EP0110752A1 - Perfectionnements aux fours de cuisson - Google Patents

Perfectionnements aux fours de cuisson Download PDF

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Publication number
EP0110752A1
EP0110752A1 EP83402130A EP83402130A EP0110752A1 EP 0110752 A1 EP0110752 A1 EP 0110752A1 EP 83402130 A EP83402130 A EP 83402130A EP 83402130 A EP83402130 A EP 83402130A EP 0110752 A1 EP0110752 A1 EP 0110752A1
Authority
EP
European Patent Office
Prior art keywords
notches
bricks
oven according
oven
upper wall
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Withdrawn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
EP83402130A
Other languages
German (de)
English (en)
French (fr)
Inventor
Michel Hartmann
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.)
D'etudes Et De Constructions Electriques Et Mecaniques Secem Ste
Original Assignee
D'etudes Et De Constructions Electriques Et Mecaniques Secem Ste
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 D'etudes Et De Constructions Electriques Et Mecaniques Secem Ste filed Critical D'etudes Et De Constructions Electriques Et Mecaniques Secem Ste
Publication of EP0110752A1 publication Critical patent/EP0110752A1/fr
Withdrawn legal-status Critical Current

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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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/02—Crowns; Roofs
    • F27D1/025—Roofs supported around their periphery, e.g. arched roofs

Definitions

  • this wall is produced in the form of a curved vault of refractory bricks.
  • this method of construction generates significant lateral thrusts which must be taken up in the side walls or in a rigid envelope, and it leads to a loss of internal volume, the volume of the hanger being hardly usable and causing an uneven distribution of heat. and a stagnation of hot gases.
  • this wall in the form of a suspended ceiling, the bricks being preassembled in pairs on hooks or legs which are suspended from a rigid structure provided above the ceiling at the time of final assembly. .
  • This arrangement has the same disadvantages as the previous one and is, moreover, of a complicated and expensive assembly.
  • the present invention relates to an embodiment of the ceilings of a baking oven making it possible to avoid these drawbacks.
  • such a ceiling or upper wall of an oven is produced in a flat vault by positioning refractory bricks side by side and application of an elastic lateral compression thrust by means of springs, or the equivalent, based on on a rigid external structure which takes up the lateral forces, narrow, longitudinal notches, that is to say perpendicular to the direction of the lateral thrust, being provided from place to place at least on one of the lower and upper faces of the ceiling thus produced, the depth of these notches decreasing from the central zone of the ceiling towards the lateral parts as regards the notches located under the ceiling. (lower surface), while the depth of said notches varies inversely for this which concerns those located above the ceiling (upper surface).
  • the bricks 4 constituting the vault have narrow longitudinal notches (of the order of 10 mm thick), the depth of which goes, for the lower surface, decreasing from the axial notch 5 to the lateral notches 7a, 7b, and for the upper surface increasing from the axis (zero depth) to the lateral notches 9a, 9b; the intermediate notches 6a, 6b, for the lower surface 8a, 8b for the upper surface, will be in number depending on the width of the oven so that the distance between two notches remains between approximately 20 cm and 50 cm, preferably of about 25 to 30 cm.
  • the bricks of the lateral zones 1a, 1b of the vault which is located above the piers 2 and 3 are of a lower height than that of the central part of the vault (preferably about 2 / 3 of the height of the bricks of this central part) and the pushers 10 exert their thrust in the middle part of the height of these lateral zones.
  • the depth of the notches 5 to 9 is at most equal to about a third of the height of the bricks 4 of the arch 1. More precisely, the intrados and extrados notches face each other and the total height of the notches d 'lower surface and upper surface facing, is around a third of the brick height.
  • the pushers "10" are mounted on a rigid structure 12 surrounding the side walls of the oven.
  • This structure may be formed by a frame of profiles, but preferably it is constituted by an outer casing 12 made of corrugated sheet having sufficient inertia for ensuring the stability of the oven, the resistance to the dead weight of the walls and to the loads as well as the reaction to the forces of the springs 10.
  • This casing 12 surrounds at least the sides 2, 3 and the roof 1 of the oven; and preferably also the hearth 13. These different parts can be welded together to provide a complete seal.
  • an insulating layer 14 produced in any suitable manner.
  • a preferred embodiment of the spring plungers 10 is illustrated in Figures 4 and 5. It comprises a sleeve or sleeve 14 bolted at 20, 21 on a support 15 integral with the structure 12; in the sleeve 14 slides the pusher 10 which is pushed back by the spring 16 abutted at 23 on the sleeve 14 by means of the key 17 and of the washer 18. The key 17 slides in a slot 22 of the sleeve 14, light the length of which limits the travel of the pusher 10. The pusher 10 acts on the bricks 4 via the distribution bar 19.
  • the springs 16 can be placed outside the insulation surrounding the walls 1, 2, 3, 13 and even of the outer envelope 12 which puts them at the sheltered from the effects of temperature.
  • the thrust is obtained by a spring formed from a stack of Belleville washers, but a spiral spring or a jack could be used in an equivalent manner.
  • the initial setting of the arch preload is obtained by adjusting the bolts 20 and 21 which determines the initial tightening of the springs 16 and the travel of the pushers 10.
  • Figures 1 and 3 show a section of oven. the complete oven is produced by juxtaposition of such sections up to the desired oven length.
  • the bricks making up the oven may all be of equal quality.
  • notches 5, 9 both on the lower surface and on the upper surface and facing each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Electric Stoves And Ranges (AREA)
EP83402130A 1982-11-19 1983-11-02 Perfectionnements aux fours de cuisson Withdrawn EP0110752A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8219402A FR2536519A1 (fr) 1982-11-19 1982-11-19 Perfectionnements aux fours de cuisson
FR8219402 1982-11-19

