EP2239120B1 - Transport vehicle for delivering a binder/aggregate mixture - Google Patents

Transport vehicle for delivering a binder/aggregate mixture Download PDF

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Publication number
EP2239120B1
EP2239120B1 EP20090165630 EP09165630A EP2239120B1 EP 2239120 B1 EP2239120 B1 EP 2239120B1 EP 20090165630 EP20090165630 EP 20090165630 EP 09165630 A EP09165630 A EP 09165630A EP 2239120 B1 EP2239120 B1 EP 2239120B1
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EP
European Patent Office
Prior art keywords
mixing
transport vehicle
vehicle
line mixer
mixer
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EP20090165630
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German (de)
French (fr)
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EP2239120A2 (en
EP2239120A3 (en
Inventor
Albrecht Rombold
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Rombold & Gfrohrer & Co KG GmbH
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Rombold & Gfrohrer & Co KG GmbH
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    • 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
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4234—Charge or discharge systems therefor
    • B28C5/4244—Discharging; Concrete conveyor means, chutes or spouts therefor
    • B28C5/4258—Discharging; Concrete conveyor means, chutes or spouts therefor using pumps or transporting screws
    • 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
    • B28C5/0875—Mixing in separate stages involving different containers for each stage
    • 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
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4282—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with moving mixing tools in a stationary container
    • B28C5/4286—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with moving mixing tools in a stationary container with mixing screw-blades
    • 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
    • B28C9/0454—Self-contained units, i.e. mobile plants having storage containers for the ingredients
    • B28C9/0463—Self-contained units, i.e. mobile plants having storage containers for the ingredients with a mixing discharge trough with a free end, e.g. provided with a mixing screw or pivotable about a vertical or horizontal axis

