EP1061317A1 - Brennunterlage - Google Patents

Brennunterlage Download PDF

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Publication number
EP1061317A1
EP1061317A1 EP00401664A EP00401664A EP1061317A1 EP 1061317 A1 EP1061317 A1 EP 1061317A1 EP 00401664 A EP00401664 A EP 00401664A EP 00401664 A EP00401664 A EP 00401664A EP 1061317 A1 EP1061317 A1 EP 1061317A1
Authority
EP
European Patent Office
Prior art keywords
plate
bars
oven
elements
come
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.)
Granted
Application number
EP00401664A
Other languages
English (en)
French (fr)
Other versions
EP1061317B1 (de
Inventor
Gérard Coudamy
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.)
Ceric
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
Publication of EP1061317A1 publication Critical patent/EP1061317A1/de
Application granted granted Critical
Publication of EP1061317B1 publication Critical patent/EP1061317B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F27B9/06—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
    • F27B9/10—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 by hot air or gas
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like

Definitions

  • the subject of the present invention is a support intended to receive products to be baked in an oven or dried in a dryer.
  • This support is more particularly intended for the firing of ceramic products of "honeycomb" type like the catalyst supports.
  • honeycomb elements generally consist of blocks parallelepipedic or cylindrical which are traversed right through by a multiplicity of square or triangular section channels which may be less than 1 millimeter with partitions from 1 mm to 3/100 of a millimeter thick.
  • perforated plates does not allow circulation homogeneous in all the channels from where the problems related to the differences of flow between open or closed channels.
  • the present invention relates to a method providing a solution to this problem.
  • the method according to the invention consists in placing the catalyst elements to be cooked or dry, their channels being vertical, on a parallelepipedic support constituted by a ceramic foam so that the catalyst element channels are in position vertical to the support which causes the hot gases to pass through the support from side to side and penetrate into said channels.
  • Ceramic foam is a known product which is mainly used as filter in foundry molds: poured molten metal on these foam filters of ceramic, the molten metal passes through this filter and fills the mold.
  • the ceramic support must not be too thick, because the pressure drop which the flow of hot gases undergoes when passing through it would be such that this gas flow would not circulate, or at least would circulate poorly inside channels passing through the catalyst support block.
  • the support must therefore be a thin plate, that is to say of a thickness between 1 and 5 centimeters.
  • these means consist of bars carrying the plate in ceramic foam, these bars resting on the load-bearing elements of the oven.
  • the device according to the invention is consisting of a plate 1, of small thickness, that is to say between 1.5 and 2.5 centimeters, which is ceramic foam.
  • This plate 1 is intended to serve as a support for one or more elements in catalytic ceramics that will be deposited on it so that the multiple channels that cross them right through are vertical or perpendicular to the surface upper 2 of plate 1.
  • the catalyst support elements which are not part of the invention, are not shown.
  • the plate 1 must be carried by the carrying elements 4 of the oven (also not represented).
  • the plate 1 having only a very low resistance to punching, cannot not be deposited directly on the load-bearing elements 4. In addition, having only one very low mechanical resistance, it risks breaking between the load-bearing elements such as elements 4.
  • grooves are formed in the lower face 3 6 in which the bars 5 will come to be embedded.
  • the bars 5 are cylindrical and the grooves 6 are semi-cylindrical.
  • the bars 5 are placed on the load-bearing elements 4.
  • the carrier elements 4 include notches 7 corresponding to the grooves 6.
  • the complementary bars 15 are arranged inside the mass of the plate 1 in bores made for this purpose.
  • the plate 1 can be made up of two parts 1a and 1b placed side by side on the bars 5.
  • bars 5 can, like additional bars 15, be arranged in the mass of the plate 1. But as it is necessary that the foam ceramic is not in contact with the supports 4, cleaning on the underside 3 of the plate 1 of the grooves 7 which make the bars 5 appear so that they come in contact with load-bearing elements 4.
  • the present invention has been described in its application to cooking elements catalytic but it is not limited to this particular application; she may be advantageously used for any product to be crossed vertically by a hot gas flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
EP00401664A 1999-06-14 2000-06-13 Brennverfahren und Brennunterlage Expired - Lifetime EP1061317B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9907476 1999-06-14
FR9907476A FR2794632B1 (fr) 1999-06-14 1999-06-14 Support de cuisson

