EP1890949B1 - Apparatus for washing and/or cleaning refuse bins and/or waste containers by means of a washing/cleaning system which is arranged on a vehicle - Google Patents

Description

The invention relates to a device for washing and / or cleaning garbage cans and / or waste containers by means of a vehicle disposed on a washing IReinigungssystems, wherein at the rear of the vehicle a receiving and tilting device for cleaning tons and / or containers, a washing chamber and a nozzle carrier with rinsing heads and / or nozzle sticks is present.

The garbage cans and / or waste containers are detected by the receiving and tilting device, guided into the washing chamber and take with the lid open a downwardly facing position. In this situation, the o. G. Containers cleaned by means of a nozzle carrier on rinsing heads and / or nozzle sticks.

Such a vehicle is to be regarded as known from a variety of documents. Example describes the DE-OS 34 39 776 A1 Such a refuse container cleaning vehicle, which performs both an external and an internal cleaning of the container. Likewise, such a cleaning vehicle from the DE 93 09 815 U1 , of the DE 102 52 678 A1 , of the DE 29 01 599 , of the DE 44 04 281 C2 as well as the DE 43 14 922 C2 known.

• es wird ausschließlich Frischwasser zur Reinigung der Mülltonnen verwendet
• es findet keine Schmutzwasserreinigung statt
• die Reinigung wird mit kaltem Wasser durchgeführt
• das Reinigungswasser wird teilweise kreislaufgeführt und wird als Fäkalschlamm wieder zur Reinigung verwendet
• es werden große Mengen Trinkwasser verschwendet
• austretende belastete Aerosole beeinträchtigen die Bürger, Natur und Arbeiter

All these known solutions have the following disadvantages:

• Only fresh water is used to clean the garbage cans
• There is no dirty water cleaning
• the cleaning is done with cold water
• the cleaning water is partially circulated and is used again as a fecal sludge for cleaning
• Large amounts of drinking water are wasted
• Exiting polluted aerosols affect citizens, nature and workers

From the DE 199 20 210 C2 is a garbage cleaning vehicle known, which in addition to easy cleaning of garbage bins has a cleaning fluid circuit. Here, the running out of each cleaned garbage can and polluted cleaning liquid is freed by a filter device of their coarse components and then at least partially reused.
The cleaning of the dirty water in a single filter device may preferably be directed only to coarse components. A reuse mechanically coarsely cleaned waste water in the circulation is very problematic, since this leads to experience in a relatively short time to germ proliferation and propagation, which can be the whole process to a health-endangering device.
Should be eliminated in a single filter device all contaminants of the water, this device would be very large and to design in several stages and thus very expensive and unwieldy to accommodate a vehicle.

• die Reinigung des Schmutzwassers von Grob- und Feinbestandteilen erfolgt vorrangig durch eine Sedimentationsstation mit Schlammsammler und nachfolgendem Sammelbehälter auf der Basis der Zugabe von Flockungsmitteln
• die Zugabe von Flockungsmitteln für die Sedimentation des Schlammes erfordert den Einsatz teurer Zusatzstoffe
• die ausschließliche Schlammabtrennung durch Sedimentation erfolgt sehr langsam und ist für ein Mülltonnenreinigungsfahrzeug uneffektiv, da der sich absetzende Schlamm durch die Schaukelbewegungen des Fahrzeuges im Einsatz immer wieder aufgeschüttelt wird
• das Fahrzeug weist keine mechanischen oder elektrischen Filter auf
• die Funktionsweise der Entbakterisierungsstation soll mittels UVC-Lampen realisiert werden und ist nicht näher beschrieben
• eine Entkeimung, ist mit einer UV-Lampe allein nicht möglich, da die gelösten Stoffe, also Keime, Bakterien und Sporen das Licht reflektieren und so zu keinem brauchbaren und von den Behörden akzeptierten Ergebnis führen würde.

