EP1848850B1 - Verfahren und vorrichtung zur nassbehandlung von wäschestücken - Google Patents

Verfahren und vorrichtung zur nassbehandlung von wäschestücken Download PDF

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Publication number
EP1848850B1
EP1848850B1 EP06704365A EP06704365A EP1848850B1 EP 1848850 B1 EP1848850 B1 EP 1848850B1 EP 06704365 A EP06704365 A EP 06704365A EP 06704365 A EP06704365 A EP 06704365A EP 1848850 B1 EP1848850 B1 EP 1848850B1
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EP
European Patent Office
Prior art keywords
laundry
items
press
water
liquid
Prior art date
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Active
Application number
EP06704365A
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German (de)
English (en)
French (fr)
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EP1848850A1 (de
Inventor
Wilhelm Bringewatt
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.)
Herbert Kannegiesser GmbH and Co
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Herbert Kannegiesser GmbH and Co
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Publication of EP1848850A1 publication Critical patent/EP1848850A1/de
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies

Definitions

  • the invention relates to a method for the wet treatment of laundry according to the preamble of claim 1 and 4.
  • the laundry items For washing and rinsing the laundry items have so-called continuous washing machines according to the US 2002/0196770 A1 with an elongated, rotating drivable drum, are formed in the successive chambers, proven.
  • known continuous washing machines at least three zones follow one another, namely a prewash zone, a final wash zone and a rinse zone.
  • a countercurrent of the free liquor is required, to which the drum additional outer chambers must be assigned.
  • the known continuous washing machines have a relatively complicated structure, so that continuous washing machines are used only where large amounts of laundry are to be washed.
  • the drum must have a relatively large length, whereby the known continuous washing machines in the laundry take up much space.
  • the invention has for its object to provide a method for economical wet treatment of laundry items.
  • the method should preferably also allow economical wet treatment of relatively small items of laundry.
  • a method for achieving this object comprises the measures of claim 1.
  • the fact that the laundry is transferred from the washing device with only the bound liquor or only a part thereof from the clear wash in the at least one dewatering press needs to be separated in the washing device only the free liquor of the laundry.
  • the respective dewatering device is designed as a dewatering press and not only the dewatering of the laundry, but also the rinsing in the respective dewatering press, the rinsing process can be moved from the washing device to the dewatering device.
  • the rinsing zone can thereby be absent in the washing device, whereby the washing device can be constructed simpler, in particular requires less space. Above all, the washing device no longer has to be designed to generate a counterflow of the treatment liquid.
  • the method according to the invention overall creates a space-saving washing line.
  • the rinsing of the laundry in dewatering presses is much more effective feasible than in the washing device. In this way, the flushing performance is improved and saved fresh water.
  • At least part of the bound liquor is removed from the laundry in the dewatering press before the actual rinsing of the laundry takes place in the dewatering press.
  • this initial removal of a portion of the bonded liquor from the laundry may already take place at the same time an initial rinse.
  • the bound liquor can be separated from the laundry very easily and, above all, more effectively than in the washing device. This can also be a more effective rinse done, which not only shortens the rinse cycle, especially contributes to the saving of fresh water, because effective rinse less fresh water is required if at least a large part of the bound liquor has been separated from the laundry.
  • the washing of the items of laundry in the respective dewatering press is carried out by a plurality of successive pressing operations.
  • a pressing pressure is exerted, which is the pressing pressure for dewatering the laundry, so the separation of a large part of the bonded liquor from the laundry, serves Because the previous press takes place with less pressure, the laundry items are when flushing in the respective dewatering press spared.
  • the laundry items are freed from part of their bound fleet. If part of the bound liquor has already been separated in the continuous washing machine prior to transfer of the laundry items to the dewatering press, another part of the bound liquor is removed during the pre-pressing of the items of laundry in the dewatering press. Before the laundry is rinsed, it is thus freed of a part, preferably at least one third, of the bound liquor.
  • the pre-pressing of the laundry items is carried out at a pressure between 3 and 10 bar, preferably about 4 to 6 bar. In this way, not only a large part of the bonded liquor is removed from the laundry, it also forms a kind of laundry cake during pre-compression, can be pressed through the liquid only under pressure.
  • the rewetting of the laundry items and the subsequent pressing through of the liquid with pressure through the laundry items takes place after following the Pre-compressing and starting up the press piston liquid has been supplied to the laundry items.
  • the liquid can always be freshwater. But it is also sufficient if only one last remoistening or some final operations of rewetting fresh water is used.
  • press liquid produced during prepressing can be used, which has been collected in a collection tank associated with the dewatering press. In this case, the bound liquor is repeatedly circulated through the laundry items for initial rinsing thereof.
  • the rewetting of the laundry items preferably takes place in such a way that so much liquid is applied to the laundry cake formed during the pre-pressing that forms a closed liquid layer, in particular a liquid column, with a certain height on the laundry cake.
  • This liquid can not infiltrate appreciably into the laundry cake without external pressure by the press ram, in particular do not flow through the laundry cake. It therefore remains on the laundry cake a closed liquid layer with a certain water level exist.
  • the liquid is also prevented from draining by a liquid-impermeable circulating press housing in which the laundry cake with the liquid layer applied thereto is located. The liquid of the liquid layer is then pressurized by shutting down the press ram and thereby pressed under pressure through the laundry items of the laundry cake.
  • the continuous washing machine has an elongated rotary drivable drum in which successive chambers are formed, wherein one or more chambers form a prewash zone and a final wash zone.
  • Such continuous washing machines have proven themselves in practice. They are so far quite long because of several successive zones. Characterized in that according to the invention, the rinsing no longer takes place in the continuous washing machine, this need not have additional rinsing zone with outer chambers for generating a counterflow, whereby the continuous washing machine is shorter and also has a simpler structure.
  • Such a simplified continuous washing machine with only one pre-wash zone and one final wash zone can also be used economically for the wet treatment of relatively small items of laundry.
  • the device shown here constitutes a washing line for wet-treating items of laundry, in particular for washing, rinsing and dewatering the same.
  • the apparatuses have a simplified continuous washing machine 10, which makes them suitable for washing smaller quantities of laundry from 150 kg compared to conventional continuous washing machines.
  • the continuous washing machine 10 has a drum 12 which is rotatable about a preferably horizontal axis of rotation 11.
  • a plurality of chambers 14 following one another in the direction of passage 16 of the items of laundry not shown are formed by transverse dividing walls 13.
  • An outer drum associated with at least a portion of the drum 12 need not have the continuous washing machine 10 due to the invention, and therefore the instant invention uses a continuous washing machine 10 without an external drum.
  • the drum 12 of the continuous washing machine 10 there are essentially only two treatment zones, namely a prewash zone 15 and a laundry in the direction of passage 16 of the laundry through the drum 12 to the prewashing zone 15 subsequent wash zone 17.
  • a prewash zone 15 and a laundry in the direction of passage 16 of the laundry through the drum 12 to the prewashing zone 15 subsequent wash zone 17.
  • the invention is not limited to continuous washing machines 10 having five consecutive chambers 14. Rather, the number of chambers 14 may differ from the embodiment shown. It may be sufficient if the continuous washing machine 10 has only a single chamber 14 for forming the prewash zone 15 and a single chamber 14 for forming the final wash zone 17. In general, however, the number of chambers 14 of the final wash zone 17 will be higher by one chamber 14 than the number of chambers 14 of the pre-wash zone 15.
  • the continuous washing machine 10 is followed by a single dewatering device, which is a dewatering press 18.
  • the items of laundry arrive from the continuous washing machine 10 via an unloading chute 19 arranged at the end thereof into the dewatering press 18.
  • the dewatering press 18 is designed in a manner known in principle. Accordingly, the dewatering press 18 has a top and bottom open press housing, preferably a cylindrical press basket 21 with a liquid-impermeable lateral surface and a movable up and down press ram 22, which is only hinted (dashed) in the figure.
  • the press ram 22 can be raised so far by a hydraulic cylinder that, in particular for loading the dewatering press 18, it is located above the press basket 21 and thus the upper opening of the press basket 21 completely releases.
  • the press ram 22 For dewatering and rinsing the items of laundry, the press ram 22 is moved into the press basket 21, wherein the press ram 22 is sealed substantially liquid-tight inside the outer surface of the press basket 21.
  • a collection tank 20 for the liquid pressed out of the laundry in the dewatering press 18 liquid, namely the bound liquor, which is also flushing liquid in the invention.
  • the dewatering press 18 is provided with at least one liquid supply for carrying out the method according to the invention. This opens either in the upper edge region of the press basket 21 or the liquid, which is suitable for rinsing liquid, for example, fresh water, is fed to the press basket 21 through the free opening at the top.
  • a plurality of dewatering presses 18 can be arranged, which can be used alternatively for rinsing and for dewatering the laundry items.
  • it is preferably provided to arrange the dewatering presses 18 movably on a path running transversely to the axis of rotation 11 of the drum 12 of the continuous washing machine 10, either independently of each other or together.
  • Such a web may be formed of parallel rails, whereupon the dewatering presses 18 are movable transversely to the passage direction 16 of the continuous washing machine 10.
  • Such a laundry storage is preferably designed as a tiltable container, which serves to receive at least one washed in a washing process in the continuous washing machine 10 Wäschepostens.
  • the container of the laundry storage is such downstream of the continuous washing machine 10, that the washed, but not rinsed laundry items at least a Wäschepostens over the discharge chute 19 at the rear end of the continuous washing machine 10 can get directly into the container of the laundry storage. From the container of the laundry storage the laundry items are tilted through the upper opening in the press basket 21 of the dewatering press 18 when it has become free to receive the new laundry item.
  • a plurality of drainage presses 18 in the presence of at least one laundry store of the continuous washing machine 10. Then preferably at least one laundry storage along a transverse to the axis of rotation 11 of the drum 12 of the continuous washing machine 10 running path is movable. Such a track can also be formed from parallel rails. The laundry storage can also be moved in other ways, for example on wheels.
  • the dewatering presses 18 can be arranged stationary behind the continuous washing machine 10, wherein between the continuous washing machine 10 and the dewatering presses 18 is the at least one laundry storage.
