EP0066000A1 - Extension unit for a ventilation tubing - Google Patents

Extension unit for a ventilation tubing Download PDF

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Publication number
EP0066000A1
EP0066000A1 EP81104189A EP81104189A EP0066000A1 EP 0066000 A1 EP0066000 A1 EP 0066000A1 EP 81104189 A EP81104189 A EP 81104189A EP 81104189 A EP81104189 A EP 81104189A EP 0066000 A1 EP0066000 A1 EP 0066000A1
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EP
European Patent Office
Prior art keywords
tubing
ventilation
tube
guide tube
storage
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.)
Withdrawn
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EP81104189A
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German (de)
French (fr)
Inventor
Angelika Müller
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Oldorid Kunststoff GmbH
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Oldorid Kunststoff GmbH
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Publication date
Application filed by Oldorid Kunststoff GmbH filed Critical Oldorid Kunststoff GmbH
Priority to EP81104189A priority Critical patent/EP0066000A1/en
Publication of EP0066000A1 publication Critical patent/EP0066000A1/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04—Air ducts

Definitions

  • the invention relates to a chute extension unit which has a transport container and a flexible storage chute which is shortened compared to its starting length by a plurality of transverse folds while narrowing its clear cross section, which cooperates with a guide tube which is accommodated in the narrowed chute cross section and supports the transverse folds, as well as one end of the storage flute is provided with a connecting flange for a pulling device which strips the other end of a flute tour to be extended over the guide tube, and at the opposite tube end has a spreading flange which slides on the inside of the flute and which seals the guide tube against the flute jacket.
  • extension units make it possible to dispense with adapters for the extension of lute tours, the end of which, for example, must best follow a tunnel or a section of the underground operation at a constant distance from the face. They enable a higher degree of rationalization in the construction of such special ventilation systems because they avoid the stoppage of the lute tour associated with the fitting and removal of adapters and the associated interruptions in the ventilation of the tunneling and the related dangers extend to periods that are longer and longer thus correspond to a longer tunneling length. With the extension unit according to the invention, you can work in such a way that the entire pre-built length of the tour is only made up of these extension units.
  • the invention is based on a ventilation extension unit in which such dangers are eliminated by using a transport container.
  • the storage duct is folded with the aim of accommodating the largest possible duct length in the smallest possible storage space.
  • a fold is particularly suitable for this purpose, in which polygons are produced from the Lutte in the fold planes and are offset from one another in neighboring planes.
  • the folded storage duct delivered in the transport container is prepared for installation by placing it on the guide tube.
  • This guide tube can be attached to the tapered end of one in the Luttentour attach the funnel to the other end of which the expansion flange is attached. In this way, the duct can be folded to save space and protected from damage by the transport container when it is folded, and can be prepared and used one after the other for installation.
  • the object of the invention is to simplify the transport containers and to design them in such a way that the stored tubes remain protected against damage until they are deployed in the tube tour.
  • the transport container consists of a tube housing, which in turn is composed of a cladding tube covering the folded storage tube and formed by a tube, the guide tube also realized with a tube, and its flanges, the connecting flange being the annular
  • the bottom of the housing forms and the expansion flange closes off on the inside an annular gap which is delimited from the outside by a cladding tube end, through which the storage end of the storage duct to be connected to the Luttentour exits.
  • the empty weight of the transport container is saved first. This is because it consists of the light air duct material, ie mostly of a fabric constructed from synthetic threads, which is coated on the inside and / or outside with a thermoplastic. Due to the flexibility of such pipes, the empty transport container can also be reduced to a small transport volume. In this way, the conditions are created for folding the storage duct in the manufacturing plant and inserting it into the respective transport container. Then the underground container only needs to be brought into the starting position for storing the air. Then the connection end of the storage flute, which can be easily removed through the annular gap, can be connected to the flute tour, and the unloading can be carried out in the usual way. The storage flue remains with its folded Length in the transport container until its inner end is pulled off over the guide tube. As a result, the cladding tube protects it from damage.
  • the invention has the advantage that it reduces the Statn losses to a small and inevitable extent, namely to the cases in which the transport container and the storage lute contained in it are damaged or otherwise lost.
  • the invention also has the advantage that it uses low-quality transport containers which also have a low transport weight and a small transport volume.
  • the pipes of the pipe housing are designed as spiral pipes, which are welded at their ends facing the housing base to a film forming the connecting flange.
  • Film can also be understood to mean the ventilation material described above.
  • This embodiment of the invention has the advantage that the parts can be easily welded to one another using the tried and tested method of plastics technology and all parts are flexible. On the other hand, the necessary stiffness in the cladding tube and in the guide tube can be easily achieved by the incorporated spirals.
  • the cladding tube is provided on the outside with suspension means.
  • suspension means can be previously known eyelets or brackets with which the transport container can be suspended from one or more trolleys of a monorail monorail when the storage channel is pulled out.
  • the duct extension unit according to the invention can in turn be designed such that the guide tube between the tube end and the expansion flange has a funnel consisting of a plastic film or the duct material.
  • This funnel which is known per se, serves, among other things. to avoid eddies during the transition of the weather flow from the Luttentour into the narrowed cross section of the Speicherlutte.
  • a blowing lute tour for example, which is generally designated by 3 and is only shown with its front end 4.
  • the lute tour consists of flexible lutes, each of which has a ring 5 made of round steel at its ends, which is incorporated into the lute jacket.
  • the pipes On the upper side, the pipes have a bar 6 with eyelets (not shown) which are spaced apart from one another and through which suspension cables 7 and 7 'can be pulled, that is, connected, with which the lute is suspended in a manner not shown in detail from the ridge 2 of the route 1.
  • trolleys 9 and 10 On the roof there is also a cantilevered rail 8 of a monorail overhead conveyor, of which, however, only two trolleys 9 and 10 designed as bottom flange sliders are shown schematically.
  • the trolleys 9 and 10 carry the lute extension unit, generally designated 11, which is explained in more detail below.
  • its basic structure consists of a transport container 12, which is designed as an upper housing, and a flexible storage duct 15, shortened by a plurality of transverse folds 14 by narrowing its clear cross section, which is shown schematically in the transport unit 11 Structure according to the Lutten, which are already installed in Luttentour 3.
  • the storage flute 15 has at both ends a round steel ring 16 or 16 'surrounded by the flute material, with which it can be coupled to the round steel ring 5 of the end 4 with the flute tour 3 via a band 17, as shown in FIG.
  • This band 17 in turn has a fixed ring 18 and 19 on its inside, and these two rings include rings 5 and 16 when the band is closed. In this way, a tensile coupling is created.
  • the tube housing 12 of the transport unit consists, on the one hand, of an enveloping tube 20 consisting of a spiral tube corresponding film 23 are covered, the. Foil is welded with its edges to the outside of the Luttenmantels 21.
  • the tube housing 12 consists of a guide tube 24 which is also realized with a spiral flute, the structure of which corresponds to the structure of the cladding tube 21, which differs from the guide tube only in its comparatively larger diameter.
  • the two tubes 20 and 24 are arranged concentrically and provided with a connecting flange forming the housing base 25 at one of their ends.
  • this connecting flange is an annular disk made of pipe material, that is to say in turn flexible and welded to the ends of the concentric tubes 20, 24 by means of an inner and an outer fillet seam 26 and 27, respectively.
  • An annular space 28 is thereby formed, in which the folded duct can be accommodated.
  • the cladding tube 20 is somewhat longer than the guide tube 24, but forms with its other end shown at 29 the outer boundary of an annular gap 30 which is delimited on the inside by an expansion flange generally designated 31 (FIG. 2).
  • This expansion flange in turn consists of an annular disk 32 made of Lutten material and on the other hand from a coupling ring 33, which corresponds to the coupling rings described so far, but has a slightly smaller diameter than this.
  • the storage duct 15 is folded and inserted into the tube housing 12 forming the transport container. This can be done mechanically and therefore, despite the flexibility of the transport container 12, does not pose any difficulties. Since the diameter of the coupling ring 33 is smaller than the diameter of the coupling ring 16, the connection end of the stored can Place the tube completely in the transport container, leaving only the annular gap 30 free. In this state, the air extension unit 11 can be transported safely in any way.
  • the transport unit with the stored duct is suspended on the two trolleys 9 and 10 of the monorail overhead conveyor with the help of eyelets 34, 35 which are fastened to the cladding tube 20.
  • the coupling ring 36 attached to the connecting flange 25 the entire transport unit 11 is coupled with a pipe, not shown, which is attached to a tunneling machine and e.g. belongs to a nozzle from which the ventilation air exits, which is blown in the Luttentour 3.
  • the end of the storage chute carrying the ring 16 is removed through the annular gap 30 by pulling out part of the storage chute.
  • the coupling ring 33 which is covered by the material of the guide tube, slides on the inner surface 37 of the storage duct and clamps it onto the end cross section in the duct tour 3. This takes place against a corresponding resistance with which the lute sleeves slide on one another and has the result that their plastic coatings seal against one another.
  • the result of this is that the inside of the transport unit 11 in the transport unit is relieved of the overpressure of the lumen tour 3 and only the guide tube is loaded with the overpressure of the weather current.
  • the annular disk 32 When pulling out the storage tube end associated with the coupling ring 26, the annular disk 32 is also deformed axially and forms a funnel jacket, as can be seen from FIGS. 1 and 2.
  • This funnel shape improves the flow conditions in the area of the expansion flange of the transport unit 11, so that there are fewer vortex and flow resistances.
  • such resistances are also relatively insignificant, because the storage unit 11 is axially short due to the tight folding of the storage duct and therefore the weather flow only has to pass a short pipe length until it emerges.
  • the advance machine also moves in the direction of the arrow 38 in FIG. 2 and takes the storage unit 11 along with it via the flange 25 and its ring 36.
  • the storage flute is pulled out of the annular space 28 until its inner end provided with a coupling ring 16 'finally passes through the flange 31 and the ring 33, whereupon a new storage unit 11 is installed.
  • the tubes of the storage unit are stiffened with external spirals. This results in smooth inner walls, which are expedient both for fluidic reasons and for reasons of easier storage of the duct.