Definitions

  • the present invention relates to a vehicle for the delivery and processing of dry building materials to / the construction site.
  • Dry building materials e.g. Concrete mixtures are delivered to the construction site so far ready for installation by means of transport vehicles.
  • transport vehicles have a, often designed as a mixing drum, container in which a binder, in particular cement, and aggregates, such.
  • a binder in particular cement, and aggregates, such.
  • As sand and the like mixed with water and ready for installation is delivered to the site.
  • a transport vehicle according to the preamble of claim 1 is known from EP 1 842 643 A2 known.
  • Advantageous development of the invention are the subject of the associated dependent claims.
  • Transport vehicle has, in addition to the container, which may be a closed or open container in the manner of a mixing drum, a mixing / conveying device, in which the preferably dry or dry or largely dry mixture of binder and rock mixtures or additives and additives with Water is mixed and thus turned on ready to use.
  • the mixing device is provided with a water connection or connected to a water tank, which allows the ready-to-dry preparation of the dry building material.
  • the tube mixer can of course be designed for the addition of additives.
  • the tube mixer on the required addition devices or compounds with tank for additives.
  • the tube mixer picks up the unburned dry mortar mixture, mixes it with water and gives it e.g. to a concrete pump or sprayer.
  • the shaft of the tube mixer is arranged axially displaceable in the tube mixer.
  • An advantage of the invention is that in the mixing vessel, i. the mixing drum of the transport vehicle only the dry building material is mixed, whereby the components of the dry building material are optimally homogenized because of the rotation of the mixing drum.
  • the ready-mixed building material after passing through the pipe mixer has thus over the entire output time a consistent homogeneous quality in contrast to the silo delivery of dry building materials, where due to gravity segregation occurs and thus the quality of the building material fluctuates over the discharge period.
  • the invention is not limited to dry building materials, e.g. Dry concrete or limited to the mixing of precast concrete but extends to all types of building materials.
  • metering devices for the supply of water or the supply of the additives are connected to the tube mixer.
  • the tube mixer according to the invention comprises a mixing and screw conveyor, which allows to deliver the dry mortar mixture to the place of use at the point of use.
  • the tube mixer After delivery of the desired concrete batch or after completion of the continuous delivery process, the tube mixer is cleaned and is thus ready for the next use or the preparation of the next batch.
  • the ready-to-dry preparation of the dry building material mixture takes place on site, ie. H. at the site, thereby eliminating the provision of a processing time for the Anfahrweg and beyond a preparation of only a part of the container contents of the transport vehicle is possible.
  • a mixing device then need not necessarily be arranged on the transport vehicle, although this is very advantageous, but can also stand on the site itself.
  • the pipe mixer is releasably held on the transport vehicle and can be turned off for use on the site.
  • the pipe mixer may need to have the necessary metering devices and water connections or connections for additives to prepare the dry building material in connection with the transport vehicle or to make it self-sufficient.
  • the tube mixer is arranged on one and the same vehicle as the container itself, so these components can also be arranged separately on a trailer, in which case, for example, both on the towing vehicle and on the trailer one container and on the towing vehicle or trailer a pipe mixer can be arranged. It is of course possible to arrange a plurality of containers as well as a plurality of mixing devices on the transport vehicle.
  • the truck mixer 10 has a chassis 12 on which a container for a dry building material in the form of a mixing drum 14 is rotatably driven.
  • the drive 16 of the mixing drum 14 is located at its front.
  • the addition or outlet end 18 is arranged at the rear of the mixing drum 14, the addition or outlet end 18 is arranged.
  • a pipe mixer 20 preferably releasably - held.
  • the pipe mixer 20 is designed for the treatment of a delivered in the mixing drum 14 to the site dry concrete mixture with water and additives.
  • the tube mixer 20 is provided with known mixing elements.
  • the processing of the present in the mixing drum 14 dry mixture takes place at the site either continuously or batchwise.
  • the transport vehicle preferably has a water tank 22, which is connected to the pipe mixer 20.
  • the water can also be kept at the construction site.
  • a control is provided, over which the pipe mixer 20 operate itself as well as the necessary dosing or supply facilities for water and additives.
  • the purpose to be provided lines and pumps are not shown in the drawing, as well as possibly to be provided tanks for additives that are added in the ready-to-use treatment of the concrete mix with.
  • An essential aspect of the invention is that the binder / aggregate mixture delivered by the transport vehicle is not yet ready for setting, which is why it can be transported as long as desired without the quality of processing of the mixture being adversely affected by intermediate setting during transport.
  • the dry building material is ideally homogenized at the construction site, so that a consistently high quality of the ready-to-use building material is ensured over the entire delivery period.
  • the mixture can be better tailored to the processing needs at the construction site.
  • a container and a Zudosier adopted for the accelerator is provided on the transport vehicle.
  • the new technology makes it possible to deliver the concrete at several construction sites in small partial batches, which are then mixed ready-to-use on site.
  • the pipe mixer is in Fig. 1 shown in its position of use, in which it can be arranged parallel to the longitudinal axis of the vehicle.
  • the tube mixer 20 is preferably held on a rotation axis 24 pivotally mounted on the transport vehicle 10, so that the mixing and conveying pipe 25 can be pivoted as needed in a favorable position.
  • a height adjustment 26 is preferably provided with a crank, with which the outlet end 28 of the mixing and conveying pipe 25 can be positioned higher or lower. In a neutral position, the mixing and conveying pipe 25 is aligned substantially horizontally.
  • the pipe mixer 20 further includes a drive 30 which is connected to a mixer inlet pipe 32nd is flanged.
  • the mixer inlet pipe 32 has on its upper side a funnel 34, via which the dry concrete mixture from the mixing drum 14 can be transferred into the raw mixer 20.
  • a chute 36 can still be connected to the outlet 18 of the mixing drum 14.
  • the engine may also be formed by a hydraulic or pneumatic drive.
  • the mixing and conveying pipe is connected via a joint 38 with the mixer inlet pipe 32 ( Fig. 3 ), so that the elongated mixing and conveying pipe 25 from an operating position A parallel to the longitudinal axis of the vehicle ( Fig. 1 and 2 ) is pivotable in a transport position B, in which the mixing and conveying pipe is inclined relative to the longitudinal axis of the vehicle 10 so that the pipe mixer 20 does not stand behind the vehicle end out.
  • the pivoting is preferably via a vertical axis, but can also take place via a horizontal or inclined axis.
  • a releasable coupling for the mixing and conveying screw arranged in the elongated mixing and conveying pipe 25 is provided in the pipe mixer, via which it can be flanged to the drive shaft at the outlet end of the mixer inlet pipe 32.
  • the tube mixer 20 is preferably but not necessarily releasably held to the vehicle 10.
  • the mixer inlet pipe serves to bring the mixture from the mixing tank 14 into contact with water and optionally additives, the intensive mixing then taking place in the mixing and conveying pipe 25.

Description

Die vorliegende Erfindung betrifft ein Fahrzeug zur Anlieferung und Aufbereitung von Trockenbaustoffen an die/der Baustelle.The present invention relates to a vehicle for the delivery and processing of dry building materials to / the construction site.

Trockenbaustoffe, z.B. Betonmischungen werden bislang einbaufertig mittels Transportfahrzeugen an die Baustelle geliefert. Diese Transportfahrzeuge haben einen, oft als Mischtrommel ausgebildeten, Behälter, in dem ein Bindemittel, insbesondere Zement, und Gesteinskörnungen, wie z. B. Sand und dergleichen zusammen mit Wasser angemischt und einbaufertig an die Baustelle geliefert wird.Dry building materials, e.g. Concrete mixtures are delivered to the construction site so far ready for installation by means of transport vehicles. These transport vehicles have a, often designed as a mixing drum, container in which a binder, in particular cement, and aggregates, such. As sand and the like mixed with water and ready for installation is delivered to the site.

