EP0318074B2 - Vorrichtung zum Reinigen von Startbahnen - Google Patents

Vorrichtung zum Reinigen von Startbahnen Download PDF

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Publication number
EP0318074B2
EP0318074B2 EP88202385A EP88202385A EP0318074B2 EP 0318074 B2 EP0318074 B2 EP 0318074B2 EP 88202385 A EP88202385 A EP 88202385A EP 88202385 A EP88202385 A EP 88202385A EP 0318074 B2 EP0318074 B2 EP 0318074B2
Authority
EP
European Patent Office
Prior art keywords
filter
water
bag
nozzles
cyclone
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.)
Expired - Lifetime
Application number
EP88202385A
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English (en)
French (fr)
Other versions
EP0318074B1 (de
EP0318074A1 (de
Inventor
Henry Marie Hermans
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.)
A HAK INTERNATIONAL BV
Original Assignee
A HAK INTERNATIONAL BV
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19850991&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0318074(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by A HAK INTERNATIONAL BV filed Critical A HAK INTERNATIONAL BV
Priority to AT88202385T priority Critical patent/ATE62291T1/de
Publication of EP0318074A1 publication Critical patent/EP0318074A1/de
Publication of EP0318074B1 publication Critical patent/EP0318074B1/de
Application granted granted Critical
Publication of EP0318074B2 publication Critical patent/EP0318074B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • E01H1/103—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers in which the soiled loosening or washing liquid is removed, e.g. by suction

