EP0272415B1 - Dispositif pour la fabrication du béton dans un tunnel - Google Patents

Dispositif pour la fabrication du béton dans un tunnel Download PDF

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Publication number
EP0272415B1
EP0272415B1 EP87116304A EP87116304A EP0272415B1 EP 0272415 B1 EP0272415 B1 EP 0272415B1 EP 87116304 A EP87116304 A EP 87116304A EP 87116304 A EP87116304 A EP 87116304A EP 0272415 B1 EP0272415 B1 EP 0272415B1
Authority
EP
European Patent Office
Prior art keywords
mixer
housing
conveyor belt
undercarriage
binding agent
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.)
Expired - Lifetime
Application number
EP87116304A
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German (de)
English (en)
Other versions
EP0272415A3 (en
EP0272415A2 (fr
Inventor
Rudolf Riker
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.)
Stetter GmbH
Original Assignee
Stetter GmbH
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 Stetter GmbH filed Critical Stetter GmbH
Priority to AT87116304T priority Critical patent/ATE62853T1/de
Publication of EP0272415A2 publication Critical patent/EP0272415A2/fr
Publication of EP0272415A3 publication Critical patent/EP0272415A3/de
Application granted granted Critical
Publication of EP0272415B1 publication Critical patent/EP0272415B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0868—Mixing apparatus in which a mixing container is hoisted along an inclined or vertical track during mixing to discharge at a higher level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C9/00—General arrangement or layout of plant
    • B28C9/04—General arrangement or layout of plant the plant being mobile, e.g. mounted on a carriage or a set of carriages
    • B28C9/0472—General arrangement or layout of plant the plant being mobile, e.g. mounted on a carriage or a set of carriages provided with two or more carriages for storing the ingredients or for the mixing device, e.g. transportable on rails

