JPS54135602A - Pressure-increasing method for hot stove - Google Patents

Pressure-increasing method for hot stove

Info

Publication number
JPS54135602A
JPS54135602A JP4291778A JP4291778A JPS54135602A JP S54135602 A JPS54135602 A JP S54135602A JP 4291778 A JP4291778 A JP 4291778A JP 4291778 A JP4291778 A JP 4291778A JP S54135602 A JPS54135602 A JP S54135602A
Authority
JP
Japan
Prior art keywords
valve
blast
air
hot
hot stove
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
JP4291778A
Other languages
Japanese (ja)
Inventor
Masami Matsukawa
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP4291778A priority Critical patent/JPS54135602A/en
Publication of JPS54135602A publication Critical patent/JPS54135602A/en
Pending legal-status Critical Current

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  • Regulation And Control Of Combustion (AREA)

Abstract

PURPOSE: To prevent the back flow of molten slag contained in a blast furnace to a hot stove because of a small blast press., by sealing air in the hot stove for a blast furnace after heat-accumulation, and by isolating the stove from outside so as to heat and pressurize the air.
CONSTITUTION: A press. detector 6 for use in heating and pressurizing is connected to a hot blast valve 5 set up between a blast furnace and a hot stove 1. A combustion-air-shutoff valve 7, a burner-shutoff valve 8, a fuel-gas-shutoff valve 9, and a flue valve 11 are opened, and a blast valve 10, the hot blast valve 5 are closed. The fuel is fed from a pipe 14 to a burner 15, where it is burned with combustion air sent by a fan 4 in order to heat bricks in the hot stove and the heat is accumulated. With the blast valve 10, a hot blast valve 5 closed, the burner-shutoff valve 8, the fuel-gas-shutoff valve 9, ant the flue valve 11 are closed, then with the air- shutoff-valve 7 opened, the fan 4 is driven in order to feed air into the hot stove, hereafter the air-shutoff valve 7 is closed. The sealed air is heated and expanded so that it is pressurized. The press. is detected by the detector 6. When a hot stove press. higher than the blast furnace press. is detected, blast to the blast furnace is started.
COPYRIGHT: (C)1979,JPO&Japio
JP4291778A 1978-04-12 1978-04-12 Pressure-increasing method for hot stove Pending JPS54135602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4291778A JPS54135602A (en) 1978-04-12 1978-04-12 Pressure-increasing method for hot stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4291778A JPS54135602A (en) 1978-04-12 1978-04-12 Pressure-increasing method for hot stove

Publications (1)

Publication Number Publication Date
JPS54135602A true JPS54135602A (en) 1979-10-22

Family

ID=12649362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4291778A Pending JPS54135602A (en) 1978-04-12 1978-04-12 Pressure-increasing method for hot stove

Country Status (1)

Country Link
JP (1) JPS54135602A (en)

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