JPS5449904A - Preheating system for air for combustion in hot stove - Google Patents

Preheating system for air for combustion in hot stove

Info

Publication number
JPS5449904A
JPS5449904A JP11716477A JP11716477A JPS5449904A JP S5449904 A JPS5449904 A JP S5449904A JP 11716477 A JP11716477 A JP 11716477A JP 11716477 A JP11716477 A JP 11716477A JP S5449904 A JPS5449904 A JP S5449904A
Authority
JP
Japan
Prior art keywords
air
temperature
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
JP11716477A
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 JP11716477A priority Critical patent/JPS5449904A/en
Publication of JPS5449904A publication Critical patent/JPS5449904A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Air Supply (AREA)

Abstract

PURPOSE:To stabilize the preheating temperature of the air for combustion for the hot stove always at a constant temperature, by detecting the temperature of the preheated air for combustion entering into the hot stove for blast furnace and controlling the amount of the air entering into the air preheater. CONSTITUTION:The waste gas of high temperature from the hot stove 1 is released to the stack 5 through the intercepting valve 4 from the flue 3. Besides, in addition, the above waste gas is passed to the stack 5 passing through the air preheater 8 with the ducts 6 and 7. The air 13 for combustion in the hot stove 1 passes through the air preheater 8 with the ducts 10 and 9, and enters into the hot stove 1 after having been heated. At this time, the temperature of the air for combustion heated at the preheater 8 is measured with the temperature detector 18 and is compared with the set temperature of the temperature setter 20. In the case where the temperature of the preheated air is lower than the set temperature, the valve 15 is controlled in the direction for shutting with the operation of the combustion controller 19 and the valve driving gear 21. Accordingly, the amount of the air flowing through the air preheater 8 increases and the temperature of the preheated air 17 is stabilized always at the prescribed value, so that the amount of coke oven gas for combustion is saved and the state of operation of the furnace is stabilized.
JP11716477A 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove Pending JPS5449904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11716477A JPS5449904A (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
JP11716477A JPS5449904A (en) 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove

Publications (1)

Publication Number Publication Date
JPS5449904A true JPS5449904A (en) 1979-04-19

Family

ID=14705027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11716477A Pending JPS5449904A (en) 1977-09-29 1977-09-29 Preheating system for air for combustion in hot stove

Country Status (1)

Country Link
JP (1) JPS5449904A (en)

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