GB1471787A - Tunnel kiln - Google Patents

Tunnel kiln

Info

Publication number
GB1471787A
GB1471787A GB1896374A GB1896374A GB1471787A GB 1471787 A GB1471787 A GB 1471787A GB 1896374 A GB1896374 A GB 1896374A GB 1896374 A GB1896374 A GB 1896374A GB 1471787 A GB1471787 A GB 1471787A
Authority
GB
United Kingdom
Prior art keywords
kiln
wheels
carriers
discs
distance
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
GB1896374A
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.)
Ceraver SA
Original Assignee
Ceraver SA
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 Ceraver SA filed Critical Ceraver SA
Publication of GB1471787A publication Critical patent/GB1471787A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • 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
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F27B9/2415—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace) the charge rotating about an axis transversal to the axis of advancement of the charge
    • 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
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Tunnel Furnaces (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

1471787 Carriers for heat treating articles CERAVER 30 April 1974 [8 May 1973] 18963/74 Heading F4B In a tunnel kiln for the heat treatment of cylindrical objects, such as ceramic tubes, which move through the kiln in work carriers, the objects rotate within the carriers as the latter are rolled through the kiln along a fixed surface, and distance pieces separating successive carriers. As shown in Figs. 1 and 3 each work carrier is formed by an array of support tubes 5, each containing an object 6 to be heat treated and retained therein by stoppers 7, the array being mounted in apertured discs having flanges 1, the discs being keyed to an axle 2 having a wheel 3 at each end. The kiln, Figs. 4 and 6, comprises a gas-tight body 8, an inlet chamber 9, and an outler chamber 10, the chambers having loading and unloading means for the body 8 which includes a hearth 22 and tracks 23. At the ends of the kiln the work carrier is rolled along the hearth 22 and at the middle portion (that is the kiln zone at the highest temperature) the wheels 3 roll along the tracks 23. The distance piece between adjacent work carriers is in the form of a roller 15 with an axle idling mounting guide trunnions 16. Alternatively, the distance piece may be in the form of two discs of a diameter to contact adjacent wheels 3, the discs being arranged on an axle idly mounting guide wheels, Figs. 7 and 8 (not shown). In another form, Figs. 9 and 10 (not shown), the distance piece may comprise lateral flanges, each carrying an odd number of wheels bridging the distance between adjacent wheels 3. In further alternative forms, the distance piece may comprise vertically spaced rollers carried by links, Figs. 11 and 12 (not shown), or triangularly disposed rollers or wheels, Fig. 13 (not shown). In Figs. 14 and 15 (not shown) the array of support tubes constituting the work carrier is replaced by a plurality of individual support tubes, each receiving an object to be fixed, the tubes being arranged within the kiln in two layers which are progressed by lines of distance pieces travelling along grooves in the kiln hearth. In further embodiments, Figs. 16 to 18 (not shown), the distance pieces are formed by recessed members placed on the support tubes.
GB1896374A 1973-05-08 1974-04-30 Tunnel kiln Expired GB1471787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7316587A FR2229313A5 (en) 1973-05-08 1973-05-08

Publications (1)

Publication Number Publication Date
GB1471787A true GB1471787A (en) 1977-04-27

Family

ID=9118980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1896374A Expired GB1471787A (en) 1973-05-08 1974-04-30 Tunnel kiln

Country Status (5)

Country Link
US (1) US3887327A (en)
JP (1) JPS5053406A (en)
DE (1) DE2419552A1 (en)
FR (1) FR2229313A5 (en)
GB (1) GB1471787A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750983B1 (en) * 1997-01-27 1998-08-28 Ceramiques Tech Soc D PROCESS FOR SINTERING CERAMIC TUBES
FR2758815B1 (en) * 1997-12-15 1999-05-28 Ceramiques Tech Soc D PROCESS FOR SINTERING CERAMIC TUBES
US6310324B1 (en) * 2000-09-18 2001-10-30 Wartrom Machine Systems Incorporated Tube heating apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2372913A (en) * 1945-04-03 Internal and external milling
US1551827A (en) * 1921-12-14 1925-09-01 Us Cast Iron Pipe And Foundry Pipe-annealing furnace
US2795411A (en) * 1953-03-27 1957-06-11 Int Harvester Co Portable gas heat treating machine
US2707629A (en) * 1954-03-25 1955-05-03 Frank J Kennedy Method and apparatus for heating metal parts

Also Published As

Publication number Publication date
DE2419552A1 (en) 1974-11-28
FR2229313A5 (en) 1974-12-06
US3887327A (en) 1975-06-03
JPS5053406A (en) 1975-05-12

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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