EP0268991B1 - Device for making mixtures ready to be used from bulk goods kept ready in a silo - Google Patents

Device for making mixtures ready to be used from bulk goods kept ready in a silo Download PDF

Info

Publication number
EP0268991B1
EP0268991B1 EP87117023A EP87117023A EP0268991B1 EP 0268991 B1 EP0268991 B1 EP 0268991B1 EP 87117023 A EP87117023 A EP 87117023A EP 87117023 A EP87117023 A EP 87117023A EP 0268991 B1 EP0268991 B1 EP 0268991B1
Authority
EP
European Patent Office
Prior art keywords
silo
outlet
shaft
mixing
tubular housing
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.)
Revoked
Application number
EP87117023A
Other languages
German (de)
French (fr)
Other versions
EP0268991A2 (en
EP0268991A3 (en
Inventor
August Tepe
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.)
Maschinen- und Apparatebau August Tepe GmbH
Original Assignee
Maschinen- und Apparatebau August Tepe GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6315049&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0268991(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinen- und Apparatebau August Tepe GmbH filed Critical Maschinen- und Apparatebau August Tepe GmbH
Priority to AT87117023T priority Critical patent/ATE61966T1/en
Publication of EP0268991A2 publication Critical patent/EP0268991A2/en
Publication of EP0268991A3 publication Critical patent/EP0268991A3/en
Application granted granted Critical
Publication of EP0268991B1 publication Critical patent/EP0268991B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • 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 producing ready-to-use mixtures from bulk material, such as e.g. Cement and sand, with a silo for mobile use with several chambers for separate intake of the different bulk goods, one silo outlet per chamber, one dosing device on each silo outlet for the metered discharge of the bulk material, one discharge opening of each dosing device at the assigned input opening of a one equipped with a mixed drive Mixing device can be connected.
  • bulk material such as e.g. Cement and sand
  • Such a device is known from EP-A-0 093 473, in which the metering devices are designed as screw conveyors, the axes of which extend transversely to the longitudinal direction of the silos, so that the screw conveyors discharge the bulk material from the chambers in an approximately horizontal direction when the silo is upright .
  • the screw conveyors are each connected to a conveyor drive, and one of the screw conveyors is axially coupled to a mixing device, so that the conveyor drive of this screw conveyor is identical to the mixer drive.
  • the entire weight of the bulk material columns above the metering devices rests on the transverse axes of the screw conveyors, the resulting pressure being transferred via the axes of the screw conveyors to the axle bearings, which are therefore subject to greater wear.
  • the metering devices below the silo outlets have a relatively large overall height; As the silos are transported lying flat on vehicles and the overall size of the silos is therefore limited, the overall height of the dosing devices is at the expense of the filling volume of the silos.
  • the object of the invention is therefore to develop a device of the type mentioned at the outset in such a way that it works more reliably and less prone to faults, with a reduced overall height of the metering devices, and permits the bulk material components to be dispensed independently of the mixer speed.
  • the metering devices are designed as cellular wheel sluices, each of which has a wheel chamber lying transversely to the longitudinal direction of the silo under the silo outlets and a cellular wheel in each wheel chamber, which is by means of a in the longitudinal direction of the silo stored and out of the wheel chamber stub shaft can be driven by a cellular wheel drive with adjustable speed.
  • the advantages of the invention are, in particular, that the bulk material columns do not exert any undesirable forces on the stub shafts aligned in the longitudinal direction of the silo. A heavy load on the axle bearings of the dosing devices is thus avoided.
  • the volume of the silo chambers can be increased accordingly with the same overall dimensions due to the flat overall height of the metering devices designed as cellular wheel sluices.
  • the device according to the invention each has an independent cellular wheel drive and an independent mixing drive for the mixing device, so that the quantity of the various bulk material components can be discharged independently of one another and independently of the mixer speed.
  • the bulk material emerging from the silo outlet flows into the metering devices in a continuous flow and is introduced in metered quantity immediately after leaving the metering devices into the mixing device.
  • ready-to-use mortar emerges from the mixing device, which is then ready for further processing at the construction site.
  • the device is ready for connections of current for the drive motors of the metering devices and the mixing device and the supply of water to the mixing device.
  • the metering device and the mixing device can remain connected to the construction site silo if the silo is picked up and transported away by a truck, for example for refilling. Immediately after the new construction site silo has been refilled, the device can be put back into operation in order to produce ready-to-use mixtures.
  • the metering devices in the form of cellular wheel sluices can divide the flow of bulk material continuously emerging from the silo outlet into smaller partial quantities, each partial quantity corresponding to the filling volume of one cell of the cellular wheel. Depending on the speed of rotation of the cellular wheel, a certain amount is therefore removed from the silo or fed to the mixing device in a certain time unit.
  • a cellular wheel sluice is structurally simple and operates relatively reliably. The dosage is relatively accurate and can be changed by changing the speed of the Cell wheel can also be changed easily.
  • the cellular wheel sluice advantageously forms a closure of the silo outlet at the same time, because the silo contents are only discharged when the cellular wheel rotates in the wheel chamber.
  • the cellular wheel sluice can be connected to a silo outlet in a structurally very simple manner.
  • the silo outlet has a flange to which the wheel chamber is flanged.
  • a cover plate covering the wheel chamber except for an outlet area is inserted in the silo outlet.
  • This cover plate can also be connected to the wheel chamber, so that the silo container itself remains essentially unchanged and only the cellular wheel sluice of the metering device is flanged together with the cover plate from the outside to the silo outlet.
  • Each cell wheel consists of a central disc and star-shaped, upright flat bars. Two adjacent flat bars each delimit a cell, the edges of the upstanding flat bars brushing closely against the upper and lower walls of the wheel chamber when the cell wheel rotates. If a cell passes under the inlet area in the cover plate, bulk material that slides out of the silo outlet enters the cell and is carried along by the rotating cell wheel.
  • each flat bar in the attachment area on the central disk runs obliquely against the direction of rotation and an outer in Section bent in the direction of rotation.
  • the portions of the bulk material carried along by the cellular wheel can fall out of the wheel chamber again, since a lower closure plate of the wheel chamber has an outlet which is equipped with an outlet flange.
  • the outlet flange serves to facilitate connection to the further devices connected downstream, such as the mixing device, which are designed as cellular wheel sluices.
  • the bulk goods located in the chambers of the construction site silo must be able to fall evenly out of the silo outlet so that a uniform loading of the metering devices designed as cellular wheel locks is guaranteed. Forming bridges in the bulk material would interfere with the required smooth wake of the bulk material.
  • at least one stirring finger protruding into the silo container is preferably arranged on the central disk of each cell wheel. During the operation of the metering devices, the agitator fingers rotate with the cell wheel, so that bulk material that slides in the area of the silo outlet is loosened continuously and can enter the cell wheel sluice in a steady flow.
  • the mixing device downstream of the metering devices has inlets which can be connected to the outlet flanges of the metering device by means of corresponding flanges.
  • the connection with flanges is sufficiently firm, so that on special brackets for attaching the mixing device on the silo can be omitted.
  • the mixing device preferably has a tube housing hanging approximately horizontally below the outlet flanges, in which a shaft driven by the mixer drive runs, the shaft being equipped with screw vanes in the sections corresponding to the inlets of the mixing device and in the adjoining section approximately radially projecting mixing vanes Has.
  • the screw vanes convey the bulk material quantities emerging from the outlets of the metering devices into the mixing area.
  • the mixing blades cause intensive mixing. Here, e.g. then, if mortar mixtures are to be produced, the required water is also added.
  • the finished mixture can emerge from the mixing device, since the tube housing has an end outlet at the front end, which corresponds to the section of the shaft with the mixing blades.
  • each mixing blade consists of pairs of tabs projecting radially from the shaft side by side, which are each connected to one another at the free ends by a bridge tab.
  • Each tab is set obliquely on the shaft with an angle of attack, so that during the revolutions of the shaft, the mixture to be produced is also conveyed in the longitudinal direction of the tube housing Mixing device takes place.
  • each bridge plate is placed between the plates with an angle of inclination, which makes the mixing of the mixture components more intensive.
  • the mixing blades are offset in the longitudinal direction of the shaft, which also contributes to improved mixing.
  • the mixing device At its end facing away from the end outlet of the tubular housing, the mixing device has the mixer drive motor with an associated gear for the shaft.
  • the drive motor and transmission preferably form a structural unit which is particularly advantageously hinged to a front end of the tubular housing. This makes cleaning the mixing device easier. After the unit formed from the drive motor and the gear unit has been folded down, the mixing device, in particular the tubular housing, can be sprayed out with water and thereby easily cleaned.
  • the shaft with the screw vanes and the mixing vanes can be inserted into the tubular housing and is non-positively connected to the gear unit when the drive motor is folded onto the tubular housing, since the gear unit has a plug-in coupling that can be operatively connected to the drive-side end of the shaft.
  • the tubular housing has, with particular advantage, a removable end plate in which the associated end of the shaft is mounted. After removing the end shield, the shaft can be pulled out of the tube housing, which makes cleaning and flushing the tube housing and shaft easier.
  • the transmission has a sealing flange on the output side and the tubular housing has an elastic sealing element at the end facing the sealing flange.
  • the drive unit can be locked by means of appropriate tensioning elements, closures or the like after it has been folded onto the tube housing, so that the sealing flange presses against the elastic sealing element of the tube housing.
  • FIG. 1 shows a construction site silo 1 in a schematic side view. It consists of an outer chamber 2 and an inner chamber 3 inserted therein. On the underside, the chambers 2, 3 have outlets 4, 5, from which the in the Chambers 2,3 stored bulk goods can leak. A metering device 6,7 is connected to the free ends of the outlets 4, 5. Each metering device has an outlet 8.9. Inlets 8, 11 of a mixing device are connected to the outlets 8, 9 and have a tubular housing 13 in which the bulk material components removed from the silo are mixed when mechanically movable mixer elements located in the tubular housing 13 by means of a transmission 37 and motor 36 Mixer drive are moved.
  • FIG. 2 shows a schematic sectional view of the silo outlets 4, 5.
  • Each silo outlet is equipped with an outlet flange 16, 17 at the free end.
  • Each outlet flange serves to flange a metering device 6, 7 (FIG. 1) onto the respective silo outlet. Since the metering devices 6, 7 are of identical design, the structure and the mode of operation of the metering devices are described below using the exemplary embodiment of the metering device 7 assigned to the silo outlet 4, which is visible here on the right-hand side of the drawing.
  • the metering device 7 of the silo outlet 4 consists of a cellular wheel sluice which comprises a wheel chamber 18 which can be flanged in front of the outlet flange 17 of the silo outlet 4 and in which a cellular wheel 19 is rotatably arranged.
  • a cover plate 21 which covers the wheel chamber 18 except for an inlet region 20.
  • Each cellular wheel 19 consists of a central disc 22 and star-shaped, upright flat bars 23. In the area above the central disc, the cover plate 21 has the shape of a cone protruding into the silo outlet.
  • a lower closure plate 25 of the wheel chamber 18 is equipped with a bearing 24 for the central disk 22, so that a shaft end 27 located on the driven side of a gear 26 which can be flanged under the closure plate 25 can rotate the central disk and thus the cellular wheel 19.
  • an electric motor provided for driving the cellular wheel is designated.
  • the closure plate 25 of the wheel chamber 18 has the outlet 9, which is equipped at the free end with an outlet flange.
  • the inlet 11 of the mixing device 12 (FIG. 1) is placed with a corresponding flange on the outlet flange 29 of the outlet 9 of the metering device 7.
  • the second outlet 5 of the silo is equipped with an identical metering device and is not described here in detail.
  • the outlet 8 of this metering device of the outlet 5 is also connected to an inlet 10 of the mixing device 12.
  • the tube housing of the mixing device is designated 13.
  • a rotatably driven shaft runs in the tubular housing 13 and is equipped with screw blades in the section corresponding to the inlets 10, 11 and mixing blades which project approximately radially in a subsequent section 32 has.
  • the tubular housing has an end outlet 33.
  • Each mixing blade consists of pairs of tabs 34 which project radially from the shaft and which are connected to each other at the free ends by a bridge tab 35 aligned parallel to the longitudinal axis of the shaft. As shown in FIG. 2, each tab 34 is set at an angle on the shaft 30. Each bridge plate 35 is placed between the plates 34 at a certain angle of inclination. In addition, the mixing blades are offset in the longitudinal direction of the shaft.
  • a drive motor 36 forms with its gear 37 for the shaft a mixer drive hinged to one end of the tubular housing 13.
  • the folding mechanism is not shown here, but can be designed as a simple hinge.
  • the transmission 37 has on the output side a plug-in coupling which can be brought into operative connection with the drive-side end of the shaft 30.
  • the gear 37 has a sealing flange 39 on the output side.
  • the tubular housing 13 has at its end facing the sealing flange 39 an elastic sealing element 40 with which the sealing flange 39 of the gear comes into contact.
  • FIG. 3 shows a plan view of a wheel chamber 18 of the metering device 7, which is open at the top, in order to clarify the design of the metering device 7.
  • the edge 41 of an additional cover plate, which delimits the inlet area into the metering device 7, is indicated on the side of the curved double dashed line.
  • the central disk 22, which is seated on the shaft end 27, carries the star-shaped, upright, flat bars 23. Each flat bar is oriented obliquely in the attachment area on the central disk against the direction of rotation and has an outer section bent in the direction of rotation. These sections of the flat bars protruding under the central disk 22 delimit a cell with a constant volume.
  • Each cell between two flat bars 23 passing the inlet area is filled with bulk material trailing out of the silo.
  • the bulk material flow from the silo is continuously broken down into equal parts.
  • the partial quantities successively fall into the outlet 9 and, as described above, reach the mixing device for further processing

