EP0754809A1 - Device for removing separable matter from a liquid flowing in a gutter - Google Patents
Device for removing separable matter from a liquid flowing in a gutter Download PDFInfo
- Publication number
- EP0754809A1 EP0754809A1 EP96110638A EP96110638A EP0754809A1 EP 0754809 A1 EP0754809 A1 EP 0754809A1 EP 96110638 A EP96110638 A EP 96110638A EP 96110638 A EP96110638 A EP 96110638A EP 0754809 A1 EP0754809 A1 EP 0754809A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow shaft
- heat generator
- shaft
- screw conveyor
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S198/00—Conveyors: power-driven
- Y10S198/952—Heating or cooling
Definitions
- the invention relates to a device for removing material to be separated from a liquid flowing in a channel, with a screw conveyor device for the material to be separated, which has a housing, a shaft and a spiral conveyor, for the material to be separated and with a heat generator, in particular an inclined upward direction and leading to a discharge point Heating device for heating the material to be discharged upwards.
- a device for removing material to be separated from a liquid flowing in a channel, with a screw conveyor device for the material to be separated, which has a housing, a shaft and a spiral conveyor, for the material to be separated and with a heat generator, in particular an inclined upward direction and leading to a discharge point Heating device for heating the material to be discharged upwards.
- a device can be used in particular in wastewater treatment plants, but can also be used advantageously for other areas of technology, for example in the textile industry, the plastics industry, in slaughterhouses and the like, and always when a product to be separated is in a more or less solid form a liquid, especially water,
- Such a device for removing material to be separated from a liquid flowing in a channel necessarily also has a separating device which has a separating surface through which the liquid to be cleaned flows.
- the manner in which this separating device is designed does not matter in the present context. It can therefore be of any design.
- the problem on which the present invention is based is as follows.
- the liquid flowing in the channel will generally have a temperature of 10 ° C., particularly in sewage treatment plants, so that there is no risk of freezing.
- the device mentioned at the outset also has parts, in particular the screw conveyor device which conveys upwards or at right angles and which can be exposed to sub-zero temperatures, particularly outdoors and in winter. So there is a risk of freezing here.
- the screw conveyor device is generally not operated continuously, but discontinuously, and the time intervals in which the material to be separated rests in the area of the screw conveyor device can also become relatively large.
- a device of the type described at the outset which, in addition to the screw conveyor device for conveying the material to be separated, has a heating device for heating the material to be separated upwards.
- the heating device has a heat generator in the form of a heating cable which is attached to the outside of the housing of the screw conveyor.
- the heating cable extends over essential areas of the axial length of the housing and over its circumference.
- the heat generator is then in turn covered by an insulating layer which is intended to keep the heat output of the heat generator to the outside within reasonable limits.
- the insulation is protected by a second housing that encloses the insulation. This means that the construction effort for the insulation and the additional housing serving as cladding is considerable. The part of the heat effectively acting on the material to be separated is unsatisfactory due to the losses that occur.
- the invention is therefore based on the object of demonstrating a device of the type described in the introduction in which the energy released in the heat generator is used more economically.
- the shaft is designed as a hollow shaft, at least in its region facing the discharge point, and in that the heat generator of the heating device is arranged in the hollow shaft.
- the invention is based on the idea that the heat generator is no longer to be arranged outside, that is to say outside of the housing of the screw conveyor device, but rather, as it were, in the center or in the axis of the shaft of the screw conveyor device.
- the shaft is designed as a hollow shaft, which can be done in a simple manner by using a tube as the shaft, on the outer circumference of which the conveyor spiral is arranged. The interior space thus formed is then available for the arrangement of the heat generator of the heating device.
- an electrical heat generator will be used, so that the electrical energy can be supplied to the heat generator in a simple manner through the hollow shaft.
- the heat generator as a pipe and, for example, using the liquid from the channel and its temperature for heating purposes.
- the heat in the center of the screw conveyor By releasing the heat in the center of the screw conveyor, an essential better heat transfer efficiency achieved. In the end, part of the heat will flow away to the outside as heat loss, but the total amount of heat released is used to transfer the relevant parts of the screw conveyor and thus the z. B. to keep on the conveyor spiral separating material at temperature. The heat is therefore transferred from the conveyor helix to the material to be separated at the endangered points by heat conduction. As is known, a gap is provided between the conveyor spiral and the housing, the insulating effect of which is advantageously used in order to keep the losses small.
- more direct heat is transferred to the housing via the material to be separated via the direct contact between the conveying spiral, the resting material to be separated and the housing, especially at these points, so that freezing phenomena are also avoided here.
