EP1218550A1 - Device for distributing bulk materials with rotary chute having a variable angle of inclination - Google Patents

Device for distributing bulk materials with rotary chute having a variable angle of inclination

Info

Publication number
EP1218550A1
EP1218550A1 EP00958449A EP00958449A EP1218550A1 EP 1218550 A1 EP1218550 A1 EP 1218550A1 EP 00958449 A EP00958449 A EP 00958449A EP 00958449 A EP00958449 A EP 00958449A EP 1218550 A1 EP1218550 A1 EP 1218550A1
Authority
EP
European Patent Office
Prior art keywords
suspension
chute
rotor
control
control lever
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
EP00958449A
Other languages
German (de)
French (fr)
Other versions
EP1218550B1 (en
Inventor
Emile Lonardi
Giovanni Cimenti
Jean-Jacques Venturini
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.)
Paul Wurth SA
Original Assignee
Paul Wurth 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
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP1218550A1 publication Critical patent/EP1218550A1/en
Application granted granted Critical
Publication of EP1218550B1 publication Critical patent/EP1218550B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden

Definitions

  • Such devices for distributing bulk materials are for example used in tank furnace loading installations, in particular blast furnaces, where the rotary chute with variable inclination angle distributes the load inside. from the shaft oven. It will be appreciated that in such a device the chute is a wear element, which must be replaced from time to time. Hence the need to suspend the chute easily removable in its suspension rotor, while ensuring reliable transmission of a large pivoting moment on the chute.
  • the chute of the device described in US Patent 3,814,403 is provided with lateral suspension pins. On one side it comprises two spaced suspension pins, which are received in two separate housings of a suspension flange rotated by the pivoting mechanism, so that this suspension flange can transmit the moment of pivoting- lie at the chute. On the opposite side it includes a single suspension journal which can rotate in a housing with a fixed flange. The trunnions are fixed in the two flanges using transverse keys.
  • the chute of the device described in US Pat. No. 5,022,806 is also fitted with lateral suspension pins. On one side it includes two spaced suspension pins, which are received in a housing of a suspension flange rotated by the pivoting mechanism, so that this suspension flange can transmit the pivoting moment at the chute. On the opposite side it comprises a single pin which is received in a housing with a flange free to rotate on a pivot.
  • the chute of the device described in patent application DE 3342572 is provided with two specially shaped suspension arms. Each of these suspension arms is received in a housing of a suspension flange rotated by the pivoting mechanism.
  • the shape of the suspension arm ensures its blocking the housing of the suspension flange while allowing easy extraction of the chute after lifting it.
  • the two suspension flanges transmit the pivoting moment to the chute.
  • An object of the present invention is to provide a device for distributing bulk materials provided with a simpler and less bulky suspension of the chute, nevertheless making it possible to transmit significant pivoting moments to the chute, while ensuring easy disassembly and assembly of the chute. According to the invention, this objective is achieved by a device according to claim 1.
  • a device for distributing bulk materials according to the invention comprises a suspension rotor as well as a chute provided with two suspension arms. Each suspension arm is connected to the suspension rotor by means of a suspension axis, so as to define on the suspension rotor a pivot axis for the chute.
  • the device further comprises a drive mechanism for producing a pivoting moment capable of pivoting the chute around its pivot axis.
  • a control lever is associated with each of the two suspension arms and connected by means of an articulation to the suspension rotor.
  • the drive mechanism is then connected to the two control levers so as to transmit the pivoting moment symmetrically to them.
  • a stop on each two control levers cooperates with a counter-stop on the suspension arm with which the respective control lever is associated.
  • this drive mechanism comprises a control rotor with an axis of rotation coaxial with the suspension rotor, as well as an angular transmission carried by the suspension rotor.
  • the input shaft of this angular transmission is provided with a pinion which meshes with a ring gear carried by the control rotor.
  • Its output shaft is parallel to the pivot axis of the chute and is rotated when the input shaft is rotated by the control rotor.
  • a connecting rod-crank mechanism connects the output shaft to the control lever (s).
  • the stop is for example formed by a drive pivot carried by the control lever.
  • the abutment is then advantageously formed by a guide mortise arranged in said suspension arm of the chute. This guide mortise advantageously has a mouth in the free end of the arm, so that the drive pivot can be introduced therein by a translation of the suspension arm perpendicular to the drive pivot.
  • each of the two suspension axes is preferably easily dismounted in a housing of the suspension rotor.
  • each of the two suspension arms of the chute advantageously comprises an oblong hole for the passage of its suspension axis, so as to be able to unload the two suspension axes by lifting the chute.
  • control lever of an assembly of two symmetrical half-levers between which is then housed a free end of the suspension arm.
  • Fig.1 a vertical section of a device for distributing bulk materials with a rotating chute with variable angle of inclination
  • Fig.2 a horizontal section of the device of Fig. 1;
  • Fig.3 a vertical section similar to that of Fig. 1, illustrating the dismantling of the chute
  • Fig.4 a vertical section showing details of the suspension of the chute of the device of Fig. 1
  • Fig. 5 a vertical section similar to that of Fig. 4, illustrating the disassembly of the chute.
  • the device for distributing bulk materials 10 shown in FIGS. 1 and 2 is more specifically intended to be part of a device for supplying a shaft furnace, such as for example a blast furnace, represented schematically by its upper end 12.
  • a shaft furnace such as for example a blast furnace
  • This device 10 comprises an outer carcass 14, which is connected in leaktight manner to the upper end 12 of the shaft furnace.
  • This outer carcass 14 is provided with a fixed supply sleeve 16, which is substantially coaxial with the vertical axis 18 of the shaft furnace and has come out in leaktight manner from the upper end (not shown) of the carcass outer 14.
  • a suspension rotor 20 is suspended in the outer carcass 14, for example using a large diameter rolling ring (not shown).
  • This suspension rotor 20 comprises a vertical suspension sleeve 24, which surrounds the fixed supply sleeve 16 and is provided with a horizontal collar 26 at its lower end. This collar 26 is fitted in a circular opening of a lower screen 28, which separates the interior of the carcass 14 from the interior of the oven.
  • the reference 30 marks a second rotor, also called the control rotor 30.
  • This control rotor 30 surrounds the suspension rotor 20 and is suspended in the outer carcass 14, for example using a rolling ring of large diameter (not shown), so as to have its axis of rotation substantially coaxial with the axis of rotation of the suspension rotor 20.
  • the two rotors 20 and 30 are rotated by a drive device (not shown in Fig.).
  • This drive device comprises, in a manner known per se, a first pinion, which meshes with a ring gear of the suspension rotor 20, and a second pinion, which meshes with a ring gear of the control rotor 30.
  • this drive device is capable of rotating the two rotors 20, 30, either with perfectly rotational speeds. synchronized, either with different rotational speeds.
  • the reference 32 identifies a distribution chute for bulk materials discharged through the supply sleeve 16.
  • This chute 32 includes two lateral suspension arms 34, 34 '.
  • the collar 26 On either side of the suspension sleeve 24, the collar 26 is provided with two slots 35, 35 ', through which the free ends of the two suspension arms 34, 34' penetrate inside the external carcass 14
  • the two suspension arms 34, 34 ' are connected to the suspension rotor 20 by means of two suspension pins 36, 36'.
  • the latter are housed in bearings 37, 37 ′, which are arranged on the collar 26 on either side of the suspension sleeve 24, so as to define on the suspension rotor 20 a substantially horizontal pivot axis for chute 32.
  • Two connecting rods 50, 50 ' connect the two cranks 48, 48' symmetrically to two control levers 52, 52 ', each of which has substantially the shape of a square with two arms.
  • the end of one of these arms is connected in an articulated manner to its connecting rod 50, 50', while the end of the other arm is connected using an articulation 54, 54 'to the suspension rotor 20.
  • These articulations 54, 54' define for each control lever 52, 52 'on the suspension rotor 20 a pivot axis substantially coaxial with the pivot axis of the chute 32.
  • the transmission of a pivoting moment of the control levers 52, 52 'on the suspension arms 34, 34' uses a stop-stop system, in which a stop of the lever control 52, 52 'simply takes support on a counter-stop of the suspension arm 34, 34' to transmit the pivoting moment.
  • the stop is for example formed by a drive pivot 56, 56 'carried by the control lever 52, 52', while the abutment is then formed by a guide mortise 58, 58 '.
  • the latter is advantageously arranged in the free end of the suspension arm 34, 34 'and has therein a mouth, so as to be able to introduce the drive pivot 56, 56' into its mortise 58, 58 'by a simple translation of the suspension arm 34, 34 'perpendicular to the drive pivot 56, 56'.
  • Fig. 4 a preferred embodiment of the assembly control lever 52, suspension pin and suspension arm 34.
  • the control lever 52 is formed by an assembly of two symmetrical half-levers 60 ′, 60 ", between which the free end of the arm is housed suspension 34.
  • the latter crosses the light 35, which is arranged in the collar 26 of the suspension rotor 20 and which is flanked by two support flanges 62 ', 62 ".
  • Each support flange 62 ', 62 " is fitted with a socket 64', 64".
  • Said articulation 54 of the lever 52 on the suspension rotor 20 is then formed by mounting a journal 66 'of the half-lever 60' in the socket 64 'of the support flange 62' and a journal 66 "of the half - lever 60 "in the socket 64" of the support flange 62 ".
  • Each of the two pins 66 ′, 66 ′′ is further provided with a central bore 68 ′, 68 ′′, in which one end of the suspension axis 36 bears.
  • the central axis of the axis suspension 36 is substantially coaxial with the central axis of the articulation 54 of the control lever 52.
  • Mechanical stops (not shown) ensure the axial locking of the suspension axis 36. However, after dismantling these mechanical stops, the suspension pin 36 can be easily removed from its housing formed by the two bores 68 ', 68 ".
  • each of the two suspension arms of the chute comprises an oblong hole 70, 70' for the passage of its suspension axis 36, 36 '.
  • This oblong hole 70, 70 ′ is arranged in the extension of the mortise 58, 58 ′, so as to be able to unload the two suspension axes 36, 36 ′ by lifting the chute 32. This is illustrated by a comparison of FIGS. . 4 and 5.
  • the suspension arm 34 is supported on the suspension axis 36 with the upper edge of its oblong hole 70.
  • FIG. 4 the suspension arm 34 is supported on the suspension axis 36 with the upper edge of its oblong hole 70.
  • the chute 32 is in a raised position, in which there is a clearance “J” between the upper edge of the oblong hole 70 and the suspension axis 36, so as to discharge the suspension axis 36.
  • the reference 72 marks in FIG. 4 a mechanical stop which prevents an untimely lifting of the chute 32. In FIG. 5, this mechanical stop 72 is removed.
  • the procedure for dismantling the chute is illustrated in Fig. 3.
  • the reference 100 locates a device for handling the chute 32 which is suspended from a cable 102 of a lifting device.
  • This handling device 100 is coupled to the chute 32 through a dismantling opening 104, which is arranged in the upper end 12 of the shaft furnace.
  • the chute 32 is slightly raised, in order to bring the two suspension arms 34, 34 ′ by a translation of the two suspension axes 36, 36 ′ into the position shown in FIG. 5. In this position, we now know how to easily remove the two suspension shafts 36, 36 'from their respective housings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Chutes (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Forging (AREA)
  • Polarising Elements (AREA)

