JPS572833A - Supplying device of inert gas to heat treatment furnace - Google Patents

Supplying device of inert gas to heat treatment furnace

Info

Publication number
JPS572833A
JPS572833A JP7506780A JP7506780A JPS572833A JP S572833 A JPS572833 A JP S572833A JP 7506780 A JP7506780 A JP 7506780A JP 7506780 A JP7506780 A JP 7506780A JP S572833 A JPS572833 A JP S572833A
Authority
JP
Japan
Prior art keywords
gas
combustion
oxygen
high temp
heat treatment
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
JP7506780A
Other languages
Japanese (ja)
Inventor
Takayuki Ujiie
Tetsuo Suzuki
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.)
Sumitomo Light Metal Industries Ltd
Original Assignee
Sumitomo Light Metal Industries Ltd
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 Sumitomo Light Metal Industries Ltd filed Critical Sumitomo Light Metal Industries Ltd
Priority to JP7506780A priority Critical patent/JPS572833A/en
Publication of JPS572833A publication Critical patent/JPS572833A/en
Pending 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C21D1/763—Adjusting the composition of the atmosphere using a catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

PURPOSE:To make an inert gas of extremely small contents of oxygen and effectively utilize the same as a high temp. gas for heat treatment furnaces by passing a high temp. waste combustion gas to a combustion device having catalysts, and using the residual oxygen for combustion. CONSTITUTION:Radiant tubes 2 are disposed in a heat treatment furnace 1, and the high temp. gas burned by burners 5 is passed therethrough, thereby indirectly heating the inside of the furnace 1. The wate combustion gas is sucked by a fan 4, and part thereof is released through anexhaust passage 6. The remaining part is put into a combustion device 12 through an oxygen analyzer 8. In the device 8, the amount of residual oxygen in the waste combustion gas is analyzed, and by the value thereof, the valve 9 of a combustion supply passage 11 for kerosene, LPG, etc. is regulated and the fuel conforming to the residual oxygen is fed to the device 12, where the kerosene or the like is burned by the residual oxygen in the presence of oxidation catalysts such as Pt or V, whereby the content of oxygen is considerably reduced. Next, moisture contents, sulfur, etc. are removed with a purifier, and the gas is introduced as a clean inert gas of high temp. into the furnace 1.
JP7506780A 1980-06-04 1980-06-04 Supplying device of inert gas to heat treatment furnace Pending JPS572833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7506780A JPS572833A (en) 1980-06-04 1980-06-04 Supplying device of inert gas to heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7506780A JPS572833A (en) 1980-06-04 1980-06-04 Supplying device of inert gas to heat treatment furnace

Publications (1)

Publication Number Publication Date
JPS572833A true JPS572833A (en) 1982-01-08

Family

ID=13565479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7506780A Pending JPS572833A (en) 1980-06-04 1980-06-04 Supplying device of inert gas to heat treatment furnace

Country Status (1)

Country Link
JP (1) JPS572833A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067349U (en) * 1983-10-14 1985-05-13 大阪瓦斯株式会社 Atmospheric heat treatment furnace
JPS6129608A (en) * 1984-07-20 1986-02-10 Babcock Hitachi Kk Catalytic combustion device for heating furnace
JPS6167715A (en) * 1984-09-11 1986-04-07 Ngk Insulators Ltd Atmospheric oven
JPH01184221A (en) * 1988-01-14 1989-07-21 Komatsu Ltd Control device for atmosphere in fluidized bed furnace
JP2006150045A (en) * 2004-11-02 2006-06-15 Kongo Co Ltd Base isolating device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100915A (en) * 1975-03-04 1976-09-06 Sky Aluminium Yakinamashironi okeru haishutsugasuno ryohoho
JPS5294869A (en) * 1976-02-04 1977-08-09 Rozai Kogyo Kk Method of regenerating and recycling inert gas in heating furnace
JPS5391430A (en) * 1977-01-22 1978-08-11 Ngk Insulators Ltd Air fuel ratio control device for combustion furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100915A (en) * 1975-03-04 1976-09-06 Sky Aluminium Yakinamashironi okeru haishutsugasuno ryohoho
JPS5294869A (en) * 1976-02-04 1977-08-09 Rozai Kogyo Kk Method of regenerating and recycling inert gas in heating furnace
JPS5391430A (en) * 1977-01-22 1978-08-11 Ngk Insulators Ltd Air fuel ratio control device for combustion furnace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067349U (en) * 1983-10-14 1985-05-13 大阪瓦斯株式会社 Atmospheric heat treatment furnace
JPS641949Y2 (en) * 1983-10-14 1989-01-18
JPS6129608A (en) * 1984-07-20 1986-02-10 Babcock Hitachi Kk Catalytic combustion device for heating furnace
JPS6167715A (en) * 1984-09-11 1986-04-07 Ngk Insulators Ltd Atmospheric oven
JPH01184221A (en) * 1988-01-14 1989-07-21 Komatsu Ltd Control device for atmosphere in fluidized bed furnace
JP2006150045A (en) * 2004-11-02 2006-06-15 Kongo Co Ltd Base isolating device

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