EP0769593A1 - Procédé et dispositif pour nettoyer des caniveaux - Google Patents

Procédé et dispositif pour nettoyer des caniveaux Download PDF

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Publication number
EP0769593A1
EP0769593A1 EP96115605A EP96115605A EP0769593A1 EP 0769593 A1 EP0769593 A1 EP 0769593A1 EP 96115605 A EP96115605 A EP 96115605A EP 96115605 A EP96115605 A EP 96115605A EP 0769593 A1 EP0769593 A1 EP 0769593A1
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EP
European Patent Office
Prior art keywords
dirt
water
holding space
floating
dirt holding
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
EP96115605A
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German (de)
English (en)
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EP0769593B1 (fr
Inventor
Karl Wiedemann
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Individual
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Individual
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26019590&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0769593(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE1995138848 external-priority patent/DE19538848B4/de
Application filed by Individual filed Critical Individual
Publication of EP0769593A1 publication Critical patent/EP0769593A1/fr
Application granted granted Critical
Publication of EP0769593B1 publication Critical patent/EP0769593B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/103—Wheeled apparatus for emptying sewers or cesspools with a tank featuring one or more partition walls
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a method of the type specified in the preamble of claim 1 and, according to a further inventive concept, relates to a device of the type specified in the preamble of claim 7.
  • the dirt sucked out of the sewer during sewer cleaning is a mixture of sediments, essentially consisting of sand and floating materials, such as faeces, digested sludge, paper etc.
  • the sediments sediment ie settle on the sewer floor and narrow the sewer cross-section. It is therefore desirable to remove the sediments. Up to now, this has required expensive disposal, since simple dumping or reuse as building material, etc., is not possible due to contamination with faeces, etc. This adversely affects the overall cost of the Sewer cleaning and thus the overall economy.
  • the procedural solution is that the sucked up dirt is separated into suspended matter and floating matter, that the floating matter is returned to the channel and that the suspended matter freed from the floating matter is removed.
  • the materials contained in the vacuumed up dirt which are harmless for clogging the channel cross section, are returned to the channel.
  • the sediments since the sediments are retained, the previously achieved cleaning effect is not impaired by the recycling mentioned.
  • the sand which essentially constitutes the sediment, is present in a purified form and can easily be stored in a landfill or preferably used as recycling material in the construction industry or as a litter in winter etc. The measures according to the invention therefore make it possible to achieve high economic efficiency in sewer cleaning, etc.
  • the device-based solution consists in that a dirt-receiving space is designed as a treatment room provided with a flotation device, which can be acted upon with clean water when the flotation device is activated, which is separated by an overflow weir from an adjacent return chamber which, like the dirt-receiving space, can be connected to a water dispensing device, one for Float-permeable drain opening is provided.
  • the flotation device can have a device for introducing compressed air into the water containing the absorbed dirt, as a result of which air flotation is effected.
  • a movement device can be provided, by means of which the content of the dirt holding space can be set into strong movement.
  • the dirt holding room fulfills a double function here as a storage room and treatment room.
  • the air flotation or movement device cause the floating substances to be separated from the suspended matter and to rise to the top.
  • the supply of clean water during this separation treatment leads to a rapidly increasing purity of the material remaining in the treatment room. Since clean water is continuously supplied during the separation treatment, the ascending floating substances can simply flow into the neighboring one with the overflowing water after the water level has reached the height of the overflow weir Float the return chamber. Until the weir height is reached, a comparatively large part of the floating layer to be removed contains floating matter, so that there is a comparatively high concentration of floating matter in the return chamber. The return chamber can therefore be comparatively compact even with discontinuous emptying.
  • the measures according to the invention also enable a comparatively simple control of the cleaning progress from the outside. To do this, only the degree of purity of the water flowing out of the return chamber has to be observed.
  • the high degree of purity of the material remaining in the dirt holding space advantageously not only enables reuse or simple disposal. Rather, intermediate storage in containers that can be set up in the vicinity of the place of use, that is to say in residential areas, etc., without odor nuisance, etc., is thus possible, which can further increase the economy of the device according to the invention by avoiding long travel times.
