EP0105107A2 - Mixer - Google Patents

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Publication number
EP0105107A2
EP0105107A2 EP83107090A EP83107090A EP0105107A2 EP 0105107 A2 EP0105107 A2 EP 0105107A2 EP 83107090 A EP83107090 A EP 83107090A EP 83107090 A EP83107090 A EP 83107090A EP 0105107 A2 EP0105107 A2 EP 0105107A2
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EP
European Patent Office
Prior art keywords
mixer
opening
mixing
conveyor
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83107090A
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German (de)
French (fr)
Other versions
EP0105107B1 (en
EP0105107A3 (en
Inventor
Paul Mathis
Max Zimmer
Franz Mathis
Bernhard Mathis
Udo Dilger
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.)
m-tec mathis technik GmbH
Original Assignee
m-tec mathis technik GmbH
Mathis System Technik GmbH
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Application filed by m-tec mathis technik GmbH, Mathis System Technik GmbH filed Critical m-tec mathis technik GmbH
Priority to AT83107090T priority Critical patent/ATE28408T1/en
Publication of EP0105107A2 publication Critical patent/EP0105107A2/en
Publication of EP0105107A3 publication Critical patent/EP0105107A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • 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
    • 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
    • B01F35/71—Feed mechanisms

Definitions

  • the invention relates to a mixing device of preferably dry.
  • Mixtures in particular based on mineral, organic and / or plastic, such as dry mortar, concrete, feed, fertilizer, food or the like, with metering devices, control devices and transfer devices for loading transport vehicles.
  • Such mixing devices are known.
  • Mixing systems for ready-mixed mortar in particular, work with stocks in the area of finished goods, because for each type of mortar that has to be loaded loosely, a finished goods silo must be provided within the device. This allows different products to be mixed one after the other and temporarily stored in these finished goods silos.
  • the associated metering / mixing and transfer devices generally have to be cleaned between each product changeover.
  • the intermediate storage in silos also requires additional mechanical effort in the area of these silos, e.g. B. in addition, an elevator for transporting up and from each silo a conveyor, for example a screw conveyor or the like.
  • the intermediate storage in storage silos has above all Dry building material mixtures, and in particular in the case of plasters and mortars, has the sensitive disadvantage that the risk of segregation is increased because with each transfer of such a mixture, the material parts occurring in the mixture with very different grain sizes can be separated from one another. Furthermore, these intermediate storage containers each require measuring or display devices which determine the respective loading quantity precisely regardless of the previous preparation of the mixture.
  • the invention is therefore based on the object of creating a mixing device of the type mentioned at the outset, with which the mechanical outlay can be considerably reduced, while vehicles should be able to load different building material mixtures at any time in any or almost any order.
  • the solution to this problem consists essentially in the fact that the mixing device is provided without an intermediate store for the finished mixtures and with a mixer which can be emptied without residues and with self-cleaning transport devices from the mixer to the transfer device or devices.
  • the batch mixer no longer contains any residues after each emptying, so that immediately after its emptying it can produce a modified mixture which is not adulterated by a previous mixture.
  • the discharge opening of the mixer can be arranged above or in a funnel with a closure for decelerated, also residue-free emptying.
  • a mechanical or pneumatic conveyor preferably a conveyor belt in dustproof form or an air conveyor trough or the like, can be provided under the funnel.
  • An expedient embodiment of the invention can consist in that a conveyor screw is provided as the conveyor, parallel to which a lower-lying cleaning screw is arranged, which during cleaning in reverse is drivable in the opposite direction and then opens over a waste container or the like.
  • the normal screw conveyor can thus bring the mixed good to its destination.
  • certain residues cannot be completely avoided when changing the mixing ratios in the area of screw conveyors, such a residue can also be eliminated by reversing the conveying direction with the aid of the cleaning screw, so that after a short time, no components from a previous mixture are present in the area of this conveyor there are more.
  • the conveying means can be drivable in both directions of extension and act on at least two transfer devices. As a result, the entire mixing device can be used even more effectively because a second vehicle can already be brought into the loading position while a vehicle is being loaded.
  • an approximately horizontally arranged, drum-shaped mixer can be used as the mixer Batch mixer may be provided, the lower wall area of which can be opened completely for emptying, the opening angle being greater than the slope angle of the material to be mixed. If the bottom wall of such a batch mixer is opened or removed for opening, the entire mix slips out, because it cannot and cannot partially hold due to the angular relationships mentioned. If the opening angle of the batch mixer is greater than the slope angle of the residual mix that remains between the wall and mixing blades of the mixer during the mixing process, the safety of the residue-free emptying is particularly high.
  • An expedient embodiment of the invention can consist in that the lower wall area of the mixer can be closed by at least one flap or the like, preferably by two flaps which can be swung away from one another.
  • This allows a very simple opening downwards, through which the majority of the mixer contents are released downwards. Even the left-hand remnants of the material to be mixed cannot remain in the drum-shaped mixer, since they cannot form a sufficiently stable slope.
  • the lower opening area can comprise about a third of the entire mixer circumference and is in particular arranged in the middle. The lower wall area of the mixer, which does not belong to the opening and is close to the opening, is then already so steep that a dry mixture cannot remain there even in small residues.
  • the hinge or hinges of the lower opening flaps are expediently on the outside of the jacket of the mixer and the corresponding fittings on the outside of those forming the lower part of the mixer wall Opening flaps attached so that there are no projections or the like on the inside of the mixer, to which small residues of mixed material could possibly stick.
  • the inside of the opening flaps can be flush with the inside of the mixer wall.
  • the flap or the flaps can have the same radius of curvature and, in the closed position, the same center of curvature as the rest of the container wall, so that no irregularities occur in the interior of the batch mixer during the mixing process, which could adversely affect the mixing result.
  • the lower opening can extend up to the end walls of the mixer and these end walls can form the front or rear boundary of the lower opening. As a result, the formation of an edge on which the mixed material could remain may also be avoided in the end regions of the mixer.
  • a mixing device designated as a whole by 1, contains in its interior metering devices 2, which feed various mixture components in the required quantities from corresponding containers with the interposition of control devices 3 and funnels 4 to a mixer 5 to be described in more detail.
  • this mixing device 1 It is characteristic of this mixing device 1 that no intermediate containers are provided, into which a finished mixture can be introduced until the switch to a different mixture with the associated cleaning of the various units is worthwhile. Rather, the mixer 5 is designed as a horizontally arranged drum-shaped batch mixer that can be emptied without residue, the lower wall area of which, according to FIGS. 2 and 3, can be completely opened for emptying, the opening angle being greater than the slope angle of the mixed material. Each time the material is emptied, the mixture is left behind in this mixer, so that a different composition of a mixture can now also be introduced and mixed. This makes it practically possible to produce a different mixture for each mixture after each batch, simply by changing the metering and control devices accordingly. In this way, intermediate containers for the intermediate storage of various mixtures are unnecessary.
  • the opening angle of the batch mixer i is greater than the slope angle of the residual mixture 6, which may otherwise remain between the wall 7 and the mixing blades 8 of the mixer 5 during the mixing process.
  • Fig. 1 it is also indicated that the emptying opening 9 of the mixer 5 is arranged above or in a funnel 10 with a closure 11 for decelerated emptying and that a conveyor belt 12, preferably a conveyor belt in dustproof form, is provided under the funnel 10.
  • the casing 13 of the conveyor belt 12 can be seen in a schematic arrangement in FIG. 1.
  • the funnel 10 can hold the contents of the batch mixer 5 in its interior, so that this mixed material can be slowly transferred to the conveyor belt 12.
  • the conveyor belt 12 can be driven in its two extension directions, so that two transfer devices 14, 18 can be acted upon.
  • Fig. 1 you can see in the left part of a direct transition from the conveyor belt 12 in a transfer device 14 with filling nozzle 15 to a vehicle 16, while the right part of the conveyor belt 12 opens over another conveyor belt 17, which in turn can feed two places, namely a second transfer device 18 with a filling nozzle 15 for a vehicle 19 or, for special cases, a transfer station 20 with which the mixed material can be transported further.
  • the lower wall area of the mixer 5 can be closed with at least one flap, closure or the like, in the exemplary embodiment with two flaps 21 which can be pivoted away from one another.
  • the lower opening area takes up about a third of the entire mixer circumference and is arranged in the center. It can clearly be seen that in the direct connection to the flaps 21 the cylindrical wall 7 of the mixer 5 is already so steep that dry mix can no longer attach and hold here when the flaps 21 are opened.
  • the mixers, which previously had openings in the lower area generally have openings so small that residual mixture can still remain everywhere, which would then have to be discharged with special tools or with compressed air.
  • the hinges 22 running along the opening edges can advantageously be designed as a stiffener of the mixer 5 or vice versa, stiffeners can be arranged in this area, which are at the same time for receiving or formation of the hinges 22 can be used.
  • the one or more hinges 22 are attached to the outside of the jacket 7 of the mixer 5 and the corresponding fittings 23 to the outside of the opening flaps 21 forming the lower part of the mixer wall. If it is expedient for the stiffening of the mixer 5, in particular in the area of its large opening 9, the hinges 22 may also have corresponding counterparts on the mixer 5 itself for the fittings 23.
  • the opening flaps 21 are designed such that they are flush with the inside of the mixer wall 7 in the closed position with their inside. As a continuation of the mixing head 7, they have the same radius of curvature and, in the closed position, the same center of curvature as the rest of the mixer wall.
  • a batch mixer 5 has been formed by relatively simple measures, which can be emptied without residues due to its large opening alone, without special additional tools, which in itself is a great advantage for different applications.
  • the entire mixing device 1 thus becomes simpler and cheaper.
  • FIGS. 4 and 5 show an embodiment of the mixing device 1, in which, below the hopper 10, into which the mixer 5 is emptied, a conveyor screw 25 is also arranged as a conveying means within a dustproof housing 26, which in the exemplary embodiment has two transfer devices 14 can operate 16 and 19 for two vehicles.
  • a screw conveyor can be used in this area of the device 1.
  • a cleaning screw 27 is located directly below it in a corresponding conical area parallel to this screw conveyor 25 28 of the housing 26 arranged.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Confectionery (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Drying Of Solid Materials (AREA)
  • Detergent Compositions (AREA)

