EP0249411B1 - Öfen - Google Patents

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Publication number
EP0249411B1
EP0249411B1 EP87304990A EP87304990A EP0249411B1 EP 0249411 B1 EP0249411 B1 EP 0249411B1 EP 87304990 A EP87304990 A EP 87304990A EP 87304990 A EP87304990 A EP 87304990A EP 0249411 B1 EP0249411 B1 EP 0249411B1
Authority
EP
European Patent Office
Prior art keywords
kiln
cars
receiving
car
feeding means
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
EP87304990A
Other languages
English (en)
French (fr)
Other versions
EP0249411A1 (de
Inventor
Arthur John Rowley
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.)
British Ceramic Service Co Ltd
Original Assignee
British Ceramic Service Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26290897&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0249411(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB868614133A external-priority patent/GB8614133D0/en
Priority claimed from GB868614132A external-priority patent/GB8614132D0/en
Application filed by British Ceramic Service Co Ltd filed Critical British Ceramic Service Co Ltd
Priority to AT87304990T priority Critical patent/ATE60430T1/de
Publication of EP0249411A1 publication Critical patent/EP0249411A1/de
Application granted granted Critical
Publication of EP0249411B1 publication Critical patent/EP0249411B1/de
Expired legal-status Critical Current

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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
    • F27B9/14—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
    • 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 on or in trucks, sleds, or containers
    • F27B9/262—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 on or in trucks, sleds, or containers on or in trucks

