EP0294496B1 - Device for making mortar and floor cement - Google Patents

Device for making mortar and floor cement Download PDF

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Publication number
EP0294496B1
EP0294496B1 EP19870108244 EP87108244A EP0294496B1 EP 0294496 B1 EP0294496 B1 EP 0294496B1 EP 19870108244 EP19870108244 EP 19870108244 EP 87108244 A EP87108244 A EP 87108244A EP 0294496 B1 EP0294496 B1 EP 0294496B1
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EP
European Patent Office
Prior art keywords
trough
piece
outlet
outlet connection
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP19870108244
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German (de)
French (fr)
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EP0294496A1 (en
Inventor
Kurt F. Lipfert
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Atec Anlagentechnik & Co GmbH
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Atec Anlagentechnik & Co GmbH
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Priority to AT87108244T priority Critical patent/ATE61967T1/en
Priority to DE8787108244T priority patent/DE3768949D1/en
Publication of EP0294496A1 publication Critical patent/EP0294496A1/en
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Publication of EP0294496B1 publication Critical patent/EP0294496B1/en
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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
    • B28C9/00—General arrangement or layout of plant
    • 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
    • B28C9/006—General arrangement or layout of plant comprising a multicompartment silo with the mixing device, e.g. a mixing screw, fitted directly at the underside of the silo, e.g. with proportioning means at the exit of the silo

