EP0240594A1 - Device for putting concrete charges in readiness in underground workings - Google Patents

Device for putting concrete charges in readiness in underground workings Download PDF

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Publication number
EP0240594A1
EP0240594A1 EP86111687A EP86111687A EP0240594A1 EP 0240594 A1 EP0240594 A1 EP 0240594A1 EP 86111687 A EP86111687 A EP 86111687A EP 86111687 A EP86111687 A EP 86111687A EP 0240594 A1 EP0240594 A1 EP 0240594A1
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EP
European Patent Office
Prior art keywords
tubular drum
mixing
drum
concrete
dry
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
EP86111687A
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German (de)
French (fr)
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EP0240594B1 (en
Inventor
Gerhard Dipl.-Kfm. Schwing
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Friedrich Wilhelm Schwing GmbH
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Friedrich Wilhelm Schwing GmbH
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Priority to AT86111687T priority Critical patent/ATE55720T1/en
Publication of EP0240594A1 publication Critical patent/EP0240594A1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4272—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with rotating drum rotating about a horizontal or inclined axis, e.g. comprising tilting or raising means for the drum
    • B28C5/4275—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with rotating drum rotating about a horizontal or inclined axis, e.g. comprising tilting or raising means for the drum with a drum rotating about a horizontal axis, e.g. perpendicular to the longitudinal axis of the vehicle

Definitions

  • the invention relates to a method for providing batches of concrete in underground operation according to the preamble of claim 1. Furthermore, the invention relates to a device for performing this method.
  • the invention enables the provision of batches of concrete mainly in tunnel construction, but possibly also when expanding lines in mining. It relates to processes according to which batches of concrete are only produced on site and not above ground, and therefore cement on the one hand and dry or self-moist aggregates, if necessary with appropriate concrete additives, are transported separately on site, however. This means that there is no need to transport wet or earth-moist ready-mixed concrete that has been manufactured for days and the associated subsequent mixing of the delivered concrete on site.
  • the method according to the invention makes it possible in particular to prepare the concrete only when it is removed on site from the finishing work to be carried out there.
  • the invention is based on one of these previously known methods, which is carried out with a track-bound vehicle with a special structure.
  • the construction of this vehicle has several containers in which cement and aggregates are separated, if necessary with additives, but are transported together. Two containers arranged next to each other are provided for the cement in each batch of concrete; two additional containers contain the surcharges for each of these batches of concrete.
  • the vehicle has an automatic clutch and a discharge conveyor. With the coupling, it can be connected to an on-site feed conveyor belt of a mobile mixer with a concrete pump arranged at the bottom, which takes over a batch of concrete from two containers and feeds the batch of concrete to the concrete pump. With the vehicle's discharge conveyor, the loads belonging to a concrete batch are continuously removed.
  • the container arrangement ensures that the cement is applied in a layer arranged on top of the aggregate lying on the bottom of the concrete conveyor belt.
  • the mixing takes place to a significant extent only in the mixer downstream of the feed belt. Water must be added to avoid dust formation. For this reason, the dry constituents of the concrete are initially kept separate from each other and practically only mixed in with the addition of water in the mixer, i.e. mixed.
  • the disadvantage here is the comparatively poor quality of the concrete.
  • this is a consequence of irregularities in the bringing together of cement, aggregates and water due to the described processes, which are primarily due to the uncontrollable run-out processes on the containers above the discharge belt, but also when adding water and cannot be completely eliminated in front of the concrete pump.
  • Organizationally it is also difficult to completely remove the batch of concrete produced, ie to match the concreting and the production of the concrete to one another with the required accuracy. As a result, fresh quality concrete is therefore not available on site in the previously known method.
  • a further disadvantage is the contamination by wet and hardened concrete components of the conveyor belts and machines connected upstream of the concrete pump, which has to be accepted as a result of the necessary addition of water on the transport route.
  • the invention has for its object to perform the known as a method so that fresh quality concrete can be made available on site and a significant risk of contamination no longer has to be accepted.
  • the cement load on the aggregate load on site after the transport, that is to say the filling of the cement load on the aggregate load on site, all irregularities in bringing together the batches belonging to a concrete batch are dry components eliminated.
  • the total amount is homogenized due to its thorough mixing, then transported and mixed with the mixing water.
  • This dry mixing of the components not only leads to a completely uniform mixing and thus to a quality concrete.
  • the method according to the invention is preferably carried out with the features of patent claim 3.
  • This makes it possible to take advantage of the mechanical stresses on the dry concrete components, which are unavoidable during transport, for further mixing, which has the advantage of shortening the dry mixing system.
  • several dry mixing processes can be connected to one another in correspondingly connected dry mixers, which leads to a compact design of the device according to the invention suitable for carrying out the method. This is desirable because of the limited space in underground operations, which force an elongated construction.
  • the transport route is shortened to a mixing section, which can be divided into several dry mixers connected in series, preferably truck mixers, when implementing the method according to the invention. Conveyor belts and similar intermediate funding can then be dispensed with entirely.
  • the device shown in Fig. 1 consists of several, coupled together Rail vehicles 1 to 5.
  • the rail vehicles 1 and 2 are identical. The number of these identical vehicles can be increased beyond the number shown.
  • the rail vehicles 3 and 4 have a modified structure compared to the rail vehicles 1 and 2. Their number can also be increased. However, it is sufficient if one of these vehicles is provided.
  • the rail vehicle 5 has a special construction. As a rule, only one of these vehicles is required in the train. It should also be noted that the rail vehicles have automatic clutches.
  • type 3 or 4 and 5 rail vehicles are installed stationary for several work processes on site. Type 1 and 2 rail vehicles are coupled and uncoupled as required. These vehicles operate between above ground and underground. This mode of operation is intended for tunnel construction. If it is used in mining, the rail vehicles of type 1, 2 can also remain underground, provided that a corresponding filling device is available underground.
  • the rail vehicles of type 1, 2 are a four-axle base frame 6 with a vehicle body 7 with a lying tubular drum 8 (FIG. 4).
  • This contains in its interior a mixing and transport spiral 10 fastened to the inner wall 9 (FIG. 3).
  • a further transport spiral 12 made of sheet metal is arranged concentrically with the spiral 10 located on the outside via spacers 11.
  • the gradients of the spirals are in opposite directions; if the pipe drum 8 is closed at the front and rear, the screws transport the mix back and forth.
  • the one provided between the two spirals 10, 12 Gap 13 enables free fall mixing. If the drum is open in the conveying direction of the outer spiral 10, the mix is discharged from this opening. If this opening is closed, but the drum is open at the other end, it can be filled through this opening. If both openings are open, the outer spiral 10 acts as a funding.
  • a cement silo 14 is left out of the interior of the tubular drum 8.
  • This cement silo has the shape of a cylinder jacket segment. Accordingly, it is delimited on the outside by the sheet metal skin 17 of the tubular drum 8 provided with manholes 15, 16. Inside, a parallel curved bottom 18 serves as an inner closure. Flat side walls 19, 20 complete the wall of the cement silo 14.
  • the silo 14 has a floor drain, which is generally designated 21 in FIG. 2.
  • the floor emptying leads from the room of the cement silo 14 into the mixing room 22, which at the same time serves as a container for receiving the dry aggregates or aggregates 23 of a batch of concrete.
  • the bottom is emptied by two swivel flaps, which are shown in dash-dotted lines in the open state at 24 and 25 in FIG. 2.
  • the flaps are adjusted using a handlebar linkage.
  • a two-armed swing arm 26 is used for this purpose, which is connected at one end to a hydraulic working cylinder 27a and pivots about a fixed axis 26a.
  • Handlebars 27, 28 connect the rocker 26 to rockers 29 and 30, which pivot about fixed axes 31, 32 and thereby move and hold the flaps in the closed or in the open position via brackets on the outer skin of the swivel flaps 24, 25.
  • the drive described is attached in the front part, ie on the discharge opening 33 of the tubular drum 8.
  • the tubular drum 8 has a cylindrical section 34 and a cone 35 or 36 at each end.
  • the tubular drum can be rotated about its central axis 39a via a drive 37 with a toothed ring 38 arranged on the cylindrical section 34.
  • the discharge end 33 is seated on the front cone 35, which has an axially movable closure cap 39 shown in dashed lines in FIG. 4.
  • the sealing cover is in the rear, shortened cone of the preceding rail vehicle 2 of the same type.
  • the cone 35 serves to close the rear opening of the drum ahead.
  • the types 3 and 4 rail vehicles in turn have a four-axle chassis 40 (FIG. 5).
  • the chassis has a structure 41 which is essentially formed by a tubular drum 42.
  • the tubular drum has external dimensions that correspond to the structure of the type 1 and 2 rail vehicle. Accordingly, a cylindrical middle section 43 is provided with conical end sections 44, 45, of which the front cone has a discharge opening 46 which is provided with a closure cap 47.
  • the cone 45 leads into the cone 44 of the preceding rail vehicle of the other type.
  • a drive 48 rotates the mixing drum 42 via a ring gear 49.
  • the mixing drum is provided with a mixing spiral 10 and a counter-rotating mixing spiral 10 or 12 of the same type and the same mode of operation as is used in the type 1 and 2 rail vehicles.
  • the front rail vehicle 5 has a rail chassis 51 which is extended in accordance with the exemplary embodiment.
  • the structure consists of a tilting frame 52, the tilting axis 53 of which is arranged at the rear end of the rail vehicle 5.
  • a tubular drum 54 is built on the tilting frame, which has a rear cone 57, the opening of which is closed with the cone of the following vehicle 4.
  • a dispensing device 55 is provided, which is provided with a closure cover 56.
  • the tubular drum 54 in contrast to the other tubular drums, has three manholes 58 to 60 which can be closed with lids instead of the manholes 50 and 50a in the construction of the type 3 and 4 vehicles or the manholes 15 and 16 of the type 1 and 2.
  • the tubular drum 54 is also provided on the inside with the mixing spirals 10 and 12, which have been discussed in connection with FIGS. 2 and 3.
  • the mixing drum 54 can also be rotated via a drive 61 and the ring gear 62.
  • a tilt cylinder 62a is articulated in the chassis at 63 and on the underside of the tilt frame 52 at 64.
  • the vehicle of the type (FIG. 5) has a connection for mixing water which flows in from a line 66 via a quantity indicator 65. It reaches a distributor 67, from which a plurality of nozzles 68 and 69 are acted on, which are fastened to the inner spiral 12.
  • This differs from Type 3, which also works as a mixer, but works dry.
  • a plurality of type 1 and 2 rail vehicles are preferably filled through the open manholes 15, 16 with an additional load for a batch of concrete, the flaps being open.
  • the flaps of the silo 14 After the flaps of the silo 14 have been closed, the amount of cement required for the batch of concrete in question is filled into the silo. Of course, the quantities filled in weighed as required for quality concrete. Then the manholes are closed.
  • the type 1, 2 vehicles are then used to transport the separate loads for one or more batches of concrete on site. The transport route is ended as soon as the automatic coupling of the first train from vehicles 1, 2 has been connected to the automatic coupling of vehicle 3 of the second train.
  • the flaps 24, 25 are opened in the rail vehicle 2 traveling ahead, as a result of which the entire amount of cement is poured into the aggregate load at once. This is indicated schematically in FIG. 2. After the cement has been added, the flaps 24, 25 are closed again. If the closure cover 39 is closed, the described loads are already intensively dry mixed in the rail vehicle 2 when the drum is rotating. If the relevant batch of concrete is called up, the lid 39 is opened or is already in the open state. Then the mixture easily enters the tubular drum of the rail vehicle 3. The structure of this vehicle is used exclusively to complete the dry mix so that empty vehicles 1 and 2 can be uncoupled and loaded again. The transport effect of the outer screw means that the mixture can overcome the distance between the rail vehicle 2 and the rail vehicle 4. This presupposes that the closure cover 47 is open. If the cover 47 is closed, the material to be mixed is circulated and further mixed dry.
  • the mixed material enters the tubular drum of the rail vehicle 4.
  • the rail vehicle 4 differs from the rail vehicle 3 only in the water supply 66, which has been described above. This enables an exact determination of the water-cement factor in the finished concrete. Since the water is supplied via the nozzles 68 and 69, the mixing water is evenly distributed in the dry mixture. At the same time, a lubricating film is formed on the flights of the screws 10, 12, which ensures the transport effect. If the cover 47 of the rail vehicle 4 is closed, the now wet concrete is thoroughly mixed in the tubular drum. As soon as the lid is opened, the finished batch of concrete arrives in the tubular drum 54 of the rail vehicle 5.
  • the batch of concrete may be temporarily stored with the remainder of the previous batch of concrete still present.
  • the tilting frame 52 enables the height of the discharge opening 55 to be adjusted, which is shown by the broken line in FIG. 1. This makes it possible to set different feed heights for concrete pumps, conveyor belts, circuit openings or the like.
  • the tubular drum of the rail vehicle 2 runs along and serves as a means of transport for conveying the dry mix into the following rail vehicles of type 1 and 2 when they are emptied, their automatic coupling with the rail vehicle 3 is released.
  • the train will be returned to reload.
  • the facility enables a changeover system and thus the provision of large quantities of quality concrete.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (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)

