JP5946201B2 - 高硫黄原料用の直接製錬法 - Google Patents
高硫黄原料用の直接製錬法 Download PDFInfo
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- JP5946201B2 JP5946201B2 JP2014500204A JP2014500204A JP5946201B2 JP 5946201 B2 JP5946201 B2 JP 5946201B2 JP 2014500204 A JP2014500204 A JP 2014500204A JP 2014500204 A JP2014500204 A JP 2014500204A JP 5946201 B2 JP5946201 B2 JP 5946201B2
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- 238000003723 Smelting Methods 0.000 title claims description 135
- 229910052717 sulfur Inorganic materials 0.000 title claims description 85
- 239000011593 sulfur Substances 0.000 title claims description 85
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims description 84
- 238000000034 method Methods 0.000 title claims description 77
- 239000002994 raw material Substances 0.000 title claims description 68
- 239000002184 metal Substances 0.000 claims description 93
- 229910052751 metal Inorganic materials 0.000 claims description 93
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 40
- 230000008569 process Effects 0.000 claims description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 32
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 229910052742 iron Inorganic materials 0.000 claims description 27
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000012768 molten material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 16
- 239000003245 coal Substances 0.000 description 14
- 239000000428 dust Substances 0.000 description 9
- 239000003575 carbonaceous material Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- 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
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/08—Screw feeders; Screw dischargers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
- C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/42—Sulphur removal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2100/00—Exhaust gas
- C21C2100/02—Treatment of the exhaust gas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
(a)製錬設備の直接製錬容器内に鉄及びスラグの溶融浴を形成するステップと、
(b)その浴中に、(i)金属含有材料、通常鉄鉱石、及び、(ii)酸化鉄の還元剤及びエネルギー源として作用する固体の炭素質材料、通常石炭、を注入するステップと、
(c)溶融浴中において金属含有材料を鉄に製錬するステップと、
を含む。
100×[%CO2+%H2O]/[%CO+%CO2+%H2+%H2O]
を意味すると理解される。
1.製錬サイクロンから流出するオフガスが、少なくとも75%、通常80〜100%の後燃焼の度合いを有するように、製錬サイクロン内の高い酸素ポテンシャルにおいて操作するために方法の操作条件を選択すること。目標とする後燃焼の度合いの達成には、炭素質材料(例えば石炭)及び金属含有原材料(例えば鉄鉱石)の供給速度と、製錬設備及び製錬サイクロンへの酸素の供給速度と、製錬設備からの熱損失とを含む(但しこれには限定されない)内部連関したパラメータの集合からの条件の選択が含まれる。
2.製錬サイクロン内において高温で操作すること。
3.粒子の曝露表面積が、十分な硫黄除去を可能にするのに、即ちバーンアウトを可能にするのに十分な程度に高くなるように、流入する金属含有原材料のサイズ分布を選択すること。通常の製錬サイクロンの操作は固体の空気圧供給を必要とし、このためには、粒子サイズの分布の最大サイズが約6mmより大きくないことが必要になる。いずれにせよ、更に微細に破砕されたサイズを使用することができる。しかし、硫黄をバーンアウトするには、(粒子の特定の特質及び硫黄バーンアウトの動力学に応じて、)それ以外の場合には妥当であったとみられるサイズより小さい最大サイズを用いることが適切であり得る。
Claims (10)
- 硫黄含有量が少なくとも0.2重量%の金属含有原材料を直接製錬して金属を製造する方法であって、(a)前記金属含有原材料を製錬サイクロン内において少なくとも部分的に還元しかつ部分的に溶融するステップと、(b)前記少なくとも部分的に還元/溶融された材料を、直接製錬容器の溶融浴中において完全に製錬するステップとを含む方法において、前記製錬サイクロンから流出するオフガスが少なくとも75%の後燃焼の度合いを有するように前記製錬サイクロンにおける酸素ポテンシャルを維持する、ことを特徴とする方法。
- 請求項1に記載の方法において、前記金属含有原材料中の硫黄含有量が少なくとも0.25重量%である、ことを特徴とする方法。
- 請求項1に記載の方法において、前記金属含有原材料中の硫黄含有量が少なくとも0.3重量%である、ことを特徴とする方法。
- 請求項1に記載の方法において、前記金属含有原材料中の硫黄含有量が少なくとも0.5重量%である、ことを特徴とする方法。
- 請求項1乃至4の何れか一項に記載の方法において、前記製錬サイクロン内の高温を維持することを含む、ことを特徴とする方法。
- 請求項5に記載の方法において、前記金属含有原材料が鉄を含む原材料である場合には、前記製錬サイクロン内において、少なくとも1100℃の高温を維持することを含む、ことを特徴とする方法。
- 請求項1乃至6の何れか一項に記載の方法において、前記製錬サイクロンから流出するオフガスが少なくとも80%の後燃焼の度合いを有するように前記製錬サイクロンにおける酸素ポテンシャルを維持することを含む、ことを特徴とする方法。
- 請求項1乃至7の何れか一項に記載の方法において、前記製錬サイクロンに供給される金属含有原材料の粒子サイズを6mm未満となるように選択することを含む、ことを特徴とする方法。
- 請求項1乃至8の何れか一項に記載の方法において、前記製錬サイクロンに供給される金属含有原材料が1mm未満である、ことを特徴とする方法。