- the heat generator can be arranged stationary in the hollow shaft.
- the heat generator can in particular take the form of a rod. It is possible to support the stationary heat generator against the rotating hollow shaft via one or more bearings.
- the heat generator it is also possible for the heat generator to be arranged to rotate in the hollow shaft and for a slip ring body to be provided for supplying electrical energy to the heat generator.
- the energy supply in the form of electrical energy takes place via a slip ring body which is arranged on the hollow shaft.
- a heat transfer medium in particular a liquid, is arranged to improve the heat transfer in the hollow shaft.
- This heat transfer medium serves to couple the surface of the heat generator with the inner surface of the hollow shaft and in this respect favors the heat transfer.
- the heat transfer medium can be a liquid. But the use of an easily meltable salt is also possible. The advantage is then used that the amount of heat required to change the state of matter can be used for storage purposes, so that the temperature of the heat transfer medium can remain constant.
- a motor For driving the hollow shaft with the conveyor spiral, a motor can be arranged at the upper end of the hollow shaft, the shaft of which is pierced for the purpose of supplying, in particular, electrical energy to the heat generator. The energy is then supplied through the perforated shaft of the motor with a direct connection to the hollow shaft of the screw conveyor. This applies not only to the supply of electrical energy, but also, for example, when a heating liquid is sent through the hollow shaft by means of a pump via a pipeline.
- the housing of the screw conveyor device can be surrounded by insulation. This reduces radiation and convection losses in the housing of the screw conveyor.
- the screw conveyor device can have a perforated drainage housing in front of the discharge point.
- the drainage housing can consist of insulating material, in particular polyurethane.
- a compacting zone for the material to be separated is preferably formed here and the liquid can be returned to the channel through the perforations.
- a device 1 which essentially comprises a separating device 2 and a screw conveyor device 3.
- the device 1 is installed in a channel 4 with its common axis 5 inclined, in such a way that in particular a part of the separating device 2 is below the water level 6, while the screw conveyor 3 is arranged at least with its upper part above the water level 6 and leads out of the channel 4 upwards.
- the screw conveyor 3 has a hollow shaft 7, a conveyor helix 8 and a housing 9 which surrounds the conveyor helix 8 in a tubular shape.
- a motor 10 is placed, which is used to drive the hollow shaft 7 with a conveyor spiral 8.
- a discharge point 11 is formed, which, for example as a discharge chute, enables the separation material to be dropped into a container.
- a compacting zone for the material to be separated 15 is formed, in the area of which a drainage housing 19 provided with openings is arranged.
- the drainage housing 19 is made of insulating material, in particular polyurethane.
- the screw conveyor 3 is at least in its upper region, in which it can be exposed to the influence of sub-zero temperatures, especially in winter operation Provide heating device, the essential components of which are arranged in the interior 12 of the hollow shaft 7.
- Fig. 2 shows a heat generator 13 which is rod-shaped. The arrangement of heating cables or the like can also be possible here.
- the supply of the usually electrical energy takes place through the hollow shaft 7 from its upper end.
- FIG. 3 shows the end of the motor 10 placed on top.
- the shaft of the motor 10 is also hollow, that is to say pierced.
- a slip ring body 14 is used to feed the electrical energy in the event that the heat generator 13 is rotatably arranged in the interior 12 of the hollow shaft 7.
- Fig. 2 shows how separating material 15 can be deposited partially on the conveyor spiral 8, partially on the wall of the housing 9, at least for the times in which the screw conveyor 3 is not driven. As is known, there is an intermittent drive with more or less long downtimes.
- the housing 9 of the screw conveyor 3 can be surrounded by insulation 16, which is suitably protected by a panel 17.
- Fig. 2 shows that the interior 12 of the hollow shaft 7 can be completely or partially filled with a heat transfer medium 18 which surrounds the heat generator 13 and ensures better heat transfer to the hollow shaft 7.