Abstract

1. Device for the preparation of concrete charges in underground workings, for which the volumes of cement and of dry or inherently wet additives, measured above ground, are both transported, as necessary, to the site in separate loads and are processed there, the device consisting of a vehicle superstructure (7) with a horizontal tubular drum (8) having at least one inner fixed mixing helix (10, 12) and an internally hollow cement silo (14) which is provided with bottom discharge (21) into the mixing chamber (22) of the tubular drum (8), characterised in that the silo (14) is arranged in the tubular drum (8) under manholes (15, 16) in the wall (17) and has the form of a cylindrical wall segment whose inner curvature is adapted for bottom discharge (21), which has two oppositely positioned flaps (24, 25) which can both be adjusted open and closed by means of a lever bar, whereby the silo (14) is positioned rigidly in the drum (8) in the longitudinal direction of the drum and the tubular drum (8) has two tubular drum ends (35, 36) of which at least one is provided as a closeable outlet aperture (33) for onward transport for the addition of water (66 to 69).

Description

Die Erfindung betrifft ein Verfahren zur Bereit­stellung von Betonchargen im Untertagebetrieb gemäß dem Oberbegriff des Patentanspruches 1. Ferner betrifft die Erfindung eine Vorrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for providing batches of concrete in underground operation according to the preamble of claim 1. Furthermore, the invention relates to a device for performing this method.

Die Erfindung ermöglicht die Bereitstellung von Betonchargen hauptsächlich im Tunnelbau, gegebenen­falls aber auch beim Ausbau von Strecken im Bergbau. Sie bezieht sich auf Verfahren, nach denen Beton­chargen erst vor Ort und nicht über Tage herge­stellt werden und bei denen deswegen Zement einer­seits und trockene bzw. eigenfeuchte Zuschläge, gegebenenfalls mit entsprechenden Betonzusätzen getrennt voneinander, jedoch gemeinsam vor Ort transportiert werden. Dadurch entfällt der Transport von nassem bzw. erdfeuchtem, über Tage hergestellten Fertigbeton und die damit in der Regel verbundene Nachmischung des angelieferten Betons vor Ort. Das erfindungsgemäße Verfahren ermöglicht es insbesondere, den Beton erst dann zuzubereiten, wenn er vor Ort von den dort durchzuführenden Ausbauarbeiten abgenommen wird.The invention enables the provision of batches of concrete mainly in tunnel construction, but possibly also when expanding lines in mining. It relates to processes according to which batches of concrete are only produced on site and not above ground, and therefore cement on the one hand and dry or self-moist aggregates, if necessary with appropriate concrete additives, are transported separately on site, however. This means that there is no need to transport wet or earth-moist ready-mixed concrete that has been manufactured for days and the associated subsequent mixing of the delivered concrete on site. The method according to the invention makes it possible in particular to prepare the concrete only when it is removed on site from the finishing work to be carried out there.