  • Another advantage is that the volume is reduced as a result of cleaning, so that the available capacity is sufficient for large channel sections to be cleaned.
  • the sewer cleaning vehicle on which FIGS. 1 to 7 are based contains a container arrangement which is accommodated on a vehicle chassis 1 and has at least one barrel 2 arranged in the center. This is arranged in such a way that opposite tilting movements with a raised rear or front end are possible. This enables rocking movements to be carried out.
  • the container arrangement is pivotally received in the region of its front and rear end on lifting devices 3, here inform of lifting cylinders articulated on the vehicle chassis 1.
  • a reel 4 is provided with a standing axis, on which a pressure-resistant, insich movable suction hose 5 can be accommodated, the front end of which can be lowered into the channel to be cleaned and the reel-side end of which is provided with a thrust neck 6 opening into the barrel 2 via a rotating union. This can be closed by a hinged lid 7 opening in the direction of insertion.
  • the barrel 2 is assigned an air pump 8 arranged on the chassis 1, which can be operated as a vacuum pump and as a pressure pump.
  • a sewer cleaning vehicle of the present type also contains a high-pressure pump, through which a pressure hose which can be lowered into the sewer to be cleaned and which is provided with a cleaning nozzle at the front end is supplied with rinsing water, which is not shown in the drawing for reasons of clarity.
  • the interior of the drum 2 is evacuated to suck up dirt.
  • This operating state is based on FIG. 1.
  • the dirt loosened by the rinsing water is sucked out of the channel, as indicated at 9, and thrown into the barrel 2 via the insertion nozzle 6, as indicated at 10.
  • the absorbed material is a mixture of water, sand etc., ie sediments that narrow the cross-section of the sewer, and contaminants such as faeces, paper, digested sludge, etc., ie floating materials.
  • the water and the contaminants are returned to the sewer.
  • the absorbed sediments that can clog the canal are discharged or reused. However, this requires cleaning, which leads to a complete removal of the impurities.
  • the interior of the barrel 2 is divided by an overflow weir 11 into a dirt-receiving space 12 and into an adjacent return chamber 13.
  • the overflow weir 11 is provided in the region of the front end of the barrel 2 in the direction of travel, so that the dirt holding space 12 is substantially larger than the return chamber 13.
  • a pipe stub 14 terminating in this is provided, which is provided with a shut-off element 15.
  • a line stub 16 leading away from the return chamber 13 is provided, which is provided with a shut-off element 17. It is conceivable that the line connection piece form simple outlet connection pieces for an outflow of water due to gravity.
  • the pipe socket 14, 16 is a suction socket of a pump.
  • the line connections 14, 16 are connected to the insertion connection 6, which enables the water to be pressed off and returned via the suction hose 5 by pressurizing the interior of the barrel.
  • the air pump 8 is used as a compressor.
  • the shut-off elements 15, 17 of the line stubs 14, 16 are closed.
  • the lid 7 of the insertion 6 is opened by the negative pressure in the interior of the barrel 2.
  • the shut-off device 15 of the line connector 14 ending in the dirt-receiving space 12 is opened and the interior of the barrel is pressurized in the manner already indicated above. This operating state is based on FIG. 2.
  • the cover 7 of the insertion nozzle 6 is closed and the liquid contained in the dirt-receiving space 12 is returned to the channel via the line nozzle 14, the insertion nozzle 6 and the suction hose 5, as indicated in FIG. 2 by flow arrows 18.
  • the dirty water is returned directly to the sewer.
  • the container arrangement can have a water tank or water tanks 19 flanking or partially encompassing the barrel 2, here assembled with the barrel 2.
  • the inlet cross-section of the pipe socket 14 is located near the floor.
  • the barrel 2 is therefore expediently raised at its rear end in order to press off the water, as shown in FIG. This results in a depression associated with the inlet cross-section of the line connector 14, which enables extensive drainage.
  • the barrel 2 is provided with a bottom step forming a niche 20 for associated units, such as the air pump 8, etc. In this step, which practically represents the deepest area of the barrel, the pipe socket 14 protrudes.
  • the inlet of the pipe socket 14 can be provided with a sieve through which solids, in particular stones, etc., can be retained. However, this is often not necessary.
  • the contents of the dirt holding space 12 are washed open with clean water. It will be useful Drain dirty water as described above. However, it would also be conceivable to dispense with this and to gradually dilute and displace the dirty water by the supplied clean water.
  • the clean water is brought in by sharp jets, causing the contents of the dirt-receiving space 12 to be set in turbulent motion.