Definitions

  • the invention relates to a device for the preparation of mortar and screed, with a portable multi-chamber silo for the transport of aggregates and binders and dosing from separate different sized chambers of the multi-chamber silo into a collecting container, each chamber having a bottom-side outlet opening to which the collecting container Connect leading channels and the channel connected to the larger chamber has a substantially horizontally arranged vibration channel provided with a vibration motor.
  • a similar device is known from FR-A-2 401 005.
  • the chambers here are designed in separate silos and do not belong to a transportable unit.
  • the channel below the large chamber consists of two continuous conveyor belts connected in series, which convey the aggregates into a vibrating trough, where the flow height of the material flow is measured.
  • the measured material flow then flows into a collection container, which is also a mixing container.
  • a metering conveyor screw adjoins the other, binder-containing chamber, which unloads onto an endless conveyor belt, which also directs the binder stream into the collecting container.
  • the additives have a very different flow behavior.
  • Wet gravel sand tends to cake, which can lead to bridging above the outlet port of the silo.
  • the silo is then no longer ready for delivery.
  • the function of the entire facility is disrupted because the other conveying facilities for the mixing components continued to work, which makes the mixture unusable.
  • the vibrating trough downstream of the endless belts is used to even out the material flow and measure the layer height, depending on which water is later added to the dry mix.
  • the object of the invention is to design a device of the generic type in such a way that the discharge of the additives from the silo chamber is always guaranteed, even with poor flow properties, both volume metering and weight metering of the mixing components is possible, higher wear resistance is achieved and finally one simpler and cheaper construction is achieved.
  • the vibrating trough Due to the inventive storage of the vibrating trough directly on the silo, the vibrating trough has a double function. It not only acts as a dosing device, but also influences the flow behavior of the additives inside the silo. Thanks to the transmission of the vibrations of the vibrating trough to the aggregate column and via this to the aggregate supply in the silo, any caking of even extremely wet aggregates is prevented, so that the dreaded bridging above the outlet nozzle is reliably avoided.
  • Embodiments of the invention consist in that the lower end of the outlet connection of the larger chamber widens in cross-section downwards and that the outlet connection of the larger chamber has a front wall inclined obliquely forward and downward and that between the lower end of the outlet connection and the walls of the vibrating channel an all-round distance is maintained, the front edge of the outlet connecting piece forming a wiper lip delimiting the layer height in the vibrating trough and that an outlet opening of the vibrating trough above an inlet connection on the cover side the collecting container is arranged.
  • This design enables the aggregate column to be built up, which is carried at the bottom by the vibrating trough and extends upwards into the silo chamber.
  • the vibrating trough bridges the horizontal distance between the two chamber outlets, so that the collecting container only has to have one inlet opening through which all mixing components are supplied.
  • the collecting container is designed as a pressure container for conveying the mortar or screed, because then the inlet opening must be closed airtight and therefore only one closure is required.
  • the outlet connection of the smaller chamber of the silo thus leads directly into the inlet opening of the collecting container.
  • This outlet connection preferably projects into the conveying direction of the channel, at a distance behind the front end of a bottom-side outlet opening of the channel, or penetrates it.
  • the vibrating trough forms a channel closed on all sides, with inlet openings for the outlet ports of both chambers and the bottom outlet port, that the latter is surrounded by an outlet port which is tightly connected to an inlet port of the collecting container by a flexible pipe piece or a bellows, that the outlet port of the smaller chamber is flexible at least in the mouth area in the vibrating channel and is held in close contact with the vibrating channel, that either a sealing element extending between the two side walls of the vibrating channel protrudes downward from a top wall of the channel and ends above the channel bottom or that between the outlet connection of the larger ones Chamber and the vibration channel formed gap is elastically sealed and that an air outlet opening on the cover wall is provided, to which an air filter is connected. If the aforementioned sealing element is used, the air outlet opening, as seen in the conveying direction of the vibrating channel, lies behind this sealing element. Thanks to these features, it is achieved that when the collecting container is filled with cement, the resulting dust cannot escape to the outside.
  • the vibrating trough or the outlet nozzle of the larger chamber protruding into it is vertical or inclined
  • This control slide is operated manually in order to adapt the output quantity of the aggregates to their respective flow behavior.
  • a water pipe opens in the conveying direction of the vibrating trough, behind the front end of the outlet opening on the bottom of the vibrating trough.
  • a flexible pipe or flexible hose which penetrates the vibrating trough and projects below.
  • the outlet connector of the smaller chamber or its extension tube and the water pipe preferably open in the area vertically above the inlet opening of the collecting container.
  • the metering of the mixing components can be carried out by volume, the flow rate of the aggregates being determined by the flow speed forced by the vibration motor and the set layer height, while the cement supply is regulated, for example, by means of a cellular wheel.
  • the amount of water is read on a water meter.
  • the collecting container as a weighing container is movably suspended and provided with a weighing device and that a motor-driven mixing tool is arranged in the collecting container.
  • a very compact design is achieved.
  • the new facility can be operated continuously or in batches.
  • a silo 10 has a larger chamber 12 and a smaller chamber 14, the latter through a curved wall 16 in the larger chamber is integrated so that, apart from the two chamber outlet ports 18, 20, the silo 10 has a circular cylindrical wall.
  • the outlet port 18 is closed by a slide valve 22 for transport. It remains open for mortar or screed preparation. Below the slide valve 22, the outlet 18 extends and protrudes into a slightly downwardly inclined closed channel 24 which has at the opposite end a bottom outlet opening 26 to which an outlet 28 connects, which via a flexible pipe piece or bellows 30 to the Shut-off device 32 having inlet connection 34 of a collecting container 36 is connected.
  • the trough 24 is suspended in a swinging manner by means of oscillating metal blocks 38 on struts 40 which are fastened to the silo 10.
  • the top wall of the channel 24 has a bore 44 above the outlet opening 26 at the rear end of the channel.
  • a hose adjoining the outlet connector 20 of the smaller chamber 14 passes through the bore 44 and outlet opening 26 and hangs in the bellows 30 in.
  • the bottom opening 26 of the channel 24 is located directly at the end of the channel.
  • the front edge 48 of the outlet opening 26 is straight and extends transversely to the longitudinal direction of the channel 24. At the ends of the front edge 48 there is an arcuate contour of the outlet opening 26.
  • the hose 46 for the cement supply is located at a distance from the front edge 28, via which the aggregates pass from the channel 24 into the collecting container 36. Immediately in front of the hose 46 there is a water inlet connection 50 on the top wall of the channel 24.
  • a sealing member 52 made of rubber or the like extends between the side walls of the channel 24, protrudes downward from the top wall of the channel 24 and is guided to the front edge of the front wall of the outlet connector 18 which runs obliquely forward and downward, or simply lies on the aggregate bed on.
  • this sealing element 52 there is an opening in the top wall of the channel 24, to which an air filter 56 is connected on the outside.
  • a control slide 58 is arranged inclined downwards, which can be adjusted manually in order to be able to adjust the quantity of the additives to be discharged.
  • the collection container 36 is pivotally or pivotally mounted about a transverse axis 60 and suspended at the other end via a weighing device 62 on the silo 10, as illustrated at 64.
  • a motor-driven mixing tool is arranged in the collecting container.
  • the collection container is part of a separate movable unit that simultaneously generates compressed air to remove the ready-mixed mortar or screed.
  • the collection container 36 could belong to the silo and be suspended in an oscillating manner about the axis 60.
  • the additives located in the silo chamber 12 form a uniform material column, which is supported on the bottom of the channel 24. If the vibration motor 42 is started, the aggregates are conveyed along the channel 24. At the same time, the vibrations of the bulk material column are communicated, which is thereby kept loose, so that a constant inflow is ensured.
  • the aggregates pass through the trough outlet opening 26 into the collecting container 36.
  • the weighing device 62 stops the vibration motor 42 when the desired quantity has arrived. Then a closure member on the nozzle 20 is opened and, depending on the recipe, a desired amount of cement is fed, which is weighed additively.
  • the resulting cement dust Thanks to the completely closed design of the channel 24 and the sealing element 52 resting on the material surface in the channel 24, it cannot escape to the outside.
  • the appropriate amount of water is then added.
  • the weighing device 62 controls the closing movement of the shut-off element 32 while the mixing device is running, after which the finished mixture is ready for dispensing.
  • the existing rectangular annular gap between the lower end of the outlet connection 18 and the channel walls can also be sealed by means of rubber sleeves.

Landscapes

  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Description

Die Erfindung betrifft eine Einrichtung zur Bereitung von von Mörtel und Estrich, mit einem transportablen Mehrkammersilo für den Transport von Zuschlagstoffen und Bindemittel und Dosierung aus getrennten unterschiediich großen Kammern des Mehrkammersilos in einen Sammelbehälter, wobei jede Kammer eine bodenseitige Auslaßöffnung aufweist, an die sich zum Sammelbehälter führende Kanäle anschließen und der an die größere Kammer angeschlossene Kanal eine im wesentlichen liegend angeordnete, mit einem Vibrationsmotor versehene Vibrationsrinne aufweist.The invention relates to a device for the preparation of mortar and screed, with a portable multi-chamber silo for the transport of aggregates and binders and dosing from separate different sized chambers of the multi-chamber silo into a collecting container, each chamber having a bottom-side outlet opening to which the collecting container Connect leading channels and the channel connected to the larger chamber has a substantially horizontally arranged vibration channel provided with a vibration motor.