Definitions

  • the invention relates to a device for the production of concrete with the features of the preamble of claim 1.
  • Such a device is known from BE-A-691528.
  • This device uses a so-called elevator mixer, which consists of a mixing container, mixer and drive motor and can be moved along a rising rail path from a low position to a delivery position at an elevated level, in which a concrete transport vehicle can pass. In the lower position, the mixer is loaded from a weighing container arranged above, in which the mixing components e.g. be weighed additively.
  • the elevator mixer saves an additional lifting device and allows mixing during the lift process. It is disadvantageous that the device has a large overall height, which is determined by the mixer located in its low position, the weighing container with weighing device arranged above it, and the conveying devices for additives and binders opening above the weighing container. This device cannot therefore be used for concreting a tunnel because the tunnel cross-section does not allow for the large overall height of the device.
  • US-A-1,075,350 shows a device in which additives and binders are stored undosed in consecutive storage containers of a movable train and are temporarily stored in bunkers by means of lateral conveyor belts and subsequent elevators, from which they reach the mixer, which is operated continuously, via separate metering devices can be. It is advantageous over the device described above that the concrete mixture can be changed quickly according to the recipe at the construction site, but this device is again unsuitable for use in narrow tunnels because of the lateral conveyor belts and considerable height. In addition, the quantity dispensers do not work precisely enough for the production of quality concrete.
  • the object of the invention is to provide a sufficiently low-construction device for concrete preparation in tunnels, in order to be able to produce small batches of high-quality concrete in a quantity-free and recipe-free manner without cement dust and loss from separate mixing components in the shortest possible time.
  • the main idea of the invention is to assign the mixer not only two functions as in the prior art mentioned at the outset, namely to mix the mixing components and then transport the mixture to an elevated level, but also to give this mixer the function of the weighing container.
  • Conventional weighing containers are basically funnel-shaped.
  • FIG. 1 1 shows a schematic view of a tunnel concreting device
  • FIG. 2nd 2 shows a sectional view along line 2-2 of FIG. 1
  • FIG. 3rd 2 shows a sectional view along the line 3-3 of FIG. 1
  • FIG. 4th 2 shows a sectional view along the line 4-4 of FIG. 1
  • FIG. 5 2 shows a side view of a modified embodiment of the tunnel concreting device
  • FIG. 5a the left-hand initial part of the device of FIG. 5
  • FIG. 6 a sectional view taken along line 6-6 of FIG. 5
  • FIG. 7 a longitudinal view of the right part of the device of FIG. 1 on a larger scale
  • FIG. 8th a view of the mixer in its lower position in greater detail
  • FIG. 9 a rear end view of the mixer according to FIG.
  • FIG. 10th 8 shows a detailed view in the direction 10-10 of FIG. 8
  • FIG. 11 8 shows a view of the drive device of the mixer according to FIGS. 8 and 9,
  • FIG. 12 a rear end view of the drive device according to FIG. 11,
  • FIG. 13 a view similar to FIG. 11, but with a modified drive device.
  • a number of chassis 12 are coupled together to form a train on a rail track 10.
  • a storage container 14 for binding agents On the frontmost chassis 12 of the train there is a storage container 14 for binding agents.
  • Storage containers 16 for additives are arranged on the chassis 12 behind them.
  • conveyor belts 18 which project forward and backward over the storage containers 14, 16 and are designed to rise slightly upwards, such that the front end of a conveyor belt 18 is the rear end of the conveyor belt 18 of a chassis 12 in front overlaps.
  • Each aggregate container 16 has constantly open floor outlets 20 above the conveyor belt 18. Only when the conveyor belt 18 is running, discharge takes place. First, only the first conveyor belt 18 runs and empties the container 16 located above it. Subsequently, the second conveyor belt 18 is switched on as the first conveyor belt continues and empties it under the container 16 in front of it to the front end of the train, etc. The conveyor belts therefore take over in addition to the transport still the discharge control.
  • the storage container 14 is divided by a longitudinal wall 22 into two chambers 24, 26.
  • the larger chamber 24 is used to hold cement, the smaller chamber 26 to hold an auxiliary binding agent, for example rock powder.
  • Each of the chambers 24, 26 ends at the bottom in a trough-shaped bottom in which a screw conveyor 28 or 30 is arranged.
  • the bottom of the container 14 runs at the same distance from the conveyor belt 18 running underneath it, so that the additives are conveyed below the bottom of the container 14.
  • the two screw conveyors 28, 30 protrude beyond the reservoir 14 and are each driven by a motor 32.
  • chassis 12 In front of the train having the chassis 23 there is another chassis 12 which carries a multiple conveyor device 34 which has a steeply rising conveyor belt 36 which is similar in cross section to the conveyor belts 18 and two conveyor screws 38, 40 arranged above it and lying next to one another, which have approximately the same inclination like the conveyor belt 36.
  • the outlets of the screw conveyors 28, 30 are each connected to the inlets of the screw conveyors 38, 40 in a dust-tight manner by means of transition couplings 42.