  • a tube 21 is provided which extends from the above-mentioned step to the rear end of the barrel, which has lateral radial bores 22 and can be supplied with clean water via a feed line 23. This can be tap water taken from the mains via a hydrant. To increase the pressure, this can be carried out via the high-pressure pump 24 provided on the vehicle, here adjacent to the air pump 8.
  • the tube 21 is designed as a shaft of a screw conveyor 25, which leads from the step provided in the front barrel area to an ejection opening 27 provided at the rear barrel end and closable by means of a cover 26.
  • the screw conveyor 25 can be driven by means of a drive motor 28 provided in the area of the recess 20.
  • a reversing drive can expediently take place, as indicated in FIGS. 3 and 4 by directional arrows.
  • the barrel 2 as can best be seen from FIG. 4, has a cross-section which narrows downwards in the shape of a funnel, so that there is a conveyor trough 29 assigned to the screw conveyor 25.
  • the bores 22 of the tube 21 form nozzle bores, which generate sharp jets, indicated at 30 in FIG. 4, which in turn can cause the contents of the dirt-receiving space 12 to become very turbulent.
  • the screw conveyor 25 can be driven in a reversing manner during the cleaning process.
  • the jets 30 have the effect that a blockage of the screw conveyor 25 by sand etc. is removed.
  • the drive of the screw conveyor 25 therefore expediently only starts somewhat after the water has been applied to the tube 21.
  • the barrel 2, as indicated in FIG. 5 can be set into rocking movements by means of the lifting devices 3. Characterized in that the barrel 2 front and rear lifting devices 3 are assigned, it is possible to alternately raise and lower front and rear. This can be done intermittently to increase turbulence.
  • the content of the dirt-collecting space 12 is acted upon by air, which, as indicated by flow arrows 31 in FIG. 4, rises from bubbles and thus improves the desired flotation.
  • air distribution lines 31 which are continuous in the longitudinal direction and which, via an alternative to pressurizing the interior of the barrel, to the air pump 8 connectable line 32 can be acted upon with compressed air.
  • side branch lines 33 run close to the wall, which end open here in the region of the conveyor trough 29 assigned to the screw conveyor 25 to form blow-out nozzles.
  • the branch lines 33 can be provided with radial bores.
  • the rising air takes up the floating substances released by the turbulence within the suspended dirt from the sand etc. Accordingly, these are deposited in a floating layer floating on the water level, indicated at 32 in FIG. 4. To break up sewage sludge molecules, etc., it may be advisable to add a flocculant at the beginning and / or during the cleaning process.
  • the floating layer 34 floats over the overflow edge of the overflow weir and reaches the return chamber 13 adjacent to the sludge receiving space 12. This is the basis of FIG. 6.
  • the overflow is indicated by an arrow 35.
  • the barrel can be raised in the region of its rear end opposite the overflow weir 11, as indicated in FIG. 6. In the case of the rocking movements mentioned above, this occurs from time to time automatically, ie the descent process is repeated at certain intervals. A new floating layer can form while the barrel 2 is raised at the front.
  • the return chamber 13 must be emptied from time to time.
  • the contents of the return chamber 13 can simply be drained or pumped out by gravity.
  • it is pulled off via the line connector 16.
  • the shut-off device 17 is opened and the interior of the drum is pressurized by means of the air pump 8.
  • the content of the return chamber flows back into the channel via the line connection 16, the insertion connection 6 and the suction hose 5, as indicated in FIG. 6 by directional arrows 36.
  • the line connector 16 is arranged in the dirt holding space 12 and is attached to a bottom opening of the overflow weir 11 with a bend.
  • the entrance cross section is designed so that the floating substances are not retained.
  • the input cross section of the line connection piece 16 is expediently not protected, but is simply designed as an open pipe cross section.
  • the ejection opening 27 is opened and the screw conveyor is driven accordingly.
  • the screw conveyor 25 acts as a clearing element arranged in the lower, trough-shaped area of the dirt holding space 12, which due to the funnel-shaped cross-sectional configuration of the dirt receptacle 2 automatically slides sand backwards and ejects it through the discharge opening 27. It would be conceivable to simply throw the sand onto the ground at a suitable point along a longer strand. This can be the case, for example, in the case of a landfill.
  • a container 37 is provided, in which the sand brought out of the dirt holding space 12 can be received. Since this has been cleaned and accordingly cannot represent any significant odor nuisance, it is possible to set up such a container 37 also in residential areas etc., that is to say in the vicinity of the place of use of the sewer cleaning vehicle according to the invention. It is then possible to use the sewer cleaning vehicle for a long time without significant travel times and to drive the containers 37 with other suitable vehicles. As a precaution, a disinfectant can be added to the sand before it is applied.
