EP1842583B1 - Mixer with a fixed vat, in particular aimed at mixing wet or dry components, for obtaining concrete - Google Patents

Mixer with a fixed vat, in particular aimed at mixing wet or dry components, for obtaining concrete Download PDF

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Publication number
EP1842583B1
EP1842583B1 EP07370005A EP07370005A EP1842583B1 EP 1842583 B1 EP1842583 B1 EP 1842583B1 EP 07370005 A EP07370005 A EP 07370005A EP 07370005 A EP07370005 A EP 07370005A EP 1842583 B1 EP1842583 B1 EP 1842583B1
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EP
European Patent Office
Prior art keywords
plate
casing element
mixer
terminal edges
kneader
Prior art date
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Application number
EP07370005A
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German (de)
French (fr)
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EP1842583A1 (en
Inventor
Christian c/o Couvrot SA Destombes
Eric c/o Couvrot SA Brunquet
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COUVROT
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COUVROT
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Priority to PL07370005T priority Critical patent/PL1842583T3/en
Publication of EP1842583A1 publication Critical patent/EP1842583A1/en
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Publication of EP1842583B1 publication Critical patent/EP1842583B1/en
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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
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/82—Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients
    • B28C7/126—Supply means, e.g. nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients

Definitions

  • the present invention relates to a fixed bowl mixer, in particular for mixing wet or dry components, for example, silica sand or the like, for obtaining concrete.
  • This type of kneader has a generally cylindrical fixed vessel into which water and the various pulverulent components to be kneaded are introduced.
  • a kneading train comprising at least one arm provided with a blade (s) is driven in a rotational movement, in particular an epicyclic complex, making it possible to stir the products contained in the tank.
  • This kneading train is actuated by a turntable on which it is secured, mounted in free rotation on itself.
  • This turntable generally constitutes the upper wall of the tank.
  • a kneader according to this state of the art is set out in the document DE-A-196 11 304 .
  • the present invention aims to overcome these disadvantages by providing a mixer having a compact support, compact, and provided for securing various accessories to the turntable of the mixer.
  • Another object of the invention is to provide a mixer provided with high cleaning capacity of the vessel in particular by spraying water.
  • the invention relates to a mixer with fixed bowl, particularly for mixing wet or dry components, for example, cement, silica sand or the like, for obtaining concrete.
  • the kneader has, in addition, a support 1, secured to said turntable 2 of the kneader.
  • Said plate 7 has an inner face 8 and an outer face 9, respectively facing the inside and the outside of the hollow body. Said plate allows the fixing at least, on the one hand, means 10 for projecting a fluid under pressure, housed in the hollow body and secured to said inner face 8 and, on the other hand, an arm 11 provided with of blade (s), secured to said outer face 9.
  • the arm 11 makes it possible to scrape the cylindrical internal side wall 40 of the fixed vessel.
  • the means 10 for projecting a fluid under pressure can take the form of a nozzle housed in the housing and supplied with water under pressure.
  • This nozzle will pass through the housing wall at an orifice 50 to project a fluid laterally to the support.
  • the housing element 3 may be cylindrical obtained in particular in a revolution, for example of about 250 °, the terminal edges 4, 5 being parallel to the axis of revolution of the element.
  • the plate 7 may be rectangular and of length equal to or slightly greater than the distance separating the end edges 4, 5 of width substantially equal to the height of the cylindrical housing element 3.
  • the housing element 3 can be open on its lower and upper part.
  • the casing 3 is secured to the turntable 2 by means of a ring element 2.
  • This ring element allows the centering and fixing of the hollow body 3, 7 to the turntable 2 of the mixer.
  • Said ring element 12 has in particular an outer contour dimensioned and adjusted with the internal profile of the hollow body.
  • the outer contour has in particular, as illustrated in FIG. figure 6 , a circular portion 13, provided to cooperate closely with the internal diameter of the cylindrical housing element 3 and a straight portion 14 provided to cooperate closely with the rectangular plate 7.
  • the ring element 12 may be closed and in particular have a passage 16 for a feed line means 10 for projecting a fluid.
  • the support 1 may have a rigid pipe 17, annular on the inner diameter of the cylindrical housing element 3.
  • This rigid pipe may be of rectangular section.
  • a vertical double wall of the pipe may be formed on the one hand, by the inner wall of the cylindrical housing element 3 and, on the other hand, by a cylindrical part 12, mounted coaxially, of smaller diameter.
  • the horizontal double wall may be constituted by two circular flat strips 19 sealed with the vertical walls.
  • This rigid pipe can be of large section for the passage of high flows to feed the means 10 for projecting a fluid.
