EP0150353A1 - Device for storing, batching and mixing of mortar components - Google Patents

Device for storing, batching and mixing of mortar components Download PDF

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Publication number
EP0150353A1
EP0150353A1 EP84114881A EP84114881A EP0150353A1 EP 0150353 A1 EP0150353 A1 EP 0150353A1 EP 84114881 A EP84114881 A EP 84114881A EP 84114881 A EP84114881 A EP 84114881A EP 0150353 A1 EP0150353 A1 EP 0150353A1
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EP
European Patent Office
Prior art keywords
container
mixing
balance
metering
removal
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
EP84114881A
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German (de)
French (fr)
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EP0150353B1 (en
Inventor
Georg Badum
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.)
BOCK, BERNHARD
BOCK, NORMANN
Original Assignee
Bock Bernhard
Bock Normann
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Application filed by Bock Bernhard, Bock Normann filed Critical Bock Bernhard
Priority to AT84114881T priority Critical patent/ATE68399T1/en
Publication of EP0150353A1 publication Critical patent/EP0150353A1/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
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1276—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with consecutive separate containers with rotating stirring and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1246—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with feeding devices

Definitions

  • the invention relates to a device according to the preamble of claim 1 and a method for operating this device.
  • Such a device is known from German patent application P 33 02 871.o.
  • the basic advantage of this known device is that it allows the production of ready-to-use mortar in a particularly simple manner by keeping the individual material components in stock in a common silo at the construction site and automatically removing them from this silo, so that the effort required to produce the ready-to-use mortar is significantly reduced and mixing errors are largely eliminated.
  • the individual components are metered volumetrically, which enables sufficient metering accuracy for many practical applications.
  • the invention is based on the object, while maintaining and further improving the ease of use and the general advantages of a conventional device of this type, in such a way that an even more precise metering is possible.
  • the characterizing part of claim 1 By means of the screw conveyors provided thereafter, arranged immediately below the container having a vertical division and the downstream scales, it is possible to install a ready-to-operate system on a construction site in a very short time, which mortar one can deliver exactly the specified composition. Because of the configuration according to the invention, the material storage container, the metering device and the mixing device form one unit, i.e. seized by a crane vehicle or the like by means of a single hook attachment and loaded and unloaded. Immediately after the device has been set down at the construction site, it is ready for operation, the screw conveyors ensuring reliable forced removal of the individual material components and - in connection with the scales, an exact dosage.
  • the invention is further developed according to claim 2, whereby pivoting of the screw conveyors and a mechanism required for this is unnecessary.
  • the design of the scale according to claim 3 ensures a high level of operational reliability even under harsh operating conditions, such as those found on construction sites.
  • the force transducer provided according to claim 4 enables a simple conversion of the mechanical deflection of the balance into an electrical signal, which can be further processed to control the device.
  • the mixing device is fully integrated into the metering device, which saves space and increases the operating speed of the device.
  • the water supply according to claim 8 enables an equally simple and exact water metering to the free-flowing mixing components.
  • the design of the outlet opening according to claim 9 prevents that from the mixing area of the container, soaked mixture is thrown upwards and in this way the conveying area of the screw conveyors becomes clogged.
  • a computer and control device as provided in claim 10, enables e.g. Use a pre-programmed dosage to produce mortar with the desired composition and consistency by simply pressing a button.
  • the construction according to claim 12 makes it possible to comfortably fill the container lying down, that is to say also in the transport position on a vehicle.
  • removal and dosing device can be detached from the container makes it possible to deliver a second container to a construction site with the initial delivery, the removal and dosing device being able to be easily implemented after the first container has been emptied to the second container.
  • the further embodiment of the method according to claim 15 enables premixing already during metering, so that larger material inhomogeneities are avoided from the outset.
  • a device according to the invention shown in the drawing comprises a silo-like storage container 1, which in the exemplary embodiment is divided into two partial containers 3, 4 by vertically extending partition walls 2.
  • An outlet opening 5, 6 is provided on the underside of each partial container 3, 4.
  • a delivery channel 7, 8 is in turn arranged below each of the outlet openings 5, 6.
  • each conveyor channel 7, 8 there is a conveyor screw 9, 10f filling it, each of which is driven by a shaft 11 or 12 and a motor 13 or 14.
  • each delivery channel 7, 8 an outlet opening 16 and 17 is provided in the bottom 15 thereof.
  • the outlet openings 16, 17 are covered by inherently elastic flaps 18 made of plastic that open downward under pressure.
  • the outlet openings 16, 17 open down into a container 19th
  • a mixing device 20 is arranged in the container 19, which extends over the entire width of the conveying channels 7, 8.
  • the mixing device 2o comprises a plurality of mixing tools which are fastened to a common shaft 21 which is driven by a motor 22 and is mounted in a bearing 23 which is only shown schematically.
  • a screw section 25 is provided as a mixing tool in the area of the discharge opening 24 and below the outlet opening 16. This is followed by holding arms 26 attached to the shaft 21 tangentially rotating mixing blades 27, which - as is not shown in the drawing - are set to the axial direction. Finally, in the end region of the container 19, mixing blades 29 are provided, which are attached to the shaft 21 and hold the container 19, via holding arms 28.
  • a water pipe 3o opens into the container 19, which is also only shown schematically and in which an electrically actuated metering valve is arranged.
  • the top wall 31 of the container 19 is independent of the bottom 15 of the delivery channels 7, 8, i.e. there is no fixed connection between the conveying channels 7, 8 and the container 19.
  • the container 19 is rather connected via support arms 32, 33 to the weighing arms 34, 35 of a beam balance 36 which are pivotably mounted in the bearings 37, 38.
  • the bearings 37, 38 are attached to the housing cover 39, which is connected to the container 1 at 4o.
  • the weighing arms 34, 35 press against a force transducer 41, only shown schematically, in which e.g. Strain gauges convert the forces applied by the weight of the container 19 or the material contained therein into electrical signals.
  • the device described above is operated in such a way that a certain batch quantity and composition are preselected via the computer and storage device, not shown.
  • the one screw conveyor 9 is first set in motion and at the same time the motor 22 of the mixing device 2 0 .
  • a first mortar component for example binding agent (cement)
  • cement is introduced into the container 19 via the conveying channel 7 and the outlet opening 16, and the change in weight is recorded via the scale 36.
  • the screw conveyor 9 is stopped.
  • the mixing device 2o continues to run, axially conveying it away from the outlet opening 16 or the discharge opening 24.
  • the metering of a second mortar component for example sand, is now carried out in the same way via the screw conveyor 10.
  • the two components are already mixed during the addition of the second component. Even before the addition of the first mortar component, water can also be added and mixed in via the water pipe 3o in a likewise preprogrammed quantity. After a pre-programmed mixing time, the direction of rotation of the motor 22 is reversed and discharged through the discharge opening 24 ready-to-use mortar.
  • the overall arrangement is such that the cleaning effort, which is customary in conventional mortar mixing machines, is minimal, since the entire system can be largely self-cleaning.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Accessories For Mixers (AREA)