Abstract

A device for distributing materials in bulk includes a suspension rotor and a chute located below the suspension rotor. The chute is provided with two lateral suspension arms which are connected to the suspension rotor. A driving mechanism produces a pivoting torque capable of pivoting the chute, while a cylindrical suspension pin is associated with each suspension arm for pivotably connecting it to the suspension rotor. A control lever is connected to the suspension rotor, the driving mechanism being connected to the control lever so as to transmit to the latter the pivoting torque. A stop on the control lever and a counterstop on a suspension arm engage with each other to transmit the pivoting torque to the suspension arm. The stop and the counterstop are disengagable by a translation movement of the two suspension arms after withdrawal of the cylindrical suspension pins for removal of the chute.

Description

Dispositif de répartition de matières en vrac avec goulotte rotative à angle d'inclinaison variable Bulk material distribution device with rotating chute with variable tilt angle
La présente invention concerne un dispositif de répartition de matières en vrac avec goulotte rotative à angle d'inclinaison variable. Elle concerne plus particulièrement un tel dispositif comprenant un rotor de suspension, une goulotte munie de deux bras de suspension, dont chacun est connecté au rotor de suspension à l'aide d'un axe de suspension, de façon à définir sur le rotor de suspension un axe de pivotement pour la goulotte, et un mécanisme d'entraînement pour produire un moment de pivotement apte à pivoter la goulotte autour de son axe de pivotement.The present invention relates to a device for distributing bulk materials with a rotary chute with variable angle of inclination. It relates more particularly to such a device comprising a suspension rotor, a chute provided with two suspension arms, each of which is connected to the suspension rotor by means of a suspension axis, so as to define on the suspension rotor a pivot axis for the chute, and a drive mechanism for producing a pivoting moment capable of pivoting the chute around its pivot axis.
De tels dispositifs de répartition de matières en vrac sont par exemple uti- lises dans des installations de chargement de fours à cuve, notamment de hauts fourneaux, où la goulotte rotative a angle d'inclinaison variable assure la distribution de la charge à l'intérieur du four à cuve. Il sera apprécié que dans un tel dispositif la goulotte est un élément d'usure, qui doit être remplacé de temps en temps. D'où la nécessité de suspendre la goulotte de manière facilement démontable dans son rotor de suspension, tout en assurant une transmission fiable d'un important moment de pivotement sur la goulotte.Such devices for distributing bulk materials are for example used in tank furnace loading installations, in particular blast furnaces, where the rotary chute with variable inclination angle distributes the load inside. from the shaft oven. It will be appreciated that in such a device the chute is a wear element, which must be replaced from time to time. Hence the need to suspend the chute easily removable in its suspension rotor, while ensuring reliable transmission of a large pivoting moment on the chute.
Des dispositifs de répartition de matières en vrac avec goulotte rotative à angle d'inclinaison variable sont par exemple décrits dans les brevets US 3,814,403, US 5,022,806 et la demande de brevet DE 3342572. La goulotte du dispositif décrit dans le brevet US 3,814,403 est munie de tourillons de suspension latéraux. D'un côté elle comprend deux tourillons de suspension espacés, qui sont reçus dans deux logements séparés d'une bride de suspension entraînée en rotation par le mécanisme de pivotement, de façon à ce que cette bride de suspension puisse transmettre le moment de pivote- ment à la goulotte. Du côté opposé elle comprend un tourillon de suspension unique qui peut tourner dans un logement d'une bride fixe. La fixation des tourillons dans les deux brides se fait à l'aide de clavettes transversales.Devices for distributing bulk materials with a rotary chute with variable angle of inclination are for example described in US Patents 3,814,403, US 5,022,806 and patent application DE 3342572. The chute of the device described in US Patent 3,814,403 is provided with lateral suspension pins. On one side it comprises two spaced suspension pins, which are received in two separate housings of a suspension flange rotated by the pivoting mechanism, so that this suspension flange can transmit the moment of pivoting- lie at the chute. On the opposite side it includes a single suspension journal which can rotate in a housing with a fixed flange. The trunnions are fixed in the two flanges using transverse keys.
La goulotte du dispositif décrit dans le brevet US 5,022,806 est également munie de tourillons de suspension latéraux. D'un côté elle comprend deux tourillons de suspension espacés, qui sont reçus dans un logement d'une bride de suspension entraînée en rotation par le mécanisme de pivotement, de façon à ce que cette bride de suspension puisse transmettre le moment de pivote- ment à la goulotte. Du côté opposé elle comprend un tourillon unique qui est reçu dans un logement d'une bride libre de tourner sur un pivot.The chute of the device described in US Pat. No. 5,022,806 is also fitted with lateral suspension pins. On one side it includes two spaced suspension pins, which are received in a housing of a suspension flange rotated by the pivoting mechanism, so that this suspension flange can transmit the pivoting moment at the chute. On the opposite side it comprises a single pin which is received in a housing with a flange free to rotate on a pivot.
La goulotte du dispositif décrit dans la demande de brevet DE 3342572 est munie de deux bras de suspension de forme spéciale. Chacun de ces bras de suspension est reçu dans un logement d'une bride de suspension entraînée en rotation par le mécanisme de pivotement. La forme du bras de suspension assure son blocage le logement de la bride de suspension tout en permettant une extraction aisé de la goulotte après soulèvement de celle-ci. Les deux brides de suspension transmettent le moment de pivotement à la goulotte.The chute of the device described in patent application DE 3342572 is provided with two specially shaped suspension arms. Each of these suspension arms is received in a housing of a suspension flange rotated by the pivoting mechanism. The shape of the suspension arm ensures its blocking the housing of the suspension flange while allowing easy extraction of the chute after lifting it. The two suspension flanges transmit the pivoting moment to the chute.