Derartige Verfahren sind bereits bekannt. Die Erfindung geht von einem dieser vorbekannten Ver­fahren aus, welches mit einem gleisgebundenen Fahrzeug mit einem speziellen Aufbau durchgeführt wird. Der Aufbau dieses Fahrzeuges weist mehrere Behälter auf, in denen Zement und Zuschläge gegebe­nenfalls mit Zusätzen getrennt, jedoch gemeinsam transportiert werden. Zwei nebeneinander angeordnete Behälter sind für den Zement je einer Betoncharge vorgesehen; zwei weitere Behälter enthalten die Zuschläge für jede dieser Betonchargen. Das Fahrzeug hat eine automatische Kupplung und ein Austrags­förderband. Mit der Kupplung läßt es sich mit einem vor Ort aufgestellten Aufgabeförderband eines fahr­baren Mischers mit unten angeordneter Betonpumpe verbinden, welche aus jeweils zwei Behältern eine Betoncharge übernimmt und der Betonpumpe die Beton­charge aufgibt. Mit dem Austragsförderband des Fahrzeuges werden die zu einer Betoncharge gehörigen Ladungen kontinuierlich abgezogen. Dabei sorgt die Behälteranordnung dafür, daß auf den unten auf dem Betonförderband liegenden Zuschlagsstoff der Zement in einer oben angeordneten Schicht aufgetragen wird. Die Mischung erfolgt jedoch in nennenswewrtem Umfang erst in dem dem Aufgabeband nachgeordneten Mischer. Hierbei muß zur Vermeidung der Staubbildung Wasser zugesetzt werden. Deswegen werden die trockenen Bestandteile des Betons zunächst getrennt voneinander gehalten und praktisch erst im Mischer unter Zusatz des Wassers angemacht, d.h. durchgemischt.Such methods are already known. The invention is based on one of these previously known methods, which is carried out with a track-bound vehicle with a special structure. The construction of this vehicle has several containers in which cement and aggregates are separated, if necessary with additives, but are transported together. Two containers arranged next to each other are provided for the cement in each batch of concrete; two additional containers contain the surcharges for each of these batches of concrete. The vehicle has an automatic clutch and a discharge conveyor. With the coupling, it can be connected to an on-site feed conveyor belt of a mobile mixer with a concrete pump arranged at the bottom, which takes over a batch of concrete from two containers and feeds the batch of concrete to the concrete pump. With the vehicle's discharge conveyor, the loads belonging to a concrete batch are continuously removed. The container arrangement ensures that the cement is applied in a layer arranged on top of the aggregate lying on the bottom of the concrete conveyor belt. However, the mixing takes place to a significant extent only in the mixer downstream of the feed belt. Water must be added to avoid dust formation. For this reason, the dry constituents of the concrete are initially kept separate from each other and practically only mixed in with the addition of water in the mixer, i.e. mixed.

Nachteilig ist hieran die vergleichsweise schlechte Betonqualität. Diese ist einerseits eine Folge der durch die beschriebenen Vorgänge bedingten Ungleich­mäßigkeiten beim Zusammenbringen von Zement, Zuschlägen und Wasser, welche vor allem durch die nicht beherrschbaren Auslaufvorgänge an den Behältern über dem Austragsband, aber auch bei der Wasserzugabe bedingt sind und sich vor der Betonpumpe nicht mehr restlos beseitigen lassen. Es ist organisatorisch auch schwierig, die jeweils hergestellte Betoncharge vollständig abzunehmen, d.h. das Betonieren und die Herstellung des Betons in der dazu erforderlichen Genauigkeit aufeinander abzustimmen. Im Ergebnis steht deswegen bei dem vorbekannten Verfahren frischer Qualitätsbeton vor Ort nicht zur Verfügung. Nach­teilig ist ferner die durch die notwendige Wasser­zugabe auf dem Transportweg in Kauf zu nehmende Verschmutzung durch nasse und erhärtete Beton­bestandteile der der Betonpumpe vorgeschalteten Förderbänder und Maschinen.The disadvantage here is the comparatively poor quality of the concrete. On the one hand, this is a consequence of irregularities in the bringing together of cement, aggregates and water due to the described processes, which are primarily due to the uncontrollable run-out processes on the containers above the discharge belt, but also when adding water and cannot be completely eliminated in front of the concrete pump. Organizationally, it is also difficult to completely remove the batch of concrete produced, ie to match the concreting and the production of the concrete to one another with the required accuracy. As a result, fresh quality concrete is therefore not available on site in the previously known method. A further disadvantage is the contamination by wet and hardened concrete components of the conveyor belts and machines connected upstream of the concrete pump, which has to be accepted as a result of the necessary addition of water on the transport route.

Der Erfindung liegt die Aufgabe zugrunde, das als bekannt vorausgesetzte Verfahren so zu führen, daß vor Ort frischer Qualitätsbeton zur Verfügung ge­stellt werden kann und eine wesentliche Ver­schmutzungsgefahr nicht mehr in Kauf genommen zu werden braucht.The invention has for its object to perform the known as a method so that fresh quality concrete can be made available on site and a significant risk of contamination no longer has to be accepted.

Diese Aufgabe löst die Erfindung mit den Merkmalen des Patentanspruches 1. Zweckmäßige Weiterbildungen des Erfindungsgedankens sind Gegenstand der Unter­ansprüche.The invention solves this problem with the features of claim 1. Appropriate developments of the inventive concept are the subject of the dependent claims.

Gemäß der Erfindung werden durch die nach dem Transport, d.h. vor Ort vorgenommene Aufschüttung der Zement­ladung auf die Zuschlagladung alle Ungleichmäßigkeiten beim Zusammenbringen der zu einer Betoncharge gehörigen, trockenen Komponenten beseitigt. Die Gesamtmenge wird infolge ihrer Durchmischung homogenisiert, dann erst trans­portiert und mit dem Anmachwasser versetzt.Diese auf trok­kenem Wege erzielte Durchmischung der Komponenten führt nicht nur zu einer vollkommen gleichmäßigen Mischung und damit zu einem Qualitätsbeton. Man kann die Mischung auch trocken halten, bis vor Ort eine bestimmte Menge von Beton benötigt wird. Da man erfindungsgemäß den Zement mit den Zuschlägen trockenmischt, kommt es dabei auch zu einer weitgehenden Bindung des Staubes ohne Wasserzusatz und deswegen zu keinen Verschmutzungen. Die Folge ist ein Qualitätsbeton.According to the invention, after the transport, that is to say the filling of the cement load on the aggregate load on site, all irregularities in bringing together the batches belonging to a concrete batch are dry components eliminated. The total amount is homogenized due to its thorough mixing, then transported and mixed with the mixing water. This dry mixing of the components not only leads to a completely uniform mixing and thus to a quality concrete. You can also keep the mix dry until a certain amount of concrete is needed on site. Since, according to the invention, the cement is dry-mixed with the aggregates, the dust is also largely bound without the addition of water and therefore no contamination. The result is a quality concrete.