Abstract

The device comprises a silo-like container, having sub-containers which are vertically separated from one another and whose underside is provided with one outlet opening in each case, a removal and metering apparatus being arranged underneath the outlet openings. To increase the metering accuracy and to simplify the metering, it is provided that the removal and metering apparatus in this device be formed by at least one worm conveyor (9, 10), which conveys material from a region below an outlet opening (16, 17) into a container (19) which is connected to a balance mechanism (36), the balance mechanism (36) being coupled with the drive (motor 13, 14) of the worm conveyor (9, 10). <IMAGE>

Description

Die Erfindung richtet sich auf eine Vorrichtung nach dem Oberbegriff von Anspruch 1 und ein Verfahren zum Betrieb dieser Vorrichtung.The invention relates to a device according to the preamble of claim 1 and a method for operating this device.

Eine derartige Vorrichtung ist aus der deutschen Patentanmeldung P 33 o2 871.o bekannt. Der grundlegende Vorteil dieser bekannten Vorrichtung besteht darin, daß sie auf besonders einfache Art die Herstellung von verarbeitungsfertigem Mörtel gestattet, indem die einzelnen Materialkomponenten in einem gemeinsamen Silo auf der Baustelle vorrätig gehalten und diesem Silo automatisch dosiert entnommen werden, so daß der Aufwand zur Herstellung des verarbeitungsbereiten Mörtels erheblich reduziert wird und Mischungsfehler weitgehend ausgeschaltet werden. Bei dieser bekannten Vorrichtung erfolgt die Dosierung der einzelnen Komponenten volumetrisch, was für viele praktische Anwendungsfälle eine hinreichende Dosiergenauigkeit ermöglicht.Such a device is known from German patent application P 33 02 871.o. The basic advantage of this known device is that it allows the production of ready-to-use mortar in a particularly simple manner by keeping the individual material components in stock in a common silo at the construction site and automatically removing them from this silo, so that the effort required to produce the ready-to-use mortar is significantly reduced and mixing errors are largely eliminated. In this known device, the individual components are metered volumetrically, which enables sufficient metering accuracy for many practical applications.

