JPS57143444A - Continuous heat treating furnace having convection type preheating zone - Google Patents

Continuous heat treating furnace having convection type preheating zone

Info

Publication number
JPS57143444A
JPS57143444A JP2801881A JP2801881A JPS57143444A JP S57143444 A JPS57143444 A JP S57143444A JP 2801881 A JP2801881 A JP 2801881A JP 2801881 A JP2801881 A JP 2801881A JP S57143444 A JPS57143444 A JP S57143444A
Authority
JP
Japan
Prior art keywords
combustion
zone
preheating
strip
preheating zone
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
JP2801881A
Other languages
Japanese (ja)
Other versions
JPS63493B2 (en
Inventor
Akira Furukawa
Kuniyasu Ikeda
Masanobu Inaoka
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP2801881A priority Critical patent/JPS57143444A/en
Publication of JPS57143444A publication Critical patent/JPS57143444A/en
Publication of JPS63493B2 publication Critical patent/JPS63493B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To save energy by using the combustion gases of a direct-fired type non-oxidatie heating zone for preheating of air for combustion then conducting the same to a convection type preheating zone proviced with combustion gas circulators and preheating a strip. CONSTITUTION:The waste gases of combustion out from a heat exchanger 10 are conducted through a duct 12' by a blower 11 for waste gases to a convection type preheating zone 16 provided before a direct-fired type non-oxidative heating zone 5. The waste gases of combustion introduced therein are sucked through inlet side ducts 20 by waste gas circulation blowers 17 provided by leaving intervals in the zone 16 and are blown through outlet side ducts 18 from wind boxes 19 having many blowing nozzle holes at high velocity onto a strip 1. Further, the combustion gases flow toward the inlet side of the preheating zone gradually, whereby the heat exchanging with the strip 1 of low temp. is effected. Therefore, the thermal efficiency is made higher by 5-15% than that in the prior art.
JP2801881A 1981-02-27 1981-02-27 Continuous heat treating furnace having convection type preheating zone Granted JPS57143444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2801881A JPS57143444A (en) 1981-02-27 1981-02-27 Continuous heat treating furnace having convection type preheating zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2801881A JPS57143444A (en) 1981-02-27 1981-02-27 Continuous heat treating furnace having convection type preheating zone

Publications (2)

Publication Number Publication Date
JPS57143444A true JPS57143444A (en) 1982-09-04
JPS63493B2 JPS63493B2 (en) 1988-01-07

Family

ID=12237013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2801881A Granted JPS57143444A (en) 1981-02-27 1981-02-27 Continuous heat treating furnace having convection type preheating zone

Country Status (1)

Country Link
JP (1) JPS57143444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575495A1 (en) * 1984-12-28 1986-07-04 Chugai Ro Kogyo Kaisha Ltd CONTINUOUS METAL RECOVERY OVEN

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575495A1 (en) * 1984-12-28 1986-07-04 Chugai Ro Kogyo Kaisha Ltd CONTINUOUS METAL RECOVERY OVEN

Also Published As

Publication number Publication date
JPS63493B2 (en) 1988-01-07

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