Landscapes

  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

For the production of ready-to-use mixtures of bulk material, such as cement and sand, stored in a silo, in particular a construction- site silo for mobile use having a plurality of chambers each with a respectively assigned outlet, each silo outlet is equipped with a metering device for the metered discharge of bulk material, and a discharge aperture of each metering device is connected to the assigned input aperture of a mixing device. Each metering device is designed as a cellular wheel sluice lying approximately horizontally. The mixing device possesses inlets which can be connected to the outlet flanges of the metering devices by means of appropriate flanges. The mixing device possesses a tubular housing suspended approximately horizontally below the outlet flanges. A shaft, driven to rotate, runs in the tubular housing, is fitted with screw-type fins in the section corresponding to the inlets of the mixing device, and has mixing fins which project approximately radially in the adjoining section. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung gebrauchsfertiger Mischungen aus Schüttgut, wie z.B. Zement und Sand, mit einem Silo für mobilen Einsatz mit mehreren Kammern zur separaten Aufnahme des verschiedenen Schüttguts, einem Siloauslauf pro Kammer, einer Dosiereinrichtung an jedem Siloauslauf zum dosierten Austrag des Schüttguts, wobei eine Austragsöffnung jeder Dosiereinrichtung an die zugeordnete Eingabeöffnung einer mit einem Mischantrieb versehenen Mischeinrichtung anschließbar ist.The invention relates to a device for producing ready-to-use mixtures from bulk material, such as e.g. Cement and sand, with a silo for mobile use with several chambers for separate intake of the different bulk goods, one silo outlet per chamber, one dosing device on each silo outlet for the metered discharge of the bulk material, one discharge opening of each dosing device at the assigned input opening of a one equipped with a mixed drive Mixing device can be connected.