Definitions

  • the invention relates to a device for cleaning a flat surface with powerful water jets, in particular for removing rubber from runways, comprising one or more nozzles which are connected by means of a pipe to a source of pressurized water, a circulation system which is movable with the nozzles, said system being at least provided with a water tank, a pump unit connected thereto for raising the water to high pressure, a hood with suction line fitted around the nozzles, filter means for removing solids from the water extracted from the hood said filter means including filter means for coarse particles and filter means for small particles, a return pipe to the tank and a cyclone.
  • Such a device is known from DE-A-3538539.
  • Another known method is to remove the rubber deposit using powerful water jets which are directed at the runway from nozzles at a distance of about 60 cm.
  • the pressure used is, for example, about 400 bars and water consumption is 70 to 100 litres of water per minute.
  • the water polluted with rubber particles goes into the environment, so that this method also is harmful to the environment.
  • Other disadvantages are that water consumption is high and control is so imperfect that there is a great risk of the asphalt surface being damaged.
  • the device disclosed in DE-A-3538539 comprises flotation means for removing small particles.
  • These flotation means include a collecting tank for pre-cleaned liquid, two flotation tanks, a bag-type filter for receiving stripped-off skim and a tank for taking up rest water.
  • the five tanks are space consuming and heavy. Further very small particles cannot be removed efficiently.
  • the vehicle on which the device is mounted is very heavy and big and a lot of liquid must be present.
  • the aim of the invention is to provide a cleaning device according to the preamble which is relatively light and small, which works with a small water volume, which has a small water consumption, which prevents filter clogging by coarse rubber lumps and which enables the user to clean the filter for removing very small particles by flushing.
  • a very high water pressure is used which means a pressure of the order of 1,800 to 2,400 bars.
  • Less than 25 litres per minute is sprayed onto the runway.
  • the re-circulation means that the rubber passes into filters and quite a considerable quantity of the water sprayed onto the runway is returned to the tank.
  • the water consumption is therefore only about one quarter of the water consumption with the water jet method without re-circulation. Since most of the water is removed from the runway, the latter is always available for emergency landings.
  • the tank can be made relatively small and can be carried on a vehicle with the nozzles.
  • the brochure "Das Atümat-System für die Kanalgraphy" of the firm Woma Apparatebau Wolfgang Maasberg & Co, GmbH, 4100 Duisberg 14 in Germany discloses a device for cleaning a sewer with powerful water jets, comprising a number of nozzles connected by a high pressure hose to a source of pressurized water, a suction hose, a circulating system provided with a water tank, a pump unit for raising the water to high pressure, and filter means for removing solids from the water including a first filter step being a pushing plate for pushing the solids together, a second filter step being a screening chamber, a third filter step being a suction filter, a fourth filter step being a cyclone filter and a fifth filter step being a fine filter.
  • This known device is not suitable for removing rubber from runways since the big rubber pieces would lead to clogging of the filter system.
  • the bag-type filters for removing parts bigger than 3 ⁇ m are located downstream of the cyclone and the activated carbon filter is located downstream of the bag-type filters.
  • the bag-type filters have to be replaced periodically, and in order to do this without interrupting the working of the device, two or more bag-type filters are disposed in parallel and valves are present in the pipes to the bag-type filters.
  • the high-pressure pump is designed as an intensifier provided with a hydraulically driven plunger system which converts relatively low pressure and high delivery into very high pressure and low delivery into very
  • a high suction output as regards the water in the nozzle hood is achieved if the suction hose opens out tangentially into the hood fitted around the nozzles.
  • a number of nozzles will be disposed on a rotary vertical shaft.
  • the high-pressure pump (intensifier) must be protected from solids being washed out of the tank.
  • a duplex filter is therefore provided in the connection between the water tank and high-pressure pump.
  • Fig. 1 shows a schematic view of the device according to the invention.
  • Figs. 2, 3 and 4 show a side view, a top view and a cross section respectively of the hood in which the jet nozzles are disposed.
  • the device shown is intended for cleaning flat surfaces. Its particular object is to remove rubber deposits caused by aircraft tyres on airport runways. Use is made of powerful water jets which are directed towards the ground at a distance of about 15 cm from the ground.
  • the two nozzles are indicated by 1 in Fig. 4. They are each disposed on the end of a pipe 2 which is connectecd to a central hollow shaft 3, which can be rotated by means of a drive mechanism 4.
  • the nozzles are located in a round hood 5 into which a suction line 6 opens tangentially.
  • Fig. 1 shows schematically the whole device with the pressure generator, filters and recirculation systems. This device is placed on a vehicle which can also carry the hood 5 with nozzles.
  • the filter and recirculation system can be placed on a separate vehicle which follows the vehicle 7 on which the hood 5 is mounted.
  • the suction line 6 of the hood 5 is connected to a suction hose 8 which leads to a cyclone 9.
  • Compressed air produced by a compressor 13 can be conveyed through line 14 to the cabinet 10 opposite the venturi fittings 12, vacuum being created in the top part of the cyclone.
  • the purpose of this vacuum is to carry the soiled water through the hose 8 to the cyclone and in conjunction with the functioning of the cyclone to separate off the soiled water.
  • a diaphragm pump 16 is connected by means of a line 17 to the discharge side and by means of a line 18 to the inlet side of the filter 15.
  • a ball valve 19, 20 is provided in each of the lines 17, 18.
  • the diaphragm pump 16 is connected to bag-type filters 22 and 23 by means of line 21 and two branches 21a and 21b.
  • a valve 24a, 24b is fitted in each of the branches.
  • the soiled water coming from the cyclone is pumped by the pump 16 to one of the bag-type filters 22, 23, in which particles larger than 3 ⁇ m are recovered.
  • a line 25 connects the discharge side of the bag-type filters to a diaphragm pump 26, which is connected by means of line 27 to a sand activated carbon filter 28.
  • the discharge side of said filter is connected by means of a line 29 to a water tank 30.
  • the fine particles are removed in the filter 28 from the water from which the coarse material has been removed, and the cleansed water flows back into the tank 30.
  • water flows through pipe 31 to a hydraulically driven variable displacement pump 32 (intensifier) for the generation of ultra-high pressure (for example, 2,200 bars), while a duplex filter 33 is placed in the line 31.
  • a hydraulically driven variable displacement pump 32 intensifier
  • ultra-high pressure for example, 2,200 bars
  • a duplex filter 33 is placed in the line 31.
  • the quantity of water sprayed on the asphalt is about 24.5 litres per minute. Since the water sprayed onto the runway is removed, the runway is always available for emergency landings.
  • the recycling ensures that the tank 30 can be relatively small, and is thus transportable on a vehicle.
  • the sand activated carbon filter has to be flushed clean from time to time.
  • provision is made between the tank 30 and a branch point of the line 25 for a line 35, in which a valve 36 is placed.
  • the flushing system also needs a valve 37 in the line 25, a valve 38 in the line 27, a line 39 connecting the lines 27 and 29 to valve 40, and a line 41 connecting lines 27 and 21 to valve 42, and a valve 43 in the line 29.
  • the filter 28 can be flushed back, water being conveyed to a bag-type filter 22 or 23.
  • valves 24a, 24b In normal operation one of the bag-type filters is always in use. Through operation of the valves 24a, 24b, it is possible to switch over from one bag-type filter to the other, and the used filter can be replaced without the work having to be interrupted.