  • This pipe will, according to one embodiment, a water supply under a pressure of about 20 bar. The flow can be significant, about 20 m 3 / hour.
  • the rigid pipe 17 has an upper edge 20 on which is formed an inlet opening 21 for a fluid.
  • the support 1 further has a connecting element 22 for a tubular pipe, in particular flexible.
  • the connecting element 22 comes to bear around the opening 21, at least on the upper edge 20.
  • the tubular pipe, in particular flexible can rise from the connecting element, in particular passing through the passage 16 of the ring element 12, and a corresponding opening 60 on the upper part of the housing element 3.
  • the bore 23 is formed on an upper face of the connecting element 22.
  • the rear face of the element 22 is open on the inner recess 25.
  • the two lateral sides 26, 27 of the element are generally of trapezoidal rectangle shape and have two free edges 28, 29, at the rear face of the element, intended to be welded in a sealed manner to the inner wall of the cylindrical housing element 3.
  • the lower face of the connecting element 22 in which the outlet is formed has a U-shaped edge 30 intended to be welded in leaktight manner to the upper edge 20 of the rigid pipe 17.
  • the support also allows the attachment of a temperature measuring probe, in particular concrete.
  • this probe is, for example, secured to the lower end of an arm 31 projecting downwards in the tank.
  • the upper end of the arm 31 is secured, directly or indirectly, to the inner face 8 of the rectangular plate 7.
  • the fixing plate 7 may have several holes for the passage of fixing screws.
  • the fixing plate may also have blind holes, in particular oblong holes provided to cooperate with bands 2 of corresponding shape for the positioning of the accessories.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Food-Manufacturing Devices (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The mixer with fixed drum to mix wet or dry components such as cement and silica sand for obtaining concrete, comprises a mixing axle having a shaft with blades to stir the components present in the drum, a support (1) subjected to the rotatable plate of the mixer, and a ring element allows centering and fixing of hollow bodies with the rotatable plate of the mixer. The mixing axle is led into simple or complex rotation by a device having a rotatable plate. The support comprises a cylindrical casing element (3) of uncovered contour having two terminal edges. The mixer with fixed drum to mix wet or dry components such as cement and silica sand for obtaining concrete, comprises a mixing axle having a shaft with blades to stir the components present in the drum, a support (1) subjected to the rotatable plate of the mixer, and a ring element allows centering and fixing of hollow bodies with the rotatable plate of the mixer. The mixing axle is led into simple or complex rotation by a device having a rotatable plate. The support comprises a cylindrical casing element (3) of uncovered contour having two terminal edges, a rectangular plate (7) having a dimension corresponding to an opening, which separates the terminal edges of the element subjected to the sides of the terminal edges for making a hollow body of closed contour with casing element, and a temperature measurement probe. The plate has internal and external sides respectively turned towards an interior and exterior of the hollow bodies, a fixing projection unit of a fluid pressure present in the hollow bodies and subjected to the internal side of the plate, and an arm fitted with blade subjected to the external side of the plate. The casing element is cylindrical, which is obtained after a revolution of 250[deg]. The two terminal edges are parallel to a revolution axis of the element. The plate is rectangular with equal length or slightly greater than a distance separating the terminal edges of the casing element width approximately equal to a height of the cylindrical casing element. The ring element has an external contour, which is dimensioned and adjusted with an internal profile of the hollow bodies with a circular part closely with an internal diameter of the cylindrical casing element and straight part for cooperating closely with the rectangular plate. The ring element is not closed, and has a passage for supplying a fluid through a conduit of projection device. The support has a rectangular rigid duct on the internal diameter of the cylindrical casing element, and a double vertical wall of which a part is formed by an internal wall of the cylindrical casing element and by a coaxial cylindrical part of small diameter. A horizontal double wall of the support is formed by two circular flat strips welded and sealed with vertical walls. The rigid duct has an upper edge on which a fluid inlet opening is formed. The support presents in a connection element for flexible tubular conduit. The connection element comprises a top bore fixed with a tubular conduit end, an outlet for fluid positioning on the inlet opening of the rigid duct, an inner recess connecting the top bore and the outlet, an upper side in which top bore is formed, a rear side opened in the inner recess, two lateral sides in rectangular trapeze form with two free edges at the rear side to be welded and sealed on the internal wall of the cylindrical casing element, and a lower surface in which outlet is made, where the outlet has a U-shaped edge to be welded and sealed to an upper edge of rigid duct. The probe is subjected to a lower end of an arm making downwards projection in the drum, and an upper end of the arm is subjected directly or indirectly to an inner side of the rectangular plate.

