EP4144917A1 - Balayeuse mécanique dotée d'un système automatique de nettoyage permettant de nettoyer un système de recyclage - Google Patents

Balayeuse mécanique dotée d'un système automatique de nettoyage permettant de nettoyer un système de recyclage Download PDF

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Publication number
EP4144917A1
EP4144917A1 EP21194243.8A EP21194243A EP4144917A1 EP 4144917 A1 EP4144917 A1 EP 4144917A1 EP 21194243 A EP21194243 A EP 21194243A EP 4144917 A1 EP4144917 A1 EP 4144917A1
Authority
EP
European Patent Office
Prior art keywords
recycling
water
suction
sweeping machine
machine according
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.)
Pending
Application number
EP21194243.8A
Other languages
German (de)
English (en)
Inventor
Benedikt Sturny
Didier Neuhaus
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.)
Marcel Boschung AG
Original Assignee
Marcel Boschung AG
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 Marcel Boschung AG filed Critical Marcel Boschung AG
Priority to EP21194243.8A priority Critical patent/EP4144917A1/fr
Priority to CA3167265A priority patent/CA3167265A1/fr
Priority to US17/900,246 priority patent/US20230069757A1/en
Publication of EP4144917A1 publication Critical patent/EP4144917A1/fr
Pending 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
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
    • E01H1/0845—Apparatus dislodging all of the dirt by suction ; Suction nozzles with mechanical loosening or feeding instruments for the dirt to be sucked- up, e.g. brushes, scrapers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0033—Recovery tanks with means for recycling the dirty liquid
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409—Rigid filtering receptacles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325—Control mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0326—Using pulsations