Eine ähnliche Einrichtung ist aus der FR-A-2 401 005 bekannt. Allerdings sind hier die Kammern in separaten Silos ausgebildet und gehören nicht zu einer transportablen Einheit. Der Kanal unterhalb der großen Kammer besteht aus zwei hintereinander geschalteten Endlosförderbändern, die die Zuschlagstoffe in eine Vibrationsrinne fördern, wo die Fließhöhe des Materialstromes gemessen wird. Anschließend fließt der gemessene Materialstrom in einen Sammelbehälter, der gleichzeitig Mischbehälter ist. An die andere, Bindemittel enthaltene Kammer schließt sich eine Dosierförderschnecke an, die auf ein Endlosförderband entlädt, das den Bindemittelstrom ebenfalls in den Sammelbehälter leitet.A similar device is known from FR-A-2 401 005. However, the chambers here are designed in separate silos and do not belong to a transportable unit. The channel below the large chamber consists of two continuous conveyor belts connected in series, which convey the aggregates into a vibrating trough, where the flow height of the material flow is measured. The measured material flow then flows into a collection container, which is also a mixing container. A metering conveyor screw adjoins the other, binder-containing chamber, which unloads onto an endless conveyor belt, which also directs the binder stream into the collecting container.

Die Zuschlagstoffe haben je nach Konsistenz und Feuchtegehalt ein sehr unterschiedliches Fließverhalten. Nasser Kiessand neigt zum Zusammenbacken, wodurch es oberhalb des Auslaßstutzens des Silos zu einer Brückenbildung kommen kann. Das Silo ist dann nicht mehr abgabebereit. Die Funktion der gesamten Einrichtung ist gestört, denn die anderen Fördereinrichtungen für die Mischkomponenten arbeiteten weiter, weswegen die Mischung unbrauchbar wird. Die den Endlosbändern nachgeschaltete Vibrationsrinne dient der Vergleichmäßigung des Materialstromes und der Messung der Schichthöhe, in deren Abhängigkeit später der Trockenmischung Wasser zugesetzt wird.Depending on the consistency and moisture content, the additives have a very different flow behavior. Wet gravel sand tends to cake, which can lead to bridging above the outlet port of the silo. The silo is then no longer ready for delivery. The function of the entire facility is disrupted because the other conveying facilities for the mixing components continued to work, which makes the mixture unusable. The vibrating trough downstream of the endless belts is used to even out the material flow and measure the layer height, depending on which water is later added to the dry mix.

Aufgabe der Erfindung ist es, eine Einrichtung der gattungsgemäßen Art so auszubilden, daß der Austrag der Zuschlagstoffe aus der Silokammer auch bei schlechten Fließeigenschaften immer gewährleistet ist, sowohl eine Volumendosierung als auch eine Gewichtsdosierung der Mischkomponenten möglich ist, eine höhere Verschleißfestigkeit erreicht wird und schließlich eine einfachere und kostengünstigere Bauweise erzielt wird.The object of the invention is to design a device of the generic type in such a way that the discharge of the additives from the silo chamber is always guaranteed, even with poor flow properties, both volume metering and weight metering of the mixing components is possible, higher wear resistance is achieved and finally one simpler and cheaper construction is achieved.

Diese Aufgabe wird mit einer Einrichtung der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß die Vibrationsrinne am Silo schwingend gelagert ist und ein Auslaßstutzen des Silos in der Vibrationsrinne mündet, die Ihre Vibrationen über die Zuschlagstoffsäule im Auslaßstutzen in das Innere des Silos überträgt.This object is achieved according to the invention with a device of the type mentioned at the outset in that the vibrating trough is mounted in a swinging manner on the silo and an outlet connection of the silo opens into the vibrating trough, which transmits your vibrations via the aggregate column in the outlet connection into the interior of the silo.

Aufgrund der erfindungsgemäßen Lagerung der Vibrationsrinne unmittelbar am Silo, erhält die Vibrationsrinne eine Doppelfunktion. Sie wirkt nicht nur als Dosierorgan, sondern beeinflußt auch das Fließverhalten der Zuschlagstoffe im Inneren des Silos. Dank der Übertragung der Vibrationen der Vibrationsrinne auf die Zuschlagstoffsäule und über diese auf den Zuschlagstoffvorrat im Silo wird nämlich jegliches Zusammenbacken auch extrem nasser Zuschlagstoffe verhindert, sodaß die gefürchtete Brückenbildung oberhalb des Aus laßstutzens sicher vermieden wird.Due to the inventive storage of the vibrating trough directly on the silo, the vibrating trough has a double function. It not only acts as a dosing device, but also influences the flow behavior of the additives inside the silo. Thanks to the transmission of the vibrations of the vibrating trough to the aggregate column and via this to the aggregate supply in the silo, any caking of even extremely wet aggregates is prevented, so that the dreaded bridging above the outlet nozzle is reliably avoided.