Mit den Merkmalen des Patentanspruches 2 läßt sich eine noch bessere Abstimmung der Teilmengen einer Betoncharge auf die Abnahmemengen vor Ort realisieren. Dabei geht der Vorteil des Qualitätsbetons nicht verloren.With the features of claim 2, an even better coordination of the partial quantities of a concrete batch with the purchase quantities can be realized on site. The advantage of quality concrete is not lost.

Vorzugsweise wird das erfindungsgemäße Verfahren mit den Merkmalen des Patentanspruches 3 durchgeführt. Hierdurch ist es möglich, die beim Transport unver­meidlichen mechanischen Beanspruchungen der trockenen Betonkomponenten zur weiteren Durchmischung auszu­nutzen, was den Vorteil einer Verkürzung der Trocken­mischanlage hat. Dabei lassen sich mehrere Trocken­mischvorgänge in entsprechend hintereinandergeschal­teten Trockenmischern miteinander verbinden, was zu einer gedrängten Bauart der zur Verfahrensdurchführung geeigneten erfindungsgemäßen Vorrichtung führt. Das ist wegen der räumlich beengten Verhältnisse im Untertagebetrieb erwünscht, die zu einer langgestreck­ten Bauart zwingen.The method according to the invention is preferably carried out with the features of patent claim 3. This makes it possible to take advantage of the mechanical stresses on the dry concrete components, which are unavoidable during transport, for further mixing, which has the advantage of shortening the dry mixing system. In this case, several dry mixing processes can be connected to one another in correspondingly connected dry mixers, which leads to a compact design of the device according to the invention suitable for carrying out the method. This is desirable because of the limited space in underground operations, which force an elongated construction.

Mit den Merkmalen des Patentanspruches 4 verkürzt man den Transportweg auf eine Mischstrecke, die bei der Verwirklichung des erfindungsgemäßen Verfahrens auf mehrere hintereinandergeschaltete Trockenmischer, vorzugsweise Fahrmischer aufgeteilt werden kann. Förderbänder und ähnliche Zwischenfördermittel können dann ganz entfallen.With the features of claim 4, the transport route is shortened to a mixing section, which can be divided into several dry mixers connected in series, preferably truck mixers, when implementing the method according to the invention. Conveyor belts and similar intermediate funding can then be dispensed with entirely.

Die Einzelheiten und die Merkmale einer für die Durchführung des erfindungsgemäßen Verfahrens geeig­neten Vorrichtung ergeben sich aus der nachfolgenden Beschreibung anhand der Figuren in der Zeichnung; es zeigen

  • Fig. 1 in Seitenansicht und teilweise aufgebrochen eine erfindungsgemäße Vorrichtung, welche als Ganzes fahrbar eingerichtet ist,
  • Fig. 2 einen Querschnitt, welcher das Zusammen­bringen der trockenen Bestandteile einer Betoncharge verdeutlicht längs der Linie II-II der Fig.4,
  • Fig. 3 den Gegenstand der Fig. 2 nach dem Ab­transport der trockenen Mischung im Schnitt längs der Linie III - III der Fig.4,
  • Fig. 4 eine vergrößerte Darstellung eines Teils der Fig.1 und
  • Fig. 5 in der Fig. 4 entsprechender Darstellung einen anderen Teil der Fig.1.
The details and the features of a device suitable for carrying out the method according to the invention result from the following description with reference to the figures in the drawing; show it
  • 1 is a side view and partially broken open a device according to the invention, which is designed to be mobile as a whole,
  • 2 shows a cross section which illustrates the bringing together of the dry components of a batch of concrete along the line II-II of FIG. 4,
  • 3 after removal of the dry mixture in section along the line III - III of Figure 4,
  • Fig. 4 is an enlarged view of part of the Fig.1 and
  • 5 corresponding representation of another part of FIG. 1.

Die in Fig. 1 wiedergegebene erfindungsgemäße Vorrich­tung besteht aus mehreren, zusammengekoppelten Schienenfahrzeugen 1 bis 5. Die Schienenfahrzeuge 1 und 2 sind identisch ausgebildet. Die Anzahl dieser identischen Fahrzeuge läßt sich über die wiedergege­bene Anzahl hinaus beliebig vergrößern. Die Schienen­fahrzeuge 3 und 4 haben gegenüber den Schienenfahrzeugen 1 und 2 einen abgeänderten Aufbau. Ihre Anzahl läßt sich auch vermehren. Es ist jedoch ausreichend, wenn eines dieser Fahrzeuge vorgesehen wird. Das Schienen­fahrzeug 5 hat einen Aufbau besonderer Art. In der Regel wird nur eines dieser Fahrzeuge in dem Zug benötigt. Außerdem ist darauf hinzuweisen, daß die Schienenfahrzeuge automatische Kupplungen aufweisen. In der Regel werden Schienenfahrzeuge der Typen 3 bzw. 4 und 5 für mehrere Arbeitsvorgänge vor Ort stationär aufgestellt. Schienenfahrzeuge des Typs 1 und 2 werden bedarfsweise angekoppelt und abge­kuppelt. Diese Fahrzeuge verkehren zwischen über Tage und unter Tage. Diese Arbeitsweise ist für den Tunnelbau vorgesehen. Handelt es sich um den Einsatz im Bergbau, so können auch die Schienenfahrzeuge des Typs 1, 2 under Tage verbleiben, sofern eine entspre­chende Befülleinrichtung unter Tage verfügbar ist.The device shown in Fig. 1 consists of several, coupled together Rail vehicles 1 to 5. The rail vehicles 1 and 2 are identical. The number of these identical vehicles can be increased beyond the number shown. The rail vehicles 3 and 4 have a modified structure compared to the rail vehicles 1 and 2. Their number can also be increased. However, it is sufficient if one of these vehicles is provided. The rail vehicle 5 has a special construction. As a rule, only one of these vehicles is required in the train. It should also be noted that the rail vehicles have automatic clutches. As a rule, type 3 or 4 and 5 rail vehicles are installed stationary for several work processes on site. Type 1 and 2 rail vehicles are coupled and uncoupled as required. These vehicles operate between above ground and underground. This mode of operation is intended for tunnel construction. If it is used in mining, the rail vehicles of type 1, 2 can also remain underground, provided that a corresponding filling device is available underground.

Bei den Schienenfahrzeugen des Typs 1, 2 handelt es sich um ein vierachsiges Untergestell 6 mit einem Fahrzeugaufbau 7 mit einer liegenden Rohrtrommel 8 (Fig. 4). Diese enthält in ihrem Inneren eine an der Innen­wand 9 befestigte Misch- und Transportspirale 10 (Fig. 3). Über Abstandshalter 11 ist eine aus Blech bestehende, weitere Transportspirale 12 konzentrisch zur außen liegenden Spirale 10 angeordnet. Die Steigungen der Spiralen sind gegenläufig, ist die in der Rohrtrommel 8 vorn und hinten verschlossen, so transportieren die Schnecken das Mischgut hin und her. Der zwischen den beiden Spiralen 10, 12 vorgesehene Zwischenraum 13 ermöglicht eine Freifallmischung. Ist die Trommel in Förderrichtung der Außenspirale 10 geöffnet, so wird das Mischgut aus dieser Öffnung ausgetragen. Ist diese Öffnung geschlossen, die Trommel aber am anderen Ende offen, so kann sie durch diese Öffnung gefüllt werden. Sind beide Öffnungen offen, so wirkt die Außenspirale 10 als Fördermittel.The rail vehicles of type 1, 2 are a four-axle base frame 6 with a vehicle body 7 with a lying tubular drum 8 (FIG. 4). This contains in its interior a mixing and transport spiral 10 fastened to the inner wall 9 (FIG. 3). A further transport spiral 12 made of sheet metal is arranged concentrically with the spiral 10 located on the outside via spacers 11. The gradients of the spirals are in opposite directions; if the pipe drum 8 is closed at the front and rear, the screws transport the mix back and forth. The one provided between the two spirals 10, 12 Gap 13 enables free fall mixing. If the drum is open in the conveying direction of the outer spiral 10, the mix is discharged from this opening. If this opening is closed, but the drum is open at the other end, it can be filled through this opening. If both openings are open, the outer spiral 10 acts as a funding.

