EP2690362A2 - Switching element for a pneumatic transport system - Google Patents
Switching element for a pneumatic transport system Download PDFInfo
- Publication number
- EP2690362A2 EP2690362A2 EP20130177396 EP13177396A EP2690362A2 EP 2690362 A2 EP2690362 A2 EP 2690362A2 EP 20130177396 EP20130177396 EP 20130177396 EP 13177396 A EP13177396 A EP 13177396A EP 2690362 A2 EP2690362 A2 EP 2690362A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching unit
- line
- tube
- rotation
- bore
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/006—Fuel distribution and transport systems for pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/10—Supply line fittings
- F23K2203/105—Flow splitting devices to feed a plurality of burners
Definitions
- the invention relates to a switching unit for selectively connecting a central line of a pneumatic conveyor line with a single line from a group of multiple stubs.
- An important application for the switching unit according to the invention is a pneumatic conveying line for the transport of particulate or dust-like fuels, in particular fuel pellets from a storage room to a furnace.
- the AT 507 742 B1 shows an example of a pneumatic conveying line for the transport of particulate or dust-like fuels, in particular fuel pellets from a storage room to a furnace.
- the pneumatic conveying line comprises several suction probes, a switching unit, a pump, a solids separator and a system of pipe or hose lines.
- the suction probes are used to introduce pellets from the storage room into a suction line. They are arranged at the bottom of the storage room and supplied with one supply air stub and one suction stub. At a suction probe air flows from the connected supply air stub line into the storage room and from there into the suction stub connected to the suction probe.
- the air entrains pellets from the storage room into the suction stub pipe.
- EP 1 052 456 B1 is a construction for a switching unit that common type described in which the switching unit has two parallel, mutually slidably held flat parts, wherein a planar part has a plurality of holes with connection points for a plurality of stubs and the second planar part with only two holes Connection points for the two central lines (supply air line or suction line).
- the holes to which the central lines are connected can be positioned in alignment with a respective hole of a pair of holes to which the pair of stubs leading to a single suction probe is connected, with only one Suction probe is connected to the central lines and not a single further suction probe.
- the central lines must be movable in the longitudinal area adjoining the switching unit, they are designed as a flexible hose, at least in this longitudinal area.
- This flexible, "free" movable longitudinal area has limitations. The curvature may only be very small, otherwise the pellets would crumble too much when they hit the tube walls and the tube itself would soon be destroyed as well. Due to the low permissible curvature, the space requirement is disturbingly large.
- the center lines of the individual terminals are aligned parallel to the axis of rotation and spaced therefrom on a circumference. If now the disk is rotated about the axis of rotation, one end of the pipe section remains congruent at the central connection point, while the other end follows the circumference at which the several connections are arranged.
- the central connection point can be selectively connected to one of the connections.
- the flow channel of the pumped medium or of the material to be conveyed in this case runs first parallel to the axis of rotation through one of the connections, then arcuately into the pipe section and at the other end in an opposite arc out of the pipe section the central connection point.
- the flow channel thus has an s-arcuate shape.
- the pipe section itself may be s-arcuate and be aligned at its upper end parallel to the central connection point and at its lower end parallel to the terminals, or straight and connected at an acute angle to the central connection point or the connections.
- the flow channel remains s-arcuate in both cases.
- the object underlying the invention is to provide a switching unit for selectively connecting a central pipeline of a pneumatic conveyor line with a single line from a group of multiple stubs.
- the new switching unit to be created taking into account the space requirements of the lines to be connected thereto, should have a smaller or equal space requirement than the discussed switching units according to the prior art and thereby enable a smoother transport of the conveyed goods.