Description

La présente invention a trait à un malaxeur à cuve fixe, notamment destiné au mélange de composants humides ou secs, par exemple, sable de silice ou autres, pour l'obtention de béton.The present invention relates to a fixed bowl mixer, in particular for mixing wet or dry components, for example, silica sand or the like, for obtaining concrete.

Ce type de malaxeur présente une cuve fixe généralement cylindrique et dans laquelle sont introduits de l'eau et les différents composants pulvérulents à malaxer. Un train de malaxage comprenant au moins un bras muni de pale(s) est animé d'un mouvement de rotation, notamment complexe épicycloïdal, permettant de brasser les produits contenus dans la cuve.This type of kneader has a generally cylindrical fixed vessel into which water and the various pulverulent components to be kneaded are introduced. A kneading train comprising at least one arm provided with a blade (s) is driven in a rotational movement, in particular an epicyclic complex, making it possible to stir the products contained in the tank.

Ce train de malaxage est actionné par un plateau tournant sur lequel il est assujetti, monté en libre rotation sur lui-même. Ce plateau tournant constitue généralement la paroi supérieure de la cuve.This kneading train is actuated by a turntable on which it is secured, mounted in free rotation on itself. This turntable generally constitutes the upper wall of the tank.

Le malaxeur peut comprendre, en outre, divers autres accessoires nécessaires au bon fonctionnement du dispositif, notamment pour la réalisation d'un béton de qualité, ou encore prévus pour le nettoyage de la cuve, à savoir :

  • un bras muni de pale(s), dite(s) « de bord », assujetti au plateau tournant, entraîné d'un mouvement de rotation simple pour venir racler la face interne de la paroi latérale cylindrique de la cuve fixe,
  • une sonde de mesure de la température permettant de contrôler le process de fabrication du béton, et notamment le bon dosage en eau, dont la tête est en contact avec les produits sur une partie basse de la cuve, cette sonde étant animée d'un mouvement de rotation simple assujetti au plateau tournant par l'intermédiaire d'un bras vertical,
  • au moins un dispositif pour la projection d'un fluide sous pression permettant le nettoyage de la cuve fixe, présentant au moins une buse également assujettie au plateau tournant permettant d'asperger dynamiquement toute la circonférence de la cuve.
The mixer may comprise, in addition, various other accessories necessary for the proper functioning of the device, in particular for the production of quality concrete, or for the cleaning of the tank, namely:
  • an arm provided with blade (s), said (s) "edge", subject to the turntable, driven by a simple rotational movement to scrape the inner face of the cylindrical side wall of the fixed vessel,
  • a temperature measuring probe making it possible to control the concrete manufacturing process, and in particular the correct dosage of water, the head of which is in contact with the products on a lower part of the tank, this probe being animated by a movement of simple rotation subject to the turntable by means of a vertical arm,
  • at least one device for the projection of a fluid under pressure for cleaning the fixed vessel, having at least one nozzle also subject to the turntable for dynamically spraying the entire circumference of the vessel.

Un malaxeur selon cet état de la technique est exposé dans le document DE-A-196 11 304 .A kneader according to this state of the art is set out in the document DE-A-196 11 304 .

Jusqu'à présent, ces divers accessoires assujettis au plateau sont notamment portés par une poutre horizontale faisant saillie dans la cuve. Cette poutre est à la fois encombrante et présente une forte inertie.Until now, these various accessories subject to the plate are in particular carried by a horizontal beam projecting into the tank. This beam is both bulky and has a high inertia.

La présente invention a pour but de remédier à ces inconvénients en proposant un malaxeur présentant un support compact, de faible encombrement, et prévu pour assujettir divers accessoires au plateau tournant du malaxeur.The present invention aims to overcome these disadvantages by providing a mixer having a compact support, compact, and provided for securing various accessories to the turntable of the mixer.

Un autre but de l'invention est de proposer un malaxeur muni de fortes capacités de nettoyage de la cuve notamment par projection d'eau.Another object of the invention is to provide a mixer provided with high cleaning capacity of the vessel in particular by spraying water.

D'autres buts et avantages apparaîtront au cours de la description qui va suivre qui n'est cependant donnée qu'à titre indicatif.Other goals and advantages will become apparent from the following description which is however given for information only.

