KR20190027849A - 야금 전기로 및 제련 방법 - Google Patents
야금 전기로 및 제련 방법 Download PDFInfo
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- KR20190027849A KR20190027849A KR1020197003401A KR20197003401A KR20190027849A KR 20190027849 A KR20190027849 A KR 20190027849A KR 1020197003401 A KR1020197003401 A KR 1020197003401A KR 20197003401 A KR20197003401 A KR 20197003401A KR 20190027849 A KR20190027849 A KR 20190027849A
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000003723 Smelting Methods 0.000 title claims abstract description 45
- 239000002893 slag Substances 0.000 claims abstract description 130
- 239000003245 coal Substances 0.000 claims abstract description 119
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 93
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000001301 oxygen Substances 0.000 claims abstract description 87
- 230000008569 process Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 57
- 150000002430 hydrocarbons Chemical class 0.000 claims description 34
- 238000007664 blowing Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002802 bituminous coal Substances 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 10
- 239000003830 anthracite Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 52
- 238000002485 combustion reaction Methods 0.000 description 29
- 238000002844 melting Methods 0.000 description 28
- 230000008018 melting Effects 0.000 description 28
- 239000000126 substance Substances 0.000 description 28
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 229910052799 carbon Inorganic materials 0.000 description 17
- 238000007254 oxidation reaction Methods 0.000 description 17
- 229910002091 carbon monoxide Inorganic materials 0.000 description 15
- 239000003034 coal gas Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 15
- 238000006722 reduction reaction Methods 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 8
- 239000006260 foam Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000009628 steelmaking Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 238000002309 gasification Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- -1 ferrous metals Chemical class 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
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- C—CHEMISTRY; METALLURGY
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- 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
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
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- C—CHEMISTRY; METALLURGY
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- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
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- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- C21C2005/5223—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace with post-combustion
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- 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
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- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
- F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
- F27D2003/164—Oxygen
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- F27D3/00—Charging; Discharging; Manipulation of charge
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Abstract
Description
도 1은 본 발명의 실시예에 따른 야금 전기로의 구조를 나타내는 도면으로서, A 지점의 화살표는 산소 가스가 용융 슬래그 내부로 취입되는 방향을 나타내고, B 지점의 화살표는 미분탄이 용융 슬래그 내부로 분사되는 방향을 나타낸다;