- EP 0203912 A1 . GB 1382347 A EP 0057133 A1 and FR 2125231 A1 assumed in which the switching unit has two parallel to each other, slidably held flat parts, wherein a flat part is held rigid and has a plurality of holes with connection points for a plurality of stubs and wherein the second planar part has only a single bore, which opens into a cavity, to which the central line is connected, wherein the second planar part is slidably held relative to the first planar part and by sliding the one bore of the second planar part to a respective bore of the plurality of holes on the first planar part can be aligned, wherein, the junction of the cavity is formed fixed to the central line against translational movement.
- the simple arcuate flow channel is particularly advantageous over the prior art, since the radius of curvature can be made larger with the same overall size of the device compared to the radius of curvature of the two arches in s-arc structure and a rapid change in direction by eliminating the opposite Curvatures are eliminated. As a result, the conveyed material is transported more gently and crumbling of the pellets and the clogging of the switching unit can be reduced or prevented.
- a switching unit 3 optionally connectable to one of three stubs 2.
- the stub lines 2 are each connected to a hole 3.1.1 through the fixed surface portion 3.1 of the switching unit 3.
- the individual bores 3.1.1 lie on a circular line about a rotation axis 3.5 around which the second planar part 3.2 of the switching unit 3 is rotatable relative to the stationary planar part 3.1.
- the second planar part 3.2 has at the same radial distance from the axis of rotation 3.5 only a single bore 3.2.1. This bore leads into the cavity 3.6, which is the interior of the tube 3.3. The end of the tube 3.3 facing away from the flat part 3.2 forms, in addition to the bore 3.2.1, the second opening 3.3.1 of the cavity 3.6.
- the flow direction through the bores 3.1.1 and the bore 3.2.1 through the flat parts 3.1, 3.2 is not aligned parallel to the axis of rotation 3.5, but is from the end of each affected stub out at a very acute angle something to the axis of rotation 3.5 out inclined.
- connection points for the stub lines 2 do not have to be oriented parallel to the axis of rotation 3.5 as shown, but at an acute angle thereto, the end faces of the stub lines 2 being closer to the axis of rotation 3.4 than the parts of the stubs adjoining the end faces second
- the two flat parts 3.1, 3.2 are mutually displaceable by relative rotation about the axis of rotation 3.5.
- opening 3.3.1 of the cavity 3.6 exactly coaxially positioned about the axis of rotation 3.5 is, this opening is not moved even if the position of the sheet-like part 3.2 relative to the sheet-like part 3.1 when changing from a stub 2 to another stub 2 is changed.
- opening 3.3.1 is the open end of the continuing, designed as a pipeline, central line 1 at.
- the latter end portions of the tube 3.3 and the conduit 1 are held against lateral deflection by a funnel-shaped shell 3.4, which is rigidly connected to the sheet-like part 3.2 and comprises said end portions on the lateral surface of the pipes.
- the rotational movement of the flat part 3.2 and the parts rigidly connected thereto are normally driven by a mechanical device that can be addressed by a controller.
- the device according to the invention offers comparable starting conditions with devices according to the prior art.
- a shaft part of the planar part 3.2 coaxially with the axis of rotation 3.5 through a central hole in the flat part 3.1 projecting through a drive unit, which is attached to the side of the stubs 2 on the flat part 3.1 ,
- the funnel-shaped shell 3.4 can also be replaced by a framework which is rigidly connected to the flat part 3.2.
- this framework can be formed by three struts and a ring, the three struts projecting from the planar part 3.2 to the end region of the conduit 1 and wherein the ring comprises the end region of the conduit 1 and the tube 3.3.
- the concept of the invention can also be implemented in construction methods of switching units in which the flat parts which serve to switch from one branch line to another branch line can be displaced along one another along an arbitrary curve.
- a cavity which is bounded by the fixed sheet-like part (3.1) to which the stubs are connected and by further surfaces (3.4), is on the fixed flat part of the movable planar part (3.2) to be arranged so that it is compared with the fixed planar part of this slidingly movable.