L'invention concerne un malaxeur à cuve fixe, notamment destiné au mélange de composants humides ou secs, par exemple ciment, sable de silice ou autres, pour l'obtention de béton comprenant :

  • une cuve fixe dans laquelle sont introduits les différents composants à malaxer,
  • au moins un train de malaxage, présentant un arbre muni de pale(s), destiné à brasser les composants de mélange présents dans la cuve, le train de malaxage étant entraîné en rotation, simple ou complexe, par un dispositif d'entraînement comprenant au moins un plateau tournant.
The invention relates to a mixer with a fixed bowl, in particular for mixing wet or dry components, for example cement, silica sand or the like, for obtaining concrete comprising:
  • a fixed vessel into which the various components to be kneaded are introduced,
  • at least one kneading train, having a shaft provided with a blade (s), for stirring the mixing components present in the tank, the kneading train being rotated, simple or complex, by a driving device comprising at least one less a turntable.

Selon l'invention, le malaxeur présente un support, assujetti audit plateau tournant du malaxeur, ledit support comprenant :

  • un élément carter, de contour non fermé, présentant deux bords terminaux,
  • une plaque, de dimensions correspondantes à l'ouverture séparant les bords terminaux, assujettie au niveau de ses côtés auxdits bords terminaux de telle façon à constituer avec ledit élément carter un corps creux de contour fermé,
  • ladite plaque présentant une face interne et une face externe respectivement tournées vers l'intérieur et l'extérieur du corps creux, ladite plaque permettant la fixation au moins, d'une part, de moyens de projection d'un fluide sous pression, logés dans le corps creux et assujettis à la dite face interne et, d'autre part, d'un bras muni de pale(s), assujetti à ladite face externe.
According to the invention, the mixer has a support, secured to said rotating plate of the kneader, said support comprising:
  • a housing element, of unclosed contour, having two terminal edges,
  • a plate, of dimensions corresponding to the opening separating the terminal edges, secured at its sides to said end edges so as to form with said housing element a hollow body of closed contour,
  • said plate having an inner face and an outer face respectively facing inwards and outwards of the hollow body, said plate allowing at least one attachment, on the one hand, of means for projecting a fluid under pressure, housed in the hollow body and subject to said inner face and, on the other hand, an arm provided with blade (s), secured to said outer face.

L'invention sera mieux comprise à la lecture de la description suivante accompagnée des dessins en annexe et parmi lesquels :

  • la figure 1 est une vue partielle en perspective de coupe du support du malaxeur, conforme à l'invention, selon un mode de réalisation,
  • les figures 2 à 5 sont respectivement des vues de dessus, de gauche, de droite et de face du support du malaxeur, tel qu'illustré à la figure 1,
  • la figure 2B est une vue de détail, selon la coupe B-B, telle qu'illustrée à la figure 2,
  • la figure 6 est une vue de dessus du support tel qu'illustré à la figure 1,
  • la figure 6A est une vue de détail, selon la coupe A-A telle qu'illustrée à la figure 6,
  • la figure 7 est une vue en perspective trois quarts d'un élément de raccord du support, tel qu'illustré à la figure 6,
  • les figures 8 et 9 sont respectivement des vues de dessous et de dessus de l'élément de raccord, tel qu'illustré à la figure 7.
The invention will be better understood on reading the following description accompanied by the appended drawings, among which:
  • the figure 1 is a partial sectional perspective view of the mixer support, according to the invention, according to one embodiment,
  • the Figures 2 to 5 are respectively top, left, right and front views of the mixer support, as shown in FIG. figure 1 ,
  • the Figure 2B is a detail view, according to section BB, as illustrated in figure 2 ,
  • the figure 6 is a top view of the support as shown in FIG. figure 1 ,
  • the Figure 6A is a detail view, according to the AA section as illustrated in figure 6 ,
  • the figure 7 is a three-quarter perspective view of a support coupling member, as shown in FIG. figure 6 ,
  • the Figures 8 and 9 are respectively bottom and top views of the connecting element, as shown in FIG. figure 7 .

L'invention concerne un malaxeur à cuve fixe, notamment destiné au mélange de composants humides ou secs, par exemple, ciment, sable de silice ou autres, pour l'obtention de béton.The invention relates to a mixer with fixed bowl, particularly for mixing wet or dry components, for example, cement, silica sand or the like, for obtaining concrete.