Aus der EP-A-0 093 473 ist eine derartige Vorrichtung bekannt, bei der die Dosiereinrichtungen als Förderschnecken ausgebildet sind, deren Achsen quer zur Längsrichtung der Silos verlaufen, so daß die Förderschnecken das Schüttgut bei aufrechtstehendem Silo in etwa horizontaler Richtung aus den Kammern austragen. Die Förderschnecken sind mit je einem Förderantrieb verbunden, und eine der Förderschnecken ist axial mit einer Mischeinrichtung gekoppelt, so daß der Förderantrieb dieser Förderschnecke mit dem Mischantrieb identisch ist. Dies hat zur Folge, daß die Dosierung einer der beiden Komponenten und die Mischung der beiden Komponenten nicht unabhängig voneinander einstellbar ist. Außerdem lastet bei dieser bekannten Vorrichtung das gesamte Gewicht der über den Dosiereinrichtungen stehenden Schüttgutsäulen auf den querliegenden Achsen der Förderschnecken, wobei sich der resultierende Druck über die Achsen der Förderschnecken auf die Achslager überträgt, die dadurch einem größeren Verschleiß unterliegen. Schließlich weisen die Dosiereinrichtungen unterhalb der Siloausläufe eine relativ große Bauhöhe auf; da die Silos in gefülltem Zustand auf Fahrzeugen liegend transportiert werden und die gesamte Größe der Silos daher begrenzt ist, geht die Bauhöhe der Dosiereinrichtungen zu Lasten des Füllvolumens der Silos.Such a device is known from EP-A-0 093 473, in which the metering devices are designed as screw conveyors, the axes of which extend transversely to the longitudinal direction of the silos, so that the screw conveyors discharge the bulk material from the chambers in an approximately horizontal direction when the silo is upright . The screw conveyors are each connected to a conveyor drive, and one of the screw conveyors is axially coupled to a mixing device, so that the conveyor drive of this screw conveyor is identical to the mixer drive. As a result, the Dosage of one of the two components and the mixture of the two components cannot be adjusted independently of one another. In addition, in this known device, the entire weight of the bulk material columns above the metering devices rests on the transverse axes of the screw conveyors, the resulting pressure being transferred via the axes of the screw conveyors to the axle bearings, which are therefore subject to greater wear. Finally, the metering devices below the silo outlets have a relatively large overall height; As the silos are transported lying flat on vehicles and the overall size of the silos is therefore limited, the overall height of the dosing devices is at the expense of the filling volume of the silos.

Aus der US-A-4 427 297 sind mehrere nebeneinander angeordnete Silos bekannt, die je eine als Zellenradschleuse ausgebildete Dosiereinrichtung aufweisen, welche unter den Siloausläufen je eine quer zur Längsrichtung des Silos liegende Radkammer, und in jeder Radkammer ein Zellenrad besitzt. Die Zellenräder in den Radkammern sitzen auf Wellen, welche in Längsrichtung durch die Silokammern hindurchgeführt sind und an entsprechende Zellenradantriebe auf den Silokammern angeschlossen sind. Die Zellenrad-Wellen sind auf diese Weise vollständig von Schüttgut umgeben und werden durch Reibung entsprechend abgebremst, ggfs. durch das Schüttgut auch unsymmetrisch belastet.From US-A-4 427 297 several juxtaposed silos are known, each having a metering device designed as a cellular wheel sluice, which has a wheel chamber lying transversely to the longitudinal direction of the silo under the silo outlets, and a cell wheel in each wheel chamber. The cellular wheels in the wheel chambers sit on shafts which are guided in the longitudinal direction through the silo chambers and are connected to corresponding cellular wheel drives on the silo chambers. In this way, the cellular wheel shafts are completely surrounded by bulk material and are braked accordingly by friction, possibly also asymmetrically loaded by the bulk material.

Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs genannten Art derart weiterzubilden, daß sie - bei verringerter Bauhöhe der Dosiereinrichtungen - zuverlässiger und störunanfälliger arbeitet und die Abgabe der Schüttgut-Komponenten unabhängig von der Mischergeschwindigkeit zuläßt.The object of the invention is therefore to develop a device of the type mentioned at the outset in such a way that it works more reliably and less prone to faults, with a reduced overall height of the metering devices, and permits the bulk material components to be dispensed independently of the mixer speed.

Diese Aufgabe wird bei der Vorrichtung der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß die Dosiereinrichtungen als Zellenradschleusen ausgebildet sind, welche unter den Siloausläufen je eine quer zur Längsrichtung des Silos liegende Radkammer und in jeder Radkammer ein Zellenrad aufweisen, das mittels eines in Längsrichtung des Silos gelagerten und aus der Radkammer herausgeführten Wellenstumpfes von je einem Zellenradantrieb mit einstellbarer Drehzahl antreibbar ist.This object is achieved according to the invention in the device of the type mentioned at the outset in that the metering devices are designed as cellular wheel sluices, each of which has a wheel chamber lying transversely to the longitudinal direction of the silo under the silo outlets and a cellular wheel in each wheel chamber, which is by means of a in the longitudinal direction of the silo stored and out of the wheel chamber stub shaft can be driven by a cellular wheel drive with adjustable speed.

Die Vorteile der Erfindung liegen insbesondere darin, daß die Schüttgutsäulen auf die in Längsrichtung des Silos ausgerichteten Wellenstümpfe keine unerwünschten Kräfte ausüben. Eine starke Beanspruchung der Achslager der Dosiereinrichtungen wird somit vermieden. Außerdem kann durch die flache Bauhöhe der als Zellenradschleusen ausgebildeten Dosiereinrichtungen das Volumen der Silokammern bei gleichen Gesamtabmessungen entsprechend vergrößert werden. Schließlich besitzt die erfindungsgemäße Vorrichtung je einen unabhängigen Zellenradantrieb und für die Mischvorrichtung einen unabhängigen Mischantrieb, so daß die Mengenabgabe der verschiedenen Schüttgut-Komponenten unabhängig voneinander und unabhängig von der Mischergeschwindigkeit vorgenommen werden kann.The advantages of the invention are, in particular, that the bulk material columns do not exert any undesirable forces on the stub shafts aligned in the longitudinal direction of the silo. A heavy load on the axle bearings of the dosing devices is thus avoided. In addition, the volume of the silo chambers can be increased accordingly with the same overall dimensions due to the flat overall height of the metering devices designed as cellular wheel sluices. Finally, the device according to the invention each has an independent cellular wheel drive and an independent mixing drive for the mixing device, so that the quantity of the various bulk material components can be discharged independently of one another and independently of the mixer speed.