Aus dem Innenraum der Rohrtrommel 8 ist ein Zement­silo 14 ausgespart. Dieser Zementsilo hat die Form eines Zylindermantelsegmentes. Er wird dementspre­chend außen von der mit Mann- bzw. Befüllöchern 15, 16 versehenen Blechhaut 17 der Rohrtrommel 8 begrenzt. Innen dient ein parallel gekrümmter Boden 18 als innerer Abschluß. Ebene Seitenwände 19, 20 vollenden die Wand des Zementsilos 14.A cement silo 14 is left out of the interior of the tubular drum 8. This cement silo has the shape of a cylinder jacket segment. Accordingly, it is delimited on the outside by the sheet metal skin 17 of the tubular drum 8 provided with manholes 15, 16. Inside, a parallel curved bottom 18 serves as an inner closure. Flat side walls 19, 20 complete the wall of the cement silo 14.

Der Silo 14 hat eine Bodenentleerung, welche allge­mein mit 21 in Fig. 2 bezeichnet ist. Die Boden­entleerung führt aus dem Raum des Zementsilos 14 in den Mischraum 22, der gleichzeitig als Behälter zur Aufnahme der trockenen Zuschläge bzw. Zuschlagsstoffe 23 einer Betoncharge dient. Die Bodenentleerung wird von zwei Schwenkklappen bewirkt, die in strich­punktierter Linienführung in geöffnetem Zustand bei 24 un d 25 in Fig. 2 dargestellt sind. Die Klappen werden mit Hilfe eines Lenkergestänges verstellt. Dazu dient eine zweiarmige Schwinge 26, die an einem Ende mit einem hydraulischen Arbeitszylinder 27a verbunden ist und um eine feste Achse 26a schwenkt. Lenker 27, 28 verbinden die Schwinge 26 mit Schwingen 29 und 30, die um feste Achsen 31, 32 schwenken und dabei über Konsolen auf der Außenhaut der Schwenk­klappen 24, 25 die Klappen in die geschlossene oder in die geöffnete Stellung bewegen und halten. Wie sich aus der Darstellung der Fig. 1 ergibt, ist der beschriebene Antrieb im vorderen Teil, d.h. an der Abgabeöffnung 33 der Rohrtrommel 8 angebracht.The silo 14 has a floor drain, which is generally designated 21 in FIG. 2. The floor emptying leads from the room of the cement silo 14 into the mixing room 22, which at the same time serves as a container for receiving the dry aggregates or aggregates 23 of a batch of concrete. The bottom is emptied by two swivel flaps, which are shown in dash-dotted lines in the open state at 24 and 25 in FIG. 2. The flaps are adjusted using a handlebar linkage. A two-armed swing arm 26 is used for this purpose, which is connected at one end to a hydraulic working cylinder 27a and pivots about a fixed axis 26a. Handlebars 27, 28 connect the rocker 26 to rockers 29 and 30, which pivot about fixed axes 31, 32 and thereby move and hold the flaps in the closed or in the open position via brackets on the outer skin of the swivel flaps 24, 25. As can be seen from the illustration in FIG. 1, the drive described is attached in the front part, ie on the discharge opening 33 of the tubular drum 8.

Die Rohrtrommel 8 hat einen zylindrischen Abschnitt 34 und an jedem Ende einen Konus 35 bzw. 36. Über einen Antrieb 37 mit einem auf dem zylindrischen Abschnitt 34 angeordneten Zahnkranz 38 läßt sich die Rohrtrommel um ihre Mittelachse 39a drehen. Das Abgabeende 33 sitzt am vorderen Konus 35, der einen axial beweglichen und in Fig. 4 gestrichelt wiedergegebenen Verschlußdeckel 39 aufweist. Der Verschlußdeckel liegt im hinteren, verkürzten Konus des vorausfahrenden Schienenfahrzeuges 2 gleichen Typs. Der Konus 35 dient als Verschluß der hinteren Öffnung der vorausfahrenden Trommel.The tubular drum 8 has a cylindrical section 34 and a cone 35 or 36 at each end. The tubular drum can be rotated about its central axis 39a via a drive 37 with a toothed ring 38 arranged on the cylindrical section 34. The discharge end 33 is seated on the front cone 35, which has an axially movable closure cap 39 shown in dashed lines in FIG. 4. The sealing cover is in the rear, shortened cone of the preceding rail vehicle 2 of the same type. The cone 35 serves to close the rear opening of the drum ahead.

Die Schienenfahrzeuge der Typen 3 und 4 weisen ihrer­seits ein vierachsiges Fahrgestell 40 auf (Fig. 5). Das Fahrgestell hat einen Aufbau 41, der im wesentlichen von einer Rohrtrommel 42 gebildet wird. Die Rohrtrommel hat Außenabmessungen, die dem Aufbau des Schienen­fahrzeuges des Typs 1 und 2 entspricht. Dementspre­chend ist ein zylindrischer Mittlabschnitt 43 vorge­sehen mit konischen Endabschnitten 44, 45, von denen der vordere Konus eine Abgabeöffnung 46 aufweist, die mit einem Verschlußdeckel 47 versehen ist. Der Konus 45 führt in den Konus 44 des vorausfahrendn Schienenfahrzeugs des anderen Typs. Ein Antrieb 48 dreht die Mischtrommel 42 über einen Zahnkranz 49. Innen ist die Mischtrommel mit einer Mischspirale 10 und einer gegenläufigen Mischspirale 1o bzw. 12 des gleichen Typs und der gleichen Wirkungsweise versehen, wie er in den Schienenfahrzeugen des Typs 1 und 2 verwendet wird.The types 3 and 4 rail vehicles in turn have a four-axle chassis 40 (FIG. 5). The chassis has a structure 41 which is essentially formed by a tubular drum 42. The tubular drum has external dimensions that correspond to the structure of the type 1 and 2 rail vehicle. Accordingly, a cylindrical middle section 43 is provided with conical end sections 44, 45, of which the front cone has a discharge opening 46 which is provided with a closure cap 47. The cone 45 leads into the cone 44 of the preceding rail vehicle of the other type. A drive 48 rotates the mixing drum 42 via a ring gear 49. Inside, the mixing drum is provided with a mixing spiral 10 and a counter-rotating mixing spiral 10 or 12 of the same type and the same mode of operation as is used in the type 1 and 2 rail vehicles.