Un objet de la présente invention est de proposer un dispositif de réparti- tion de matières en vrac muni d'une suspension de la goulotte plus simple et moins encombrante, permettant néanmoins de transmettre d'importants moments de pivotement à la goulotte, tout en assurant un démontage et montage aisés de la goulotte. Conformément à l'invention, cet objectif est atteint par un dispositif selon la revendication 1. Un dispositif de répartition de matières en vrac selon l'invention comprend un rotor de suspension ainsi qu'une goulotte munie de deux bras de suspension. Chaque bras de suspension est connecté au rotor de suspension à l'aide d'un axe de suspension, de façon à définir sur le rotor de suspension un axe de pivotement pour la goulotte. Le dispositif comprend en outre un mécanisme d'entraînement pour produire un moment de pivotement apte à pivoter la goulotte autour de son axe de pivotement. Un levier de commande est connecté à l'aide d'une articulation au rotor de suspension. Le mécanisme d'entraînement est connecté à ce levier de commande de façon à transmettre à ce dernier le moment de pivotement. Pour transmettre ce moment de pivote- ment à un bras de suspension, le levier de commande est équipé d'une butée qui prend appui sur contrebutee aménagée sur le bras de suspension respectif. Il sera apprécié que ce dispositif se distingue par une suspension de la goulotte très simple et très compacte, qui permet de transmettre d'importants moments de pivotement à la goulotte, tout en assurant un démontage et montage aisés de la goulotte. La transmission du moment de pivotement à la goulotte pourrait se faire à travers un seul des deux bras de suspension. Une transmission symétrique du moment de pivotement aux deux bras de suspension de la goulotte est cependant plus avantageuse. A cette fin un levier de commande est associé à chacun des deux bras de suspension et connecté à l'aide d'une articulation au rotor de suspension. Le mécanisme d'entraînement est alors connecté aux deux leviers de commande de façon à transmettre le moment de pivotement symétriquement à ceux-ci. Pour transmettre dans ce dispositif le moment de pivotement aux deux bras de suspension de la goulotte, une butée sur chacun deux leviers de commande coopère avec une contrebutee sur le bras de suspension auquel le levier de commande respectif est associé.An object of the present invention is to provide a device for distributing bulk materials provided with a simpler and less bulky suspension of the chute, nevertheless making it possible to transmit significant pivoting moments to the chute, while ensuring easy disassembly and assembly of the chute. According to the invention, this objective is achieved by a device according to claim 1. A device for distributing bulk materials according to the invention comprises a suspension rotor as well as a chute provided with two suspension arms. Each suspension arm is connected to the suspension rotor by means of a suspension axis, so as to define on the suspension rotor a pivot axis for the chute. The device further comprises a drive mechanism for producing a pivoting moment capable of pivoting the chute around its pivot axis. A control lever is connected by means of a joint to the suspension rotor. The drive mechanism is connected to this control lever so as to transmit the pivoting moment to the latter. To transmit this moment of pivoting to a suspension arm, the control lever is equipped with a stop which bears on a counter-link arranged on the respective suspension arm. It will be appreciated that this device is distinguished by a very simple and very compact suspension of the chute, which allows significant pivoting moments to be transmitted to the chute, while ensuring easy disassembly and assembly of the chute. The transmission of the pivoting moment to the chute could be done through only one of the two suspension arms. A symmetrical transmission of the pivoting moment to the two suspension arms of the chute is however more advantageous. To this end, a control lever is associated with each of the two suspension arms and connected by means of an articulation to the suspension rotor. The drive mechanism is then connected to the two control levers so as to transmit the pivoting moment symmetrically to them. To transmit the pivoting moment in this device to the two suspension arms of the chute, a stop on each two control levers cooperates with a counter-stop on the suspension arm with which the respective control lever is associated.
On peut bien entendu concevoir différents mécanismes d'entraînement pour transmettre au(x) levier(s) de commande un moment de pivotement. Dans une exécution préférentielle, ce mécanisme d'entraînement comprend un rotor de commande à axe de rotation coaxial au rotor de suspension, ainsi qu'une transmission angulaire portée par le rotor de suspension. L'arbre d'entrée de cette transmission angulaire est muni d'un pignon qui s'engrène avec une couronne dentée portée par le rotor de commande. Son arbre de sortie est parallèle à l'axe de pivotement de la goulotte et est entraîné en rotation lorsque l'arbre d'entré est entraîné en rotation par le rotor de commande. Un méca- nisme bielle-manivelle connecte l'arbre de sortie au(x) levier(s) de commande. Il sera noté qu'une rotation du pignon d'entrée de la transmission angulaire a lieu s'il y a une différence de vitesse angulaire entre le rotor de suspension et le rotor de commande. Cette rotation de l'arbre d'entrée produit une rotation de l'arbre de sortie de la transmission angulaire, qui est transformée par le méca- nisme bielle-manivelle en un pivotement du (des) levier(s) de commande autour de son (leur) articulation(s) sur le rotor de suspension. On peut également concevoir différentes exécutions de la butée et de la contrebutee. Dans une exécution préférentielle, la butée est par exemple formée par un pivot d'entraînement porté par le levier de commande. La contrebutee est alors avantageusement formée par une mortaise de guidage aménagée dans ledit bras de suspension de la goulotte. Cette mortaise de guidage présente avantageusement une embouchure dans l'extrémité libre du bras, de façon à pouvoir y introduire le pivot d'entraînement par une translation du bras de suspension perpendiculairement au pivot d'entraînement.It is of course possible to design different drive mechanisms for transmitting a pivoting moment to the control lever (s). In a preferred embodiment, this drive mechanism comprises a control rotor with an axis of rotation coaxial with the suspension rotor, as well as an angular transmission carried by the suspension rotor. The input shaft of this angular transmission is provided with a pinion which meshes with a ring gear carried by the control rotor. Its output shaft is parallel to the pivot axis of the chute and is rotated when the input shaft is rotated by the control rotor. A connecting rod-crank mechanism connects the output shaft to the control lever (s). It will be noted that a rotation of the input gear of the angular transmission takes place if there is a difference in angular speed between the suspension rotor and the control rotor. This rotation of the input shaft produces a rotation of the output shaft of the angular transmission, which is transformed by the rod-crank mechanism into a pivoting of the control lever (s) around its (their) joint (s) on the suspension rotor. It is also possible to conceive of different executions of the stop and the buttress. In a preferred embodiment, the stop is for example formed by a drive pivot carried by the control lever. The abutment is then advantageously formed by a guide mortise arranged in said suspension arm of the chute. This guide mortise advantageously has a mouth in the free end of the arm, so that the drive pivot can be introduced therein by a translation of the suspension arm perpendicular to the drive pivot.