Definitions

  • the invention relates to a street sweeper with a dirt container and a suction device.
  • the suction device has a suction mouth, a suction channel and a suction fan.
  • the suction device leads a suction flow to the dirt container.
  • the street sweeper includes a recycling system with a separating device. The separating device separates dirty water from the dirt container into the recycling system so recycled water can be reused.
  • the street sweeper includes a fresh water tank in which fresh water is stored.
  • Street sweepers are used to clean streets. They usually include circular brooms, with which dirt is sucked into a dirt container through a suction mouth and a suction channel. Nozzles spray fresh water onto the street in front of the disc brushes. This reduces the raising of dust. The sprayed water is sucked up together with the dirt and conveyed into the dirt container.
  • Additional nozzles spray water into the suction mouth and into the suction channel.
  • the sprayed water binds the dust at high flow rates in the suction channel.
  • the dust remains in the dirt container and does not exit the street sweeper through the dirt container's exhaust opening.
  • a street sweeper can only carry a limited amount of fresh water and the consumption of fresh water should always be reduced for ecological reasons.
  • the street sweeper therefore has a recycling system. The sucked in dirty water is recycled and can be reused within the street sweeper.
  • Road sweeper drivers are trained to clean the recycling system when emptying the dirt container and/or daily so that the functionality of the recycling system is not impaired.
  • the task is to provide a street sweeper with a user-friendly recycling system.
  • a street sweeper comprises a dirt container and a suction device.
  • the suction device includes a suction mouth, a suction channel and a suction fan.
  • the suction fan creates a suction flow, which leads into the dirt container.
  • the street sweeper includes a recycling system with a separating device. The separating device separates sucked-in dirty water from the dirt container into the recycling system.
  • a recycling system is a system in which the waste water is intended to be reused within the street sweeper.
  • the recycling system can treat and clean the dirty water. However, this is not absolutely necessary. Only relevant for the definition of the recycling system is the reuse of the dirty water within the street sweeper.
  • Reuse means that the dirty water does not remain in the dirt container until the dirt container is emptied, but is used in another form within the street sweeper.
  • the street sweeper includes a fresh water tank in which fresh water is stored.
  • a cleaning device is provided, by means of which at least part of the recycling system can be cleaned. Fresh water from the fresh water tank is used to clean the recycling system.
  • the presence of a cleaning device has the advantage that the recycling system can be cleaned in a simple manner. For example, it is not necessary for the driver of the street sweeper with an external cleaning device, for example with an external high-pressure cleaning system, which cleans the recycling system. This task is performed by the cleaning device built into the street sweeper, which is specially designed for cleaning the recycling system. The recycling system can therefore be cleaned effectively and efficiently.
  • the recycling system works continuously and no time-consuming maintenance work is required.
  • the street sweeper is extremely user-friendly to operate.
  • the street sweeping machine is advantageously designed in such a way that the recycling water is not fed to the fresh water tank and/or is not fed to the existing cleaning brooms, in particular circular brooms.
  • the recycling water is fed, in particular sprayed, into the suction mouth and/or into the suction channel.
  • the recycled water is therefore not used where absolutely clean water is required.
  • the recycling water does not have to be processed and cleaned at great expense, but it may also contain a certain amount of dirt.
  • the dirt content in the recycle water causes the problem that certain sections of the recycle system become dirty or clogged.
  • the existing cleaning device solves this problem by regularly cleaning the recycling system.
  • the recycling system advantageously has a recycling line.
  • the recycling water flows in a first flow direction from the dirt container through the recycling line.
  • the recycling line leads the recycling water from the dirt container to the suction mouth and/or to the suction channel.
  • From the hopper does not mean that the recycle line has to connect directly to the hopper. It just means that the recycle line carries recycle water taken from the dirt tank.
  • At least one section of the recycling line is cleaned by means of the cleaning device.
  • the cleaning device sprays a high-pressure water jet into the recycling line.
  • This water jet can be continuous or pulsating. With such a system, the recycling line can be cleaned effectively and efficiently.
  • high-pressure water jet is known to those skilled in the art.
  • a high-pressure water jet is associated with a pressure build-up of at least 15 bar.
  • the cleaning device advantageously draws fresh water from the fresh water tank and guides or sprays the fresh water in a second flow direction through a section of the recycling line, in particular through the complete recycling line.
  • the first and the second direction of flow can be in the same direction or in opposite directions. In the same direction, the dirt is conveyed in particular to the suction device and in the opposite direction, the dirt is conveyed in particular to the dirt container.
  • first and second flow directions can be opposite in a first section of the recycling line and in the same direction in a second section.
  • the cleaning device sprays the fresh water in the opposite direction so that the dirt is transported towards the dirt tank.
  • the first and the second direction of flow can then be in the same direction, such that the cleaning device sprays the dirt to the suction device by means of the fresh water.
  • the cleaning device described which is integrated in the street sweeper, has the advantage that the fresh water can be sprayed into the recycling line at the optimal position and in the optimal direction. An optimal cleaning result is possible and the recycling line can be cleaned effectively and efficiently. In other words, the cleaning takes place within a very short time, the consumption of fresh water is minimized and the cleaning result is good, so that the continuous operation of the recycling system is ensured.
  • the recycling system includes a recycling water tank.
  • This recycled water is collected.
  • This recycling water tank can be part of the dirt container, i.e. it can be arranged inside the dirt container. However, the recycling water tank can also be arranged outside the dirt container.
  • An arrangement within the dirt container has the advantage that the recycling system can be made as compact as possible.
  • the street sweeping machine advantageously includes a controller.
  • the controller can automatically control the cleaning device.
  • the controller activates the cleaning device automatically after a certain operating or driving time.
  • the operating time also includes idle time during which the street sweeper is in operation.
  • the cleaning device is activated after a maximum time interval of five minutes, in particular a maximum of two minutes, in particular a maximum of one minute, in particular a maximum of 30 seconds.
  • the automatic activation has the advantage that the cleaning is not forgotten and the perfect function of the recycling system is permanently guaranteed.
  • the control can also automatically activate the street sweeper after a certain driving distance has been covered, ie it is not the time but the measured the distance travelled. Additionally or alternatively, the driver of the vehicle can give the controller a signal, for example by pressing a button, and the controller can activate the cleaning device.