도 2는 도 1에 도시된 야금 전기로의 탑뷰 구조를 나타내는 도면으로서, C 지점의 화살표는 산소 가스와 미분탄이 용융 슬래그 내부로 분사되는 방향을 나타낸다;
도 3은 본 발명의 실시예에 따른 야금 전기로의 부분 탑뷰 구조를 나타내는 도면으로서, D 지점의 화살표는 탄화수소 화합물이 노 프리보드로 취입되는 방향을 나타낸다.
여기서, 도 1 내지 도 3 중 도면부호와 부재 명칭 사이의 대응관계는 아래와 같다.
1 노 챔버, 11 측벽, 2 전극, 3 용융 슬래그, 4 금속액.
실시예 | - | 실시예 1 | 실시예 2 |
원료 | - | 직접 석탄드 재료 투입 |
예비환원 핫 재료 투입 |
금속화율 | % | 0 | 85 |
노 진입 온도 | ℃ | 25 | 650 |
철 획득량 | tph | 1.2 | 2.9 |
슬래그 획득량 | tph | 0.8 | 1.9 |
전력 | MW | 2.4 | 1.9 |
화학 에너지 파워 | MW | 4.1 | 4.6 |
총 파워 | MW | 6.5 | 6.5 |
산소가스 취입 분사량 | Nm3/h | 1435 | 1607 |
천연가스 취입 분사량 | Nm3/h | 323 | 354 |
유연탄 취입 분사량 | tph | 2.0 | 2.2 |
무연탄 투입량 | tph | 0.59 | 0.35 |
질소 가스 소모량 | Nm3/h | 198 | 222 |
전기로 연기 유량 | Nm3/h | 6302 | 6394 |
CO | Vol% | 59 | 57 |
H2 | Vol% | 29 | 30 |
N2 | Vol% | 7 | 7 |
CO2 | Vol% | 3 | 4 |
H2O | Vol% | 2 | 2 |
Claims (11)
- 노 챔버를 구비하는 노체;
상기 노 챔버의 측벽 상에 위치하여, 제련 과정에서 생성되는 용융 슬래그 내부로 산소를 취입하되, 산소 랜스의 출구가 상기 용융 슬래그보다 높게 배치되는 산소 랜스; 및
상기 노 챔버의 측벽 상에 위치하여, 상기 용융 슬래그 내부로 석탄을 분사하되, 석탄 랜스의 출구가 상기 용융 슬래그보다 높게 배치되는 석탄 랜스;를 포함하는 것을 특징으로 하는 야금 전기로. - 제1항에 있어서,
상기 노 챔버의 측벽을 따라 균일하게 분포된 복수의 상기 산소 랜스; 및
상기 노 챔버의 측벽을 따라 균일하게 분포된 복수의 상기 석탄 랜스를 포함하되;
여기서, 상기 산소 랜스가 상기 석탄 랜스의 하방에 위치하거나, 상기 산소 랜스와 상기 석탄 랜스가 상기 노 챔버의 측벽의 동일한 높이 상에 위치하는 것을 특징으로 하는 야금 전기로. - 제1항 또는 제2항에 있어서,
상기 노 챔버의 측벽 상에 위치하여, 노 프리보드 내부로 탄화수소 화합물을 취입 분사하되, 노즐의 출구가 상기 용융 슬래그보다 높게 배치되는 노즐을 더 포함하는 것을 특징으로 하는 야금 전기로. - 제3항에 있어서,
상기 탄화수소 화합물의 상기 노 프리보드 내부로의 취입 분사 방향과 상기 노 챔버의 측벽이 서로 접하는 것을 특징으로 하는 야금 전기로. - 제1항 내지 제4항 중 어느 한 항에 따른 야금 전기로에 사용되는 제련 방법에 있어서,
용융 슬래그 내에 산소 가스에 의해 산화될 수 있는 환원 상태 물질을 포함하고, 상기 제련 방법은,
산소 랜스를 통해 상기 용융 슬래그 내부로 산소를 취입하여, 상기 환원 상태 물질을 산화 상태 물질로 산화시키는 단계와;
석탄 랜스를 통해 상기 용융 슬래그 내부로 석탄을 분사하여, 산화된 상기 산화 상태 물질을 환원시키는 단계를 포함하는 것을 특징으로 하는 제련 방법. - 제5항에 있어서,
산소가 상기 용융 슬래그에 취입되는 깊이는 상기 용융 슬래그 두께의 2분의 1을 초과하지 않는 것을 특징으로 하는 제련 방법. - 제6항에 있어서,
산소가 상기 용융 슬래그에 취입되는 깊이는 상기 용융 슬래그 두께의 3분의 1 내지 상기 용융 슬래그 두께의 2분의 1의 범위 내에 위치하는 것을 특징으로 하는 제련 방법. - 제5항에 있어서,
상기 석탄은 무연탄 또는 유연탄인 것을 특징으로 하는 제련 방법. - 제5항 내지 제8항 중 어느 한 항에 있어서,
상기 석탄 랜스를 통해 상기 용융 슬래그 내부로 석탄을 분사한 후,
노즐을 통해 노 프리보드 내부로 탄화수소 화합물을 취입 분사하는 단계를 더 포함하는 것을 특징으로 하는 제련 방법. - 제9항에 있어서,
상기 탄화수소 화합물은 천연가스 또는 경유를 포함하는 것을 특징으로 하는 제련 방법. - 제9항에 있어서,
노즐을 사용하여 상기 노 프리보드 내부로 탄화수소 화합물을 취입 분사함과 동시에,
상기 노즐을 통하여 상기 노 프리보드 내부로 액상의 물 및/또는 기체 상태의 물을 취입 분사하는 단계를 더 포함하는 것을 특징으로 하는 제련 방법.
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CN201610515542.1A CN106119543B (zh) | 2016-07-01 | 2016-07-01 | 冶金电炉及熔炼方法 |
PCT/CN2017/084396 WO2018000973A1 (zh) | 2016-07-01 | 2017-05-15 | 冶金电炉及熔炼方法 |
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CN106119543B (zh) * | 2016-07-01 | 2019-03-08 | 北京中凯宏德科技有限公司 | 冶金电炉及熔炼方法 |
CN108330273A (zh) * | 2018-05-07 | 2018-07-27 | 段志松 | 一种铁矿石焙烧磁化方法及设备 |
CN109929957B (zh) * | 2019-03-28 | 2020-11-06 | 东北大学 | 一种预还原铁矿石高温熔炼生产铁水的装置及方法 |
CN112251610A (zh) * | 2020-09-24 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种碳化钛渣及其冶炼方法 |
CN112880400B (zh) * | 2021-03-15 | 2024-08-09 | 金川集团镍钴有限公司 | 一种采用氧气顶吹熔炼冰铜的熔炼炉及熔炼方法 |
CN113403447A (zh) * | 2021-06-21 | 2021-09-17 | 宁夏金圆化工有限公司 | 一种特种高纯硅铁提纯装置及方法 |
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US20190161816A1 (en) | 2019-05-30 |
RU2019102258A3 (ko) | 2020-08-03 |
CN106119543A (zh) | 2016-11-16 |
ZA201900361B (en) | 2020-10-28 |
JP2019525112A (ja) | 2019-09-05 |
RU2019102258A (ru) | 2020-08-03 |
AU2017288268A1 (en) | 2019-01-31 |
EP3480325A1 (en) | 2019-05-08 |
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CN106119543B (zh) | 2019-03-08 |
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