Ausgestaltungen der Erfindung bestehen darin, daß sich das untere Ende des Auslaßstutzens der größeren Kammer im Querschnitt nach unten erweitert und daß der Auslaßstutzen der größeren Kammer eine schräg nach vorn und unten geneigte Vorderwand hat und daß zwischen dem unteren Ende des Auslaßstutzens und den Wänden der Vibrationsrinne ein allseitiger Abstand eingehalten ist, wobei die Vorderkante des Auslaßstutzens eine die Schichthöhe in der Vibrationsrinne begrenzende Abstreiflippe bildet und daß eine Auslaßöffnung der Vibritionsrinne oberhalb eines deckseitigen Einlaßstutzens des Sammelbehälters angeordnet ist. Diese Ausbildung ermöglicht den Aufbau der Zuschlagstoffsäule, die unten von der Vibrationsrinne getragen wird und sich nach oben in die Silokammer hineinerstreckt. Die Vibrationsrinne überbrückt den Horizontalabstand der beiden Kammerauslässe, sodaß der Sammelbehälter nur eine Einlaßöffnung aufzuweisen braucht, durch die alle Mischkomponenten zugeführt werden. Dies ist insbesondere vorteilhaft, wenn der Sammelbehälter als Druckbehälter zur Förderung des Mörtels oder Estriches ausgebildet ist, weil dann die Einlaßöffnung luftdicht verschlossen werden muß und somit nur ein Verschluß benötigt wird. Der Auslaßstutzen der kleineren Kammer des Silos führt somit direkt in die Einlaßöffnung des Sammelbehälters. Vorzugsweise ragt dieser Auslaßstutzen in Förderrichtung der Rinne gesehen, im Abstand hinter dem Vorderende einer bodenseitigen Auslaßöffnung der Rinne in diese hinein oder durchsetzt diese.Embodiments of the invention consist in that the lower end of the outlet connection of the larger chamber widens in cross-section downwards and that the outlet connection of the larger chamber has a front wall inclined obliquely forward and downward and that between the lower end of the outlet connection and the walls of the vibrating channel an all-round distance is maintained, the front edge of the outlet connecting piece forming a wiper lip delimiting the layer height in the vibrating trough and that an outlet opening of the vibrating trough above an inlet connection on the cover side the collecting container is arranged. This design enables the aggregate column to be built up, which is carried at the bottom by the vibrating trough and extends upwards into the silo chamber. The vibrating trough bridges the horizontal distance between the two chamber outlets, so that the collecting container only has to have one inlet opening through which all mixing components are supplied. This is particularly advantageous if the collecting container is designed as a pressure container for conveying the mortar or screed, because then the inlet opening must be closed airtight and therefore only one closure is required. The outlet connection of the smaller chamber of the silo thus leads directly into the inlet opening of the collecting container. This outlet connection preferably projects into the conveying direction of the channel, at a distance behind the front end of a bottom-side outlet opening of the channel, or penetrates it.

Eine wichtige Weiterbildung ist dann noch darin zu sehen, daß die Vibrationsrinne einen allseitig geschlossenen Kanal bildet, mit Eintrittsöffnungen für die Auslaßstutzen beider Kammern und der bodenseitigen Auslaßöffnung, daß letztere von einem Auslaßstutzen umgeben ist, der durch ein flexibles Rohrstück oder einem Faltenbalg mit einem Einlaßstutzen des Sammelbehälters dicht verbunden ist, daß der Auslaßstutzen der kleineren Kammer mindestens im Mündungsbereich in der Vibrationsrinne flexibel ausgebildet und in dichter Anlage an der Vibrationsrinne gehalten ist, daß entweder ein sich zwischen beiden Seitenwänden der Vibrationsrinne erstreckendes Abdichtelement von einer Deckwand der Rinne nach unten ragt und oberhalb des Rinnenbodens endet oder der zwischen Auslaßstutzen der größeren Kammer und der Vibrationsrinne gebildete Spalt elastisch abgedichtet ist und daß eine deckwandseitige Luftauslaßöffnung vorgesehen ist, an die ein Luftfilter angeschlossen ist. Im Fall der Verwendung des vorgenannten Abdichtelementes liegt die Luftauslaßöffnung , in Förderrichttung derr Vibrationsrinne gesehen, hinter diesem Abdichtelement. Dank dieser Merkmale wird erreicht, daß beim Befüllen des Sammelbehälters mit Zement der entstehende Staub nicht nach außen dringen kann.An important further training can then be seen in that the vibrating trough forms a channel closed on all sides, with inlet openings for the outlet ports of both chambers and the bottom outlet port, that the latter is surrounded by an outlet port which is tightly connected to an inlet port of the collecting container by a flexible pipe piece or a bellows, that the outlet port of the smaller chamber is flexible at least in the mouth area in the vibrating channel and is held in close contact with the vibrating channel, that either a sealing element extending between the two side walls of the vibrating channel protrudes downward from a top wall of the channel and ends above the channel bottom or that between the outlet connection of the larger ones Chamber and the vibration channel formed gap is elastically sealed and that an air outlet opening on the cover wall is provided, to which an air filter is connected. If the aforementioned sealing element is used, the air outlet opening, as seen in the conveying direction of the vibrating channel, lies behind this sealing element. Thanks to these features, it is achieved that when the collecting container is filled with cement, the resulting dust cannot escape to the outside.