Das vordere Schienenenfahrzeug 5 hat ein gemäß dem Ausführungsbeispiel verlängertes Schienenfahr­werk 51. Der Aufbau besteht aus einem Kipprahmen 52, dessen Kippachse 53 am hinteren Ende des Schienenfahrzeuges 5 angeordnet ist. Auf dem Kipprahmen ist eine Rohrtrommel 54 aufgebaut, welche einen hinteren Konus 57 besitzt dessen Öffnung mit dem Konus des nachfolgenden Fahrzeugs 4 ver­schlossen ist. Am vorderen Ende ist eine Abgabevorrichtung 55 vorgesehen, die mit einem Verschlußdeckel 56 versehen ist. Die Rohr­trommel 54 hat wegen der größeren Länge des zylindri­schen Abschnittes 57a im Gegensatz zu den übrigen Rohrtrommeln drei mit Deckeln verschließbare Mannlöcher 58 bis 60 statt der Mannlöcher 50 und 50a beim Auf­bau der Fahrzeuge des Typs 3 und 4 bzw. der Mann­löcher 15 und 16 des Typs 1 und 2. Ebenso wie die anderen Rohrtrommeln ist auch die Rohrtrommel 54 innen mit den Mischspiralen 10 und 12 versehen, die im Zusammenhang mit den Fig. 2 und 3 erörtert worden sind. Die Mischtrommel 54 kann im übrigen über einen Antrieb 61 und den Zahnkranz 62 gedreht werden. Ein Kippzylinder 62a ist im Fahrgestell bei 63 und an der Unterseite des Kipprahmens 52 bei 64 angelenkt.The front rail vehicle 5 has a rail chassis 51 which is extended in accordance with the exemplary embodiment. The structure consists of a tilting frame 52, the tilting axis 53 of which is arranged at the rear end of the rail vehicle 5. A tubular drum 54 is built on the tilting frame, which has a rear cone 57, the opening of which is closed with the cone of the following vehicle 4. At the front end, a dispensing device 55 is provided, which is provided with a closure cover 56. Because of the greater length of the cylindrical section 57a, the tubular drum 54, in contrast to the other tubular drums, has three manholes 58 to 60 which can be closed with lids instead of the manholes 50 and 50a in the construction of the type 3 and 4 vehicles or the manholes 15 and 16 of the type 1 and 2. Like the other tubular drums, the tubular drum 54 is also provided on the inside with the mixing spirals 10 and 12, which have been discussed in connection with FIGS. 2 and 3. The mixing drum 54 can also be rotated via a drive 61 and the ring gear 62. A tilt cylinder 62a is articulated in the chassis at 63 and on the underside of the tilt frame 52 at 64.

Das Fahrzeug des Typs (Fig. 5) hat einen Anschluß für Anmachwasser, welches über einen Mengenanzeiger 65 aus einer Leitung 66 zufließt. Es gelangt in einen Ver­teiler 67, aus dem mehrere Düsen 68 bzw. 69 beauf­schlagt werden, die an der Innenspirale 12 befestigt sind. Hierdurch unterscheidet es sich von dem Typ 3, der zwar auch als Mischer wirkt, aber trocken arbeitet.The vehicle of the type (FIG. 5) has a connection for mixing water which flows in from a line 66 via a quantity indicator 65. It reaches a distributor 67, from which a plurality of nozzles 68 and 69 are acted on, which are fastened to the inner spiral 12. This differs from Type 3, which also works as a mixer, but works dry.

Im Betrieb werden vorzugsweise mehrere Schienenfahr­zeuge des Typs 1 und 2 über Tage durch die geöffneten Mannlöcher 15, 16 zunächst mit einer Zuschlagladung für eine Betoncharge gefüllt, wobei die Klappen geöffnet sind. Nachdem die Klappen des Silos 14 geschlossen worden sind, wird die für die betreffende Betoncharge erforderliche Zementmenge in den Silo eingefüllt. Selbstverständlich werden die eingefüllten Mengen abgewogen, wie dies für einen Qualitätsbeton erforder­lich ist. Danach werden die Mannlöcher verschlossen. Mit den Fahrzeugen des Typs 1, 2 werden dann die von­einander getrennten Ladungen für eine bzw. mehrere Betonchargen vor Ort antransportiert. Der Transportweg ist beendet, sobald die automatische Kupplung des ersten Zuges aus den Fahrzeugen 1, 2 mit der automatischen Kupplung des Fahrzeuges 3 des zweiten Zuges ver­bunden worden ist.In operation, a plurality of type 1 and 2 rail vehicles are preferably filled through the open manholes 15, 16 with an additional load for a batch of concrete, the flaps being open. After the flaps of the silo 14 have been closed, the amount of cement required for the batch of concrete in question is filled into the silo. Of course, the quantities filled in weighed as required for quality concrete. Then the manholes are closed. The type 1, 2 vehicles are then used to transport the separate loads for one or more batches of concrete on site. The transport route is ended as soon as the automatic coupling of the first train from vehicles 1, 2 has been connected to the automatic coupling of vehicle 3 of the second train.

Wird eine Betoncharge benötigt, so werden im vorausfah­renden Schienenfahrzeug 2 die Klappen 24, 25 geöffnet, wodurch die gesamte Zementmenge auf einmal in die Zuschlagladung ausgeschüttet wird. Das ist schematisch in der Fig. 2 angedeutet. Nach der Zugabe des Zementes werden die Klappen 24, 25 wieder geschlossen. Sofern der Verschlußdeckel 39 geschlossen ist, findet bei rotierender Trommel bereits in dem Schienenfahrzeug 2 eine intensive trockene Durchmischung der beschriebenen Ladungen statt. Wird die betreffende Betoncharge abgerufen, so wird der Deckel 39 geöffnet bzw. befindet sich dieser bereits im geöffneten Zustand. Dann tritt die Mischung ohne weiteres in die Rohrtrommel des Schienenfahrzeuges 3 ein. Der Aufbau dieses Fahrzeuges dient ausschließlich dazu, die Trockenmischung fertigzustellen, so daß leere Fahrzeuge 1 und 2 abgekoppelt und erneut beladen werden können. Die Transportwirkung der Außenschnecke führt dazu, daß die Mischung die Entfernung zwischen dem Schienenfahrzeug 2 und dem Schienenfahrzeug 4 überwinden kann. Das setzt voraus, daß der Verschlußdeckel 47 geöffnet ist. Ist der Verschlußdeckel 47 geschlossen, so wird das Mischgut umgewälzt und trocken weitergemischt.If a batch of concrete is required, the flaps 24, 25 are opened in the rail vehicle 2 traveling ahead, as a result of which the entire amount of cement is poured into the aggregate load at once. This is indicated schematically in FIG. 2. After the cement has been added, the flaps 24, 25 are closed again. If the closure cover 39 is closed, the described loads are already intensively dry mixed in the rail vehicle 2 when the drum is rotating. If the relevant batch of concrete is called up, the lid 39 is opened or is already in the open state. Then the mixture easily enters the tubular drum of the rail vehicle 3. The structure of this vehicle is used exclusively to complete the dry mix so that empty vehicles 1 and 2 can be uncoupled and loaded again. The transport effect of the outer screw means that the mixture can overcome the distance between the rail vehicle 2 and the rail vehicle 4. This presupposes that the closure cover 47 is open. If the cover 47 is closed, the material to be mixed is circulated and further mixed dry.

Bei geöffnetem Verschlußdeckel 47 gelangt das Mischgut in die Rohrtrommel des Schienenfahrzeuges 4. Das Schienenfahrzeug 4 unterscheidet sich vom Schienen­fahrzeug 3 nur durch die Wasserzuführung 66, die oben beschrieben worden ist. Diese ermöglicht eine genaue Bestimmung des Wasser-Zement-Faktors im fertigen Beton. Da das Wasser über die Düsen 68 und 69 zuge­führt wird, findet eine gleichmäßige Verteilung des Anmachwassers in der Trockenmischung statt. Gleichzei­tig entsteht auf den Gängen der Schnecken 10, 12 ein Schmierfilm, der die Transportwirkung sicherstellt. Ist der Verschlußdeckel 47 des Schienenfahrzeuges 4 geschlossen, so findet in der Rohrtrommel eine inten­sive Durchmischung des nunmehr nassen Betons statt. Sobald der Deckel geöffnet wird, gelangt die fertige Betoncharge in die Rohrtrommel 54 des Schienenfahr­zeuges 5. In dieser ist die Betoncharge gegebenen­falls mit dem noch vorhandenen Rest der vorausgehen­den Betoncharge zwischengespeichert. Der Kipprahmen 52 ermöglicht die Verstellung der Austragsöffnung 55 der Höhe nach, was durch die gestrichelte Darstellung in der Fig. 1 wiedergegeben ist. Dadurch lassen sich verschiedene Aufgabehöhen für Betonpumpen, Transport­bänder, Schaltungsöffnungen o. dergl. einstellen.When the cover 47 is open, the mixed material enters the tubular drum of the rail vehicle 4. The rail vehicle 4 differs from the rail vehicle 3 only in the water supply 66, which has been described above. This enables an exact determination of the water-cement factor in the finished concrete. Since the water is supplied via the nozzles 68 and 69, the mixing water is evenly distributed in the dry mixture. At the same time, a lubricating film is formed on the flights of the screws 10, 12, which ensures the transport effect. If the cover 47 of the rail vehicle 4 is closed, the now wet concrete is thoroughly mixed in the tubular drum. As soon as the lid is opened, the finished batch of concrete arrives in the tubular drum 54 of the rail vehicle 5. In this, the batch of concrete may be temporarily stored with the remainder of the previous batch of concrete still present. The tilting frame 52 enables the height of the discharge opening 55 to be adjusted, which is shown by the broken line in FIG. 1. This makes it possible to set different feed heights for concrete pumps, conveyor belts, circuit openings or the like.