Demgegenüber sind nun aber in neuerer Zeit in bestimmten Ländern verschärfte Vorschriften in Kraft getreten, mit welchen eine gravimetrische Dosierung der einzelnen Mörtel-Komponenten verlangt wird.In contrast, more stringent regulations have now come into force in certain countries with which gravimetric dosing of the individual mortar components is required.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, unter Beibehaltung und weiterer Verbesserung des Bedienungskomforts und der allgemeinen Vorteile einer herkömmlichen derartigen Vorrichtung diese so auszugestalten, daß eine noch genauere Dosierung möglich ist.Proceeding from this, the invention is based on the object, while maintaining and further improving the ease of use and the general advantages of a conventional device of this type, in such a way that an even more precise metering is possible.

Diese Aufgabe wird gelöst durch den kennzeichnenden Teil von Anspruch 1. Durch die danach vorgesehenen, unmittelbar unterhalb des eine vertikale Teilung aufweisenden Behälters angeordneten Förderschnecken und die nachgeordnete Waage ist es möglich, in kürzester Zeit eine betriebsbereite Anlage auf einer Baustelle zu installieren, welche Mörtel einer exakt vorgegebenen Zusammensetzung liefern kann. Durch die erfindungsgemäße Ausgestaltung bilden nämlich Materialvorratsbehälter, Dosiereinrichtung und Mischeinrichtung eine Einheit, können also z.B. von einem Kranfahrzeug oder dergleichen mittels eines einzigen Hakenansatzes ergrif- .fen und auf- und abgeladen werden. Unmittelbar nach dem Absetzen der Vorrichtung an der Baustelle ist diese betriebsbereit, wobei die Förderschnecken eine zuverlässige Zwangsentnahme der einzelnen Materialkomponenten und--in der Verbindung mit der Waage eine exakte Dosierung sicherstellen.This object is achieved by the characterizing part of claim 1. By means of the screw conveyors provided thereafter, arranged immediately below the container having a vertical division and the downstream scales, it is possible to install a ready-to-operate system on a construction site in a very short time, which mortar one can deliver exactly the specified composition. Because of the configuration according to the invention, the material storage container, the metering device and the mixing device form one unit, i.e. seized by a crane vehicle or the like by means of a single hook attachment and loaded and unloaded. Immediately after the device has been set down at the construction site, it is ready for operation, the screw conveyors ensuring reliable forced removal of the individual material components and - in connection with the scales, an exact dosage.

Vorteilhafterweise wird die Erfindung gemäß Anspruch 2 weiter ausgestaltet, wobei hierdurch ein Verschwenken der Förderschnecken und ein hierfür erforderlicher Mechanismus entbehrlich wird.Advantageously, the invention is further developed according to claim 2, whereby pivoting of the screw conveyors and a mechanism required for this is unnecessary.

Die Ausbildung der Waage nach Anspruch 3 gewährleistet eine hohe Betriebssicherheit auch unter harten Einsatzbedingungen, wie diese auf Baustellen anzutreffen sind.The design of the scale according to claim 3 ensures a high level of operational reliability even under harsh operating conditions, such as those found on construction sites.

Der gemäß Anspruch 4 vorgesehene Kraftaufnehmer ermöglicht eine einfache Umsetzung der mechanischen Auslenkung der Waage in ein elektrisches Signal, welches zur Steuerung der Vorrichtung weiterverarbeitet werden kann.The force transducer provided according to claim 4 enables a simple conversion of the mechanical deflection of the balance into an electrical signal, which can be further processed to control the device.

Gemäß Anspruch 5 wird erreicht, daß die Mischeinrichtung voll in die Dosiereinrichtung integriert wird, was Platz spart und die Arbeitsgeschwindigkeit der Vorrichtung erhöht.According to claim 5 it is achieved that the mixing device is fully integrated into the metering device, which saves space and increases the operating speed of the device.

Die Maßnahmen nach Anspruch 6 und 7 ermöglichen es, die dem Behälter nachgeordnete Auslaßöffnung ständig offen zu halten, indem in der Mischphase die axial fördernden Mischeinrichtungen von der Austragsöffnung wegfördernd betrieben werden und in einer sich daran anschließenden Austragsphase in ihrer Drehrichtung umgeschaltet werden können.The measures according to claims 6 and 7 make it possible to keep the outlet opening downstream of the container open at all times by operating the axially conveying mixing devices in the mixing phase in a conveying manner and by switching their direction of rotation in a subsequent discharge phase.