Ein weitere Ausgestaltung der Erfindung besteht darin, daß die Vibrationsrinne oder der in sie hineinragende Auslaßstutzen der größeren Kammer einen in vertikaler oder geneigter Richtung beweglichen Steuerschieber in Form einer von oben in die Vibrationsrinne bzw. den Auslaßstutzen hineinragenden, und sich wenigstens nahezu über deren bzw. dessen ganze Breite erstreckenden Platte aufweist, deren Abstand vom Rinnenboden einstellbar ist. Dieser Steuerschieber wird manuell betätigt, um die Ausgabemenge der Zuschlagstoffe ihrem jeweiligen Fließverhalten anzupassen.Another embodiment of the invention is that the vibrating trough or the outlet nozzle of the larger chamber protruding into it is vertical or inclined Towards the movable control spool in the form of a plate protruding from above into the vibrating trough or the outlet connector and at least almost extending over its or its entire width, the distance from which is adjustable from the trough bottom. This control slide is operated manually in order to adapt the output quantity of the aggregates to their respective flow behavior.

Eine Wasserleitung mündet in Förderrichtung der Vibrationsrinne gesehen, hinter dem Vorderende der bodenseitigen Auslauföffnung der Vibrationsrinne. An den Auslaßstutzen der kleineren Kammer schließt sich ein die Vibrationsrinne durchsetzendes und unten herausragendes flexibles Rohr oder biegsamer Schlauch an. Der Auslaßstutzen der kleineren Kammer bzw. sein Verlängerungsrohr und die Wasserleitung münden vorzugsweise im Bereich vertikal oberhalb der Einlaßöffnung des Sammelbehälters.A water pipe opens in the conveying direction of the vibrating trough, behind the front end of the outlet opening on the bottom of the vibrating trough. At the outlet of the smaller chamber there is a flexible pipe or flexible hose which penetrates the vibrating trough and projects below. The outlet connector of the smaller chamber or its extension tube and the water pipe preferably open in the area vertically above the inlet opening of the collecting container.

Die Dosierung der Mischkomponenten kann volumenmäßig erfolgen, wobei die Fördermenge der Zuschlagstoffe durch die vom Vibrationsmotor erzwungene Fließgeschwindigkeit und die eingestellte Schichthöhe bestimmt wird, während die Zementzufuhr beispielsweise über ein Zellenrad geregelt wird. Die Wassermenge wird an einer Wasseruhr abgelesen. Für höhere Genauigkeitsansprüche ist gemäß einer Ausgestaltung vorgesehen, daß der Sammelbehälter als Wiegebehälter bewegbar aufgehängt und mit einer Wägeeinrichtung versehen ist und daß im Sammelbehälter ein motorich angetriebenes Mischwerkzeug angeordnet ist. Neben der dadurch sehr einfachen Gewichtsdosierung der Mischkomponenten wird eine sehr kompakte Bauweise erreicht.The metering of the mixing components can be carried out by volume, the flow rate of the aggregates being determined by the flow speed forced by the vibration motor and the set layer height, while the cement supply is regulated, for example, by means of a cellular wheel. The amount of water is read on a water meter. For higher accuracy requirements, it is provided according to one embodiment that the collecting container as a weighing container is movably suspended and provided with a weighing device and that a motor-driven mixing tool is arranged in the collecting container. In addition to the very simple weight metering of the mixing components, a very compact design is achieved.

Die neue Einrichtung kann kontinuierlich oder chargenweise betrieben werden.The new facility can be operated continuously or in batches.

Anhand der Zeichnung sei die Erfindung beispielsweise näher erleutert.With the aid of the drawing, the invention will be explained in more detail, for example.

Es zeigt

FIG. 1
eine Seitenansicht der neuen Einrichtung mit Zweikammersilo,
FIG. 2
eine Vorderansicht der Einrichtung,
FIG. 3
eine Draufsicht auf die Einrichtung,
FIG. 4
eine Seitenansicht des wesentlichen Details der Einrichtung in größerem Maßstab,
FIG. 5
eine stirnseitige Ansicht der Aufhängung einer Förderrinne und zwar von der linken Seite der FIG. 4 und
FIG. 6
eine Draufsicht auf die Förderrinne.
It shows
FIG. 1
a side view of the new facility with two-chamber silo,
FIG. 2nd
a front view of the facility,
FIG. 3rd
a top view of the facility,
FIG. 4th
a side view of the essential details of the device on a larger scale,
FIG. 5
an end view of the suspension of a conveyor trough from the left side of FIG. 4 and
FIG. 6
a top view of the conveyor trough.

Ein Silo 10 hat eine größere Kammer 12 und eine kleinere Kammer 14, die letztere durch eine gebogene Wand 16 in die größere Kammer integriert ist, sodaß das Silo 10, abgesehen von den beiden Kammer-Auslaßstutzen 18,20 eine kreiszylindrische Wandung hat. Der Auslaßstutzen 18 wird mittels eines Verschlußschiebers 22 für den Transport abgeschlossen. Für die Mörtel- oder Estrichbereitung bleibt er ständig geöffnet. Unterhalb des Verschlußschiebers 22 erweitert sich der Auslaßstutzen 18 und ragt in eine leicht abwärtsgeneigte geschlossene Rinne 24 hinein, die am gegenüberliegenden Ende eine bodenseitige Auslaßöffnung 26 hat, an welche sich ein Auslaßstutzen 28 anschließt, der über ein flexibles Rohrstück oder Faltenbalg 30 an den, ein Absperrorgan 32 aufweisenden Einlaßstutzen 34 eines Sammelbehälters 36 angeschlossen ist.A silo 10 has a larger chamber 12 and a smaller chamber 14, the latter through a curved wall 16 in the larger chamber is integrated so that, apart from the two chamber outlet ports 18, 20, the silo 10 has a circular cylindrical wall. The outlet port 18 is closed by a slide valve 22 for transport. It remains open for mortar or screed preparation. Below the slide valve 22, the outlet 18 extends and protrudes into a slightly downwardly inclined closed channel 24 which has at the opposite end a bottom outlet opening 26 to which an outlet 28 connects, which via a flexible pipe piece or bellows 30 to the Shut-off device 32 having inlet connection 34 of a collecting container 36 is connected.

