EP1752080A2 - Lave-vaisselle du type transport comportant des moyens pour réduire la salissure du fluide de lavage - Google Patents

Lave-vaisselle du type transport comportant des moyens pour réduire la salissure du fluide de lavage Download PDF

Info

Publication number
EP1752080A2
EP1752080A2 EP06012920A EP06012920A EP1752080A2 EP 1752080 A2 EP1752080 A2 EP 1752080A2 EP 06012920 A EP06012920 A EP 06012920A EP 06012920 A EP06012920 A EP 06012920A EP 1752080 A2 EP1752080 A2 EP 1752080A2
Authority
EP
European Patent Office
Prior art keywords
liquid
washing
washing liquid
wash
transport
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
EP06012920A
Other languages
German (de)
English (en)
Other versions
EP1752080B1 (fr
EP1752080A3 (fr
Inventor
Dietrich Berner
Klaus Dr. Padtberg
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.)
Premark FEG LLC
Original Assignee
Premark FEG LLC
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 Premark FEG LLC filed Critical Premark FEG LLC
Publication of EP1752080A2 publication Critical patent/EP1752080A2/fr
Publication of EP1752080A3 publication Critical patent/EP1752080A3/fr
Application granted granted Critical
Publication of EP1752080B1 publication Critical patent/EP1752080B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
    • A47L15/247—Details specific to conveyor-type machines, e.g. curtains