Abstract

The extension unit 11 has a transport container 12 and a flexible stored ventilation tubing 15 which is shortened with regard to its outlet rings by a multiplicity of transverse folds 14, with its clear cross-section being restricted, and interacts with a guide tube 24 which is accommodated in the restricted tubing cross-section and supports the transverse folds 14 and is also provided at one end of the stored ventilation tubing 15 with a connecting flange 25 for a pulling device which pulls off the stored ventilation tubing 15, attached with its other end 16 to a ventilation-tubing system 3 to be extended, via the guide tube 24 and has at the opposite tube end a spreading flange 31 which slides on the inside 37 of the ventilation tubing and seals off the guide tube 24 from the ventilation-tubing shell, in which arrangement provision is made, with the object of simplifying the transport container 11 and constructing it in such a way that the stored ventilation tubing 15 remains protected from damage before it is fitted into the ventilation-tubing system 3, for the transport container 11 to consist of a tubular housing 12 which in turn is composed of an encasing tube 20, covering the folded stored ventilation tubing 15 and formed by a ventilation tubing, and of the guide tube 24, likewise realised with a ventilation tubing, and its flanges 25, 31, in which arrangement the connecting flange 25 forms the annular housing base and the spreading flange 31 closes off an annular gap 30 which is limited to the outside by an encasing-tubing end 29 and through which the stored ventilation-tubing end to be connected to the ventilation-tubing system 3 emerges. <IMAGE>

Description

Die Erfindung betrifft eine Luttenverlängerungseinheit, welche einen Transportbehälter und eine gegenüber ihrer Ausgangslänge durch eine Mehrzahl von Querfalten unter Verengung ihres lichten Querschnittes verkürzte, flexible Speicherlutte aufweist, die mit einem Führungsrohr zusammenwirkt, das in dem verengten Luttenquerschnitt untergebracht ist und die Querfalten unterstützt, sowie an einem Ende der.Speicherlutte mit einem Anschlußflansch für eine die mit ihrem anderen Ende an eine zu verlängende Luttentour angeschlossene Speicherlutte über das Führungsrohr abstreifende Zugvorrichtung versehen ist, und am gegenüberliegenden Rohrende einen auf der Lutteninnenseite gleitenden Spreizflansch aufweist, der das Führungsrohr gegen den Luttenmantel abdichtet.The invention relates to a chute extension unit which has a transport container and a flexible storage chute which is shortened compared to its starting length by a plurality of transverse folds while narrowing its clear cross section, which cooperates with a guide tube which is accommodated in the narrowed chute cross section and supports the transverse folds, as well as one end of the storage flute is provided with a connecting flange for a pulling device which strips the other end of a flute tour to be extended over the guide tube, and at the opposite tube end has a spreading flange which slides on the inside of the flute and which seals the guide tube against the flute jacket.

