JPS6479313A - Method for blowing carbonaceous material to converter - Google Patents

Method for blowing carbonaceous material to converter

Info

Publication number
JPS6479313A
JPS6479313A JP23583887A JP23583887A JPS6479313A JP S6479313 A JPS6479313 A JP S6479313A JP 23583887 A JP23583887 A JP 23583887A JP 23583887 A JP23583887 A JP 23583887A JP S6479313 A JPS6479313 A JP S6479313A
Authority
JP
Japan
Prior art keywords
carbonaceous material
converter
material powder
blowing
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP23583887A
Other languages
Japanese (ja)
Other versions
JPH0819451B2 (en
Inventor
Minoru Ishikawa
Masaharu Anezaki
Hiroaki Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP62235838A priority Critical patent/JPH0819451B2/en
Publication of JPS6479313A publication Critical patent/JPS6479313A/en
Publication of JPH0819451B2 publication Critical patent/JPH0819451B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To uniformly blow carbonaceous material powder into a converter and to heat up the converter without eroding the converter refractories by blowing the carbonaceous material powder through a top blowing lance into the converter and specifying the height of blowing position and the ejection angle of the carbonaceous material powder. CONSTITUTION:Slag is formed in a molten metal 3 housed in the converter 1 and the molten metal is refined by top and bottom blowing. A carbonaceous material powder conveying line 13 is formed on the outside of the top blowing lance 5 which has an O2 line 10, an O2 nozzle for forming an O2 jet 6 and cooling water lines 8, 9 around the same and the carbonaceous material powder 7 such as coal powder, coke powder is blown from the nozzle 12 so that the molten steel 3 is heated up by the combustion thereof in the method for operating the above-mentioned converter 1. The blowing height position Hi of the above-mentioned carbonaceous material powder 7 is set at 0.5-1.1 times the height Ho from the bottom of the furnace up to the throat thereof. Furthermore, the ejection angle of the carbonaceous material powder 7 against the nozzle 12 in the blowing height position Hi is set within a + or -30 deg. range with respect to horizontal. The erosion of the refractories, the decrease in the calory of exhaust gases caused by the decreased content of CO, etc., are thereby prevented without degrading the heating-up function.
JP62235838A 1987-09-18 1987-09-18 Method of blowing carbonaceous powder into the converter Expired - Lifetime JPH0819451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62235838A JPH0819451B2 (en) 1987-09-18 1987-09-18 Method of blowing carbonaceous powder into the converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235838A JPH0819451B2 (en) 1987-09-18 1987-09-18 Method of blowing carbonaceous powder into the converter

Publications (2)

Publication Number Publication Date
JPS6479313A true JPS6479313A (en) 1989-03-24
JPH0819451B2 JPH0819451B2 (en) 1996-02-28

Family

ID=16992012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235838A Expired - Lifetime JPH0819451B2 (en) 1987-09-18 1987-09-18 Method of blowing carbonaceous powder into the converter

Country Status (1)

Country Link
JP (1) JPH0819451B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115786628A (en) * 2022-11-12 2023-03-14 甘肃酒钢集团宏兴钢铁股份有限公司 Method for top-purging furnace bottom by using carbon dioxide and oxygen mixture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167708A (en) * 1984-09-10 1986-04-07 Nippon Steel Corp Refining method of iron alloy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167708A (en) * 1984-09-10 1986-04-07 Nippon Steel Corp Refining method of iron alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115786628A (en) * 2022-11-12 2023-03-14 甘肃酒钢集团宏兴钢铁股份有限公司 Method for top-purging furnace bottom by using carbon dioxide and oxygen mixture

Also Published As

Publication number Publication date
JPH0819451B2 (en) 1996-02-28

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