Das aus dem Siloauslauf austretende Schüttgut gelangt in einem fortlaufenden Strom in die Dosiereinrichtungen und wird in dosierter Menge unmittelbar nach dem Austritt aus den Dosiereinrichtungen in die Mischeinrichtung eingegeben. Aus der Mischeinrichtung tritt nach entsprechender Durchmischung und einem Zusatz von Wasser gebrauchsfertiger Mörtel aus, der dann auf der Baustelle zur Weiterverarbeitung bereitsteht. Nach Aufstellen des gefüllten Mehrkammersilos auf der Baustelle und Installation der entsprechen-den Anschlüsse von Strom für die Antriebsmotoren der Dosiereinrichtungen und der Mischeinrichtung sowie der Zuleitung von Wasser zur Mischeinrichtung, ist die Vorrichtung betriebsbereit.The bulk material emerging from the silo outlet flows into the metering devices in a continuous flow and is introduced in metered quantity immediately after leaving the metering devices into the mixing device. After appropriate mixing and the addition of water, ready-to-use mortar emerges from the mixing device, which is then ready for further processing at the construction site. After installing the filled multi-chamber silo on the construction site and installing the appropriate one The device is ready for connections of current for the drive motors of the metering devices and the mixing device and the supply of water to the mixing device.

Durch die kompakte Bauweise können Dosiereinrichtung und Mischeinrichtung mit dem Baustellensilo verbunden bleiben, wenn das Silo, beispielsweise zum Nachfüllen, von einem Lastkraftwagen aufgenommen und abtransportiert wird. Unmittelbar nach erneuter Heranschaffung des wieder gefüllten Baustellensilos kann die Vorrichtung wieder in Betrieb genommen werden, um gebrauchsfertige Mischungen herzustellen.Due to the compact design, the metering device and the mixing device can remain connected to the construction site silo if the silo is picked up and transported away by a truck, for example for refilling. Immediately after the new construction site silo has been refilled, the device can be put back into operation in order to produce ready-to-use mixtures.

Die als Zellenradschleusen ausgebildeten Dosiereinrichtungen können den aus dem Siloauslauf ständig austretenden Strom von Schüttgut in kleinere Teilmengen aufteilen, wobei jede Teilmenge dem Füllvolumen einer Zelle des Zellenrades entspricht. Je nach Drehgeschwindigkeit des Zellenrades wird deshalb in einer bestimmten Zeiteinheit eine bestimmte Menge dem Silo entnommen bzw. der Mischeinrichtung zugeführt. Eine Zellenradschleuse ist konstruktiv einfach und arbeitet verhältnismäßig betriebssicher. Die Dosierung ist relativ genau und kann durch die Abänderung der Drehzahl des Zellenrades auch ohne weiteres geändert werden. Die Zellenradschleuse bildet in vorteilhafter Weise gleichzeitig einen Verschluß des Siloauslaufs, denn ein Austragen des Siloinhaltes erfolgt nur dann, wenn das Zellenrad in der Radkammer umläuft.The metering devices in the form of cellular wheel sluices can divide the flow of bulk material continuously emerging from the silo outlet into smaller partial quantities, each partial quantity corresponding to the filling volume of one cell of the cellular wheel. Depending on the speed of rotation of the cellular wheel, a certain amount is therefore removed from the silo or fed to the mixing device in a certain time unit. A cellular wheel sluice is structurally simple and operates relatively reliably. The dosage is relatively accurate and can be changed by changing the speed of the Cell wheel can also be changed easily. The cellular wheel sluice advantageously forms a closure of the silo outlet at the same time, because the silo contents are only discharged when the cellular wheel rotates in the wheel chamber.

Die Zellenradschleuse kann in baulich sehr einfacher Weise mit einem Siloauslauf verbunden werden. Dazu erhält der Siloauslauf einen Flansch, an den die Radkammer angeflanscht wird. In dem Siloauslauf ist ein die Radkammer bis auf einen Auslaufbereich abdeckendes Abdeckblech eingesetzt. Dieses Abdeckblech kann auch mit der Radkammer verbunden sein, so daß der Silobehälter selbst im wesentlichen unverändert bleibt und lediglich die Zellenradschleuse der Dosiereinrichtung zusammen mit dem Abdeckblech von außen an den Siloauslauf angeflanscht wird.The cellular wheel sluice can be connected to a silo outlet in a structurally very simple manner. For this purpose, the silo outlet has a flange to which the wheel chamber is flanged. A cover plate covering the wheel chamber except for an outlet area is inserted in the silo outlet. This cover plate can also be connected to the wheel chamber, so that the silo container itself remains essentially unchanged and only the cellular wheel sluice of the metering device is flanged together with the cover plate from the outside to the silo outlet.

Jedes Zellenrad besteht aus einer Zentralscheibe und daran sternförmig angeordneten, hochkant stehenden Flachstäben. Zwei zueinander benachbarte Flachstäbe begrenzen jeweils eine Zelle, wobei die Kanten der hochstehenden Flachstäbe bei sich drehendem Zellenrad dicht an den oberen und unteren Wänden der Radkammer vorbeistreichen. Läuft eine Zelle unter dem Einlaufbereich im Abdeckblech durch, tritt aus dem Siloauslauf nachrutschendes Schüttgut in die Zelle ein und wird vom sich drehenden Zellenrad mitgenommen.Each cell wheel consists of a central disc and star-shaped, upright flat bars. Two adjacent flat bars each delimit a cell, the edges of the upstanding flat bars brushing closely against the upper and lower walls of the wheel chamber when the cell wheel rotates. If a cell passes under the inlet area in the cover plate, bulk material that slides out of the silo outlet enters the cell and is carried along by the rotating cell wheel.

Zur Verbesserung der Mitnahmewirkung ist vorgesehen, daß jeder Flachstab im Ansetzbereich an der Zentralscheibe entgegen der Drehrichtung schräg verläuft und einen äußeren in Drehrichtung abgebogenen Abschnitt hat.To improve the entrainment effect, it is provided that each flat bar in the attachment area on the central disk runs obliquely against the direction of rotation and an outer in Section bent in the direction of rotation.

Die vom Zellenrad mitgenommenen Teilmengen des Schüttgutes können aus der Radkammer wieder herausfallen, da eine untere Verschlußplatte der Radkammer einen Auslaß hat, der mit einem Auslaßflansch ausgerüstet ist. Der Auslaßflansch dient der erleichterten Verbindung mit den als Zellenradschleusen ausgebildeten Dosiereinrichtungen nachgeschalteten weiteren Einrichtungen, wie beispielsweise der Mischeinrichtung.The portions of the bulk material carried along by the cellular wheel can fall out of the wheel chamber again, since a lower closure plate of the wheel chamber has an outlet which is equipped with an outlet flange. The outlet flange serves to facilitate connection to the further devices connected downstream, such as the mixing device, which are designed as cellular wheel sluices.

Die in den Kammern des Baustellensilos befindlichen Schüttgüter müssen gleichmäßig aus dem Siloauslauf fallen können, damit eine gleichmäßige Beschickung der als Zellenradschleusen ausgebildeten Dosiereinrichtungen gewährleistet ist. Brückenbildungen im Schüttgut würden den gefordeten gleichmäßigen Nachlauf des Schüttgutes stören. Zur Vermeidung von Brückenbildungen ist bevorzugt an der Zentralscheibe jedes Zellenrades wenigstens ein in den Silobehälter vorstehender Rührfinger angeordnet. Während des Betriebs der Dosiereinrichtungen drehen sich die Rührfinger mit dem Zellenrad, so daß in dem Bereich des Siloauslaufs nachrutschendes Schüttgut ständig aufgelockert wird und im gleichmäßigen Strom in die Zellenradschleuse eintreten kann.The bulk goods located in the chambers of the construction site silo must be able to fall evenly out of the silo outlet so that a uniform loading of the metering devices designed as cellular wheel locks is guaranteed. Forming bridges in the bulk material would interfere with the required smooth wake of the bulk material. To avoid the formation of bridges, at least one stirring finger protruding into the silo container is preferably arranged on the central disk of each cell wheel. During the operation of the metering devices, the agitator fingers rotate with the cell wheel, so that bulk material that slides in the area of the silo outlet is loosened continuously and can enter the cell wheel sluice in a steady flow.