Abstract

Mixing apparatus is provided for the production of mixtures of particulate solids and in particular, for the production of various mortar mixtures. The apparatus includes metering means, control means and transfer means for metering out and introducing predetermined quantities of components into a mixer and thereupon, after mixing, delivering the mixed product into means for loading transportation vehicles. The apparatus has no intermediate containers for storing various mixtures of building materials. A mixer is provided which can be emptied residue-free. A self-cleaning conveying system from the mixer to each transfer device is further provided. The lower wall zone of the mixer can be completely opened for residue-free emptying, the opening angle being greater than the angle of slide of the mixing material or residues thereof in the mixer. Such an opening prevents appreciable residues from being left in the mixer and from contaminating subsequent mixtures.

Description

Die Erfindung betrifft eine Mischvorrichtung von vorzugsweise trockenen.Mischungen insbesondere auf mineralischer, organischer und/oder Kunststoffbasis wie Trockenmörtel, Beton, Futter-, Düngemittel, Lebensmittel od. dgl. mit Dosiereinrichtungen, Steuereinrichtungen und übergabevorrichtungen zum Beladen von Transportfahrzeugen.The invention relates to a mixing device of preferably dry. Mixtures, in particular based on mineral, organic and / or plastic, such as dry mortar, concrete, feed, fertilizer, food or the like, with metering devices, control devices and transfer devices for loading transport vehicles.

Derartige Mischvorrichtungen sind bekannt. Vor allem Mischanlagen für Fertigmörtel arbeiten dabei mit einer Vorratshaltung im Fertiggutbereich, weil für jede Mörtelsorte, die lose verladen werden muß ein Fertiggutsilo innerhalb der Vorrichtung vorzusehen ist. Dies erlaubt es, nacheinander verschiedene Produkte zu mischen und jeweils in diesen Fertiggutsilos zwischenzulagern. Zwischen jeder Produktumstellung müssen die zugehörigen Dosier-Misch- und übergabevorrichtungen in der Regel gereinigt werden. Die Zwischenlagerung in Silos erfordert auch im Bereich dieser Silos zusätzlichen maschinellen Aufwand, z. B. zusätzlich einen Elevator zum Hochtransportieren und von jedem Silo aus eine Fördereinrichtung, beispielsweise eine Transportschnecke od. dgl. zu einer Übergabevorrichtung zum Beladen von Fahrzeugen-Die Zwischenlagerung in Vorratssilos hat vor allem bei trockenen Baustoffmischungen und insbesondere bei Putzen und Mörteln den empfindlichen Nachteil, daß die Entmischungsgefahr vergrößert wird, weil bei jedem Umfüllen eines solchen Mischgutes die in sehr unterschiedlicher Körnung innerhalb der Mischung vorkommenden Materialteile voneinander getrennt werden können. Ferner benötigen diese Zwischenlagerbehälter jeweils Meß- oder Anzeigevorrichtungen, die unabhängig von der vorangegangenen Herstellung der Mischung die jeweilige Verlademenge genau bestimmen.Such mixing devices are known. Mixing systems for ready-mixed mortar, in particular, work with stocks in the area of finished goods, because for each type of mortar that has to be loaded loosely, a finished goods silo must be provided within the device. This allows different products to be mixed one after the other and temporarily stored in these finished goods silos. The associated metering / mixing and transfer devices generally have to be cleaned between each product changeover. The intermediate storage in silos also requires additional mechanical effort in the area of these silos, e.g. B. in addition, an elevator for transporting up and from each silo a conveyor, for example a screw conveyor or the like. To a transfer device for loading vehicles-The intermediate storage in storage silos has above all Dry building material mixtures, and in particular in the case of plasters and mortars, has the sensitive disadvantage that the risk of segregation is increased because with each transfer of such a mixture, the material parts occurring in the mixture with very different grain sizes can be separated from one another. Furthermore, these intermediate storage containers each require measuring or display devices which determine the respective loading quantity precisely regardless of the previous preparation of the mixture.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Mischvorrichtung der eingangs erwähnten Art zu schaffen, mit der der maschinelle Aufwand erheblich vermindert werden kann, während dennoch in beliebiger oder nahezu beliebiger Reihenfolge Fahrzeuge unterschiedliche Baustoffmischungen jeder Zeit laden können sollen.The invention is therefore based on the object of creating a mixing device of the type mentioned at the outset, with which the mechanical outlay can be considerably reduced, while vehicles should be able to load different building material mixtures at any time in any or almost any order.

Die Lösung dieser Aufgabe besteht im wesentlichen darin, daß die Mischvorrichtung ohne Zwischenlager für die fertigen Mischungen und mit einem rückstandfrei-entleerbaren Mischer sowie mit selbstreinigenden Transporteinrichtungen von dem Mischer zu der oder den übergabevorrichtungen versehen ist.The solution to this problem consists essentially in the fact that the mixing device is provided without an intermediate store for the finished mixtures and with a mixer which can be emptied without residues and with self-cleaning transport devices from the mixer to the transfer device or devices.

Dadurch wird erreicht, daß der Chargenmischer nach jeder Entleerung keinerlei Rückstände mehr enthält, so daß er im unmittelbaren Anschluß an seine Entleerung eine abgewandelte Mischung herstellen kann, die nicht durch eine vorangegangene Mischung verfälscht wird. Das gleiche gilt für die Transporteinrichtungen vom Mischer zu den übergabevorrichtungen, so daß die gesamte Mischvorrichtung je nach Bedarf ein ankommendes Fahrzeug mit einer gewünschten Produktmischung beladen kann, ohne dass Zwischenbehälter benötigt werden. Dadurch entfallen nicht nur diese Zwischenbehälter, sondern auch die Beschickungs- und Entleerungseinrichtungen und die Mengenmeßvorrichtungen dieser Zwischenbehälter, so daß die gesamte Mischvorrichtung oder Mischanlage eine wesentlich geringere Investition erforderlich macht, weniger Wartungsaufwand benötigt und kürzere Transportwege mit geringerer Antriebsenergie und entsprechend geringerem Verschleiß hat. Dabei ist gegenüber einer Mischvorrichtung mit Zwischenbehältern sogar noch der Vorteil gegeben, daß jede Produktmischung gewissermaßen sofort zur Verfügung gestellt werden kann, während im Falle einer Anlage mit Zwischenbehältern unter Umständen ein solcher Zwischenbehälter gerade entleert sein kann und die Anlage eine andere Mischung herstellt, so daß manche Produkte gegebenenfalls nicht immer sofort zur Verfügung stehen.It is thereby achieved that the batch mixer no longer contains any residues after each emptying, so that immediately after its emptying it can produce a modified mixture which is not adulterated by a previous mixture. The same applies to the transport devices from the mixer to the transfer devices, so that the entire mixing device can load an incoming vehicle with a desired product mixture as required, without the need for intermediate containers. This eliminates not only these intermediate containers, but also the loading and emptying devices and the quantity measuring devices of these intermediate containers, so that the entire mixing device or mixing system requires a significantly lower investment, requires less maintenance and has shorter transport routes with lower drive energy and correspondingly less wear and tear. Compared to a mixing device with intermediate containers, there is even the advantage that any product mixture can be made available immediately, while in the case of a system with intermediate containers such an intermediate container may just be emptied and the system produces another mixture, so that some products may not always be available immediately.