Solche Verlängerungseinheiten ermöglichen es, bei der Verlängerung von Luttentouren, deren Ende beispielsweise einem Vortrieb eines Tunnels oder einer Strecke des Untertagebetriebes am besten in einem konstanten Abstand von der Ortsbrust folgen muß, auf Paßstücke zu verzichten. Sie ermöglichen einen höheren Rationalisierungsgrad beim Bau derartiger Sonderbewetterungsanlagen, weil sie das mit im Ein- und Ausbau von Paßstücken verbundene Stillsetzen der Luttentour vermeiden und die damit verbundenen Unterbrechungen der Bewetterung des Vortriebes sowie die ihrerseits damit zusammenhängenden Gefahren auf Zeiträume verlängern, die einer größeren Luttenlänge und damit einer größeren Vortriebslänge entsprechen. Mit der erfindunsgemäßen Verlängerungseinheit kann man so arbeiten, daß die gesamte vorgebaute Luttentourlänge nur aus diesen Verlängerungseinheiten aufgebaut wird.Such extension units make it possible to dispense with adapters for the extension of lute tours, the end of which, for example, must best follow a tunnel or a section of the underground operation at a constant distance from the face. They enable a higher degree of rationalization in the construction of such special ventilation systems because they avoid the stoppage of the lute tour associated with the fitting and removal of adapters and the associated interruptions in the ventilation of the tunneling and the related dangers extend to periods that are longer and longer thus correspond to a longer tunneling length. With the extension unit according to the invention, you can work in such a way that the entire pre-built length of the tour is only made up of these extension units.

Dazu ist es bereits bekannt, die jeweils vorzubauende Lutte einer Luttentour an Ort und Stelle zu speichern, indem man sie dort faltet, d.h. einspeichert und entsprechend dem Fortschritt des Vortriebes z.B. mit einer die Zugvorrichtung bildende Vortriebsmaschine auszieht, d.h. entspeichert. Solche Verlängerungseinheiten sind relativ kostpielig, weil die unter Tage zu leistende Arbeit teurer und weniger effektiv als die in einer Fabrik ist. Außerdem müssen die Lutten als solche transportiert werden. Da man aus Rationalisierungsgründen auch bei. gespeicherten Lutten möglichst große Längen verlangen muß, ergeben sich in der Praxis erhebliche Transportprobleme. Einerseits sind derart lange flexible Lutten schwer zusammenzuhalten, andererseits unterliegen sie deshalb auch der Gefahr, leicht beschädigt zu werden. Insbesondere treten Perforationen des Luttenmantels auf, die die betreffende Lutte für den Einbau in eine Luttentour moderner Auslegung unbrauchbar machen.For this purpose, it is already known to store the lute to be built in advance on a lute tour by folding it there, i.e. saved and according to the progress of the tunneling e.g. pulls out with a jacking machine forming the pulling device, i.e. saved. Such extension units are relatively expensive because the underground work is more expensive and less effective than that in a factory. In addition, the pipes must be transported as such. Since for reasons of rationalization also. stored pipes must be as long as possible, there are considerable transport problems in practice. On the one hand, flexible ducts of this length are difficult to hold together, on the other hand, they are therefore also at risk of being easily damaged. In particular, perforations of the lute jacket occur, which make the lute in question unusable for installation in a lute tour of modern design.

Die Erfindung geht aus von einer Luttenverlängerungseinheit, bei der solche Gefahren durch die Verwendung eines Transportbehälters ausgeschaltet sind. Die Speicherlutte ist dabei mit dem Ziel gefaltet, eine möglich große Luttenlänge auf möglichst geringem Speicherraum unterzubringen. Dazu eignet sich insbesondere eine Faltung, bei der in den Faltungsebenen aus der Lutte Vielecke hergestellt werden, die in benachbarten Ebenen gegeneinander versetzt sind. Bei der vorbekannten Luttenverlängerungseinheit wird die in dem Transportbehälter angelieferte, gefaltete Speicherlutte für den Einbau vorbereitet, indem man sie auf das Führungsrohr aufsetzt. Dieses Führungsrohr läßt sich an das verjüngte Ende eines in der Luttentour steckenden Trichters anpflanschen an dessen anderem Ende der Spreizflansch befestigt ist. Auf diese Weise kann man die Lutte in gefaltetem Zustand raumsparend und durch die Transportbehälter gegen Beschädigungen geschützt bis zur Einbaustelle schaffen und nacheinander für den Einbau vorbereiten und einsetzen.The invention is based on a ventilation extension unit in which such dangers are eliminated by using a transport container. The storage duct is folded with the aim of accommodating the largest possible duct length in the smallest possible storage space. A fold is particularly suitable for this purpose, in which polygons are produced from the Lutte in the fold planes and are offset from one another in neighboring planes. In the case of the known duct extension unit, the folded storage duct delivered in the transport container is prepared for installation by placing it on the guide tube. This guide tube can be attached to the tapered end of one in the Luttentour attach the funnel to the other end of which the expansion flange is attached. In this way, the duct can be folded to save space and protected from damage by the transport container when it is folded, and can be prepared and used one after the other for installation.

