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EP0302480A3 - Auxiliary flue for furnaces - Google Patents

Auxiliary flue for furnaces Download PDF

Info

Publication number
EP0302480A3
EP0302480A3 EP88112655A EP88112655A EP0302480A3 EP 0302480 A3 EP0302480 A3 EP 0302480A3 EP 88112655 A EP88112655 A EP 88112655A EP 88112655 A EP88112655 A EP 88112655A EP 0302480 A3 EP0302480 A3 EP 0302480A3
Authority
EP
European Patent Office
Prior art keywords
furnace
furnaces
operational discharge
physical contaminants
auxiliary
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.)
Withdrawn
Application number
EP88112655A
Other languages
German (de)
French (fr)
Other versions
EP0302480A2 (en
Inventor
Theodore E. Davies
James E. Watson
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.)
North American Manufacturing Co
Original Assignee
North American Manufacturing Co
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 North American Manufacturing Co filed Critical North American Manufacturing Co
Publication of EP0302480A2 publication Critical patent/EP0302480A2/en
Publication of EP0302480A3 publication Critical patent/EP0302480A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
    • F27B17/0016—Chamber type furnaces
    • F27B17/0083—Chamber type furnaces with means for circulating the atmosphere
    • 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
    • F27D7/04—Circulating atmospheres by mechanical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

In a furnace (10) with a burner (12, 13) heating a furnace chamber (11) having an operational discharge and the operation of the furnace (10) occasionally including a secondary operation producing physical contaminants harmful to part of the operational discharge, an improvement comprising an auxiliary vent (14) and means to selectively operate said auxiliary vents (14) to allow the physical contaminants from the secondary operation to depart the furnace chamber (11) independently of the part of the operational discharge of the furnace that would be harmed by the physical contaminants.
EP88112655A 1987-08-04 1988-08-03 Auxiliary flue for furnaces Withdrawn EP0302480A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8135087A 1987-08-04 1987-08-04
US81350 1987-08-04

Publications (2)

Publication Number Publication Date
EP0302480A2 EP0302480A2 (en) 1989-02-08
EP0302480A3 true EP0302480A3 (en) 1989-03-15

Family

ID=22163594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112655A Withdrawn EP0302480A3 (en) 1987-08-04 1988-08-03 Auxiliary flue for furnaces

Country Status (3)

Country Link
EP (1) EP0302480A3 (en)
KR (1) KR890004147A (en)
CA (1) CA1310492C (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336649A1 (en) * 1975-12-22 1977-07-22 Alumax Inc MELTING OF ALUMINUM FRAGMENTS WITH HIGH THERMAL EFFICIENCY, WITH PREHEATING OF THE FRAGMENTS BY THE GAS EXHAUSTING THE MELTING ZONE
FR2378866A1 (en) * 1977-01-31 1978-08-25 Aluminum Co Of America PROCESS FOR LIMITING THE EMISSION OF POLLUTANTS DURING THE MELTING OF SOILED METAL WASTE
US4548651A (en) * 1983-04-27 1985-10-22 Aluminum Company Of America Method for reclaiming contaminated scrap metal
US4601750A (en) * 1985-06-28 1986-07-22 Aluminum Company Of America Scrap melting system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336649A1 (en) * 1975-12-22 1977-07-22 Alumax Inc MELTING OF ALUMINUM FRAGMENTS WITH HIGH THERMAL EFFICIENCY, WITH PREHEATING OF THE FRAGMENTS BY THE GAS EXHAUSTING THE MELTING ZONE
FR2378866A1 (en) * 1977-01-31 1978-08-25 Aluminum Co Of America PROCESS FOR LIMITING THE EMISSION OF POLLUTANTS DURING THE MELTING OF SOILED METAL WASTE
US4548651A (en) * 1983-04-27 1985-10-22 Aluminum Company Of America Method for reclaiming contaminated scrap metal
US4601750A (en) * 1985-06-28 1986-07-22 Aluminum Company Of America Scrap melting system

Also Published As

Publication number Publication date
EP0302480A2 (en) 1989-02-08
CA1310492C (en) 1992-11-24
KR890004147A (en) 1989-04-20

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Legal Events

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18D Application deemed to be withdrawn

Effective date: 19930706