In überraschender Weise wird also auf eine Zwischenlagerung der fertigen Mischung, die-bisher bei Mischanlagen für unterschiedliche Produkte für unbedingt notwendig gehalten wurde, verzichtet. Entsprechend.verringert ist auch die Gefahr von Entmischungen der jeweils hergestellten Baustoffmischung.Surprisingly, intermediate storage of the finished mixture, which was previously considered to be absolutely necessary for mixing systems for different products, is therefore dispensed with. The risk of segregation of the building material mixture produced in each case is correspondingly reduced.

Die Entleeröffnung des Mischers kann über oder in einem Trichter mit Verschluß zum abgebremsten, ebenfalls rückstandfreien Entleeren angeordnet sein. Unter dem Trichter kann ein mechanischer oder pneumatischer Förderer, vorzugsweise ein Förderband in staubdichter Form oder eine Luftförderrinne od. dgl. vorgesehen sein.The discharge opening of the mixer can be arranged above or in a funnel with a closure for decelerated, also residue-free emptying. A mechanical or pneumatic conveyor, preferably a conveyor belt in dustproof form or an air conveyor trough or the like, can be provided under the funnel.

Eine zweckmäßige Ausführungsform der Erfindung kann darin bestehen, daß als Förderer eine Förderschnecke vorgesehen ist, parallel zu welcher eine tiefer liegende Reinigungsschnecke angeordnet ist, die bei der Reinigung in umgekehrter Richtung antreibbar ist und dann über einem Abfallbehälter od. dgl. mündet. Bei normaler Beförderung kann die normale Förderschnecke somit das gemischte Gut zu seinem Bestimmungsort bringen. Da jedoch beim Wechsel der Mischungsverhältnisse im Bereich von Förderschnecken gewisse Rückstände nicht ganz zu vermeiden sind, kann durch umgekehrte Förderrichtung mit Hilfe der Reinigungsschnecke auch ein solcher Rückstand beseitigt werden, so daß nach kurzer Zeit auch im Bereich dieses Fördermittels keine von einer vorhergehenden Mischung stammenden Bestandteile mehr vorhanden sind.An expedient embodiment of the invention can consist in that a conveyor screw is provided as the conveyor, parallel to which a lower-lying cleaning screw is arranged, which during cleaning in reverse is drivable in the opposite direction and then opens over a waste container or the like. With normal transportation, the normal screw conveyor can thus bring the mixed good to its destination. However, since certain residues cannot be completely avoided when changing the mixing ratios in the area of screw conveyors, such a residue can also be eliminated by reversing the conveying direction with the aid of the cleaning screw, so that after a short time, no components from a previous mixture are present in the area of this conveyor there are more.

Das Fördermittel kann in beide Erstreckungsrichtungen antreibbar sein und wenigstens zwei übergabevorrichtungen beaufschlagen. Dadurch kann die gesamte Mischvorrichtung noch effektiver benutzt werden, weil während der Beladung eines Fahrzeuges bereits ein zweites Fahrzeug in Ladeposition gebracht werden kann.The conveying means can be drivable in both directions of extension and act on at least two transfer devices. As a result, the entire mixing device can be used even more effectively because a second vehicle can already be brought into the loading position while a vehicle is being loaded.

Ein wesentlicher Teil der Erfindung ist in dem rückstandfrei entleerbaren Mischer zu sehen, daß dieser ein besonders schnelles Umschalten von einer Produktmischung auf die andere erlaubt, ohne daß Zwischenbehälter notwendig sind. Praktisch kann schon nach einer Charge, da diese ohne Rückstände aus dem Mischer entfernt wird, eine andere Mischung hergestellt werden. Dieser Vorteil des Mischers ist jedoch auch in anderen Anwendungen denkbar, so daß die Ausbildung des Mischers, die die rückstandfreie Entleerung in besonders vorteilhafter und einfacher Weise ermöglicht, gleichzeitig als Erfindung von eigener schutzwürdiger Bedeutung angesehen wird. Um zu erreichen, daß der Mischer rückstandfrei entleerbar ist, ohne daß dazu besondere Blas-, Schabe- od. dgl. Einrichtungen im Mischer vorhanden sein müssen, kann als Mischer ein etwa horizontal angeordneter, trommelförmiger Chargenmischer vorgesehen sein, dessen unterer Wandungsbereich für die Entleerung vollständig öffenbar ist, wobei der Öffnungswinkel größer als der Böschungswinkel des Mischgutes ist. Wird bei einem derartigen Chargenmischer die untere Wandung geöffnet bzw. zum Öffnen entfernt, rutscht das gesamte Mischgut heraus, da es sich aufgrund der erwähnten Winkelverhältnisse nicht und auch nicht teilweise halten kann. Wird der Öffnungswinkel des Chargenmischers größer als der Böschungswinkel des Restmischgutes, welches zwischen der Wandung und Mischflügeln des Mischers während des Mischvorganges liegen bleibt, gewählt, ist die Sicherheit der rückstandfreien Entleerung besonders groß.An essential part of the invention can be seen in the mixer, which can be emptied without residues, that this allows a particularly rapid changeover from one product mixture to the other, without the need for intermediate containers. In practice, another batch can be made after just one batch, since it is removed from the mixer without residues. However, this advantage of the mixer is also conceivable in other applications, so that the design of the mixer, which enables residue-free emptying in a particularly advantageous and simple manner, is simultaneously regarded as an invention of its own worthy protection. In order to ensure that the mixer can be emptied without residues, without the need for special blowing, scraping or similar devices in the mixer, an approximately horizontally arranged, drum-shaped mixer can be used as the mixer Batch mixer may be provided, the lower wall area of which can be opened completely for emptying, the opening angle being greater than the slope angle of the material to be mixed. If the bottom wall of such a batch mixer is opened or removed for opening, the entire mix slips out, because it cannot and cannot partially hold due to the angular relationships mentioned. If the opening angle of the batch mixer is greater than the slope angle of the residual mix that remains between the wall and mixing blades of the mixer during the mixing process, the safety of the residue-free emptying is particularly high.

Eine zweckmäßige Ausführungsform der Erfindung kann darin bestehen, daß der untere Wandungsbereich des Mischers von wenigstens einer Klappe od, dgl. Verschluß, vorzugsweise von zwei voneinander_wegschwenkbaren Klappen verschließbar ist. Dies erlaubt eine sehr einfache Öffnung nach unten, durch die zunächst einmal der größte Teil des Mischer-Inhaltes nach unten freigegeben wird. Auch die seitlichen Reste des Mischgutes können sich aber in dem trommelförmigen Mischer nicht halten,-da sie keine genügend stabile Böschung bilden können. Beispielsweise kann der untere öffnungsbereich etwa ein Drittel des gesamten Mischerumfanges umfassen und ist dabei insbesondere mittig angeordnet. Der nicht zur Öffnung gehörende untere, der öffnung nahe Wandbereich des Mischers ist dann bereits so steil, daß sich eine Trockenmischung auch in kleinen Resten dort nicht halten kann.An expedient embodiment of the invention can consist in that the lower wall area of the mixer can be closed by at least one flap or the like, preferably by two flaps which can be swung away from one another. This allows a very simple opening downwards, through which the majority of the mixer contents are released downwards. Even the left-hand remnants of the material to be mixed cannot remain in the drum-shaped mixer, since they cannot form a sufficiently stable slope. For example, the lower opening area can comprise about a third of the entire mixer circumference and is in particular arranged in the middle. The lower wall area of the mixer, which does not belong to the opening and is close to the opening, is then already so steep that a dry mixture cannot remain there even in small residues.

Das oder die Scharniere der unteren Öffnungsklappen sind zweckmäßigerweise an der Außenseite des Mantels des Mischers und die entsprechenden Beschläge an der Außenseite der den unteren Teil der Mischerwandung bildenden Öffnungsklappen angebracht, damit im Inneren des Mischers keine Vorsprünge od. dgl. entstehen, an denen eventuell geringe Mischgutreste haften bleiben könnten. In Schließstellung können die Öffnungsklappen mit ihrer Innenseite bündig mit der Innenseite der Mischerwandung sein. Ferner kann die Klappe oder können die Klappen als Fortsetzung der Mischerwand den selben Krümmungsradius und in Schließstellung den selben Krümmungsmittelpunkt wie die übrige Behälterwand haben, so daß während des Mischvorganges keine Unregelmäßigkeiten im Inneren des Chargenmischers auftreten, die das Mischergebnis ungünstig beeinflussen könnten.The hinge or hinges of the lower opening flaps are expediently on the outside of the jacket of the mixer and the corresponding fittings on the outside of those forming the lower part of the mixer wall Opening flaps attached so that there are no projections or the like on the inside of the mixer, to which small residues of mixed material could possibly stick. In the closed position, the inside of the opening flaps can be flush with the inside of the mixer wall. Furthermore, as a continuation of the mixer wall, the flap or the flaps can have the same radius of curvature and, in the closed position, the same center of curvature as the rest of the container wall, so that no irregularities occur in the interior of the batch mixer during the mixing process, which could adversely affect the mixing result.

Die untere Öffnung kann bis zu den Stirnwänden des Mischers verlaufen und diese Stirnwände können die vordere bzw. hintere Begrenzung der unteren Öffnung bilden. Dadurch wird auch in den stirnseitigen Bereichen des Mischers das Entstehen eines Randes, auf welchem Mischgut liegen bleiben .könnte, vermieden.The lower opening can extend up to the end walls of the mixer and these end walls can form the front or rear boundary of the lower opening. As a result, the formation of an edge on which the mixed material could remain may also be avoided in the end regions of the mixer.

Insgesamt ergibt sich eine preiswerte, vom maschinellen Aufwand und somit auch vom Platzbedarf verminderte Mischvorrichtung, der ein Chargenmischer zugehört, der aufgrund seiner speziellen Ausbildung ebenfalls ohne besondere Einrichtungen rückstandfrei entleert werden kann. Somit ist die gesamte Vorrichtung und auch der Chargenmischer nach jeder Entleerung sofort bereit, auch eine abgewandelte Mischung aufzunehmen. Da die jeweils in den Chargenmischer gefüllte Menge recht genau gestimmt ist, läßt sich eine entsprechend präzise Beladung von FahrT zeugen durchführen.Overall, there is an inexpensive mixing device, which is reduced in terms of mechanical outlay and thus also of the space requirement, and which includes a batch mixer which, owing to its special design, can also be emptied without residues without special facilities. Thus, the entire device and the batch mixer are immediately ready to take up a modified mixture after each emptying. Since the quantity filled in the batch mixer is very precisely tuned, it is possible to load vehicles with corresponding precision.

Nachstehend ist die Erfindung mit ihren ihr als wesentlich zugehörenden Einzelheiten anhand der Zeichnung noch näher beschrieben. Es zeigt in schematisierter Darstellung:

  • Fig. 1 eine teilweise im Längsschnitt gehaltene Mischvorrichtung gemäß der Erfindung mit Platz für zwei oder gegebenenfalls auch drei zu beladene Fahrzeuge,
  • Fig. 2 in vergrößertem Maßstab einen Querschnitt und
  • Fig. 3 einen Längsschnitt durch den zu der Erfindung gehörenden und zusätzlich eine eigene Erfindung bildenden Chargenmischer für eine rückstandfreie Entleerung,
  • Fig. 4 eine im wesentlichen der in Fig. 1 dargestellten Mischervorrichtung entsprechende abgewandelte Ausführungsform, bei welcher unter dem Chargenmischer eine Förderschnecke mit paralleler Reinigungssdhnecke vorgesehen ist, sowie
  • Fig. 5 in vergrößertem Maßstab ein Querschnitt durch den Bereich der Förderschnecke mit der Reinigungsschnecke.
The invention is described in more detail below with its details that are essential to it, using the drawing. It shows in a schematic representation lung:
  • 1 is a partially longitudinal section mixing device according to the invention with space for two or possibly three vehicles to be loaded,
  • Fig. 2 on a larger scale a cross section and
  • 3 shows a longitudinal section through the batch mixer belonging to the invention and additionally forming its own invention for residue-free emptying,
  • Fig. 4 is a modified embodiment substantially corresponding to the mixer device shown in Fig. 1, in which a screw conveyor with a parallel cleaning nozzle is provided under the batch mixer, and
  • Fig. 5 on an enlarged scale a cross section through the area of the screw conveyor with the cleaning screw.

Eine im ganzen mit 1 bezeichnete Mischvorrichtung enthält in ihrem Inneren Dosiereinrichtungen 2, die verschiedene Mischungskomponenten in jeweils benötigten Mengen von entsprechenden Behältern unter Zwischenschaltung von Steuereinrichtungen 3 und Trichtern 4 einem noch näher zu beschreibenden Mischer 5 zuführen.A mixing device, designated as a whole by 1, contains in its interior metering devices 2, which feed various mixture components in the required quantities from corresponding containers with the interposition of control devices 3 and funnels 4 to a mixer 5 to be described in more detail.

Charakteristisch für diese Mischvorrichtung 1 ist, daß keinerlei Zwischenbehälter vorgesehen sind, in die eine fertige Mischung so lange eingebracht werden kann, bis das Umstellen auf eine andere Mischung mit den damit verbundenen Reinigungen der verschiedenen Aggregate lohnend ist. Vielmehr ist der Mischer 5 als rückstandfrei entleerbarer, horizontal angeordneter trommelförmiger Chargenmischer ausgebildet, dessen unterer Wandungsbereich gemäß den Figuren 2 und 3 für die Entleerung vollständig öffenbar ist, wobei der Öffnungswinkel größer als der Böschungswinkel des Mischgutes ist. Bei jeder Entleerung wird also ein Zurückbleiben von Mischgut in diesem Mischer vermieden, so daß nun auch eine andere Zusammensetzung einer Mischung eingebracht und gemischt werden kann. Dadurch ist es praktisch möglich, nach jeder Charge-für eine bestimmte Mischung eine andere Mischung herzustellen, indem einfach die Dosier- und Steuereinrichtungen entsprechend umgestellt werden. Auf diese Weise sind Zwischenbehälter zur Zwischenlagerung verschiedener Mischungen entbehrlich.It is characteristic of this mixing device 1 that no intermediate containers are provided, into which a finished mixture can be introduced until the switch to a different mixture with the associated cleaning of the various units is worthwhile. Rather, the mixer 5 is designed as a horizontally arranged drum-shaped batch mixer that can be emptied without residue, the lower wall area of which, according to FIGS. 2 and 3, can be completely opened for emptying, the opening angle being greater than the slope angle of the mixed material. Each time the material is emptied, the mixture is left behind in this mixer, so that a different composition of a mixture can now also be introduced and mixed. This makes it practically possible to produce a different mixture for each mixture after each batch, simply by changing the metering and control devices accordingly. In this way, intermediate containers for the intermediate storage of various mixtures are unnecessary.

Vor allem in Fig. 2 erkennt man, daß der Öffnungswinkel des Chargenmischersi größer als der Böschungswinkel des Restmischgutes 6 ist, welches andernfalls zwischen der Wandung 7 und den Mischflügeln 8 des Mischers 5 während des Mischvorganges liegen bleiben kann.Above all in Fig. 2 it can be seen that the opening angle of the batch mixer i is greater than the slope angle of the residual mixture 6, which may otherwise remain between the wall 7 and the mixing blades 8 of the mixer 5 during the mixing process.

In Fig. 1 ist noch angedeutet, daß die Entleeröffnung 9 des Mischers 5 über oder in einem Trichter 10 mit Verschluß 11 zum abgebremsten Entleeren angeordnet ist und daß unter dem Trichter 10 ein Förderband 12, vorzugsweise ein Förderband in staubdichter Form vorgesehen ist. Man erkennt in Fig. 1 in schematischer Anordnung die Ummantelung 13 des Förderbandes 12. Der Trichter 10 kann in seinem Inneren den Inhalt des Chargenmischers 5 aufnehmen, so daß dieses Mischgut langsam auf das Förderband 12 übergeleitet werden kann.In Fig. 1 it is also indicated that the emptying opening 9 of the mixer 5 is arranged above or in a funnel 10 with a closure 11 for decelerated emptying and that a conveyor belt 12, preferably a conveyor belt in dustproof form, is provided under the funnel 10. The casing 13 of the conveyor belt 12 can be seen in a schematic arrangement in FIG. 1. The funnel 10 can hold the contents of the batch mixer 5 in its interior, so that this mixed material can be slowly transferred to the conveyor belt 12.

Im Ausführungsbeispiel ist das Förderband 12 in seine beiden Erstreckungsrichtungen antreibbar, so daß zwei übergabevorrichtungen 14, 18 beaufschlagt werden können. In Fig. 1 erkennt man im linken Teil einen direkten Übergang von dem Förderband 12 in eine übergabevorrichtung 14 mit Füllrüssel 15 zu einem Fahrzeug 16, während der rechte Teil des Förderbandes 12 über einem weiteren Förderband 17 mündet, das seinerseits zwei Stellen beschicken kann, nämlich eine zweite Übergabevorrichtung 18 mit Füllrüssel 15 für ein Fahrzeug 19 oder aber für besondere Fälle eine übergabestation 20, mit der das Mischgut weitertransportiert werden kann.In the exemplary embodiment, the conveyor belt 12 can be driven in its two extension directions, so that two transfer devices 14, 18 can be acted upon. In Fig. 1 you can see in the left part of a direct transition from the conveyor belt 12 in a transfer device 14 with filling nozzle 15 to a vehicle 16, while the right part of the conveyor belt 12 opens over another conveyor belt 17, which in turn can feed two places, namely a second transfer device 18 with a filling nozzle 15 for a vehicle 19 or, for special cases, a transfer station 20 with which the mixed material can be transported further.

Der untere Wandungsbereich des Mischers 5 ist mit wenigstens einer Klappe, Verschluß od. dgl., im Ausführungsbeispiel mit zwei voneinander wegschwenkbaren Klappen 21 verschließbar. Dabei nimmt der untere öffnungsbereich etwa ein Drittel des gesamten Mischerumfanges ein und ist mittig angeordnet. Man erkennt deutlich, daß im unmittelbaren Anschluß an die Klappen 21 die zylinderförmige Wandung 7 des Mischers 5 bereits so steil ist, daß sich hier trockenes Mischgut nicht mehr ansetzen und halten kann, wenn die Klappen 21 geöffnet werden. Die bisher im unteren Bereich öffnungen aufweisenden Mischer haben dabei in der Regel so kleine Öffnungen, daß überall noch Restmischgut verbleiben kann, welches dann mit besonderen Werkzeugen oder mit Preßluft ausgetragen werden müßte.The lower wall area of the mixer 5 can be closed with at least one flap, closure or the like, in the exemplary embodiment with two flaps 21 which can be pivoted away from one another. The lower opening area takes up about a third of the entire mixer circumference and is arranged in the center. It can clearly be seen that in the direct connection to the flaps 21 the cylindrical wall 7 of the mixer 5 is already so steep that dry mix can no longer attach and hold here when the flaps 21 are opened. The mixers, which previously had openings in the lower area, generally have openings so small that residual mixture can still remain everywhere, which would then have to be discharged with special tools or with compressed air.

Um trotz dieser großen Öffnung 9 ein genügend stabiles Mischergehäuse zu erhalten, können in vorteilhafter Weise die entlang den öffnungsrändern verlaufenden Scharniere 22 als Aussteifung des Mischers 5 ausgebildet sein bzw. umgekehrt können in diesem Bereich Aussteifungen angeordnet sein, die gleichzeitig zur Aufnahme oder Ausbildung der Scharniere 22 herangezogen werden können. Dabei sind das oder die Scharniere 22 an der Außenseite des Mantels 7 des Mischers 5 und die entsprechenden Beschläge 23 an den Außenseiten der den unteren Teil der Mischerwandung bildenden Öffnungsklappen 21 angebracht. Falls es für die Aussteifung des Mischers 5 insbesondere im Bereich seiner großen Öffnung 9 zweckmäßig ist, können von den Scharnieren 22 auch den Beschlägen 23 entsprechende Gegenstücke am Mischer 5 selbst vorhanden sein.In order to obtain a sufficiently stable mixer housing in spite of this large opening 9, the hinges 22 running along the opening edges can advantageously be designed as a stiffener of the mixer 5 or vice versa, stiffeners can be arranged in this area, which are at the same time for receiving or formation of the hinges 22 can be used. The one or more hinges 22 are attached to the outside of the jacket 7 of the mixer 5 and the corresponding fittings 23 to the outside of the opening flaps 21 forming the lower part of the mixer wall. If it is expedient for the stiffening of the mixer 5, in particular in the area of its large opening 9, the hinges 22 may also have corresponding counterparts on the mixer 5 itself for the fittings 23.

Die Öffnungsklappen 21 sind so ausgebildet, daß sie in Schließstellung mit ihrer Innenseite bündig mit der Innenseite der Mischerwandung 7 sind. Dabei haben sie als Fortsetzung der Misch-erwand 7 denselben Krümmungsradius und in Schließstellung denselben Krümmungsmittelpunkt wie die übrige Mischerwand.The opening flaps 21 are designed such that they are flush with the inside of the mixer wall 7 in the closed position with their inside. As a continuation of the mixing head 7, they have the same radius of curvature and, in the closed position, the same center of curvature as the rest of the mixer wall.

In Fig. 3 erkennt man, daß die untere Öffnung 9 bis zu den Stirnwänden 24 des Mischers 5 verlaufen und diese Stirnwände 24 die vordere bzw. hintere Begrenzung der unteren Öffnung 9 bilden. Es wird also auch hier vermieden, daß ein Rand oder Absatz am übergang zu der Öffnung 9 entsteht, auf dem kleine Mengen von Mischgut liegen bleiben könnten, die die nächste Charge mit anderen Mischungsverhältnissen und -komponenten verfälschen könnten.In Fig. 3 it can be seen that the lower opening 9 extend to the end walls 24 of the mixer 5 and these end walls 24 form the front or rear boundary of the lower opening 9. It is therefore also avoided here that an edge or shoulder arises at the transition to the opening 9, on which small amounts of mixed material could remain, which could falsify the next batch with different mixing ratios and components.

Insgesamt ist durch relativ einfache Maßnahmen ein Chargenmischer 5 gebildet worden, der allein aufgrund seiner großen Öffnung ohne besondere Zusatzwerkzeuge rückstandfrei entleert werden kann, was für sich allein schon für unterschiedliche Anwendungsfälle einen großen Vorteil darstellt. Besonders vorteilhaft ist er jedoch innerhalb der Mischvorrichtung 1, weil dadurch diese Mischvorrichtung praktisch übergangslos und ohne Zwischenlagerung dennoch wirtschaftlich von einer Mischung auf eine andere umgestellt werden kann, so daß nacheinander zwei Fahrzeuge 16 und 19 mit verschiedenen Mischungen gefüllt werden können, ohne daß es der erwähnten Zwischenlagerung bedarf. Somit wird die gesamte Mischvorrichtung 1 einfacher und preiswerter.Overall, a batch mixer 5 has been formed by relatively simple measures, which can be emptied without residues due to its large opening alone, without special additional tools, which in itself is a great advantage for different applications. However, it is particularly advantageous within the mixing device 1, because this makes this mixing device tion practically seamless and without interim storage can still be economically switched from one mixture to another, so that two vehicles 16 and 19 can be filled with different mixtures in succession without the need for the aforementioned interim storage. The entire mixing device 1 thus becomes simpler and cheaper.

In den Figuren 4 und 5 ist eine Ausführungsform der Mischvorrichtung 1 dargestellt, bei welcher unterhalb des Trichters 10, in den der Mischer 5 entleert wird, als Fördermittel eine Förderschnecke 25 ebenfalls innerhalb eines staubdichten-Gehäuses 26 angeordnet ist, die im Ausführungsbeispiel zwei übergabevorrichtungen 14 für zwei Fahrzeuge 16 und 19 bedienen kann. Dadurch können in diesem Bereich der Vorrichtung 1 die Vorteile einer Förderschnecke nutzbar gemacht werden.FIGS. 4 and 5 show an embodiment of the mixing device 1, in which, below the hopper 10, into which the mixer 5 is emptied, a conveyor screw 25 is also arranged as a conveying means within a dustproof housing 26, which in the exemplary embodiment has two transfer devices 14 can operate 16 and 19 for two vehicles. As a result, the advantages of a screw conveyor can be used in this area of the device 1.

Da jedoch beim Stillsetzen einer solchen Förderschnecke insbesondere unterhalb einer solchen Förderschnecke, wo noch ein gewisser Spielraum vorhanden ist, Material eines Förder- und Mischvorganges verbleiben würde, ist in erfindungsgemäßer Weise parallel zu dieser Förderschnecke 25 unmittelbar unter ihr eine Reinigungsschnecke 27 in einem entsprechenden konischen Bereich 28 des Gehäuses 26 angeordnet.However, since material of a conveying and mixing process would remain when such a screw conveyor was stopped, in particular underneath such a screw conveyor, where there is still a certain scope, a cleaning screw 27 is located directly below it in a corresponding conical area parallel to this screw conveyor 25 28 of the housing 26 arranged.

Ist ein Fördervorgang zu einem der Fahrzeuge 16 oder 19 mit Hilfe der Schnecke 25 beendet und soll die gesamte Vorrichtung 1 auf eine andere Mischung umgestellt werden, kann nun zunächst mit Hilfe der Reinigungsschnecke 27 der in dem Gehäuse 26 befindliche Mischungsrest über Abführleitungen 29 zu einem-entsprechenden Abfallbehälter 30 befördert werden. Dieser kann gegebenenfalls sogar bewegbar ausgebildet sein, um noch in das entsprechende Fahrzeug eingefüllt zu werden.If a conveying process to one of the vehicles 16 or 19 has ended with the aid of the screw 25 and the entire device 1 is to be changed over to a different mixture, the remainder of the mixture in the housing 26 can now first be removed via the discharge lines 29 to a corresponding waste container 30 are transported. If necessary, this can even be designed to be movable so that it can still be filled into the corresponding vehicle.