- the heat transfer medium can be a liquid, but also a latent heat store, for example a salt, which changes into the liquid state of aggregation at a comparatively low heating temperature.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Screw Conveyors (AREA)
- Cyclones (AREA)
- Processing Of Solid Wastes (AREA)
- Refuse Collection And Transfer (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Entfernen von Abscheidegut aus einer im einem Gerinne strömenden Flüssigkeit, mit einer insbesondere schräg aufwärts gerichteten und zu einer Abwurfstelle führenden, angetriebenen und ein Gehäuse, eine Welle und eine Förderwendel aufweisenden Schneckenfördereinrichtung für das Abscheidegut sowie mit einer einen Wärmeerzeuger aufweisenden Heizeinrichtung zur Beheizung des nach oben ausgetragenen Abscheideguts. Eine solche Vorrichtung kann insbesondere in Kläranlagen eingesetzt werden, ist jedoch auch vorteilhaft für andere Bereiche der Technik anwendbar, beispielsweise in der Textilindustrie, der Kunststoffindustrie, in Schlachthöfen und dgl., und zwar immer dann, wenn ein Abscheidegut in mehr oder weniger fester Form aus einer Flüssigkeit, insbesondere Wasser, herausgeholt werden soll und dabei Bedingungen eintreten können, insbesondere im Winterbetrieb, in denen ein Einfrieren des Abscheidegutes im Bereich der Schneckenfördereinrichtung vorkommen kann.The invention relates to a device for removing material to be separated from a liquid flowing in a channel, with a screw conveyor device for the material to be separated, which has a housing, a shaft and a spiral conveyor, for the material to be separated and with a heat generator, in particular an inclined upward direction and leading to a discharge point Heating device for heating the material to be discharged upwards. Such a device can be used in particular in wastewater treatment plants, but can also be used advantageously for other areas of technology, for example in the textile industry, the plastics industry, in slaughterhouses and the like, and always when a product to be separated is in a more or less solid form a liquid, especially water, and conditions can occur, especially in winter operation, in which the material to be separated can freeze in the area of the screw conveyor.
Eine solche Vorrichtung zum Entfernen von Abscheidegut aus einer in einem Gerinne strömenden Flüssigkeit weist notwendigerweise auch eine Abscheideeinrichtung auf, die eine Abscheidefläche besitzt, welche von der zu reinigenden Flüssigkeit durchströmt wird. Auf die Art und Weise der Ausbildung dieser Abscheideeinrichtung kommt es im vorliegenden Zusammenhang jedoch nicht an. Sie kann daher beliebig ausgebildet sein.Such a device for removing material to be separated from a liquid flowing in a channel necessarily also has a separating device which has a separating surface through which the liquid to be cleaned flows. The manner in which this separating device is designed does not matter in the present context. It can therefore be of any design.
Die Problematik, von der die vorliegende Erfindung ausgeht, ist folgende. Die in dem Gerinne strömende Flüssigkeit wird in aller Regel, insbesondere bei Kläranlagen, eine Temperatur von 10°C aufweisen, so daß die Gefahr des Einfrierens nicht besteht. Die eingangs erwähnte Vorrichtung besitzt jedoch auch Teile, insbesondere die nach oben schräg oder auch senkrecht fördernde Schneckenfördereinrichtung, die insbesondere im Freien und im Winterbetrieb auch Minustemperaturen ausgesetzt sein kann. Damit ist hier die Gefahr des Einfrierens gegeben. Diese wird noch dadurch erhöht, daß die Schneckenfördereinrichtung in der Regel nicht kontinuierlich betrieben wird, sondern diskontinuierlich, wobei die Zeitintervalle, in denen das Abscheidegut im Bereich der Schneckenfördereinrichtung ruht, auch relativ groß werden können.The problem on which the present invention is based is as follows. The liquid flowing in the channel will generally have a temperature of 10 ° C., particularly in sewage treatment plants, so that there is no risk of freezing. However, the device mentioned at the outset also has parts, in particular the screw conveyor device which conveys upwards or at right angles and which can be exposed to sub-zero temperatures, particularly outdoors and in winter. So there is a risk of freezing here. This is further increased by the fact that the screw conveyor device is generally not operated continuously, but discontinuously, and the time intervals in which the material to be separated rests in the area of the screw conveyor device can also become relatively large.
