EP0754809A1 - Dispositif pour extraire des matériaux séparables d'un liquide contenu dans une rigole - Google Patents

Dispositif pour extraire des matériaux séparables d'un liquide contenu dans une rigole Download PDF

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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
Application number
EP96110638A
Other languages
German (de)
English (en)
Other versions
EP0754809B1 (fr
Inventor
Hans Georg Huber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huber SE
Original Assignee
Hans Huber AG Maschine und Anlagenbau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hans Huber AG Maschine und Anlagenbau filed Critical Hans Huber AG Maschine und Anlagenbau
Publication of EP0754809A1 publication Critical patent/EP0754809A1/fr
Application granted granted Critical
Publication of EP0754809B1 publication Critical patent/EP0754809B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

Landscapes

  • 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)
  • Processing Of Solid Wastes (AREA)
  • Cyclones (AREA)
  • Refuse Collection And Transfer (AREA)
EP96110638A 1995-07-15 1996-07-02 Dispositif pour extraire des matériaux séparables d'un liquide contenu dans une rigole Expired - Lifetime EP0754809B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29511462U DE29511462U1 (de) 1995-07-15 1995-07-15 Vorrichtung zum Entfernen von Abscheidegut aus einer in einem Gerinne strömenden Flüssigkeit
DE29511462U 1995-07-15

Publications (2)

Publication Number Publication Date
EP0754809A1 true EP0754809A1 (fr) 1997-01-22
EP0754809B1 EP0754809B1 (fr) 1998-03-25

Family

ID=8010576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96110638A Expired - Lifetime EP0754809B1 (fr) 1995-07-15 1996-07-02 Dispositif pour extraire des matériaux séparables d'un liquide contenu dans une rigole

Country Status (5)

Country Link
US (1) US5798038A (fr)
EP (1) EP0754809B1 (fr)
JP (1) JP3967404B2 (fr)
AT (1) ATE164411T1 (fr)
DE (2) DE29511462U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19744524C2 (de) * 1997-10-09 2003-11-20 Hans Huber Ag Masch & Anlagenb Siebvorrichtung für in einem Zulaufrohr ankommendes Abwasser
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 (de) * 2002-02-05 2003-08-21 Kone Corp Einrichtung zum Beheizen von Rolltreppen oder Rollsteigen
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 (de) * 2003-04-04 2006-03-16 Hans Huber Ag Maschinen- Und Anlagenbau Vorrichtung zum Entfernen von feinem Siebgut aus einer Flüssigkeit
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH341477A (fr) * 1956-07-24 1959-10-15 Goriot Emmanuel Filtre-presse à marche continue
DE3614666A1 (de) * 1986-04-30 1987-11-05 Hans Roesch Recheneinrichtung fuer klaeranlagen
FR2642326A1 (fr) * 1989-01-11 1990-08-03 Linco Sa Dispositif d'epuration/filtration d'un melange fluide d'un composant a separer d'impuretes, notamment pour installation de plumage a la cire
DE4042167A1 (de) * 1989-12-29 1991-07-11 Huber Hans Georg Vorrichtung zur entnahme von rechengut aus in einem gerinne stroemender fluessigkeit einer klaeranlage
DE9113055U1 (de) * 1991-06-28 1992-02-13 Huber, Hans Georg, 92334 Berching Langsandfang zum Abscheiden und Entfernen von Sand aus Zulaufgerinnen, insbesondere von Kläranlagen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
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 (de) * 1986-09-10 1988-03-24 Huber Hans Georg Vorrichtung zum entfernen von rechen- und/oder siebgut aus in einem gerinne stroemender fluessigkeit
DE3716434C1 (de) * 1987-05-16 1988-12-08 Hans-Georg Huber Vorrichtung zum Entfernen von Rechen- und/oder Siebgut aus in einem Gerinne stroemender Fluessigkeit
DE3910389C1 (fr) * 1989-03-31 1990-08-30 Hans-Georg Dipl.-Ing. 8434 Berching De Huber
DE3942561C1 (fr) * 1989-08-22 1991-01-10 Hans-Georg Dipl.-Ing. 8434 Berching De Huber
DE4143376C2 (de) * 1991-06-28 1994-12-15 Hans Georg Huber Kompaktanlage zum Abscheiden und Entfernen von Rechengut und Sand aus Zulaufgerinnen
US5207904A (en) * 1991-07-15 1993-05-04 396234 B C Ltd. Apparatus for composting waste material
DE4211657C1 (fr) * 1992-04-07 1993-07-01 Hans Huber Gmbh, 8434 Berching, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH341477A (fr) * 1956-07-24 1959-10-15 Goriot Emmanuel Filtre-presse à marche continue
DE3614666A1 (de) * 1986-04-30 1987-11-05 Hans Roesch Recheneinrichtung fuer klaeranlagen
FR2642326A1 (fr) * 1989-01-11 1990-08-03 Linco Sa Dispositif d'epuration/filtration d'un melange fluide d'un composant a separer d'impuretes, notamment pour installation de plumage a la cire
DE4042167A1 (de) * 1989-12-29 1991-07-11 Huber Hans Georg Vorrichtung zur entnahme von rechengut aus in einem gerinne stroemender fluessigkeit einer klaeranlage
DE9113055U1 (de) * 1991-06-28 1992-02-13 Huber, Hans Georg, 92334 Berching Langsandfang zum Abscheiden und Entfernen von Sand aus Zulaufgerinnen, insbesondere von Kläranlagen

Also Published As

Publication number Publication date
ATE164411T1 (de) 1998-04-15
JPH0929008A (ja) 1997-02-04
DE29511462U1 (de) 1995-09-28
US5798038A (en) 1998-08-25
DE59600126D1 (de) 1998-04-30
EP0754809B1 (fr) 1998-03-25
JP3967404B2 (ja) 2007-08-29

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