Chacun des deux axes de suspension est de préférence monté de façon facilement démontable dans un logement du rotor de suspension. Afin de faciliter le montage/démontage des axes de suspension, chacun des deux bras de suspension de la goulotte comprend avantageusement un trou oblong pour le passage de son axe de suspension, de façon à pouvoir décharger les deux axes de suspensions par un soulèvement de la goulotte. Afin d'optimiser la transmission du moment de pivotement du levier de commande au bras de suspension, il est avantageux d'avoir l'axe de suspension du bras de suspension et l'articulation du levier de commande sensiblement coaxiaux.Each of the two suspension axes is preferably easily dismounted in a housing of the suspension rotor. In order to facilitate the mounting / dismounting of the suspension axes, each of the two suspension arms of the chute advantageously comprises an oblong hole for the passage of its suspension axis, so as to be able to unload the two suspension axes by lifting the chute. In order to optimize the transmission of the pivoting moment of the control lever to the suspension arm, it is advantageous to have the suspension axis of the suspension arm and the articulation of the control lever substantially coaxial.
Dans le même but il est également avantageux de former le levier de commande d'un assemblage de deux demi-leviers symétriques entre lesquels est alors logée une extrémité libre du bras de suspension.For the same purpose it is also advantageous to form the control lever of an assembly of two symmetrical half-levers between which is then housed a free end of the suspension arm.
Dans une exécution préférentielle, le dispositif comprend une carcasse extérieure, dans laquelle le rotor de suspension est suspendu. Cette carcasse est équipée d'un écran inférieur, qui est muni d'une ouverture circulaire. L'extrémité inférieur du rotor de suspension porte un collet, qui est ajusté dans cette ouverture circulaire. Dans ce collet sont agencées deux lumières pour le passage des deux bras de suspension de la goulotte. Deux brides de support flanquent chacune des lumières pour le support des axes de suspension à leur deux extrémités. D'autres particularités et caractéristiques de l'invention ressortiront de la description détaillée d'un mode de réalisation avantageux, qui est décrit ci- dessous à titre d'illustration, en se référant aux dessins annexés. Ceux-ci montrent:In a preferred embodiment, the device comprises an external carcass, in which the suspension rotor is suspended. This carcass is equipped with a lower screen, which is provided with a circular opening. The lower end of the suspension rotor carries a collar, which is fitted into this circular opening. In this collar are arranged two lights for the passage of the two suspension arms of the chute. Two support flanges flank each of the lights for the support of the suspension pins at their two ends. Other features and characteristics of the invention will emerge from the detailed description of an advantageous embodiment, which is described below. below by way of illustration, with reference to the accompanying drawings. These show:
Fig.1 : une section verticale d'un dispositif de répartition de matières en vrac avec goulotte rotative à angle d'inclinaison variable; Fig.2: une section horizontale du dispositif de la Fig. 1 ;Fig.1: a vertical section of a device for distributing bulk materials with a rotating chute with variable angle of inclination; Fig.2: a horizontal section of the device of Fig. 1;
Fig.3: une section verticale semblable à celle de la Fig. 1 , illustrant le démontage de la goulotte; Fig.4: une section verticale montrant des détails de la suspension de la goulotte du dispositif de la Fig. 1 ; Fig.5: une section verticale semblable à celle de la Fig. 4, illustrant le démontage de la goulotte.Fig.3: a vertical section similar to that of Fig. 1, illustrating the dismantling of the chute; Fig.4: a vertical section showing details of the suspension of the chute of the device of Fig. 1; Fig. 5: a vertical section similar to that of Fig. 4, illustrating the disassembly of the chute.
Le dispositif de répartition de matières en vrac 10 montré sur les Figures 1 et 2 est plus spécialement destiné à faire partie d'un dispositif d'alimentation d'un four à cuve, tel que par exemple un haut fourneau, représenté schémati- quement par son extrémité supérieure 12.The device for distributing bulk materials 10 shown in FIGS. 1 and 2 is more specifically intended to be part of a device for supplying a shaft furnace, such as for example a blast furnace, represented schematically by its upper end 12.
Ce dispositif 10 comprend une carcasse extérieure 14, qui est connectée de façon étanche à l'extrémité supérieure 12 du four à cuve. Cette carcasse extérieure 14 est munie d'un manchon fixe d'alimentation 16, qui est sensible- ment coaxial à l'axe vertical 18 du four à cuve et est sorti de façon étanche de l'extrémité supérieure (non montrée) de la carcasse extérieure 14. Un rotor de suspension 20 est suspendu dans la carcasse extérieure 14, par exemple à l'aide d'un anneau de roulement de grand diamètre (non montré). Ce rotor de suspension 20 comprend un manchon de suspension vertical 24, qui entoure le manchon d'alimentation fixe 16 et est muni d'un collet horizontal 26 à son extrémité inférieure. Ce collet 26 est ajusté dans une ouverture circulaire d'un écran inférieur 28, qui sépare l'intérieur de la carcasse 14 de l'intérieur du four.This device 10 comprises an outer carcass 14, which is connected in leaktight manner to the upper end 12 of the shaft furnace. This outer carcass 14 is provided with a fixed supply sleeve 16, which is substantially coaxial with the vertical axis 18 of the shaft furnace and has come out in leaktight manner from the upper end (not shown) of the carcass outer 14. A suspension rotor 20 is suspended in the outer carcass 14, for example using a large diameter rolling ring (not shown). This suspension rotor 20 comprises a vertical suspension sleeve 24, which surrounds the fixed supply sleeve 16 and is provided with a horizontal collar 26 at its lower end. This collar 26 is fitted in a circular opening of a lower screen 28, which separates the interior of the carcass 14 from the interior of the oven.
Sur la Fig. 1 , la référence 30 repère un deuxième rotor, encore appelé rotor de commande 30. Ce rotor de commande 30 entoure le rotor de suspension 20 et est suspendu dans la carcasse extérieure 14, par exemple à l'aide d'un anneau de roulement de grand diamètre (non montré), de façon à avoir son axe de rotation sensiblement coaxial à l'axe de rotation du rotor de suspension 20. Les deux rotors 20 et 30 sont entraînés en rotation par un dispositif d'entraînement (non montré sur les Fig.). Ce dispositif d'entraînement comprend, de façon connue en soi, un premier pignon, qui s'engrène avec une couronne dentée du rotor de suspension 20, et un deuxième pignon, qui s'engrène avec une couronne dentée du rotor de commande 30. A l'aide de deux moteurs et d'un mécanisme différentiel, qui sont installés en-dehors de la carcasse 14, ce dispositif d'entraînement est apte à entraîner en rotation les deux rotors 20, 30, soit avec des vitesses de rotation parfaitement synchronisées, soit avec des vitesses de rotation différentes.In Fig. 1, the reference 30 marks a second rotor, also called the control rotor 30. This control rotor 30 surrounds the suspension rotor 20 and is suspended in the outer carcass 14, for example using a rolling ring of large diameter (not shown), so as to have its axis of rotation substantially coaxial with the axis of rotation of the suspension rotor 20. The two rotors 20 and 30 are rotated by a drive device (not shown in Fig.). This drive device comprises, in a manner known per se, a first pinion, which meshes with a ring gear of the suspension rotor 20, and a second pinion, which meshes with a ring gear of the control rotor 30. Using two motors and a differential mechanism, which are installed outside the carcass 14, this drive device is capable of rotating the two rotors 20, 30, either with perfectly rotational speeds. synchronized, either with different rotational speeds.