Nachteilig wirkt sich jedoch aus, daß die gefalteten Speicherlutten aus ihren Transportbehältern herausgenommen werden müssen, wenn sie auf ihren Einbau vorbereitet werden. Das kostet nicht nur Zeit und Arbeit, sondern ist auch mit der Gefahr verbunden, daß die Lutten aus ihrem gefalteten Zustand auseinanderfallen. Insbesondere wenn es sich im Interesse einer starken Verkürzung der Speicherlutte mit dem Ziel der raumsparenden Anordnung großer Luttenlängen in kurzen Transportbehältern um komplizierte Faltungsarten handelt, kann eine einmal ganz oder auch nur teilweise entfaltete Lutte nicht wieder in ihren gefalteten Ausgangszustand zurückversetzt werden und läßt sich dann nicht einbauen. Die Transportbehälter vermeiden daher im Ergebnis nicht die bislang schon aufgetretenen Luttenverluste. Außerdem sind die meisten Transportbehälter insbesondere bei den leistungsfähigen Sonderbewetterungsanlagen benötigten großen Durchmessern schwere und sperrige Gefäße, die auch im Leerzustand erhebliche Transportgewichte darstellen und viel Transportraum beanspruchen.However, it has the disadvantage that the folded storage ducts must be removed from their transport containers when they are being prepared for their installation. This not only costs time and work, but is also associated with the risk that the pipes will fall apart from their folded state. Especially if it is in the interest of a strong shortening of the storage chute with the goal of space-saving arrangement of large chute lengths in short transport containers that are complicated types of folding, a chute that has been fully or only partially unfolded cannot be returned to its folded initial state and then cannot be install. As a result, the transport containers therefore do not avoid the loss of air that has already occurred. In addition, most of the transport containers, especially those with the large special powerful ventilation systems, require heavy and bulky containers that represent considerable transport weights even when empty and take up a lot of transport space.

Bei der vorbekannten Luttenverlängerungseinheit werden übermäßige Beanspruchungen der Speicherlutte von der Vorbereitung bis zur Entspeicherung in der Luttenlour nicht ausgeschlossen. Das ist insbesondere bis zum Aufhängen der Speicherlutte, aber auch danach bis zu ihrer vollständigen Entfaltung mit der Gefahr von Beschädigungen verbunden, die weitere Luttenverluste verursachen können. Der Erfindung liegt die Aufgabe zugrunde, die Transportbehälter zu vereinfachen und so auszubilden, daß die gespeicherten Lutten bis zu ihrer Entfaltung in der Luttentour gegen Beschädigungen geschützt bleiben.In the case of the previously known lute extension unit, excessive stresses on the lute from preparation to storage in the lute lour are not excluded. This is associated in particular with the risk of damage, which can cause further loss of ventilation, up to the point when the storage ventilation is hung up, but also after it has been fully deployed. The object of the invention is to simplify the transport containers and to design them in such a way that the stored tubes remain protected against damage until they are deployed in the tube tour.

Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß der Transportbehälter aus einem Rohrgehäuse besteht, das seinerseits aus einem die gefaltete Speicherlutte abdeckenden und von einer Lutte gebildeten Hüllrohr, dem ebenfalls mit einer Lutte verwirklichten Führungsrohr und seinen Flanschen zusammengesetzt ist, wobei der Anschlußflansch den ringförmigen Gehäuseboden bildet und der Spreizflansch einen von einem Hüllrohrende nach außen begrenzten Ringspalt innen abschließt, durch den das an die Luttentour anzuschließende Speicherluttenende austritt.According to the invention, this object is achieved in that the transport container consists of a tube housing, which in turn is composed of a cladding tube covering the folded storage tube and formed by a tube, the guide tube also realized with a tube, and its flanges, the connecting flange being the annular The bottom of the housing forms and the expansion flange closes off on the inside an annular gap which is delimited from the outside by a cladding tube end, through which the storage end of the storage duct to be connected to the Luttentour exits.

Bei einer solchen Luttenverlängerungseinheit wird zunächst an Leergewicht des Transportbehälters gespart. Denn dieser besteht aus dem leichten Luttenwerkstoff, d.h. zumeist aus einem aus synthetischen Fäden aufgebauten Gewebe, das innen und/oder außen mit einem Thermoplast beschichtet ist. Infolge der Flexibilität solcher Lutten kann der leere Transportbehälter auch auf ein geringes Transportvolumen gebracht werden. Auf diese Weise werden die Voraussetzungen dafür geschaffen, die Speicherlutte im Herstellerwerk zu falten und in den jeweiligen Transportbehälter einzubringen. Dann braucht unter Tage der Transportbehälter nur noch in die Ausgangsstellung für das Entspeichern der Lutte gebracht zu werden. Dann läßt sich das durch den Ringspalt leicht entnehmbare Anschlußende der Speicherlutte an die Luttentour anschließen, und die Entspeicherung kann in üblicher Weise erfolgen. Hierbei bleibt die Speicherlutte mit ihrer jeweils gefalteten Länge im Transportbehälter, bis ihr inneres Ende über das Führungsrohr abgezogen ist. Infolgedessen wird sie durch das Hüllrohr gegen Beschädigungen geschützt.With such a ventilation extension unit, the empty weight of the transport container is saved first. This is because it consists of the light air duct material, ie mostly of a fabric constructed from synthetic threads, which is coated on the inside and / or outside with a thermoplastic. Due to the flexibility of such pipes, the empty transport container can also be reduced to a small transport volume. In this way, the conditions are created for folding the storage duct in the manufacturing plant and inserting it into the respective transport container. Then the underground container only needs to be brought into the starting position for storing the air. Then the connection end of the storage flute, which can be easily removed through the annular gap, can be connected to the flute tour, and the unloading can be carried out in the usual way. The storage flue remains with its folded Length in the transport container until its inner end is pulled off over the guide tube. As a result, the cladding tube protects it from damage.