Die Wasserzuführung gemäß Anspruch 8 ermöglicht eine gleichermaßen einfache wie exakte Wasserdosierung zu den rieselfähigen Mischkomponenten.The water supply according to claim 8 enables an equally simple and exact water metering to the free-flowing mixing components.

Die Ausgestaltung der Auslaßöffnung nach Anspruch 9 verhindert, daß aus dem Mischbereich des Behälters durchfeuchtetes Mischgut nach oben geschleudert wird und sich auf diese Weise der Förderbereich der Förderschnecken zusetzt.The design of the outlet opening according to claim 9 prevents that from the mixing area of the container, soaked mixture is thrown upwards and in this way the conveying area of the screw conveyors becomes clogged.

Eine Rechner- und Steuereinrichtung, wie sie gemäß Anspruch lo vorgesehen ist, ermöglicht es z.B. über eine vorprogrammierte Dosierung durch einfachen Knopfdruck Mörtel mit einer gewünschten Zusammensetzung und Konsistenz herzustellen.A computer and control device, as provided in claim 10, enables e.g. Use a pre-programmed dosage to produce mortar with the desired composition and consistency by simply pressing a button.

Bei der Ausgestaltung nach Anspruch 11 ist es möglich, über den danach vorgesehenen Haken den Behälter samt Entnahme- und Dosiereinrichtung einfach auf ein Transportfahrzeug zu ziehen bzw. diesen vom Fahrzeug abzusetzen.In the embodiment according to claim 11, it is possible to simply pull the container together with the removal and metering device onto a transport vehicle or to set it down from the vehicle via the hook provided thereafter.

Die Konstruktion gemäß Anspruch 12 ermöglicht es, den Behälter im Liegen, also auch in Transportstellung auf einem Fahrzeug bequem zu befüllen.The construction according to claim 12 makes it possible to comfortably fill the container lying down, that is to say also in the transport position on a vehicle.

Die Lösbarkeit der Entnahme- und Dosiereinrichtung vom Behälter ermöglicht es, auf eine Baustelle mit der Erstanlieferung einen zweiten Behälter zu liefern, wobei die Entnahme- und Dosiereinrichtung nach der Entleerung eines ersten Behälters an den zweiten Behälter problemlos umgesetzt werden kann.The fact that the removal and dosing device can be detached from the container makes it possible to deliver a second container to a construction site with the initial delivery, the removal and dosing device being able to be easily implemented after the first container has been emptied to the second container.

Die Betriebsweise der erfindungsgemäßen Vorrichtung nach Anspruch 14 ermöglicht es mit einer einzigen Waage auszukommen, so daß die mechanisch-elektrischen Umsetzeinrichtungen ebenfalls nur in einfacher Ausführungsform vorgesehen werden müssen.The operation of the device according to the invention according to claim 14 makes it possible to manage with a single scale, so that the mechanical-electrical conversion devices also only have to be provided in a simple embodiment.

Die weitere Ausgestaltung des Verfahrens nach Anspruch 15 ermöglicht eine Vormischung bereits während der Dosierung, so daß von vornherein größere Materialinhomogenitäten vermieden werden.The further embodiment of the method according to claim 15 enables premixing already during metering, so that larger material inhomogeneities are avoided from the outset.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der folgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der Zeichnung. Dabei zeigen

  • Fig. 1 eine schematische vertikale Schnittdarstellung und
  • Fig. 2 eine schematische horizontale Schnittdarstellung.
Further features, advantages and details of the invention emerge from the following description of a preferred exemplary embodiment with reference to the drawing. Show
  • Fig. 1 is a schematic vertical sectional view and
  • Fig. 2 is a schematic horizontal sectional view.

Eine in der Zeichnung dargestellte erfindungsgemäße Vorrichtung umfaßt einen siloartigen Vorratsbehälter 1, welcher durch vertikal verlaufende Trennwände 2 im Ausführungsbeispiel in zwei Teilbehälter 3, 4 unterteilt ist. An der Unterseite jedes Teilbehälters 3, 4 ist eine Auslaßöffnung 5, 6 vorgesehen. Unterhalb der Auslaßöffnungen 5, 6 ist wiederum jeweils ein Förderkanal 7, 8 angeordnet.A device according to the invention shown in the drawing comprises a silo-like storage container 1, which in the exemplary embodiment is divided into two partial containers 3, 4 by vertically extending partition walls 2. An outlet opening 5, 6 is provided on the underside of each partial container 3, 4. A delivery channel 7, 8 is in turn arranged below each of the outlet openings 5, 6.