Definitions

  • the invention relates to a transport dishwasher in the form of a belt conveyor dishwasher or a basket conveyor dishwasher according to the preamble of claim 1.
  • Transport dishwashers are for example from the US 3,789,860 ; US 4,231,806 ; DE 196 44 438 C2 and DE 198 29 650 C2 known.
  • the washware is transported by a transport device through one or more wash zones and a final rinse zone of the conveyor warewashing machine. From zone to zone, a fluid cascade is formed whose flow direction is opposite to the transport direction. When the liquid cascade is interrupted, the washing liquid in the wash tanks of the liquid cascade no longer receives regeneration by dilution with fresh water. Depending on the dirtiness of the items to be cleaned in the washing liquid (wash liquid), this washing liquid can become very dirty, so that this has a reduced cleaning capacity.
  • the problem to be solved is to keep the cleaning efficiency constant throughout the service life.
  • the invention relates to a transport dishwasher in the form of a belt conveyor dishwasher or a basket transport dishwasher, comprising at least one washing zone which has washing liquid washing nozzles and which is provided with a washing liquid Rezirkulationsstrang, which latter a wash tank for collecting at least a portion of sprayed washing liquid and a washing liquid supply line having a pump for supplying washing liquid from the washing tank to the washing nozzles; a rinse zone with rinse aid clear rinse liquid; a transport device for conveying items to be washed by the zones, wherein the transport direction of the transport device is directed from the at least one wash zone to the final rinse zone; characterized in that for at least one washing zone a washing liquid filtration strand is provided for removing and then filtering sprayed washing liquid from the washing liquid recirculation line and for returning filtered washing liquid into the washing liquid recirculation line, the washing liquid filtration line for filtering the sprayed washing liquid Microfiltration device or an ultrafiltration device.
  • a microfiltration device or an ultrafiltration device according to the invention can be provided for one or more wash zones. Preferably, this is located in the wash tank of the washing zone concerned Washing liquid processed in a cycle. For this treatment of the wash water no fresh water (fresh water) is needed, but it will only remove the contaminants located in the washing liquid from the washing liquid.
  • Wash liquid is water to which detergent (detergent) is added.
  • Rinse aid may be fresh water with or without rinse aid.
  • the conveyor-type warewashing machine can be a flight-type goods washer in which the washware to be cleaned is transported by a conveyor belt through the machine, or a basket transport dishwasher (FIG. Rack conveyor ware washer), in which the wash ware is transported in baskets on the transport device through the machine.
  • a flight-type goods washer in which the washware to be cleaned is transported by a conveyor belt through the machine
  • a basket transport dishwasher FIG. Rack conveyor ware washer
  • the transport dishwasher of Fig. 1 includes a transport device 2, the transport direction 4 is indicated by an arrow.
  • the washware may be of any type, eg. As plates, cups, glasses, cutlery, trays, pots, pans.
  • the transport dishwasher contains at least one, z. B. according to the drawings two (or more) in the transport direction 4 consecutively arranged wash zones 6 and 8 (wash zones) for washing the dishes with wash liquid (wash liquid) and a rinse zone 14 (final rinse zone) for final rinse (rinse) of the dishes (wash ware) with rinse liquid (final rinse liquid).
  • the washing liquid is water to which detergent is added.
  • Final rinse liquid may be fresh water with or without rinse aid.
  • each washing zone 6 and 8 are upper and lower washing nozzles 20, 22 and 24, 26 for spraying washing liquid (wash liquid) on the washware, which is located on the transport device 2.
  • the washing zones 6 and 8 are each provided with a wash tank 28 or 30 (wash tank), in which washing liquid sprayed from the washing nozzles 20, 22 or 24, 26 collects. From the washing tanks 28 and 30, washing liquid is recirculated back to the washing nozzles 20, 22 and 24, 26, respectively, by a washing liquid supply pipe 38 and 40, each containing a pump 34 and 36, respectively.
  • the wash liquid supply line 38 or 40 and the associated wash tank 28 or 30 form a washing liquid Rezirkulationsstrang 28/38 and 30/40.
  • Each washing liquid recirculation line 28/38 or 30/40 together with the associated washing zone 6 or 8 and their washing nozzles 20, 22 and 24, 26 a washing liquid recirculation circuit.
  • the rinse zone 14 (final rinse zone) is provided with upper and lower rinsing spray nozzles 42 and 44, respectively, to which rinse liquid (final rinse liquid) can be supplied via a final rinse liquid supply line 46.
  • the sprayed rinse liquid collects in a rinse tank 48 (post-wash tank).
  • This pre-rinse liquid is supplied through a post-wash liquid supply line 50 containing a pump 51 to upper and lower post-wash nozzles 52 and 54, respectively.
  • the Nachwaschcroftkeit is thus pre-used final rinse liquid.
  • post-wash zone 12 may also be referred to as a pre-rinse zone
  • post-wash liquid may also be referred to as a pre-rinse liquid.
  • the post-wash tank 48 can also be referred to as a pre-rinse tank.
  • the Nachwaschlotkeit sprayed by the Nachwasch spray nozzles 52 and 54 passes partially into the Nachwaschtank 48 and partially via a guide plate 60 in the last wash tank 30th
  • the wash tanks 28 and 30 and the Nachwaschtank 48 form a liquid cascade system in which the liquid overflows from one to the other tank against the transport direction 4 of the transport device 2.
  • liquid from the rinse tank 48 flows into the last wash tank 30 and from there into the next wash tank 28.
  • the last wash tank 28 in this flow direction which is the first tank in the transport direction 4, is preferably provided with a dirty liquid drain 62.
  • a dryer 64 may be arranged for drying the cleaned items to be washed.
  • a scrubbing liquid filtration line 70 is provided for removal and then for spraying of sprayed Washing liquid from the washing liquid Rezirkulationsstrang 30/40 of the respective washing zone 8 and for returning filtered washing liquid in the same washing liquid Rezirkulationsstrang 30/40.
  • the scrubbing liquid filtration column 70 contains a microfiltration device 72 or an ultrafiltration device 72 for filtering the scrubbing liquid.
  • the essential difference between the microfiltration and the ultrafiltration lies in the different pore sizes of the filter elements. Filtration through filter elements having a pore size ⁇ 0.1 .mu.m is called ultrafiltration, while filtration at pore sizes> 0.1 .mu.m to 100 .mu.m is referred to as microfiltration.
  • the scrubbing liquid filtration strand 70 is preferably formed as a filtration circuit, in which a portion 30 of the scrubbing liquid Rezirkulationsstrangs 30/40 is integrated, so that from this section 30 scrubbing liquid flows into the scrubbing liquid filtration strand 70 and after filtering the scrubbing liquid the filtered washing liquid part flows back into this section 30 again.
  • the section 30 may theoretically be any element of the scrubbing liquid recirculation line 30/40, but is preferably the scrubbing tank 30 of the scrubbing zone 8 in question.
  • the microfiltration device 72 or the ultrafiltration device 72 has a cross-flow filter 74 for microfiltration or ultrafiltration of the sprayed washing liquid.
  • the cross-flow filter 74 contains at least one primary chamber 76 and at least one secondary chamber 78, which are separated from each other by at least one microfiltration element 80 or at least one ultrafiltration element 80.
  • a portion of the scrubbing liquid filtration string 70 is formed by an internal recirculation circuit 82 for recirculating unfiltered scrubbing liquid, in which the primary chamber 76 and downstream of the primary chamber 76, a liquid collection element 84 are arranged.
  • a feed section 86 of the washing liquid filtration strand 70 for supplying sprayed washing liquid from the washing liquid recirculation line 30/40 also opens in the liquid collecting element 84.
  • the secondary chamber 78 serves to receive the washing liquid part filtered by the at least one microfiltration element 80 or ultrafiltration element 80, which is a partial flow of the main flow of washing liquid flowing into the primary chamber 76.
  • the internal recirculation circuit 82 includes a pump 88 for supplying wash liquid from the liquid collection element 84 into the primary chamber 76.
  • the liquid collection element 84 is preferably a collection tank for receiving sprayed wash liquid from the wash liquid recirculation strand 30/40 of the at least one wash zone 8 and for receiving wash liquid returned from the primary chamber 76 to the collection tank 84.
  • the collection tank 84 is preferably designed to collect dirt and provided with a dirt outlet 90 for removing debris from the washing liquid.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP06012920A 2005-08-12 2006-06-23 Lave-vaisselle du type transport comportant des moyens pour réduire la salissure du fluide de lavage Expired - Fee Related EP1752080B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005038433A DE102005038433A1 (de) 2005-08-12 2005-08-12 Transport-Geschirrspülmaschine