La référence 32 repère une goulotte de distribution pour des matières en vrac déversées à travers le manchon d'alimentation 16. Cette goulotte 32 comprend deux bras latéraux de suspension 34, 34'. De part et d'autre du manchon de suspension 24, le collet 26 est muni de deux lumières 35, 35', à travers lesquelles les extrémités libres des deux bras de suspension 34, 34' pénètrent à l'intérieur de la carcasse extérieure 14. Au-dessus du collet 26, les deux bras de suspension 34, 34' sont connectées au rotor de suspension 20 à l'aide de deux axes de suspension 36, 36'. Ces derniers sont logés dans des paliers 37, 37', qui sont aménagés sur le collet 26 de part et d'autre du man- chon de suspension 24, de façon à définir sur le rotor de suspension 20 un axe de pivotement sensiblement horizontal pour la goulotte 32.The reference 32 identifies a distribution chute for bulk materials discharged through the supply sleeve 16. This chute 32 includes two lateral suspension arms 34, 34 '. On either side of the suspension sleeve 24, the collar 26 is provided with two slots 35, 35 ', through which the free ends of the two suspension arms 34, 34' penetrate inside the external carcass 14 Above the collar 26, the two suspension arms 34, 34 'are connected to the suspension rotor 20 by means of two suspension pins 36, 36'. The latter are housed in bearings 37, 37 ′, which are arranged on the collar 26 on either side of the suspension sleeve 24, so as to define on the suspension rotor 20 a substantially horizontal pivot axis for chute 32.
La référence 38 repère de façon globale une transmission angulaire portée par le collet 26 du rotor de suspension 20. Cette transmission angulaire 38 comprend un arbre d'entrée vertical 40, qui est parallèle à l'axe de rotation des deux rotors 20, 30 et est équipé d'un pignon 42 qui s'engrène avec une couronne dentée 44 du rotor de commande 30. Elle comprend en outre un arbre de sortie horizontal 46, qui est parallèle à l'axe de pivotement de la goulotte 32 et comprend deux extrémités libres, dont chacune est équipée d'une manivelle 48, 48'. Un système d'engrenage interconnecte l'arbre d'entrée 40 et l'arbre de sortie 46, de façon à transformer une rotation de l'arbre d'entrée vertical 40 en une rotation de l'arbre de sortie horizontal 46. Deux bielles 50, 50' connectent les deux manivelles 48, 48' symétriquement à deux leviers de commande 52, 52', dont chacun a sensiblement la forme d'une équerre à deux bras. Pour chacun de ces deux leviers de commande 52, 52', l'extrémité d'un de ces bras est connectée de façon articulée à sa bielle 50, 50', tandis l'extrémité de l'autre bras est connectée à l'aide d'une articulation 54, 54' au rotor de suspension 20. Ces articulations 54, 54' définissent pour chaque levier de commande 52, 52' sur le rotor de suspension 20 un axe de pivotement sensiblement coaxial à l'axe de pivotement de la goulotte 32.The reference 38 generally identifies an angular transmission carried by the collar 26 of the suspension rotor 20. This angular transmission 38 comprises a vertical input shaft 40, which is parallel to the axis of rotation of the two rotors 20, 30 and is equipped with a pinion 42 which meshes with a ring gear 44 of the control rotor 30. It further comprises a horizontal output shaft 46, which is parallel to the pivot axis of the chute 32 and has two ends free, each of which is equipped with a crank 48, 48 '. A gear system interconnects the input shaft 40 and the output shaft 46, so as to transform a rotation of the vertical input shaft 40 into a rotation of the horizontal output shaft 46. Two connecting rods 50, 50 'connect the two cranks 48, 48' symmetrically to two control levers 52, 52 ', each of which has substantially the shape of a square with two arms. For each of these two control levers 52, 52 ', the end of one of these arms is connected in an articulated manner to its connecting rod 50, 50', while the end of the other arm is connected using an articulation 54, 54 'to the suspension rotor 20. These articulations 54, 54' define for each control lever 52, 52 'on the suspension rotor 20 a pivot axis substantially coaxial with the pivot axis of the chute 32.
On a vu plus haut qu'une rotation du pignon d'entrée 42 de la transmission angulaire 38 produit une rotation des manivelles 48, 48'. Celle-ci est transformée par les bielles 50, 50' en un pivotement symétrique des deux leviers de commande 52, 52' autour de leur articulations 54, 54'. Or, une rotation du pignon d'entrée 42 a lieu s'il y a une différence de vitesse angulaire entre le rotor de suspension 20 et le rotor de commande 30. En d'autres termes, pour faire pivoter les deux leviers de commande 52, 52' de façon symétrique autour de leur articulations 54, 54', il suffit d'entraîner le rotor de commande 30 à une vitesse angulaire différente du rotor de suspension 20.We have seen above that a rotation of the input pinion 42 of the angular transmission 38 produces a rotation of the cranks 48, 48 '. This is transformed by the connecting rods 50, 50 'into a symmetrical pivoting of the two control levers 52, 52' around their articulations 54, 54 '. However, a rotation of the input pinion 42 takes place if there is a difference in angular speed between the suspension rotor 20 and the control rotor 30. In other words, to rotate the two control levers 52 , 52 ′ symmetrically around their articulations 54, 54 ′, it suffices to drive the control rotor 30 at a different angular speed from the suspension rotor 20.
Selon un aspect important de la présente invention, la transmission d'un moment de pivotement des leviers de commande 52, 52' sur les bras de suspensions 34, 34' fait appel à un système butée-contrebutée, dans lequel une butée du levier de commande 52, 52' prend simplement appui sur une contre- butée du bras de suspension 34, 34' pour transmettre le moment de pivotement. La butée est par exemple formée par un pivot d'entraînement 56, 56' porté par le levier de commande 52, 52', tandis que la contrebutee est alors formée par une mortaise de guidage 58, 58'. Cette dernière est avantageusement aménagée dans l'extrémité libre du bras de suspension 34, 34' et présente dans celle-ci une embouchure, de façon à pouvoir introduire le pivot d'entraînement 56, 56' dans sa mortaise 58, 58' par une simple translation du bras de suspension 34, 34' perpendiculairement au pivot d'entraînement 56, 56'.According to an important aspect of the present invention, the transmission of a pivoting moment of the control levers 52, 52 'on the suspension arms 34, 34' uses a stop-stop system, in which a stop of the lever control 52, 52 'simply takes support on a counter-stop of the suspension arm 34, 34' to transmit the pivoting moment. The stop is for example formed by a drive pivot 56, 56 'carried by the control lever 52, 52', while the abutment is then formed by a guide mortise 58, 58 '. The latter is advantageously arranged in the free end of the suspension arm 34, 34 'and has therein a mouth, so as to be able to introduce the drive pivot 56, 56' into its mortise 58, 58 'by a simple translation of the suspension arm 34, 34 'perpendicular to the drive pivot 56, 56'.