  • the aggregate conveyor belt 18 below the binder container 14 unloads directly onto the conveyor belt 36.
  • the chassis 12 of the multiple conveying device 34 carries a water reservoir 44 which is connected to the water supply network via a long supply hose 46.
  • a pump 48 conveys mixing water from this reservoir 44 via a hose 50 with a cross section which is considerably larger than that of hose 46.
  • a mixer 52 is arranged on its own chassis 12, which has a cylindrical housing 54 which carries on both sides two rollers 56, 58 which run on an angled rail track 60 to move the housing 54 from a low position (loading position ), in which the housing 54 points obliquely upwards with its cylinder axis, into which in FIG. 1 dash-dotted, forward offset loading and unloading position 54 ⁇ in which the cylinder axis is arranged approximately horizontally or slightly inclined downwards to the front.
  • Rail 60 is divided at 62 (FIG. 8).
  • the upper Part of the rail track 60 is fixedly mounted on the chassis 12, while the lower rail piece 64 is supported on a weighing frame 66, which is mounted on the chassis 12 via two laterally opposite front load cells 68 and a central rear load cell 70.
  • a transport lock 72 fixes the weighing frame 66 to the chassis 12 during transport.
  • the mixer 52 rests on stops 74 which are attached to the lower ends of the rail pieces 64.
  • the housing 54 has an upper inlet opening 76 and a front end discharge opening 78.
  • the drive motor 80 with a gear for driving the mixer shaft, not shown, is also located adjacent to the front end side of the housing 54.
  • the conveyor belt 36 and the two screw conveyors 38, 40 and the mixing water hose 50 end at the top in a funnel 82 to which a dust filter 83 is connected in a dust-tight manner at the top.
  • Overlapping flexible lamellae hang down from a bottom opening of the funnel 82 and form a circumferentially closed apron 85 which fits tightly against the edge of the inlet opening 76 of the housing 54 of the mixer 52 when it is in the lowered position.
  • the mixing components are passed from the hopper 82 into the mixer 52 through the inlet opening 76 immediately below, without generating dust.
  • a drive device 84 for the mixer 52 is shown in FIGS. 11 and 12. This has a pair of rigidly interconnected rockers 86, which are fastened to a transverse shaft 88 which is arranged adjacent to the front axle of the chassis 12 and which, when the mixer 52 is in the low position, extend rearward to the housing 54 at an angle of approximately 30 ° . On this are the bottom surface line of the Housing 54 about tangent plane rotatably mounted coaxial driving rollers 90 which engage in slots 92 of the rocker 86 which are open at the ends. The width of the slots 92 is greater than the diameter of the driving roller 90.
  • a pivot lever 94 is fastened in the center to the transverse shaft 88, at the end of which a double-acting pressure medium cylinder 96 is articulated.
  • the plane containing the transverse shaft 88 and this articulation point increases in the low position of the mixer 52 and rises to the rear at an angle of approximately 60 °.
  • the rear end of the pressure cylinder 96 is articulated on the vehicle frame 12.
  • the rockers 86 are pivoted clockwise (FIG. 11).
  • the mixer 52 is moved obliquely upwards along the rising branch of the rail track 60.
  • the entrainment rollers 90 move downward in the slots 92.
  • the housing 54 of the elevator mixer 52 pivots and reaches the unloading position 54 ⁇ .
  • the rockers 86 have been pivoted about 90 °. In the unloading position, the longitudinal axis of the cylindrical housing 54 is inclined slightly downwards.
  • the front end emptying opening 78 is opened and the concrete is emptied into a feed hopper underneath it of a concrete pump or a spraying system.
  • FIGS. 5, 5a and 6 illustrate a modification in that the train conveying the storage containers 14, 16 does not stand on the tunnel track 10, but on a track 100 of the same track width, which is supported by a long driving platform 102.
  • the driving platform 102 has an endless conveyor belt 104 which extends over its entire length, which runs horizontally in the region of the driving platform 102 and which merges into a front, rising section projecting above the driving platform 102.
  • the advantage of this arrangement is that simpler chassis can be used for the storage containers 16, and indeed without their own conveyor belts, but with separately lockable floor outlets that are opened one after the other from front to back.
  • the multiple conveyor device 34 and the mixer 52 stand with their chassis 12 on the tunnel track 10.
  • the driving platform 102 is coupled to the chassis 12 of the multiple conveyor device 34.
  • the chassis 12 for the supply train are moved forward on the moving platform 102 in accordance with the construction progress. They leave the track 100 of the moving platform 102 via an adjustable ramp 106.
  • FIG. 13 illustrates a somewhat modified drive device 84 ⁇ for the mixer 52.
  • the arrangement of the rockers 86, the pivot lever 94 and the pressure medium cylinder 96 has not changed.
  • tie rods 91 are articulated, which run approximately parallel to the longitudinal axis of the mixer on the side of the housing 54 and end in blocks 93, in each of which an elongated hole 95 is provided which extends in the longitudinal direction of the tie rods 91 and into which a cross pin 97 of the mixer housing engages with longitudinal play.
  • the cross pins 97 and the edges of the elongated holes 95 which in turn are marked by double arrows, so that the empty result connection of the drive device 84ang does not affect the weighing result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (17)

