-05 | 1978-05-26 | Nippon Steel Corp | Blast furnace operating method |
JPS58164710A (ja) * | 1982-03-24 | 1983-09-29 | Sumitomo Metal Ind Ltd | 高炉原料の装入方法 |
JP2008095177A (ja) * | 2006-09-11 | 2008-04-24 | Nippon Steel Corp | 高炉用含炭非焼成ペレットの製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53130202A (en) | 1977-04-20 | 1978-11-14 | Nippon Steel Corp | Preparation of cold pellet of dust |
CN1025351C (zh) * | 1990-10-23 | 1994-07-06 | 刘玉琦 | 生料混装高炉炼铁法 |
JP3068967B2 (ja) * | 1992-11-09 | 2000-07-24 | 新日本製鐵株式会社 | 高炉操業法 |
JP3708981B2 (ja) | 1995-01-20 | 2005-10-19 | 新日本製鐵株式会社 | 製鉄用塊成鉱 |
JP3754553B2 (ja) | 1997-07-22 | 2006-03-15 | 株式会社神戸製鋼所 | 還元鉄用塊成化物およびその製造方法 |
JP3004265B1 (ja) | 1998-11-24 | 2000-01-31 | 株式会社神戸製鋼所 | 炭材内装ペレット及び還元鉄製造方法 |
JP3863052B2 (ja) | 2002-04-11 | 2006-12-27 | 株式会社神戸製鋼所 | 高炉原料装入方法 |
JP4118604B2 (ja) | 2002-05-28 | 2008-07-16 | 株式会社 テツゲン | 高炉用のカーボン内装非焼成塊成鉱およびその製造方法 |
JP4971815B2 (ja) * | 2007-02-01 | 2012-07-11 | 株式会社神戸製鋼所 | 高炉操業方法 |
-
2009
- 2009-10-09 BR BRPI0920547-0A patent/BRPI0920547B1/pt active IP Right Grant
- 2009-10-09 CN CN2009801398032A patent/CN102177256B/zh active Active
- 2009-10-09 KR KR1020117008074A patent/KR101211302B1/ko active IP Right Grant
- 2009-10-09 EP EP09819299.0A patent/EP2336371B8/en active Active
- 2009-10-09 WO PCT/JP2009/067948 patent/WO2010041770A1/ja active Application Filing
- 2009-10-09 JP JP2010508646A patent/JP4603628B2/ja active Active
- 2009-10-09 UA UAA201105488A patent/UA97916C2/ru unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5358416A (en) * | 1976-11-05 | 1978-05-26 | Nippon Steel Corp | Blast furnace operating method |
JPS58164710A (ja) * | 1982-03-24 | 1983-09-29 | Sumitomo Metal Ind Ltd | 高炉原料の装入方法 |
JP2008095177A (ja) * | 2006-09-11 | 2008-04-24 | Nippon Steel Corp | 高炉用含炭非焼成ペレットの製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015108184A (ja) * | 2013-10-22 | 2015-06-11 | 新日鐵住金株式会社 | 炭素高反応性装入物の装入量決定方法及びこれを用いた高炉操業方法 |
Also Published As
Publication number | Publication date |
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UA97916C2 (ru) | 2012-03-26 |
CN102177256A (zh) | 2011-09-07 |
JPWO2010041770A1 (ja) | 2012-03-08 |
CN102177256B (zh) | 2013-08-21 |
KR20110051292A (ko) | 2011-05-17 |
KR101211302B1 (ko) | 2012-12-11 |
EP2336371A4 (en) | 2017-05-03 |
RU2011117324A (ru) | 2012-11-20 |
BRPI0920547A2 (pt) | 2020-08-11 |
EP2336371B1 (en) | 2019-01-02 |
BRPI0920547B1 (pt) | 2021-09-28 |
WO2010041770A1 (ja) | 2010-04-15 |
EP2336371B8 (en) | 2019-04-24 |
EP2336371A1 (en) | 2011-06-22 |
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