EP1380803A1 - Fixation device for refractory supporting blocks for tunnel kiln cars - Google Patents

Fixation device for refractory supporting blocks for tunnel kiln cars Download PDF

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Publication number
EP1380803A1
EP1380803A1 EP03380164A EP03380164A EP1380803A1 EP 1380803 A1 EP1380803 A1 EP 1380803A1 EP 03380164 A EP03380164 A EP 03380164A EP 03380164 A EP03380164 A EP 03380164A EP 1380803 A1 EP1380803 A1 EP 1380803A1
Authority
EP
European Patent Office
Prior art keywords
supporting blocks
blocks
fixation device
fixation
refractory supporting
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
EP03380164A
Other languages
German (de)
French (fr)
Other versions
EP1380803B1 (en
Inventor
Bernat Planas Vives
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.)
Forgestal SL
Original Assignee
Forgestal SL
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 Forgestal SL filed Critical Forgestal SL
Publication of EP1380803A1 publication Critical patent/EP1380803A1/en
Application granted granted Critical
Publication of EP1380803B1 publication Critical patent/EP1380803B1/en
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
    • 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
    • F27D1/14—Supports for linings
    • F27D1/145—Assembling elements
    • 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
    • F27D3/123—Furnace cars
    • 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
    • F27D5/0006—Composite supporting structures

Definitions

  • the present invention refers to a fixation device for refractory supporting blocks for tunnel kiln cars, of the type which are assembled together forming the upper part of the kiln cars.
  • the device of the invention is used with advantage to fix together the supporting blocks with a "bridge” or " PI letter" shape.
  • the parts being produced are supported and transported on kiln cars that move along the production plant, and on those cars they accede and are submitted to the several process operations.
  • an assembly of supporting blocks, made of refractory blocks, is placed in the upper part of the kiln car, this assembly of supporting blocks supporting the pieces to be produced, set in one or more layers.
  • Supporting blocks in a prismatic shape, with a "PI letter" shaped section shape formed by 2 side piers and a bridge part joining them, are well known. Those blocks are usually solid or containing holes for an easier air circulation and, therefore, producing a better heat transmission from the ceramic pieces in contact with the refractory supporting blocks assembly.
  • Fixation devices based on adhesives is not a good solution for refractory blocks, because such adhesives do not allow for the differential expansion of the two materials to be fixed.
  • the refractory supporting blocks fixation device of the present invention is essentially characterized by the fact of being composed of several fixation parts, adapted to fit into corresponding complementary holes or notches made in corresponding contiguous blocks, in such a way that the assembled contiguous blocks are prevented from doing movement and/or turn relatively big yet allowing the differential thermal expansions of the assembled material.
  • the above mentioned fixation parts are made of hollow tubes, or of bars or pegs, preferably with a cross section similar to the section of the holes or notches made in the fixed refractory blocks, so that the fixation parts, when introduced in the holes or notches, fit with a small gap in between.
  • the fixation device for contiguous refractory supporting blocks 2, 2' consists of several fixation parts 3, adapted to fit into corresponding holes or notches 4.
  • the fixation parts 3 are cylindrical tubular and they fit into circumferential holes 4, but they could also fit into hollow cylindrical holes.
  • the fixation parts 3 could also be bars or pegs, in this case necessarily fitting into corresponding hollow cylindrical holes.
  • the refractory supporting blocks 2, 2' are of the kind of blocks made of a prismatic shaped refractory piece, with a "PI letter” like section shape formed by 2 side piers 6 and a bridge part 7 joining them, with several holes 5 parallel to its generating direction.
  • the fixation part 3 fits into the holes 4 made in the piers 6 of the refractory supporting blocks 2, 2'.

Abstract

Fixation device (1) for ceramic refractory supporting blocks (2), for tunnel kiln cars, characterized by comprising several fixation parts (3) adapted to fit into complementary holes or notches (4), made in corresponding contiguous blocks. The assembled contiguous blocks are prevented from doing movement and/or turn relatively big allowing the differential thermal expansions of the assembled material.