Le malaxeur comprend :

  • une cuve fixe dans laquelle sont introduits notamment de l'eau et les différents composants pulvérulents à malaxer,
  • au moins un train de malaxage, présentant un arbre muni de pale(s), destiné à brasser les composants de mélange présents dans la cuve 2, le train de malaxage étant entraîné en rotation, simple ou complexe, par un dispositif d'entraînement, comprenant au moins un plateau tournant.
The mixer comprises:
  • a fixed vessel in which are introduced in particular water and the various powdery components to be kneaded,
  • at least one kneading train, having a shaft provided with a blade (s), for stirring the mixing components present in the tank 2, the kneading train being rotated, simple or complex, by a drive device, comprising at least one turntable.

Selon l'invention, le malaxeur présente, en outre, un support 1, assujetti audit plateau tournant 2 du malaxeur.According to the invention, the kneader has, in addition, a support 1, secured to said turntable 2 of the kneader.

Plus précisément, ledit support 1 comprend:

  • un élément carter 3, de contour non fermé, présentant deux bords terminaux 4, 5,
  • une plaque 7, de dimensions correspondantes à l'ouverture séparant les bords terminaux 4, 5, assujettis au niveau de ses côtés auxdits bords terminaux de telle façon à constituer avec l'élément carter 3 un contour creux de contour fermé.
More specifically, said support 1 comprises:
  • a housing element 3, of unclosed contour, having two terminal edges 4, 5,
  • a plate 7, of dimensions corresponding to the opening separating the end edges 4, 5, secured at its sides to said end edges so as to constitute with the housing element 3 a hollow contour of closed contour.

Ladite plaque 7 présente une face interne 8 et une face externe 9, respectivement tournées vers l'intérieur et l'extérieur du corps creux. Ladite plaque permet la fixation au moins, d'une part, de moyens 10 de projection d'un fluide sous pression, logés dans le corps creux et assujettis à ladite face interne 8 et, d'autre part, d'un bras 11 muni de pale(s), assujetti à ladite face externe 9.Said plate 7 has an inner face 8 and an outer face 9, respectively facing the inside and the outside of the hollow body. Said plate allows the fixing at least, on the one hand, means 10 for projecting a fluid under pressure, housed in the hollow body and secured to said inner face 8 and, on the other hand, an arm 11 provided with of blade (s), secured to said outer face 9.

Selon une variante, le bras 11 permet de racler la paroi latérale 40, interne cylindrique de la cuve fixe. Les moyens 10 de projection d'un fluide sous pression peur prendre la forme d'une buse logée dans le carter et alimentée en eau sous pression.According to a variant, the arm 11 makes it possible to scrape the cylindrical internal side wall 40 of the fixed vessel. The means 10 for projecting a fluid under pressure can take the form of a nozzle housed in the housing and supplied with water under pressure.

Cette buse traversera la paroi du carter au niveau d'un orifice 50 pour projeter un fluide latéralement au support.This nozzle will pass through the housing wall at an orifice 50 to project a fluid laterally to the support.

Tel qu'illustré à la figure 2 ou à la figure 6, l'élément carter 3 peut être cylindrique obtenu notamment suivant une révolution, par exemple d'environ 250°, les bords terminaux 4, 5 étant parallèles à l'axe de révolution de l'élément.As illustrated in figure 2 or at figure 6 , the housing element 3 may be cylindrical obtained in particular in a revolution, for example of about 250 °, the terminal edges 4, 5 being parallel to the axis of revolution of the element.

La plaque 7 peut être rectangulaire et de longueur égale ou légèrement supérieure à la distance séparant les bords terminaux 4, 5 de largeur sensiblement égale à la hauteur de l'élément carter 3 cylindrique.The plate 7 may be rectangular and of length equal to or slightly greater than the distance separating the end edges 4, 5 of width substantially equal to the height of the cylindrical housing element 3.

Tel qu'illustré à la figure 1, l'élément carter 3 peut être ouvert sur sa partie inférieure et supérieure.As illustrated in figure 1 , the housing element 3 can be open on its lower and upper part.

Selon une variante, le carter 3 est assujetti au plateau tournant 2 par l'intermédiaire d'un élément anneau 2. Cet élément anneau permet le centrage et la fixation du corps creux 3, 7 au plateau tournant 2 du malaxeur.According to a variant, the casing 3 is secured to the turntable 2 by means of a ring element 2. This ring element allows the centering and fixing of the hollow body 3, 7 to the turntable 2 of the mixer.

Ledit élément anneau 12 présente notamment un contour extérieur dimensionné et ajusté avec le profil intérieur du corps creux.Said ring element 12 has in particular an outer contour dimensioned and adjusted with the internal profile of the hollow body.