In addition, from the EP 0 937 510 B1 discloses a method and apparatus for washing garbage containers on a vehicle, wherein after the container cleaning in a washing station of the vehicle, the running water is collected and cleaned and fed to his service water tank for reuse. The water purification provides at least one clarification step, which is carried out after release of the container at least partially during the journey of the vehicle in at least one sedimentation station, which has a clarifier with collector. The collector is arranged at the bottom of the sedimentation and returns the withdrawn sludge to a collection container. The waste water is mixed with flocculants before it is clarified. The sludge is withdrawn after reaching a predetermined level from the collection and sludge dewatering by means of a filter press.
Furthermore, this garbage bin cleaning vehicle for the overflow of Sedimentationsstation, the passage of the water through a Entbakterisierungsstation which is interposed between the cleaning unit and the container. This debacterization station comprises at least one UVC lamp.
This solution has the following disadvantages:

• The purification of the dirty water from coarse and fine components is primarily carried out by a sedimentation station with sludge collector and subsequent collection vessel based on the addition of flocculants
• the addition of flocculants for the sedimentation of the sludge requires the use of expensive additives
• the exclusive sludge separation by sedimentation is very slow and is ineffective for a garbage bin cleaning vehicle, as the settling sludge is repeatedly shaken up by the rocking movements of the vehicle in use
• The vehicle has no mechanical or electrical filters
• the operation of the Entbakterisierungsstation is to be realized by means of UVC lamps and is not described in detail
• a sterilization, is not possible with a UV lamp alone, because the dissolved substances, so germs, bacteria and spores reflect the light and so would not lead to any useful and accepted by the authorities result.

From the WO 01/19706 is a washing vehicle for waste containers, especially bio-tons known, the vehicle has a dirt trap, a collecting space with sump for dirty water, a fine filter, a washroom for the introduction of tons and spray lances.
The vehicle has no closed water system, no buffer tank, no degerminator, no hot water treatment and no movable and freely pivoting nozzle bar for garbage bin exterior cleaning. The nozzles are rigid and can not be swiveled or extended.

The invention has for its object to overcome the disadvantages of the prior art by developing a very compact garbage bin cleaning vehicle, in which in addition to an effective and complete Innsowie cleaning the garbage cans including their lid, a gradual separation of the solid components of the dirty water - largely without the addition of Additives - is achieved in the context of a germ reduction, so that the purified water in the circulation can be driven permanently.

This is inventively achieved in that
the provided with a pump drain funnel with a buffer tank and a known fine filter having cleaning container is connected downstream of a treatment plant for sterilization and coupled to the nozzle carrier hot water tank, wherein as tube irradiation in a jacket tube and as a dipping device in the process water tank and / or arranged in the buffer tank UV irradiation device is mounted and arranged in the washing chamber in addition to the interior cleaning a pivoting nozzle device for Tonausßenreinigung.

Four circularly arranged UV lamps with a tube diameter of 150 mm over eight circularly arranged UV lamps with a tube diameter of 300 mm up to 10 circularly arranged UV lamps with a tube diameter of 400 mm, a complete UV oxidation is achieved. For this purpose, a current of min. 350 volts necessary. Furthermore, the water to be purified must permanently pass the tubes to ensure permanent sterilization.

The UV irradiation device can also be implemented by means of UV immersion lamps and arranged in the containers. The diving lights have to be installed slidably into the container from above in order to be able to adapt to the changing water level. The jet force must be min. 400 watts. There are min. Six diving lights necessary to effectively prevent germination in the process water tank.

The UV lamps are preferably each running with a longitudinally displaceable - having rubber lips - stripping executed in case of need or intermittently or constantly, to clean the UV lamps of dirt components and to keep the efficiency of irradiation constantly in the optimum range.

The UV irradiation device achieves UV oxidation necessary for complete embryo liberation.