  • the controller activates the cleaning device periodically, specifically for a maximum of 30 seconds, in particular a maximum of ten seconds, in particular a maximum of five seconds, in particular a maximum of two seconds.
  • the automatic cleaning device has the advantage that the recycling system can be cleaned in very short cycles. The operation of the street cleaning does not have to be interrupted.
  • the recycling system includes a recycling device for treating the dirty water.
  • the recycling device provides recycled water.
  • the recycling device can be designed, for example, as a filter, in particular as a filter plate.
  • a spray device is advantageously present, with which fresh water is sprayed in front of the cleaning broom of the street sweeper.
  • FIG 1 shows in a schematic way the structure of a street sweeper with an integrated recycling system and cleaning device.
  • FIG. 1 shows the schematic structure of a street sweeper according to the invention.
  • the Street Sweeper is a wheeled vehicle with an engine room and a cab. cab and wheels are in 1 Not shown.
  • 1 shows the view of the vehicle from the left. ie in 1 the front of the vehicle is on the left. The rear of the vehicle is on the right. The direction of travel of the road sweeper is in the direction of arrow 1.
  • Disc brooms 2 are arranged at the front of the street sweeper. These circular brooms 2 wipe the dirt present on the road 3 into a suction mouth 4.
  • the suction mouth 4 is arranged below the driver's cab, not shown.
  • a suction channel 5 connects the suction mouth 4 to a dirt container 6.
  • a suction fan 7 arranged on the dirt container 6 sucks the dirt that has been wiped up through the suction mouth 4 and through the suction channel 5 into the dirt container 6.
  • the dirt container 6 collects the dirt that has been sucked in. The vehicle driver must empty the dirt container 6 regularly.
  • Nozzles 8 are arranged at the front of the circular broom 2 and, in the present exemplary embodiment, at the front of the street sweeping machine. These nozzles 8 spray fresh water onto the road 3.
  • a pump 9 pumps the fresh water from a fresh water tank 10 to the nozzles 8.
  • the fresh water tank 10 is located in the machine room and can have a volume of 200 liters, for example.
  • the direction of flow from the fresh water tank 10 to the nozzles 8 is in 1 represented by 1-fold arrows. Spraying road 3 with water prevents dust and fine dust particles from being stirred up.
  • the suction flow flowing through the suction mouth 4 and the suction channel 5 into the dirt container 6 thus carries not only dirt, but also the fresh water sprayed by means of the nozzles 8 . If it rains while the street sweeper is in operation, rainwater also gets through the suction mouth 4 into the dirt container 6. This mixture of dirt and fresh water, and possibly in addition Rainwater is referred to below as dirty water.
  • the street sweeper has a recycling system in the machine room.
  • the purpose of the recycling system is to reuse the dirty water sucked into the dirt tank 6 .
  • the recycling system includes a recycling water tank 11 in which recycled water is stored.
  • the recycling water tank 11 is arranged inside the dirt container 6 .
  • the recycling system includes a separating device 12, in the present case in the form of a filter plate, which filters the dirty water and thus removes dirt to a large extent from the dirty water.
  • a separating device 12 in the present case in the form of a filter plate, which filters the dirty water and thus removes dirt to a large extent from the dirty water.
  • the filter plate allows fine dust and fine sand to pass through.
  • the dirty water that has flowed through the separating device 12 is referred to as recycling water after filtering.
  • the recycle water is stored in the recycle water tank 11.
  • a spout 13 with a valve 14 is arranged on the underside of the recycling water tank 11 . If the valve 14 is open, recycling water flows out of the recycling water tank 11 into a recycling line 15. The flow direction of the recycling water is the same throughout 1 marked by double arrows.
  • the recycling line 15 leads the recycling water to nozzles 16 which spray the recycling water into the suction mouth 4 and into the suction line 5 .
  • nozzles 16 By spraying water into the suction mouth 4 and into the suction line 5, dust is bound in the suction channel 5 at a high flow rate, so that the dust does not escape from the street sweeper into the environment via the exhaust air of the outlet opening 17 of the dirt container 6.
  • the filter plate 12 does not filter all dirt from the dirty water.
  • the recycled water is therefore part of the recycling system finest sand and fine dust contaminated.
  • This residual dirt is deposited in the outlet 13, in the recycling line 15 and in the nozzles 16.
  • the recycling system can therefore become clogged or its functionality can at least be impaired.
  • a cleaning device is provided in the street sweeper, with which the recycling system can be cleaned.
  • the outflow 13, the recycling line 15 and the nozzles 16 can be cleaned.
  • the cleaning device comprises a pump 18 and a supply line 19.
  • the pump 18 pumps fresh water from the fresh water tank 10 through the supply line 19 into the recycling line 15. Entry into the recycling line 15 is via an access 20.
  • a valve 21 with which the supply of fresh water can also be controlled.
  • the flow direction of the fresh water from the fresh water tank 10 to the access 20 is in 1 marked with 1-fold arrows.
  • the fresh water is sprayed into the recycling line 15 using high pressure.
  • the fresh water sprayed into the recycling line 15 under high pressure flows through the recycling line 15.
  • the direction of flow is in 1 marked by triple arrows.
  • the sprayed fresh water flows in the opposite direction to the direction of flow of the recycling water.
  • the dirt deposited in the recycling line 15 and in the drain 13 is conveyed back into the recycling tank 11 .
  • the fresh water is sprayed in the same direction as the recycling water flows.
  • the dirt deposited in the recycling line is conveyed into the suction mouth 16 and from there gets into the dirt container 6.
  • the dirt gets into the dirt container 6 due to the suction effect of the suction fan 7.
  • the street sweeper has a controller 22 which, among other things, controls the cleaning device.
  • the cleaning process i.e. the spraying of fresh water under high pressure into the recycling line 15, is activated periodically during operation of the street sweeper, for example after a time interval of 30 seconds.
  • the duration of the cleaning is limited to a few seconds. However, the time interval and cleaning duration are only examples.
  • the control of the cleaning process can also be activated depending on the distance traveled, for example.
  • the driver of the street sweeper can activate the cleaning device manually and for any length of time.
  • the guide activates the cleaning device upon reaching a fire hydrant. In this way, he can clean the recycling system, but then completely refill the fresh water tank.
  • the high-pressure jet can, for example, have a constant water pressure or be pulsating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP21194243.8A 2021-09-01 2021-09-01 Balayeuse mécanique dotée d'un système automatique de nettoyage permettant de nettoyer un système de recyclage Pending EP4144917A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21194243.8A EP4144917A1 (fr) 2021-09-01 2021-09-01 Balayeuse mécanique dotée d'un système automatique de nettoyage permettant de nettoyer un système de recyclage
CA3167265A CA3167265A1 (fr) 2021-09-01 2022-07-07 Balayeuse de rue comprenant un systeme de nettoyage automatique pour nettoyer un systeme de recyclage
US17/900,246 US20230069757A1 (en) 2021-09-01 2022-08-31 Street sweeper with an automatic cleaning system for cleaning a recycling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21194243.8A EP4144917A1 (fr) 2021-09-01 2021-09-01 Balayeuse mécanique dotée d'un système automatique de nettoyage permettant de nettoyer un système de recyclage