Die Rinne 24 ist mittels Schwingmetallblöcken 38 an Streben 40 schwingend aufgehängt, die am Silo 10 befestigt sind.An der Rinne 24 greift ein Vibrationsmotor 42 an, der insbesondere mittels Druckluft betrieben wird.The trough 24 is suspended in a swinging manner by means of oscillating metal blocks 38 on struts 40 which are fastened to the silo 10.

Die Deckwand der Rinne 24 hat am hinteren Rinnenende eine oberhalb der Auslaßöffnung 26 liegende Bohrung 44. Ein sich an den Auslaßstutzen 20 der kleineren Kammer 14 anschließender Schlauch durchsetzt Bohrung 44 und Auslaßöffnung 26 und hängt in den Faltenbalg 30 hinein. Die bodenseitige Öffnung 26 der Rinne 24 liegt unmittelbar am Rinnenende. Die Vorderkante 48 der Auslaßöffnung 26 ist geradlinig und erstreckt sich quer zur Längsrichtung der Rinne 24. An die Enden der Vorderkante 48 schließt sich eine kreisbogenförmige Kontur der Auslaßöffnung 26 an. Der Schlauch 46 für die Zementzufuhr befindet sich im Abstand von der Vorderkante 28 , über die die Zuschlagstoffe aus der Rinne 24 in den Sammelbehälter 36 gelangen. Unmittelbar vor dem Schlauch 46 befindet sich an der Deckwand der Rinne 24 ein Wassereinlaßstutzen 50.The top wall of the channel 24 has a bore 44 above the outlet opening 26 at the rear end of the channel. A hose adjoining the outlet connector 20 of the smaller chamber 14 passes through the bore 44 and outlet opening 26 and hangs in the bellows 30 in. The bottom opening 26 of the channel 24 is located directly at the end of the channel. The front edge 48 of the outlet opening 26 is straight and extends transversely to the longitudinal direction of the channel 24. At the ends of the front edge 48 there is an arcuate contour of the outlet opening 26. The hose 46 for the cement supply is located at a distance from the front edge 28, via which the aggregates pass from the channel 24 into the collecting container 36. Immediately in front of the hose 46 there is a water inlet connection 50 on the top wall of the channel 24.

Ein Abdichtelement 52 aus Gummi oder dergl. erstreckt sich zwischen den Seitenwänden der Rinne 24, ragt von der Deckwand der Rinne 24 nach unten und ist zur Vorderkante der schräg nach vorn und unten verlaufenden Vorderwand des Auslaßstutzens 18 geführt oder liegt einfach auf dem Zuschlagstoff-Bett auf. Vor diesem Abdichtelement 52 befindet sich in der Deckwand der Rinne 24 eine Öffnung, an die außenseitig ein Luftfilter 56 angeschlossen ist. In der Vorderwand 54 des Auslaßstutzens 18 ist ein Steuerschieber 58 schräg nach unten geneigt angeordnet, der manuell einstellbar ist, um die Auslaufmenge der Zuschlagstoffe einstellen zu können.A sealing member 52 made of rubber or the like extends between the side walls of the channel 24, protrudes downward from the top wall of the channel 24 and is guided to the front edge of the front wall of the outlet connector 18 which runs obliquely forward and downward, or simply lies on the aggregate bed on. In front of this sealing element 52 there is an opening in the top wall of the channel 24, to which an air filter 56 is connected on the outside. In the front wall 54 of the outlet nozzle 18, a control slide 58 is arranged inclined downwards, which can be adjusted manually in order to be able to adjust the quantity of the additives to be discharged.

Wie sich aus FIG. 1 ergibt, ist der Sammelbehälter 36 um eine Querachse 60 schwenkbar oder schwingend gelagert und am anderen Ende über eine Wägeeinrichtung 62 am Silo 10 aufgehängt, wie bei 64 veranschaulicht ist. Im Sammelbehälter ist ein motorisch getriebenes Mischwerkzeug angeordnet. Der Sammelbehälter gehört hier zu einem separaten verfahrbaren Aggregat, das gleichzeitig Druckluft zur Abförderung des fertig gemischten Mörtels oder Estriches erzeugt. Alternativ könnte der Sammelbehälter 36 zum Silo gehören und um die Achse 60 pendelnd aufgehängt sein.As can be seen from FIG. 1, the collection container 36 is pivotally or pivotally mounted about a transverse axis 60 and suspended at the other end via a weighing device 62 on the silo 10, as illustrated at 64. A motor-driven mixing tool is arranged in the collecting container. The collection container is part of a separate movable unit that simultaneously generates compressed air to remove the ready-mixed mortar or screed. Alternatively, the collection container 36 could belong to the silo and be suspended in an oscillating manner about the axis 60.

