JP5723342B2 - 地金回収方法 - Google Patents
地金回収方法 Download PDFInfo
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- JP5723342B2 JP5723342B2 JP2012207721A JP2012207721A JP5723342B2 JP 5723342 B2 JP5723342 B2 JP 5723342B2 JP 2012207721 A JP2012207721 A JP 2012207721A JP 2012207721 A JP2012207721 A JP 2012207721A JP 5723342 B2 JP5723342 B2 JP 5723342B2
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- JP
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- Prior art keywords
- ladle
- molten iron
- metal
- bullion
- electric furnace
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 142
- 229910052742 iron Inorganic materials 0.000 claims description 71
- 239000002184 metal Substances 0.000 claims description 56
- 229910052751 metal Inorganic materials 0.000 claims description 56
- 238000003756 stirring Methods 0.000 claims description 24
- 238000007670 refining Methods 0.000 claims description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- 238000003723 Smelting Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000010907 mechanical stirring Methods 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 description 21
- 230000023556 desulfurization Effects 0.000 description 21
- 238000012423 maintenance Methods 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 238000010079 rubber tapping Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- -1 carbide Chemical compound 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Images
Classifications
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/001—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like devices for cleaning ladles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
-
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/005—Manufacture of stainless steel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
-
- 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
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/06—Constructional features of mixers for pig-iron
-
- 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
- C21C2200/00—Recycling of waste material
-
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5294—General arrangement or layout of the electric melt shop
-
- 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
実施の形態1.
図1は、本発明の実施の形態1による地金回収方法が適用される製鋼所を示す説明図である。図において、製鋼所には、電気炉出湯エリア1、KR脱硫エリア2、転炉注湯エリア3、地金落としエリア4及び取鍋整備エリア5が設けられている。製鋼所内で溶鉄6aを移送する取鍋6は、通常、電気炉出湯エリア1、KR脱硫エリア2、転炉注湯エリア3及び地金落としエリア4の順で搬送される。地金落としエリア4まで搬送された取鍋6は、電気炉出湯エリア1に戻される。なお、図1では1つの取鍋6を示しているが、複数の取鍋6が電気炉出湯エリア1、KR脱硫エリア2、転炉注湯エリア3及び地金落としエリア4を順に循環されてもよい。
図7は、本発明の実施の形態2による地金回収方法におけるインジェクション撹拌精錬を示す説明図である。実施の形態1では取鍋内撹拌精錬としてKR脱硫(機械撹拌精錬)を行うように説明したが、図7に示すインジェクション撹拌精錬を行うこともできる。インジェクション撹拌精錬では、溶鉄6a中に浸漬した浸漬ノズル22から溶鉄6a中にガスを吹き込むことで、溶鉄6a及び脱硫剤の撹拌が行われる。このようなインジェクション撹拌精錬でも飛沫21が発生し、取鍋6に地金6bが付着する。その他の構成は、実施の形態1と同様である。
6a 溶鉄
6b 地金
10 電気炉(溶解炉)
20 インペラ
30 転炉(精錬炉)
Claims (1)
- 電気炉から取鍋に溶鉄を注ぎ、前記取鍋内にて溶鉄の撹拌精錬を行い、前記取鍋内の溶鉄を精錬炉に注ぐ一連の工程で前記取鍋に付着した地金を材料として回収するための地金回収方法であって、
前記取鍋から前記精錬炉に溶鉄を注いだ後に、前記精錬炉から前記電気炉に前記取鍋を搬送する経路上に設けられた地金落としエリアで前記取鍋内に前記取鍋に付着した地金を落とすとともに、前記地金が落とされた前記取鍋を待機鍋とせずに連続的に使用して該取鍋に前記電気炉から溶鉄を注ぐことで前記地金を溶解して材料として回収することを含み、
前記電気炉から前記取鍋に注がれる溶鉄は、Crを9〜30質量%及びCを1〜4質量%含むステンレス鋼溶鉄であり、
前記撹拌精錬は、溶鉄内に浸漬されたインペラにより撹拌を行う機械撹拌精錬である
ことを特徴とする地金回収方法。
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012207721A JP5723342B2 (ja) | 2012-09-21 | 2012-09-21 | 地金回収方法 |
ES13838170.2T ES2668862T3 (es) | 2012-09-21 | 2013-07-25 | Método de recuperación de metales |
US14/429,556 US9663838B2 (en) | 2012-09-21 | 2013-07-25 | Metal recovery method |
PCT/JP2013/070163 WO2014045710A1 (ja) | 2012-09-21 | 2013-07-25 | 地金回収方法 |
KR1020157008515A KR102096128B1 (ko) | 2012-09-21 | 2013-07-25 | 지금 회수 방법 |
IN703KON2015 IN2015KN00703A (ja) | 2012-09-21 | 2013-07-25 | |
EP13838170.2A EP2899284B1 (en) | 2012-09-21 | 2013-07-25 | Metal recovery method |
MYPI2015700848A MY197137A (en) | 2012-09-21 | 2013-07-25 | Metal recovery method |
CN201380049163.2A CN104704132B (zh) | 2012-09-21 | 2013-07-25 | 结壳回收方法 |
TW102127214A TWI593805B (zh) | 2012-09-21 | 2013-07-30 | 金屬回收方法 |