Sur la Fig. 4 est montrée une exécution préférentielle de l'assemblage le- vier de commande 52, axe de suspension et bras de suspension 34. On voit que le levier de commande 52 est formé d'un assemblage de deux demi-leviers symétriques 60', 60", entre lesquels est logée l'extrémité libre du bras de suspension 34. Cette dernière traverse la lumière 35, qui est aménagée dans le collet 26 du rotor de suspension 20 et qui est flanquée de deux brides de support 62', 62". Chaque bride de support 62', 62" est garnie d'une douille 64', 64". Ladite articulation 54 du levier 52 sur le rotor de suspension 20 est alors formée par montage d'un tourillon 66' du demi-levier 60' dans la douille 64' de la bride de support 62' et d'un tourillon 66" du demi-levier 60" dans la douille 64" de la bride de support 62". Chacun des deux tourillons 66', 66" est en outre muni d'un alésage central 68', 68", dans lequel prend appui une extrémité de l'axe de suspension 36. Il sera noté que l'axe central de l'axe de suspension 36 est sensiblement coaxial à l'axe central de l'articulation 54 du levier de commande 52. Des arrêts mécaniques (non montrés) assurent le blocage axial de l'axe de suspension 36. Cependant, après démontage de ces arrêts mécaniques, l'axe de suspension 36 peut être facilement retiré de son logement formé par les deux alésages 68', 68".In Fig. 4 is shown a preferred embodiment of the assembly control lever 52, suspension pin and suspension arm 34. It can be seen that the control lever 52 is formed by an assembly of two symmetrical half-levers 60 ′, 60 ", between which the free end of the arm is housed suspension 34. The latter crosses the light 35, which is arranged in the collar 26 of the suspension rotor 20 and which is flanked by two support flanges 62 ', 62 ". Each support flange 62 ', 62 "is fitted with a socket 64', 64". Said articulation 54 of the lever 52 on the suspension rotor 20 is then formed by mounting a journal 66 'of the half-lever 60' in the socket 64 'of the support flange 62' and a journal 66 "of the half - lever 60 "in the socket 64" of the support flange 62 ". Each of the two pins 66 ′, 66 ″ is further provided with a central bore 68 ′, 68 ″, in which one end of the suspension axis 36 bears. It will be noted that the central axis of the axis suspension 36 is substantially coaxial with the central axis of the articulation 54 of the control lever 52. Mechanical stops (not shown) ensure the axial locking of the suspension axis 36. However, after dismantling these mechanical stops, the suspension pin 36 can be easily removed from its housing formed by the two bores 68 ', 68 ".
Afin de faciliter le montage et démontage des axes de suspensions 36, 36', chacun des deux bras de suspension de la goulotte comprend un trou oblong 70, 70' pour le passage de son axe de suspension 36, 36'. Ce trou oblong 70, 70' est agencé dans le prolongement de la mortaise 58, 58', de façon à pouvoir décharger les deux axes de suspensions 36, 36' par un soulèvement de la goulotte 32. Ceci est illustré par un comparaison des Fig. 4 et 5. Dans la Fig. 4, le bras de suspension 34 est en appui sur l'axe de suspen- sion 36 avec le bord supérieur de son trou oblong 70. Dans la Fig. 5, la goulotte 32 est dans une position soulevée, dans laquelle il existe un jeu « J » entre le bord supérieur du trou oblong 70 et l'axe de suspension 36, de sorte à décharger l'axe de suspension 36. Reste à noter que la référence 72 repère dans la Fig. 4 un arrêt mécanique qui évite un soulèvement intempestif de la goulotte 32. Dans la Fig. 5, cet arrêt mécanique 72 est enlevé.In order to facilitate the mounting and dismounting of the suspension axes 36, 36 ', each of the two suspension arms of the chute comprises an oblong hole 70, 70' for the passage of its suspension axis 36, 36 '. This oblong hole 70, 70 ′ is arranged in the extension of the mortise 58, 58 ′, so as to be able to unload the two suspension axes 36, 36 ′ by lifting the chute 32. This is illustrated by a comparison of FIGS. . 4 and 5. In Fig. 4, the suspension arm 34 is supported on the suspension axis 36 with the upper edge of its oblong hole 70. In FIG. 5, the chute 32 is in a raised position, in which there is a clearance “J” between the upper edge of the oblong hole 70 and the suspension axis 36, so as to discharge the suspension axis 36. Remains to be noted that the reference 72 marks in FIG. 4 a mechanical stop which prevents an untimely lifting of the chute 32. In FIG. 5, this mechanical stop 72 is removed.
La procédure de démontage de la goulotte est illustrée par la Fig. 3. La référence 100 repère un dispositif de manipulation de la goulotte 32 qui est suspendu à un câble 102 d'un engin de levage. Ce dispositif de manipulation 100 est accouplé à la goulotte 32 à travers une ouverture de démontage 104, qui est aménagée dans l'extrémité supérieure 12 du four à cuve. Dans une première étape la goulotte 32 est légèrement soulevée, afin d'amener par une translation des deux bras de suspension 34, 34' les deux axes de suspension 36, 36' dans la position montrée dans la Fig. 5. Dans cette position on sait maintenant facilement retirer les deux axes de suspension 36, 36' de leur logement respectif. Ensuite on laisse descendre la goulotte 32 afin de dégager par une translation des deux bras de suspension 34, 34' les deux pivots d'entraînement 56, 56' de leur mortaise de guidage 58, 58' respective. On sait alors extraire la goulotte 32 latéralement à travers l'ouverture de démontage 104. Un contrepoids 106 du dispositif de manipulation 100 maintient la goulotte 32 sensiblement parallèle à elle même pendant toute l'opération d'extraction. L'opération de montage de la goulotte s'effectue de façon inverse. The procedure for dismantling the chute is illustrated in Fig. 3. The reference 100 locates a device for handling the chute 32 which is suspended from a cable 102 of a lifting device. This handling device 100 is coupled to the chute 32 through a dismantling opening 104, which is arranged in the upper end 12 of the shaft furnace. In a first step, the chute 32 is slightly raised, in order to bring the two suspension arms 34, 34 ′ by a translation of the two suspension axes 36, 36 ′ into the position shown in FIG. 5. In this position, we now know how to easily remove the two suspension shafts 36, 36 'from their respective housings. Then the chute 32 is allowed to descend in order to disengage by a translation of the two suspension arms 34, 34 'the two drive pivots 56, 56' from their respective guide mortise 58, 58 '. It is then known to extract the chute 32 laterally through the disassembly opening 104. A counterweight 106 of the handling device 100 keeps the chute 32 substantially parallel to itself during the entire extraction operation. The installation of the chute is carried out in reverse.

