JPS5449902A - Preheating system for air for combustion in hot stove - Google Patents

Preheating system for air for combustion in hot stove

Info

Publication number
JPS5449902A
JPS5449902A JP11716277A JP11716277A JPS5449902A JP S5449902 A JPS5449902 A JP S5449902A JP 11716277 A JP11716277 A JP 11716277A JP 11716277 A JP11716277 A JP 11716277A JP S5449902 A JPS5449902 A JP S5449902A
Authority
JP
Japan
Prior art keywords
temperature
air
combustion
hot stove
preheater
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
JP11716277A
Other languages
Japanese (ja)
Inventor
Susumu Nakamura
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 JP11716277A priority Critical patent/JPS5449902A/en
Publication of JPS5449902A publication Critical patent/JPS5449902A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B9/00—Stoves for heating the blast in blast furnaces
    • C21B9/14—Preheating the combustion air

Abstract

PURPOSE:To stabilize the temperature of the preheated air always at a constant temperature, by detecting the temperature of the preheated air entering into the hot stove for blast furnace and actuating the supplementary preheater when the above temperature is low. CONSTITUTION:The waste gas 5 of high temperature from the hot stove 1 gets away to the stack 8 through the intercepting valve 4, but on the other hand, a part of the above gas is released to the stack 8 passing through the air preheater 9 though the ducts 6 and 7. The air 11 for combustion in the hot stove is heated at the air preheater 9 and enters into the hot stove 1 passing through the main pipe 19 for the air for combustion. At this time, the timeperature of the preheated air 13 is measured with the temperature detector 18 and is compared with the temperature of the temperature setter 16 with the controller 17 for combustion. At the case where the temperature of the preheated air 13 is lower than the above set temperature, by controlling the operation of the supplementary preheater 14 with the controller 15 for combustion on the basis of that signal, the timperature of the preheated air 19 is maintained always at a definite set temperature. As the result, the amount of coke oven gas for combustion is saved and the state of operation of the furnace is stabilized.
JP11716277A 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove Pending JPS5449902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11716277A JPS5449902A (en) 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11716277A JPS5449902A (en) 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove

Publications (1)

Publication Number Publication Date
JPS5449902A true JPS5449902A (en) 1979-04-19

Family

ID=14704978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11716277A Pending JPS5449902A (en) 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove

Country Status (1)

Country Link
JP (1) JPS5449902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537605A1 (en) * 1982-12-14 1984-06-15 Didier Werke Ag METHOD AND DEVICE FOR PREHEATING COMBUSTION AGENTS, ESPECIALLY FOR HEATING COWPERS OF HIGH FURNACES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537605A1 (en) * 1982-12-14 1984-06-15 Didier Werke Ag METHOD AND DEVICE FOR PREHEATING COMBUSTION AGENTS, ESPECIALLY FOR HEATING COWPERS OF HIGH FURNACES

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