Die den Dosiereinrichtungen nachgeschaltete Mischeinrichtung weist Einläufe auf, die mittels entsprechender Flansche mit den Auslaufflanschen der Dosiereinrichtung verbindbar sind. Die Verbindung mit Flanschen ist ausreichend fest, so daß auf besondere Halterungen zum Anbringen der Mischeinrichtung an dem Silo verzichtet werden kann.The mixing device downstream of the metering devices has inlets which can be connected to the outlet flanges of the metering device by means of corresponding flanges. The connection with flanges is sufficiently firm, so that on special brackets for attaching the mixing device on the silo can be omitted.

Vorzugsweise weist die Mischeinrichtung ein etwa waagerecht unter den Auslaufflanschen hängendes Rohrgehäuse auf, in dem eine von dem Mischerantrieb angetriebene Welle verläuft, wobei die Welle in den mit den Einläufen der Mischeinrichtung korrespondierenden Abschnitten mit Schneckenflügeln besetzt ist und im sich daran anschließenden Abschnitt etwa radial abstehende Mischflügel hat.The mixing device preferably has a tube housing hanging approximately horizontally below the outlet flanges, in which a shaft driven by the mixer drive runs, the shaft being equipped with screw vanes in the sections corresponding to the inlets of the mixing device and in the adjoining section approximately radially projecting mixing vanes Has.

Die Mischeinrichtung ist dadurch baulich sehr einfach und betriebssicher. Die Schneckenflügel befördern die aus den Ausläufen der Dosiereinrichtungen austretenden Schüttgutmengen in den Durchmischungsbereich. Die Mischflügel bewirken eine intensive Durchmischung. Dabei kann z.B. dann, wenn Mörtelmischungen hergestellt werden sollen, auch noch das benötigte Wasser zugesetzt werden.This makes the mixing device structurally very simple and reliable. The screw vanes convey the bulk material quantities emerging from the outlets of the metering devices into the mixing area. The mixing blades cause intensive mixing. Here, e.g. then, if mortar mixtures are to be produced, the required water is also added.

Die fertige Mischung kann aus der Mischeinrichtung austreten, da das Rohrgehäuse an dem stirnseitigen Ende, welches dem Abschnitt der Welle mit den Mischflügeln entspricht, einen Endauslauf hat.The finished mixture can emerge from the mixing device, since the tube housing has an end outlet at the front end, which corresponds to the section of the shaft with the mixing blades.

Mit besonderem Vorteil ist vorgesehen, daß jeder Mischflügel aus paarweise nebeneinander von der Welle radial abstehenden Laschen besteht, die jeweils an den freien Enden durch eine Brückenlasche miteinander verbunden sind. Jede Lasche ist mit einem Anstellwinkel schräg auf die Welle gesetzt, wodurch bei den Umdrehungen der Welle auch eine Beförderung der herzustellenden Mischung in Längsrichtung des Rohrgehäuses der Mischeinrichtung erfolgt. Außerdem ist jede Brückenlasche mit einem Neigungswinkel zwischen die Laschen gesetzt, wodurch die Durchmischung der Mischungsbestandteile intensiver wird.It is particularly advantageously provided that each mixing blade consists of pairs of tabs projecting radially from the shaft side by side, which are each connected to one another at the free ends by a bridge tab. Each tab is set obliquely on the shaft with an angle of attack, so that during the revolutions of the shaft, the mixture to be produced is also conveyed in the longitudinal direction of the tube housing Mixing device takes place. In addition, each bridge plate is placed between the plates with an angle of inclination, which makes the mixing of the mixture components more intensive.

Die Mischflügel sind in Längsrichtung der Welle versetzt angeordnet, was ebenfalls zur verbesserten Durchmischung beiträgt.The mixing blades are offset in the longitudinal direction of the shaft, which also contributes to improved mixing.

An ihrem dem Endauslaß des Rohrgehäuses abgekehrten Ende weist die Mischeinrichtung den Mischer-Antriebsmotor mit zugeordnetem Getriebe für die Welle auf. Antriebsmotor und Getriebe bilden bevorzugt eine bauliche Einheit, die mit besonderem Vorteil an einem Stirnende des Rohrgehäuses abklappbar angelenkt ist. Dadurch wird die Reinigung der Mischeinrichtung erleichtert. Nach Abklappen der aus Antriebsmotor und Getriebe gebildeten Einheit kann die Mischeinrichtung, insbesondere das Rohrgehäuse, mit Wasser ausgespritzt und dadurch einfach gereinigt werden.At its end facing away from the end outlet of the tubular housing, the mixing device has the mixer drive motor with an associated gear for the shaft. The drive motor and transmission preferably form a structural unit which is particularly advantageously hinged to a front end of the tubular housing. This makes cleaning the mixing device easier. After the unit formed from the drive motor and the gear unit has been folded down, the mixing device, in particular the tubular housing, can be sprayed out with water and thereby easily cleaned.

Die Welle mit den Schneckenflügeln und den Mischflügeln ist in das Rohrgehäuse einsteckbar und ist bei an das Rohrgehäuse angeklapptem Antriebsmotor mit dem Getriebe kraftschlüssig verbunden, da das Getriebe abtriebsseitig eine mit dem antriebsseitigen Ende der Welle in Wirkverbindung bringbare Steckkupplung aufweist. Am dem Antrieb gegenüberliegenden Ende weist das Rohrgehäuse mit besonderem Vorteil ein abnehmbares Lagerschild auf, in welchem das zugeordnete Ende der Welle gelagert ist. Nach Abnehmen des Lagerschildes kann die Welle aus dem Rohrgehäuse gezogen werden, wodurch die Reinigung und das Spülen von Rohrgehäuse und Welle erleichtert ist.The shaft with the screw vanes and the mixing vanes can be inserted into the tubular housing and is non-positively connected to the gear unit when the drive motor is folded onto the tubular housing, since the gear unit has a plug-in coupling that can be operatively connected to the drive-side end of the shaft. At the end opposite the drive, the tubular housing has, with particular advantage, a removable end plate in which the associated end of the shaft is mounted. After removing the end shield, the shaft can be pulled out of the tube housing, which makes cleaning and flushing the tube housing and shaft easier.

Um während des Mischbetriebes eine Abdichtung zwischen der abklappbaren Antriebseinheit und dem Rohrgehäuse zu erreichen, weist das Getriebe abtriebsseitig einen Dichtflansch auf und hat das Rohrgehäuse am den Dichtflansch zugekehrten Ende ein elastisches Dichtelement. Die Antriebseinheit kann nach ihrem Anklappen an das Rohrgehäuse durch entsprechende Spannelemente, Verschlüsse oder dergleichen, verriegelt werden, so daß sich der Dichtflansch an das elastische Dichtelement des Rohrgehäuses anpreßt.In order to achieve a seal between the foldable drive unit and the tubular housing during mixed operation, the transmission has a sealing flange on the output side and the tubular housing has an elastic sealing element at the end facing the sealing flange. The drive unit can be locked by means of appropriate tensioning elements, closures or the like after it has been folded onto the tube housing, so that the sealing flange presses against the elastic sealing element of the tube housing.

