EP3728947B1 - Burner maintenance tool and method of use thereof - Google Patents

Burner maintenance tool and method of use thereof Download PDF

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Publication number
EP3728947B1
EP3728947B1 EP18833934.5A EP18833934A EP3728947B1 EP 3728947 B1 EP3728947 B1 EP 3728947B1 EP 18833934 A EP18833934 A EP 18833934A EP 3728947 B1 EP3728947 B1 EP 3728947B1
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EP
European Patent Office
Prior art keywords
scraper
support tube
burner
cleaning
axis
Prior art date
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Active
Application number
EP18833934.5A
Other languages
German (de)
French (fr)
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EP3728947A1 (en
Inventor
Antoine LARIGNON
Guan SENMU
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Fives Pillard SA
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Fives Pillard SA
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Publication of EP3728947A1 publication Critical patent/EP3728947A1/en
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Publication of EP3728947B1 publication Critical patent/EP3728947B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/50—Cleaning devices therefor
    • B08B1/165—
    • B08B1/32—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/04—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by a combination of operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/38—Nozzles; Cleaning devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/38—Nozzles; Cleaning devices therefor
    • F23D11/386—Nozzle cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
    • B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
    • B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00002—Cleaning burner parts, e.g. burner tips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/31018—Nozzles and cleaning devices therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)

Description

La présente invention se rapporte aux fours rotatifs et plus particulièrement aux brûleurs de ces fours.The present invention relates to rotary kilns and more particularly to the burners of these kilns.

Pour obtenir une combustion correcte et une forme de flamme maîtrisée, les brûleurs présents dans les fours rotatifs (notamment cimentier, producteur de chaux...) génèrent des écoulements d'air à hautes voir très hautes vitesses (200-300 m/s). Ces niveaux de vitesses peuvent en fonction des conditions régnant dans le four (température, quantité de poussière, pourcentage de phase liquide dans les composés chimiques) créer des concrétions se fixant sur les embouts du brûleur. Leurs accumulations finissent par réduire les performances du brûleur, par déviation de la flamme, ce qui entraîne des conséquences sur le process (qualité de production, durée de vie du revêtement réfractaire du four ...), pouvant obliger l'utilisateur à arrêter son four pour nettoyer les embouts du brûleur.To obtain correct combustion and a controlled flame shape, the burners present in rotary kilns (particularly cement manufacturers, lime producers, etc.) generate air flows at high or even very high speeds (200-300 m/s) . These speed levels can, depending on the conditions prevailing in the furnace (temperature, quantity of dust, percentage of liquid phase in the chemical compounds), create concretions that attach themselves to the tips of the burner. Their accumulation ends up reducing the performance of the burner, by deflection of the flame, which has consequences for the process (production quality, lifespan of the refractory lining of the furnace, etc.), which may force the user to stop his oven to clean the burner tips.

Pour nettoyer les concrétions, les cimentiers utilisent en fonctionnement une barre métallique, une lance à eau ... Ces dispositifs sont sommaires et très peu efficaces, mais surtout dangereux pour les personnels et l'imprécision des nettoyages provoque un endommagement du réfractaire protégeant le brûleur. Un dispositif de nettoyage selon l'état de la technique est décrit par le document US3175239 .To clean the concretions, the cement workers use a metal bar, a water lance, etc. These devices are basic and very inefficient, but above all dangerous for the personnel and the inaccuracy of the cleaning causes damage to the refractory protecting the burner. . A cleaning device according to the state of the art is described by the document US3175239 .

Il existe un besoin d'empêcher l'accumulation de concrétions sur les embouts du brûleur qui peuvent générer des bouchages de l'air entraînant des déviations de flamme, tout en évitant d'arrêter la production liés aux dommages sur les briques réfractaires induites par une déviation de flamme, ou la dégradation de la qualité de la production et proposer une solution sûre et fiable pour cette opération de maintenance indispensable.There is a need to prevent the accumulation of concretions on the tips of the burner which can generate clogging of the air resulting in flame deviations, while avoiding production stoppages linked to damage to the refractory bricks induced by a flame deflection, or degradation of production quality and offer a safe and reliable solution for this essential maintenance operation.