Die Erfindung hat den Vorteil, daß sie die Luttenver- I luste auf ein geringes und unvermeidliches Maß reduziert, nämlich auf die Fälle, in denen der Transportbehälter und die in ihm enthaltene Speicherlutte beschädigt werden oder auf andere Weise verloren gehen. Die Erfindung hat ferner den Vorteil, daß sie geringwertige Transportbehälter benutzt, die außerdem ein niedriges Transportgewicht und ein geringes Transportvolumen aufweisen.The invention has the advantage that it reduces the lutten losses to a small and inevitable extent, namely to the cases in which the transport container and the storage lute contained in it are damaged or otherwise lost. The invention also has the advantage that it uses low-quality transport containers which also have a low transport weight and a small transport volume.

Vorzugsweise und gemäß einem weiteren Merkmal der Erfindung sind die Lutten des Rohrgehäuses als Spirallutten ausgeführt, die an ihren dem Gehäuseboden zugekehrten Enden mit einer den Anschlußflansch bildenden Folie verschweißt sind. Unter Folie kann auch der oben beschriebene Luttenwerkstoff verstanden werden.Preferably, and according to a further feature of the invention, the pipes of the pipe housing are designed as spiral pipes, which are welded at their ends facing the housing base to a film forming the connecting flange. Film can also be understood to mean the ventilation material described above.

Bei dieser Ausführungsform der Erfindung ergibt sich der Vorteil, daß man die Teile leicht nach erprobtem Verfahren der Kunststofftechnik miteinander verschweißen kann und alle Teile flexibel sind. Andererseits sind durch die eingearbeiteten Spiralen die erforderlichen Steifigkeiten im Hüllrohr und im Führungsrohr leicht zu erzielen.This embodiment of the invention has the advantage that the parts can be easily welded to one another using the tried and tested method of plastics technology and all parts are flexible. On the other hand, the necessary stiffness in the cladding tube and in the guide tube can be easily achieved by the incorporated spirals.

Gemäß einem weiteren Merkmal der Erfindung ist das Hüllrohr außen mit Aufhängemitteln versehen. Dabei kann es sich um vorbekannte Oesen oder Bügel handeln, mit denen der Transportbehälter an eine oder mehrere Laufkatzen einer Einschienenhängebahn aufgehängt werden kann, wenn die Speicherlutte ausgezogen wird.According to a further feature of the invention, the cladding tube is provided on the outside with suspension means. These can be previously known eyelets or brackets with which the transport container can be suspended from one or more trolleys of a monorail monorail when the storage channel is pulled out.

Die erfindungsgemäße Luttenverlängerungseinheit läßt sich ihrerseits so ausführen, daß das Führungsrohr zwischen dem Rohrende und dem Spreizflansch einen aus einer Kunststoffolie bzw. dem Luttenwerkstoff bestehenden Trichter aufweist. Dieser an sich bekannte Trichter dient u.a. dazu, Wirbel beim Übergang des Wetterstromes aus der Luttentour in den verengten Querschnitt der Speicherlutte zu vermeiden.The duct extension unit according to the invention can in turn be designed such that the guide tube between the tube end and the expansion flange has a funnel consisting of a plastic film or the duct material. This funnel, which is known per se, serves, among other things. to avoid eddies during the transition of the weather flow from the Luttentour into the narrowed cross section of the Speicherlutte.

Die Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer Ausführungsform anhand der Figuren in der Zeichnung; es zeigen

  • Figur 1 eine Luttenverlängerungseinheit gemäß der Erfindung kurz vor ihrem Anschluß an eine Luttentour, wobei die Lutten im Längsschnitt wiedergegeben sind und
  • Figur 2 die eingebaute Verlängerungseinheit nach teilweiser Entspeicherung der Lutte.
The details of the invention result from the following description of an embodiment with reference to the figures in the drawing; show it
  • 1 shows a lute extension unit according to the invention shortly before it is connected to a lute tour, the lutes being shown in longitudinal section and
  • Figure 2 shows the built-in extension unit after partial storage of the lute.

In einer Strecke 1 des Untertagebetriebes, z.B. einem Tunnelvortrieb, dessen Firste mit 2 bezeichnet ist, befindet sich eine Sonderbewetterung aus einer beispielsweise blasenden Luttentour, die allgemein mit 3 bezeichnet und lediglich mit ihrem vorderen Ende 4 dargestellt ist. Die Luttentour besteht aus flexiblen Lutten, die jeweils an ihren Enden einen aus Rundstahl bestehenden Ring 5 aufweisen, der in den Luttenmantel eingearbeitet ist. Auf der Oberseite weisen die Lutten eine Leiste 6 mit nicht dargestellten im Abstand voneinander angebrachten Oesen auf, durch die sich Aufhängeseile 7 bzw. 7' ziehen, d.h. anschließen lassen, mit denen die Lutte in im einzelnen nicht dargestellter Weise an der Firste 2 der Strecke 1 aufgehängt ist.In a section 1 of the underground operation, for example a tunnel boring, the roof of which is designated by 2, there is special ventilation from a blowing lute tour, for example, which is generally designated by 3 and is only shown with its front end 4. The lute tour consists of flexible lutes, each of which has a ring 5 made of round steel at its ends, which is incorporated into the lute jacket. On the upper side, the pipes have a bar 6 with eyelets (not shown) which are spaced apart from one another and through which suspension cables 7 and 7 'can be pulled, that is, connected, with which the lute is suspended in a manner not shown in detail from the ridge 2 of the route 1.

An der Firste befindet sich außerdem eine fliegend gelagerte Schiene 8 einer Einschinenhängebahn, von der jedoch lediglich schematisch zwei als Unterflanschläufer ausgebildete Laufkatzen 9 bzw. 10 dargestellt sind. Die Laufkatzen 9 bzw. 10 tragen die allgemein mit 11 bezeichnete Luttenverlängerungseinheit, die im folgenden näher erläutert wird.On the roof there is also a cantilevered rail 8 of a monorail overhead conveyor, of which, however, only two trolleys 9 and 10 designed as bottom flange sliders are shown schematically. The trolleys 9 and 10 carry the lute extension unit, generally designated 11, which is explained in more detail below.