  • a conveying element 38 which adjoins the ejection opening 27 and projects to the rear is provided, by means of which comparatively high containers can also be overlapped and correspondingly well filled.
  • the barrel 2 is raised at its rear end for emptying, as indicated in Figure 7, whereby the Throwing edge of the conveyor member 38 also rises.
  • the attached conveyor member 38 is designed as a screw conveyor, which has a housing tube 29 which can be attached to the nozzle containing the ejection opening 27 and in which a screw 40 is arranged instead of the cover 26. This can be coupled to the inner screw 25.
  • the attachable conveying element 38 has its own drive motor 41.
  • the rearwardly projecting conveyor member 38 is removed and stowed in an associated compartment provided on the vehicle, for example below the barrel 2. It would also be conceivable, however, to design the conveying member 39 only to be pivotable or to leave it in position. Of course, a conveyor belt etc. could also be provided instead of a screw conveyor to form the rearward projecting conveyor member.
  • FIGS. 1 to 7 air flotation is used to separate the floating and sinking substances, which is supported by the action of the reversing screw conveyor 25, by the action of the movement of the container arrangement and by the action of the water jets.
  • air flotation is also possible to set the container contents in very strong motion only by means of a rotor, etc., and to a To waive air flotation.
  • FIGS. 8 and 9 Such an arrangement is based on FIGS. 8 and 9.
  • FIGS. 8 and 9 corresponds to the arrangement according to FIGS. 1 to 7.
  • the differences are primarily described, the same reference numerals being used for the same parts as above.
  • the front lifting device 3 is designed as a long tilting cylinder, by means of which the barrel 2 for emptying the dirt-receiving space 12 can be raised at the front to such an extent that the content of the dirt-receiving space 12 falls out via the rear opening released when the pivoting cover 45 is pivoted off.
  • An additional, rear lifting device 3 of comparatively short design can be provided in order to make it easier to swim away the floating layer and / or to be able to rock the dirt holding space 12.
  • the rear lifting device 3 engages on the rear area of the Barrel 2 under scaffolding 44 provided with a support shell.
  • the cross section of the barrel 2 is in the area of the dirt holding space 12, as FIG. 9 further shows circular, so that the clear width increases rapidly starting from the lower part of the vertex.
  • a stirring device 46 is provided, by means of which the contents of the dirt holding space 12 can be set into strong movements. These movements cause the floating substances to separate from the suspended matter.
  • the sediments sediment that is to say are deposited on the bottom side, while the floating substances are supported upwards by the agitated movement in the dirt holding space 12 and form the floating layer 34 indicated in FIG.
  • the stirring device 46 here consists of a rotor 47 arranged approximately at half the length of the dirt holding space 12. Of course, several rotors, etc., which are expediently evenly distributed over the length of the dirt holding space 12, could also be provided.
  • the rotor 46 is arranged with the rotor axis stationary in the lower, bottom-side region of the dirt holding space 12.
  • the rotor 47 is expediently designed like a propeller.
  • the rotor 47 can have propeller blades 48 projecting radially from a central hub in the manner of a propeller.
  • propeller blades 48 designed as paddles are provided.
  • the paddle surfaces 49 can expediently be set up in such a way that the contents of the dirt holding space 12 are informed of upward impulses.
  • the central hub of the rotor 47 is seated on a drivable shaft 50.
  • the drive motor 51 assigned to the shaft 50 can be a hydraulic motor be formed, which can be connected to the on-board hydraulics usually present in sewer cleaning vehicles.
  • the drive motor 51 is flanged to the bottom of the barrel 2 in the example shown.
  • the shaft 50 is passed through the wall of the barrel 2.
  • the stirring device 46 is put into operation, in this case the rotor 47 is set in rotation and, at the same time, the dirt-receiving space 12 is subjected to rinsing water in the form of clean tap water. It is advisable to pump off the dirty water beforehand.
  • two rinsing water nozzles 52 are introduced into the rinsing water nozzles 52 which are introduced into the front and rear of the chamber and which are subjected to pressurized rinsing water. This can be removed directly from a hydrant if the pressure in the water supply network is sufficient.
  • the pressure of the flushing water is increased by the on-board high-pressure pump 24.
  • the supplied rinsing water supports the movements of the container contents and at the same time leads to an increase in the liquid level in the dirt holding space 12 up to the level of the overflow edge of the overflow weir 11.
  • the floating layer 34 As soon as the floating layer 34 is formed and has reached the height of the overflow weir 11, the floating layer 34 is brought into the return chamber 13 for swimming, from where the overflowing water and the floating substances are returned to the channel via the discharge opening 16a.
  • the drain opening 16a is accordingly permeable to floating substances.