Es ist eine Vorrichtung der eingangs beschriebenen Art bekannt, die neben der Schneckenfördereinrichtung für die Förderung des Abscheidegutes eine Heizeinrichtung zur Beheizung des nach oben ausgetragenen Abscheidegutes aufweist. Die Heizeinrichtung besitzt einen Wärmeerzeuger in Form eines Heizkabels, welches außen am Gehäuse der Schneckenfördereinrichtung angebracht ist. Das Heizkabel erstreckt sich dabei über wesentliche Bereiche der axialen Länge des Gehäuses und über dessen Umfang. Der Wärmeerzeuger ist dann wiederum von einer Isolierschicht abgedeckt, die die Wärmeabgabe des Wärmeerzeugers nach außen in vertretbaren Grenzen halten soll. Die Isolierung wird durch ein zweites Gehäuse geschützt, welches die Isolierung einschließt. Damit ist der bauliche Aufwand für die Isolierung und des zusätzlichen, als Verkleidung dienenden Gehäuses erheblich. Der effektiv an dem Abscheidegut einwirkende Teil der Wärme ist infolge der auftretenden Verluste unbefriedigend.A device of the type described at the outset is known which, in addition to the screw conveyor device for conveying the material to be separated, has a heating device for heating the material to be separated upwards. The heating device has a heat generator in the form of a heating cable which is attached to the outside of the housing of the screw conveyor. The heating cable extends over essential areas of the axial length of the housing and over its circumference. The heat generator is then in turn covered by an insulating layer which is intended to keep the heat output of the heat generator to the outside within reasonable limits. The insulation is protected by a second housing that encloses the insulation. This means that the construction effort for the insulation and the additional housing serving as cladding is considerable. The part of the heat effectively acting on the material to be separated is unsatisfactory due to the losses that occur.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs beschriebenen Art aufzuzeigen, bei der die in dem Wärmeerzeuger entbundene Energie wirtschaftlicher genutzt wird.The invention is therefore based on the object of demonstrating a device of the type described in the introduction in which the energy released in the heat generator is used more economically.
Erfindungsgemäß wird dies bei einer Vorrichtung der eingangs beschriebenen Art dadurch erreicht, daß die Welle zumindest in ihrem der Abwurfstelle zugekehrten Bereich als Hohlwelle ausgebildet ist, und daß der Wärmeerzeuger der Heizeinrichtung in der Hohlwelle angeordnet ist.According to the invention, this is achieved in a device of the type described in the introduction in that the shaft is designed as a hollow shaft, at least in its region facing the discharge point, and in that the heat generator of the heating device is arranged in the hollow shaft.
Die Erfindung geht von dem Gedanken aus, den Wärmeerzeuger nicht mehr außen, also außerhalb des Gehäuses der Schneckenfördereinrichtung, anzuordnen, sondern gleichsam im Zentrum bzw. in der Achse der Welle der Schneckenfördereinrichtung. Zu diesem Zwecke wird die Welle als Hohlwelle ausgebildet, was in einfacher Weise dadurch geschehen kann, daß als Welle ein Rohr eingesetzt wird, auf dessen äußerem Umfang die Förderwendel angeordnet ist. Der so gebildete Innenraum steht dann für die Anordnung des Wärmeerzeugers der Heizeinrichtung zur Verfügung. In der Regel wird ein elektrischer Wärmeerzeuger Anwendung finden, so daß die elektrische Energie in einfacher Weise durch die Hohlwelle dem Wärmeerzeuger zugeleitet werden kann. Es besteht jedoch auch die Möglichkeit, den Wärmeerzeuger als Rohrleitung auszubilden und beispielsweise die Flüssigkeit aus dem Gerinne und deren Temperatur für Heizzwecke zu nutzen. Durch die Entbindung der Wärme im Zentrum der Schneckenfördereinrichtung wird ein wesentlich besserer Wirkungsgrad der Wärmeübertragung erreicht. Zwar wird auch hier letztendlich ein Teil der Wärme als Verlustwärme nach außen abfließen, jedoch wird die insgesamt entbundene Wärme genutzt, um die betreffenden Teile der Schneckenfördereinrichtung und damit das z. B. auf der Förderwendel aufruhende Abscheidegut auf Temperatur zu halten. Die Wärme wird daher gerade an den gefährdeten Stellen von der Förderwendel durch Wärmeleitung auf das Abscheidegut übertragen. Zwischen der Förderwendel und dem Gehäuse ist bekanntlich ein Spalt vorgesehen, dessen isolierende Wirkung vorteilhaft genutzt wird, um die Verluste klein zu halten. Andererseits wird aber über den direkten Kontakt zwischen der Förderwendel, dem aufruhenden Abscheidegut und dem Gehäuse gerade auch an diesen Stellen vergleichsweise mehr Wärme über das Abscheidegut an das Gehäuse übertragen, so daß auch hier Einfriererscheinungen vermieden werden.The invention is based on the idea that the heat generator is no longer to be arranged outside, that is to say outside of the housing of the screw conveyor device, but rather, as it were, in the center or in the axis of the shaft of the screw conveyor device. For this purpose, the shaft is designed as a hollow shaft, which can be done in a simple manner by using a tube as the shaft, on the outer circumference of which the conveyor spiral is arranged. The interior space thus formed is then available for the arrangement of the heat generator of the heating device. As a rule, an electrical heat generator will be used, so that the electrical energy can be supplied to the heat generator in a simple manner through the hollow shaft. However, there is also the option of designing the heat generator as a pipe and, for example, using the liquid from the channel and its temperature for heating purposes. By releasing the heat in the center of the screw conveyor, an essential better heat transfer efficiency achieved. In the end, part of the heat will flow away to the outside as heat loss, but the total amount of heat released is used to transfer the relevant parts of the screw conveyor and thus the z. B. to keep on the conveyor spiral separating material at temperature. The heat is therefore transferred from the conveyor helix to the material to be separated at the endangered points by heat conduction. As is known, a gap is provided between the conveyor spiral and the housing, the insulating effect of which is advantageously used in order to keep the losses small. On the other hand, however, more direct heat is transferred to the housing via the material to be separated via the direct contact between the conveying spiral, the resting material to be separated and the housing, especially at these points, so that freezing phenomena are also avoided here.