Sobald das Schienenfahrzeug 2 eine Charge abgegeben hat, kann eine weitere Charge aus dem Schienenfahrzeug 1 in der beschriebenen Weise verarbeitet werden. Dabei läuft die Rohrtrommel des Schienenfahrzeuges 2 mit und dient als Transportmittel zur Förderung der Trockenmischung in die nachfolgenden Schienenfahrzeuge des Typs 1 und 2 wenn diese entleert sind, wird deren automatische Kupplung mit dem Schienenfahrzeug 3 gelöst. Der Zug wird zur erneuten Beladung zurückgefahren. Die Einrichtung ermöglicht ein Wechselzugsystsem und damit die Bereitstellung großer Mengen von Qualitäts­beton.As soon as the rail vehicle 2 has delivered a batch, a further batch from the rail vehicle 1 can be processed in the manner described. The tubular drum of the rail vehicle 2 runs along and serves as a means of transport for conveying the dry mix into the following rail vehicles of type 1 and 2 when they are emptied, their automatic coupling with the rail vehicle 3 is released. The train will be returned to reload. The facility enables a changeover system and thus the provision of large quantities of quality concrete.

Claims (13)

1. Verfahren und Vorrichtung zur Bereitstellung von Betonchargen im Untertagebetrieb, deren über Tage abgemessene Mengen an Zement und trockenen bzw. eingefeuchteten Zuschlägen gegebenenfalls mit Zusätzen in getrennten Ladungen gemeinsam vor Ort antransportiert und dort verarbeitet werden, wobei zunächst die Zementladung auf die Zuschlagladung aufgebracht und in einen Mischer transportiert wird, in den die Betoncharge unter Zusatz von Wasser zur Mischung zubereitet wird, dadurch gekennzeichnet, daß nach dem Antransport die Zementladung als Ganze auf die Zuschlagladung aufgeschüttet wird, worauf die beiden Ladungen trocken durchgemischt und transportiert werden und das Wasser der aus den Ladungen hergestellten Mischung zugesetzt wird.1.Procedure and device for providing concrete batches in underground operations, the amounts of cement and dry or moistened aggregates measured over the day, possibly with additives in separate loads, are transported together on site and processed there, with the cement load first being applied to the aggregate load and in a mixer is transported in which the batch of concrete is prepared with the addition of water to the mixture, characterized in that after the transport, the cement load as a whole is poured onto the aggregate load, whereupon the two loads are mixed and transported dry and the water from the Charge produced mixture is added. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Betoncharge unter weiterem Durchmischen zwischengespeichert wird.2. The method according to claim 1, characterized in that the concrete batch is temporarily stored with further mixing. 3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Trockenmischung auf ihrem Transportweg einem oder mehreren weiteren Mischvorgängen unterworfen wird.3. The method according to any one of claims 1 or 2, characterized in that the dry mixture is subjected to one or more further mixing operations on its transport route. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Ladungen mischend transportiert werden.4. The method according to any one of claims 1 to 3, characterized in that the charges are transported mixed. 5. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 4, gekennzeichnet durch einen Fahrzeugaufbau (7) mit einer liegenden Rohrtrommel (8) mit wenigstens einer innen festen Mischspirale (10, 12) und einem innen ausgesparten Zementsilo (14), welcher eine Bodenentleerung (21) in den Mischraum (22) der Rohrtrommel (8) aufweist, wobei wenigstens eines der beiden Rohrtrommel­enden (35, 36) als verschließbare Abgabeöffnung (33) für den Weitertransport zur Wasserzugabe (66 bis 69) vorgesehen ist.5. Device for performing the method according to one of claims 1 to 4, characterized by a vehicle body (7) with a lying tubular drum (8) with at least one internally fixed mixing spiral (10, 12) and an internally recessed cement silo (14), which has a floor drain (21) in the mixing chamber (22) of the tubular drum (8), at least one of the two tubular drum ends (35, 36) being provided as a closable discharge opening (33) for further transport for adding water (66 to 69). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Silo unter Mannlöchern (15, 16) im Mantel (17) der Rohrtrommel (8) angeordnet ist und die Form eines Zylindermantel­segmentes aufweist, dessen Innenkrümmung als Bodenentleerung (21) ausgebildet ist.6. The device according to claim 5, characterized in that the silo is arranged under manholes (15, 16) in the jacket (17) of the tubular drum (8) and has the shape of a cylinder jacket segment, the inner curvature of which is designed as a floor drain (21). 7. Vorrichtung nach einem der Ansprüche 5 bis 6, dadurch gekennzeichnet, daß die Bodenentleerung zwei gegenläufige Klappen (24, 25) aufweist, die über ein Hebelgestänge gemeinsam auf- und zustellbar sind.7. Device according to one of claims 5 to 6, characterized in that the bottom emptying has two opposing flaps (24, 25) which can be set up and delivered together via a lever linkage. 8. Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß zur Klappenverstellung eine zentrale Schwinge (26) dient, welche über Lenker (27, 28) und Schwenkarme (29, 30) die Bodenentleerungsklappen (24, 25) um feste Achsen (31, 32) schwenkt.8. Device according to one of claims 5 to 7, characterized in that a central rocker arm (26) is used for flap adjustment, which via handlebars (27, 28) and swivel arms (29, 30) the bottom emptying flaps (24, 25) about fixed axes (31, 32) pivots. 9. Vorrichtung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß zur Wasserzugabe eine Rohrtrommel (42) dient, welche eine außen feste Mischspirale (10) und eine gegenläufige, über Abstandshalter (11) feste Innenmischspirale (12) aufweist, an der zur Wasserverteilung Düsen (68, 69) angeordnet sind.9. Device according to one of claims 5 to 8, characterized in that for the addition of water, a tubular drum (42) is used, which has an externally fixed mixing spiral (10) and an opposing, via spacers (11) fixed internal mixing spiral (12) on the nozzles (68, 69) are arranged for water distribution. 10. Vorrichtung nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß ein oder mehrere Fahrzeuge (1, 2) mit einem Aufbau aus Rohrtrommel (8) und Zementsilo (14) und ineinandergeführten Rohrtrommelenden vorgesehene Zugeinheit bilden und eine zweite Zugeinheit vorgesehen ist, die am Zugende wenigstens ein Fahrzeug (4), dessen Aufbau die zum Wasserzusatz dienende Rohrtrommel (8) aufweist und am Zuganfang ein weiteres Fahr­zeug (5) zur Aufnahme der Betonchargen aufweist.10. The device according to one of claims 5 to 9, characterized in that one or more vehicles (1, 2) with a structure of tubular drum (8) and cement silo (14) and telescoping tubular drum ends form the provided traction unit and a second traction unit is provided, at the end of the train at least one vehicle (4), the structure of which has the tubular drum (8) used to add water and at the beginning of the train has another vehicle (5) for receiving the batches of concrete. 11. Vorrichtung nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, daß die zweite Zugeinheit am Zugende ein Fahrzeug (3) mit einem Aufbau führt, welcher eine Rohrtrommel (8) mit wenigstens einer Mischspirale (10, 12) zum Trockenmischen aufweist, wobei die Rohrtrommel (8) die Trocken­mischung dem folgenden Fahrzeug (4) mit der zur Wasserzugabe dienenden Rohrtrommel (42) unmittel­bar übergibt.11. The device according to one of claims 5 to 10, characterized in that the second train unit at the end of the train leads a vehicle (3) with a structure which has a tubular drum (8) with at least one mixing spiral (10, 12) for dry mixing, wherein the tubular drum (8) passes the dry mixture directly to the following vehicle (4) with the tubular drum (42) serving to add water. 12. Vorrichtung nach einem der Ansprüche 5 bis 11, dadurch gekennzeichnet, daß das am Zugende der zweiten Zugeinheit fahrende Fahrzeug (3) eine in einer außen festen Mischspirale (10) angeordnete und über Abstandshalter (11) an dieser feste innere Mischspirale 12 sowie einen in Förderrichtung der äußeren Mischspirale (10) vorn liegenden Deckel aufweist, wobei bei geöffnetem Deckel die äußere Mischspirale (10) dem folgenden Fahrzeug (4) das trockene Mischgut aufgibt, dessen die Rohrtrommel (8) zur Wasserzugabe dient.12. The device according to one of claims 5 to 11, characterized in that the vehicle traveling at the end of the second train unit (3) is arranged in an externally fixed mixing spiral (10) and spacers (11) on this fixed inner mixing spiral 12 and one Has the front cover in the conveying direction of the outer mixing spiral (10), the outer mixing spiral (10) releasing the dry mix to the following vehicle (4), the tubular drum (8) of which is used to add water when the cover is open. 13. Vorrichtung nach einem der Ansprüche 5 bis 12, dadurch gekennzeichnet, daß der Mischtrommel mit der Anmachwasserzugabe ein Naßmischer (5) nachgeschaltet ist, der zur Zwischenspeicherung dient und einen Aufbau mit Kipprahmen (52) aufweist.13. Device according to one of claims 5 to 12, characterized in that the mixing drum with the mixing water addition is followed by a wet mixer (5) which is used for intermediate storage and has a structure with a tipping frame (52).
EP86111687A 1986-04-04 1986-08-23 Device for putting concrete charges in readiness in underground workings Expired - Lifetime EP0240594B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111687T ATE55720T1 (en) 1986-04-04 1986-08-23 DEVICE FOR THE PREPARATION OF CONCRETE BATCHES IN UNDERGROUND OPERATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611382 1986-04-04
DE19863611382 DE3611382A1 (en) 1986-04-04 1986-04-04 METHOD AND DEVICE FOR PROVIDING CONCRETE BATCHES IN UNDERGROUND OPERATION