Publications (1)

Publication Number Publication Date
EP4144917A1 true EP4144917A1 (fr) 2023-03-08

Family

ID=77595379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21194243.8A Pending EP4144917A1 (fr) 2021-09-01 2021-09-01 Balayeuse mécanique dotée d'un système automatique de nettoyage permettant de nettoyer un système de recyclage

Country Status (3)

Country Link
US (1) US20230069757A1 (fr)
EP (1) EP4144917A1 (fr)
CA (1) CA3167265A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69106515T2 (de) * 1990-06-08 1995-05-11 Schmidt Winterdienst Reinigungs- und andere fahrzeuge.
CN2521252Y (zh) * 2002-01-30 2002-11-20 周治荣 吸扫式扫路机
DE102010024500A1 (de) * 2010-06-10 2011-12-15 Norbert Fischer Vorrichtung und Verfahren zum Beseitigen von Schmutz
EP3205774A1 (fr) * 2016-02-10 2017-08-16 Aebi Schmidt Deutschland GmbH Balayeuse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100928068B1 (ko) * 2009-03-26 2009-11-23 동우인더스(주) 준설차의 수분배출장치
WO2011005356A2 (fr) * 2009-05-06 2011-01-13 Triverus, Llc Appareil et procédé de nettoyage de surface et de recyclage
US20140263691A1 (en) * 2013-03-14 2014-09-18 Friday Harbour Holdings, Llc Paint removal vehicle with gray water separation and recycling
DE102017209405A1 (de) * 2017-06-02 2018-12-06 Koenig & Bauer Ag Vorrichtung zur mobilen Aufbereitung von Prozesswasser, System mit einer solchen Vorrichtung sowie Verfahren zur Durchführung eines mobilen Prozesses
CN207419345U (zh) * 2017-11-09 2018-05-29 福建龙马环卫装备股份有限公司 一种具有污水循环降尘装置的扫路车

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69106515T2 (de) * 1990-06-08 1995-05-11 Schmidt Winterdienst Reinigungs- und andere fahrzeuge.
CN2521252Y (zh) * 2002-01-30 2002-11-20 周治荣 吸扫式扫路机
DE102010024500A1 (de) * 2010-06-10 2011-12-15 Norbert Fischer Vorrichtung und Verfahren zum Beseitigen von Schmutz
EP3205774A1 (fr) * 2016-02-10 2017-08-16 Aebi Schmidt Deutschland GmbH Balayeuse

Also Published As

Publication number Publication date
CA3167265A1 (fr) 2023-03-01
US20230069757A1 (en) 2023-03-02

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