Definitions

  • the present invention concerns improvements in or relating to kilns, especially but not exclusively kilns for firing ceramic ware.
  • GB2113939A Societa Impianti Ter- moelettrici Industrialli SpA SITI
  • This assembly comprises a closed circuit conveyor system with support plates arranged to supporttiles to be fired. Each plate is loaded upon the conveyor at an input and unloaded at an output. Throughput of tiles for firing is limited by the speed of the conveyor loading and the GB2113939A kiln assembly is quite unsuitable for large objects such as sanitary ware.
  • a kiln assembly including a plurality of wheeled cars adapted to carry ware to be fired along rails through the kiln, the cars being arranged such that their dimension transverse to the direction of movement through the kiln is greater than their dimension parallel to the kiln, receiving and feeding means for respectively receiving cars exiting from the kiln and cars to be fed to the kiln, the receiving and feeding means each having a device for lifting and lowering kiln wheeled cars from and to rails running through the kiln, and conveyor means for moving cars between the receiving and feeding means, said receiving means incorporating a car turning arrangement whereby after leaving the kiln and prior to re-introduction to the kiln each car is rotated through 90° such that as it travels from the receiving means to the feeding means its shortest dimension is transverse to the direction of travel through the kiln.
  • the feeding and receiving means are movable transversely to the direction of travel of cars through the kiln.
  • the conveyor means is arranged alongside the kiln to transport cars deposited thereon by the receiving means to the feeding means, the cars being unloaded and loaded with ware while on the conveyor means.
  • a method of continuously cycling kiln cars through a kiln assembly comprising running a wheeled car through a kiln on rails between receiving and feeding means, receiving the car at said receiving station on its discharge from the kiln, elevating it and rotating it through 90°, conveying it to the entrance to the kiln and prior to re-introducing it into the kiln rotating it through 90°, depositing it on a return conveyor arrangement, returning it to said feed means, elevating it and rotating it through 90° and redepositing it on the kiln rails at the entrance to the kiln.
  • loading and unloading operations are carried out as the car is transported from the receiving to the feeding means.
  • a kiln carfeed means 12 At the entrance 10 to the kiln there is provided a kiln carfeed means 12while at the exit 14from the kiln there is provided a kiln car receiving means 16.
  • the feed and delivery means are essentially of similar construction and the description of one of said means set out below should be regarded as being a description of the other means.
  • a plurality of wheeled kiln cars 18 are provided to carry ware through the kiln.
  • the kiln cars travel through the kiln on their wheels and are conveyed from the inlet 10 to the outlet 14 of the kiln by any suitable known means on rails 20 extending through the kiln.
  • the feed means 12 includes a structure 22 adapted to engage the underside of a kiln car 18 and elevate the car above, the level at which its wheels would engage the rails 20.
  • the structure 22 is mounted on a turntable 24 which, on operation, rotates the structure 22 with a kiln car thereon through 90°.
  • the feeding means 12 is itself mounted on rails whereby it may move from a position in which the centre of its turntable lies on the longitudinal centre axis of the kiln to a point laterally spaced from this axis where the structure 22 can engage a kiln car 18 brought loaded with ware to a pick-up station P by a conveyor 26 arranged alongside the kiln and running parallel to the rails 20 thereof.
  • a kiln car 18 brought by the conveyor 26 to the pick-up station P is lifted off the conveyor by the feed means 12 which is then traversed to the position shown in the drawing at which point the turntable assembly is operated to rotate the kiln car through 90° such that its shorter dimension lies along the line parallel to the rails 20.
  • the structure 22 on which the kiln car is supported is then lowered to engage the kiln car's wheels on the rails 20.
  • the car may then be progressed in any normal manner through the kiln so that the ware thereon is fired.
  • the receiving means 16 which, as set out above is similar in construction and operation to the feed means 12, receives on its structure 22 a "fired" kiln car, raises the kiln car 18 clear of the rails 20, rotates this kiln car through 90° by means of its turntable assembly 24, moves transversely of the rails 20 and deposits the kiln car at a loading station L on the chain conveyor 26.
  • the chain conveyor then moves the kiln car alongside the kiln from outlet to inlet and during this movement it can be readily unloaded and loaded manually by operatives or automatically by machinery, the loading and unloading operations being facilitated by the fact that the shortest dimension of the car, that is its fore-and-aft dimension as it passes through the kiln, is normal to the loading and unloading direction so that the ware when being loaded and unloaded has to be moved over a relatively short distance.
  • feed and receiving means may be employed provided that they receive a car in one orientation and rotate it through 90° before discharging it and the feed and receiving means may be arranged to serve more than one kiln whilst using one or more conveyors for the return transport system.
  • the means for transporting cars through the kiln may be amended, for example roller means may be employed.
  • two or more cars of the type described above can be arranged alongside each other and passed side- by-side through the kiln. In such a situation modified feeding and receiving means would be called for.
  • the kiln is a tunnel kiln where firing is continuous as the cars make from the entrance to the exit of the kiln.
  • the invention is equally applicable to a shuttle kiln where a batch of cars are fed to the kiln where they remain stationary while firing takes place.
  • a shuttle kiln assembly according to the invention, cars are fed through the kiln entrance as before while the exit is closed until sufficient cars are accumulated in the kiln. Firing then takes place and after firing the kiln exit is opened to allow cars to move to the receiving means 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Stoves And Ranges (AREA)
  • Glass Compositions (AREA)

Claims (5)