Ein Ausführungsbeispiel der Erfindung, aus dem sich weitere erfinderische Merkmale ergeben, ist in der Zeichnung dargestellt. Es zeigen:

Fig. 1
eine schematische Seitenansicht eines aufgestellten Silos mit Dosiereinrichtungen und Mischeinrichtung,
Fig. 2
Siloausläufe des Silos gemäß Fig. 1 im Schnitt mit angesetzten Dosiereinrichtungen und der Mischeinrichtung,
Fig. 3
eine schematische Draufsicht auf eine Radkammer einer Dosiereinrichtung.
An embodiment of the invention, from which further inventive features result, is shown in the drawing. Show it:
Fig. 1
1 shows a schematic side view of a silo with metering devices and mixing device,
Fig. 2
1 in section with attached metering devices and the mixing device,
Fig. 3
is a schematic plan view of a wheel chamber of a metering device.

In Fig. 1 ist ein Baustellensilo 1 in schematischer Seitenansicht dargestellt. Es besteht aus einer Außenkammer 2 und darin eingesetzter Innenkammer 3. An der Unterseite weisen die Kammern 2,3 Ausläufe 4,5 auf, aus denen das in den Kammern 2,3 gespeicherte Schüttgut auslaufen kann. An die freien Enden der Ausläufe 4,5 ist je eine Dosiereinrichtung 6,7 angeschlossen. Jede Dosiereinrichtung weist einen Auslaß 8,9 auf. An die Auslässe 8,9 sind Einläufe 10,11 einer Mischeinrichtung angeschlossen, die ein Rohrgehäuse 13 hat, in welchem die aus dem Silo dosiert entnommenen Schüttgutbestandteile gemischt werden, wenn im Rohrgehäuse 13 befindliche mechanisch bewegbare Mischerelemente mittels eine aus Getriebe 37 und Motor 36 bestehenden Mischerantriebs bewegt werden.1 shows a construction site silo 1 in a schematic side view. It consists of an outer chamber 2 and an inner chamber 3 inserted therein. On the underside, the chambers 2, 3 have outlets 4, 5, from which the in the Chambers 2,3 stored bulk goods can leak. A metering device 6,7 is connected to the free ends of the outlets 4, 5. Each metering device has an outlet 8.9. Inlets 8, 11 of a mixing device are connected to the outlets 8, 9 and have a tubular housing 13 in which the bulk material components removed from the silo are mixed when mechanically movable mixer elements located in the tubular housing 13 by means of a transmission 37 and motor 36 Mixer drive are moved.

Die Dosiereinrichtungen und die Mischeinrichtung werden nachfolgend unter Bezugnahme auf Fig. 2 näher erläutert. Fig. 2 zeigt eine schematische Schnittansicht der Siloausläufe 4,5. Jeder Siloauslauf ist am freien Ende mit einem Auslaufflansch 16,17 ausgerüstet. Jeder Auslaufflansch dient zum Anflanschen einer Dosiereinrichtung 6,7 (Fig. 1) an den jeweiligen Siloauslauf. Da die Dosiereinrichtungen 6,7 identisch ausgebildet sind, wird der Aufbau und die Funktionsweise der Dosiereinrichtungen nachstehend am Ausführungsbeispiel der dem Siloauslauf 4 zugeordneten Dosiereinrichtung 7, die hier auf der rechten Seite der Zeichnung sichtbar ist, beschrieben.The metering devices and the mixing device are explained in more detail below with reference to FIG. 2. 2 shows a schematic sectional view of the silo outlets 4, 5. Each silo outlet is equipped with an outlet flange 16, 17 at the free end. Each outlet flange serves to flange a metering device 6, 7 (FIG. 1) onto the respective silo outlet. Since the metering devices 6, 7 are of identical design, the structure and the mode of operation of the metering devices are described below using the exemplary embodiment of the metering device 7 assigned to the silo outlet 4, which is visible here on the right-hand side of the drawing.

Die Dosiereinrichtung 7 des Siloauslaufs 4 besteht aus einer Zellenradschleuse, die eine vor den Auslaufflansch 17 des Siloauslaufes 4 flanschbare Radkammer 18 umfaßt, in der ein Zellenrad 19 drehbar angeordnet ist. In dem Siloauslauf 4 ist ein die Radkammer 18 bis auf einen Einlaufbereich 20 abdeckendes Abdeckblech 21 angeordnet. Jedes Zellenrad 19 besteht aus einer Zentalscheibe 22 und daran sternförmig angeordneten, hochkant stehenden Flachstäben 23. Im Bereich über der Zentralscheibe weist das Abdeckblech 21 die Form eines in den Siloauslauf hineinstehenden Kegels auf. Eine untere Verschlußplatte 25 der Radkammer 18 ist mit einem Lager 24 für die Zentralscheibe 22 ausgerüstet, so daß ein an der Abtriebsseite eines unter die Verschlußplatte 25 flanschbaren Getriebes 26 befindlicher Wellenstumpf 27 die Zentralscheibe und damit das Zellenrad 19 drehen kann. Mit 28 ist ein für den Antrieb des Zellenrades vorgesehener Elektromotor bezeichnet.The metering device 7 of the silo outlet 4 consists of a cellular wheel sluice which comprises a wheel chamber 18 which can be flanged in front of the outlet flange 17 of the silo outlet 4 and in which a cellular wheel 19 is rotatably arranged. In the silo outlet 4 there is a cover plate 21 which covers the wheel chamber 18 except for an inlet region 20. Each cellular wheel 19 consists of a central disc 22 and star-shaped, upright flat bars 23. In the area above the central disc, the cover plate 21 has the shape of a cone protruding into the silo outlet. A lower closure plate 25 of the wheel chamber 18 is equipped with a bearing 24 for the central disk 22, so that a shaft end 27 located on the driven side of a gear 26 which can be flanged under the closure plate 25 can rotate the central disk and thus the cellular wheel 19. With 28 an electric motor provided for driving the cellular wheel is designated.

Die Verschlußplatte 25 der Radkammer 18 weist den Auslaß 9 auf, der am freien Ende mit einem Auslaßflansch ausgerüstet ist.The closure plate 25 of the wheel chamber 18 has the outlet 9, which is equipped at the free end with an outlet flange.

Der Einlauf 11 der Mischeinrichtung 12 (Fig. 1) ist mit einem entsprechenden Flansch an den Auslaßflansch 29 des Auslasses 9 der Dosiereinrichtung 7 gesetzt.The inlet 11 of the mixing device 12 (FIG. 1) is placed with a corresponding flange on the outlet flange 29 of the outlet 9 of the metering device 7.

Der zweite Auslauf 5 des Silos ist mit einer baugleichen Dosiereinrichtung ausgerüstet und wird hier nicht näher beschrieben. Der Auslaß 8 dieser Dosiereinrichtung des Auslaufes 5 ist ebenfalls mit einem Einlauf 10 der Mischeinrichtung 12 verbunden.The second outlet 5 of the silo is equipped with an identical metering device and is not described here in detail. The outlet 8 of this metering device of the outlet 5 is also connected to an inlet 10 of the mixing device 12.

Das Rohrgehäuse der Mischeinrichtung ist mit 13 bezeichnet. In dem Rohrgehäuse 13 verläuft eine drehgetriebene Welle, die in dem mit den Einläufen 10,11 korrespondierenden Abschnitt mit Schneckenflügeln besetzt ist und in einem sich daran anschließenden Abschnitt etwa radial abstehende Mischflügel 32 hat. Am Stirnende, das dem freien Ende des Abschnittes mit den Mischflügeln 32 entspricht, hat das Rohrgehäuse einen Endauslaß 33.The tube housing of the mixing device is designated 13. A rotatably driven shaft runs in the tubular housing 13 and is equipped with screw blades in the section corresponding to the inlets 10, 11 and mixing blades which project approximately radially in a subsequent section 32 has. At the front end, which corresponds to the free end of the section with the mixing blades 32, the tubular housing has an end outlet 33.