- 硫黄含有量が少なくとも0.2重量%の金属含有原材料を、製錬サイクロン及び溶融金属浴を含む直接製錬容器内において直接製錬する方法において、前記製錬サイクロンから流出するオフガスが少なくとも75%の後燃焼の度合いを有するように前記製錬サイクロンにおける酸素ポテンシャルを維持する、ことを特徴とする方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011901040 | 2011-03-21 | ||
AU2011901040A AU2011901040A0 (en) | 2011-03-21 | Direct Smelting Process for High Sulphur Feed | |
PCT/AU2012/000293 WO2012126055A1 (en) | 2011-03-21 | 2012-03-21 | Direct smelting process for high sulphur feed |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014514441A JP2014514441A (ja) | 2014-06-19 |
JP5946201B2 true JP5946201B2 (ja) | 2016-07-05 |
Family
ID=46878538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014500204A Active JP5946201B2 (ja) | 2011-03-21 | 2012-03-21 | 高硫黄原料用の直接製錬法 |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2689041B1 (ja) |
JP (1) | JP5946201B2 (ja) |
KR (1) | KR101957536B1 (ja) |
CN (1) | CN103534363B (ja) |
ES (1) | ES2874814T3 (ja) |
PL (1) | PL2689041T3 (ja) |
RU (1) | RU2600290C2 (ja) |
WO (1) | WO2012126055A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013113197A1 (de) * | 2013-11-28 | 2015-05-28 | Voestalpine Stahl Gmbh | Verfahren zum Bearbeiten von Entschwefelungsschlacke |
KR102369474B1 (ko) * | 2013-12-19 | 2022-03-02 | 타타 스틸 네덜란드 테크날러지 베.뷔. | 제련 사이클론의 동작 방법 |
JP7177435B2 (ja) * | 2018-10-16 | 2022-11-24 | 国立研究開発法人日本原子力研究開発機構 | アルミニウム切粉の処理装置および処理方法 |
PL4028562T3 (pl) * | 2019-09-12 | 2023-11-27 | Tata Steel Ijmuiden B.V. | Sposób wprowadzania wsadu metalonośnego w procesie produkcji surówki |
WO2023244479A1 (en) | 2022-06-15 | 2023-12-21 | Nucor Corporation | A direct bath smelting process with management of peripheral cold zones at the metal-slag interface |
WO2024177852A1 (en) | 2023-02-21 | 2024-08-29 | Nucor Corporation | A direct bath smelting process with fast quench of molten material in hot offgas |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3607774A1 (de) * | 1986-03-08 | 1987-09-17 | Kloeckner Cra Tech | Verfahren zur zweistufigen schmelzreduktion von eisenerz |
CN1037193C (zh) * | 1994-05-23 | 1998-01-28 | 冶金工业部长沙矿冶研究院 | 一种生产直接还原铁的方法 |
NL9401103A (nl) * | 1994-07-01 | 1996-02-01 | Hoogovens Groep Bv | Werkwijze en inrichting voor het voorreduceren van ijzerverbindingen. |
NL9500264A (nl) * | 1995-02-13 | 1996-09-02 | Hoogovens Staal Bv | Werkwijze voor het produceren van vloeibaar ruwijzer. |
IT1291118B1 (it) * | 1997-03-25 | 1998-12-29 | Sviluppo Materiali Spa | Procedimento per la produzione diretta di ghisa a partire da minerale ferrifero fine e da carbone fossile ed apparecchiatura idonea per |
AUPP647198A0 (en) * | 1998-10-14 | 1998-11-05 | Technological Resources Pty Limited | A process and an apparatus for producing metals and metal alloys |
JP4540172B2 (ja) * | 2000-03-30 | 2010-09-08 | 株式会社神戸製鋼所 | 粒状金属鉄の製法 |
-
2012
- 2012-03-21 JP JP2014500204A patent/JP5946201B2/ja active Active
- 2012-03-21 KR KR1020137027534A patent/KR101957536B1/ko active IP Right Grant
- 2012-03-21 PL PL12759895T patent/PL2689041T3/pl unknown
- 2012-03-21 EP EP12759895.1A patent/EP2689041B1/en active Active
- 2012-03-21 WO PCT/AU2012/000293 patent/WO2012126055A1/en unknown
- 2012-03-21 RU RU2013144611/02A patent/RU2600290C2/ru active
- 2012-03-21 ES ES12759895T patent/ES2874814T3/es active Active
- 2012-03-21 CN CN201280014787.6A patent/CN103534363B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN103534363B (zh) | 2017-08-01 |
JP2014514441A (ja) | 2014-06-19 |
CN103534363A (zh) | 2014-01-22 |
EP2689041A4 (en) | 2014-10-08 |
EP2689041B1 (en) | 2021-04-28 |
ES2874814T3 (es) | 2021-11-05 |
KR20140027163A (ko) | 2014-03-06 |
KR101957536B1 (ko) | 2019-03-13 |
EP2689041A1 (en) | 2014-01-29 |
PL2689041T3 (pl) | 2021-10-25 |
WO2012126055A1 (en) | 2012-09-27 |
RU2600290C2 (ru) | 2016-10-20 |
RU2013144611A (ru) | 2015-04-27 |
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