FR2634545A2 - Device for protecting the opening of a rotary oven - Google Patents

Device for protecting the opening of a rotary oven Download PDF

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Publication number
FR2634545A2
FR2634545A2 FR8809865A FR8809865A FR2634545A2 FR 2634545 A2 FR2634545 A2 FR 2634545A2 FR 8809865 A FR8809865 A FR 8809865A FR 8809865 A FR8809865 A FR 8809865A FR 2634545 A2 FR2634545 A2 FR 2634545A2
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FR
France
Prior art keywords
oven
block
parts
spout
place
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
FR8809865A
Other languages
French (fr)
Other versions
FR2634545B2 (en
Inventor
Alain Lefebvre
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock 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
Priority claimed from FR8710116A external-priority patent/FR2618215B1/en
Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to FR8809865A priority Critical patent/FR2634545B2/en
Publication of FR2634545A2 publication Critical patent/FR2634545A2/en
Application granted granted Critical
Publication of FR2634545B2 publication Critical patent/FR2634545B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/224—Discharge ends
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/14—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in revolving cylindrical furnaces

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

The invention relates to a device for protecting the opening of a rotary oven according to the main patent. In order to allow easy and fast replacement of the protective lining of the parts constituting the device and to increase their service life, the lining is formed from pre-cast blocks 28 whose shape is adapted to that of the cavity of the parts and these blocks are held in place by detachable fixing elements 26, 27 fixed to the external part 22 of the parts 14.

Description

La présente invention a pour objet un dispositif de protection de ltembouchure d'un four rotatif conforme au brevet principal, constitué par un anneau forme de plusieurs pièces fixées c6te-a-câte sur la virole du four, chaque pièce comprenant une première partie venant se fier sur la virole du four, à l'intérieur de celle-cl, une seconde partie s'étendant transversalement à la première, å i 'extérieur du four et un bec s'détendant vers l'axe du four a partir de la zone de jonction des première et seconde parties, et caractérisé essentiellement par le fait que chaque pièce comporte, a l'extrémité de sa partie extérieure opposée a l'extrémité attenante audit bec, une aile s'entendant vers l'avant suivant une direction sensiblement parallèle à celle de la partie intérieure, et que ledit bec s'étend axialement vers l'avant suivant une direction faisant un angle au plus égal à 509 avec l'axe du four et forme avec ladite aile une cavité remplie d'un matériau de protection. The present invention relates to a device for protecting the mouth of a rotary oven in accordance with the main patent, consisting of a ring formed from several pieces fixed side by side on the shell of the oven, each piece comprising a first part coming from proud on the shell of the oven, inside it, a second part extending transversely to the first, outside the oven and a spout extending towards the axis of the oven from the area junction of the first and second parts, and characterized essentially by the fact that each part comprises, at the end of its outer part opposite the end adjoining said spout, a wing which is heard forwards in a substantially parallel direction to that of the inner part, and that said spout extends axially forwards in a direction making an angle at most equal to 509 with the axis of the oven and forms with said wing a cavity filled with a material protection.

Selon le brevet principal, le matériau de protection est un béton refractaire qui est coulé dans la cavité ménagée à cet effet dans chaque pièce avant son montage sur le four et qui y est retenu, après durcissement, par des rebords du bec et de l'aile et éventuellement par des éléments d'ancrage fixés sur la partie extérieure de la pièce. Lorsqu elles atteignent un certain degré d'usure, ce pièce doivent entre remplacées, car il n'est pas possible de couler un nouveau béton réfractaire dans les cavités sans les démonter. Même après démontage, le regarnissage des pièces est une opération difficile, car il faut casser le béton restant pour nettoyer le cavités, et parfois impossible si les ailes sont trop stems.  According to the main patent, the protective material is refractory concrete which is poured into the cavity provided for this purpose in each part before it is mounted on the oven and which is retained there, after hardening, by edges of the spout and the wing and possibly by anchoring elements fixed on the external part of the part. When they reach a certain degree of wear, this part must be replaced, since it is not possible to pour new refractory concrete into the cavities without dismantling them. Even after dismantling, relining the parts is a difficult operation, since the remaining concrete must be broken to clean the cavities, and sometimes impossible if the wings are too stems.

Le but de la présente invention est d'porter au dispositif du brevet principal de perfectionnements permettant de remplacer facilement et rapidement le garnissage de protection et, par conséquent, d augmenter la durée de vie des pièces du dispositif. The object of the present invention is to bring improvements to the device of the main patent which make it possible to easily and quickly replace the protective lining and, consequently, to increase the life of the parts of the device.

Le dispositif objet de la présente invention est caractérisé en ce qu'on utilise comme garnissage de protection des blocs préformés dont la forme est adaptée a celle de la cavité des pièces et en ce que les dits blocs sont maintenus en place par des éléments C-e fixation détachables fixés sur l'extrémité de la partie extérieure des pièces. Ces éléments de fixation peuvent constituer l'aile des pièces. En variante, chaque bloc peut être ancré sur une plaque appliquée sur la partie extérieure des pièces et fixée a l'extrémité de celle-ci par des vis ou des boulons; dans cette forme de réalisation, ;'aile peut être supprimée.  The device which is the subject of the present invention is characterized in that preformed blocks are used as protective lining, the shape of which is adapted to that of the cavity of the parts, and in that said blocks are held in place by elements. detachable attached to the end of the outer part of the parts. These fastening elements can constitute the wing of the parts. As a variant, each block can be anchored to a plate applied to the external part of the parts and fixed to the end of the latter by screws or bolts; in this embodiment, the wing can be omitted.

La description qui suit se réfère au dessins l'accompagnant qui montrent, a titre d'e emple non limitatif, deux modes de réalisation de l'invention. The following description refers to the accompanying drawings which show, by way of non-limiting example, two embodiments of the invention.

Sur ces dessins :
La figure 1 est une vue en coupe longitudinale, partielle,de 1 'extrémité d'un for tubulaire rotatif équipé d'un anneau de protection selon l'invention.In these drawings:
Figure 1 is a partial longitudinal sectional view of one end of a rotary tubular for equipped with a protective ring according to the invention.

La figure 2 est une vue, analogue å la figure 1, d'une autre forme de réalisation de l'invention. Figure 2 is a view, similar to Figure 1, of another embodiment of the invention.

Les pièces 14 constituant 1 'anneau de protection du four 10-12 ont la même forme générale que celles objet du brevet principal. Chacune d'elles comprend une première partie là fixée sur la virole 10 du four, à l'intérieur de celle-ci, une seconde partie 22 s'étendant radialement vers l'extérieur du four et un bec 24 incliné vers l'avant et vers l'axe du four et formant avec ce dernier un angle Q au plus égal à 00.  The parts 14 constituting the protective ring of the oven 10-12 have the same general shape as those which are the subject of the main patent. Each of them comprises a first part there fixed on the shell 10 of the oven, inside the latter, a second part 22 extending radially towards the outside of the oven and a spout 24 inclined towards the front and towards the axis of the oven and forming with it an angle Q at most equal to 00.

Une aile 26 s'étendant vers l'avant du four, parallèlement a son ae, est fixée par des boulons 27 sur l'extrémité extérieure de la partie 22. Elle forme avec le bec 24 une cavité dans laquelle est logé un bloc de protection 28, par exemple en béton réfractaire, qui est maintenu en place par les rebords du bec et de 1 'aile. Ces blocs qui sont prémoulés et ont une forme adaptée à celle de la cavité, peuvent être facilement remplacés, lorsqu'ils sont usés ou détériorés, en démontant les ailes 26, sans
qu il soit nécessaire de démonter 1 - anneau de protection.A wing 26 extending towards the front of the oven, parallel to its ae, is fixed by bolts 27 on the outer end of the part 22. It forms with the spout 24 a cavity in which is housed a protective block 28, for example in refractory concrete, which is held in place by the edges of the spout and of the wing. These blocks which are pre-molded and have a shape adapted to that of the cavity, can be easily replaced, when they are worn or damaged, by dismantling the wings 26, without
that it is necessary to disassemble 1 - protection ring.

Dans la forme de réalisation de la figure 2, le bloc 28' est rendu solidaire d'une plaque métallique 30 par des éléments d'ancrage 32 noyés dans le bloc au moulage. Cette plaque sert de support au bloc et s'applique sur la partie 22' des pièces 14' auxquelles elle est fiée au moyen de vis ou boulons 4. Le bloc 2E' est en outre maintenu en place par le rebord du bec 24'. In the embodiment of Figure 2, the block 28 'is made integral with a metal plate 30 by anchoring elements 32 embedded in the block during molding. This plate serves as a support for the block and is applied to the part 22 'of the parts 14' to which it is attached by means of screws or bolts 4. The block 2E 'is also held in place by the edge of the spout 24'.

Dans cette forme de réali=ation, l'aile 26' est constituée par un rebord de la plaque 30. En variante, l'aile pourrait être ir,dependante de la plaque 30 et fixée sur la partie 22', par exemple au moyen des vis ou boulons 4; elle pourrait éventuellement être supprimée. In this form of realization, the wing 26 ′ is constituted by a flange of the plate 30. As a variant, the wing could be ir, dependent on the plate 30 and fixed on the part 22 ′, for example by means screws or bolts 4; it could possibly be deleted.

D'autres moyens techniquement équivalents peuvent être prévus pour maintenir les blocs de protection sur les pièces constituant l'anneau de faÇon à permettre le remplacement desdits blocs, et il est bien entendu que ces moyens entrent dans le cadre de l'invention.  Other technically equivalent means can be provided to maintain the protective blocks on the parts constituting the ring so as to allow the replacement of said blocks, and it is understood that these means are within the scope of the invention.

Claims (4)

REv'ENbICATIONSREv'ENbICATIONS 1. Dispositif de protection selon la re-endication 1 du brevet principal, caractérisé en ce que ladite cavité est garnie d'un bloc prémoulé (2-8, 28') dont la forme est adaptée à celle de la cavité et en ce que ledit bloc est maintenu en place par des moyens de fixation amovibles (26, 27, 34).1. Protection device according to re-endication 1 of the main patent, characterized in that said cavity is furnished with a pre-molded block (2-8, 28 ') whose shape is adapted to that of the cavity and in that said block is held in place by removable fixing means (26, 27, 34). 2. Dispositif selon la revendication 1, caractérisé en ce que ledit bloc (28) est maintenu en place par ladite aile (26) qui est fixée de manière amovible sur l'extrémité de la partie extérieure de chaque pièce (14).2. Device according to claim 1, characterized in that said block (28) is held in place by said wing (26) which is removably fixed on the end of the outer part of each part (14). Dispositif selon la revendication 1, caractérisé en ce que ledit bloc (28') est solidaire d'une embase métallique (30) qui est fixée de manière amovible sur la partie extérieure (22') de chaque pièce (14'). Device according to claim 1, characterized in that said block (28 ') is integral with a metal base (30) which is removably attached to the outer part (22') of each piece (14 '). 4. Dispositif selon la revendication 3, caractérisé en ce que ladite embase (0) est munie d'un rebord (26') constituant ladite aile.4. Device according to claim 3, characterized in that said base (0) is provided with a flange (26 ') constituting said wing. S. Dispositif de protection de ltembouchure d'un four rotatif selon la revendication 1 du brevet principal et constitué par un anneau formé de plusieurs pièces fiées cete-à-c8te sur la virole du four, chaque pièce comprenant une première partie venant se fixer sur la virole, à l'intérieur de celle-ci, une seconde partie s'étendant transversalement å la première, a l'extérieur du four, et un bec s'étendant vers l'avant et vers 1 .e e du four, a partir de la zone de jonction des premlere et seconde parties, caractérisé en ce qu'un bloc d un matériau de protection (28) est maintenu en place sur la seconde partie (22) de chaque pièce (14), d'une part, par un rebord dudit bec S24) et, d'autre part, par une aile (26) munie d un rebord et fixée de manière amovible sur l'extrémité de cette seconde partie (22). S. A device for protecting the mouth of a rotary oven according to claim 1 of the main patent and consisting of a ring formed from several pieces attached to the ferrule of the oven, each piece comprising a first part which is fixed on the ferrule, inside thereof, a second part extending transversely to the first, outside the oven, and a spout extending forward and towards the end of the oven, starting from of the junction zone of the first and second parts, characterized in that a block of protective material (28) is held in place on the second part (22) of each part (14), on the one hand, by a rim of said spout S24) and, on the other hand, by a wing (26) provided with a rim and fixed in a removable manner on the end of this second part (22). 6. Dispositif de protection de 1 'emboucrure d 'un four rotatif selon la revendication 1 du brevet principal et constitué par un anneau formé de plusieurs pièces fixées côte-à-côte sur la virole du four, chaque pièce comprenant une première partie venant se fixer sur la virole, a l'intérieur de celle-ci, une seconde partie s'étendant transversalement å la première, à l'extérieur du four, et un bec s'étendant vers l'avant et vers l'axe d 'a.-- < e du four à partir de la zone de jonction des premiere et seconde parties, caractérisé en ce qu'un bloc d'un matériau de protection (28') solidaire d'une embase métallique (-0) est maintenu en place sur la seconde partie (22') de chaque pièce (14'), d'une part, par un rebord ducit bec (24') et, d'autre part, par des vis ou boulons ( 4) assurant la fixation de ladite embase sur cette seconde partie. 6. A device for protecting the mouth of a rotary kiln according to claim 1 of the main patent and constituted by a ring formed from several parts fixed side by side on the shell of the furnace, each part comprising a first part coming from fix on the ferrule, inside the latter, a second part extending transversely to the first, outside the furnace, and a spout extending forwards and towards the axis of a - <e of the oven from the junction zone of the first and second parts, characterized in that a block of protective material (28 ') secured to a metal base (-0) is maintained in place on the second part (22 ') of each part (14'), on the one hand, by a rim ducit spout (24 ') and, on the other hand, by screws or bolts (4) ensuring the fixing of said base on this second part.
FR8809865A 1987-07-17 1988-07-21 DEVICE FOR PROTECTING THE MOUTH OF A ROTARY OVEN Expired - Lifetime FR2634545B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8809865A FR2634545B2 (en) 1987-07-17 1988-07-21 DEVICE FOR PROTECTING THE MOUTH OF A ROTARY OVEN

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8710116A FR2618215B1 (en) 1987-07-17 1987-07-17 DEVICE FOR PROTECTING THE MOUTH OF A ROTARY OVEN.
FR8809865A FR2634545B2 (en) 1987-07-17 1988-07-21 DEVICE FOR PROTECTING THE MOUTH OF A ROTARY OVEN

Publications (2)

Publication Number Publication Date
FR2634545A2 true FR2634545A2 (en) 1990-01-26
FR2634545B2 FR2634545B2 (en) 1991-03-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010745A1 (en) * 1993-10-09 1995-04-20 Maury Hans Dietmar Inlet for feeding raw materials into a rotary drum
CN101701765A (en) * 2009-09-22 2010-05-05 洛阳新安电力集团炭素有限公司 Method for improving and strengthening kiln head guard plate of rotary kiln
CN101984318A (en) * 2010-12-01 2011-03-09 新兴河北工程技术有限公司 Kiln end of pellet rotary kiln tail

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149456A1 (en) * 1971-10-04 1973-04-12 Buettner Schilde Haas Ag Rotary furnace - in which cast boss and locking ring attaches ring segment to end ring
DE2329061A1 (en) * 1973-06-07 1975-01-02 Kloeckner Humboldt Deutz Ag Rotary kiln discharge ring is segmental - each segment divided into robust inner part and outer part
EP0012660A1 (en) * 1978-12-07 1980-06-25 FIVES-CAIL BABCOCK, Société anonyme Protection device for the discharge end of a rotary-drum furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149456A1 (en) * 1971-10-04 1973-04-12 Buettner Schilde Haas Ag Rotary furnace - in which cast boss and locking ring attaches ring segment to end ring
DE2329061A1 (en) * 1973-06-07 1975-01-02 Kloeckner Humboldt Deutz Ag Rotary kiln discharge ring is segmental - each segment divided into robust inner part and outer part
EP0012660A1 (en) * 1978-12-07 1980-06-25 FIVES-CAIL BABCOCK, Société anonyme Protection device for the discharge end of a rotary-drum furnace

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010745A1 (en) * 1993-10-09 1995-04-20 Maury Hans Dietmar Inlet for feeding raw materials into a rotary drum
US5730590A (en) * 1993-10-09 1998-03-24 Maury; Hans-Dietmar Inlet for feeding raw materials into a rotary drum
CN101701765A (en) * 2009-09-22 2010-05-05 洛阳新安电力集团炭素有限公司 Method for improving and strengthening kiln head guard plate of rotary kiln
CN101701765B (en) * 2009-09-22 2012-12-26 洛阳新安电力集团炭素有限公司 Method for improving and strengthening kiln head guard plate of rotary kiln
CN101984318A (en) * 2010-12-01 2011-03-09 新兴河北工程技术有限公司 Kiln end of pellet rotary kiln tail

Also Published As

Publication number Publication date
FR2634545B2 (en) 1991-03-29

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