  1. Installation de préparation de béton, avec plusieurs réservoirs de stockage (14, 16) pour le stockage séparé d'additifs et de liant, un réservoir de dosage, dans lequel sont dosés, par charge, les additifs, le liant et la quantité d'eau d'appoint, un mélangeur (52) pouvant se déplacer d'une position basse, pour le chargement, à une position haute, pour le déchargement, et des dispositifs de transport (36; 38, 40) pour alimenter le réservoir de dosage à partir des réservoirs de stockage (14, 16), caractérisée en ce que le mélangeur (52) s'appuie, en sa position basse, sur un châssis de dosage (66) et que son boîtier (54) constitue le réservoir de dosage et que les réservoirs de stockage (14, 16), les dispositifs de transport (36; 38, 40) et le mélangeur (52) sont disposés sur des châssis de wagon (12) d'un train de bétonnage de tunnel.
  2. Installation suivant la revendication 1, caractérisée en ce que l'axe du mélangeur est orienté, en position basse du mélangeur (52), en oblique vers le haut et, en position haute, horizontalement ou légèrement incliné vers le bas.
  3. Installation suivant la revendication 1 ou 2, caractérisée en ce que le ou les réservoir(s) de stockage (14) de liant est (sont) disposé(s) devant les réservoirs de stockage (16) d'additifs et que le dispositif de transport (28, 30) de liant dans les réservoirs de stockage de liant (14) s'étend immédiatement au-dessus de leurs fonds et le dispositif de transport d'additifs (18) immédiatement au-dessous de ces fonds.
  4. Installation suivant l'une des revendications 1 à 3, caractérisée en ce que le réservoir de stockage (14) de liant est divisé en deux chambres (24, 26) situées l'une à côté de l'autre, auxquelles sont raccordées deux vis de transport (38, 40) environ parallèles, situées l'une à côté de l'autre.
  5. Installation suivant l'une des revendications 1 à 4, caractérisée en ce qu'à chaque châssis de wagon (12) à réservoirs de stockage (16) d'additifs correspond une courroie sans fin (18), inclinée vers le haut, de son extrémité arrière vers son extrémité avant, en saillie par rapport à la longueur du châssis, de manière que la bande transporteuse (18) d'un châssis (12) décharge les additifs directement sur la bande transporteuse (18) d'un châssis (12) situé en avant, que chaque bande transporteuse (18) est disposée au-dessous de ces réservoirs de stockage (16) et intégrée dans le châssis (12) et constitue l'organe unique de distribution des additifs.
  6. Installation suivant l'une des revendications 1 à 5, caractérisée par une plate-forme (102) avec une courroie sans fin (104) s étendant sensiblement sur toute sa longueur ainsi qu'une voie (100) de même écartement de voie qu'une voie (10) posée dans le tunnel, plusieurs châssis (12) à réservoirs de stockage d'additif (16), présentant des orifices de sortie inférieurs, pouvant y accéder, à l'aide d'une rampe à rails (106) réglable, à partir de la voie (10) posée dans le tunnel et être déplacés à l'aide de la plate-forme (102), de manière que la courroie sans fin (104) puisse être alimentée à partir de tous les réservoirs de stockage d'additif (16).
  7. Installation suivant l'une des revendications 1 à 6, caractérisée en ce que le réservoir de stockage de liant (14) a un fond présentant deux caniveaux en forme d'auge, en montée vers l'avant, situés latéralement à une distance l'un à côté de l'autre, délimitant dans le bas au moins une chambre de stockage (24, 26), dans lesquels sont disposées des vis de transport (28, 30), et que, à une distance au-dessous du fond, il est disposé une courroie sans fin (18), également en montée vers l'avant, s'étendant sur au moins la longueur du châssis, pour les additifs à transporter par-dessous le réservoir de stockage de liant (14).
  8. Installation suivant l'une des revendications 1 à 7, caractérisée en ce que, entre le châssis (12) pour le réservoir de stockage de liant (14) et un châssis (12) du mélangeur (52), il est disposé un châssis (12) propre sur lequel sont montés une bande de transport (36) en montée oblique pour les additifs et, à une distance au-dessus de celle-ci, au moins, environ parallèlement à celle-ci, un transporteur hélicoïdal (38) pour liant ou deux transporteurs hélicoïdaux (38, 40), situés l'un à côté de l'autre, pour ciment et un liant auxiliaire, que les extrémités supérieures de la bande transporteuse (36) et du ou des transporteurs hélicoïdaux (38, 40) se trouvent, l'une près de l'autre, au-dessus de l'orifice d'entrée (76) du mélangeur (52) se trouvant en sa position basse et que sous la bande de transport (36) se trouve un réservoir de stockage (44) d'eau d'appoint, à partir duquel une canalisation d'eau (50) conduit à la zone au-dessus de l'orifice d'entrée (76) du mélangeur (52).