Claims (14)

1.. Mischvorrichtung zur Herstellung von vorzugsweise trockenen Mischungen insbesondere auf mineralischer, organischer und/oder Kunststoffbasis wie Trockenmörtel, Beton, Futter-, Düngemittel, Lebensmittel od. dgl. mit Dosiereinrichtungen, Steuereinrichtungen und übergabevorrichtungen zum Beladen von Transportfahrzeugen, dadurch gekennzeichnet , daß die Mischvorrichtung (1) ohne Zwischenlager für die fertigen Mischungen und mit einem rückstandfrei entleerbaren Mischer (5) sowie mit selbstreinigenden Transporteinrichtungen von dem Mischer zu der oder den übergabevorrichtungen versehen ist.1 .. Mixing device for the production of preferably dry mixtures, in particular based on mineral, organic and / or plastic such as dry mortar, concrete, feed, fertilizer, food or the like. With metering devices, control devices and transfer devices for loading transport vehicles, characterized in that the Mixing device (1) without intermediate storage for the finished mixtures and with a residue-free emptying mixer (5) and with self-cleaning transport devices from the mixer to the transfer device or devices. 2. Mischvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Entleeröffnung des Mischers über oder in einem Trichter (10) mit Verschluß (11) zum abgebremsten, ebenfalls rückstandfreien Entleeren angeordnet ist, und daß unter dem Trichter (10) ein mechanischer oder pneumatischer Förderer (12), vorzugsweise ein Förderband in staubdichter Form oder eine Luftförderrinne od. dgl. vorgesehen ist.2. Mixing device according to claim 1, characterized in that the emptying opening of the mixer above or in a funnel (10) with closure (11) for braking, also residue-free emptying is arranged, and that under the funnel (10) is a mechanical or pneumatic conveyor (12), preferably a conveyor belt in a dustproof form or an air conveyor trough or the like is provided. 3. Mischvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Förderer eine Förderschnecke vorgesehen ist, parallel zu welcher eine tiefer liegende Reinigungsschnecke angeordnet ist, die bei der Reinigung vorzugsweise umgekehrter Richtung antreibbar ist und über einem Abfallbehälter od. dgl. mündet.3. Mixing device according to claim 1 or 2, characterized in that a screw conveyor is provided as a conveyor, parallel to which a deeper lying cleaning screw is arranged, which is preferably driven in the opposite direction during cleaning and opens out over a waste container or the like. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Fördermittel in beide Erstreckungsrichtungen antreibbar ist und wenigstens zwei Übergabevorrichtungen beaufschlagt.4. Device according to one of claims 1 to 3, characterized in that the conveying means can be driven in both directions of extension and acts on at least two transfer devices. 5. Mischvorrichtung insbesondere nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als Mischer ein etwa horizontal angeordneter trommelförmiger Chargenmischer vorgesehen ist, dessen unterer Wandungsbereich für die Entleerung vollständig öffenbar ist, wobei der öffnungswinkel größer als der Böschungswinkel des Mischgutes ist.5. Mixing device in particular according to one of claims 1 to 4, characterized in that an approximately horizontally arranged drum-shaped batch mixer is provided as the mixer, the lower wall area for emptying is fully openable, the opening angle being greater than the angle of repose of the material to be mixed. 6. Mischvorrichtung-nach Anspruch 5, dadurch gekennzeichnet, daß:der Öffnungswinkel des Chargenmischers größer als der Böschungswinkel des Restmischgutes ist, welches zwischen der Wandung und Mischflügeln des Mischers während des Mischvorganges liegen bleibt.6. Mixing device according to claim 5, characterized in that: the opening angle of the batch mixer is greater than the slope angle of the residual mixture which remains between the wall and mixing blades of the mixer during the mixing process. 7. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der untere Wandungsbereich des Mischers mit wenigstens einer Klappe od. dgl. Verschluß, vorzugsweise mit zwei voneinander wegschwenkbaren Klappen (21) verschließbar ist.7. Device according to one of the preceding claims, characterized in that the lower wall area of the mixer with at least one flap or the like. Closure, preferably with two hinged flaps (21) can be closed. 8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der untere Öffnungsbereich etwa ein Drittel des gesamten Mischerumfanges umfaßt und insbesondere mittig angeordnet ist.8. Device according to one of claims 1 to 7, characterized in that the lower opening area comprises about a third of the entire mixer circumference and in particular is arranged centrally. 9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das öder die Scharniere (22) der unteren Öffnungsklappen an der Außenseite des Mantels (7) des Mischers (5) und die entsprechenden Beschläge (23) an der Außenseite der den unteren Teil der Mischerwandung bildenden öffnungsklappen angebracht sind.9. Device according to one of claims 1 to 8, characterized in that the or the hinges (22) of the lower opening flaps on the outside of the jacket (7) of the mixer (5) and the corresponding fittings (23) on the outside of the opening flaps forming the lower part of the mixer wall are attached. 10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Öffnungsklappen in Schließstellung mit ihrer Innenseite bündig mit der Innenseite der Mischerwandung sind.10. Device according to one of claims 1 to 9, characterized in that the opening flaps are in the closed position with their inside flush with the inside of the mixer wall. 11. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Klappen als Fortsetzung der Mischerwand denselben.Krümmungsradius und in Schließstellung denselben Krümmungsmittelpunkt wie die übrige Mischerwand haben.11. The device according to one of claims 1 to 11, characterized in that the flaps as a continuation of the mixer wall have the same radius of curvature and in the closed position the same center of curvature as the rest of the mixer wall. 12. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet., daß die untere Öffnung bis zu den Stirnwänden des Mischers verlaufen und diese Stirnwände die vordere bzw. hintere Begrenzung der unteren Öffnung (9) bilden.12. Device according to one of claims 1 to 11, characterized in that the lower opening extend up to the end walls of the mixer and these end walls form the front or rear boundary of the lower opening (9). 13. Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die entlang den öffnungsrändern verlaufenden Scharniere als Aussteifung des Mischers (5) ausgebildet sind.13. Device according to one of claims 1 to 12, characterized in that the hinges extending along the opening edges are designed as a stiffener of the mixer (5). 14. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Reinigungsschnecke (27) unterhalb der Förderschnecke (25) in einer konischen Verengung (28) des Gehäuses (26) angeordnet ist und vorzugsweise über Förderleitungen (29) mit dem Abfallbehälter (30) verbunden ist.14. Device according to one of the preceding claims, characterized in that the cleaning screw (27) below the screw conveyor (25) is arranged in a conical narrowing (28) of the housing (26) and preferably via conveyor lines (29) with the waste container (30 ) connected is.
EP83107090A 1982-10-05 1983-07-20 Mixer Expired EP0105107B1 (en)

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AT83107090T ATE28408T1 (en) 1982-10-05 1983-07-20 MIXING DEVICE FOR MAKING MIXTURES.

Applications Claiming Priority (2)

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DE3236780 1982-10-05
DE3236780A DE3236780C2 (en) 1982-10-05 1982-10-05 Mixing and loading device for mixtures of powdery and / or granular solids

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EP0105107A2 true EP0105107A2 (en) 1984-04-11
EP0105107A3 EP0105107A3 (en) 1985-08-14
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EP (1) EP0105107B1 (en)
JP (1) JPS5966336A (en)
KR (1) KR870000082B1 (en)
AT (1) ATE28408T1 (en)
AU (1) AU555362B2 (en)
BR (1) BR8305464A (en)
CA (1) CA1235688A (en)
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ES (1) ES8404616A1 (en)
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Cited By (4)

* Cited by examiner, † Cited by third party
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EP0391494A1 (en) * 1989-04-06 1990-10-10 Mulder-Boskoop N.V. Process and apparatus for preparing a mixture, especially for mortar and other similar mixtures
DE3930954A1 (en) * 1989-09-15 1991-03-28 Herfeld Gmbh & Co Kg Dr MIXING DEVICE
CN111361007A (en) * 2020-04-30 2020-07-03 吴满意 A concrete mixing device for road construction
CN111923242A (en) * 2020-06-22 2020-11-13 苏州上建杭鑫混凝土有限公司 Recycled concrete manufacturing equipment

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337437A1 (en) * 1983-10-14 1985-05-02 Mathis System-Technik GmbH, 7844 Neuenburg BATCH MIXER
DE3424752A1 (en) * 1984-07-05 1986-01-16 Ladwein, geb. Otto, Rosemarie, 6636 Überherrn PLANT FOR MIXING AND FILLING OF FLOWABLE SUBSTANCES
SE447821B (en) * 1985-04-29 1986-12-15 Purac Ab DEVICE FOR PREPARING A CHARGE OF COMPOSITIVE MATERIAL FOR A COMPOSITION PLANT
DE3601970A1 (en) * 1986-01-23 1987-08-06 Durmersheim Baustoffwerke DEVICE FOR STORING RAW MATERIALS AND PRODUCING PRE-DRY MORTARS
US5149192A (en) * 1988-09-30 1992-09-22 Mixer Products, Inc. System for mixing cementitious construction materials
US5203628A (en) * 1988-09-30 1993-04-20 Hamm Family Partnership Portable batch mixing apparatus for cementitious construction materials
DE3913808A1 (en) * 1989-04-26 1990-10-31 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE LEVEL OF A MIXTURE OF RIESEL- AND / OR FLOWABLE MATERIAL IN A CONTAINER WITH A DRAWER
US5268111A (en) * 1992-02-03 1993-12-07 Metz Jeffrey L Concrete reclamation system with mixing agitator
ES2061364B1 (en) * 1992-07-29 1997-04-16 Hatmix S A LOADING SYSTEM FOR TRANSPORTATION SILOS OF RAW MATERIALS FOR PREPARATION OF CONCRETE AND MORTARS.
US5785419A (en) * 1995-10-10 1998-07-28 Mckelvey; Paul A. Lightweight building material and method of construction of cast-in-place structures
US5654352A (en) * 1995-05-16 1997-08-05 Maxflow Environmental Corp. Air-entraining agent and method of producing same
DE19639856C2 (en) * 1996-09-27 2001-03-15 Gert Streicher Method and device for conveying fine materials as an aggregate in granular products
US5913602A (en) * 1996-12-16 1999-06-22 Dynamic Air Inc. On-the-go mixing system
US5833863A (en) * 1997-04-21 1998-11-10 Tuboscope Vetco Int'l Inc. Concrete reclamation system
AU693067B3 (en) * 1997-07-29 1998-06-18 Siposa Sistemas E Instalaciones Para Obras, S.A. Loading system for silos with double chamber, for the preparation of mortars
DE19813867C2 (en) 1998-03-28 2000-03-23 Loedige Maschbau Gmbh Geb Device for producing solid and / or solid-liquid mixtures
KR100314283B1 (en) * 1999-06-25 2001-11-30 안태완 Weighing machine for feed packing
US6572920B1 (en) * 2000-02-03 2003-06-03 Cycle Group Limited Of Delaware Method of coating granulated material
JP4229567B2 (en) * 2000-03-28 2009-02-25 三洋電機株式会社 Secondary battery
US6582610B2 (en) 2001-06-27 2003-06-24 Varco I/P, Inc. Concrete grindings reclamation system
FI20011563A (en) * 2001-07-20 2003-01-21 Scansev Ab Oy Arrangement for the production site
US6979116B2 (en) * 2002-08-30 2005-12-27 Wastewater Solutions, Inc. Apparatus for injecting dry bulk amendments for water and soil treatment
US6929395B1 (en) 2002-12-26 2005-08-16 Jeffrey Lee Metz Methods and apparatus for reclaiming components of concrete and other slurries
US7172145B2 (en) * 2003-02-15 2007-02-06 Vm Fiber Feeder, Inc. Concrete delivery truck
WO2005005029A1 (en) * 2003-07-11 2005-01-20 Charl Marais Apparatus for the mixing of particulate materials
US20050276903A1 (en) * 2003-08-20 2005-12-15 Kraft Foods Holdings, Inc. Method and apparatus for meat product manufacturing
US7488502B2 (en) * 2003-08-20 2009-02-10 Kraft Foods Global Brands Llc Method of making processed meat products
US8172545B2 (en) * 2003-08-20 2012-05-08 Kraft Foods Global Brands Llc Method for controlling ground meat flow rates
US20050255222A1 (en) * 2003-08-20 2005-11-17 Kraft Foods Holdings, Inc. Method and apparatus for acceleration ingredient diffusion in meat
US20050255224A1 (en) * 2003-08-20 2005-11-17 Kraft Foods Holdings, Inc. Integrated continuous meat processing system
US7169421B2 (en) * 2003-08-20 2007-01-30 Kraft Foods Holdings, Inc. Method of making processed meat products
US7731998B2 (en) * 2003-08-20 2010-06-08 Kraft Foods Global Brands Llc Method for reducing protein exudate on meat product
US20050249862A1 (en) * 2003-08-20 2005-11-10 Kraft Foods Holdings, Inc. Method and apparatus for controlling texture of meat products
US7857500B2 (en) * 2003-08-20 2010-12-28 Kraft Foods Global Brands Llc Apparatus for vacuum-less meat processing
US7871655B2 (en) * 2003-08-20 2011-01-18 Kraft Foods Global Brands Llc Method and apparatus for accelerating formation of functional meat mixtures
US20050219942A1 (en) * 2004-02-11 2005-10-06 Kris Wallgren Low profile mixing plant for particulate materials
TWI332073B (en) * 2004-02-12 2010-10-21 Sanyo Electric Co Heating/cooling system
US7320539B2 (en) * 2004-04-05 2008-01-22 Mcneilus Truck And Manufacturing, Inc. Concrete batching facility and method
KR100744193B1 (en) 2006-03-22 2007-08-01 최제필 Portable concrete manufacturing apparatus
US11203879B2 (en) * 2006-03-23 2021-12-21 Pump Truck Industrial, LLC System and process for delivering building materials
US20080004477A1 (en) * 2006-07-03 2008-01-03 Brunsell Dennis A Method and device for evaporate/reverse osmosis concentrate and other liquid solidification
RU2490223C2 (en) * 2006-11-21 2013-08-20 ГАРСИА Карлос Хавиер ФЕРНАНДЕЗ Method of preliminary mixing and dry filling with fibre
US8187651B2 (en) * 2008-11-24 2012-05-29 Kraft Foods Global Brands Llc Method and apparatus for continuous processing of whole muscle meat products
US8641263B2 (en) 2008-11-24 2014-02-04 Kraft Foods Group Brands Llc Method and apparatus for continuous processing of whole muscle meat products
US8308342B2 (en) 2008-11-24 2012-11-13 Kraft Foods Global Brands Llc Processing elements for mixing meat products
US20110204611A1 (en) * 2010-02-18 2011-08-25 Daimler Trucks North America Llc Fiber reinforced polymer frame rail
US9836801B2 (en) 2012-01-23 2017-12-05 Quipip, Llc Systems, methods and apparatus for providing comparative statistical information in a graphical format for a plurality of markets using a closed-loop production management system
US9254583B2 (en) 2012-01-23 2016-02-09 Quipip, Llc Systems, methods and apparatus for providing comparative statistical information for a plurality of production facilities in a closed-loop production management system
EP2914372B1 (en) * 2012-11-02 2017-12-27 Bühler AG Apparatus and method for mixing of bulk material with a liquid
CN102922605B (en) * 2012-11-14 2014-12-10 三一重工股份有限公司 Mixing plant
US10232332B2 (en) * 2012-11-16 2019-03-19 U.S. Well Services, Inc. Independent control of auger and hopper assembly in electric blender system
US10184928B2 (en) 2014-01-29 2019-01-22 Quipip, Llc Measuring device, systems, and methods for obtaining data relating to condition and performance of concrete mixtures
US9194855B2 (en) 2014-02-28 2015-11-24 Quipip, Llc Systems, methods and apparatus for providing to a driver of a vehicle carrying a mixture real-time information relating to a characteristic of the mixture
CN104118059A (en) * 2014-07-23 2014-10-29 浙江方远建材科技有限公司 Mixed loading device of color brick pigment
US9969103B2 (en) * 2014-12-25 2018-05-15 Shenzhen Weihai Building Material Co., Ltd. Environmental-friendly mortar mixing robot
CA2975337C (en) 2015-01-30 2023-08-29 Quipip, Llc Systems, apparatus and methods for testing and predicting the performance of concrete mixtures
US10053953B2 (en) * 2015-03-21 2018-08-21 Baker Hughes, A Ge Company, Llc System, apparatus and methods for blending cement
US11192731B2 (en) 2015-05-07 2021-12-07 Halliburton Energy Services, Inc. Container bulk material delivery system
AU2015402766A1 (en) 2015-07-22 2017-05-18 Halliburton Energy Services, Inc. Mobile support structure for bulk material containers
WO2017014771A1 (en) 2015-07-22 2017-01-26 Halliburton Energy Services, Inc. Blender unit with integrated container support frame
CA2996055C (en) 2015-11-25 2022-04-26 Halliburton Energy Services, Inc. Sequencing bulk material containers for continuous material usage
CN110267732A (en) * 2015-12-11 2019-09-20 鞋匠技术公司 Hypervariable advanced manufacturing technology
WO2017111968A1 (en) 2015-12-22 2017-06-29 Halliburton Energy Services, Inc. System and method for determining slurry sand concentration and continuous calibration of metering mechanisms for transferring same
WO2017160283A1 (en) 2016-03-15 2017-09-21 Halliburton Energy Services, Inc. Mulling device and method for treating bulk material released from portable containers
CA3008583C (en) * 2016-03-24 2020-07-14 Halliburton Energy Services, Inc. Fluid management system for producing treatment fluid using containerized fluid additives
WO2017171797A1 (en) 2016-03-31 2017-10-05 Halliburton Energy Services, Inc. Loading and unloading of bulk material containers for on site blending
CA3014878C (en) 2016-05-24 2021-04-13 Halliburton Energy Services, Inc. Containerized system for mixing dry additives with bulk material
US10919693B2 (en) 2016-07-21 2021-02-16 Halliburton Energy Services, Inc. Bulk material handling system for reduced dust, noise, and emissions
US11186431B2 (en) 2016-07-28 2021-11-30 Halliburton Energy Services, Inc. Modular bulk material container
US11338260B2 (en) 2016-08-15 2022-05-24 Halliburton Energy Services, Inc. Vacuum particulate recovery systems for bulk material containers
WO2018038721A1 (en) 2016-08-24 2018-03-01 Halliburton Energy Services, Inc. Dust control systems for bulk material containers
US11186454B2 (en) 2016-08-24 2021-11-30 Halliburton Energy Services, Inc. Dust control systems for discharge of bulk material
US11186318B2 (en) 2016-12-02 2021-11-30 Halliburton Energy Services, Inc. Transportation trailer with space frame
CN108404771B (en) * 2018-03-31 2019-01-11 安徽百禾堂中药饮片有限公司 A kind of bio-pharmaceuticals device
CN110368859B (en) * 2019-06-10 2022-04-12 湖南川渝食品有限公司 Equipment and method for blending multiple seasonings according to proportion
US20210229322A1 (en) * 2020-01-24 2021-07-29 Neal Johnson Containerized concrete batch plant
US20220297346A1 (en) * 2020-01-24 2022-09-22 Neal Johnson Containerized concrete batch plant
AU2021286731A1 (en) * 2020-06-12 2023-02-02 Tirso CHAVEZ Mobile continuous mixing apparatus background of the invention
CN112171893A (en) * 2020-09-30 2021-01-05 海娇 Cement mixing stirring device
KR102204487B1 (en) * 2020-11-24 2021-01-20 정균태 Mixing method of inorganic sludge and general soil
CN112755907A (en) * 2020-12-21 2021-05-07 泰州市欣港电子材料有限公司 Process equipment for producing gold potassium citrate