Gemäß der dargestellten Ausführungsform besteht sie ihrem grundsätzlichen Aufbau nach aus einem Transportbehälter 12, der als Obergehäuse ausgebildet ist und einer durch eine Mehrzahl von Querfalten 14 unter Verengung ihres lichten Querschnittes verkürzten, flexiblen Speicherlutte 15, die zwar in der Transporteinheit 11 schematisch wiedergegeben ist, ihrem Aufbau nach aber den Lutten entspricht, die in der Luttentour 3 bereits eingebaut sind. Demgemäß hat auch die Speicherlutte 15 an beiden Enden je einen von dem Luttenwerkstoff umgebenen Rundstahlring 16 bzw. 16', mit dem sie sich über ein Band 17 mit dem Rundstahlring 5 des Endes 4 mit der Luttentour 3 kuppeln läßt, wie Figur 2 zeigt. Dieses Band 17 hat nämlich seinerseits auf seiner Innenseite je einen festen Ring 18 bzw. 19, und diese beiden Ringe schließen die Ringe 5 und 16 ein, wenn das Band geschlossen ist. Auf diese Weise entsteht eine zugfeste Kupplung.According to the embodiment shown, its basic structure consists of a transport container 12, which is designed as an upper housing, and a flexible storage duct 15, shortened by a plurality of transverse folds 14 by narrowing its clear cross section, which is shown schematically in the transport unit 11 Structure according to the Lutten, which are already installed in Luttentour 3. Accordingly, the storage flute 15 has at both ends a round steel ring 16 or 16 'surrounded by the flute material, with which it can be coupled to the round steel ring 5 of the end 4 with the flute tour 3 via a band 17, as shown in FIG. This band 17 in turn has a fixed ring 18 and 19 on its inside, and these two rings include rings 5 and 16 when the band is closed. In this way, a tensile coupling is created.

Das Rohrgehäuse 12 der Transporteinheit besteht einerseits aus einem aus einer Spirallutte bestehenden Hüllrohr 20. Auf dem eigentlichen Luttenmantel 21 befindet sich eine Drahtspirale 22, deren Windungen mit einer Folie, gegebenenfalls einer dem Luttenwerkstoff entsprechenden Folie 23 abgedeckt sind, wobei die . Folie mit ihren Rändern auf die Außenseite des Luttenmantels 21 aufgeschweißt ist. Andererseits besteht das Rohrgehäuse 12 aus einem ebenfalls mit einer Spirallutte verwirklichten Führungsrohr 24, dessen Aufbau dem Aufbau des Hüllrohres 21 entspricht, das sich von dem Führungsrohr nur durch seinen vergleichsweise größeren Durchmesser unterscheidet. Die beiden Rohre 20 und 24 sind konzentrisch angeordnet und mit an jeweils einem ihrer Enden den Gehäuseboden 25 bildenden Anschlußflansch versehen. Gemäß dem Ausführungsbeispiel ist dieser Anschlußflansch eine ringförmige Scheibe aus Luttenwerkstoff, also seinerseits flexibel und mit Hilfe je einer Innen- und einer Außenkehlnaht 26 bzw. 27 mit den Enden der konzentrischen Rohre 20, 24 verschweißt. Dadurch wird ein Ringraum 28 gebildet, in dem sich die gefaltete Lutte unterbringen läßt.The tube housing 12 of the transport unit consists, on the one hand, of an enveloping tube 20 consisting of a spiral tube corresponding film 23 are covered, the. Foil is welded with its edges to the outside of the Luttenmantels 21. On the other hand, the tube housing 12 consists of a guide tube 24 which is also realized with a spiral flute, the structure of which corresponds to the structure of the cladding tube 21, which differs from the guide tube only in its comparatively larger diameter. The two tubes 20 and 24 are arranged concentrically and provided with a connecting flange forming the housing base 25 at one of their ends. According to the exemplary embodiment, this connecting flange is an annular disk made of pipe material, that is to say in turn flexible and welded to the ends of the concentric tubes 20, 24 by means of an inner and an outer fillet seam 26 and 27, respectively. An annular space 28 is thereby formed, in which the folded duct can be accommodated.

Das Hüllrohr 20 ist etwas länger als das Führungsrohr 24, bildet aber mit seinem bei 29 dargestellten anderen Ende die äußere Begrenzung eines Ringspaltes 30, der innen von einem allgemein mit 31 bzeichneten Spreizflansch begrenzt wird (Figur 2). Dieser Spreizflansch besteht seinerseits aus einer Ringscheibe 32 aus Luttenwerkstoff und andererseits aus einem Kupplungsring 33, der den bisher beschriebenen Kupplungsringen entspricht, jedoch einen etwas geringeren Durchmesser als diese aufweist.The cladding tube 20 is somewhat longer than the guide tube 24, but forms with its other end shown at 29 the outer boundary of an annular gap 30 which is delimited on the inside by an expansion flange generally designated 31 (FIG. 2). This expansion flange in turn consists of an annular disk 32 made of Lutten material and on the other hand from a coupling ring 33, which corresponds to the coupling rings described so far, but has a slightly smaller diameter than this.

Zweckmäßig im Herstellerwerk wird die Speicherlutte 15 gefaltet und in das den Transportbehälter bildende Rohrgehäuse 12 eingebracht. Das kann maschinell erfolgen und macht daher trotz der Flexibilität des Transportbehälters 12 keine Schwierigkeiten. Da der Durchmesser des Kupplungsringes 33 kleiner als der Durchmesser des Kupplungsringes 16 ist, läßt sich das Anschlußende der eingespeicherten Lutte vollständig im Transportbehälter unterbringen, wobei lediglich der Ringspalt 30 freibleibt. In diesem Zustand kann die Luttenverlängerungseinheit 11 über beliebige Wege gefahrlos transportiert werden.Appropriately in the manufacturing plant, the storage duct 15 is folded and inserted into the tube housing 12 forming the transport container. This can be done mechanically and therefore, despite the flexibility of the transport container 12, does not pose any difficulties. Since the diameter of the coupling ring 33 is smaller than the diameter of the coupling ring 16, the connection end of the stored can Place the tube completely in the transport container, leaving only the annular gap 30 free. In this state, the air extension unit 11 can be transported safely in any way.