L'objet de l'invention est de mettre en place un système de nettoyage des embouts permettant d'effectuer une opération de maintenance sans danger, avec le brûleur en fonctionnement, et sans risquer un arrêt four qui est coûteux.The object of the invention is to set up a system for cleaning the nozzles making it possible to carry out a maintenance operation without danger, with the burner in operation, and without risking a furnace shutdown which is costly.

L'objet de l'invention consiste en un dispositif selon l'objet de la revendication 1. Il peut être mis en place et manipulé par l'arrière du brûleur ce qui garantit une bonne sécurité pour les interventions. Sa rotation autour de l'embout du brûleur permet de nettoyer efficacement les concrétions quel que soit leur nature (forme, dureté...). Il est suffisamment robuste pour pouvoir être utilisé sans arrêter le brûleur lors de son fonctionnement (tenue en température, maintien en position, répétabilité de l'utilisation). Le dispositif pourra par exemple être en inox réfractaire.The object of the invention consists of a device according to the object of claim 1. It can be put in place and handled from behind the burner, which guarantees good safety for interventions. Its rotation around the tip of the burner makes it possible to effectively clean concretions whatever their nature (shape, hardness, etc.). It is robust enough to be able to be used without stopping the burner during operation (temperature resistance, maintenance in position, repeatability of use). The device may for example be made of refractory stainless steel.

Avantageusement, le tube support est relié à un moyen de martèlement selon l'axe X. Il est ainsi possible de translater le racleur d'avant en arrière suivant l'axe X selon un mouvement longitudinal périodique ou non, ce qui crée des coups répétés sur ledit embout par le racleur. Ainsi, le nettoyage des embouts peut se faire par action de récurage par un mouvement de rotation ou par action de martèlement par un mouvement de translation ou par la combinaison des deux actions.Advantageously, the support tube is connected to a hammering means along the X axis. It is thus possible to translate the scraper back and forth along the X axis according to a periodic longitudinal movement or not, which creates repeated blows on said tip by the scraper. Thus, the cleaning of the tips can be done by scouring action by a rotational movement or by hammering action by a translational movement or by the combination of the two actions.

Avantageusement, le câble métallique est disposé à l'extérieur du tube support. Un ensemble de tubes guide fixés au tube support, maintient le câble à la bonne position pour éviter tout pincement entre l'outil et le tube dans lequel il est inséré.Advantageously, the metal cable is arranged outside the support tube. A set of guide tubes fixed to the support tube, keeps the cable in the right position to avoid any pinching between the tool and the tube in which it is inserted.

En variante, le câble peut être disposé à l'intérieur du tube support pour bénéficier de la protection mécanique de celui-ci. Ainsi rien ne dépasse du tube support dans le brûleurAs a variant, the cable can be arranged inside the support tube to benefit from the mechanical protection of the latter. So nothing protrudes from the support tube in the burner

Avantageusement, le tube support et le racleur ont un diamètre Φ ≤ 73mm. Le diamètre du tube support et du racleur sont de taille restreinte de manière à pouvoir être inséré dans un tube standard. Le dispositif est ainsi compact et apte à être inséré dans la plupart des brûleurs sans modification coûteuse, par une ouverture de section réduite.Advantageously, the support tube and the scraper have a diameter Φ≤73mm. The diameter of the support tube and the scraper are of restricted size so that they can be inserted into a standard tube. The device is thus compact and able to be inserted into most burners without costly modification, through an opening of reduced section.

Avantageusement, le racleur est démontable et interchangeable. Il est ainsi possible de s'adapter aux différents diamètres de brûleurs en choisissant des racleurs plus ou moins longs et choisir différents types de racleurs, plus ou moins affûté pour améliorer le récurage de l'embout, et permettant ou non d'injecter de l'air sous pression ou des matériaux pulvérulents.Advantageously, the scraper is removable and interchangeable. It is thus possible to adapt to the different diameters of burners by choosing more or less long scrapers and to choose different types of scrapers, more or less sharpened to improve the scouring of the tip, and allowing or not to inject gas. pressurized air or powdery materials.