1. Ofenanordnung mit einer Vielzahl von mit Rädern versehenen Wagenanordnungen (18), die zum Transport von zu brennenden Waren entlang von durch den Ofen verlaufenden Schienen vorgesehen sind, wobei die Wagen (18) so angeordnet sind, daß ihre Ausdehnung quer zur Bewegungsrichtung durch den Ofen größer als ihre Ausdehnung parallel zum Ofen ist, mit Aufnahme- und Beschickungsmitteln (16, 12) jeweils zur Aufnahme von den Ofen verlassenden Wagen und zur Zuführung von Wagen zum Ofen, und mit Fördermitteln (26) zur Fortbewegung der Wagen zwischen den Aufnahme- und Beschickungsmitteln (16,12), die jeweils mit einer Vorrichtung zum Anheben und Absenken der Ofenwagen (18) von und auf die durch den Ofen verlaufenden Schienen versehen sind, wobei diese Aufnahme- und Beschickungsmittel (16, 12) eine Wagendrehvorrichtung (24) enthalten, durch die jeder Wagen nach dem Verlassen des Ofens und vor dem Wiedereinführen in den Ofen um 90° gedreht wird, so daß seine kürzeste Ausdehnung quer zur Fortbewegungsrichtung durch den Ofen angeordnet ist, wenn er sich von den Aufnahmemitteln (16) zu den Beschickungsmitteln (12) bewegt.
2. Ofenanordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Aufnahme- und Beschikkungsmittel (16, 12) quer zur Bewegungsrichtung der Wagen durch den Ofen bewegbar sind.
3. Ofenanordnung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Fördermittel (26) längsseits zum Ofen angeordnet sind, um von den Aufnahmemitteln (16) darauf aufgelegte Wagen (18) zu den Beschickungsmitteln (12) zu transportieren, wobei die Wagen während ihres Aufenthalts von Ware entladen oder mit Ware beladen werden.
4. Verfahren zur Erzeugung eines kontinuierlichen Kreislaufs von Ofenwagen durch eine Ofenanordnung, bei dem ein mit Rädern versehener Wagen (18) durch einen Ofen auf Schienen zwischen Aufnahme- und ßeschickungsmitteln gefahren, beim Verlassen des Ofenausgangs (14) an diesen Aufnahmemitteln aufgenommen, angehoben und um 90° gedreht, auf eine ihn zu diesen Beschickungsmitteln zurückbringende Rückförderanordnung abgesetzt, angehoben und um 90° gedreht und auf die Ofenschienen am Eingang des Ofens abgesetzt wird.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Belade- und Entladevorgänge ausgeführt werden, wenn der Wagen (18) von den Aufnahme- zu den Beschickungsmitteln transportiert wird.
EP87304990A 1986-06-10 1987-06-05 Öfen Expired EP0249411B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87304990T ATE60430T1 (de) 1986-06-10 1987-06-05 Oefen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8614133 1986-06-10
GB868614133A GB8614133D0 (en) 1986-06-10 1986-06-10 Ware supporting assembly
GB8614132 1986-06-10
GB868614132A GB8614132D0 (en) 1986-06-10 1986-06-10 Kilns

Publications (2)

Publication Number Publication Date
EP0249411A1 EP0249411A1 (de) 1987-12-16
EP0249411B1 true EP0249411B1 (de) 1991-01-23

Family

ID=26290897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87304990A Expired EP0249411B1 (de) 1986-06-10 1987-06-05 Öfen

Country Status (4)

Country Link
EP (1) EP0249411B1 (de)
AT (1) ATE60430T1 (de)
DE (1) DE3767574D1 (de)
ES (1) ES2021361B3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119394015B (zh) * 2024-12-30 2025-03-11 鸿生再生资源(福州)有限公司 一种均匀受热的焙烧装置及环保砖制备用焙烧方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1490396A (en) * 1920-03-26 1924-04-15 American Dressler Tunnel Kilns Tunnel kiln
GB1368073A (en) * 1971-01-28 1974-09-25 Gibbons Brothers Ltd Kiln cars
DE2939437A1 (de) * 1979-09-28 1981-04-16 Annawerk Keramische Betriebe GmbH, 8633 Rödental Brennwagenaufbau
US4505630A (en) * 1979-12-17 1985-03-19 Besser Company Article transfer apparatus
IT1140307B (it) * 1981-11-27 1986-09-24 Siti Procedimento e impianto per il trattamento a cottura di manufatti ceramici
DE3519612A1 (de) * 1985-05-31 1986-12-04 Hutschenreuther Ag, 8672 Selb Einrichtung zum brennen von keramischen formteilen, insbesondere porzellangeschirrteilen

Also Published As

Publication number Publication date
ES2021361B3 (es) 1991-11-01
ATE60430T1 (de) 1991-02-15
EP0249411A1 (de) 1987-12-16
DE3767574D1 (de) 1991-02-28

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