An Ort und Stelle angekommen wird die Transporteinheit mit der eingespeicherten Lutte, wie aus Figur 2 ersicht- lich, an den beiden Laufkatzen-9 und 10 der Einschienenhängebahn mit Hilfe von Oesen 34, 35 aufgehängt, welche an dem Hüllrohr 20 befestigt sind. Danach kuppelt man mit dem am Anschlußflansch 25 angebrachten Kupplungsring 36 die ganze Transporteinheit 11 mit einem nicht dargestellten Rohr, das auf einer Vortriebsmaschine angebracht ist und z.B. zu einer Düse gehört, aus der die Bewetterungsluft austritt, die in der Luttentour 3 blasend gefördert wird. Hierauf schließt man den Kupplungsring 16 mit dem Kupplungsring 5 durch das Band 17 zusammen. Dazu entnimmt man das den Ring 16 tragende Ende der Speicherlutte durch den Ringspalt 30, indem man einen Teil der Speicherlutte auszieht. Hierbei gleitet der von dem Werkstoff des Führungsrohres umkleidete Kupplungsring 33 auf der Innenfläche 37 der Speicherlutte und spannt diese auf den Endquerschnitt in der Luttentour 3 auf. Das erfolgt gegen einen entsprechenden Widerstand, mit dem die Luttenmäntel aufeinander gleiten und hat zur Folge, daß derenKunststoffbeschichtungen gegeneinander abdichten. Das hat zur Folge, daß die Speicherlutte in der Transporteinheit 11 innen vom Überdruck der Luttentour 3 entlastet ist und nur das Führungsrohr mit dem Überdruck des Wetterstromes belastet wird.Once in place, the transport unit with the stored duct, as can be seen in FIG. 2, is suspended on the two trolleys 9 and 10 of the monorail overhead conveyor with the help of eyelets 34, 35 which are fastened to the cladding tube 20. Then, with the coupling ring 36 attached to the connecting flange 25, the entire transport unit 11 is coupled with a pipe, not shown, which is attached to a tunneling machine and e.g. belongs to a nozzle from which the ventilation air exits, which is blown in the Luttentour 3. Then you close the coupling ring 16 with the coupling ring 5 through the band 17. For this purpose, the end of the storage chute carrying the ring 16 is removed through the annular gap 30 by pulling out part of the storage chute. Here, the coupling ring 33, which is covered by the material of the guide tube, slides on the inner surface 37 of the storage duct and clamps it onto the end cross section in the duct tour 3. This takes place against a corresponding resistance with which the lute sleeves slide on one another and has the result that their plastic coatings seal against one another. The result of this is that the inside of the transport unit 11 in the transport unit is relieved of the overpressure of the lumen tour 3 and only the guide tube is loaded with the overpressure of the weather current.

Beim Ausziehen des dem Kupplungsring 26 zugeordneten Speicherluttenendes wird außerdem die Ringscheibe 32 axial verformt und bildet einen Trichtermantel, wie aus den Figuren 1 und 2 ersichtlich ist. Diese Trich ter form verbessert die Strömungsverhältnisse im Bereich des Spreizflansches der Transporteinheit 11, so daß dort weniger Wirbel- und Strömungswiederstände entstehen. Andererseits sind solche Widerstände auch relativ unerheblich, weil die Speichereinheit 11 infolge der engen Faltung der Speicherlutte axial kurz ausfällt und daher der Wetterstrom bis zum Austritt nur noch eine kurze Rohrlänge zu passieren hat.When pulling out the storage tube end associated with the coupling ring 26, the annular disk 32 is also deformed axially and forms a funnel jacket, as can be seen from FIGS. 1 and 2. This funnel shape improves the flow conditions in the area of the expansion flange of the transport unit 11, so that there are fewer vortex and flow resistances. On the other hand, such resistances are also relatively insignificant, because the storage unit 11 is axially short due to the tight folding of the storage duct and therefore the weather flow only has to pass a short pipe length until it emerges.

Im Zuge des Vortriebes bewegt sich auch die Vortriebsmaschine in Richtung des Pfeiles 38 der Figur 2 und nimmt über den Flansch 25 und dessen Ring 36 die Speichereinheit 11 mit. Hierbei wird die Speicherlutte aus dem Ringraum 28 herausgezogen, bis ihr inneres mit einem Kupplungsring 16' versehenes Ende schließlich den Flansch 31 und den Ring 33 passiert, worauf eine neue Speichereinheit 11 eingebaut wird.In the course of the advance, the advance machine also moves in the direction of the arrow 38 in FIG. 2 and takes the storage unit 11 along with it via the flange 25 and its ring 36. Here, the storage flute is pulled out of the annular space 28 until its inner end provided with a coupling ring 16 'finally passes through the flange 31 and the ring 33, whereupon a new storage unit 11 is installed.

Gemäß dem Ausführungsbeispiel sind die Rohre der Speichereinheit mit Außenspiralen versteift. Dadurch ergeben sich glatte Innenwände, die sowohl aus strömungstechnischen wie aus Gründen der leichteren Speicherbarkeit der Lutte zweckmäßig sind.According to the exemplary embodiment, the tubes of the storage unit are stiffened with external spirals. This results in smooth inner walls, which are expedient both for fluidic reasons and for reasons of easier storage of the duct.