- One of said further surfaces (3.4), which delimit the cavity is provided with an opening, to which the continuing central line is to be connected.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
Description
Die Erfindung betrifft eine Umschalteinheit für das wahlweise Verbinden einer zentralen Leitung einer pneumatischen Förderstrecke mit einer einzigen Leitung aus einer Gruppe von mehreren Stichleitungen.
Ein wichtiger Anwendungsfall für die erfindungsgemäße Umschalteinheit ist eine pneumatische Förderstrecke für den Transport von stückigen oder staubförmigen Brennstoffen, insbesondere Brennstoffpellets von einem Lagerraum zu einer Feuerung.The invention relates to a switching unit for selectively connecting a central line of a pneumatic conveyor line with a single line from a group of multiple stubs.
An important application for the switching unit according to the invention is a pneumatic conveying line for the transport of particulate or dust-like fuels, in particular fuel pellets from a storage room to a furnace.
Die
In der
Aus anderen Bereichen der Fördertechnik sind pneumatische Förderleitungen mit Umschalteinheit bekannt, welche aus einer zentralen Anschlussstelle und mehreren Anschlüssen bestehen, wobei die einzelnen Anschlüsse durch Verdrehung einer Scheibe angesteuert werden können. Solche Vorrichtungen werden in
Von diesem Stand der Technik ausgehend besteht die der Erfindung zu Grunde liegende Aufgabe darin, eine Umschalteinheit für das wahlweise Verbinden einer zentralen Rohrleitung einer pneumatischen Förderstrecke mit einer einzigen Leitung aus einer Gruppe von mehreren Stichleitungen bereit zu stellen. Bei mindestens gleich guter Funktionsweise soll die neu zu schaffende Umschalteinheit unter Mitberücksichtigung des Platzbedarfes der daran anzuschließenden Leitungen einen geringeren oder gleichen Platzbedarf aufweisen als die besprochenen Umschalteinheiten gemäß dem Stand der Technik und dabei einen sanfteren Transport des Förderguts ermöglichen.Based on this prior art, the object underlying the invention is to provide a switching unit for selectively connecting a central pipeline of a pneumatic conveyor line with a single line from a group of multiple stubs. With at least equally good functioning, the new switching unit to be created, taking into account the space requirements of the lines to be connected thereto, should have a smaller or equal space requirement than the discussed switching units according to the prior art and thereby enable a smoother transport of the conveyed goods.
Zum Lösen der Aufgabe wird von einer Bauweise wie bei den
Durch diese an sich einfach zu realisierende Maßnahme wird erreicht, dass beim Umschalten durch die Umschalteinheit keine Leitung verformt werden muss. Alle an der Strömungsführung beteiligten Oberflächen können damit glatt und aus sehr festem Material ausgebildet werden, womit engere Leitungskrümmungen als bei den vorbekannten Bauweisen realisierbar sind ohne dass es zu negativen Folgen führt und womit Platzbedarf verringert wird.By this measure, which is easy to implement, it is achieved that no line has to be deformed when switching over by the switching unit. All involved in the flow guidance surfaces can thus be smooth and made of very solid material, which narrower line curvatures than in the previously known constructions can be realized without causing negative consequences and thus space requirements is reduced.