ZA2015/02037A ZA201502037B (en) | 2012-09-21 | 2015-03-25 | Metal recovery method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012207721A JP5723342B2 (ja) | 2012-09-21 | 2012-09-21 | 地金回収方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2014062298A JP2014062298A (ja) | 2014-04-10 |
JP2014062298A5 JP2014062298A5 (ja) | 2014-10-30 |
JP5723342B2 true JP5723342B2 (ja) | 2015-05-27 |
Family
ID=50341036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012207721A Active JP5723342B2 (ja) | 2012-09-21 | 2012-09-21 | 地金回収方法 |
Country Status (11)
Country | Link |
---|---|
US (1) | US9663838B2 (ja) |
EP (1) | EP2899284B1 (ja) |
JP (1) | JP5723342B2 (ja) |
KR (1) | KR102096128B1 (ja) |
CN (1) | CN104704132B (ja) |
ES (1) | ES2668862T3 (ja) |
IN (1) | IN2015KN00703A (ja) |
MY (1) | MY197137A (ja) |
TW (1) | TWI593805B (ja) |
WO (1) | WO2014045710A1 (ja) |
ZA (1) | ZA201502037B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108106448B (zh) * | 2017-12-18 | 2019-07-26 | 巢湖云海镁业有限公司 | 一种用于真空冶炼还原装置的下顶渣机 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2564037A (en) * | 1947-10-28 | 1951-08-14 | Air Reduction | Method of removing skulls from metal receptacles |
GB934163A (en) * | 1961-07-11 | 1963-08-14 | Foseco Int | Treatment of vessels used for holding molten metal |
JPS6164811A (ja) * | 1984-09-03 | 1986-04-03 | Nippon Kokan Kk <Nkk> | 溶鋼の脱硫方法 |
JP3293383B2 (ja) * | 1995-01-18 | 2002-06-17 | 日本鋼管株式会社 | 溶銑滓地金の使用方法 |
JPH09314316A (ja) * | 1996-05-30 | 1997-12-09 | Kawasaki Steel Corp | 溶鋼鍋内の付着物除去方法 |
JP3365498B2 (ja) * | 1999-12-24 | 2003-01-14 | 株式会社フジコー | 地金付着物の除去装置 |
KR20020032827A (ko) * | 2000-10-27 | 2002-05-04 | 이구택 | 전기로 루프의 지금 재생장치 |
JP2003001414A (ja) * | 2001-06-22 | 2003-01-08 | Fujikoo:Kk | 溶銑保持容器の付着物の除去設備 |
JP3643553B2 (ja) * | 2001-11-29 | 2005-04-27 | 新日本製鐵株式会社 | Krインペラー付着物除去装置及び方法 |
KR100829959B1 (ko) * | 2001-12-22 | 2008-05-16 | 주식회사 포스코 | 레이들의 상부 누적 지금 제거장치 |
KR100778734B1 (ko) * | 2001-12-24 | 2007-11-23 | 주식회사 포스코 | 레이들커버 및 랜스의 지금 제거장치 |
US8057570B2 (en) * | 2004-10-11 | 2011-11-15 | Technological Resources Pty. Limited | Electric arc furnace steelmaking |
JP4936787B2 (ja) * | 2006-05-12 | 2012-05-23 | 日新製鋼株式会社 | 含Cr溶銑の脱硫精錬剤および脱硫方法 |
JP4714655B2 (ja) * | 2006-09-05 | 2011-06-29 | 新日本製鐵株式会社 | 含クロム溶鉄の脱硫方法 |
JP4999483B2 (ja) * | 2007-02-07 | 2012-08-15 | 日新製鋼株式会社 | ステンレス溶銑の製造方法 |
JP5436302B2 (ja) * | 2010-03-29 | 2014-03-05 | 日新製鋼株式会社 | 含クロム溶銑およびスラグの処理方法 |
JP5606152B2 (ja) * | 2010-05-24 | 2014-10-15 | 株式会社神戸製鋼所 | 取鍋の地金除去方法 |
JP5309172B2 (ja) * | 2011-03-08 | 2013-10-09 | 日新製鋼株式会社 | インペラの回転数制御方法 |
-
2012
- 2012-09-21 JP JP2012207721A patent/JP5723342B2/ja active Active
-
2013
- 2013-07-25 IN IN703KON2015 patent/IN2015KN00703A/en unknown
- 2013-07-25 US US14/429,556 patent/US9663838B2/en active Active
- 2013-07-25 CN CN201380049163.2A patent/CN104704132B/zh active Active
- 2013-07-25 EP EP13838170.2A patent/EP2899284B1/en active Active
- 2013-07-25 ES ES13838170.2T patent/ES2668862T3/es active Active
- 2013-07-25 MY MYPI2015700848A patent/MY197137A/en unknown
- 2013-07-25 KR KR1020157008515A patent/KR102096128B1/ko active IP Right Grant
- 2013-07-25 WO PCT/JP2013/070163 patent/WO2014045710A1/ja active Application Filing
- 2013-07-30 TW TW102127214A patent/TWI593805B/zh active
-
2015
- 2015-03-25 ZA ZA2015/02037A patent/ZA201502037B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA201502037B (en) | 2018-05-30 |
WO2014045710A1 (ja) | 2014-03-27 |
EP2899284A4 (en) | 2016-05-25 |
CN104704132A (zh) | 2015-06-10 |
TWI593805B (zh) | 2017-08-01 |
KR102096128B1 (ko) | 2020-04-01 |
US9663838B2 (en) | 2017-05-30 |
JP2014062298A (ja) | 2014-04-10 |
EP2899284A1 (en) | 2015-07-29 |
MY197137A (en) | 2023-05-26 |
US20150247213A1 (en) | 2015-09-03 |
ES2668862T3 (es) | 2018-05-22 |
TW201413000A (zh) | 2014-04-01 |
CN104704132B (zh) | 2016-09-28 |
EP2899284B1 (en) | 2018-02-28 |
KR20150054882A (ko) | 2015-05-20 |
IN2015KN00703A (ja) | 2015-07-17 |
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