Claims (3)

1.) Luttenverlängerungseinheit, welche einen Transportbehälter und eine gegenüber ihrer Ausgangslänge durc eine Mehrzahl von Querfalten unter Verengung ihres lichten Querschnittes verkürzte, flexible Speicherlutte aufweist, die mit einem Führungsrohr zusammenwirkt, das in dem verengten Luttenquerschnitt untergebracht ist und die Querfalten unterstützt, sowie an einem Ende der Speicherlutte mit einem Anschlußflansch für eine die mit ihrem anderen Ende an eine zu verlängernde Luttentour angeschlossene Speicherlutte über das Führungsrohr abstreifende Zugvorrichtung versehen ist und am gegenüberliegenden Rohrende einen auf der Lutteninnenseite gleitenden Spreizflansch aufweist, der das Führungsrohr gegen den Luttenmantel abdichtet,
dadurch gekennzeichnet, daß der Transportbehälter (11) aus einem Rohrgehäuse (12) besteht, das seinerseits aus einem die gefaltete Speicherlutte (15) abdeckenden und von einer Lutte gebildeten Hüllrohr (20), aus dem ebenfalls mit einer Lutte verwirklichten Führungsrohr (24) und seinen Flanschen (25, 31) zusammengesetzt ist, wobei der Anschlußflansch (25) den ringförmigen Gehäuseboden bildet und der Spreizflansch (31) einen von einem Hüllrohrende (29) nach außen begrenzten Ringspalt (30) abschließt, durch den das an die Luttentour (3) anzuschließende Speicherluttenende austritt.1.) Lute extension unit, which has a transport container and a flexible storage lute that is shortened compared to its initial length by a plurality of transverse folds, narrowing its clear cross section, which cooperates with a guide tube, which is accommodated in the narrowed cross section and supports the transverse folds, and on one The end of the storage chute is provided with a connecting flange for a traction device which stripes over the guide tube with its other end connected to a chute tour to be extended and has an expansion flange on the inside of the chute that seals the guide tube against the chute casing,
characterized in that the transport container (11) consists of a tubular housing (12) which in turn consists of a cladding tube (20) which covers the folded storage tube (15) and is formed by a tube, from which the guide tube (24) and which is also realized with a tube its flanges (25, 31) is assembled, the connecting flange (25) forming the ring-shaped housing base and the expansion flange (31) closing off an annular gap (30) which is delimited from the outside by a cladding tube end (29) and through which the lute tour (3 ) the storage duct end to be connected emerges. 2.) Luttenverlängerungseinheit nach Anspruch 1, dadurch gekennzeichnet, daß die das Rohrgehäuse (11) bildenden Lutten (20, 24) Spirallutten sind, die an ihren dem Gehäuseboden (25) zugeordneten mit einer den Anschlußflansch (25) bildenden Folie verschweißt sind.2.) Extension pipe unit according to claim 1, characterized in that the pipe housing (11) forming pipes (20, 24) are spiral pipes which are welded to the housing base (25) associated with a film forming the connecting flange (25). 3.) Luttenverlängerungseinheit nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet , daß das Hüllrohr (20) Aufhängeösen (34, 35) für Laufkatzen (9, 10) einer Einschienenhängebahn aufwei3.) air extension unit according to one of claims 1 or 2,
characterized in that the cladding tube (20) has suspension eyes (34, 35) for trolleys (9, 10) of a monorail overhead conveyor
EP81104189A 1981-06-02 1981-06-02 Extension unit for a ventilation tubing Withdrawn EP0066000A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81104189A EP0066000A1 (en) 1981-06-02 1981-06-02 Extension unit for a ventilation tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81104189A EP0066000A1 (en) 1981-06-02 1981-06-02 Extension unit for a ventilation tubing

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EP0066000A1 true EP0066000A1 (en) 1982-12-08

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EP81104189A Withdrawn EP0066000A1 (en) 1981-06-02 1981-06-02 Extension unit for a ventilation tubing

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625631A (en) * 1985-01-16 1986-12-02 Mobil Oil Corporation Method and apparatus for extending ventilation ductwork
WO2007081216A1 (en) * 2006-01-10 2007-07-19 Protan A/S Method and system for venting tunnels; mine galleries or the like
CN102251791A (en) * 2011-06-17 2011-11-23 重庆工程职业技术学院 Folded ventilation duct assembly
EP2390462A1 (en) * 2010-05-26 2011-11-30 Sema Method and accessories for installing an airflow duct in an underground conduit
CN113607372A (en) * 2021-08-05 2021-11-05 安徽理工大学 Long-pressure short-pumping ventilation dust fall experiment platform air compression system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH525380A (en) * 1970-12-10 1972-07-15 Schafir & Mugglin Ag Bauuntern Duct storage with ventilation duct
FR2199745A5 (en) * 1972-09-20 1974-04-12 Ruhrkohle Ag
DE2433034A1 (en) * 1974-07-10 1976-01-22 Ferroplast Ges Fuer Metallund Mine local ventilation flexible ducting - coaxial lengths pulled out starting from outer most length ends located
EP0025862A1 (en) * 1979-09-04 1981-04-01 Maschinenfabrik Korfmann GmbH Device for extending colliery air ducts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH525380A (en) * 1970-12-10 1972-07-15 Schafir & Mugglin Ag Bauuntern Duct storage with ventilation duct
FR2199745A5 (en) * 1972-09-20 1974-04-12 Ruhrkohle Ag
DE2433034A1 (en) * 1974-07-10 1976-01-22 Ferroplast Ges Fuer Metallund Mine local ventilation flexible ducting - coaxial lengths pulled out starting from outer most length ends located
EP0025862A1 (en) * 1979-09-04 1981-04-01 Maschinenfabrik Korfmann GmbH Device for extending colliery air ducts

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625631A (en) * 1985-01-16 1986-12-02 Mobil Oil Corporation Method and apparatus for extending ventilation ductwork
WO2007081216A1 (en) * 2006-01-10 2007-07-19 Protan A/S Method and system for venting tunnels; mine galleries or the like
EP2390462A1 (en) * 2010-05-26 2011-11-30 Sema Method and accessories for installing an airflow duct in an underground conduit
FR2960617A1 (en) * 2010-05-26 2011-12-02 Sema METHOD AND ACCESSORIES FOR PLACING AN AERATION SHEATH IN A SUBTERRANEAN CONDUIT
CN102251791A (en) * 2011-06-17 2011-11-23 重庆工程职业技术学院 Folded ventilation duct assembly
CN102251791B (en) * 2011-06-17 2013-10-23 重庆工程职业技术学院 Folded ventilation duct assembly
CN113607372A (en) * 2021-08-05 2021-11-05 安徽理工大学 Long-pressure short-pumping ventilation dust fall experiment platform air compression system
CN113607372B (en) * 2021-08-05 2023-12-19 安徽理工大学 Long-pressure short-pumping ventilation dust fall experiment platform air compression system

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