Claims

Revendications claims
1. Dispositif de répartition de matières en vrac comprenant: un rotor de suspension (20); une goulotte (32) munie de deux bras de suspension (34, 34'), dont chacun est connecté audit rotor de suspension (20) à l'aide d'un axe de suspension (36, 36'), de façon à définir sur le rotor de suspension (20) un axe de pivotement pour la goulotte (32); et un mécanisme d'entraînement pour produire un moment de pivotement apte à pivoter la goulotte (32); caractérisé par un levier de commande (52, 52') connecté à l'aide d'une articulation (54, 54') audit rotor de suspension (20), ledit mécanisme d'entraînement étant connecté audit levier de commande (52, 52') de façon à transmettre à ce dernier ledit moment de pivotement; et une butée (56, 56') sur ledit levier de commande (52, 52') et une contrebu- tée (58, 58") sur un bras de suspension (34, 34'), ladite butée (56, 56') prenant appui sur ladite contrebutee (58, 58') de façon à transmettre ledit moment de pivotement audit bras de suspension (34, 34').1. A device for distributing bulk materials comprising: a suspension rotor (20); a chute (32) provided with two suspension arms (34, 34 '), each of which is connected to said suspension rotor (20) by means of a suspension axis (36, 36'), so as to define on the suspension rotor (20) a pivot axis for the chute (32); and a drive mechanism for producing a pivoting moment adapted to pivot the chute (32); characterized by a control lever (52, 52 ') connected by means of a hinge (54, 54') to said suspension rotor (20), said drive mechanism being connected to said control lever (52, 52 ') so as to transmit said pivoting moment to the latter; and a stop (56, 56 ') on said control lever (52, 52') and a buttress (58, 58 ") on a suspension arm (34, 34 '), said stop (56, 56' ) bearing on said abutment (58, 58 ') so as to transmit said pivoting moment to said suspension arm (34, 34').
2. Dispositif selon la revendication 1 , caractérisé en ce qu'un levier de commande (52, 52') est associé à chacun des deux bras de suspension (34, 34') et connecté à l'aide d'une articulation audit rotor de suspension (20); en ce que ledit mécanisme d'entraînement est connecté aux deux leviers de commande (52, 52') de façon à transmettre ledit moment de pivotement symétriquement à ceux-ci; et en ce qu'une butée (56, 56') sur chacun deux leviers de commande (52, 52') coopère avec une contrebutee (58, 58') sur le bras de suspension (34, 34') auquel le levier de commande (52, 52') respectif est associé pour transmet- tre ledit moment de pivotement aux deux bras de suspension (34, 34') de la goulotte (32).2. Device according to claim 1, characterized in that a control lever (52, 52 ') is associated with each of the two suspension arms (34, 34') and connected by means of an articulation to said rotor suspension (20); in that said drive mechanism is connected to the two control levers (52, 52 ') so as to transmit said pivoting moment symmetrically thereto; and in that a stop (56, 56 ') on each two control levers (52, 52') cooperates with a counter-stop (58, 58 ') on the suspension arm (34, 34') to which the lever respective command (52, 52 ') is associated to transmit be said pivoting moment at the two suspension arms (34, 34 ') of the chute (32).
3. Dispositif selon la revendication 2, caractérisé en ce que ledit mécanisme d'entraînement comprend: un rotor de commande (30) à axe de rotation coaxial audit rotor de suspension (20), ledit rotor de commande (30) étant équipé d'une couronne dentée (44); une transmission angulaire (38) qui est portée par ledit rotor de suspension (20) et qui comprend: un arbre d'entrée (40), qui est muni d'un pignon (42) qui s'engrène avec la couronne dentée (44) dudit rotor de commande (30); et un arbre de sortie (46), qui est parallèle à l'axe de pivotement de la goulotte (32) et qui est entraîné en rotation lorsque ledit arbre d'entré (40) est entraîné en rotation par la couronne dentée (44) dudit rotor de commande (30); un mécanisme bielle-manivelle (48, 50, 48', 50') connectant ledit arbre de sortie (46) aux deux leviers de commande (52, 52').3. Device according to claim 2, characterized in that said drive mechanism comprises: a control rotor (30) with an axis of rotation coaxial with said suspension rotor (20), said control rotor (30) being equipped with a ring gear (44); an angular transmission (38) which is carried by said suspension rotor (20) and which comprises: an input shaft (40), which is provided with a pinion (42) which meshes with the toothed crown (44 ) said control rotor (30); and an output shaft (46), which is parallel to the pivot axis of the chute (32) and which is rotated when said input shaft (40) is rotated by the ring gear (44) said control rotor (30); a connecting rod-crank mechanism (48, 50, 48 ', 50') connecting said output shaft (46) to the two control levers (52, 52 ').
4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que: ladite butée est formée par un pivot d'entraînement (56, 56') porté par ledit levier de commande (52, 52'); et ladite contrebutee est formée par une mortaise de guidage (58, 58') aménagée dans ledit bras de suspension (34, 34') de la goulotte (32).4. Device according to any one of claims 1 to 3, characterized in that: said stop is formed by a drive pivot (56, 56 ') carried by said control lever (52, 52'); and said abutment is formed by a guide mortise (58, 58 ') arranged in said suspension arm (34, 34') of the chute (32).
5. Dispositif selon la revendication 4, caractérisé en ce que: ledit bras de suspension (34, 34') de la goulotte (32) comprend un bras de levier avec une extrémité libre; et ladite mortaise de guidage (58, 58') présente une embouchure dans ladite extrémité libre, de façon à pouvoir y introduire ledit pivot d'entraînement (56, 56') par une translation du bras de suspension (34, 34') perpendiculairement audit pivot d'entraînement (56, 56').5. Device according to claim 4, characterized in that: said suspension arm (34, 34 ') of the chute (32) comprises a lever arm with a free end; and said guide mortise (58, 58 ') has a mouth in said free end, so that said drive pivot (56, 56') can be introduced therein by a translation of the suspension arm (34, 34 ') perpendicularly to said drive pivot (56, 56 ').
6. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que chacun des deux axes de suspension (36, 36') est monté de façon démontable dans un logement du rotor de suspension (20). 6. Device according to any one of claims 1 to 6, characterized in that each of the two suspension axes (36, 36 ') is removably mounted in a housing of the suspension rotor (20).
7. Dispositif selon la revendication 6, caractérisé en ce que chacun des deux bras de suspension (34, 34') de la goulotte (32) comprend un trou oblong (70, 70') pour le passage de son axe de suspension (36, 36'), de façon à pouvoir décharger les deux axes de suspensions (36, 36') par un soulèvement de la goulotte (32). 7. Device according to claim 6, characterized in that each of the two suspension arms (34, 34 ') of the chute (32) comprises an oblong hole (70, 70') for the passage of its suspension axis (36 , 36 '), so as to be able to discharge the two suspension axes (36, 36') by lifting the chute (32).
8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'axe de suspension (36, 36') du bras de suspension (34, 34') et l'articulation (54, 54') du levier de commande (52, 52') sont sensiblement coaxiaux.8. Device according to any one of claims 1 to 7, characterized in that the suspension axis (36, 36 ') of the suspension arm (34, 34') and the articulation (54, 54 ') of the control lever (52, 52 ') are substantially coaxial.
9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le levier de commande (52, 52') est formé d'un assemblage de deux demi-leviers symétriques (60', 60") entre lesquels est logée une extrémité libre du bras de suspension (34, 34').9. Device according to any one of claims 1 to 8, characterized in that the control lever (52, 52 ') is formed by an assembly of two symmetrical half-levers (60', 60 ") between which is housed a free end of the suspension arm (34, 34 ').
10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé par: une carcasse extérieure (14) dans laquelle ledit rotor de suspension (20) est suspendu, ladite carcasse (14) comprenant un écran inférieur (28) muni d'une ouverture circulaire; un collet (26) porté par l'extrémité inférieur dudit rotor de suspension (20), ledit collet (26) étant ajusté dans ladite ouverture circulaire; deux lumières (35, 35') agencées dans ledit collet (26) pour le passage des deux bras de suspension (34, 34') de la goulotte (32); et deux brides de support (62', 62") flanquant chacune desdites lumières (35, 35') pour le support des axes de suspension (36, 36') à chacune de leur extrémités. 10. Device according to any one of claims 1 to 9, characterized by: an external carcass (14) in which said suspension rotor (20) is suspended, said carcass (14) comprising a lower screen (28) provided with a circular opening; a collar (26) carried by the lower end of said suspension rotor (20), said collar (26) being fitted in said circular opening; two lights (35, 35 ') arranged in said collar (26) for the passage of the two suspension arms (34, 34') of the chute (32); and two support flanges (62 ', 62 ") flanking each of said slots (35, 35') for supporting the suspension pins (36, 36 ') at each of their ends.
EP00958449A 1999-09-03 2000-08-16 Device for distributing bulk materials with rotary chute having a variable angle of inclination Expired - Lifetime EP1218550B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU90433A LU90433B1 (en) 1999-09-03 1999-09-03 Bulk material distribution device with rotating chute - variable tilt angle
LU90433 1999-09-03
PCT/EP2000/007949 WO2001018255A1 (en) 1999-09-03 2000-08-16 Device for distributing bulk materials with rotary chute having a variable angle of inclination