The fine filter having the cleaning container is composed of two interconnected and connected in series chambers. The fine filter consists of two connected bag filters. The filter fineness is between 1μ and 100μ

The fine filter is designed as a bag filter and / or as a surface filter and / or as a cyclone filter. Preferably, a cyclone is used to separate the heavy suspended solids from the polluted water. Since this filter level is still too coarse, the bag filter must be set afterwards. Also conceivable is a surface filter, which has the same filter property as the bag filter, but requires more space.

The surface filter is made of stainless steel or other stainless materials such as stainless steel or PVC and has a mesh size of 1μ to 100μ.

The treatment plant for sterilization includes a biological and / or mechanical and / or electrical cleaning. The electrical variant by means of UV irradiation is the most effective due to the effectiveness.

The treatment plant for sterilization may also have a membrane filter. In this case, the membrane is constructed by a plurality of filter layers and arrangements in a stainless steel container. This is particularly advantageous if there is above-average water pollution.

Between the cleaning tank and the treatment plant and / or between the treatment plant and the service water tank and / or between the service water tank and the nozzle support a hot water treatment device is arranged, wherein the hot water treatment device to a water temperature of 50 to 70 ° C, preferably 63 ° C is operated. It is necessary to increase the temperature of the circulating water at least temporarily for at least 10 minutes to> 63 ° C in order to effectively avoid the formation of Legionella and other pathogens.

The garbage bin cleaning device should also have a Zumischanschluss for cleaning and / or disinfecting agent, which is behind the hot water treatment, to be arranged in front of the nozzle sticks. An addition of cleaning agents and / or disinfectants is always necessary when ash tons and highly greasy waste bins must be cleaned.

The cleaning and / or disinfecting agents used should preferably be made of biodegradable materials, eg. B. natural citric acid and are added in an amount of preferably from 1: 3000 - 1: 750.

The garbage bin cleaning device has a power generation system for operating all the units even when the vehicle is off, which must provide a power of 230 volts.

As a pump for the discharge funnel preferably a submersible pump is used.

The fine filter and the treatment plant is provided with a discharge device which is arranged in the bottom area with a hose for discharging the fine components into the disposal site. The particle size here is between 1 μ and 100 μ.

The pivoting nozzle device for barrel exterior cleaning is preferably to be formed as a bent or angled nozzle bar to completely clean the outer surface of the barrel.
The nozzle bar is attached to both sides of the washing chamber outer surfaces and is designed to be movable and extendable in the longitudinal direction of the vehicle, in order to be able to adapt to smaller and larger tons. The bin covers are also completely cleaned including their rear edge.

For better dissipation of solid dirt components of the bottom of the buffer tank is formed as a slope in a slope and has at the lowest point centrally on a trigger.

The receiving and tilting device for the tons has at least one, preferably two vacuum suction cups in plastic barrels and / or at least one, preferably two magnets in metal cans, which can be combined with at least one support hook.

The invention has the following advantages:

• Only very little fresh water is used for cleaning garbage cans
• the dirty water is circulated
• the waste water is completely cleaned in several stages and made germ-free via one or more irradiation devices with UV light
• A Legionella infestation is prevented by the use of a hot water treatment plant, which drives the purified water in the uncritical temperature range
• through the use of several independent filter stages there is a sustainable cleaning of the dirty water with high availability of the mobile plant
• There is (if any) only a limited sedimentation and more filtering of the dirty water
• expensive flocculants are not or only very limited application
• The entire vehicle for garbage bin cleaning is very compact
• the use of one or more UV irradiation devices both as tube irradiation with liquid flow, as well as container irradiation leads to a completely germ-free cleaning of the water
• especially the pipe irradiation is very effective, since here the dirty water is subjected in an endless cycle of permanent disinfection
• For the first time, in addition to the internal cleaning of the drums and containers, a complete exterior cleaning including the entire lid surface is carried out by means of a swiveling nozzle beam device in the washroom
• The telescopic extensibility of the nozzle bar ensures optimum adaptation to any barrel shape
• The UV lamps are cleaned by means of a separate - rubber lips having - stripper intermittently or constantly from dirt components and thus work constantly in the optimum range

Ausführungsbeisipiel

Reference to an exemplary embodiment, the invention will be explained in more detail below.

• Figur 1: das Mülltonnenreinigungsfahrzeug im Querschnitt
• Figur 2: die schwenkbare Düsenbalkenvorrichtung mit Waschkammer in der Draufsicht
• Figur 3: die schwenkbare Düsenbalkenvorrichtung mit Waschkammer im Querschnitt

Showing:

• FIG. 1 : the garbage bin cleaning vehicle in cross section
• FIG. 2 : the pivotable nozzle beam device with wash chamber in plan view
• FIG. 3 : the pivotable nozzle beam device with wash chamber in cross section

The garbage bin cleaning vehicle 1 has at its rear the recording and tilting device 2 for the garbage cans or containers 3 to be cleaned, in which the extendable nozzle carrier 4 with the rinsing / nozzle sticks 5 in the area of the washing chamber 6 retracts, after a device, not shown, the lid of the Garbage bin 1 opened automatically ( FIG. 1 ).
The washing chamber 6 has in its lower part the discharge funnel 7 with coarse filter 8 and 9 deduction and submersible pump 10.
Via the line 11, the dirty water purified by coarse components of the garbage bin cleaning is conducted into the buffer tank 12, where settling of remaining suspended matter and optionally a UV irradiation takes place. The buffer tank 12 also has a trigger 13 for the suspended matter, which is actuated after reaching a maximum level state at a disposal site.

From the buffer tank, the dirty water enters the cleaning tank 14, which has a fine screen, not shown, for the removal of fine particles of the order of 1μ and 100μ and where optionally takes place a further UV irradiation. The deduction of the fine components is carried out by a valve disposed in the bottom of the container ball valve.
After the fine cleaning, the purified water is passed for sterilization in a treatment plant 15, in which the actual UV irradiation is carried out by means of UV immersion lamps and / or possibly a further fine cleaning by means of a membrane filter, not shown.
After the water has been cleaned and completely sterilized, it is conveyed via line 16 by means of a further pump, also not shown, into the service water tank 17, from which it is pumped via the line 18 as needed to the hot water treatment plant 19. In this system, the water is heated as needed to 50 to 70 ° C, preferably proportionally at least temporarily for about 10 minutes at 63 ° C to prevent Legionella infestation. Also, some of the bacteria and germs are already killed at this temperature. From the hot water treatment plant 19, the heated water reaches the nozzle carrier 4 and the rinsing heads 5 as needed.
In the washing chamber 6 by means of lateral fasteners 21, the pivotable nozzle device 20 is arranged, which is telescopically extendable in the longitudinal direction in order to better adapt to the respective barrel shape ( Figure 2; 3 ). By this nozzle device 20, which is preferably formed bent to semicircular as a nozzle bar, but can also be performed at an angle, it is possible to perform in addition to the internal cleaning an optimal external cleaning of the tons including their entire cover. The pivotable nozzle bar device 20 for external cleaning is also supplied with circulating water from the hot water tank 17 and from the hot water tank 19.
The tilting device 2 has at least one, preferably two suction cups in plastic barrels and / or at least one, preferably two magnets in metal cans, which can be combined with at least one support hook for better fixing of the tons.