Publications (3)

Publication Number Publication Date
EP1752080A2 true EP1752080A2 (fr) 2007-02-14
EP1752080A3 EP1752080A3 (fr) 2007-11-07
EP1752080B1 EP1752080B1 (fr) 2010-10-20

Family

ID=37398264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06012920A Expired - Fee Related EP1752080B1 (fr) 2005-08-12 2006-06-23 Lave-vaisselle du type transport comportant des moyens pour réduire la salissure du fluide de lavage

Country Status (4)

Country Link
US (1) US20070034240A1 (fr)
EP (1) EP1752080B1 (fr)
CA (1) CA2555143C (fr)
DE (2) DE102005038433A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015171490A1 (fr) * 2014-05-08 2015-11-12 Illinois Tool Works Inc. Agencement de filtres de bras gicleur pour lave-vaisselle
EP3815595A1 (fr) * 2019-11-04 2021-05-05 Winterhalter Gastronom GmbH Machine à laver la vaisselle dotée bande transporteuse

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DE102007062953A1 (de) * 2007-12-21 2009-06-25 Premark Feg L.L.C., Wilmington Geschirrspülmaschine in Form eines Programmautomaten und Verfahren zu deren Betrieb
DE102008037344B4 (de) * 2008-08-11 2019-01-31 Premark Feg L.L.C. Transportspülmaschine und Verfahren zum Betreiben einer Transportspülmaschine
CN101648194B (zh) * 2008-08-13 2012-07-18 鸿富锦精密工业（深圳）有限公司 解胶装置和解胶方法
US7980395B2 (en) * 2009-01-29 2011-07-19 Whirlpool Corporation Cross-flow filtration system
US8667974B2 (en) 2009-12-21 2014-03-11 Whirlpool Corporation Rotating filter for a dishwashing machine
US9918609B2 (en) 2009-12-21 2018-03-20 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US9119515B2 (en) 2010-12-03 2015-09-01 Whirlpool Corporation Dishwasher with unitary wash module
US8746261B2 (en) 2009-12-21 2014-06-10 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US9687135B2 (en) 2009-12-21 2017-06-27 Whirlpool Corporation Automatic dishwasher with pump assembly
US8627832B2 (en) 2010-12-13 2014-01-14 Whirlpool Corporation Rotating filter for a dishwashing machine
US9113766B2 (en) 2010-11-16 2015-08-25 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9668636B2 (en) 2010-11-16 2017-06-06 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9034112B2 (en) 2010-12-03 2015-05-19 Whirlpool Corporation Dishwasher with shared heater
GB2489053A (en) 2011-03-18 2012-09-19 Rockwash Prep & Store Ltd A method and apparatus for washing rock samples
US8733376B2 (en) 2011-05-16 2014-05-27 Whirlpool Corporation Dishwasher with filter assembly
US9107559B2 (en) 2011-05-16 2015-08-18 Whirlpool Corporation Dishwasher with filter assembly
US20120318296A1 (en) 2011-06-20 2012-12-20 Whirlpool Corporation Ultra micron filter for a dishwasher
US9010344B2 (en) 2011-06-20 2015-04-21 Whirlpool Corporation Rotating filter for a dishwashing machine
US9265401B2 (en) 2011-06-20 2016-02-23 Whirlpool Corporation Rotating filter for a dishwashing machine
US9861251B2 (en) 2011-06-20 2018-01-09 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US9005369B2 (en) 2011-06-20 2015-04-14 Whirlpool Corporation Filter assembly for a dishwasher
US9301667B2 (en) 2012-02-27 2016-04-05 Whirlpool Corporation Soil chopping system for a dishwasher
US9730570B2 (en) 2012-05-30 2017-08-15 Whirlpool Corporation Reduced sound with a rotating filter for a dishwasher
US9237836B2 (en) 2012-05-30 2016-01-19 Whirlpool Corporation Rotating filter for a dishwasher
US9451862B2 (en) 2012-06-01 2016-09-27 Whirlpool Corporation Dishwasher with unitary wash module
US9532700B2 (en) 2012-06-01 2017-01-03 Whirlpool Corporation Dishwasher with overflow conduit
US9833120B2 (en) 2012-06-01 2017-12-05 Whirlpool Corporation Heating air for drying dishes in a dishwasher using an in-line wash liquid heater
US9554688B2 (en) 2012-10-23 2017-01-31 Whirlpool Corporation Rotating filter for a dishwasher and methods of cleaning a rotating filter
US10105033B2 (en) 2013-03-21 2018-10-23 Seven Hour Drive, LLC Auxiliary gray water source device for commercial kitchens
US20140283927A1 (en) * 2013-03-21 2014-09-25 Seven Hour Drive, LLC Auxiliary gray water source device for commercial kitchens
US9596973B2 (en) * 2013-03-21 2017-03-21 Seven Hour Drive, LLC Auxiliary gray water source device for commercial kitchens