In jedem Förderkanal 7, 8 ist eine diesen ausfüllende Förderschnecke 9, 1o gelagert, wovon jede über eine Welle 11 bzw. 12 und einen Motor-13 bzw. 14 angetrieben wird.In each conveyor channel 7, 8 there is a conveyor screw 9, 10f filling it, each of which is driven by a shaft 11 or 12 and a motor 13 or 14.

Am Ende jedes Förderkanals 7, 8 ist im Boden 15 desselben je eine Auslaßöffnung 16 bzw. 17 vorgesehen. Die Auslaßöffnungen 16, 17 sind durch eigenelastische, unter Druck nach unten öffnende Klappen 18 aus Kunststoff abgedeckt. Die Auslaßöffnungen 16, 17 münden nach unten in einen Behälter 19.At the end of each delivery channel 7, 8, an outlet opening 16 and 17 is provided in the bottom 15 thereof. The outlet openings 16, 17 are covered by inherently elastic flaps 18 made of plastic that open downward under pressure. The outlet openings 16, 17 open down into a container 19th

In dem Behälter 19, der sich über die ganze Breite der Förderkanäle 7, 8 erstreckt, ist eine Mischeinrichtung 2o angeordnet. Die Mischeinrichtung 2o umfaßt eine Mehrzahl von Mischwerkzeugen, welche an einer gemeinsamen Welle 21 befestigt sind, die durch einen Motor 22 angetrieben wird und in einem nur schematisch dargestellten Lager 23 gelagert ist.A mixing device 20 is arranged in the container 19, which extends over the entire width of the conveying channels 7, 8. The mixing device 2o comprises a plurality of mixing tools which are fastened to a common shaft 21 which is driven by a motor 22 and is mounted in a bearing 23 which is only shown schematically.

Als Mischwerkzeug ist im Bereich der Austragsöffnung 24 und unterhalb der Auslaßöffnung 16 ein Schneckenabschnitt 25 vorgesehen. Daran schließen sich über Haltearme 26 an der Welle 21 befestigte tangential umlaufende Mischschaufeln 27 an, welche - wie in der Zeichnung nicht dargestellt - zur axialen Richtung angestellt sind. Im Endbereich des Behälters 19 sind schließlich noch über Haltearme 28 an der Welle 21 befestigte, den Behälter 19 ausfüllende Mischflügel 29 vorgesehen.A screw section 25 is provided as a mixing tool in the area of the discharge opening 24 and below the outlet opening 16. This is followed by holding arms 26 attached to the shaft 21 tangentially rotating mixing blades 27, which - as is not shown in the drawing - are set to the axial direction. Finally, in the end region of the container 19, mixing blades 29 are provided, which are attached to the shaft 21 and hold the container 19, via holding arms 28.

In den Behälter 19 mündet eine Wasserleitung 3o, welche ebenfalls nur schematisch dargestellt ist, und in welcher ein elektrisch betätigbares Dosierventil angeordnet ist.A water pipe 3o opens into the container 19, which is also only shown schematically and in which an electrically actuated metering valve is arranged.

Die Deckenwand 31 des Behälters 19 ist unabhängig vom Boden 15 der Förderkanäle 7, 8, d.h. es besteht keine feste Verbindung zwischen den Förderkanälen 7, 8 und dem Behälter 19. Der Behälter 19 ist vielmehr über Tragarme 32, 33 mit den Waagarmen 34, 35 einer Balkenwaage 36 verbunden, welche in den Lagern 37, 38 schwenkbar gelagert sind. Die Lager 37, 38 sind an der Gehäuseabdeckung 39 befestigt, welche mit dem Behälter 1 bei 4o verbunden ist.The top wall 31 of the container 19 is independent of the bottom 15 of the delivery channels 7, 8, i.e. there is no fixed connection between the conveying channels 7, 8 and the container 19. The container 19 is rather connected via support arms 32, 33 to the weighing arms 34, 35 of a beam balance 36 which are pivotably mounted in the bearings 37, 38. The bearings 37, 38 are attached to the housing cover 39, which is connected to the container 1 at 4o.

Die Waagarme 34, 35 drücken gegen einen nur schematisch dargestellten Kraftaufnehmer 41, in welchem z.B. über Dehnungsmeßstreifen die durch das Gewicht des Behälters 19 bzw. des darin befindlichen Materials anliegenden Kräfte in elektrische Signale umgesetzt werden.The weighing arms 34, 35 press against a force transducer 41, only shown schematically, in which e.g. Strain gauges convert the forces applied by the weight of the container 19 or the material contained therein into electrical signals.

