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1. (WO2018038508) METHOD FOR REFINING HOT METAL IN CONVERTOR
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/038508 International Application No.: PCT/KR2017/009162
Publication Date: 01.03.2018 International Filing Date: 22.08.2017
IPC:
C21C 7/068 (2006.01) ,C21C 5/30 (2006.01) ,C22C 38/02 (2006.01) ,C21C 7/00 (2006.01) ,F27D 3/16 (2006.01) ,F27D 7/02 (2006.01) ,F27D 19/00 (2006.01)
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
7
Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/-C21C5/118
04
Removing impurities by adding a treating agent
068
Decarburising
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5
Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
28
Manufacture of steel in the converter
30
Regulating or controlling the blowing
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
02
containing silicon
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
C
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
7
Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/-C21C5/118
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27
FURNACES; KILNS; OVENS; RETORTS
D
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
3
Charging; Discharging; Manipulation of charge
16
Introducing a fluid jet or current into the charge
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27
FURNACES; KILNS; OVENS; RETORTS
D
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
7
Forming, maintaining, or circulating atmospheres in heating chambers
02
Supplying steam, vapour, gases, or liquids
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27
FURNACES; KILNS; OVENS; RETORTS
D
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
19
Arrangement of controlling devices
Applicants:
현대제철 주식회사 HYUNDAI STEEL COMPANY [KR/KR]; 인천시 동구 중봉대로 63 63, Jungbong-daero Dong-gu Incheon 22525, KR
Inventors:
김경환 KIM, Kyung Hwan; KR
정권희 CHEONG, Gwon Hee; KR
변승용 BYUN, Seung Yong; KR
이상열 LEE, Sang Yeol; KR
전영덕 JEON, Young Duck; KR
Agent:
특허법인 아주 AJU INTERNATIONAL LAW & PATENT GROUP; 서울시 서초구 사임당로 174, 강남미래타워 12-13층 12-13th Floor, Gangnam Mirae Tower, 174 Saimdang-Ro Seocho-gu Seoul 06627, KR
Priority Data:
10-2016-010690223.08.2016KR
Title (EN) METHOD FOR REFINING HOT METAL IN CONVERTOR
(FR) PROCÉDÉ D'AFFINAGE DE MÉTAL CHAUD DANS UN CONVERTISSEUR
(KO) 전로에서의 용선 정련 방법
Abstract:
(EN) A method for refining hot metal in a convertor is disclosed. In one embodiment, the method for refining hot metal in a convertor comprises the steps of: pouring hot metal tapped from a blast furnace into a ladle to transfer the hot metal to a kanvara reactor (KR) facility, and introducing a desulfurizing agent to remove sulfur (S); charging the desulfurized hot metal into a pretreatment converter, and removing silicon (Si) from the hot metal by blowing oxygen into the hot metal; tapping the desiliconized hot metal; and charging the tapped hot metal into a decarburizing converter to remove carbon (C). The hot metal poured into the ladle contains 0.6 to 8.0 wt% of silicon (Si).
(FR) L'invention concerne un procédé d'affinage de métal chaud dans un convertisseur. Dans un mode de réalisation, le procédé d'affinage de métal chaud dans un convertisseur comprend les étapes consistant : à verser du métal chaud soutiré d'un haut-fourneau dans une poche de coulée pour transférer le métal chaud jusqu'à une installation de réacteur Kanvara (KR), et à introduire un agent de désulfuration pour éliminer le soufre (S) ; à charger le métal chaud désulfuré dans un convertisseur de prétraitement et à éliminer le silicium (Si) du métal chaud par soufflage d'oxygène dans le métal chaud ; à soutirer le métal chaud désilicié ; et à charger le métal chaud prélevé dans un convertisseur de décarburation pour éliminer le carbone (C). Le métal chaud versé dans la poche de coulée contient 0,6 à 8,0 % en poids de silicium (Si).
(KO) 전로에서의 용선 정련 방법에 대한 발명이 개시된다. 한 구체예에서 상기 전로에서의 용선 정련 방법은 고로에서 출선된 용선을 래들에 수선하여 KR 설비로 이동시켜, 탈황제를 투입하여 탈황(S) 처리하는 단계; 상기 탈황 처리된 용선을 예비처리 전로에 장입하고, 산소를 취입하여 용선을 취련하여, 탈실리콘(Si) 처리하는 단계; 상기 탈실리콘 처리된 용선을 출탕하는 단계; 및 상기 출탕된 용선을 탈탄 전로에 장입하여 탈탄(C) 처리하는 단계;를 포함한다. 상기 래들에 수선된 용선은 실리콘(Si): 0.6~8.0 중량%를 포함한다.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)