Publications (2)

Publication Number Publication Date
EP1061317A1 true EP1061317A1 (de) 2000-12-20
EP1061317B1 EP1061317B1 (de) 2004-04-21

Family

ID=9546730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401664A Expired - Lifetime EP1061317B1 (de) 1999-06-14 2000-06-13 Brennverfahren und Brennunterlage

Country Status (4)

Country Link
US (1) US6503080B1 (de)
EP (1) EP1061317B1 (de)
DE (1) DE60009984T2 (de)
FR (1) FR2794632B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2840191B1 (fr) 2002-05-30 2005-02-18 Guilloux Pierre Le Fixateur externe dynamique pour articulation
FR2885207B1 (fr) * 2005-04-29 2007-08-17 Ceric Wistra Sa Procede de reglage du flux de fluide de sechage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014968A (en) * 1974-07-19 1977-03-29 Corning Glass Works Shrinkage control of cellular ceramic bodies having axial cavities
DE2656989A1 (de) * 1976-12-16 1978-06-22 Riedhammer Ludwig Fa Tunnelofen zum sintern von ferriten in schutzgasatmosphaere mit vorwaermzone, hochtemperaturzone und abkuehlzone und mit gleitend durch den tunnelofen bewegten foerderelementen
US4416618A (en) * 1976-04-07 1983-11-22 Smith Thomas M Gas-fired infra-red generators and use thereof
US4568595A (en) * 1984-04-26 1986-02-04 Morris Jeffrey R Coated ceramic structure and method of making same
US4693918A (en) * 1985-08-09 1987-09-15 Toshiba Ceramics, Ltd. Tool for firing ceramics
EP0307319A2 (de) * 1987-09-11 1989-03-15 Senju Metal Industry Co., Ltd. Aufschmelzofen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589694A (en) * 1969-08-19 1971-06-29 Philips Corp Supporting plate for objects to be subjected to a thermal treatment
US4174950A (en) * 1977-12-19 1979-11-20 United Technologies Corporation Ceramic base and cap useful in firing ceramic shell molds
US4808558A (en) * 1987-08-26 1989-02-28 Lanxide Technology Company, Lp Ceramic foams
US5406058A (en) * 1993-11-30 1995-04-11 Corning Incorporated Apparatus for drying ceramic structures using dielectric energy
US5582784A (en) * 1995-08-16 1996-12-10 Northrop Grumman Corporation Method of making ceramic matrix composite/ceramic foam panels
DE19810411A1 (de) * 1998-03-11 1999-09-16 Schunk Ingenieurkeramik Gmbh Halterung für einen keramischen Wagenaufbau zum Halten von zu brennenden Rohlingen aus keramischem Material
US6330904B2 (en) * 1999-02-17 2001-12-18 Micro Electronics Group Inc. Microwave-based process for dental casting
US6254998B1 (en) * 2000-02-02 2001-07-03 Materials And Electrochemical Research (Mer) Corporation Cellular structures and processes for making such structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014968A (en) * 1974-07-19 1977-03-29 Corning Glass Works Shrinkage control of cellular ceramic bodies having axial cavities
US4416618A (en) * 1976-04-07 1983-11-22 Smith Thomas M Gas-fired infra-red generators and use thereof
DE2656989A1 (de) * 1976-12-16 1978-06-22 Riedhammer Ludwig Fa Tunnelofen zum sintern von ferriten in schutzgasatmosphaere mit vorwaermzone, hochtemperaturzone und abkuehlzone und mit gleitend durch den tunnelofen bewegten foerderelementen
US4568595A (en) * 1984-04-26 1986-02-04 Morris Jeffrey R Coated ceramic structure and method of making same
US4693918A (en) * 1985-08-09 1987-09-15 Toshiba Ceramics, Ltd. Tool for firing ceramics
EP0307319A2 (de) * 1987-09-11 1989-03-15 Senju Metal Industry Co., Ltd. Aufschmelzofen

Also Published As

Publication number Publication date
DE60009984T2 (de) 2005-05-04
FR2794632B1 (fr) 2001-09-07
DE60009984D1 (de) 2004-05-27
FR2794632A1 (fr) 2000-12-15
EP1061317B1 (de) 2004-04-21
US6503080B1 (en) 2003-01-07

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