Die vorstehend beschriebene Vorrichtung wird so betrieben, daß über die nicht dargestellte Rechner- und Speichereinrichtung eine bestimmte Chargenquantität und Zusammensetzung vorgewählt wird. Über eine automatische Programmsteuerung wird dann zunächst die eine Förderschnecke 9 in Bewegung gesetzt und gleichzeitig der Motor 22 der Mischeinrichtung 20. Es wird auf diese Weise eine erste Mörtel-Komponente, z.B. Bindemittel (Zement) über den Förderkanal 7 und die Auslaßöffnung 16 in den Behälter 19 gegeben und die Gewichtsveränderung über die Waage 36 erfaßt. Ist eine vorbestimmte Gewichts- änderung erreicht, wird die Förderschnecke 9 stillgesetzt. Die Mischeinrichtung 2o läuft weiter, wobei sie axial von der Auslaßöffnung 16 bzw. der Austragsöffnung 24 wegfördert. Es wird nun in gleicher Weise die Dosierung einer zweiten Mörtel-Komponente, z.B. Sand, über die Förderschnecke 1o vorgenommen. Die beiden Komponenten werden bereits während der Zugabe der zweiten Komponente gemischt. Bereits vor der Zugabe der ersten Mörtel-Komponente kann über die Wasserleitung 3o Wasser in einer ebenfalls vorprogrammierten Quantität zugegeben und beigemischt werden. Nach Ablauf einer vorprogrammierten Mischzeit wird die Drehrichtung des Motors 22 umgekehrt und durch die Austragsöffnung 24 verwendungsfertiger Mörtel ausgetragen. Die Gesamtanordnung ist dabei so getroffen, daß der Reinigungsaufwand, welcher bei herkömmlichen Mörtelmischmaschinen üblich ist, minimal ist, da das gesamte System weitgehend selbstreinigend ausgebildet werden kann.The device described above is operated in such a way that a certain batch quantity and composition are preselected via the computer and storage device, not shown. Via an automatic program control, the one screw conveyor 9 is first set in motion and at the same time the motor 22 of the mixing device 2 0 . In this way, a first mortar component, for example binding agent (cement), is introduced into the container 19 via the conveying channel 7 and the outlet opening 16, and the change in weight is recorded via the scale 36. If a predetermined change in weight has been reached, the screw conveyor 9 is stopped. The mixing device 2o continues to run, axially conveying it away from the outlet opening 16 or the discharge opening 24. The metering of a second mortar component, for example sand, is now carried out in the same way via the screw conveyor 10. The two components are already mixed during the addition of the second component. Even before the addition of the first mortar component, water can also be added and mixed in via the water pipe 3o in a likewise preprogrammed quantity. After a pre-programmed mixing time, the direction of rotation of the motor 22 is reversed and discharged through the discharge opening 24 ready-to-use mortar. The overall arrangement is such that the cleaning effort, which is customary in conventional mortar mixing machines, is minimal, since the entire system can be largely self-cleaning.

Claims (16)