Publications (2)

Publication Number Publication Date
EP0240594A1 true EP0240594A1 (en) 1987-10-14
EP0240594B1 EP0240594B1 (en) 1990-08-22

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EP86111687A Expired - Lifetime EP0240594B1 (en) 1986-04-04 1986-08-23 Device for putting concrete charges in readiness in underground workings

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EP (1) EP0240594B1 (en)
AT (1) ATE55720T1 (en)
DE (2) DE3611382A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009266A1 (en) * 1989-02-14 1990-08-23 Risto Minkkinen A distribution system for concrete
WO1991016497A1 (en) * 1990-04-20 1991-10-31 Minkkinen Risto J A system for spreading a wet mass
DE4244282A1 (en) * 1992-12-28 1994-07-07 Riker Rudolf Rail track mounted vehicle for delivery and mixing of concrete and mortar
WO1995009074A1 (en) * 1993-09-29 1995-04-06 Imk Ingenieurkontor Für Maschinenkonstruktion Gmbh Transporter-mixer for bulk-material/liquid mixtures
ES2176048A1 (en) * 1998-12-15 2002-11-16 Ferroberica S L Mobile fabricator of metalwork, includes a set of wheeled inter-linkable trailed work platforms for in situ fabrication
WO2008028307A1 (en) * 2006-09-08 2008-03-13 Rowa Tunnelling Logistics Ag Method and device for transporting concrete on rails
CN113513340A (en) * 2021-03-17 2021-10-19 临沂矿业集团有限责任公司 Ultra-long distance guniting system for underground coal mine and using method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4825590A (en) * 1989-01-16 1990-08-13 Risto Minkkinen A tank construction in a bulk cargo transportation system consisting of a lorry and trailer
AT409529B (en) * 1998-05-25 2002-09-25 Gapp Bernd METHOD AND DEVICE FOR STRENGTHENING THE SURFACE OF STOCKY SOIL
CN103075185A (en) * 2013-01-31 2013-05-01 陈为朋 Mine sprayed concrete tubular reversed loader

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US1894129A (en) * 1928-05-14 1933-01-10 Harry J Shaw Concrete delivery
DE815162C (en) * 1949-02-22 1951-11-29 Emil Schleif Transport device for dry goods, especially mixed building materials
US2703703A (en) * 1953-04-30 1955-03-08 Nargelovic John Concrete mixing system
US3282448A (en) * 1964-07-22 1966-11-01 Robert A Mcneil Method and apparatus for conveying construction material
US3567190A (en) * 1968-12-12 1971-03-02 Ray D Moran Drum car and coupling apparatus for carrying and feeding concrete in tunnels

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Publication number Priority date Publication date Assignee Title
US1894129A (en) * 1928-05-14 1933-01-10 Harry J Shaw Concrete delivery
DE815162C (en) * 1949-02-22 1951-11-29 Emil Schleif Transport device for dry goods, especially mixed building materials
US2703703A (en) * 1953-04-30 1955-03-08 Nargelovic John Concrete mixing system
US3282448A (en) * 1964-07-22 1966-11-01 Robert A Mcneil Method and apparatus for conveying construction material
US3567190A (en) * 1968-12-12 1971-03-02 Ray D Moran Drum car and coupling apparatus for carrying and feeding concrete in tunnels

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009266A1 (en) * 1989-02-14 1990-08-23 Risto Minkkinen A distribution system for concrete
WO1991016497A1 (en) * 1990-04-20 1991-10-31 Minkkinen Risto J A system for spreading a wet mass
DE4244282A1 (en) * 1992-12-28 1994-07-07 Riker Rudolf Rail track mounted vehicle for delivery and mixing of concrete and mortar
WO1995009074A1 (en) * 1993-09-29 1995-04-06 Imk Ingenieurkontor Für Maschinenkonstruktion Gmbh Transporter-mixer for bulk-material/liquid mixtures
US5683177A (en) * 1993-09-29 1997-11-04 Imk Ingenieurkontor Fuer Maschinenkonstruktion Gmbh Cylindrical high-capacity transport mixer for bulk material and liquids
ES2176048A1 (en) * 1998-12-15 2002-11-16 Ferroberica S L Mobile fabricator of metalwork, includes a set of wheeled inter-linkable trailed work platforms for in situ fabrication
WO2008028307A1 (en) * 2006-09-08 2008-03-13 Rowa Tunnelling Logistics Ag Method and device for transporting concrete on rails
CN113513340A (en) * 2021-03-17 2021-10-19 临沂矿业集团有限责任公司 Ultra-long distance guniting system for underground coal mine and using method

Also Published As

Publication number Publication date
ATE55720T1 (en) 1990-09-15
DE3673638D1 (en) 1990-09-27
DE3611382A1 (en) 1987-10-08
EP0240594B1 (en) 1990-08-22

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