Avantageusement, le tube support est démontable et interchangeable. Il est ainsi possible de s'adapter aux différentes longueurs de brûleurs en choisissant des tubes plus ou moins longs, voire en soudant un tube supplémentaire sur le tube support. Le câble est prévu suffisamment long ou il est remplacé en fonction de la nouvelle longueur du brûleur.Advantageously, the support tube is removable and interchangeable. It is thus possible to adapt to different burner lengths by choosing more or less long tubes, or even by welding an additional tube to the support tube. The cable is provided long enough or it is replaced according to the new length of the burner.

Avantageusement, le tube support et le racleur sont creux et communiquant, le tube support est ouvert des deux côtés, le racleur comprend des trous communiquant avec l'intérieur dudit racleur et disposés sur un côté et le tube support et le racleur sont destinés à être parcourrus par de l'air comprimé. L'air comprimé circule du tube support vers le racleur. L'air comprimé est injecté dans le tube support jusqu'à l'intérieur du racleur d'où il sort par les trous, et il permet un mode de nettoyage adapté à certaines conditions d'encrassement du brûleur, il permet également de maintenir plus longtemps le racleur dans la flamme, sans risquer sa dégradation liée aux températures élevées à l'intérieur du four.Advantageously, the support tube and the scraper are hollow and communicating, the support tube is open on both sides, the scraper comprises holes communicating with the interior of said scraper and arranged on one side and the support tube and the scraper are intended to be driven by compressed air. Compressed air flows from the support tube to the scraper. The compressed air is injected into the support tube up to the inside of the scraper from where it comes out through the holes, and it allows a cleaning mode adapted to certain clogging conditions of the burner, it also makes it possible to maintain more the scraper in the flame for a long time, without risking its degradation due to the high temperatures inside the oven.

Avantageusement, le tube support et le racleur sont creux et communiquant, le tube support est ouvert des deux côtés, le racleur comprend des trous communiquant avec l'intérieur dudit racleur et disposés sur un côté et le tube support et le racleur sont parcourus un fluide chargé d'un matériau. Le matériau pulvérulent circule du pulvérulent circule du du tube support vers le racleur. De la même façon que pour l'air comprimé, le fluide chargé d'un matériau pulvérulent comme par exemple du sable permet un mode de nettoyage adapté à des conditions d'encrassement du brûleur importante. Le fluide utilisé pourra être de l'air comprimé. Dans ce cas les trous pourront être d'un diamètre plus important.Advantageously, the support tube and the scraper are hollow and communicating, the support tube is open on both sides, the scraper comprises holes communicating with the interior of said scraper and arranged on one side and the support tube and the scraper are traversed by a fluid loaded with material. The powder material circulates powder circulates du du support tube to the scraper. In the same way as for compressed air, the fluid charged with a pulverulent material such as for example sand allows a mode of cleaning adapted to conditions of heavy fouling of the burner. The fluid used may be compressed air. In this case the holes may be of a larger diameter.

Avantageusement, le système de mise en rotation de l'ensemble du dispositif est un volant motorisé. Le nettoyage peut ainsi être automatisé.Advantageously, the system for rotating the entire device is a motorized flywheel. Cleaning can thus be automated.

L'invention concerne également un procédé selon l'objet de la reveindication 9. Le dispositif permet un procédé de nettoyage mécanique simple et efficace.The invention also relates to a method according to the subject of claim 9. The device allows a simple and effective mechanical cleaning method.

Avantageusement, l'insertion et le placement du dispositif est faite à l'aide d'un vérin. Il est ainsi possible d'automatiser le procédé.Advantageously, the insertion and placement of the device is done using a jack. It is thus possible to automate the process.

Avantageusement, le dispositif est mis en translation selon l'axe X manuellement ou à l'aide d'un vérin motorisé, ce qui permet en plus de l'effort de raclement, d'effectuer un effort de martèlement sur les collages trop importants.Advantageously, the device is moved along the X axis manually or with the aid of a motorized cylinder, which allows, in addition to the scraping force, to perform a hammering force on excessively large bonds.

Ainsi, le nettoyage des embouts se fait par action de récurage par un mouvement de rotation ou par action de martèlement par un mouvement de translation ou par la combinaison des deux actionsThus, the cleaning of the tips is done by scouring action by a rotational movement or by hammering action by a translational movement or by the combination of the two actions

Avantageusement, le câble métallique est relié à l'autre de ses extrémités à un treuil motorisé. Il est ainsi possible d'automatiser le procédé.Advantageously, the metal cable is connected at the other of its ends to a motorized winch. It is thus possible to automate the process.

D'autres avantages pourront encore apparaître à l'homme du métier à la lecture des exemples ci-dessous, illustrés par les figures annexées, donnés à titre d'exemple :

  • La figure 1 est une perspective du dispositif selon l'invention,
  • La figure 2 est une coupe du dispositif selon l'axe X,
  • La figure 2A est une coupe du dispositif selon AA,
  • La figure 3 est une coupe du racleur aligné avec le tube,
  • La figure 4 est une coupe du racleur selon IV-IV,
  • La figure 5 est une vue schématique d'un brûleur équipé du dispositif selon l'invention,
  • Les figures 6 et 7 sont des vues de face de l'embout de différents brûleurs avec le dispositif selon l'invention.
Other advantages may also appear to those skilled in the art on reading the examples below, illustrated by the appended figures, given by way of example:
  • There figure 1 is a perspective of the device according to the invention,
  • There figure 2 is a section of the device along the X axis,
  • There figure 2A is a section of the device according to AA,
  • There picture 3 is a section of the scraper aligned with the tube,
  • There figure 4 is a section of the scraper according to IV-IV,
  • There figure 5 is a schematic view of a burner equipped with the device according to the invention,
  • THE figures 6 and 7 are front views of the nozzle of different burners with the device according to the invention.

Le dispositif 1 comprend un tube support 2 d'axe X, un câble métallique 3, un racleur 4 de forme allongée fixé au tube support 2, un système 5 de mise et de maintien en position du racleur 4, un moyen 6 de mise en rotation du dispositif 1.The device 1 comprises a support tube 2 of axis X, a metal cable 3, a scraper 4 of elongated shape fixed to the support tube 2, a system 5 for placing and holding the scraper 4 in position, a means 6 for rotation of the device 1.

A la figure 1, le câble métallique 3 est placé le long du tube support 2 (figure 2A) dans des tubes guides 21 fixés au tube support 2, mais il pourra aussi être disposé à l'intérieur du tube support 2 (figure 5).To the figure 1 , the wire rope 3 is placed along the support tube 2 ( figure 2A ) in the guide tubes 21 fixed to the support tube 2, but it could also be arranged inside the support tube 2 ( figure 5 ).

Le câble métallique 3 est relié à l'une de ses extrémités au racleur 4 et à l'autre extrémité à un système 5 de mise et de maintien en position du racleur 4.The metal cable 3 is connected at one of its ends to the scraper 4 and at the other end to a system 5 for placing and holding the scraper 4 in position.

Le racleur 4 est articulé sur le tube support 2 autour d'un axe Y perpendiculaire à l'axe X à l'extrémité dudit tube support 2. Il a deux positions: une position alignée sur l'axe X dans le prolongement du tube 2 et une deuxième position perpendiculaire à l'axe X correspondant à la position d'utilisation du racleur 4. Le système 5 permet le basculement du racleur d'une position à l'autre et son maintien en position. Le système 5 est constitué d'un bras de levier 50 entraînant une poulie 51 sur laquelle est enroulé le câble métallique 3. Le bras de levier 50 peut être bloqué pour immobiliser le racleur 4.The scraper 4 is articulated on the support tube 2 around an axis Y perpendicular to the axis X at the end of said support tube 2. It has two positions: a position aligned on the axis X in the extension of the tube 2 and a second position perpendicular to the axis X corresponding to the position of use of the scraper 4. The system 5 allows the tilting of the scraper from one position to another and its maintenance in position. The system 5 consists of a lever arm 50 driving a pulley 51 on which the metal cable 3 is wound. The lever arm 50 can be blocked to immobilize the scraper 4.

Sur les figures 1 et 2, le tube support 2 est relié à un volant 60 qui constitue le moyen de mise en rotation 6. Il pourra être motorisé.On the figures 1 and 2 , the support tube 2 is connected to a flywheel 60 which constitutes the rotation means 6. It may be motorized.