Die in der Silokammer 12 befindlichen Zuschlagstoffe bilden eine einheitliche Materialsäule, die sich auf dem Boden der Rinne 24 abstützt. Wird der Vibrationsmotor 42 gestartet, tritt eine Förderung der Zuschlagstoffe längs der Rinne 24 ein. Gleichzeitig werden die Vibrationen der Schüttgutsäule mitgeteilt, die dadurch locker gehalten wird, sodaß ein ständiger Zufluß gewährleistet ist. Die Zuschlagstoffe gelangen durch die Rinnenauslaßöffnung 26 in den Sammelbehälter 36. Die Wägeeinrichtung 62 stoppt den Vibrationsmotor 42 wenn die gewünschte Menge eingelaufen ist. Dann wird ein Verschlußorgan am Stutzen 20 geöffnet und je nach Rezeptur eine gewünschte Menge Zement zugeführt, die additiv verwogen wird. Der dabei entstehende Zementstaub kann dank der vollkommen geschlossenen Bauweise der Rinne 24 und des auf der Materialoberfläche in der Rinne 24 aufliegenden Abdichtelementes 52 nicht nach außen gelangen. Anschließend wird die passende Wassermenge hinzudosiert. Die Wägeeinrichtung 62 steuert bei laufender Mischeinrichtung die Schließbewegung des Absperrorgans 32, wonach die fertige Mischung abgabebereit ist.The additives located in the silo chamber 12 form a uniform material column, which is supported on the bottom of the channel 24. If the vibration motor 42 is started, the aggregates are conveyed along the channel 24. At the same time, the vibrations of the bulk material column are communicated, which is thereby kept loose, so that a constant inflow is ensured. The aggregates pass through the trough outlet opening 26 into the collecting container 36. The weighing device 62 stops the vibration motor 42 when the desired quantity has arrived. Then a closure member on the nozzle 20 is opened and, depending on the recipe, a desired amount of cement is fed, which is weighed additively. The resulting cement dust Thanks to the completely closed design of the channel 24 and the sealing element 52 resting on the material surface in the channel 24, it cannot escape to the outside. The appropriate amount of water is then added. The weighing device 62 controls the closing movement of the shut-off element 32 while the mixing device is running, after which the finished mixture is ready for dispensing.

Anstelle des über die ganze Breite der Rinne 24 reichenden Abdichtelementes 52 kann der vorhandene rechteckförmige Ringspalt zwischen dem unteren Ende des Auslaufstutzens 18 und den Rinnenwänden auch mittels Gummimanschetten abgedichtet werden.Instead of the sealing element 52 extending over the entire width of the channel 24, the existing rectangular annular gap between the lower end of the outlet connection 18 and the channel walls can also be sealed by means of rubber sleeves.

Claims (12)

  1. A device for the preparation of mortar and a composition floor, with a portable multichamber silo (10) for the transportation of aggregates and binding agents and metering from separate chambers (12, 14) of the multichamber silo (10) into a collecting receptacle (36), these chambers being of different size, each chamber having a base-side outlet opening which is connected to channels (24; 46) running to the collecting receptacle (36) and the channel (24) connected to the larger chamber (12) having a vibrating trough (24) which has a vibratory motor (42) and is arranged substantially horizontal, characterized in that the vibrating trough (24) is mounted on the silo (10) so as to be able to oscillate and an outlet connection-piece (18) of the larger chamber of the silo (10) issues in the vibrating trough (24) which transfers its vibrations to the interior of the silo (10) via the aggregate column.
  2. A device in accordance with Claim 1, characterized in that a multidirectional clearance is maintained between the lower end of the outlet connection-piece (18) and the walls of the vibrating trough (24), the front edge of the outlet connection-piece (18) forming a stripping lip which limits the height of layer in the vibrating trough, and in that an outlet opening (26) in the vibrating trough (24) is arranged above a cover-side inlet-connection-piece (34) of the collecting receptacle (36).
  3. A device in accordance with Claim 1 or 2, characterized in that an outlet connection-piece (20) of the smaller chamber (14) of the silo (10) leads to a/the inlet connection-piece (34) of the collecting receptacle (36).
  4. A device in accordance with Claim 3, characterized in that the outlet connection-piece (20) of the smaller chamber (14) of the silo (10) extends into or penetrates through the trough (24) at a distance after the front edge (48) of a base-side outlet-opening (26) in the trough (24), viewed in the conveying direction of the trough (24).
  5. A device in accordance with Claim 4, characterized in that the trough (24) forms a channel which is closed on all sides and has entry openings for the outlet connection-pieces (18, 20) of the chambers (12, 14) and the base-side outlet-openings (26), in that the latter is surrounded by an outlet connection-piece (28) which is connected in a sealed manner to the inlet connection-piece (34) of the collecting receptacle (36) by means of a flexible pipe length or a concertina-like section (30), in that the outlet connection-piece (20) of the smaller chamber (14) is maintained in sealed contact with the trough and is, at least in the area in which it issues into the trough (24), flexible in construction, in that either a sealing element (52) extending between both lateral walls of the trough (24) projects downwards from a cover wall of the trough (24) and ends above the trough base or the gap formed between the outlet connection-piece (18) of the larger chamber (12) and the trough is elastically sealed, and in that an air outlet opening is provided in the cover wall and, viewed in the conveying direction of the trough, lies after this seal, an air filter (56) being attached to this air outlet opening.
  6. A device in accordance with any one of Claims 1 to 5, characterized in that the trough (24) or the larger-chamber outlet-connection-piece (18) projecting therein has a control slide valve (58) which is movable vertically or at an incline and is in the form of a plate which projects from above into the trough (24) or the outlet connection-piece (18) and at least extends over virtually the entire width thereof, the distance between the plate and the trough base being adjustable.
  7. A device in accordance with any one of Claims 1 to 6, characterized in that a water conduit (50) issues into the trough (24) after the front edge (48) of the base-side outlet opening (26) of the latter, viewed in the conveying direction of the trough (24).
  8. A device in accordance with any one of Claims 4 to 7, characterized in that a flexible pipe or pliable hose (46) which penetrates the trough (24) and projects downwards is connected to the outlet connection-piece (20) of the smaller chamber (14).
  9. A device in accordance with Claim 2 and 7, characterized in that the outlet connection-piece (20) of the smaller chamber or an extension pipe (46) of the outlet connection-piece and the water conduit (50) issue in the area vertically above the inlet connection-piece (34) of the collecting receptacle (36).
  10. A device in accordance with any one Of Claims 1 to 9, characterized in that the collecting receptacle (36) is movably suspended as a weighing receptacle and has a weighing device (62), and in that motor-driven mixing tool is arranged in the collecting receptacle (36).
  11. A device in accordance with any one of Claims 1 to 10, characterized in that the lower end of the outlet connection-piece (18) of the larger chamber (12) widens in cross-section in the downward direction.
  12. A device in accordance with Claim 11, characterized in that the outlet connection-piece (18) of the larger chamber (12) has a front wall (54) which inclines forwards and downwards at a slant.
EP19870108244 1986-05-13 1987-06-06 Device for making mortar and floor cement Expired - Lifetime EP0294496B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT87108244T ATE61967T1 (en) 1987-06-06 1987-06-06 DEVICE FOR PREPARING MORTAR AND SCREED.
DE8787108244T DE3768949D1 (en) 1987-06-06 1987-06-06 DEVICE FOR PREPARING MORTAR AND SCREED.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863616077 DE3616077A1 (en) 1986-05-13 1986-05-13 DEVICE FOR PREPARING MORTAR AND SCREED