Landscapes

  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Road Paving Structures (AREA)
  • Power Steering Mechanism (AREA)
  • Cyclones (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Detergent Compositions (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Polarising Elements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Water Treatment By Sorption (AREA)
  • Networks Using Active Elements (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Escalators And Moving Walkways (AREA)
  • Photoreceptors In Electrophotography (AREA)

Claims (7)

  1. Vorrichtung zum Reinigen einer flachen Oberfläche mit kräftigen Wasserstrahlen, insbesondere zum Beseitigen von Gummi von Startbahnen, mit einer oder mehreren Düsen (1), die über eine Leitung (2) mit einer Quelle für unter Druck stehendes Wasser verbunden sind, und mit einem Zirkulationssystem, das mit den Düsen beweglich ist, wobei dieses System wenigstens mit einem Wassertank (30), mit einer damit verbundenen Pumpeneinheit (32), um das Wasser auf den hohen Druck zu bringen, mit einer um den Düsen angebrachten Haube (5) mit einer Saugleitung (6, 8), mit einer Filtereinrichtung (15) zum Entfernen von Feststoffen aus dem Wasser, das aus der Haube (5) abgeleitet wird, wobei die Filtereinrichtung eine Filtereinrichtung für grobe Teilchen und eine Filtereinrichtung (22, 23, 28) für kleine Teilchen beinhaltet, mit einer Rückleitung zum Tank (30) und mit einem Zyklonabscheider (9) für das Entfernen von Luft aus dem aus der Haube abgeleiteten Wasser versehen ist, dadurch gekennzeichnet, daß der Zyklonabscheider (9) in Strömungsrichtung unmittelbar nach der Haube angeordnet ist, daß die Filtereinrichtung (15) zum Entfernen von groben Teilchen direkt mit dem Boden des Zyklonabscheiders (9) verbunden ist, daß die Filtereinrichtung zum Entfernen der kleinen Teilchen aus wenigstens einem Beutelfilter (22, 23), der für das Entfernen von Teilchen mit einer Größe von mehr als 3 µm geeignet ist und der in Strömungsrichtung nach dem Zyklonabscheider (9) angeordnet ist, und einem Aktivkohlefilter (28) besteht, der für das Entfernen von Teilchen mit einer Größe von weniger als 3 µm geeignet ist und der in Strömungsrichtung nach dem Beutelfilter (22, 23) angeordnet ist, daß eine Flüssigkeitsverbindung (35 bzw. 41) sowohl zwischen dem Tank (30) und der Flüssigkeitsabgabeseite des Aktivkohlefilters (28) als auch zwischen der Flüssigkeitszuführseite des Filters (28) und dem Beutelfilter (22, 23) vorgesehen ist, und daß umschaltbare Ventile (36, 37, 38, 40, 42, 43) im System vorhanden sind, um Tankwasser zu der Seite des Aktivkohlefilters (28) zu führen, die normalerweise die Abgabeseite ist, um den Aktivkohlefilter periodisch zu spülen und um Spülwasser von der Seite des Aktivkohlefilters, die normalerweise die Zuführseite ist, zum Beutelfilter (22, 23) zu führen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß parallel zwei oder mehr Beutelfilter (22, 23) vorgesehen sind, und daß in den Leitungen (21a, 21b) zu den Beutelfiltern Ventile (24a, 24b) angeordnet sind.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in der Flüssigkeitsleitung (21a, 21b) zwischen dem Zyklonabscheider (9) und dem Beutelfilter (22, 23) und in der Flüssigkeitsleitung (25, 27) zwischen dem Beutelfilter (22, 23) und dem Aktivkohlefilter (28) eine Membranpumpe (16 bzw. 26) vorgesehen ist.
  4. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Hochdruckpumpe (32) eine Verstärkerpumpe ist, die mit einem hydraulisch angetriebenen Kolbensystem versehen ist, das einen relativ niedrigen Druck und eine hohe Zuführrate in einen relativ hohen Druck und eine geringe Zuführrate umwandelt.
  5. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß sich die Saugleitung (6, 8) tangential in die um den Düsen (1) angebrachte Haube öffnet.
  6. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß an einer sich drehenden, vertikalen Hohlwelle (3) eine Anzahl von Düsen (1) angebracht ist.
  7. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in die Verbindung zwischen dem Wassertank (30) und der Hochdruckpumpe (32) ein Duplexfilter eingesetzt ist.
EP88202385A 1987-11-27 1988-10-26 Vorrichtung zum Reinigen von Startbahnen Expired - Lifetime EP0318074B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88202385T ATE62291T1 (de) 1987-11-27 1988-10-26 Vorrichtung zum reinigen von startbahnen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8702856 1987-11-27
NL8702856A NL8702856A (nl) 1987-11-27 1987-11-27 Inrichting voor het met krachtige waterstralen reinigen van een vlak oppervlak, in het bijzonder voor het verwijderen van rubber van landingsbanen.