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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)
  • Removal Of Floating Material (AREA)
  • Cleaning In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Paper (AREA)
  • Physical Water Treatments (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP96115605A 1995-10-19 1996-09-28 Procédé et dispositif pour nettoyer des caniveaux Expired - Lifetime EP0769593B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1995138848 DE19538848B4 (de) 1995-10-19 1995-10-19 Verfahren und Vorrichtung zur Reinigung von Kanälen etc.
DE19538848 1995-10-19
DE1995140756 DE19540756B4 (de) 1995-10-19 1995-11-02 Verfahren und Vorrichtung zur Reinigung von Kanälen etc.
DE19540756 1995-11-02

Publications (2)

Publication Number Publication Date
EP0769593A1 true EP0769593A1 (fr) 1997-04-23
EP0769593B1 EP0769593B1 (fr) 1999-06-02

Family

ID=26019590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115605A Expired - Lifetime EP0769593B1 (fr) 1995-10-19 1996-09-28 Procédé et dispositif pour nettoyer des caniveaux

Country Status (4)

Country Link
EP (1) EP0769593B1 (fr)
AT (1) ATE180856T1 (fr)
ES (1) ES2133873T3 (fr)
GR (1) GR3031138T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999046452A1 (fr) 1998-03-11 1999-09-16 Franz Janssen Dispositif d'epuration de canalisations
EP0959187A1 (fr) * 1997-04-16 1999-11-24 Karl Wiedemann Dispositif pour prélever et traiter de la boue
CN110629818A (zh) * 2019-09-24 2019-12-31 山东路得威工程机械制造有限公司 一种真空开挖机带浮动吊臂的伸臂机构
CN112282037A (zh) * 2020-09-16 2021-01-29 南京驭逡通信科技有限公司 一种市政管道淤泥清洁机器人

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004017678B4 (de) * 2004-04-10 2012-12-06 Karl Wiedemann Vorrichtung zur Fraktionierung eines organische und mineralische Stoffe enthaltenden Substrats

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609178A1 (de) * 1964-01-08 1970-01-22 Ing Fritz Zellinger Verfahren zum Transport von sedimentierenden Aufschwemmungen und Transportfahrzeug zur Durchfuehrung dieses Verfahrens
USRE27346E (en) * 1970-07-27 1972-04-25 Tank unit for receiving and transporting sewer solids
DE3313635A1 (de) * 1983-04-15 1984-10-18 Kuka Umwelttechnik GmbH, 8900 Augsburg Verfahren zum absaugen von schlammwasser o.dgl. und vorrichtung zur ausfuehrung desselben
DE4106088A1 (de) * 1990-03-08 1991-09-12 Josef Kaiser Saugdruckfass
DE4328196A1 (de) * 1993-08-21 1995-02-23 Schenkel Hans Joachim Einrichtung zum Entsorgen des Inhalts von Öl- oder Benzinabscheidern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609178A1 (de) * 1964-01-08 1970-01-22 Ing Fritz Zellinger Verfahren zum Transport von sedimentierenden Aufschwemmungen und Transportfahrzeug zur Durchfuehrung dieses Verfahrens
USRE27346E (en) * 1970-07-27 1972-04-25 Tank unit for receiving and transporting sewer solids
DE3313635A1 (de) * 1983-04-15 1984-10-18 Kuka Umwelttechnik GmbH, 8900 Augsburg Verfahren zum absaugen von schlammwasser o.dgl. und vorrichtung zur ausfuehrung desselben
DE4106088A1 (de) * 1990-03-08 1991-09-12 Josef Kaiser Saugdruckfass
DE4328196A1 (de) * 1993-08-21 1995-02-23 Schenkel Hans Joachim Einrichtung zum Entsorgen des Inhalts von Öl- oder Benzinabscheidern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0959187A1 (fr) * 1997-04-16 1999-11-24 Karl Wiedemann Dispositif pour prélever et traiter de la boue
WO1999046452A1 (fr) 1998-03-11 1999-09-16 Franz Janssen Dispositif d'epuration de canalisations
CN110629818A (zh) * 2019-09-24 2019-12-31 山东路得威工程机械制造有限公司 一种真空开挖机带浮动吊臂的伸臂机构
CN112282037A (zh) * 2020-09-16 2021-01-29 南京驭逡通信科技有限公司 一种市政管道淤泥清洁机器人

Also Published As

Publication number Publication date
ES2133873T3 (es) 1999-09-16
ATE180856T1 (de) 1999-06-15
EP0769593B1 (fr) 1999-06-02
GR3031138T3 (en) 1999-12-31

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