List of reference numbers used

1 -

Garbage cans cleaning vehicle

2 -

Pickup and tilting device

3 -

Garbage bin / container

4 -

nozzle carrier

5 -

Flushing head / nozzle

6 -

washing chamber

7 -

drain funnel

8th -

coarse filter

9 -

deduction

10 -

submersible pump

11 -

management

12 -

buffer tank

13 -

deduction

14 -

cleaning tank

15 -

Processing plant (degermination)

16 -

management

17 -

Water containers

18 -

management

19 -

Hot water treatment plant

20 -

pivotable nozzle bar device

21 -

lateral attachment

Claims (18)

1. A device for washing and/or cleaning refuse bins and/or waste containers by means of a washing/cleaning system arranged on a vehicle, wherein a holding and tilting device for the bins and/or containers to be cleaned, a washing chamber and a nozzle carrier with rinsing heads and/or nozzle blocks are present at the rear of the vehicle, and a draining funnel comprising a coarse filter is arranged in the washing chamber below the nozzle carrier,
   characterised in that
   the draining funnel (7) equipped with a pump (10) is connected with a buffer container (12) and with a cleaning container (14) comprising a fine filter, wherein the cleaning container (14) has a treatment plant (15) for disinfection and a service water container (17) coupled to the nozzle carrier (4) arranged downstream of it, wherein a UV radiation device is provided, which is attached in a jacket pipe for pipe radiation as an immersion device in the service water container (17) and/or in the buffer container (12) and wherein additionally to inside cleaning a pivotable nozzle device (20) is arranged in the washing chamber (6) for cleaning the outside of the bin.
2. Device according to claim 1, characterised in that a 150 mm diameter pipe has preferably 4 UV lamps, a 300 mm diameter pipe has preferably 8 UV lamps and a 400 mm diameter pipe has preferably 10 UV lamps arranged inside the jacket pipe.
3. Device according to claims 1 and 2, characterised in that the UV radiation device is implemented by means of UV lamps and is optionally arranged inside the containers (12; 14; 7).
4. Device according to claims 1 to 3, characterised in that the UV lamps are each implemented with a longitudinally movable, rubber-lips-comprising wiper device, which wiper device is operable at intervals or constantly.
5. Device according to claims 1 to 4, characterised in that the UV radiation device is implemented in the form of UV oxidation.
6. Device according to claim 1, characterised in that the fine filter is implemented as a bag filter and/or as a sheet filter and/or as a cyclone filter.
7. Device according to claim 6, characterised in that the sheet filter is constructed of stainless steel or other rust-free materials and comprises a mesh width of between 1 µ and 100 µ.
8. Device according to claim 1, characterised in that the treatment plant (15) for disinfection comprises biological and/or mechanical and/or electrical cleaning.
9. Device according to claim 1, characterised in that the treatment plant (15) for disinfection comprises a membrane filter.
10. Device according to claims 1 to 9, characterised in that a hot water preparation device (19) is arranged between the cleaning container (14) and the treatment plant (15) and/or between the treatment plant (15) and the service water container (17) and/or between the service water container (17) and the nozzle carrier (4).
11. Device according to claim 10, characterised in that the hot water preparation device (19) is set to a water temperature of between 50 and 70°C, preferably 63°C, wherein the water temperature of the circulating water is to be raised proportionally to a value of >63°C for at least 10 minutes.
12. Device according to claims 1 to 11, characterised in that the vehicle (1) comprises a connection for adding cleaning and/or disinfecting agents which may be arranged downstream of the hot water preparation device (19) and upstream of the nozzle carrier (4).
13. Device according to claim 12, characterised in that the cleaning and/or disinfecting agents used are composed of biologically degradable substances and may be added at an amount preferably between 1 : 1,3000 and 1 : 750.
14. Device according to claims 1, 11 and 12, characterised in that the cleaning and disinfecting agent used is citric acid.
15. Device according to claims 1 to 14, characterised in that the vehicle (1) comprises a current generation plant.
16. Device according to claim 1, characterised in that the pivotable nozzle device (20) is implemented as a nozzle bar.
17. Device according to claim 16, characterised in that the nozzle bar is fixed to the side walls of the washing chamber (6) by means of lateral attachments (21).
18. Device according to claims 16 and 17, characterised in that the nozzle bar is movable and/or telescopically extendable in longitudinal direction of the cleaning vehicle (1).

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