Description

    Technical sector of the invention.-
  • The present invention refers to a fixation device for refractory supporting blocks for tunnel kiln cars, of the type which are assembled together forming the upper part of the kiln cars. Specifically, the device of the invention is used with advantage to fix together the supporting blocks with a "bridge" or " PI letter" shape.
    • Background of the invention.-
  • Usually, in the ceramic industry, the parts being produced are supported and transported on kiln cars that move along the production plant, and on those cars they accede and are submitted to the several process operations. Usually, an assembly of supporting blocks, made of refractory blocks, is placed in the upper part of the kiln car, this assembly of supporting blocks supporting the pieces to be produced, set in one or more layers.
  • Supporting blocks in a prismatic shape, with a "PI letter" shaped section shape formed by 2 side piers and a bridge part joining them, are well known. Those blocks are usually solid or containing holes for an easier air circulation and, therefore, producing a better heat transmission from the ceramic pieces in contact with the refractory supporting blocks assembly.
  • It is also well known the use of flat smooth refractory slabs, supported by piers. This kind of assembly is not very stable, because the component parts are only supported on each other, but never fixed together so that they could work as a complete block. As a consequence, it is quite usual that this kind of structure gets disassembled, at least partially, as a consequence of the loading and unloading of the ceramic pieces, or of the thermal expansion and shrinkage of the refractory supporting blocks.
  • Fixation devices based on adhesives is not a good solution for refractory blocks, because such adhesives do not allow for the differential expansion of the two materials to be fixed.
  • This problem is solved by the object of the present invention.
    • Explanation of the invention.-
  • The refractory supporting blocks fixation device of the present invention is essentially characterized by the fact of being composed of several fixation parts, adapted to fit into corresponding complementary holes or notches made in corresponding contiguous blocks, in such a way that the assembled contiguous blocks are prevented from doing movement and/or turn relatively big yet allowing the differential thermal expansions of the assembled material.
  • According to another characteristic of the invention, the above mentioned fixation parts are made of hollow tubes, or of bars or pegs, preferably with a cross section similar to the section of the holes or notches made in the fixed refractory blocks, so that the fixation parts, when introduced in the holes or notches, fit with a small gap in between.
    • Brief description of the drawings.-
  • The attached drawings illustrate, for a better understanding and as an example, a non-restrictive particular example of one of the possible execution shapes of the fixation device of the present invention:
  • Fig. 1 is an isometric view of a refractory supporting block, where a hole has been made.
  • Fig. 2 shows an example of a fixation part, in a big scale isometric view.
  • Fig. 3 shows an isometric view of a refractory supporting block, where a hole has been made in one of its faces, containing a fixing part, partially introduced in the hole.
  • Fig 4 shows an isometric view of two refractory supporting blocks, with more than one hole made per block, in order to make them able to receive more than one fixation parts per pair of blocks; and
  • Fig. 5 is an isometric view of an assembly of two refractory supporting blocks, fixed together according to the object of the present invention, showing the blocks superimposed on their piers, on which one or more holes have been made, and being fixed together by at least one fixing part.
    • Detailed description of the drawings.-
  • In these drawings, it is possible to see that, according to the object of the present invention, the fixation device for contiguous refractory supporting blocks 2, 2' consists of several fixation parts 3, adapted to fit into corresponding holes or notches 4. In the execution shape represented in the drawings, the fixation parts 3 are cylindrical tubular and they fit into circumferential holes 4, but they could also fit into hollow cylindrical holes. The fixation parts 3 could also be bars or pegs, in this case necessarily fitting into corresponding hollow cylindrical holes. The refractory supporting blocks 2, 2', in the represented case, are of the kind of blocks made of a prismatic shaped refractory piece, with a "PI letter" like section shape formed by 2 side piers 6 and a bridge part 7 joining them, with several holes 5 parallel to its generating direction. The fixation part 3 fits into the holes 4 made in the piers 6 of the refractory supporting blocks 2, 2'.
  • This technical solution for the fixation of refractory supporting blocks 2, 2' can, of course, be used for the fixation of blocks and pieces of different sizes and shapes, as blocks and fixation parts of quadrangular or polygonal transverse section shape, and still being included within object of the present invention.

Claims (3)

  1. Fixation device (1) for ceramic refractory supporting blocks (2), for tunnel kiln cars, of the type of the ones that are assembled together forming the upper part of the kiln car, characterized by comprising several fixation parts (3) adapted to fit into complementary holes or notches (4), made in corresponding contiguous blocks, in such a way that the assembled contiguous blocks are prevented from doing movement and/or turn relatively big yet allowing the differential thermal expansions of the assembled material.
  2. Fixation device (1) for ceramic refractory supporting blocks (2), according to claim 1, characterized by the fact that said fixation parts (3) are made of hollow tubes, with such a cross section that they can be introduced in the corresponding holes or notches (4) without any gap or with a small gap.
  3. Fixation device (1) for ceramic refractory supporting blocks (2), according to claim 1, characterized by the fact that said fixation parts (3) are made of bars or of pegs, with such a cross section that they can be introduced in the corresponding holes or notches (4) without any gap or with a small gap.
EP03380164A 2002-07-11 2003-07-08 Fixation device for refractory supporting blocks for tunnel kiln cars Expired - Lifetime EP1380803B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200201788U 2002-07-11
ES200201788U ES1052336Y (en) 2002-07-11 2002-07-11 DEVICE FOR THE SETTING OF ENVELOPE BLOCKS FOR TUNNEL OVEN WAGONS.

Publications (2)

Publication Number Publication Date
EP1380803A1 true EP1380803A1 (en) 2004-01-14
EP1380803B1 EP1380803B1 (en) 2006-08-16

Family

ID=8501710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03380164A Expired - Lifetime EP1380803B1 (en) 2002-07-11 2003-07-08 Fixation device for refractory supporting blocks for tunnel kiln cars

Country Status (5)

Country Link
EP (1) EP1380803B1 (en)
AT (1) ATE336703T1 (en)
DE (1) DE60307558T2 (en)
ES (2) ES1052336Y (en)
PT (1) PT1380803E (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR952662A (en) * 1947-09-03 1949-11-22 Etablissements Rene Amand & Ci Assembly process for slabs and supports used in kilns for firing or enamelling ceramic products
EP0608701A1 (en) * 1993-01-27 1994-08-03 HEIMSOTH VERWALTUNGEN GmbH & CO. KG Beteiligungsgesellschaft Intermediate wagon structure for tunnel ovens for burning coarse ceramic articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR952662A (en) * 1947-09-03 1949-11-22 Etablissements Rene Amand & Ci Assembly process for slabs and supports used in kilns for firing or enamelling ceramic products
EP0608701A1 (en) * 1993-01-27 1994-08-03 HEIMSOTH VERWALTUNGEN GmbH & CO. KG Beteiligungsgesellschaft Intermediate wagon structure for tunnel ovens for burning coarse ceramic articles

Also Published As

Publication number Publication date
ES1052336U (en) 2002-12-01
ES2269954T3 (en) 2007-04-01
ES1052336Y (en) 2003-04-01
DE60307558D1 (en) 2006-09-28
ATE336703T1 (en) 2006-09-15
EP1380803B1 (en) 2006-08-16
PT1380803E (en) 2006-12-29
DE60307558T2 (en) 2006-12-07

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