Jeder Mischflügel besteht aus paarweise nebeneinander von der Welle radial abstehenden Laschen 34, die jeweils an den freien Enden durch eine parallel zur Längsachse der Welle ausgerichtete Brückenlasche 35 miteinander verbunden sind. Wie Fig. 2 zeigt, ist jede Lasche 34 mit einem Anstellwinkel schräg auf die Welle 30 gesetzt. Jede Brückenlasche 35 ist mit einem bestimmten Neigungswinkel zwischen die Laschen 34 gesetzt. Außerdem sind die Mischflügel in Längsrichtung der Welle versetzt angeordnet.Each mixing blade consists of pairs of tabs 34 which project radially from the shaft and which are connected to each other at the free ends by a bridge tab 35 aligned parallel to the longitudinal axis of the shaft. As shown in FIG. 2, each tab 34 is set at an angle on the shaft 30. Each bridge plate 35 is placed between the plates 34 at a certain angle of inclination. In addition, the mixing blades are offset in the longitudinal direction of the shaft.

Ein Antriebsmotor 36 bildet mit seinem Getriebe 37 für die Welle einen an einem Stirnende des Rohrgehäuses 13 abklappbar angelenkten Mischerantrieb. Der Klappmechanismus ist hier nicht weiter dargestellt, kann jedoch als einfaches Scharnier ausgebildet sein. Das Getriebe 37 weist abtriebsseitig eine mit dem antriebsseitigen Ende der Welle 30 in Wirkverbindung bringbare Steckkupplung auf. Weiterhin hat das Getriebe 37 abtriebsseitig einen Dichtflansch 39. Das Rohrgehäuse 13 weist an seinem dem Dichtflansch 39 zugekehrten Ende ein elastisches Dichtelement 40 auf, mit dem der Dichtflansch 39 des Getriebes zur Anlage kommt.A drive motor 36 forms with its gear 37 for the shaft a mixer drive hinged to one end of the tubular housing 13. The folding mechanism is not shown here, but can be designed as a simple hinge. The transmission 37 has on the output side a plug-in coupling which can be brought into operative connection with the drive-side end of the shaft 30. Furthermore, the gear 37 has a sealing flange 39 on the output side. The tubular housing 13 has at its end facing the sealing flange 39 an elastic sealing element 40 with which the sealing flange 39 of the gear comes into contact.

In Fig. 3 ist zur Verdeutlichung der Ausbildung der Dosiereinrichtung 7 eine Draufsicht auf eine oben offene Radkammer 18 der Dosiereinrichtung 7 dargestellt. Durch die auf der rechten Seite bogenförmig gewölbte gestrichelte Doppellinie wird der Rand 41 eines zusätzlichen Abdeckbleches angedeutet, der den Einlaufbereich in die Dosiereinrichtung 7 begrenzt. Die Zentralscheibe 22, die auf dem Wellenstumpf 27 sitzt, trägt die sternförmig angeordneten hoch kantstehenden Flachstäbe 23. Jeder Flachstab ist im Ansetzbereich an der Zentralscheibe entgegen der Drehrichtung schräg ausgerichtet und hat einen äußeren, in Drehrichtung abgebogenen Abschnitt. Diese unter der Zentralscheibe 22 vorstehenden Abschnitte der Flachstäbe begrenzen eine Zelle mit konstantem Volumen. Jede Zelle zwischen zwei den Einlaufbereich passierenden Flachstäben 23 wird mit aus dem Silo nachlaufendem Schüttgut gefüllt. Der Schüttgutstrom aus dem Silo wird dadurch fortlaufend in gleiche Teilmengen zerlegt. Die Teilmengen fallen nacheinander in den Auslaß 9 und gelangen, wie vorbeschreiben, zur weiteren Verarbeitung in die Mischeinrichtung3 shows a plan view of a wheel chamber 18 of the metering device 7, which is open at the top, in order to clarify the design of the metering device 7. Through the one on the right The edge 41 of an additional cover plate, which delimits the inlet area into the metering device 7, is indicated on the side of the curved double dashed line. The central disk 22, which is seated on the shaft end 27, carries the star-shaped, upright, flat bars 23. Each flat bar is oriented obliquely in the attachment area on the central disk against the direction of rotation and has an outer section bent in the direction of rotation. These sections of the flat bars protruding under the central disk 22 delimit a cell with a constant volume. Each cell between two flat bars 23 passing the inlet area is filled with bulk material trailing out of the silo. The bulk material flow from the silo is continuously broken down into equal parts. The partial quantities successively fall into the outlet 9 and, as described above, reach the mixing device for further processing

Claims (13)

  1. A device for the manufacture of ready-to-use mixtures of loose material, such as cement and sand, for example, having
    a) a silo (1) for mobile use with several chambers (2, 3) for separately containing the various loose materials,
    b) one silo outlet (4, 5) for each chamber (2, 3),
    c) one metering appliance (6, 7) at each silo outlet for the metered discharge of the loose material,
    d) with it being possible to connect one discharge opening (8, 9) of each metering appliance to the associated inlet opening (10, 11) of a mixing appliance (12) provided with a mixing drive (36, 37),
    characterised in that
    e) the metering appliances (6, 7) are constructed as vane wheel sluices, which
    f) under the silo outlets (4, 5) each comprises a wheel chamber (18) at right angles to the longitudinal direction of the silo and
    g) in each wheel chamber (18) comprise a vane wheel (19), which can be driven at variable rotational speed by means of a shaft butt (27) of a respective vane wheel drive (26, 28) which is supported in the longitudinal direction of the silo (1) and guided out of the wheel chamber (18).
  2. A device according to Claim 1,
    characterised in that a cover plate (21) covering the wheel chamber (18) right up to an inlet region (20) is inserted in the silo outlet (4, 5).
  3. A device according to one of Claims 1 or 2,
    characterised in that each vane wheel (19) consists of a central disk (22) and flat bars (23) which are on edge and are disposed in a star shape around said disk.
  4. A device according to Claim 3,
    characterised in that in the region where it is attached to the central disk (22), each flat bar (23) extends diagonally contrary to the direction of rotation and has an outer section which is bent in the direction of rotation.
  5. A device according to one of the preceding Claims, especially Claim 3,
    characterised in that a lower locking plate (25) of the wheel chamber (18) has an outlet (9), which is fitted with an outlet flange (29).
  6. A device according to one of the preceding Claims,
    characterised in that on the central disk (22) there is disposed at least one agitator finger projecting into the silo outlet (4, 5).
  7. A device according to one of the preceding Claims,
    characterised in that the mixing appliance (12) comprises a tubular housing (13) which is suspended approximately horizontally beneath the outlet flanges (29),
    in that in the tubular housing (13) there extends a shaft (30) which is driven by the mixer drive (36, 37),
    and in that the shaft (30) is covered with worm blades (31) in the section corresponding with the inlets (10, 11) of the mixing appliance (12) and has stirring paddles (32) which project roughly radially in the section connected thereto.
  8. A device according to Claim 7,
    characterised in that the tubular housing (13) has a delivery end (33) at the end of the section having stirring paddles (32).
  9. A device according to Claim 7 and 8,
    characterised in that each stirring paddle (32) consists of side plates (34) which project radially from the shaft (30) next to one another in pairs and are respectively connected to one another at the free ends by a bridge plate (35).
  10. A device according to one of Claims 7 to 9,
    characterised in that the stirring paddles (32) are staggered in the longitudinal direction of the shaft (30).
  11. A device according to one of Claims 6 to 10,
    characterised in that the drive motor (36) with its gear unit (37) for the shaft (30) forms a unit which is tiltably hinged to a front end of the tubular housing (13).
  12. A device according to Claim 11,
    characterised in that on the driven side the gear unit (37) comprises a plug connection (38) which can be brought into operative connection with the drive end of the shaft (30).
  13. A device according to one of Claims 11 and 12,
    characterised in that the gear unit (37) comprises a sealing flange (39) on the driven side and
    in that the tubular housing (13) has an elastic sealing member (40) on the end nearer to the gasket (39).
EP87117023A 1986-11-28 1987-11-19 Device for making mixtures ready to be used from bulk goods kept ready in a silo Revoked EP0268991B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117023T ATE61966T1 (en) 1986-11-28 1987-11-19 DEVICE FOR PRODUCTION OF READY-TO-USE MIXTURES FROM BULK MATERIAL STORED IN A SILO.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863640766 DE3640766A1 (en) 1986-11-28 1986-11-28 DEVICE FOR PRODUCING READY-TO-USE MIXTURES FROM SHEET MATERIALS AVAILABLE IN A SILO
DE3640766 1986-11-28