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073452B (en) * 1960-01-21 MIAG Mühlenbau und Industrie G.m.b.H., Hannover Device for cleaning the wall and floor surfaces of granulating plates
CH349477A (en) * 1957-02-28 1960-10-15 Buehler Ag Geb Batch mixer
FR1329058A (en) * 1962-04-27 1963-06-07 Advanced concrete mixer
DE2546130A1 (en) * 1975-10-15 1977-04-28 Iminex Gmbh METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF INSULATING MATERIAL FROM FIBER MATERIAL AND A POWDERED, FLAME RESISTANT SUBSTANCE
AT342501B (en) * 1975-11-13 1978-04-10 Mueller Otto CONTAINER
GB2016291A (en) * 1978-02-25 1979-09-26 Poyser G J Apparatus for mixing and dispensing foodstuff for animals
DE3027069A1 (en) * 1980-07-17 1982-02-18 Mathis System-Technik Gmbh, 7801 Merdingen MIXING TOWER FOR THE PRODUCTION OF FRESH CONCRETE, DRY MORTAR OR THE LIKE.
GB2092903A (en) * 1981-02-14 1982-08-25 Thyssen Industrie Continuous mixing of granular and powdered materials

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US466751A (en) * 1892-01-05 Sifting and mixing machine
DE327966C (en) * 1917-07-04 1920-10-19 Baum Akt Ges Maschf Device for preventing blockages in filling funnels u. like
US1622294A (en) * 1925-10-16 1927-03-29 Saulnier Joseph Mixing machine
US1798505A (en) * 1929-03-18 1931-03-31 Francis J Straub Building block and method of making the same
GB1066599A (en) * 1964-06-18 1967-04-26 Gibson Readymixed Concrete Ltd Improvements in or relating to mixing plant
GB1191853A (en) * 1966-09-06 1970-05-13 Automated Feed Mills Ltd Improvements relating to Disintegrating and Mixing Apparatus especially for Animal Foods
CH490946A (en) * 1967-06-08 1970-05-31 Huther & Co Roller mixer for the production of mix, in particular concrete
CH477903A (en) * 1967-08-18 1969-09-15 Buehler Ag Geb Method for mixing several components fed into a mixing device
US3570569A (en) * 1969-05-05 1971-03-16 Hobart Mfg Co Food mixing machine
FR2052001A5 (en) * 1969-07-04 1971-04-09 Boniface Freres Sa Automatic prepn of moulding sand
US3617031A (en) * 1970-07-10 1971-11-02 Hugh P Paris Concrete batchor plant and double-end loading transit mixer
DE2218674A1 (en) * 1972-04-18 1973-10-31 Heimer Gmbh Co Kg Maschf CONCRETE PREPARATION PLANT AND PROCESS
GB1407035A (en) * 1972-07-22 1975-09-24 Caledonian Mining Co Ltd Apparatus for preparing and dispensing mixtures of concrete and fibres
DE2316447A1 (en) * 1973-04-02 1974-10-03 Karl Weiss Kg MIXER IN A TREATMENT PLANT FOR TRANSPORT CONCRETE
JPS5361854A (en) * 1976-11-10 1978-06-02 Chambon Rene Method of adding powdered products and apparatus for executing same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073452B (en) * 1960-01-21 MIAG Mühlenbau und Industrie G.m.b.H., Hannover Device for cleaning the wall and floor surfaces of granulating plates
CH349477A (en) * 1957-02-28 1960-10-15 Buehler Ag Geb Batch mixer
FR1329058A (en) * 1962-04-27 1963-06-07 Advanced concrete mixer
DE2546130A1 (en) * 1975-10-15 1977-04-28 Iminex Gmbh METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF INSULATING MATERIAL FROM FIBER MATERIAL AND A POWDERED, FLAME RESISTANT SUBSTANCE
AT342501B (en) * 1975-11-13 1978-04-10 Mueller Otto CONTAINER
GB2016291A (en) * 1978-02-25 1979-09-26 Poyser G J Apparatus for mixing and dispensing foodstuff for animals
DE3027069A1 (en) * 1980-07-17 1982-02-18 Mathis System-Technik Gmbh, 7801 Merdingen MIXING TOWER FOR THE PRODUCTION OF FRESH CONCRETE, DRY MORTAR OR THE LIKE.
GB2092903A (en) * 1981-02-14 1982-08-25 Thyssen Industrie Continuous mixing of granular and powdered materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391494A1 (en) * 1989-04-06 1990-10-10 Mulder-Boskoop N.V. Process and apparatus for preparing a mixture, especially for mortar and other similar mixtures
DE3930954A1 (en) * 1989-09-15 1991-03-28 Herfeld Gmbh & Co Kg Dr MIXING DEVICE
CN111361007A (en) * 2020-04-30 2020-07-03 吴满意 A concrete mixing device for road construction
CN111923242A (en) * 2020-06-22 2020-11-13 苏州上建杭鑫混凝土有限公司 Recycled concrete manufacturing equipment
CN111923242B (en) * 2020-06-22 2021-10-12 苏州上建杭鑫混凝土有限公司 Recycled concrete manufacturing equipment

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DE3236780C2 (en) 1984-09-06
BR8305464A (en) 1984-05-15
AU555362B2 (en) 1986-09-18
ATE28408T1 (en) 1987-08-15
SU1535372A3 (en) 1990-01-07
ES525107A0 (en) 1984-05-16
KR840006616A (en) 1984-12-01
ES8404616A1 (en) 1984-05-16
DE3372582D1 (en) 1987-08-27
EP0105107B1 (en) 1987-07-22
KR870000082B1 (en) 1987-02-10
JPS5966336A (en) 1984-04-14
US4548507A (en) 1985-10-22
ZA836413B (en) 1984-05-30
CA1235688A (en) 1988-04-26
DE3236780A1 (en) 1984-04-05
EP0105107A3 (en) 1985-08-14

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