Dies ist in den Fällen problematisch, in welchen der Fahrweg des Transportfahrzeugs zum Einbauort aufgrund der örtlichen Bedingungen z. B. in einem Tunnel besonders lang ist und in Fällen, in denen nur kleine Chargen zur Verarbeitung benötigt werden. Im ersten Fall muss das einbaufertige Gemisch so eingestellt werden, dass es über den gesamten benötigten Zeitraum verarbeitbar ist und daher nicht bereits während der Fahrt abbindet. Doch muss dann bei der Verarbeitung durch die Zugabe von Beschleunigern sicher gestellt werden, dass die Betonmischung nach dem Aufbringen schnell abbindet. Da eine lange Verarbeitungszeit notwendig ist, muss relativ viel Beschleuniger zugesetzt werden, um diesen Anforderungen zu genügen.This is problematic in cases in which the path of the transport vehicle to the installation due to the local conditions such. B. is particularly long in a tunnel and in cases where only small batches are needed for processing. In the first case, the ready-to-install mixture must be adjusted so that it can be processed over the entire required period of time and therefore does not set during the journey. However, during processing, it must be ensured by the addition of accelerators that the concrete mix sets quickly after application. Since a long processing time is necessary, a relatively large amount of accelerator must be added to meet these requirements.

Im zweiten Fall, indem nur geringe Chargen benötigt werden, wie z. B. beim Erstellen von Türmen, z. B. für Windräder, wo der Beton chargenweise an die Turmspitze transportiert und verarbeitet wird, besteht der Nachteil darin, dass das Transportfahrzeug mit einem nur teilweise gefüllten Mischbehälter losfährt, was die Anlieferpreise für den Beton drastisch verteuert. Ein Transportfahrzeug gemäß dem Oberbegriff des Anspruchs 1 ist aus der EP 1 842 643 A2 bekannt.In the second case, by only small batches are needed, such. B. when creating towers, z. B. for wind turbines, where the concrete is transported in batches to the spire and processed, the disadvantage is that the transport vehicle losfährt with a partially filled mixing container, which drastically increases the delivery prices for the concrete. A transport vehicle according to the preamble of claim 1 is known from EP 1 842 643 A2 known.

Es ist Aufgabe der Erfindung, ein Transportfahrzeug zur Anlieferung und Aufbereitung von Trockenbaustoffen umfassend einen schwenkbaren Rohrmischer zu schaffen, das eine individuelle Verarbeitung mit geringen Beschleunigereinsatz unabhängig von der Dauer des Anfahrweges erlaubt. Diese Aufgabe wird durch ein Transportfahrzeug gemäß Anspruch 1 gelöst. Vorteilhafte Weiterbildung der Erfindung sind Gegenstand der zugehörigen Unteransprüche.It is an object of the invention to provide a transport vehicle for delivery and processing of dry building materials comprising a pivotable tubular mixer, which allows individual processing with low accelerator use, regardless of the duration of the Anfahrweges. This task is through Transport vehicle solved according to claim 1. Advantageous development of the invention are the subject of the associated dependent claims.

Transportfahrzeug weist neben dem Behälter, der ein geschlossener oder offener Behälter in Art einer Mischtrommel sein kann, eine Misch/Fördereinrichtung auf, in welcher das vorzugsweise trockene bzw. noch weit gehend trockene bzw. erdfeuchte Gemisch aus Bindemittel und Gesteinsmischungen bzw. Zuschlagsstoffen und Additiven mit Wasser vermischt und somit verarbeitungsfertig angemacht wird. Die Mischeinrichtung ist hierfür mit einem Wasseranschluss versehen bzw. mit einem Wassertank verbunden, der die einbaufertige Zubereitung des Trockenbaustoffs erlaubt. Der Rohrmischer kann selbstverständlich für die Zugabe von Additiven ausgebildet sein. Hierfür weist der Rohrmischer die erforderlichen Zugabeeinrichtungen bzw. Verbindungen mit Tank für Additiven auf. Der Rohrmischer nimmt das noch nicht angemachte Trockenbaustoffgemisch auf, vermengt es mit Wasser und gibt es z.B. an eine Betonpumpe oder eine Spritzanlage ab. Es ist selbstverständlich nach dem fertigen Anmischen in dem Rohrmischer auch jede andere, z.B. manuelle, Verarbeitung des einbaufertigen Gemischs, nachfolgend beispielsweise Betongemischs, denkbar. Da die Betonmischung erst am Einbauort in dem Rohrmischer angemacht wird, kann die Verarbeitungszeit des Betons drastisch reduziert werden, was verschiedene Vorteile mit sich bringt.Transport vehicle has, in addition to the container, which may be a closed or open container in the manner of a mixing drum, a mixing / conveying device, in which the preferably dry or dry or largely dry mixture of binder and rock mixtures or additives and additives with Water is mixed and thus turned on ready to use. For this purpose, the mixing device is provided with a water connection or connected to a water tank, which allows the ready-to-dry preparation of the dry building material. The tube mixer can of course be designed for the addition of additives. For this purpose, the tube mixer on the required addition devices or compounds with tank for additives. The tube mixer picks up the unburned dry mortar mixture, mixes it with water and gives it e.g. to a concrete pump or sprayer. It is of course after the finished mixing in the tube mixer also any other, e.g. manual, processing the ready-mixed mixture, hereinafter, for example, concrete mix conceivable. Since the concrete mix is first turned on at the installation site in the tube mixer, the processing time of the concrete can be drastically reduced, which brings various benefits.

Erfindungsgemäß ist zumindest ein Teil der Welle des Rohrmischers axial verschiebbar in dem Rohrmischer angeordnet. So ist es möglich, vor dem insbesondere seitlichen Verschwenken eines Teils des Rohrmischers, insbesondere des Förder- und Mischrohres die Welle im Förder- und Mischrohr von der Antriebswelle auf einfache Weise zu trennen. Die ist besonders dann vorteilhaft, wenn in einer vorteilhaften Ausgestaltung der Erfindung des Förder- und Mischrohr - insbesondere um eine vertikale Achse - verschwenkbar auf dem Transportfahrzeug gehalten ist. In diesem Fall kann nämlich das Förder- und Mischrohr in Transportstellung seitlich oder nach oben/unten weg geschwenkt werden, so dass es nicht nach hinten über das Fahrzeug hinaus steht.According to the invention, at least a part of the shaft of the tube mixer is arranged axially displaceable in the tube mixer. Thus, it is possible to separate the shaft in the conveying and mixing tube of the drive shaft in a simple manner before the particular lateral pivoting of a portion of the pipe mixer, in particular the conveying and mixing tube. This is particularly advantageous if, in an advantageous embodiment of the invention of the conveyor and mixing tube - is held pivotably on the transport vehicle - in particular about a vertical axis. In this case, namely, the conveyor and mixing tube can be pivoted away in the transport position laterally or up / down, so that it does not stand backwards beyond the vehicle.

Ein Vorteil der Erfindung besteht darin, dass in dem Mischbehälter, d.h. der Mischtrommel des Transportfahrzeugs nur der Trockenbaustoff gemischt wird, wodurch die Bestandteile des Trockenbaustoffs wegen der Drehung der Mischtrommel optimal homogenisiert werden. Der fertig angemischte Baustoff nach dem Durchlaufen des Rohrmischers hat damit über die gesamte Ausgabezeit eine gleich bleibende homogene Qualität im Gegensatz zur Siloanlieferung von Trockenbaustoffen , wo aufgrund der Schwerkraft eine Entmischung auftritt und damit die Qualität des Baustoffes über den Abgabezeitraum schwankt.An advantage of the invention is that in the mixing vessel, i. the mixing drum of the transport vehicle only the dry building material is mixed, whereby the components of the dry building material are optimally homogenized because of the rotation of the mixing drum. The ready-mixed building material after passing through the pipe mixer has thus over the entire output time a consistent homogeneous quality in contrast to the silo delivery of dry building materials, where due to gravity segregation occurs and thus the quality of the building material fluctuates over the discharge period.

Selbstverständlich ist die Erfindung nicht nur auf Trockenbaustoffe, wie z.B. Trockenbeton bzw. auf die Anmischung von Fertigbeton beschränkt sondern erstreckt sich auf alle Arten von Baustoffen.Of course, the invention is not limited to dry building materials, e.g. Dry concrete or limited to the mixing of precast concrete but extends to all types of building materials.

Vorzugsweise sind mit dem Rohrmischer Dosiereinrichtungen für die Wasserzufuhr bzw. die Zufuhr der Additive verbunden.Preferably, metering devices for the supply of water or the supply of the additives are connected to the tube mixer.

Der Rohrmischer weist erfindungsgemäß eine Misch- und Förderschnecke auf, welche es erlaubt, das Trockenbaustoffgemisch bis zum Ort der Verwendung an die Verwendungsstelle abzugeben.The tube mixer according to the invention comprises a mixing and screw conveyor, which allows to deliver the dry mortar mixture to the place of use at the point of use.

Nach der Abgabe der gewünschten Betoncharge bzw. nach Abschluss des kontinuierlichen Anlieferungsverfahrens wird der Rohrmischer gereinigt und ist somit für den nächsten Einsatz bzw. die Zubereitung der nächsten Charge bereit.After delivery of the desired concrete batch or after completion of the continuous delivery process, the tube mixer is cleaned and is thus ready for the next use or the preparation of the next batch.

Durch eine vorteilhafte Ausbildung der Erfindung ist es auch möglich, kleinere Chargen an verschiedenen Baustellen abzuliefern, was wiederum die Anlieferungskosten für den Beton beträchtlich verringert.By an advantageous embodiment of the invention, it is also possible to deliver smaller batches at different sites, which in turn significantly reduces the delivery cost of the concrete.

Verfahrensmäßig erfolgt die einbaufertige Zubereitung des Trockenbaustoffgemisches vor Ort, d. h. am Einsatzort, wodurch das Vorhalten einer Verarbeitungszeit für den Anfahrweg entfällt und darüber hinaus eine Zubereitung nur eines Teiles des Behälterinhaltes des Transportfahrzeugs möglich ist. Eine derartige Mischeinrichtung muss dann nicht zwangsweise am Transportfahrzeug angeordnet sein, obwohl dies sehr vorteilhaft ist, sondern kann auch an der Baustelle selbst stehen.According to the method, the ready-to-dry preparation of the dry building material mixture takes place on site, ie. H. at the site, thereby eliminating the provision of a processing time for the Anfahrweg and beyond a preparation of only a part of the container contents of the transport vehicle is possible. Such a mixing device then need not necessarily be arranged on the transport vehicle, although this is very advantageous, but can also stand on the site itself.

In einer vorteilhaften Ausbildung kann auch vorgesehen sein, dass der Rohrmischer lösbar an dem Transportfahrzeug gehalten und für den Einsatz auf der Baustelle abstellbar ist. In diesem Fall muss der Rohrmischer gegebenenfalls über die notwendigen Dosiereinrichtungen und Wasseranschlüsse bzw. Anschlüsse für Additive verfügen, um eine Zubereitung des Trockenbaustoffs in Verbindung mit dem Transportfahrzeug oder auch autark davon zu ermöglichen.In an advantageous embodiment can also be provided that the pipe mixer is releasably held on the transport vehicle and can be turned off for use on the site. In this case, the pipe mixer may need to have the necessary metering devices and water connections or connections for additives to prepare the dry building material in connection with the transport vehicle or to make it self-sufficient.

Auch wenn es vorteilhaft ist, dass der Rohrmischer auf ein- und demselben Fahrzeug wie der Behälter selbst angeordnet ist, so können diese Komponenten auch getrennt auf einem Gespann angeordnet sein, wobei dann beispielsweise sowohl auf dem Zugfahrzeug als auch auf dem Anhänger jeweils ein Behälter und auf dem Zugfahrzeug oder dem Anhänger einen Rohrmischer angeordnet sein können. Es ist selbstverständlich möglich, mehrere Behälter als auch mehrere Mischeinrichtungen auf dem Transportfahrzeug anzuordnen.Although it is advantageous that the tube mixer is arranged on one and the same vehicle as the container itself, so these components can also be arranged separately on a trailer, in which case, for example, both on the towing vehicle and on the trailer one container and on the towing vehicle or trailer a pipe mixer can be arranged. It is of course possible to arrange a plurality of containers as well as a plurality of mixing devices on the transport vehicle.

Darüber hinaus bedarf es keiner Erläuterung, dass neben dem Rohrmischer alle notwendigen Pumpen und Dosiereinrichtungen vorzugsweise ebenfalls auf dem Transportfahrzeug angeordnet sind.In addition, there is no need to explain that in addition to the pipe mixer all the necessary pumps and metering devices are preferably also arranged on the transport vehicle.

Die Erfindung wird nachfolgend beispielsweise anhand der schematischen Zeichnung beschrieben. In dieser zeigen:

Fig. 1
eine schematische Seitensicht eines Transportfahrzeugs in Form eines Fahrmischers mit einer Mischtrommel als Behälter und einem Rohrmischer,
Fig. 2
ein Detail mit dem Trommelmischer aus Fig. 1 in Seitenansicht, und
Fig. 3
das Detail aus Fig. 2 in Aufsicht
The invention will be described below by way of example with reference to the schematic drawing. In this show:
Fig. 1
1 is a schematic side view of a transport vehicle in the form of a truck mixer with a mixing drum as a container and a pipe mixer,
Fig. 2
a detail with the drum mixer Fig. 1 in side view, and
Fig. 3
the detail Fig. 2 in supervision

Der Fahrmischer 10 hat ein Chassis 12, auf dem ein Behälter für einen Trockenbaustoff in Form einer Mischtrommel 14 drehbar angetrieben gehalten ist. Der Antrieb 16 der Mischtrommel 14 befindet sich an ihrer Vorderseite. An der Rückseite der Mischtrommel 14 ist das Zugabe- bzw. Auslassende 18 angeordnet. Unter diesem Auslassende 18 ist ein Rohrmischer 20 - vorzugsweise lösbar - gehalten. Der Rohrmischer 20 ist ausgebildet für die Aufbereitung eines in der Mischtrommel 14 an die Baustelle angelieferten Trockenbetongemischs mit Wasser und Additiven. Hierfür ist der Rohrmischer 20 mit an sich bekannten Mischorganen versehen. Das Aufbereiten des in der Mischtrommel 14 befindlichen Trockengemisches erfolgt an der Baustelle entweder kontinuierlich oder chargenweise. Hierfür weist das Transportfahrzeug vorzugsweise einen Wassertank 22 auf, welcher mit dem Rohrmischer 20 verbunden ist. Das Wasser kann jedoch auch an der Baustelle vorgehalten werden. Für die Betätigung des Rohrmischers 20 ist eine Steuerung vorgesehen, über den sich der Rohrmischer 20 selbst betätigen lässt als auch die notwendigen Dosier bzw. Zufuhreinrichtungen für Wasser und Additive. Die hierfür vorzusehenden Leitungen und Pumpen sind in der Zeichnung nicht dargestellt, ebenso wie gegebenenfalls vorzusehende Tanks für Additive, die beim gebrauchsfertigen Aufbereiten der Betonmischung mit zugegeben werden.The truck mixer 10 has a chassis 12 on which a container for a dry building material in the form of a mixing drum 14 is rotatably driven. The drive 16 of the mixing drum 14 is located at its front. At the rear of the mixing drum 14, the addition or outlet end 18 is arranged. Under this outlet end 18, a pipe mixer 20 - preferably releasably - held. The pipe mixer 20 is designed for the treatment of a delivered in the mixing drum 14 to the site dry concrete mixture with water and additives. For this purpose, the tube mixer 20 is provided with known mixing elements. The processing of the present in the mixing drum 14 dry mixture takes place at the site either continuously or batchwise. For this purpose, the transport vehicle preferably has a water tank 22, which is connected to the pipe mixer 20. However, the water can also be kept at the construction site. For the operation of the pipe mixer 20, a control is provided, over which the pipe mixer 20 operate itself as well as the necessary dosing or supply facilities for water and additives. The purpose to be provided lines and pumps are not shown in the drawing, as well as possibly to be provided tanks for additives that are added in the ready-to-use treatment of the concrete mix with.

Ein wesentlicher Aspekt der Erfindung besteht darin, dass das vom Transportfahrzeug angelieferte Bindemittel/Zuschlaggemisch noch nicht abbindefertig ist, weshalb es beliebig lange transportiert werden kann, ohne dass die Verarbeitungsqualität des Gemischs durch zwischenzeitliches Abbinden während des Transports beeinträchtigt worden ist. Zudem ist an der Baustelle dder Trockenbaustoff ideal homogenisiert, so dass eine gleich bleibend hohe Qualität des verarbeitungsfertigen Baustoffes über den gesamten Abgabezeitraum gewährleistet ist. Weiterhin kann die Mischung besser auf die Verarbeitungsbedürfnisse an der Baustelle abgestellt werden. Vorzugsweise ist an dem Transportfahrzeug auch ein Behälter und eine Zudosiereinrichtung für den Beschleuniger vorgesehen. Zudem ist es durch die neue Technologie möglich, den Beton an mehreren Baustellen in kleinen Teil-Chargen anzuliefern, die dann vor Ort abbindefertig angemischt werden.An essential aspect of the invention is that the binder / aggregate mixture delivered by the transport vehicle is not yet ready for setting, which is why it can be transported as long as desired without the quality of processing of the mixture being adversely affected by intermediate setting during transport. In addition, the dry building material is ideally homogenized at the construction site, so that a consistently high quality of the ready-to-use building material is ensured over the entire delivery period. Furthermore, the mixture can be better tailored to the processing needs at the construction site. Preferably, a container and a Zudosiereinrichtung for the accelerator is provided on the transport vehicle. In addition, the new technology makes it possible to deliver the concrete at several construction sites in small partial batches, which are then mixed ready-to-use on site.

Der Rohrmischer ist in Fig. 1 in seiner Benutzungsstellung dargestellt, in welcher er parallel zur Längsachse des Fahrzeugs angeordnet werden kann. Der Rohrmischer 20 ist vorzugsweise auf einer Drehachse 24 schwenkbar auf dem Transportfahrzeug 10 gehalten, so dass das Misch- und Förderrohr 25 je nach Bedarf in eine günstige Position geschwenkt werden kann. Weiterhin ist vorzugsweise eine Höhenjustage 26 mit einer Kurbel vorgesehen, mit welcher das Auslassende 28 des Misch- und Förderrohrs 25 höher oder niedriger positioniert werden kann. In einer neutralen Stellung ist das Misch- und Förderrohr 25 im Wesentlichen horizontal ausgerichtet.The pipe mixer is in Fig. 1 shown in its position of use, in which it can be arranged parallel to the longitudinal axis of the vehicle. The tube mixer 20 is preferably held on a rotation axis 24 pivotally mounted on the transport vehicle 10, so that the mixing and conveying pipe 25 can be pivoted as needed in a favorable position. Furthermore, a height adjustment 26 is preferably provided with a crank, with which the outlet end 28 of the mixing and conveying pipe 25 can be positioned higher or lower. In a neutral position, the mixing and conveying pipe 25 is aligned substantially horizontally.

Der Rohrmischer 20 enthält weiterhin einen Antrieb 30, der an einem Mischereinlaufrohr 32 angeflanscht ist. Das Mischereinlaufrohr 32 weist an seiner Oberseite einen Trichter 34 auf, über welchen das Trockenbetongemisch aus der Mischtrommel 14 in den Rohmischer 20 überführt werden kann. Optional lässt sich noch eine Schütte 36 mit dem Auslass 18 der Mischtrommel 14 verbinden. Der Motor kann auch durch einen Hydraulik- oder Pneumatikantrieb gebildet sein.The pipe mixer 20 further includes a drive 30 which is connected to a mixer inlet pipe 32nd is flanged. The mixer inlet pipe 32 has on its upper side a funnel 34, via which the dry concrete mixture from the mixing drum 14 can be transferred into the raw mixer 20. Optionally, a chute 36 can still be connected to the outlet 18 of the mixing drum 14. The engine may also be formed by a hydraulic or pneumatic drive.

Das Misch- und Förderrohr ist über ein Gelenk 38 mit dem Mischereinlaufrohr 32 verbunden (Fig. 3) , so dass das längliche Misch- und Förderrohr 25 aus einer Betriebsposition A parallel zur Längsachse des Fahrzeugs (Fig. 1 und 2) in eine Transportstellung B schwenkbar ist, in welcher das Misch- und Förderrohr derart relativ zur Längsachse des Fahrzeugs 10 geneigt ist, dass der Rohrmischer 20 nicht hinten über das Fahrzeugende hinaus steht.The mixing and conveying pipe is connected via a joint 38 with the mixer inlet pipe 32 ( Fig. 3 ), so that the elongated mixing and conveying pipe 25 from an operating position A parallel to the longitudinal axis of the vehicle ( Fig. 1 and 2 ) is pivotable in a transport position B, in which the mixing and conveying pipe is inclined relative to the longitudinal axis of the vehicle 10 so that the pipe mixer 20 does not stand behind the vehicle end out.

Die Verschwenkung erfolgt vorzugsweise über eine vertikale Achse, kann jedoch auch über eine horizontale oder geneigte Achse erfolgen.The pivoting is preferably via a vertical axis, but can also take place via a horizontal or inclined axis.

Hierfür ist in dem Rohrmischer eine lösbare Kupplung für die in der länglichen Misch- und Förderrohr 25 angeordnete Misch- und Förderschnecke vorgesehen, über welche sich diese an die Antriebswelle am Auslassende des Mischereinlaufrohrs 32 anflanschen lässt.For this purpose, a releasable coupling for the mixing and conveying screw arranged in the elongated mixing and conveying pipe 25 is provided in the pipe mixer, via which it can be flanged to the drive shaft at the outlet end of the mixer inlet pipe 32.

Der Rohrmischer 20 ist vorzugsweise, aber nicht unbedingt lösbar an dem Fahrzeug 10 gehalten.The tube mixer 20 is preferably but not necessarily releasably held to the vehicle 10.

Das Mischereinlaufrohr dient dazu, das Gemisch aus dem Mischbehälter 14 mit Wasser und gegebenenfalls Zuschlagsstoffen in Verbindung zu bringen, wobei die intensiver Durchmischung dann in dem Misch- und Förderrohr 25 erfolgt.The mixer inlet pipe serves to bring the mixture from the mixing tank 14 into contact with water and optionally additives, the intensive mixing then taking place in the mixing and conveying pipe 25.

