KR100402003B1 - 전기로 조업시 고철의 용해 촉진방법 - Google Patents
전기로 조업시 고철의 용해 촉진방법 Download PDFInfo
- Publication number
- KR100402003B1 KR100402003B1 KR10-1999-0036199A KR19990036199A KR100402003B1 KR 100402003 B1 KR100402003 B1 KR 100402003B1 KR 19990036199 A KR19990036199 A KR 19990036199A KR 100402003 B1 KR100402003 B1 KR 100402003B1
- Authority
- KR
- South Korea
- Prior art keywords
- scrap
- dissolution
- aluminum dross
- oxygen
- electric furnace
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002844 melting Methods 0.000 title claims description 8
- 230000008018 melting Effects 0.000 title claims description 8
- 230000001965 increasing effect Effects 0.000 title description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 57
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 48
- 238000004090 dissolution Methods 0.000 claims abstract description 34
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 239000003923 scrap metal Substances 0.000 claims abstract description 18
- 238000007670 refining Methods 0.000 claims abstract description 4
- 239000004484 Briquette Substances 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000011017 operating method Methods 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 48
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 28
- 229910052760 oxygen Inorganic materials 0.000 description 27
- 239000001301 oxygen Substances 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005502 peroxidation Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- DHKVCYCWBUNNQH-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(1,4,5,7-tetrahydropyrazolo[3,4-c]pyridin-6-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)C=NN2 DHKVCYCWBUNNQH-UHFFFAOYSA-N 0.000 description 1
- QRSFFHRCBYCWBS-UHFFFAOYSA-N [O].[O] Chemical compound [O].[O] QRSFFHRCBYCWBS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- 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
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
시편번호 | 알루미늄드로스투입량(㎏/톤) | 산소 | 산소투입비(중량부) | 전력원단위(%) | 산화철량(%) | |
투입량(㎏/톤) | 종류 | |||||
비교예1 | 0 | 0 | 액체산소 | - | 100 | 100 |
비교예2 | 4 | 2 | 50 | 98 | 120 | |
비교예3 | 8 | 4 | 50 | 98 | 122 | |
발명예1 | 12 | 6 | 50 | 95 | 125 | |
발명예2 | 24 | 12 | 50 | 92 | 127 | |
발명예3 | 36 | 18 | 50 | 88 | 125 | |
발명예4 | 48 | 25 | 50 | 85 | 131 | |
비교예4 | 60 | 30 | 50 | 82 | 162 | |
비교예5 | 70 | 35 | 50 | 80 | 178 | |
비교예6 | 12 | 6 | 기체산소 | 50 | 97 | 165 |
비교예7 | 24 | 12 | 50 | 94 | 171 | |
비교예8 | 36 | 18 | 50 | 91 | 187 | |
비교예9 | 48 | 25 | 50 | 88 | 195 | |
종래예1 | 12 | 6 | 고체산소(산화철) | 50 | 99 | 132 |
종래예2 | 24 | 12 | 50 | 97 | 141 | |
종래예3 | 36 | 18 | 50 | 95 | 163 | |
종래예4 | 48 | 25 | 50 | 92 | 171 |
시편번호 | 알루미늄드로스투입량(㎏/톤) | 액체산소투입량(㎏/톤) | 산소투입비(중량부) | 전력원단위(%) | 산화철량(%) |
비교예a | 0 | 0 | - | 100 | 100 |
비교예b | 24 | 4.8 | 20 | 98 | 110 |
비교예c | 24 | 7.2 | 30 | 98 | 112 |
발명예a | 24 | 9.6 | 40 | 95 | 116 |
발명예b | 24 | 12 | 50 | 92 | 127 |
발명예c | 24 | 15.6 | 65 | 90 | 141 |
발명예d | 24 | 18 | 75 | 88 | 149 |
비교예d | 24 | 19.6 | 80 | 85 | 193 |
비교예e | 24 | 21.6 | 90 | 82 | 225 |
Claims (1)
- 장입된 고철을 통전하여 용해하고 정련하는 것을 포함하는 전기로 조업방법에 있어서, 상기 고철장입 전에 알루미늄드로스 단광을 장입고철 톤당 12~48㎏ 투입한 다음, 고철을 장입하여 통전하면서 고철의 용해가 완료될 때까지 상기 알루미늄드로스 단광에 대해 45~75중량부의 액체산소를 공급하는 것을 특징으로 하는 전기로 조업시 고철의 용해 촉진방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0036199A KR100402003B1 (ko) | 1999-08-30 | 1999-08-30 | 전기로 조업시 고철의 용해 촉진방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0036199A KR100402003B1 (ko) | 1999-08-30 | 1999-08-30 | 전기로 조업시 고철의 용해 촉진방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010019662A KR20010019662A (ko) | 2001-03-15 |
KR100402003B1 true KR100402003B1 (ko) | 2003-10-17 |
Family
ID=19609157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1999-0036199A KR100402003B1 (ko) | 1999-08-30 | 1999-08-30 | 전기로 조업시 고철의 용해 촉진방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100402003B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030054328A (ko) * | 2001-12-24 | 2003-07-02 | 주식회사 포스코 | 분체 폐 알루미늄을 이용한 용강제조방법 |
KR102596277B1 (ko) | 2020-12-16 | 2023-11-01 | 주식회사 에스에이텍 | 전기로용 승열제 단광의 제조방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR900001866A (ko) * | 1988-07-22 | 1990-02-27 | 미터, 쉬터루쯜 | 강용융물을 가열하기 위한 방법 및 장치 |
KR910006501A (ko) * | 1989-09-23 | 1991-04-29 | 남정우 | 철강 정련제 및 철강 정련 방법 |
KR970027323A (ko) * | 1995-11-30 | 1997-06-24 | 김종진 | 극저탄소강 승온재의 청정강 제조용 탈산제 |
US5698009A (en) * | 1994-12-26 | 1997-12-16 | Pohang Iron & Steel Co., Ltd. | Method for agglomerating pre-reduced hot iron ore particles to produce ingot iron |
-
1999
- 1999-08-30 KR KR10-1999-0036199A patent/KR100402003B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR900001866A (ko) * | 1988-07-22 | 1990-02-27 | 미터, 쉬터루쯜 | 강용융물을 가열하기 위한 방법 및 장치 |
KR910006501A (ko) * | 1989-09-23 | 1991-04-29 | 남정우 | 철강 정련제 및 철강 정련 방법 |
US5698009A (en) * | 1994-12-26 | 1997-12-16 | Pohang Iron & Steel Co., Ltd. | Method for agglomerating pre-reduced hot iron ore particles to produce ingot iron |
KR970027323A (ko) * | 1995-11-30 | 1997-06-24 | 김종진 | 극저탄소강 승온재의 청정강 제조용 탈산제 |
Also Published As
Publication number | Publication date |
---|---|
KR20010019662A (ko) | 2001-03-15 |
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