JPS5620107A - Recovering method of gas for uniform pressure exhausting of blast furnace - Google Patents

Recovering method of gas for uniform pressure exhausting of blast furnace

Info

Publication number
JPS5620107A
JPS5620107A JP9439979A JP9439979A JPS5620107A JP S5620107 A JPS5620107 A JP S5620107A JP 9439979 A JP9439979 A JP 9439979A JP 9439979 A JP9439979 A JP 9439979A JP S5620107 A JPS5620107 A JP S5620107A
Authority
JP
Japan
Prior art keywords
pressure
gas
furnace top
control unit
sapce
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
JP9439979A
Other languages
Japanese (ja)
Other versions
JPS5748617B2 (en
Inventor
Manabu Takahashi
Katsuya Ito
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 JP9439979A priority Critical patent/JPS5620107A/en
Publication of JPS5620107A publication Critical patent/JPS5620107A/en
Publication of JPS5748617B2 publication Critical patent/JPS5748617B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/007—Controlling or regulating of the top pressure

Abstract

PURPOSE:To prevent pollution and enhance economical effect by recovering and temporarily storing B gas at the pressure equalizing and feeding the recovered gas again into the furnace top sapce at the pressure filling. CONSTITUTION:At the charging of raw materials, the motor of a compressor 23 is run by the operation command from a control unit 3, by which the B gas in a furnace top sapce 14 is drawn and is recovered into a pressure tank 25. The pressure drop of the furnace top space 14 is detected by a pressure gauge 4 and the detected value is inputted to a control unit 3. At the time when the pressure becomes equal to the atmospheric pressure, the suction of the compressor 23 is stopped by the control unit 3 and a sealing valve 12 is opened to charge blast furnace raw materials through a surge hopper 11. Thence, the sealing valve 12 is again closed. When the closing signal is sent to the control unit 3, the unit commands open to a shutoff valve 26, thereby returning the B gas having been recovered into the pressure tank 25 into the furnace top sapce 14. At the time when the feeding of the B gas is completed, the furnace top spacing is filled to the original in-furnace pressure.
JP9439979A 1979-07-25 1979-07-25 Recovering method of gas for uniform pressure exhausting of blast furnace Granted JPS5620107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9439979A JPS5620107A (en) 1979-07-25 1979-07-25 Recovering method of gas for uniform pressure exhausting of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9439979A JPS5620107A (en) 1979-07-25 1979-07-25 Recovering method of gas for uniform pressure exhausting of blast furnace

Publications (2)

Publication Number Publication Date
JPS5620107A true JPS5620107A (en) 1981-02-25
JPS5748617B2 JPS5748617B2 (en) 1982-10-16

Family

ID=14109177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9439979A Granted JPS5620107A (en) 1979-07-25 1979-07-25 Recovering method of gas for uniform pressure exhausting of blast furnace

Country Status (1)

Country Link
JP (1) JPS5620107A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064090A1 (en) * 1981-05-05 1982-11-10 MANNESMANN Aktiengesellschaft Pressure equalizer for shaft furnaces operating at a pressure higher than the atmospheric pressure, especially blast furnaces
JPS5825409A (en) * 1981-08-06 1983-02-15 Kobe Steel Ltd Pressure equalizing method for top pressure equalizing chamber of blast furnace
LU92316B1 (en) * 2013-11-27 2015-05-28 Wurth Paul Sa Method and device for equalizing the pressure in a charging system of a blast furnace
WO2023061027A1 (en) * 2021-10-12 2023-04-20 中冶南方工程技术有限公司 Blast furnace top material tank pressure equalization gas purification and recovery system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064090A1 (en) * 1981-05-05 1982-11-10 MANNESMANN Aktiengesellschaft Pressure equalizer for shaft furnaces operating at a pressure higher than the atmospheric pressure, especially blast furnaces
JPS5825409A (en) * 1981-08-06 1983-02-15 Kobe Steel Ltd Pressure equalizing method for top pressure equalizing chamber of blast furnace
LU92316B1 (en) * 2013-11-27 2015-05-28 Wurth Paul Sa Method and device for equalizing the pressure in a charging system of a blast furnace
WO2023061027A1 (en) * 2021-10-12 2023-04-20 中冶南方工程技术有限公司 Blast furnace top material tank pressure equalization gas purification and recovery system and method

Also Published As

Publication number Publication date
JPS5748617B2 (en) 1982-10-16

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