Der Wärmeerzeuger kann in der Hohlwelle stillstehend angeordnet sein. Dabei kann der Wärmeerzeuger insbesondere Stabform einnehmen. Es ist möglich, den stillstehenden Wärmeerzeuger über ein oder mehrere Lager gegenüber der sich drehenden Hohlwelle abzustützen.The heat generator can be arranged stationary in the hollow shaft. The heat generator can in particular take the form of a rod. It is possible to support the stationary heat generator against the rotating hollow shaft via one or more bearings.
Es ist aber auch möglich, daß der Wärmeerzeuger in der Hohlwelle mitdrehend angeordnet ist und daß für die Zufuhr elektrischer Energie zu dem Wärmeerzeuger ein Schleifringkörper vorgesehen ist. Die Energiezufuhr in Form von elektrischer Energie erfolgt dabei über einen Schleifringkörper, der an der Hohlwelle angeordnet ist. Bei dieser mitdrehenden Anordnung des Wärmeerzeugers kann vorteilhaft die Möglichkeit genutzt werden, den Wärmeerzeuger in direkter Anlage an der inneren Wandung der Hohlwelle zu halten.However, it is also possible for the heat generator to be arranged to rotate in the hollow shaft and for a slip ring body to be provided for supplying electrical energy to the heat generator. The energy supply in the form of electrical energy takes place via a slip ring body which is arranged on the hollow shaft. With this rotating arrangement of the heat generator, the possibility can advantageously be used to hold the heat generator in direct contact with the inner wall of the hollow shaft.
In beiden Anordnungsfällen ist es jedoch möglich, daß zur Verbesserung des Wärmeübergangs in der Hohlwelle ein Wärmeübertragungsmedium, insbesondere eine Flüssigkeit, angeordnet ist.In both cases, however, it is possible that a heat transfer medium, in particular a liquid, is arranged to improve the heat transfer in the hollow shaft.
Dieses Wärmeübertragungsmedium dient der Kopplung der Oberfläche des Wärmeerzeugers mit der inneren Oberfläche der Hohlwelle und begünstigt insoweit den Wärmeübergang. In der einfachsten Ausführungsform kann das Wärmeübertragungsmedium eine Flüssigkeit sein. Aber auch die Verwendung eines leicht schmelzbaren Salzes ist möglich. Dabei wird dann der Vorteil genutzt, daß die Wärmemenge, die zur Änderung des Aggregatzustandes erforderlich ist, zu Speicherzwecken genutzt werden kann, so daß die Temperatur des Wärmeübertragungsmediums konstant bleiben kann.This heat transfer medium serves to couple the surface of the heat generator with the inner surface of the hollow shaft and in this respect favors the heat transfer. In the simplest embodiment, the heat transfer medium can be a liquid. But the use of an easily meltable salt is also possible. The advantage is then used that the amount of heat required to change the state of matter can be used for storage purposes, so that the temperature of the heat transfer medium can remain constant.
Für den Antrieb der Hohlwelle mit der Förderwendel kann am oberen Ende der Hohlwelle ein Motor angeordnet sein, dessen Welle zum Zwecke der Zufuhr insbesondere elektrischer Energie zu dem Wärmeerzeuger durchbohrt ist. Die Zufuhr der Energie erfolgt dann durch die durchbohrte Welle des Motors hindurch unter direktem Anschluß an die Hohlwelle der Schneckenfördereinrichtung. Dies gilt nicht nur für die Zufuhr von elektrischer Energie, sondern beispielsweise auch dann, wenn eine der Erwärmung dienende Flüssigkeit vermittels einer Pumpe über eine Rohrleitung durch die Hohlwelle geschickt wird.For driving the hollow shaft with the conveyor spiral, a motor can be arranged at the upper end of the hollow shaft, the shaft of which is pierced for the purpose of supplying, in particular, electrical energy to the heat generator. The energy is then supplied through the perforated shaft of the motor with a direct connection to the hollow shaft of the screw conveyor. This applies not only to the supply of electrical energy, but also, for example, when a heating liquid is sent through the hollow shaft by means of a pump via a pipeline.
Das Gehäuse der Schneckenfördereinrichtung kann von einer Isolierung umgeben sein. Damit werden Strahlungs- und Konvektionsverluste des Gehäuses der Schneckenfördereinrichtung gemindert.The housing of the screw conveyor device can be surrounded by insulation. This reduces radiation and convection losses in the housing of the screw conveyor.
Die Schneckenfördereinrichtung kann vor der Abwurfstelle ein durchbrochenes Entwässerungsgehäuse aufweisen. Das Entwässerungsgehäuse kann aus isolierendem Material, insbesondere aus Polyurethan, bestehtn. Hier wird vorzugsweise eine Kompaktierzone für das Abscheidegut gebildet und die Flüssigkeit kann durch die Durchbrechungen in das Gerinne zurückgeführt werden.The screw conveyor device can have a perforated drainage housing in front of the discharge point. The drainage housing can consist of insulating material, in particular polyurethane. A compacting zone for the material to be separated is preferably formed here and the liquid can be returned to the channel through the perforations.
Die Erfindung wird anhand einer bevorzugten Ausführungsform weiter erläutert und beschrieben. Es zeigen:
- Fig. 1
- eine schematisierte Seitenansicht der Gesamtvorrichtung,
- Fig. 2
- eine Schnittdarstellung eines Bereiches der Schneckenfördereinrichtung und
- Fig. 3
- das obere Ende der Schneckenfördereinrichtung mit ihrem Antrieb und der Energiezuführung.
- Fig. 1
- a schematic side view of the overall device,
- Fig. 2
- a sectional view of an area of the screw conveyor and
- Fig. 3
- the upper end of the screw conveyor with its drive and energy supply.
In Fig. 1 ist eine Vorrichtung 1 dargestellt, die im wesentlichen einerseits eine Abscheideeinrichtung 2 und eine Schneckenfördereinrichtung 3 umfaßt. Die Vorrichtung 1 ist in ein Gerinne 4 mit ihrer gemeinsamen Achse 5 schrägstehend eingebaut, und zwar so, daß sich insbesondere ein Teil der Abscheideeinrichtung 2 unterhalb des Wasserspiegels 6 befindet, während die Schneckenfördereinrichtung 3 zumindest mit ihrem oberen Teil oberhalb des Wasserspiegels 6 angeordnet ist und aus dem Gerinne 4 nach oben herausführt.1 shows a
Die Schneckenfördereinrichtung 3 weist eine Hohlwelle 7, eine Förderwendel 8 sowie ein Gehäuse 9 auf, welches die Förderwendel 8 rohrförmig umgibt. Am oberen Ende der Hohlwelle 7 ist ein Motor 10 aufgesetzt, der dem Antrieb der Hohlwelle 7 mit Förderwendel 8 dient. Im oberen Bereich der Schneckenfördereinrichtung 3 ist eine Abwurfstelle 11 gebildet, die beispielsweise als Abwurfschurre das Abwerfen des Abscheidegutes in einen Container ermöglicht. Unmittelbar vor der Abwurfstelle 11 ist eine Kompaktierzone für das Abscheidegut 15 gebildet, in deren Bereich ein mit Durchbrechungen versehenes Entwässerungsgehäuse 19 angeordnet ist. Das Entwässerungsgehäuse 19 besteht aus isolierendem Material, insbesondere Polyurethan.The
Die Schneckenfördervorrichtung 3 ist zumindest in ihrem oberen Bereich, in welchem Sie dem Einfluß von Minustemperaturen, insbesondere im Winterbetrieb, ausgesetzt sein kann, mit einer Heizeinrichtung versehen, deren wesentliche Bestandteile im Innenraum 12 der Hohlwelle 7 angeordnet sind. Fig. 2 läßt einen Wärmeerzeuger 13 erkennen, der stabförmig ausgebildet ist. Auch die Anordnung von Heizkabeln oder dgl. kann hier möglich sein. Die Zufuhr der in der Regel elektrischen Energie erfolgt durch die Hohlwelle 7 von deren oberem Ende her. Fig. 3 zeigt das Ende des oben aufgesetzten Motors 10. Die Welle des Motors 10 ist ebenfalls hohl ausgebildet, also durchbohrt. Ein Schleifringkörper 14 dient der Einspeisung der elektrischen Energie für den Fall, daß der Wärmeerzeuger 13 mitdrehend im Innenraum 12 der Hohlwelle 7 angeordnet ist. Es ist aber auch möglich, den Energieerzeuger 13 stillstehend anzuordnen, so daß auch die Zuleitung der Energie stillstehend vorgesehen ist.The