Als erfindungsgemäße Verbesserung wird vorgeschlagen die einzelnen Stichleitungen vom Endbereich heraus aus in einem sehr spitzen Winkel etwas zu der Drehachse hin geneigt auszurichten. Damit wird erreicht, dass der Fließkanal nicht wie nach dem Stand der Technik eine S-bogenförmige Krümmung aufzuweisen braucht, sondern nur eine einzige, beispielsweise kreisbogenförmige Krümmung. Das ist bezüglich des Herstellungsvorganges und bezüglich des Strömungsverhaltens vorteilhaft. Speziell bei der Förderung von Brennstoffpellets ist der einfach kreisbogenförmige Fließkanal besonders vorteilhaft gegenüber dem Stand der Technik, da der Krümmungsradius bei gleichbleibender Gesamtgröße der Vorrichtung größer ausgeführt werden kann gegenüber dem Krümmungsradius der beiden Bögen bei s-bogenförmigen Aufbau und eine rasche Richtungsänderung durch Wegfallen der entgegengesetzten Krümmungen entfällt. Dadurch wird das Fördergut sanfter transportiert und ein Zerbröseln der Pellets sowie das Verstopfen der Umschalteinheit können reduziert bzw. verhindert werden.As an improvement according to the invention, it is proposed to align the individual branch lines from the end area at a very acute angle somewhat inclined to the axis of rotation. This ensures that the flow channel does not need to have an S-curved curvature as in the prior art, but only a single, for example circular arc-shaped curvature needs. This is advantageous with respect to the manufacturing process and with regard to the flow behavior. Especially in the promotion of fuel pellets, the simple arcuate flow channel is particularly advantageous over the prior art, since the radius of curvature can be made larger with the same overall size of the device compared to the radius of curvature of the two arches in s-arc structure and a rapid change in direction by eliminating the opposite Curvatures are eliminated. As a result, the conveyed material is transported more gently and crumbling of the pellets and the clogging of the switching unit can be reduced or prevented.
Die Erfindung wird an Hand einer Zeichnung zu einem speziellen Ausführungsbeispiel veranschaulicht bevor dazu innerhalb des Erfindungsgedankens liegende, mögliche Abänderungen und Verallgemeinerungen erklärt werden.
- Fig. 1:
- zeigt in seitlicher Teilschnittansicht stilisiert eine beispielhafte, erfindungsgemäße Umschalteinheit einschließlich daran angeschlossenen Leitungsstücken.
- Fig. 1:
- shows in a side partial sectional view stylized an exemplary, inventive switching unit including connected line pieces.
Gemäß der Vorrichtung von
Die Stichleitungen 2 sind jeweils an eine Bohrung 3.1.1 durch den feststehenden flächigen Teil 3.1 der Umschalteinheit 3 angeschlossen. Die einzelnen Bohrungen 3.1.1 liegen auf einer Kreislinie um eine Drehachse 3.5 herum, um welche der zweite flächige Teil 3.2 der Umschalteinheit 3 gegenüber dem feststehenden flächigen Teil 3.1 drehbar ist.The
Der zweite flächige Teil 3.2 weist im gleichen Radialabstand zur Drehachse 3.5 nur eine einzige Bohrung 3.2.1 auf. Diese Bohrung führt in den Hohlraum 3.6, welcher der Innenraum des Rohres 3.3 ist. Das vom flächigen Teil 3.2 abgewandte Ende des Rohres 3.3 bildet neben der Bohrung 3.2.1 die zweite Öffnung 3.3.1 des Hohlraums 3.6.The second planar part 3.2 has at the same radial distance from the axis of rotation 3.5 only a single bore 3.2.1. This bore leads into the cavity 3.6, which is the interior of the tube 3.3. The end of the tube 3.3 facing away from the flat part 3.2 forms, in addition to the bore 3.2.1, the second opening 3.3.1 of the cavity 3.6.