Publications (3)

Publication Number Publication Date
EP0268991A2 EP0268991A2 (en) 1988-06-01
EP0268991A3 EP0268991A3 (en) 1989-04-05
EP0268991B1 true EP0268991B1 (en) 1991-03-27

Family

ID=6315049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117023A Revoked EP0268991B1 (en) 1986-11-28 1987-11-19 Device for making mixtures ready to be used from bulk goods kept ready in a silo

Country Status (3)

Country Link
EP (1) EP0268991B1 (en)
AT (1) ATE61966T1 (en)
DE (2) DE3640766A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741052A1 (en) * 1987-12-04 1989-06-15 Silo Estrich Gmbh & Co Vertrie DEVICE FOR PRODUCING READY-TO-USE MORTAR, SCREED OR THE LIKE
DE3841146C1 (en) * 1988-12-07 1990-02-08 Maschinen- Und Apparatebau August Tepe Gmbh, 2848 Vechta, De
ES2020794A6 (en) * 1990-10-04 1991-09-16 Madera Iglesias Jose Ramon Portable plant for proportioning and tempering dry concrete in bulk or other granular products.
DE4141068C2 (en) * 1991-12-13 1996-02-01 Masch Und Apparatebau A Tepe Mobile concrete mixing plant
US5624183A (en) * 1993-03-29 1997-04-29 Schuff; David A. Apparatus for metering and mixing aggregate and cement
US5785420A (en) * 1993-03-29 1998-07-28 Schuff; David A. Apparatus for metering and mixing aggregate and cement
IT202100010937A1 (en) * 2021-04-29 2022-10-29 Ziche Investimenti S R L IMPROVED SYSTEM FOR THE PRODUCTION OF BUILDING MATERIALS

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR955060A (en) * 1950-01-07
DE660006C (en) * 1936-05-06 1938-05-14 Anton Seelmann U Soehne G Adjustable metering device for cement or the like.
BE495828A (en) * 1950-03-31
CH339550A (en) * 1956-03-19 1959-06-30 Egli & Erbes Concrete preparation plant
US3967815A (en) * 1974-08-27 1976-07-06 Backus James H Dustless mixing apparatus and method for combining materials
DE3013280C2 (en) * 1980-04-05 1983-11-17 Mathis System-Technik Gmbh, 7801 Merdingen Device for particularly continuous production of prepared mortar or the like.
DE3031219C2 (en) * 1980-05-27 1983-10-06 Aliva AG, 8967 Widen, Mutschellen Material feeder for systems for the pneumatic conveying of bulk materials
US4427297A (en) * 1982-04-16 1984-01-24 Cemen-Tech, Inc. Concrete ingredient metering device
FI75518C (en) * 1982-04-30 1988-07-11 Janssen Wilhelmus Gerardus E ANORDINATION OF FRAMSTAELLNING AV MURBRUK.
LU85282A1 (en) * 1984-04-02 1985-11-27 Jacques Gilson MIXING AND DOSING DEVICE

Also Published As

Publication number Publication date
EP0268991A2 (en) 1988-06-01
EP0268991A3 (en) 1989-04-05
DE3768916D1 (en) 1991-05-02
DE3640766C2 (en) 1989-10-12
DE3640766A1 (en) 1988-06-01
ATE61966T1 (en) 1991-04-15

Similar Documents

Publication Publication Date Title
DE69814786T2 (en) mixer
EP0212256B1 (en) Device for dispensing metered quantities of bulk material
DE19501179A1 (en) Device for dosing bulk goods
DE3110437A1 (en) &#34;MIXER&#34;
DE4318177C2 (en) Device for the on-site production of pumpable mortar compounds
DE1244723B (en) Device for the continuous mixing of dry material with a liquid
DE2358051B2 (en) Method and device for the continuous mixing of molding materials for casting purposes
EP0268991B1 (en) Device for making mixtures ready to be used from bulk goods kept ready in a silo
DE2830491C2 (en)
LU88119A1 (en) DEVICE FOR THE MANUFACTURING OF PUMPABLE MORTAR DIMENSIONS ON THE SITE
DE2949026A1 (en) Ready-mixed concrete lorry drum - has coaxial internal tube with spiral of opposite pitch to mixing spiral
EP1362224B1 (en) Dosing device
DE1459258A1 (en) Device for mixing building materials
EP0168414B1 (en) Dispensing device for bulk material container
DE2360644B2 (en) DEVICE FOR MIXING METERED QUANTITIES OF A PLASTIC AND AT LEAST ONE ADDITIVE
DE4235528A1 (en) Dispensing and mixing unit for two component mixts. - where dispensing and during devices consist of rotary lobe pumps, for use in dental work
DE2219352A1 (en) Continuous horizontal fixed drum mixer - for chips, fibres or powder, with liq
DE3929729C2 (en) Device for pasting a dry mortar
CH507138A (en) Device for conveying and dosing pasty, sticky and free-flowing materials
CH659052A5 (en) Device for the portioned and metered dispensing of bulk materials from a storage container
DE1782327B2 (en) Batch mixer
EP1000718A2 (en) Mixer for making a pumpable mortar
CH432360A (en) Machine for the pneumatic conveying of bulk materials, especially mortar or concrete
DE3307117A1 (en) Device for the production of feed concentrate
DE3342465C2 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19890511

17Q First examination report despatched

Effective date: 19890823

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910327

REF Corresponds to:

Ref document number: 61966

Country of ref document: AT

Date of ref document: 19910415

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3768916

Country of ref document: DE

Date of ref document: 19910502

K2C3 Correction of patent specification (complete document) published

Effective date: 19910327

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SILO ESTRICH GMBH & CO VERTRIEBS KG,

Effective date: 19911220

26 Opposition filed

Opponent name: BRINKMANN MASCHINENFABRIK GMBH

Effective date: 19911224

Opponent name: SILO ESTRICH GMBH & CO VERTRIEBS KG,

Effective date: 19911220

NLR1 Nl: opposition has been filed with the epo

Opponent name: BRINKMANN MASCHINEFABRIK GMBH

Opponent name: SILO ESTRICH GMBH & CO VERTRIEBS KG

EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19951123

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19951202

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19951214

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19951219

Year of fee payment: 9

Ref country code: AT

Payment date: 19951219

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19951220

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19951221

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19960101

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19961119

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 970224

27W Patent revoked

Effective date: 19970224

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970601

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO