JPS57185908A - Equalizing method for top pressure of blast furnace - Google Patents

Equalizing method for top pressure of blast furnace

Info

Publication number
JPS57185908A
JPS57185908A JP7018081A JP7018081A JPS57185908A JP S57185908 A JPS57185908 A JP S57185908A JP 7018081 A JP7018081 A JP 7018081A JP 7018081 A JP7018081 A JP 7018081A JP S57185908 A JPS57185908 A JP S57185908A
Authority
JP
Japan
Prior art keywords
blast furnace
high pressure
hot stove
waste gas
gas
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
JP7018081A
Other languages
Japanese (ja)
Inventor
Yasuyuki Yamaguchi
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP7018081A priority Critical patent/JPS57185908A/en
Publication of JPS57185908A publication Critical patent/JPS57185908A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

PURPOSE:To eliminate the need for BGR devices and to improve the recovery efficiency of the heat energy retained by blast furnace gases by utilizing the waste gas from a hot stove under high pressure operation as a primary pressure equalizing source for the atmosphere in a raw material charging hopper at the top of a blast furnace. CONSTITUTION:In general, the blast furnace gas discharged from a blast furnace 1 is reduced of pressure in a turbine 5 or a septum valve 6 via a dust remover 3 and a Venturi scrubber 4, after which it is fed to a gas holder 12 via an electrical dust precipitator 7. The blast furnace gas of a relatively high pressure after the primary dust removal on the upper stream side of a turbine 5 is branched and is supplied as a fuel for a hot stove to the combustion chamber 9 of the hot stove. This is mixed and burned with the air fed by a separately installed high pressure blower 18, whereby the high pressure operation of the hot stove is made possible. The high pressure waste gas of combustion from the hot stove is supplied to a small bell hopper via a pressure equalizing valve 34 through a line 30a branched from the middle of a waste gas line 13a.
JP7018081A 1981-05-12 1981-05-12 Equalizing method for top pressure of blast furnace Pending JPS57185908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7018081A JPS57185908A (en) 1981-05-12 1981-05-12 Equalizing method for top pressure of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7018081A JPS57185908A (en) 1981-05-12 1981-05-12 Equalizing method for top pressure of blast furnace

Publications (1)

Publication Number Publication Date
JPS57185908A true JPS57185908A (en) 1982-11-16

Family

ID=13424065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7018081A Pending JPS57185908A (en) 1981-05-12 1981-05-12 Equalizing method for top pressure of blast furnace

Country Status (1)

Country Link
JP (1) JPS57185908A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175855A2 (en) * 1984-09-26 1986-04-02 MANNESMANN Aktiengesellschaft Blast furnace plant
CN1325178C (en) * 2002-09-24 2007-07-11 无锡市东方环境工程设计研究所有限公司 Electric stove dust elimination inside and outside discharge mixed abbreviated process
KR101087127B1 (en) 2009-04-27 2011-11-25 현대제철 주식회사 Sludge filter for blast furnace and filtering method thereof
LU92525B1 (en) * 2014-08-19 2016-02-22 Wurth Paul Sa Blast furnace plant
LU100035B1 (en) * 2017-01-25 2018-08-14 Wurth Paul Sa Shaft Furnace Plant With Full Recovery Pressure Equalizing System
LU102438B1 (en) * 2021-01-20 2022-07-20 Wurth Paul Sa Method for operating a blast furnace plant

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175855A2 (en) * 1984-09-26 1986-04-02 MANNESMANN Aktiengesellschaft Blast furnace plant
CN1325178C (en) * 2002-09-24 2007-07-11 无锡市东方环境工程设计研究所有限公司 Electric stove dust elimination inside and outside discharge mixed abbreviated process
KR101087127B1 (en) 2009-04-27 2011-11-25 현대제철 주식회사 Sludge filter for blast furnace and filtering method thereof
LU92525B1 (en) * 2014-08-19 2016-02-22 Wurth Paul Sa Blast furnace plant
WO2016026869A1 (en) * 2014-08-19 2016-02-25 Paul Wurth S.A. Blast furnace plant
LU100035B1 (en) * 2017-01-25 2018-08-14 Wurth Paul Sa Shaft Furnace Plant With Full Recovery Pressure Equalizing System
LU102438B1 (en) * 2021-01-20 2022-07-20 Wurth Paul Sa Method for operating a blast furnace plant
WO2022157221A1 (en) * 2021-01-20 2022-07-28 Paul Wurth S.A. Method for operating a blast furnace plant

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