1. Vorrichtung zur Aufbewahrung, Dosierung und Mischung von Mörtel-Komponenten umfassend einen siloartigen Behälter mit vertikal voneinander getrennten Teilbehältern, an deren Unterseite je eine Auslaßöffnung angeordnet ist, wobei unterhalb der Auslaßöffnungen eine Entnahme- und Dosiereinrichtung angeordnet ist, dadurch gekennzeichnet, daß die Entnahme- und Dosiereinrichtung durch wenigstens eine Förderschnecke (9, 10) gebildet ist, welche Material aus einem Bereich unterhalb einer Auslaßöffnung (16, 17) in einen mit einer Waage (36) verbundenen Behälter (19) fördert, wobei die Waage (36) mit dem Antrieb (Motor 13, 14) der Förderschnecke (9, 10) gekoppelt ist.1. A device for storing, dosing and mixing mortar components comprising a silo-like container with vertically separate sub-containers, on the underside of which an outlet opening is arranged, a removal and dosing device being arranged below the outlet openings, characterized in that the removal - and metering device by at least one screw conveyor (9, 1 0) is formed, which material from an area below an outlet port (16, 17) conveys in an input connected to a balance (36) container (19), said scale (36) with the drive (motor 13, 14) of the screw conveyor (9, 1 0 ) is coupled. 2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß jeder Auslaßöffnung (16, 17) eine Förderschnecke (9, 10) zugeordnet ist.2. Device according to claim 1, characterized in that each outlet opening (16, 17) is assigned a screw conveyor (9, 1 0 ). 3. Vorrichtung nach Patentanspruch 1 oder 2, dadurch gekennzeichnet,daß die Waage (36) als Balkenwaage ausgebildet ist.3. Device according to claim 1 or 2, characterized in that the balance (36) is designed as a beam balance. 4. Vorrichtung nach Patentanspruch 3, dadurch gekennzeichnet, daß die Kraftaufnehmer der Balkenwaage als Dehnungsmeßstreifen ausgebildet sind.4. Device according to claim 3, characterized in that the force transducers of the beam balance are designed as strain gauges. 5. Vorrichtung nach einem der Patentansprüche 1 bis 4, dadurch gekennzeichnet, daß der Behälter (19) eine Mischeinrichtung (2o) umfaßt.5. Device according to one of the claims 1 to 4, characterized in that the container (19) comprises a mixing device (2o). 6. Vorrichtung nach Patentanspruch 5, dadurch gekennzeichnet, daß die Mischeinrichtung Axial-Fördereinrichtungen (Schneckenabschnitt 25, Mischflügel 27, 29) umfaßt.6. Device according to claim 5, characterized in that the mixing device comprises axial conveying devices (screw section 25, mixing blades 27, 29). 7. Vorrichtung nach Patentanspruch 6, dadurch gekennzeichnet, daß die Mischeinrichtung (2o) richtungsumkehrbar angetrieben ist.7. The device according to claim 6, characterized in that the mixing device (2o) is reversibly driven. 8. Vorrichtung nach einem der Patentansprüche 1 bis 7, dadurch gekennzeichnet, daß in den Behältern (19) eine Wasserzuführleitung (3o) mit Dosierventil mündet.8. Device according to one of claims 1 to 7, characterized in that in the containers (19) opens a water supply line (3o) with a metering valve. 9. Vorrichtung nach einem der Patentansprüche 1 bis 8, dadurch gekennzeichnet, daß am Ende des Förderweges der Förderschnecken (9, 10) eine in den Behälter (19) mündende Auslaßöffnung (16, 17) vorgesehen ist, welche durch unter Druck nach unten öffnenden, eigenelastische Klappen (18) abgeschlossen ist.9. Device according to one of the claims 1 to 8, characterized in that at the end of the conveying path of the screw conveyors (9, 1 0 ) in the container (19) opening outlet opening (16, 17) is provided, which by downward pressure opening, self-elastic flaps (18) is completed. 10. Vorrichtung nach einem der Patentansprüche 1 bis 9, dadurch gekennzeichnet, daß eine die Antriebsmotoren (13, 14) steuernde, mit der Waage (36) verbundene Rechner- und Speichereinrichtung vorgesehen ist.1 0 . Device according to one of the claims 1 to 9, characterized in that a computer and memory device is provided which controls the drive motors (13, 14) and is connected to the balance (36). 11. Vorrichtung nach einem der Patentansprüche 1 bis 10, dadurch gekennzeichnet, daß der Behälter (19) mit einem Transport-Haken versehen ist.11. Device according to one of the claims 1 to 1 0 , characterized in that the container (19) is provided with a transport hook. 12. Vorrichtung nach einem der Patentansprüche 1 bis 11, dadurch gekennzeichnet, daß an den Seitenwänden des Behälters (19) verschließbare Ladeöffnungen angeordnet sind.12. Device according to one of the claims 1 to 11, characterized in that closable loading openings are arranged on the side walls of the container (19). 13. Vorrichtung nach einem der Patentansprüche 1 bis 12, dadurch gekennzeichnet, daß die Entnahme- und Dosiereinrichtung mit dem Behälter lösbar verbunden ist.13. Device according to one of the claims 1 to 12, characterized in that the removal and metering device is detachably connected to the container. 14. Verfahren zum Betrieb einer Vorrichtung nach einem der Patentansprüche 1 bis 13, dadurch gekennzeichnet, daß die Förderschnecken (9, 10) nacheinander jeweils solange angetrieben werden, bis die Waage eine für die jeweilige Materialkomponente vorgesehene Gewichtszunahme registriert.14. A method of operating a device according to one of the claims 1 to 13, characterized in that the screw conveyors (9, 1 0 ) are successively driven in each case until the scale registers a weight increase provided for the respective material component. 15. Verfahren nach Patentanspruch 14, dadurch gekennzeichnet, daß während des Betriebes der Förderschnecken (9, 10) die Mischeinrichtung (2o) angetrieben wird.15. The method according to claim 14, characterized in that the mixing device (2o) is driven during the operation of the screw conveyors (9, 1 0 ). 16. Verfahren nach Patentanspruch 14 oder 15, dadurch gekennzeichnet, daß die einzelnen Mörtel-Komponenten Wasser, Bindemittel und Sand nacheinander dosiert und miteinander vermischt werden.16. The method according to claim 14 or 15, characterized in that the individual mortar components water, binder and sand are metered in succession and mixed together.
EP84114881A 1983-12-29 1984-12-06 Device for storing, batching and mixing of mortar components Expired - Lifetime EP0150353B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114881T ATE68399T1 (en) 1983-12-29 1984-12-06 DEVICE FOR STORAGE, DOSING AND MIXING OF MORTAR MATERIAL COMPONENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833347417 DE3347417A1 (en) 1983-12-29 1983-12-29 DEVICE FOR STORING, DOSING AND MIXING MORTAR MATERIAL COMPONENTS AND METHOD FOR OPERATING THE DEVICE
DE3347417 1983-12-29