Fig. 2 läßt erkennen, wie Abscheidegut 15 teilweise auf der Förderwendel 8, teilweise an der Wandung des Gehäuses 9 ruhend abgelagert sein kann, jedenfalls für die Zeiten, in denen die Schneckenfördereinrichtung 3 nicht angetrieben wird. Bekanntlich erfolgt hier ein intermittierender Antrieb mit mehr oder weniger großen Stillstandszeiten. Das Gehäuse 9 der Schneckenfördereinrichtung 3 kann von einer Isolierung 16 umgeben sein, die zweckmäßig durch eine Verkleidung 17 geschützt ist.Fig. 2 shows how separating
Fig. 2 läßt erkennen, daß der Innenraum 12 der Hohlwelle 7 mit einem Wärmeübertragungsmedium 18 ganz oder teilweise gefüllt sein kann, welches den Wärmeerzeuger 13 umgibt und für einen besseren Wärmeübergang zu der Hohlwelle 7 sorgt. Das Wärmeübertragungsmedium kann eine Flüssigkeit, aber auch ein Latentwärmespeicher sein, beispielsweise ein Salz, welches bei vergleichsweise niedriger Erwärmungstemperatur in den flüssigen Aggregatzustand übergeht.Fig. 2 shows that the interior 12 of the
- 11
- - Vorrichtung- Contraption
- 22nd
- - Abscheideeinrichtung- separator
- 33rd
- - Schneckenfördereinrichtung- screw conveyor
- 44th
- - Gerinne- flumes
- 55
- - Achse- axis
- 66
- - Wasserspiegel- water level
- 77
- - Hohlwelle- hollow shaft
- 88th
- - Förderwendel- spiral conveyor
- 99
- - Gehäuse- Casing
- 1010th
- - Motor- Engine
- 1111
- - Abwurfstelle- Drop point
- 1212th
- - Innenraum- Inner space
- 1313
- - Wärmeerzeuger- heat generator
- 1414
- - Schleifringkörper- slip ring body
- 1515
- - Abscheidegut- Separated material
- 1616
- - Isolierung- insulation
- 1717th
- - Verkleidung- fairing
- 1818th
- - Wärmeübertragungsmedium- heat transfer medium
- 1919th
- - Entwässerungsgehäuse- drainage housing
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29511462U DE29511462U1 (en) | 1995-07-15 | 1995-07-15 | Device for removing material to be separated from a liquid flowing in a channel |
| DE29511462U | 1995-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0754809A1 true EP0754809A1 (en) | 1997-01-22 |
| EP0754809B1 EP0754809B1 (en) | 1998-03-25 |
Family
ID=8010576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96110638A Expired - Lifetime EP0754809B1 (en) | 1995-07-15 | 1996-07-02 | Device for removing separable matter from a liquid flowing in a gutter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5798038A (en) |
| EP (1) | EP0754809B1 (en) |
| JP (1) | JP3967404B2 (en) |
| AT (1) | ATE164411T1 (en) |
| DE (2) | DE29511462U1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19744524C2 (en) * | 1997-10-09 | 2003-11-20 | Hans Huber Ag Masch & Anlagenb | Screening device for waste water arriving in an inlet pipe |
| US6382389B1 (en) * | 1998-07-16 | 2002-05-07 | Otis Elevator Company | Heated escalator handrail |
| US6029290A (en) * | 1998-10-26 | 2000-02-29 | Skimmer Valet, Inc. | Swimming pool skimmer cleaner |
| DE10204779A1 (en) * | 2002-02-05 | 2003-08-21 | Kone Corp | Device for heating escalators or moving walkways |
| US20060108196A1 (en) * | 2002-02-28 | 2006-05-25 | Toshiba Elevator Kabushiki Kaisha | Conveyer apparatus |
| US6915896B2 (en) * | 2003-02-25 | 2005-07-12 | Dippin' Dots, Inc. | Cleaning drain apparatus for an auger assembly |
| DE10316173B4 (en) * | 2003-04-04 | 2006-03-16 | Hans Huber Ag Maschinen- Und Anlagenbau | Device for removing fine screenings from a liquid |
| US20060093714A1 (en) * | 2004-11-01 | 2006-05-04 | Dippin' Dots, Inc. | Particulate ice cream dot cake |
| US9560853B2 (en) * | 2014-12-23 | 2017-02-07 | Aleksandr Taslagyan | Return flow conveyor device for heating food items |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH341477A (en) * | 1956-07-24 | 1959-10-15 | Goriot Emmanuel | Continuous filter press |
