GB1478762A - Recirculating type furnace - Google Patents

Recirculating type furnace

Info

Publication number
GB1478762A
GB1478762A GB15446/75A GB1544675A GB1478762A GB 1478762 A GB1478762 A GB 1478762A GB 15446/75 A GB15446/75 A GB 15446/75A GB 1544675 A GB1544675 A GB 1544675A GB 1478762 A GB1478762 A GB 1478762A
Authority
GB
United Kingdom
Prior art keywords
chamber
type furnace
nozzles
heater
recirculating type
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.)
Expired
Application number
GB15446/75A
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.)
Bloom Engineering Co Inc
Original Assignee
Bloom Engineering Co Inc
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 Bloom Engineering Co Inc filed Critical Bloom Engineering Co Inc
Publication of GB1478762A publication Critical patent/GB1478762A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • 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
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

1478762 Recirculating type furnace BLOOM ENG CO Inc 15 April 1975 [14 Aug 1974] 15446/75 Heading F4B A furnace chamber 21<SP>1</SP> with an exhaust port 24 has a pressurized external recirculating system arranged so that a hot fan 34 passes exhaust gases to a heater 33 which reheats the circulating gases before they are returned to the chamber via the gas line 44, cross header 31 and nozzles 29. The gas velocity at the nozzles is at least 100 ft/sec and causes sufficient turbulence to assume a uniform temperature throughout the chamber 21. The heater 33 includes one or more burners for a variety of fuels.
GB15446/75A 1974-08-14 1975-04-15 Recirculating type furnace Expired GB1478762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497320A US3920382A (en) 1974-08-14 1974-08-14 Method and apparatus for heat treating articles in a recirculating type furnace

Publications (1)

Publication Number Publication Date
GB1478762A true GB1478762A (en) 1977-07-06

Family

ID=23976380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15446/75A Expired GB1478762A (en) 1974-08-14 1975-04-15 Recirculating type furnace

Country Status (5)

Country Link
US (1) US3920382A (en)
JP (1) JPS5121511A (en)
CA (1) CA1014733A (en)
DE (1) DE2457152B2 (en)
GB (1) GB1478762A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218211A (en) * 1976-10-12 1980-08-19 Caplan Energy Recovery Systems Limited Energy recovery system
US4310301A (en) * 1980-11-19 1982-01-12 Midland-Ross Corporation Combination burner and exhaust gas recirculation system for a carbottom furnace
DE3339585C1 (en) * 1983-11-02 1987-11-12 Didier Engineering Gmbh, 4300 Essen Furnace for reheating pipes, special profiles and similar goods to be reheated
US4733481A (en) * 1984-01-09 1988-03-29 Gladd Industries, Inc. Paint bake oven
DE3441289A1 (en) * 1984-04-24 1985-10-31 Paul Schneider Rohrleitungsbau GmbH, 8633 Rödental Method for the physical and/or chemical influencing and/or treatment of stacked or piled material by means of flowing media
JPS62152564A (en) * 1985-12-27 1987-07-07 Trinity Ind Corp Drying oven for painting
DE3629836A1 (en) * 1986-09-02 1988-03-03 Manfred Leisenberg Kg Method and arrangement for evening out the temperatures of periodically operated furnaces
US4828483B1 (en) * 1988-05-25 1994-03-22 Bloom Eng Co Inc Method and apparatus for suppressing nox formation in regenerative burners
FI112112B (en) 2000-09-11 2003-10-31 Outokumpu Oy Apparatus and method for heating gas in a gas duct during continuous sintering
US9863013B2 (en) * 2011-02-22 2018-01-09 Linde Aktiengesellschaft Apparatus and method for heating a blast furnace stove
KR101654158B1 (en) * 2013-07-15 2016-09-09 주식회사 포스코 Apparatus for heating slow cooling section in continuous annealing furnace
US20180149355A1 (en) * 2016-11-28 2018-05-31 Neeraj Saxena Heat treatment process with oxygen enhancement of air-fuel burners

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512326A (en) * 1947-03-06 1950-06-20 James A Harrison Industrial gas-fired air heater
US3168298A (en) * 1961-07-03 1965-02-02 Norton Co Tunnel kiln and method of operation
US3198855A (en) * 1962-04-24 1965-08-03 Loftus Engineering Corp Method of operating soaking pits
US3186694A (en) * 1962-06-28 1965-06-01 Midland Ross Corp Temperature control system for jet convection strip heating furnace
US3515380A (en) * 1968-08-01 1970-06-02 Thermo Electron Corp Radiant-tube furnace
US3581679A (en) * 1968-12-02 1971-06-01 Winkler Kg F Oven apparatus
JPS5118205B2 (en) * 1972-03-03 1976-06-08

Also Published As

Publication number Publication date
DE2457152B2 (en) 1978-02-23
CA1014733A (en) 1977-08-02
DE2457152A1 (en) 1976-02-26
US3920382A (en) 1975-11-18
JPS5121511A (en) 1976-02-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee