JPS569314A - Recovery system for converter gas - Google Patents

Recovery system for converter gas

Info

Publication number
JPS569314A
JPS569314A JP8383279A JP8383279A JPS569314A JP S569314 A JPS569314 A JP S569314A JP 8383279 A JP8383279 A JP 8383279A JP 8383279 A JP8383279 A JP 8383279A JP S569314 A JPS569314 A JP S569314A
Authority
JP
Japan
Prior art keywords
gas
converter
diluting
flow rate
blast furnace
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.)
Pending
Application number
JP8383279A
Other languages
Japanese (ja)
Inventor
Koichi Shimamura
Mikiro Kishita
Katsuhiko Kaburagi
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 JP8383279A priority Critical patent/JPS569314A/en
Publication of JPS569314A publication Critical patent/JPS569314A/en
Pending legal-status Critical Current

Links

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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

PURPOSE:To permit the recovery of converter gas as well as to raise its recover efficiency by diluting an oxygen-rich converter gases during the initial and end periods of the converter operaton with an oxygen-lean blast furnace gas. CONSTITUTION:The waste gas from the converter 1 is measured for its flow rate V1 and its O2 concentration X1 by means of the flow meter 4 and the O2 meter 5 because the O2 content of the waste gas is quite harmful during the initail and end periods of the operation. The measured values are then put in the arithmetic unit 6 to calculate the flow rate V2 of a blast furnace gas for diluting the waste gas to an O2 content at which harm could be obviated. When the value V2 exceeds the suppliable flow rate Vo of the diluting gas, the valve 4 is closed to stop the dilution by the blast furnace gas and then the O2 content is compared with the safety limit O2 concentration X0 by the comparator 20. If X1 is dangerously larger than X0, the waste gas is discharged from the stack 2. When the flow rate V2 of the diluting gas becomes smaller than V0, the valve 4 is opened, the blast furnace gas is put from the gas holder 9 into the mixer 7, and the waste gas is diluted to the safety limit O2 concentration and then stored in the gas holder 22.
JP8383279A 1979-06-29 1979-06-29 Recovery system for converter gas Pending JPS569314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8383279A JPS569314A (en) 1979-06-29 1979-06-29 Recovery system for converter gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8383279A JPS569314A (en) 1979-06-29 1979-06-29 Recovery system for converter gas

Publications (1)

Publication Number Publication Date
JPS569314A true JPS569314A (en) 1981-01-30

Family

ID=13813661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8383279A Pending JPS569314A (en) 1979-06-29 1979-06-29 Recovery system for converter gas

Country Status (1)

Country Link
JP (1) JPS569314A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183683A (en) * 1983-03-25 1984-10-18 ブラウン・アンド・ウイリアムソン・タバコ・コ−ポレ−シヨン Ventilation filter and smoke diffusion type suction piece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183683A (en) * 1983-03-25 1984-10-18 ブラウン・アンド・ウイリアムソン・タバコ・コ−ポレ−シヨン Ventilation filter and smoke diffusion type suction piece

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