Die Fließrichtung durch die Bohrungen 3.1.1 und die Bohrung 3.2.1 durch die flächigen Teile 3.1, 3.2 ist nicht parallel zur Drehachse 3.5 ausgerichtet, sondern ist vom Endbereich der jeweils betroffenen Stichleitung heraus aus in einem sehr spitzen Winkel etwas zu der Drehachse 3.5 hin geneigt. Damit wird erreichbar, dass das Rohr 3.3 nicht eine S-Doppelkrümmung aufzuweisen braucht, sondern wie dargestellt nur eine einzige, beispielsweise kreisbogenförmige Krümmung. Das ist bezüglich des Herstellungsvorganges und bezüglich des Strömungsverhaltens vorteilhaft. Um die Fließrichtung dementsprechend auszurichten müssen die Anschlussstellen für die Stichleitungen 2 nicht wie dargestellt parallel zur Drehachse 3.5 ausgerichtet sein, sondern in einem spitzen Winkel dazu, wobei die Stirnflächen der Stichleitungen 2 näher an der Drehachse 3.4 liegen als die an die Stirnflächen anschließenden Teile der Stichleitungen 2.The flow direction through the bores 3.1.1 and the bore 3.2.1 through the flat parts 3.1, 3.2 is not aligned parallel to the axis of rotation 3.5, but is from the end of each affected stub out at a very acute angle something to the axis of rotation 3.5 out inclined. This makes it achievable that the tube 3.3 need not have an S-double curvature, but as shown only a single, for example circular arc-shaped curvature. This is advantageous with respect to the manufacturing process and with regard to the flow behavior. In order to align the flow direction accordingly, the connection points for the
Die beiden flächigen Teile 3.1, 3.2 sind durch Relativdrehung um die Drehachse 3.5 gegeneinander verschiebbar. Indem das vom flächigen Teil 3.2 abgewandte Ende des Rohres 3.3 und damit Öffnung 3.3.1 des Hohlraums 3.6 genau koaxial um die Drehachse 3.5 positioniert wird, wird diese Öffnung auch dann nicht bewegt, wenn die Position des flächigen Teils 3.2 gegenüber dem flächigen Teil 3.1 beim Wechsel von einer Stichleitung 2 auf einen andere Stichleitung 2 verändert wird. An der Öffnung 3.3.1 liegt die offene Stirnseite der weiterführenden, als Rohrleitung ausgeführten, zentralen Leitung 1 an.The two flat parts 3.1, 3.2 are mutually displaceable by relative rotation about the axis of rotation 3.5. By the end facing away from the flat portion 3.2 of the tube 3.3 and thus opening 3.3.1 of the cavity 3.6 exactly coaxially positioned about the axis of rotation 3.5 is, this opening is not moved even if the position of the sheet-like part 3.2 relative to the sheet-like part 3.1 when changing from a
In der dargestellten Ausführung sind die letztgenannten Endbereiche des Rohres 3.3 und der Leitung 1 gegen seitliches Ausweichen durch eine trichterförmige Schale 3.4 gehalten, welche mit dem flächigen Teil 3.2 starr verbunden ist und die besagten Endbereiche an der Mantelfläche der Rohrleitungen umfasst.In the illustrated embodiment, the latter end portions of the tube 3.3 and the
Es ist aus der Zeichnung klar ersichtlich, dass beim Umschalten der Verbindung von der Leitung 1 zu einer Stichleitung 2 auf eine andere Stichleitung 2 kein Leitungsteil verformt zu werden braucht, sondern nur das Rohr 3.3 als Ganzes um die Drehachse 3.5 gedreht zu werden braucht. Dennoch kommt es auf dem ganzen Fließweg durch die Leitungen 2, 3.3, 1 und durch die Bohrungen 3.1.1, 3.2.1 weder zu einer Verringerung des Fließquerschnittes noch zu einer plötzlichen Änderung der Fließrichtung noch zu einer vor- oder rückspringenden Kante. Trotzdem ausschließlich mit Rohren das Auslangen gefunden werden kann, herrschen also beste Fließbedingungen.It is clear from the drawing that when switching the connection from the
Wie auch bei den Vorrichtungen entsprechend dem Stand der Technik ist im Normalfall die Drehbewegung des flächigen Teils 3.2 und der damit starr verbundenen Teile durch eine maschinelle, von einer Steuerung ansprechbare Vorrichtung angetrieben. Diesbezüglich bietet die erfindungsgemäße Vorrichtung vergleichbare Ausgangsbedingungen mit Vorrichtungen entsprechend dem Stand der Technik. Beispielsweise kann für den Antrieb des flächigen Teils 3.2 zu Drehbewegung ein Wellenteil vom flächigen Teil 3.2 aus koaxial mit der Drehachse 3.5 durch eine zentrale Bohrung im flächigen Teil 3.1 hindurch an eine Antriebseinheit ragen, welche auf der Seite der Stichleitungen 2 am flächigen Teil 3.1 befestigt ist.As with the devices according to the prior art, the rotational movement of the flat part 3.2 and the parts rigidly connected thereto are normally driven by a mechanical device that can be addressed by a controller. In this regard, the device according to the invention offers comparable starting conditions with devices according to the prior art. For example, for the drive of the flat part 3.2 to rotational movement, a shaft part of the planar part 3.2 coaxially with the axis of rotation 3.5 through a central hole in the flat part 3.1 projecting through a drive unit, which is attached to the side of the
An Abwandlungen und Verallgemeinerungen gegenüber der in
- An Stelle eine trichterförmige Schale 3.4 als seitliche Stütze für das Rohr 3.3 und die zentrale Leitung 1 vorzusehen, kann man beispielsweise auch das Rohr 3.3 besonders steif ausführen und an dessen Endbereich eine Umfassung für die
Mantelfläche der Leitung 1 vorsehen.
