JPS6475617A - Melting and refining method for scrap - Google Patents

Melting and refining method for scrap

Info

Publication number
JPS6475617A
JPS6475617A JP23354987A JP23354987A JPS6475617A JP S6475617 A JPS6475617 A JP S6475617A JP 23354987 A JP23354987 A JP 23354987A JP 23354987 A JP23354987 A JP 23354987A JP S6475617 A JPS6475617 A JP S6475617A
Authority
JP
Japan
Prior art keywords
gas
scrap
duct
refining
packing zone
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
JP23354987A
Other languages
Japanese (ja)
Other versions
JP2560668B2 (en
Inventor
Yasuo Kamei
Tomio Miyazaki
Hideyuki Yamaoka
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 JP23354987A priority Critical patent/JP2560668B2/en
Publication of JPS6475617A publication Critical patent/JPS6475617A/en
Application granted granted Critical
Publication of JP2560668B2 publication Critical patent/JP2560668B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Abstract

PURPOSE:To obtain molten steel having high C and low S under high heat efficiency by burning reducing gas generated with coke combustion by gas for aiding combustion in a cylindrical furnace and changing only exhaust dust to duct for refining after melting scrap, to execute the refining. CONSTITUTION:The exhaust duct 1-2 is connected with the furnace body 1 and the coke is charged from the changing hole 1-3 to level above gas blowing nozzles 2-1 at the lowest step and the scrap is charged on the coke packing zone 4 into the duct 1-2 to form the scrap packing zone 5. Next, the gas for aiding combustion is blown from the nozzles 2-1 and/or furnace bottom tuyeres 3 at the furnace bottom to generate CO gas and when the CO gas invades into the scrap packing zone 5, the gas for aiding combustion is blown from nozzles 2-2 at upper step facing the packing zone 5 to burn CO gas, and the scrap is melted to store the droplet into molten basin 6. After completing melting, the duct 1-2 is changed to the gas exhaust duct 1-5 providing top blowing lance 1-6 for refining and oxygen is blown from the lance 1-6 and refined to make the molten steel 7.
JP23354987A 1987-09-17 1987-09-17 Smelting and refining method Expired - Lifetime JP2560668B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23354987A JP2560668B2 (en) 1987-09-17 1987-09-17 Smelting and refining method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23354987A JP2560668B2 (en) 1987-09-17 1987-09-17 Smelting and refining method

Publications (2)

Publication Number Publication Date
JPS6475617A true JPS6475617A (en) 1989-03-22
JP2560668B2 JP2560668B2 (en) 1996-12-04

Family

ID=16956802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23354987A Expired - Lifetime JP2560668B2 (en) 1987-09-17 1987-09-17 Smelting and refining method

Country Status (1)

Country Link
JP (1) JP2560668B2 (en)

Also Published As

Publication number Publication date
JP2560668B2 (en) 1996-12-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term