Dans le cas d'un élément carter 3 cylindrique, le contour extérieur présente notamment, tel qu'illustré à la figure 6, une partie circulaire 13, prévue pour coopérer intimement avec le diamètre interne de l'élément carter 3 cylindrique et une partie droite 14 prévue pour coopérer intimement avec la plaque rectangulaire 7. L'élément anneau 12 peut être non fermé et présenter notamment un passage 16 pour une conduite d'alimentation des moyens 10 de projection d'un fluide.In the case of a cylindrical housing element 3, the outer contour has in particular, as illustrated in FIG. figure 6 , a circular portion 13, provided to cooperate closely with the internal diameter of the cylindrical housing element 3 and a straight portion 14 provided to cooperate closely with the rectangular plate 7. The ring element 12 may be closed and in particular have a passage 16 for a feed line means 10 for projecting a fluid.

Tel qu'illustré à la figure 1 notamment, le support 1 peut présenter une canalisation rigide 17, annulaire sur le diamètre interne de l'élément carter 3 cylindrique. Cette canalisation rigide peut être de section rectangulaire.As illustrated in figure 1 in particular, the support 1 may have a rigid pipe 17, annular on the inner diameter of the cylindrical housing element 3. This rigid pipe may be of rectangular section.

Comme le montre la figure 2B, une double paroi verticale de la canalisation peut être constituée d'une part, par la paroi interne de l'élément carter 3 cylindrique et, d'autre part, par une pièce cylindrique 12, montée coaxiale, de diamètre inférieur. La double paroi horizontale peut être constituée par deux bandes planes circulaires 19 soudées de manière étanche avec les parois verticales.As shown in Figure 2B a vertical double wall of the pipe may be formed on the one hand, by the inner wall of the cylindrical housing element 3 and, on the other hand, by a cylindrical part 12, mounted coaxially, of smaller diameter. The horizontal double wall may be constituted by two circular flat strips 19 sealed with the vertical walls.

Cette canalisation rigide peut être de large section pour le passage de débits importants pour alimenter les moyens 10 de projection d'un fluide. Cette canalisation permettra, selon un mode de réalisation, une alimentation en eau sous une pression d'environ à 20 bars. Le débit pourra être important, d'environ 20 m3/heure. Telle qu'illustrée à la figure 6A, la canalisation rigide 17 présente un bord supérieur 20 sur lequel est formée une ouverture d'entrée 21 pour un fluide.This rigid pipe can be of large section for the passage of high flows to feed the means 10 for projecting a fluid. This pipe will, according to one embodiment, a water supply under a pressure of about 20 bar. The flow can be significant, about 20 m 3 / hour. As illustrated in Figure 6A , the rigid pipe 17 has an upper edge 20 on which is formed an inlet opening 21 for a fluid.

Le support 1 présente en outre un élément de raccord 22 pour une conduite tubulaire, notamment flexible. L'élément de raccord 22 vient s'appuyer autour de l'ouverture 21, au moins sur le bord supérieur 20. La conduite tubulaire notamment flexible peut s'élever à partir de l'élément de raccord, traversant notamment le passage 16 de l'élément anneau 12, ainsi qu'une ouverture correspondante 60 sur la partie supérieure de l'élément carter 3.The support 1 further has a connecting element 22 for a tubular pipe, in particular flexible. The connecting element 22 comes to bear around the opening 21, at least on the upper edge 20. The tubular pipe, in particular flexible, can rise from the connecting element, in particular passing through the passage 16 of the ring element 12, and a corresponding opening 60 on the upper part of the housing element 3.

Tel qu'illustré à la figure 7, l'élément de raccord peut présenter :

  • un alésage supérieur 23, notamment taraudé, prévu pour engager avec l'extrémité de ladite conduite tubulaire, notamment filetée,
  • une sortie 24 pour le fluide positionné en regard de l'ouverture d'entrée 21 de la canalisation rigide 17,
  • un évidement intérieur 25 reliant l'alésage supérieur 23 et la sortie 24.
As illustrated in figure 7 , the coupling element can have:
  • an upper bore 23, in particular tapped, designed to engage with the end of said tubular pipe, in particular threaded,
  • an outlet 24 for the fluid positioned facing the inlet opening 21 of the rigid pipe 17,
  • an inner recess 25 connecting the upper bore 23 and the outlet 24.

