GB717254A - Improvements in or relating to annealing furnaces or lehrs - Google Patents

Improvements in or relating to annealing furnaces or lehrs

Info

Publication number
GB717254A
GB717254A GB279252A GB279252A GB717254A GB 717254 A GB717254 A GB 717254A GB 279252 A GB279252 A GB 279252A GB 279252 A GB279252 A GB 279252A GB 717254 A GB717254 A GB 717254A
Authority
GB
United Kingdom
Prior art keywords
tunnel
tubes
radiant tubes
furnace
fired
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
GB279252A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB279252A priority Critical patent/GB717254A/en
Publication of GB717254A publication Critical patent/GB717254A/en
Expired 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/08—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated through chamber walls
    • F27B9/082—Muffle furnaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D9/00—Ovens specially adapted for firing enamels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Abstract

717,254. Tunnel furnaces. VICKERS, G. M. May 1, 1953 [Feb. 1, 1952; March 31, 1952], Nos. 2792/52 and 8136/52. Classes 51 (1) and 51 (2) A tunnel furnace for baking ceramics, vitreous enamelling or for glassware conveyed through by an endless belt 10, is heated by a series of radiant tubes 1 and 2, spaced from and following the contour of the walls and roof of the tunnel, and fired by gas or oil burners 5, alternate tubes being fired from opposite sides. Waste gas ducts 7 and 8 extend longitudinally below the tunnel floor to one or more stacks at or near the discharge end, and the tubes open into these ducts at the end opposite the burners. A third longitudinal duct 9 with a separate burner at one end provides additional bottom heat. The radiant tubes are made of silicon carbide aluminous fireclay or heatresisting metal, and may be rectangular, triangular or semi-circular in cross section. The furnace atmosphere is circulated upwardly at the tunnel centre and in streams diverging outwardly across the roof, down the sides, and along the bottom to the centre again, by fans 15 located above the radiant tubes, formation of the circulating paths being assisted by placing laminar members 16 formed with central openings over the gaps between the said radiant tubes. The furnace is built on vertical pillars 13 and rollers 14 to allow for longitudinal expansion.
GB279252A 1952-02-01 1952-02-01 Improvements in or relating to annealing furnaces or lehrs Expired GB717254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB279252A GB717254A (en) 1952-02-01 1952-02-01 Improvements in or relating to annealing furnaces or lehrs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB279252A GB717254A (en) 1952-02-01 1952-02-01 Improvements in or relating to annealing furnaces or lehrs

Publications (1)

Publication Number Publication Date
GB717254A true GB717254A (en) 1954-10-27

Family

ID=9745989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB279252A Expired GB717254A (en) 1952-02-01 1952-02-01 Improvements in or relating to annealing furnaces or lehrs

Country Status (1)

Country Link
GB (1) GB717254A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245693A (en) * 1990-06-27 1992-01-08 Riedhammer Gmbh Co Kg Roller kiln for ceramics
CN114322559A (en) * 2021-12-01 2022-04-12 江苏华航新材料科技集团有限公司 Environment-friendly pottery lacing film production line

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245693A (en) * 1990-06-27 1992-01-08 Riedhammer Gmbh Co Kg Roller kiln for ceramics
CN114322559A (en) * 2021-12-01 2022-04-12 江苏华航新材料科技集团有限公司 Environment-friendly pottery lacing film production line
CN114322559B (en) * 2021-12-01 2022-09-16 江苏华航新材料科技集团有限公司 Environment-friendly pottery lacing film production stove

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