Dans une variante, le racleur 4 est creux et présente des trous 40 reliant le creux 41 à l'extérieur. Ces trous 40 sont répartis sur la longueur du racleur 4. Ils pourront être répartis régulièrement ou non.In a variant, the scraper 4 is hollow and has holes 40 connecting the hollow 41 to the outside. These holes 40 are distributed over the length of the scraper 4. They may be distributed regularly or not.

Comme visible figure 4, le racleur 4 a une partie biseauté 42 sur son profil. La partie biseauté 42 présente deux faces 420 et 421. Une face est percée de trous 40, ou les deux. Lorsque les deux faces 420 et 421 sont toutes les deux percées, les trous 40 peuvent être décalés ou en quinconce d'une face à l'autre ou non.As seen figure 4 , the scraper 4 has a beveled part 42 on its profile. The beveled part 42 has two faces 420 and 421. One face is pierced with holes 40, or both. When the two faces 420 and 421 are both pierced, the holes 40 can be staggered or staggered from one face to the other or not.

Le racleur 4 présente un perçage 43 près de son articulation 44, ce perçage est aligné avec l'intérieur 20 du tube support 2 lorsque le racleur est perpendiculaire au tube support en position d'utilisation.The scraper 4 has a bore 43 near its articulation 44, this bore is aligned with the interior 20 of the support tube 2 when the scraper is perpendicular to the support tube in the position of use.

Nous allons maintenant décrire le procédé de nettoyage d'un brûleur 7 par le dispositif 1.We will now describe the method of cleaning a burner 7 by the device 1.

Le dispositif 1 est mis en position allongée où le tube support 2 et le racleur 4 sont dans le prolongement l'un de l'autre comme illustré figure 3. Le dispositif 1 est introduit dans le brûleur 7 depuis l'arrière dudit brûleur 7 jusqu'à ce que le racleur 4 sorte totalement du brûleur coté four. L'introduction peut être réalisée au centre ou non.The device 1 is placed in the extended position where the support tube 2 and the scraper 4 are in the extension of one another as illustrated picture 3 . Device 1 is introduced into burner 7 from behind said burner 7 until scraper 4 comes completely out of the burner on the oven side. The introduction can be made in the center or not.

On actionne le système 5 qui fait basculer le racleur 4 de sa position allongée à sa position perpendiculaire au tube support 2 et le maintien en position en appui sur l'embout 70 du brûleur. Le système de mise et de maintien en position est réalisé par l'intermédiaire d'un treuil à cliquet appliqué à une roue dentée qui permet au racleur de rester en appui sur l'embout 70.The system 5 is actuated which tilts the scraper 4 from its extended position to its position perpendicular to the support tube 2 and maintains it in the position resting on the end piece 70 of the burner. The positioning and holding system is carried out by means of a ratchet winch applied to a toothed wheel which allows the scraper to remain supported on the end piece 70.

Le dispositif 1 est mis en rotation par le volant 60 manuellement ou par un moteur, entraînant le racleur 4 qui va frotter sur toute la périphérie de l'embout 70 du brûleur 7 et retirer les concrétions qui y sont accumulées.The device 1 is rotated by the flywheel 60 manually or by a motor, driving the scraper 4 which will rub over the entire periphery of the tip 70 of the burner 7 and remove the concretions which are accumulated there.

Le dispositif 1 peut également être mû en translation suivant l'axe X manuellement ou par un vérin motorisé, entraînant le racleur 4 qui va marteler la surface de l'embout 70 du brûleur 7 et détacher les concrétions qui y sont accumulées.The device 1 can also be moved in translation along the X axis manually or by a motorized jack, driving the scraper 4 which goes hammer the surface of the tip 70 of the burner 7 and detach the concretions which have accumulated there.

En fonction de la nature des différents collages (forme, dureté...), le dispositif offre plusieurs possibilités. Le racleur 4 étant démontable et interchangeable, on peut choisir différent types de racleur 4.Depending on the nature of the different bonds (shape, hardness, etc.), the device offers several possibilities. The scraper 4 being removable and interchangeable, one can choose different types of scraper 4.