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CH262228A (de) * 1948-02-13 1949-06-30 Weiland Carl Verfahren zum Waschen und Trocknen von Geschirr, Besteck, Gläsern, Dosen, Schokoladeformen und dergleichen sowie Vorrichtung zur Durchführung des Verfahrens.
EP0518806A1 (fr) * 1991-06-13 1992-12-16 Miele & Cie. GmbH & Co. Procédé de réutilisation de liquides de rinçage ou de lavage dans des machines à laver la vaisselle ou le linge comportant une commande par programme
DE9403650U1 (de) * 1994-03-04 1995-08-10 AEG Hausgeräte GmbH, 90429 Nürnberg Haushalt-Geschirrspülmaschine mit Wasseraufbereitungsvorrichtung
US5868937A (en) * 1996-02-13 1999-02-09 Mainstream Engineering Corporation Process and system for recycling and reusing gray water
EP0995483A1 (fr) * 1998-10-23 2000-04-26 The Procter & Gamble Company Appareil de filtration à écoulement tangentiel
EP1741674A2 (fr) * 2005-06-28 2007-01-10 Seiler Verfahrenstechnik GmbH Procédé et dispositif pour le nettoyage d'articles
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EP1815779A2 (fr) * 2006-02-03 2007-08-08 Premark FEG L.L.C. Machine à laver la vaisselle à bande

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Publication number Priority date Publication date Assignee Title
CH262228A (de) * 1948-02-13 1949-06-30 Weiland Carl Verfahren zum Waschen und Trocknen von Geschirr, Besteck, Gläsern, Dosen, Schokoladeformen und dergleichen sowie Vorrichtung zur Durchführung des Verfahrens.
EP0518806A1 (fr) * 1991-06-13 1992-12-16 Miele & Cie. GmbH & Co. Procédé de réutilisation de liquides de rinçage ou de lavage dans des machines à laver la vaisselle ou le linge comportant une commande par programme
DE9403650U1 (de) * 1994-03-04 1995-08-10 AEG Hausgeräte GmbH, 90429 Nürnberg Haushalt-Geschirrspülmaschine mit Wasseraufbereitungsvorrichtung
US5868937A (en) * 1996-02-13 1999-02-09 Mainstream Engineering Corporation Process and system for recycling and reusing gray water
EP0995483A1 (fr) * 1998-10-23 2000-04-26 The Procter & Gamble Company Appareil de filtration à écoulement tangentiel
EP1741674A2 (fr) * 2005-06-28 2007-01-10 Seiler Verfahrenstechnik GmbH Procédé et dispositif pour le nettoyage d'articles
WO2007021786A2 (fr) * 2005-08-18 2007-02-22 Premark Feg L.L.C. Laveuse d'articles a convoyeur
WO2007024491A2 (fr) * 2005-08-20 2007-03-01 Premark Feg L.L.C. Lave-vaisselle a convoyeur
EP1815779A2 (fr) * 2006-02-03 2007-08-08 Premark FEG L.L.C. Machine à laver la vaisselle à bande

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015171490A1 (fr) * 2014-05-08 2015-11-12 Illinois Tool Works Inc. Agencement de filtres de bras gicleur pour lave-vaisselle
US9962059B2 (en) 2014-05-08 2018-05-08 Illinois Tool Works Inc. Warewasher wash arm filter arrangement
EP3815595A1 (fr) * 2019-11-04 2021-05-05 Winterhalter Gastronom GmbH Machine à laver la vaisselle dotée bande transporteuse

Also Published As

Publication number Publication date
DE102005038433A1 (de) 2007-02-15
US20070034240A1 (en) 2007-02-15
EP1752080B1 (fr) 2010-10-20
CA2555143C (fr) 2010-02-02
CA2555143A1 (fr) 2007-02-12
DE502006008118D1 (de) 2010-12-02
EP1752080A3 (fr) 2007-11-07

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