Plus particulièrement, l'alésage 23 est réalisé sur une face supérieure à l'élément de raccord 22. La face arrière de l'élément 22 est ouverte sur l'évidement intérieur 25. Les deux côtés latéraux 26, 27 de l'élément de raccord sont de forme générale en trapèze rectangle et présentent deux bords libres 28, 29, au niveau de la face arrière de l'élément, destinés à être soudés de manière étanche à la paroi intérieure de l'élément carter 3 cylindrique.More particularly, the bore 23 is formed on an upper face of the connecting element 22. The rear face of the element 22 is open on the inner recess 25. The two lateral sides 26, 27 of the element are generally of trapezoidal rectangle shape and have two free edges 28, 29, at the rear face of the element, intended to be welded in a sealed manner to the inner wall of the cylindrical housing element 3.

La face inférieure de l'élément de raccord 22 dans laquelle est réalisée la sortie présente un bord en U 30 destiné à être soudé de manière étanche au bord supérieur 20 de la canalisation rigide 17.The lower face of the connecting element 22 in which the outlet is formed has a U-shaped edge 30 intended to be welded in leaktight manner to the upper edge 20 of the rigid pipe 17.

Selon une variante de réalisation, le support permet en outre la fixation d'une sonde de mesure de la température, notamment du béton. Telle qu'illustrée à la figure 1, cette sonde est, par exemple, assujettie à l'extrémité inférieure d'un bras 31 faisant saillie vers le bas dans la cuve. L'extrémité supérieure du bras 31 est assujettie, directement ou indirectement, à la face interne 8 de la plaque rectangulaire 7.According to an alternative embodiment, the support also allows the attachment of a temperature measuring probe, in particular concrete. As illustrated in figure 1 this probe is, for example, secured to the lower end of an arm 31 projecting downwards in the tank. The upper end of the arm 31 is secured, directly or indirectly, to the inner face 8 of the rectangular plate 7.

Telle qu'illustrée à la figure 5, la plaque de fixation 7 peut présenter plusieurs perçages pour le passage de vis de fixation. La plaque de fixation pourra présenter également des trous borgnes, notamment oblongues prévus pour coopérer avec des bandes 2 de forme correspondante pour le positionnement des accessoires.As illustrated in figure 5 , the fixing plate 7 may have several holes for the passage of fixing screws. The fixing plate may also have blind holes, in particular oblong holes provided to cooperate with bands 2 of corresponding shape for the positioning of the accessories.

Naturellement, d'autres modes de mise en oeuvre, à la portée de l'homme de l'art, auraient pu être envisagés sans pour autant sortir du cadre de l'invention.Naturally, other modes of implementation, within the reach of those skilled in the art, could have been envisaged without departing from the framework of the invention.

Claims (11)