Si le concrétions sont collées de façon peu dure et sont de taille peu importante cela nécessite qu'une courte durée d'utilisation de l'outil (<5min), on équipera le dispositif 1 d'un racleur 4 permettant un nettoyage mécanique simple, par exemple sans trous 40.If the concretions are glued in a not very hard way and are of small size, this requires only a short period of use of the tool (<5min), the device 1 will be equipped with a scraper 4 allowing simple mechanical cleaning, for example without holes 40.

Si les concrétions sont collées de façon dure mais sont de taille peu importante, cela nécessite une durée d'utilisation de l'outil plus importante (>5min), on équipera le dispositif 1 d'un racleur 4 avec des trous 40 permettant un nettoyage mécanique assisté d'un nettoyage pneumatique sous pression, réalisé par ajout d'air comprimé permettant :

  • ▪ d'augmenter l'efficacité de nettoyage
  • ▪ de bénéficier d'un refroidissement de l'outil
If the concretions are glued in a hard way but are of small size, this requires a longer tool use time (>5min), the device 1 will be equipped with a scraper 4 with holes 40 allowing cleaning mechanical assisted by pneumatic cleaning under pressure, carried out by adding compressed air allowing:
  • ▪ increase cleaning efficiency
  • ▪ benefit from tool cooling

Si les concrétions sont collées de façon dure et sont de taille importante, la durée d'utilisation sera plus importante (>5min) et le dispositif 1 sera équipé par un racleur 4 troué permettant un nettoyage mécanique assisté d'un nettoyage par sablage sous pression, réalisé par ajout d'air comprimé chargé d'un matériau pulvérulent (sable, abrasifs, poussière...) permettant :

  • ▪ d'augmenter l'efficacité de nettoyage
  • ▪ de bénéficier d'un refroidissement de l'outil
If the concretions are glued in a hard way and are large in size, the duration of use will be greater (>5min) and the device 1 will be equipped with a scraper 4 with holes allowing mechanical cleaning assisted by cleaning by pressure sandblasting , produced by adding compressed air charged with a powdery material (sand, abrasives, dust, etc.) allowing:
  • ▪ increase cleaning efficiency
  • ▪ benefit from tool cooling

La mise en mouvement du système s'effectue par le moyen 6 de mise en rotation 6, ce moyen peut être manuel ou automatisé par un mécanisme de type vérin et moteur.The system is set in motion by means 6 of rotation 6, this means can be manual or automated by a mechanism of the jack and motor type.

Claims (12)

  1. A device for cleaning a tip of a rotary kiln burner consisting of a support tube (2) having an axis X intended to pass through said burner and characterized in that the support tube (2) comprises a metal cable (3) connected at one of its ends to a scraper (4) and at the other end to a system (5) for positioning and holding the position of the scraper (4), in that the scraper (4) is articulated on the support tube (2) between a first position aligned with the axis X in the extension of the support tube (2) and a second position perpendicular to the axis X, in that the scraper has a beveled portion (42) on its profile and in that the support tube (2) is connected to a means (6) for rotating the entire device, the cleaning device being intended to be introduced into the burner until the scraper (4) exits completely from said burner on the kiln side.
  2. The device according to claim 1, characterized in that the support tube (2) is connected to a hammering means along the axis X.
  3. The device according to one of the preceding claims, characterized in that the support tube (2) and the scraper (4) have a diameter Φ ≤73 mm.
  4. The device according to one of the preceding claims, characterized in that the scraper (4) is removable and interchangeable.
  5. The device according to one of the preceding claims, characterized in that the support tube (2) is removable and interchangeable.
  6. The device according to one of the preceding claims, characterized in that the support tube (2) and the scraper (4) are hollow and in communication, in that the support tube is open on both sides, in that the scraper (4) comprises holes (40) in communication with the inside of said scraper and arranged on one side and that the support tube (2) and the scraper (4) are designed for compressed air to pass therethrough.
  7. The device according to one of the preceding claims,
    characterized in that the support tube (2) and the scraper (4) are hollow and in communication, in that the support tube is open on both sides, in that the scraper (4) comprises holes (40) in communication with the inside of said scraper and arranged on one side and the support tube (2) and the scraper (4) are designed for a fluid containing a powder material to pass therethrough.
  8. The device according to one of the preceding claims, characterized in that the means (6) for rotating the entire device is a motorized wheel.
  9. A method for cleaning a rotary kiln burner characterized in that it comprises the following steps:
    - Inserting and placing a cleaning device according to one of the preceding claims in the burner, said cleaning device being introduced into the burner until the scraper (4) exits said burner completely on the kiln side,
    - positioning the scraper from the first aligned position to the second perpendicular position via the system (5) for positioning and position-holding,
    - holding the scraper using the system (5) for positioning and position-holding
    - rotating the device using the rotating means (6).
  10. The cleaning method according to the preceding claim, characterized in that the insertion and placement of the device is done using an actuator.
  11. The cleaning method according to one of claims 9 or 10,
    characterized in that the device is translated along the axis X manually or by means of a motorized actuator.
  12. The cleaning method according to one of claims 9 to 11,
    characterized in that the metal cable (3) is connected at the other of its ends to a motorized winch.
EP18833934.5A 2017-12-21 2018-12-13 Burner maintenance tool and method of use thereof Active EP3728947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1762884A FR3075930B1 (en) 2017-12-21 2017-12-21 MAINTENANCE TOOL FOR BURNER
PCT/FR2018/053274 WO2019122622A1 (en) 2017-12-21 2018-12-13 Burner maintenance tool