- Instead of providing a funnel-shaped shell 3.4 as a lateral support for the pipe 3.3 and the
central conduit 1, it is also possible, for example, to make the pipe 3.3 particularly rigid and provide an enclosure for the lateral surface of theconduit 1 at the end region thereof.
Man kann die trichterförmige Schale 3.4 auch durch ein Gerüst ersetzen, welches mit dem flächigen Teil 3.2 starr verbunden ist. Beispielsweise kann dieses Gerüst durch drei Streben und einen Ring gebildet sein, wobei die drei Streben vom flächigen Teil 3.2 aus zum Endbereich der Leitung 1 ragen und wobei der Ring den Endbereich der Leitung 1 und des Rohres 3.3 umfasst.The funnel-shaped shell 3.4 can also be replaced by a framework which is rigidly connected to the flat part 3.2. For example, this framework can be formed by three struts and a ring, the three struts projecting from the planar part 3.2 to the end region of the
Insbesondere an der Luftzufuhrseite einer pneumatischen Förderstrecke, also an jenem Teil des Leitungssystems, in welchem nur Luft aber kein zu transportierendes Gut bewegt wird, kann man eine Bauweise anwenden, welche sich von der in
Bei dem in
Der Erfindungsgedanke lässt sich aber auch an Bauweisen von Umschalteinheiten realisieren, bei denen die für das Umschalten von einer Stichleitung auf einen andere Stichleitung dienenden, aneinander verschiebbaren flächigen Teile entlang einer beliebigen Kurve aneinander verschiebbar sind. In einem Hohlraum, welcher durch den fixierten flächigen Teil (3.1) an welchem die Stichleitungen angeschlossenen sind und durch weitere Flächen (3.4) begrenzt ist, ist am fixierten flächigen Teil der bewegliche flächige Teil (3.2) so anzuordnen, dass er gegenüber dem fixierten flächigen Teil an diesem gleitend geführt bewegbar ist. Eine der besagten weiteren Flächen (3.4), welche den Hohlraum begrenzen, ist mit einer Öffnung versehen, an welche die weiterführende zentrale Leitung anzuschließen ist.However, the concept of the invention can also be implemented in construction methods of switching units in which the flat parts which serve to switch from one branch line to another branch line can be displaced along one another along an arbitrary curve. In a cavity, which is bounded by the fixed sheet-like part (3.1) to which the stubs are connected and by further surfaces (3.4), is on the fixed flat part of the movable planar part (3.2) to be arranged so that it is compared with the fixed planar part of this slidingly movable. One of said further surfaces (3.4), which delimit the cavity, is provided with an opening, to which the continuing central line is to be connected.