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EP1218550A1 true EP1218550A1 (en) 2002-07-03
EP1218550B1 EP1218550B1 (en) 2003-05-07

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US (1) US6916146B1 (en)
EP (1) EP1218550B1 (en)
CN (1) CN1186463C (en)
AT (1) ATE239803T1 (en)
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US8182190B2 (en) * 2008-03-27 2012-05-22 Ashross, Llc Unloading system and method for continuously moving rapid discharge railcars
LU91480B1 (en) * 2008-09-12 2010-03-15 Wurth Paul Sa Shaft furnace charging device and corresponding distribution chute
RU2477251C1 (en) * 2008-11-24 2013-03-10 Рве Пауэр Акциенгезелльшафт Loose material spreader
LU91565B1 (en) 2009-05-07 2010-11-08 Wurth Paul Sa A shaft furnace charging installation having a drive mechanism for a distribution chute.
CN104034173B (en) * 2009-10-09 2016-03-30 新日铁工程技术株式会社 Charging apparatus
LU91829B1 (en) 2011-06-21 2012-12-24 Wurth Paul Sa Distribution chute for a charging device
CN102296133B (en) * 2011-08-31 2013-02-13 中冶赛迪工程技术股份有限公司 Feeding device for receiving tank of blast furnace
CN102635878B (en) * 2012-05-09 2014-07-02 中信机电制造公司科研设计院 Energy-saving and environment-friendly heating stove
CN103979322B (en) * 2014-05-28 2016-05-11 刘明生 The manufacture method of centrifugal car unloader
LU92494B1 (en) * 2014-07-07 2016-01-08 Wurth Paul Sa DEVICE FOR LOCKING THE CHUTE ON THE ENDS OF THE TRUNKS, IN A TANK OVEN LOADING SYSTEM
KR200481700Y1 (en) * 2014-10-30 2016-11-01 대우조선해양 주식회사 Drilling cutting guider of the offshore structure and drilling cutting disposal module with thw same

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WO2001018255A1 (en) 2001-03-15
AU6995800A (en) 2001-04-10
EP1218550B1 (en) 2003-05-07
DE60002595T2 (en) 2004-03-18
BR0012536A (en) 2002-04-16
LU90433B1 (en) 2001-03-05
DE60002595D1 (en) 2003-06-12
CN1186463C (en) 2005-01-26
CZ297757B6 (en) 2007-03-21
CZ2002766A3 (en) 2002-08-14
YU9102A (en) 2004-11-25
US6916146B1 (en) 2005-07-12
TW434383B (en) 2001-05-16
ATE239803T1 (en) 2003-05-15
CN1361831A (en) 2002-07-31

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