Publications (2)

Publication Number Publication Date
EP3728947A1 EP3728947A1 (en) 2020-10-28
EP3728947B1 true EP3728947B1 (en) 2023-03-29

Family

ID=61655933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18833934.5A Active EP3728947B1 (en) 2017-12-21 2018-12-13 Burner maintenance tool and method of use thereof

Country Status (4)

Country Link
US (1) US11885491B2 (en)
EP (1) EP3728947B1 (en)
FR (1) FR3075930B1 (en)
WO (1) WO2019122622A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115770738A (en) * 2023-01-10 2023-03-10 北京京能高安屯燃气热电有限责任公司 Power plant combustor cleaning device
CN117847525A (en) * 2024-03-07 2024-04-09 西安重装铜川煤矿机械有限公司 Gas stove

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR367133A (en) * 1906-06-14 1906-10-20 Albert Ganstere Scaler device
US2126838A (en) * 1937-01-13 1938-08-16 John J Stoner Cleaning device for burner tips
DE684726C (en) * 1938-01-04 1939-12-04 Heinrich Stoetzel Adjustable jackhammer
US2342228A (en) * 1942-01-30 1944-02-22 Riley Stoker Corp Gas burner
US2429299A (en) * 1945-02-28 1947-10-21 Serafinovitch Chris Method and means of cleaning burners
US2755850A (en) * 1952-07-24 1956-07-24 W M Cissell Mfg Co Inc Gas burner
US3175239A (en) * 1963-08-06 1965-03-30 Koppers Co Inc Lance carriage mounted pneumatic jack hammer
DE2157841C2 (en) * 1971-11-22 1974-01-17 Alje Renger Groningen Nanninga (Niederlande) Device for piercing the nozzle opening of a torch
US4058870A (en) * 1976-07-09 1977-11-22 C. H. Heist Corporation Lance tip construction
US8495783B2 (en) * 2006-10-06 2013-07-30 Haldor Topsoe A/S Method and apparatus for cleaning of a burner
CN205939187U (en) * 2016-08-19 2017-02-08 河南汇金智能装备有限公司 Coke cutter
CN206683425U (en) * 2017-02-28 2017-11-28 上海万澄环保科技有限公司 A kind of coke cleaning apparatus of cement rotary kiln burner
CN208860148U (en) * 2018-09-12 2019-05-14 唐山冀东水泥三友有限公司 Cement combustor carbon distribution cleaning plant
CN216174999U (en) * 2021-09-11 2022-04-05 冀东水泥黑龙江有限公司 Burner coking cleaner
CN217635690U (en) * 2022-05-30 2022-10-21 上海法孚自动化成套设备有限公司 Device for cleaning coking at head of kiln burner

Also Published As

Publication number Publication date
US11885491B2 (en) 2024-01-30
FR3075930B1 (en) 2020-05-22
WO2019122622A1 (en) 2019-06-27
US20210172598A1 (en) 2021-06-10
EP3728947A1 (en) 2020-10-28
FR3075930A1 (en) 2019-06-28

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