Claims (6)
dadurch gekennzeichnet, dass
die Anschlussstellen für die Stichleitungen (2), die Bohrungen (3.1.1) und die Bohrung (3.2.1) in einem spitzen Winkel zu der Drehachse (3.5) ausgerichtet sind und das Rohr (3.3) bogenförmig geformt ist.Switching unit (3) for selectively connecting a central line (1) of a pneumatic conveyor line with a single line of a group of multiple stubs (2), wherein the switching unit (3) arranged parallel to each other, guided guided guided slidably flat parts (3.1 , 3.2), wherein a flat part (3.1) is held immovable and a plurality of holes (3.1.1) with connection points for each stub line (2), wherein the second planar part (3.2) only a single bore (3.2 .1), to which a cavity (3.6) limiting tube (3.3) is attached, at the other end of the central line (1) can be connected, wherein by sliding movement between the planar parts (3.1, 3.2) into the cavity (3.6) opening bore (3.2.1) can be aligned in each case to a bore (3.1.1) from the plurality of holes on the first surface part (3.1), wherein the connection Position (3.3.1) of the tube (3.3) to the central line (1) is fixed against translational movement
characterized in that
the connection points for the stub lines (2), the bores (3.1.1) and the bore (3.2.1) are aligned at an acute angle to the axis of rotation (3.5) and the tube (3.3) is arc-shaped.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT8202012A AT513148B1 (en) | 2012-07-23 | 2012-07-23 | Switching unit of a pneumatic conveying line |
Publications (1)
Publication Number | Publication Date |
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EP2690362A2 true EP2690362A2 (en) | 2014-01-29 |
Family
ID=48914049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20130177396 Withdrawn EP2690362A2 (en) | 2012-07-23 | 2013-07-22 | Switching element for a pneumatic transport system |
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EP (1) | EP2690362A2 (en) |
AT (1) | AT513148B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105976897A (en) * | 2016-04-26 | 2016-09-28 | 石策略 | Pre-branch cable |
CN106907730A (en) * | 2015-12-22 | 2017-06-30 | 天津亿阔金属制品有限公司 | A kind of double boiler automatic coal charging system |
AT520097B1 (en) * | 2017-12-21 | 2019-01-15 | Goi Tec E U | Soft conveyor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2125231B1 (en) * | 1971-02-16 | 1976-05-28 | Neu Ets | |
FR2498573B1 (en) * | 1981-01-28 | 1986-08-29 | Fluidelec Sa | APPARATUS FOR AUTOMATIC DIGITAL STORAGE AND STORAGE |
AT385746B (en) * | 1985-05-29 | 1988-05-10 | Restacom Ag | TUBE MAIL STATION AND / OR SWITCH |
AT3734U1 (en) * | 1999-05-12 | 2000-07-25 | Windhager Zentralheizung Ag | SUCTION CONVEYOR FOR A HEATING SYSTEM |
AT507742B1 (en) * | 2008-12-16 | 2010-10-15 | Froeling Heizkessel Und Behael | METHOD FOR TRANSFERRING PARTICULAR FUEL, ESPECIALLY PELLETS, FROM A STORAGE ROOM AND DEVICE FOR CARRYING OUT SAID METHOD |
-
2012
- 2012-07-23 AT AT8202012A patent/AT513148B1/en active
-
2013
- 2013-07-22 EP EP20130177396 patent/EP2690362A2/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106907730A (en) * | 2015-12-22 | 2017-06-30 | 天津亿阔金属制品有限公司 | A kind of double boiler automatic coal charging system |
CN105976897A (en) * | 2016-04-26 | 2016-09-28 | 石策略 | Pre-branch cable |
AT520097B1 (en) * | 2017-12-21 | 2019-01-15 | Goi Tec E U | Soft conveyor |
AT520097A4 (en) * | 2017-12-21 | 2019-01-15 | Goi Tec E U | Soft conveyor |
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AT513148A4 (en) | 2014-02-15 |
AT513148B1 (en) | 2014-02-15 |
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