  9. Installation suivant l'une des revendications 1 à 8, caractérisée en ce que le mélangeur (52) peut se déplacer sur une voie présentant une section initiale (64) en montée oblique et une section finale horizontale ou légèrement inclinée vers le bas et qu'au moins la zone de la section initiale (64), sur laquelle s'appuie le mélangeur (52) en sa position basse, est séparée du reste de la voie (60) et correspond au châssis de dosage (66).
  10. Installation suivant l'une des revendications 1 à 9, caractérisée en ce que le mélangeur (52) est effectivement relié à un dispositif d'entraînement pour le passage de la position basse à la position haute et que cette liaison effective est découplée, sans force, en position basse du mélangeur (52).
  11. Installation suivant la revendication 10, caractérisée en ce que, entre le dispositif d'entraînement (86) et le mélangeur (52) se trouvant en sa position basse, il existe une connexion d'entraînement en marche à vide.
  12. Installation suivant l'une des revendications 1 à 10, caractérisée en ce que le mélangeur (52) est couplé à une pair de coulisses (86) reliées rigidement l'une à l'autre, fixées à un arbre transversal (88) disposé près de l'axe avant du châssis (12), derrière celui-ci, s'étendant, en position basse du mélangeur (52), en montée plane, suivant un angle de 20 à 45°, vers l'arrière et l'avant vers la partie avant du mélangeur (52), positionnées, en position haute, en montée abrupte vers l'avant et se terminant près de la ligne d'enveloppe inférieure du boîtier (54) du mélangeur (52) se trouvant en sa position basse, que les extrémités des coulisses (86) sont couplées au mélangeur (52) par une connexion d'entraînement en marche à vide et qu'il est fixé, à l'arbre transversal (88), un levier pivotant (94), plus court que les coulisses (86), qui, en position basse du mélangeur (52) ressort obliquement vers l'arrière et se trouve en Pente plus abrupte vers le haut que les coulisses (86) et que, à l'extrémité du levier pivotant (94), vient en prise un cylindre de pression (96) à double effet dont l'autre extrémité est connectée, de manière articulée, au châssis du véhicule (12).
  13. Installation suivant la revendication 12, caractérisée en ce qu'aux extrémités des coulisses (86) sont connectées, de manière articulée, des barres de traction (91) dont les extrémités arrière présentent, chacune, un trou oblong (95) dans lequel s'engage, avec un jeu longitudinal, un pivot transversal (97) du mélangeur (52).
  14. Installation suivant la revendication 12 ou 13, caractérisée en ce que la commande du cylindre de pression (96) est prévue de manière telle qu'il peut, lorsque le mélangeur (52) atteint la position basse, encore pénétrer sur une courte distance et que la connexion mécanique entre le dispositif d'entraînement (84) et le boîtier (54) du mélangeur (52) se dégage.
  15. Installation suivant l'une des revendications 1 à 14, caractérisée en ce que l'axe du mélangeur (52) se présentant sous forme de mélangeur forcé à un seul arbre est disposé parallèlement au sens de transport.
  16. Installation suivant l'une des revendications 1 à 15, caractérisée en ce que le boîtier (54) du mélangeur (52) est généralement cylindrique et que le moteur d'entraînement (80) de l'agitateur est disposé du côté frontal avant présentant l'orifice de distribution (78) du boîtier (54).
  17. Installation suivant l'une des revendications 1 à 16, caractérisée en ce que la bande transporteuse (36) et la ou les vis de transport (38, 40) se terminent, en haut, dans un entonnoir (82) auquel est raccordé un filtre à poussières (83), de manière étanche à la poussière, et présentant un orifice dans le fond, entouré d'un tablier (85) de pourtour flexible, éventuellement composé de lamelles, pénétrant dans l'orifice d'entrée (76) du boîtier (54) du mélangeur (52).
EP87116304A 1986-11-29 1987-11-05 Dispositif pour la fabrication du béton dans un tunnel Expired - Lifetime EP0272415B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116304T ATE62853T1 (de) 1986-11-29 1987-11-05 Einrichtung zur betonherstellung in einem tunnel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3640916 1986-11-29
DE3640916A DE3640916C2 (de) 1986-11-29 1986-11-29 Verfahren und Einrichtung zur Betonherstellung in einem Tunnel

Publications (3)

Publication Number Publication Date
EP0272415A2 EP0272415A2 (fr) 1988-06-29
EP0272415A3 EP0272415A3 (en) 1989-03-22
EP0272415B1 true EP0272415B1 (fr) 1991-04-24

Family

ID=6315151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116304A Expired - Lifetime EP0272415B1 (fr) 1986-11-29 1987-11-05 Dispositif pour la fabrication du béton dans un tunnel

Country Status (5)

Country Link
US (1) US4795264A (fr)
EP (1) EP0272415B1 (fr)
JP (1) JP2536771B2 (fr)
AT (1) ATE62853T1 (fr)
DE (2) DE3640916C2 (fr)

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DE3640916A1 (de) 1988-06-01
JP2536771B2 (ja) 1996-09-18
DE3769615D1 (de) 1991-05-29
JPS63295212A (ja) 1988-12-01
ATE62853T1 (de) 1991-05-15
DE3640916C2 (de) 1998-07-16
EP0272415A3 (en) 1989-03-22
EP0272415A2 (fr) 1988-06-29
US4795264A (en) 1989-01-03

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