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EP0150353A1 true EP0150353A1 (en) 1985-08-07
EP0150353B1 EP0150353B1 (en) 1991-10-16

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AT (1) ATE68399T1 (en)
DE (2) DE3347417A1 (en)
ZA (1) ZA8410088B (en)

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WO1987005255A1 (en) * 1986-02-27 1987-09-11 Pharmakopius Limited Blending particulate materials
EP0245180A1 (en) * 1986-05-07 1987-11-11 Pierre Gilles Method for making walls of puddled clay or stabilized earth, adapted projecting machine therefor and wall so obtained
EP0410316A1 (en) * 1989-07-22 1991-01-30 Georg Badum Mixing and proportioning device for construction for plastering mortar or similar
GB2251559A (en) * 1991-01-11 1992-07-15 Lawrence Stuart Darvill Improvements in or relating to cement mixing
US5358331A (en) * 1986-02-27 1994-10-25 John William Cruse Blending device for particulate material, with helical conveyer
FR2743509A1 (en) * 1996-01-17 1997-07-18 Henkel Ecolab Snc Mixer e.g. for ingredients of detergent compound
US7270469B2 (en) * 2004-06-09 2007-09-18 Cemen-Tech, Inc. Apparatus and method for adding pigmentation to concrete mix

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DE3532722A1 (en) * 1985-09-13 1987-03-26 Heidelberger Zement Ag DEVICE AND METHOD FOR THE CONTINUOUS PROVISION OF HYDRAULIC SETTING MATERIAL
US5354127A (en) * 1990-04-10 1994-10-11 William Del Zotto Segmented mixing auger
DE9115823U1 (en) * 1991-12-20 1992-02-20 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Equipment for solidifying asbestos-containing materials
CN103753702B (en) * 2013-12-26 2016-02-17 杭州山海机械有限公司 A kind of mortar mixer with automatic cleaning function

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DE2935997A1 (en) * 1979-02-01 1980-08-07 Bauakademie Ddr Dosage control system in bulk concrete mixing plants - calculates correction for volumes of additives and mixing water transmitting data to computer
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Cited By (10)

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WO1987005255A1 (en) * 1986-02-27 1987-09-11 Pharmakopius Limited Blending particulate materials
US5358331A (en) * 1986-02-27 1994-10-25 John William Cruse Blending device for particulate material, with helical conveyer
EP0245180A1 (en) * 1986-05-07 1987-11-11 Pierre Gilles Method for making walls of puddled clay or stabilized earth, adapted projecting machine therefor and wall so obtained
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EP0410316A1 (en) * 1989-07-22 1991-01-30 Georg Badum Mixing and proportioning device for construction for plastering mortar or similar
GB2251559A (en) * 1991-01-11 1992-07-15 Lawrence Stuart Darvill Improvements in or relating to cement mixing
FR2743509A1 (en) * 1996-01-17 1997-07-18 Henkel Ecolab Snc Mixer e.g. for ingredients of detergent compound
US7270469B2 (en) * 2004-06-09 2007-09-18 Cemen-Tech, Inc. Apparatus and method for adding pigmentation to concrete mix

Also Published As

Publication number Publication date
EP0150353B1 (en) 1991-10-16
DE3485180D1 (en) 1991-11-21
DE3347417A1 (en) 1985-07-11
ZA8410088B (en) 1985-08-28
ATE68399T1 (en) 1991-11-15

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