  1. A kneader with a fixed vessel, in particular intended for the mixture of humid or dry components, for instance, cement, silica sand or other, for obtaining concrete, including:
    - a fixed vessel wherein the different components to be kneaded are introduced,
    - at least one kneading rack, exhibiting a shaft fitted with blade(s), intended for stirring the mixture components present in the vessel (2), wherein the kneading rack is driven into rotation, simple or complex rotation, by a driving device including at least one revolving platen, characterised in that the kneader exhibits a bracket (1), slaved to said revolving platen (2) of the kneader, said bracket (1) including :
    - a casing element (3), whose periphery is not closed, exhibiting two terminal edges (4,5),
    - a plate (7), of dimensions corresponding to the opening between the terminal edges (4, 5), slaved at its sides to said terminal edges so as to form with said casing element (3) a hollow body with closed periphery,
    - said plate (7) exhibiting an internal face (8) and an external face (9) respectively turned inwardly and outwardly from the hollow body, said plate enabling the attachment at least, on the one hand, of means (10) for projecting a pressurised fluid, housed in the hollow body and slaved to said internal face (8) and, on the other hand, of an arm (11) fitted with blades (s), slaved to said external face (9).
  2. A kneader according to claim 1, wherein:
    - the casing element (3) is cylindrical, obtained according to a revolution, in particular of approximately 250°, both terminal edges (4, 5) being parallel to the axis of revolution of the element,
    - the plate (7) is rectangular, whose length is equal to or slightly greater than the distance between the terminal edges (4,5), whose width is substantially equal to the height of the cylindrical casing element (3).
  3. A kneader according to claim 2, wherein a ring element (12) enables centring and fastening the hollow body (3, 7) to the revolving platen (2) of the kneader, said ring element (12) exhibiting an outer periphery sized and adjusted with the inner profile of the hollow body, with a circular portion (13), provided for co-operating tightly with the internal diameter of the cylindrical casing element (3), and a straight portion (14) provided for co-operating tightly with the rectangular plate (7).
  4. A kneader according to claim 3, wherein the ring element (12) is not closed, and exhibits a passage (16) for a supply conduit of the means (10) for projecting a fluid.
  5. A kneader according to any of the claims 2 to 4, wherein the bracket (1) exhibits an annular rigid duct (17), on the internal diameter of the cylindrical casing element (3).
  6. A kneader according to claim 5, wherein the rigid duct (17) has a rectangular cross-section, a double vertical wall being formed, on the one hand, by the internal wall of the cylindrical casing element (3) and, on the other hand, by a coaxial cylindrical part (18), of smaller diameter, the double horizontal wall being formed of two circular planar bands (19) welded tightly with the vertical walls.
  7. A kneader according to claim 6, wherein the rigid duct (17) exhibits an upper edge (20) whereon is formed an inlet opening (21) for a fluid, the bracket (1) exhibiting, moreover, a fitting element (22) for a tubular conduit, in particular a flexible conduit, bearing around the opening (21), at least on said upper edge (20).
  8. A kneader according to claim 7, wherein the fitting element (22) exhibits:
    - an upper bore (23) provided for engaging into the end of said tubular conduit,
    - an outlet (24) for fluid facing the inlet opening (21) of the rigid duct (17)
    - an inner recess (25) connecting the upper bore (23) and the outlet (24).
  9. A kneader according to claim 8, wherein the fitting element exhibits, moreover :
    - an upper face wherein is realised the upper bore (23),
    - a rear face, opened to the inner recess (25),
    - two lateral sides (26, 27) generally rectangular trapezoid in shaped, exhibiting two free edges (28,29), at the rear face, intended for being welded tightly to the inner wall of the casing element (3) cylindrical,
    - a lower face wherein is realised the outlet (24), exhibiting a U-shaped edge (30) intended for being welded tightly to the upper edge (20) of the rigid duct (17).
  10. A kneader according to any of the claims 1 to 9, wherein the bracket enables, moreover, the attachment of a temperature measuring probe.
  11. A kneader according to claim 10, wherein the probe is slaved to the lower end of an arm (31) protruding downwards in the vessel, and wherein the upper end of the arm (31) is slaved, directly or indirectly, to the internal face (8) of the rectangular plate (7).
EP07370005A 2006-04-07 2007-03-19 Mixer with a fixed vat, in particular aimed at mixing wet or dry components, for obtaining concrete Active EP1842583B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07370005T PL1842583T3 (en) 2006-04-07 2007-03-19 Mixer with a fixed vat, in particular aimed at mixing wet or dry components, for obtaining concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0603065A FR2899494B1 (en) 2006-04-07 2006-04-07 FIXED TANK MIXER, IN PARTICULAR FOR THE MIXTURE OF WET OR DRY COMPONENTS, FOR THE PRODUCTION OF CONCRETE.

Publications (2)

Publication Number Publication Date
EP1842583A1 EP1842583A1 (en) 2007-10-10
EP1842583B1 true EP1842583B1 (en) 2008-09-24

Family

ID=37459415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07370005A Active EP1842583B1 (en) 2006-04-07 2007-03-19 Mixer with a fixed vat, in particular aimed at mixing wet or dry components, for obtaining concrete

Country Status (6)

Country Link
EP (1) EP1842583B1 (en)
AT (1) ATE409078T1 (en)
DE (1) DE602007000138D1 (en)
ES (1) ES2314972T3 (en)
FR (1) FR2899494B1 (en)
PL (1) PL1842583T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3000906B1 (en) 2013-01-15 2015-03-06 Skako Concrete CONICAL CONVEYOR TANK MIXER
CN110341038A (en) * 2019-07-09 2019-10-18 衡水积土科技有限公司 A kind of intelligent concrete additive feeding device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE319717B (en) * 1966-11-16 1970-01-19 E Fejmert
DE2000201A1 (en) * 1969-11-05 1971-05-13 Hazet Zwickau Hartzerkleinerun Device for cleaning mixing devices
DE3405385A1 (en) * 1984-02-15 1985-08-22 Stetter Gmbh, 8940 Memmingen Annular-trough forced mixer
DE19611304C2 (en) * 1996-03-22 1998-04-09 Verschleis Technik Dr Ing Hans Ring trough mixer

Also Published As

Publication number Publication date
FR2899494A1 (en) 2007-10-12
ES2314972T3 (en) 2009-03-16
FR2899494B1 (en) 2008-06-06
PL1842583T3 (en) 2009-03-31
ATE409078T1 (en) 2008-10-15
DE602007000138D1 (en) 2008-11-06
EP1842583A1 (en) 2007-10-10

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