| DE3614666A1 (en) * | 1986-04-30 | 1987-11-05 | Hans Roesch | Screening apparatus for sewage treatment works |
| FR2642326A1 (en) * | 1989-01-11 | 1990-08-03 | Linco Sa | Device for purification/filtration of a fluid mixture of a component to be separated from impurities, especially for a wax feather-plucking plant |
| DE4042167A1 (en) * | 1989-12-29 | 1991-07-11 | Huber Hans Georg | Device for removing undesirable material from water in sewage works - including inclined screw conveyor with internal ribs on screw housing and spray nozzles for washing material |
| DE9113055U1 (en) * | 1991-06-28 | 1992-02-13 | Huber, Hans Georg, 8434 Berching, De |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1303470A (en) * | 1919-05-13 | gillette | ||
| US2617273A (en) * | 1949-04-25 | 1952-11-11 | Phillips Petroleum Co | Continuous crystallization apparatus and process |
| GB1273131A (en) * | 1968-05-21 | 1972-05-03 | Packaged Power Terminals Inc | Screw conveyor and/or mixing apparatus |
| US4009667A (en) * | 1975-05-05 | 1977-03-01 | Tyer Robert C | Incinerator for combustible refuse |
| US4530432A (en) * | 1983-09-13 | 1985-07-23 | Jude Engineering, Inc. | Screw conveyer |
| DE3630755A1 (en) * | 1986-09-10 | 1988-03-24 | Huber Hans Georg | DEVICE FOR THE REMOVAL OF SCREEN AND / OR SCREENED GOODS FROM A LIQUID FLOWING |
| DE3716434C1 (en) * | 1987-05-16 | 1988-12-08 | Hans-Georg Huber | Device for removing screenings and / or screenings from liquid flowing in a channel |
| DE3910389C1 (en) * | 1989-03-31 | 1990-08-30 | Hans-Georg Dipl.-Ing. 8434 Berching De Huber | |
| DE3942561C1 (en) * | 1989-08-22 | 1991-01-10 | Hans-Georg Dipl.-Ing. 8434 Berching De Huber | |
| DE4143376C2 (en) * | 1991-06-28 | 1994-12-15 | Hans Georg Huber | Compact system for separating and removing screenings and sand from feed channels |
| US5207904A (en) * | 1991-07-15 | 1993-05-04 | 396234 B C Ltd. | Apparatus for composting waste material |
| DE4211657C1 (en) * | 1992-04-07 | 1993-07-01 | Hans Huber Gmbh, 8434 Berching, De |
-
1995
- 1995-07-15 DE DE29511462U patent/DE29511462U1/en not_active Expired - Lifetime
-
1996
- 1996-07-02 AT AT96110638T patent/ATE164411T1/en not_active IP Right Cessation
- 1996-07-02 DE DE59600126T patent/DE59600126D1/en not_active Expired - Fee Related
- 1996-07-02 EP EP96110638A patent/EP0754809B1/en not_active Expired - Lifetime
- 1996-07-09 US US08/677,489 patent/US5798038A/en not_active Expired - Fee Related
- 1996-07-12 JP JP18377096A patent/JP3967404B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH341477A (en) * | 1956-07-24 | 1959-10-15 | Goriot Emmanuel | Continuous filter press |
| DE3614666A1 (en) * | 1986-04-30 | 1987-11-05 | Hans Roesch | Screening apparatus for sewage treatment works |
| FR2642326A1 (en) * | 1989-01-11 | 1990-08-03 | Linco Sa | Device for purification/filtration of a fluid mixture of a component to be separated from impurities, especially for a wax feather-plucking plant |
| DE4042167A1 (en) * | 1989-12-29 | 1991-07-11 | Huber Hans Georg | Device for removing undesirable material from water in sewage works - including inclined screw conveyor with internal ribs on screw housing and spray nozzles for washing material |
| DE9113055U1 (en) * | 1991-06-28 | 1992-02-13 | Huber, Hans Georg, 8434 Berching, De |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59600126D1 (en) | 1998-04-30 |
| EP0754809B1 (en) | 1998-03-25 |
| ATE164411T1 (en) | 1998-04-15 |
| JPH0929008A (en) | 1997-02-04 |
| JP3967404B2 (en) | 2007-08-29 |
| DE29511462U1 (en) | 1995-09-28 |
| US5798038A (en) | 1998-08-25 |
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