Publications (1)

Publication Number Publication Date
EP0110752A1 true EP0110752A1 (fr) 1984-06-13

Family

ID=9279331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83402130A Withdrawn EP0110752A1 (fr) 1982-11-19 1983-11-02 Perfectionnements aux fours de cuisson

Country Status (5)

Country Link
US (1) US4512738A (enExample)
EP (1) EP0110752A1 (enExample)
ES (1) ES285899Y (enExample)
FR (1) FR2536519A1 (enExample)
PT (1) PT77612B (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339705A3 (en) * 1988-04-29 1990-03-21 Ttc Termo Tecnic Ceram Spa Flat separation floor between two superposed chambers in kilns, in particular roller-hearth kilns for ceramic tiles
CN103499213A (zh) * 2013-08-19 2014-01-08 黄五三 一种移动式平顶的轮窑

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290189A (en) * 1993-08-26 1994-03-01 Gas Research Institute High temperature industrial heat treat furnace
US5695329A (en) * 1996-09-24 1997-12-09 Orcutt; Jeffrey W. Rotary kiln construction with improved insulation means
CN117902909B (zh) * 2024-03-19 2024-06-11 阳城县圣利安建材有限公司 一种焦宝石砖及制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1231236A (fr) * 1959-04-10 1960-09-27 Perfectionnements aux couvercles ou éléments de fermeture des fours
DE1558568A1 (de) * 1967-07-25 1970-04-09 Inst Za Bakar Mauerwerk fuer metallurgische OEfen
GB2092285A (en) * 1981-01-09 1982-08-11 Isomax Ing Handel Refractory Fibre Lining for Elevated Temperatures

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE473933C (de) * 1929-03-23 Freienwalder Schamottefabrik H Haengedecke fuer Industrieoefen und -feuerungen
FR466811A (fr) * 1912-12-09 1914-05-25 Harry Mackenzie Ridge Perfectionnements dans les voutes pour fourneaux, fours et autres
US1266745A (en) * 1917-11-28 1918-05-21 Otto Wundrack Non-collapsible flat arch for furnaces.
DE3030714C2 (de) * 1980-08-14 1985-10-24 Keller Ofenbau GmbH, 4530 Ibbenbüren Vorgefertigtes Mauerelement für den Brennraum eines Tunnelofens zum Brennen keramischer Formlinge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1231236A (fr) * 1959-04-10 1960-09-27 Perfectionnements aux couvercles ou éléments de fermeture des fours
DE1558568A1 (de) * 1967-07-25 1970-04-09 Inst Za Bakar Mauerwerk fuer metallurgische OEfen
GB2092285A (en) * 1981-01-09 1982-08-11 Isomax Ing Handel Refractory Fibre Lining for Elevated Temperatures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339705A3 (en) * 1988-04-29 1990-03-21 Ttc Termo Tecnic Ceram Spa Flat separation floor between two superposed chambers in kilns, in particular roller-hearth kilns for ceramic tiles
CN103499213A (zh) * 2013-08-19 2014-01-08 黄五三 一种移动式平顶的轮窑

Also Published As

Publication number Publication date
ES285899U (es) 1986-03-01
ES285899Y (es) 1986-10-16
PT77612A (fr) 1983-12-01
FR2536519A1 (fr) 1984-05-25
US4512738A (en) 1985-04-23
PT77612B (fr) 1986-03-12
FR2536519B1 (enExample) 1985-03-22

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840719

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19860512

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HARTMANN, MICHEL