Claims (9)

  1. Transport vehicle for delivering a dry building material, having a mixing device comprising a mixing container (14) to receive the mixture,
    which vehicle (10) has an in-line mixer (20) in the region of the rear of the vehicle in order to prepare and convey a ready-for-use mixture, the input of which in-line mixer can be connected to the output of the mixing container (14), which in-line mixer (20) has an elongate mixing and conveying pipe (25) which is disposed on the vehicle (10) so as to be able to pivot about an axis transverse to the longitudinal direction of the vehicle, wherein the drive (30) of the in-line mixer (20) is fixed in a rigid, i.e. non-rotatable, manner on the transport vehicle (10) and has a releasable coupling for a mixing and conveying screw disposed in the pivotable mixing and conveying pipe (25), via which coupling the mixing and conveying screw can be flange-mounted onto a drive shaft of the in-line mixer (20) at the outlet end of a mixer inlet pipe (32), characterised in that at least a part of the shaft of the in-line mixer (20) is disposed in an axially displaceable manner in the in-line mixer (20) in such a way that the shaft can easily be separated from the drive shaft in the conveying and mixing pipe (25).
  2. Transport vehicle as claimed in claim 1, in which the conveying and mixing pipe (25) is pivotably articulated about a vertical axis on a mixing housing of the in-line mixer (20).
  3. Transport vehicle as claimed in claim 1 or 2, in which the mixing housing, at least in a usage position, is disposed in parallel with the vehicle axis and, in a travel position, is disposed pivoted by an angle of more than 20 degrees with respect to the longitudinal axis of the vehicle.
  4. Transport vehicle as claimed in any one of the preceding claims, in which the in-line mixer (20) is held on the transport vehicle (10) so as to be able to pivot about a vertical pivot axis (24).
  5. Transport vehicle as claimed in any one of the preceding claims, in which the drive (30) of the in-line mixer (20) is electric or hydraulic.
  6. Transport vehicle as claimed in any one of the preceding claims, in which at least one water supply is disposed on the in-line mixer (20).
  7. Transport vehicle as claimed in any one of the preceding claims, in which the in-line mixer (20) is releasably held on the transport vehicle (10).
  8. Transport vehicle as claimed in any one of the preceding claims, in which at least one water tank (22) is disposed on the vehicle (10) and is connected to the in-line mixer (20) in the region of a mixer inlet pipe (32).
  9. Transport vehicle as claimed in any one of the preceding claims, in which at least one tank for additional materials is disposed on the vehicle (10) and is connected to the in-line mixer (20).
EP20090165630 2009-04-08 2009-07-16 Transport vehicle for delivering a binder/aggregate mixture Active EP2239120B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910016518 DE102009016518A1 (en) 2009-04-08 2009-04-08 Transport vehicle for delivery of a binder / aggregate mixture

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Publication Number Publication Date
EP2239120A2 EP2239120A2 (en) 2010-10-13
EP2239120A3 EP2239120A3 (en) 2012-10-03
EP2239120B1 true EP2239120B1 (en) 2014-04-30

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EP20090165630 Active EP2239120B1 (en) 2009-04-08 2009-07-16 Transport vehicle for delivering a binder/aggregate mixture

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DE (1) DE102009016518A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2639030A1 (en) * 2012-03-14 2013-09-18 Cementos Portland Valderribas, S.A. Improved system for manufacturing, manipulating and laying up concrete
CN103552853B (en) * 2013-11-01 2016-08-17 双鸭山市三诚机械制造有限公司 A kind of self-propelled cylinder storage cash car
NO2744831T3 (en) * 2015-03-30 2018-05-05
CN109248603B (en) * 2018-11-15 2020-08-21 燕山大学 Intelligent tilting scraper drum mixer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354127A (en) * 1990-04-10 1994-10-11 William Del Zotto Segmented mixing auger
JP3203741B2 (en) * 1992-01-31 2001-08-27 宇部興産株式会社 Truck for manufacturing cement kneaded material
AUPM963194A0 (en) * 1994-11-24 1994-12-15 Cairns, Robert William Mobile concrete mixer
WO2004078438A1 (en) * 2003-03-06 2004-09-16 Rombold & Gfröhrer GmbH & Co. KG Transport vehicle and process for delivering a binder/aggregate mixture
ITBZ20030020A1 (en) * 2003-04-15 2004-10-16 Francesco Bezzi PROCESS AND EQUIPMENT FOR THE PRODUCTION OF CELLULAR CONCRETE OR SPECIAL CONGLOMERATES.
GB0606981D0 (en) * 2006-04-07 2006-05-17 Hymix Ltd Mixer truck

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Publication number Publication date
EP2239120A2 (en) 2010-10-13
DE102009016518A1 (en) 2010-10-14
EP2239120A3 (en) 2012-10-03

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