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EP0294496A1 EP0294496A1 (en) 1988-12-14
EP0294496B1 true EP0294496B1 (en) 1991-03-27

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EP19870108244 Expired - Lifetime EP0294496B1 (en) 1986-05-13 1987-06-06 Device for making mortar and floor cement

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DE (1) DE3616077A1 (en)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE3834191A1 (en) * 1988-10-07 1990-04-12 Brockhues Chem Werke Ag Device and method for the automatic dosing of dry pigments into a concrete or mortar mixer
NL8901015A (en) * 1989-04-24 1990-11-16 Valmix B V I O SILO.
DE4425701C2 (en) * 1994-07-20 1998-01-08 Maxit Holding Gmbh Method and device for providing a colored mixture of building materials
CN102259107B (en) * 2011-08-15 2013-03-06 三一重工股份有限公司 Asphalt concrete mixing plant and dust collector thereof
CN103707416B (en) * 2013-12-14 2017-04-26 郑州市长城机器制造有限公司 Quantitative powder loading system

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US1819756A (en) * 1929-05-20 1931-08-18 Mccrady Brothers Company Machine for mixing concrete and the like
GB615353A (en) * 1946-01-11 1949-01-05 Bohumil Jirotka Method of, and arrangement for, manufacturing building material
GB657708A (en) * 1948-11-03 1951-09-26 Albert Newby Braithwaite New or improved means for determining and controlling the relative proportions of the ingredients of mixtures
DE805611C (en) * 1950-04-27 1951-05-25 Hermann Berger Dr Ing Method and device for feeding and mixing building materials
FR1265790A (en) * 1960-08-23 1961-06-30 Process for the production of sintered dolomite and sintered magnesia in a shaft furnace operating with mixed heating
US3617031A (en) * 1970-07-10 1971-11-02 Hugh P Paris Concrete batchor plant and double-end loading transit mixer
DE2057262A1 (en) * 1970-11-21 1972-06-15 Heimer Gmbh Co Kg Maschf Transportable plant for the composition of aggregates of different grain sizes for the production of concrete mixes
ES413860A1 (en) * 1972-04-21 1976-01-16 Ready Mixed Concrete Limited Improvements in appliances for feeding load or concrete material in the mixer drum of a concrete mixer. (Machine-translation by Google Translate, not legally binding)
US3891193A (en) * 1974-03-04 1975-06-24 Century Ind Inc Mobile apparatus to mix and deliver concrete compositions or the like
FR2401005A1 (en) * 1977-07-25 1979-03-23 Foucault Pierre Water control system for concrete making plant - has sensor to detect depth of cement-sand mix flowing down chute and regulate water quantity required
DK156546C (en) * 1982-04-30 1990-01-29 Framix B V METHOD AND APPARATUS FOR MANUFACTURING MORTEL
AU4220985A (en) * 1984-05-10 1985-11-14 Blue Circle Materials Pty. Ltd. Mobile cement and sand mixing system

Also Published As

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EP0294496A1 (en) 1988-12-14
DE3616077A1 (en) 1987-11-19

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