Publications (3)

Publication Number Publication Date
EP0318074A1 EP0318074A1 (de) 1989-05-31
EP0318074B1 EP0318074B1 (de) 1991-04-03
EP0318074B2 true EP0318074B2 (de) 1996-03-20

Family

ID=19850991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202385A Expired - Lifetime EP0318074B2 (de) 1987-11-27 1988-10-26 Vorrichtung zum Reinigen von Startbahnen

Country Status (7)

Country Link
EP (1) EP0318074B2 (de)
AT (1) ATE62291T1 (de)
DE (1) DE3862290D1 (de)
DK (1) DK163437C (de)
ES (1) ES2021826B3 (de)
GR (1) GR3001773T3 (de)
NL (1) NL8702856A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655072A1 (fr) * 1989-11-24 1991-05-31 Sita Machine de nettoyage urbain.
CH684465A5 (de) * 1992-02-28 1994-09-30 Kaufmann Ag Verfahren und Einrichtung zum Entfernen einer Oberflächenschicht von einem Körper.
FR2703088B1 (fr) * 1993-03-22 1995-06-09 Saada Procede et dispositif de nettoyage d'une chaussee poreuse.
FR2704781B1 (fr) * 1993-05-05 1995-07-28 Colas Sa Dispositif de nettoyage, appareil et vehicule de nettoyage pour surface rugueuses.
DE9314896U1 (de) * 1993-10-02 1994-01-13 Hörger, Ulrich, 21781 Cadenberge Bodenreinigungsgerät zur Reinigung von Flächen mit rauher oder poriger Oberfläche im Sport- und Anlagenbereich
DE4404230A1 (de) * 1994-02-10 1995-08-17 Max Steinhart Gmbh Pflaster Un Verfahren und Vorrichtung zum Säubern von Bodenflächen, insbesondere von Fugen zwischen Pflastersteinen und Bodenplatten
DE29514554U1 (de) * 1995-09-01 1995-11-16 Hako-Werke Gmbh & Co, 23843 Bad Oldesloe Fahrbare Naßreinigungsmaschine
DE19541887A1 (de) * 1995-11-10 1997-05-15 Rainer Scholz Verfahren und Vorrichtung zur Abreinigung einer durch umweltschädliche Medien kontaminierten und/oder in ihrer Griffigkeit beeinträchtigten Fahrbahn oder sonstigen Verkehrsfläche
WO2000020693A1 (en) * 1998-10-02 2000-04-13 Heckett Multiserv France Sa Removal of surface markings
DE10037548C2 (de) * 2000-08-02 2002-06-20 Airmatic Ges Umwelt & Tech Mbh Vorrichtung zur Abreinigung von durch umweltschädliche Medien kontaminierte Verkehrsflächen
DE10042042C1 (de) 2000-08-26 2002-03-21 Umwetec Gmbh & Co Kg Vorrichtung zur Reinigung einer Fahrbahn
GB0821460D0 (en) * 2008-11-25 2008-12-31 Innovative Ind Ltd Mobile cleaning equipment
CN113245160B (zh) * 2021-05-28 2022-05-13 韩山师范学院 一种带有回收塑料颗粒功能的环保塑胶跑道自动喷胶设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1327799A (en) * 1972-11-21 1973-08-22 Warwick Pump & Eng Co Surface cleaning
US3959010A (en) * 1974-09-30 1976-05-25 Thompson Tank Manufacturing Company Vortex cleaner and method of cleaning
DE2617635C2 (de) * 1976-04-22 1978-05-11 Woma Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Waschsauger, insbesondere als Fahrzeug oder fahrbare Vorrichtung ausgebildeter Waschsauger
FR2515536B1 (fr) * 1981-11-04 1985-06-28 Asnets Sarl Perfectionnements apportes aux machines a nettoyer et a decaper les sols
EP0121511A1 (de) * 1983-04-05 1984-10-10 Dieter Nolte Fahrbare Saugvorrichtung zum Reinigen

Also Published As

Publication number Publication date
ATE62291T1 (de) 1991-04-15
ES2021826B3 (es) 1991-11-16
DK163437C (da) 1992-07-20
EP0318074B1 (de) 1991-04-03
GR3001773T3 (en) 1992-11-23
DK163437B (da) 1992-03-02
NL8702856A (nl) 1989-06-16
EP0318074A1 (de) 1989-05-31
DK659788D0 (da) 1988-11-25
DE3862290D1 (de) 1991-05-08
DK659788A (da) 1989-05-28

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