  • the laundry storage For picking up washed laundry items without the free liquor from the continuous washing machine, the laundry storage can be brought into a corresponding relative position to the discharge chute 19 of the continuous washing machine, so that washed laundry items can be transferred via the discharge chute 19 from the continuous washing machine 10 to the laundry storage. Subsequently, the laundry storage is moved to that dewatering press 18, which is currently free and from the laundry storage of the respective laundry items in the relevant dewatering press 18, namely from the top into the press basket 21 thereof, tipped.
  • the continuous washing machine 10 is rotationally driven during prewashing of a laundry item and the simultaneous clear washing of another Wäschepostens in a conventional manner, either rotationally rotating with several successive full circle rotations of the drum 12 or with several successive full circle rotations of the drum 12 or with successive pitch circle rotations of alternating directions of rotation ( pivoting drive).
  • the direction of rotation of the drum 12 of the continuous washing machine 10 during the pre-wash and during the clear wash once or several times changed by a rotating rotary drive of the drum 12 is carried out in phases with different directions of rotation, but in each direction the drum 12 is a plurality of full-circle Circulations.
  • At least a reversal of the direction of rotation of the drum takes place when transferring the items of laundry from the prewashing zone 15 into the final wash zone 17 and for simultaneously discharging the washed items of laundry through the end of the final wash zone 17 of the continuous washing machine 10.
  • the respective laundry item After the respective laundry item has been finally washed in the final wash zone 17, it leaves without the free liquor, but with at least a portion of the bonded liquor, preferably the entire bonded liquor, the continuous washing machine 10.
  • the respective laundry item with the bound Fleet or at least some of the same transferred to the at least one subsequent dewatering press 18, so the dewatering press 18 with the washed, but not yet rinsed laundry items, including therein at least for the most part still bound washing liquid (bound fleet) loaded.
  • the items of laundry are rinsed in the dewatering press 18 by a preferably multiple successive pressing, each with an at least partial dewatering of the laundry items, first freed from a portion of the bonded liquor before rinsing the laundry items takes place in the dewatering press 18.
  • rinsing the laundry items in the dewatering press 18 are freed in the usual way of a large part of the bonded liquor before the in Dewatering press 18 washed and mostly freed from the bonded liquor (dewatered) laundry items are discharged from the dewatering press 18.
  • the laundry items are first separated from the continuous washing machine 10 by a part of the bonded liquor by pre-pressing.
  • the pre-pressing is carried out by appropriately deep retraction of the press ram 22 in the press basket 28.
  • the pre-pressing is carried out at a pressure between 2 and 10 bar, preferably at about 5 bar.
  • this pre-pressing at least half of the bound liquor is removed from the laundry.
  • a large part of the bonded liquor is removed from the laundry items during pre-pressing, ie more than half of the bonded liquor.
  • the press ram 22 is raised in the press basket 21, that is, the pressure exerted by the press ram 22 on the items of laundry or the laundry cake is canceled.
  • the press ram 22 is raised so that liquid can be passed through the upper opening of the press basket 21 or through its cylindrical outer wall near the upper edge of the laundry to the laundry cake. In this way, a re-wetting of the laundry items of the laundry cake.
  • a closed liquid layer with a certain fill level extending over the entire cross section of the press basket 21 forms above the laundry cake.
  • This level depends on the type and amount of laundry. Preferably, the level corresponds to the height of the laundry cake or is lower. Due to the liquid-tight wall of at least the liquid-filled part of the press basket 21, the liquid remains above the laundry cake in the press basket 21st can not drain. This is also because when pressing the laundry items of the laundry cake are sealingly pressed against the inner wall of the press basket 21 and in this way a seal of the peripheral edge of the laundry cake against the inside of the wall of the press basket 21 comes about.
  • this liquid is pressed under pressure through the laundry items of the laundry cake in the press basket 21. This is done by a shutdown of the press ram 22, which presses on the liquid above the laundry cake and builds up a pressure in the liquid, which causes the liquid is forced through the laundry of the laundry cake with pressure. This leads to the effective rinsing of the laundry items.
  • the press ram 22 is pressed down so far in the press basket 21, that during rinsing or at the end of the respective rinsing process, the liquid, which is now a rinsing liquid, is removed from the laundry so far that one part, preferably a large part, the bound liquor of the liquid, in particular rinsing liquid, is removed from the laundry items to complete the respective rinsing process.
  • the liquid or rinsing liquid is forced through the laundry pieces of the laundry cake at a pressure of 3 to 10 bar, preferably 4 to 6 bar. With this pressure, therefore, the rinsing and subsequent dewatering of the laundry items in the press basket 21 takes place.
  • the pre-pressing of the laundry items is also carried out for the laundry cake. It is conceivable to use a lower pressure for pre-pressing than for forcing the liquid serving for rinsing through the laundry cake produced during the pre-pressing. For example, this pressure can be 1.2 times to 2 times higher than the pressure used for prepressing.
  • the final pressing of the fresh water used for rinsing is carried out by the laundry items of the laundry cake at a higher pressure than during pre-pressing and / or the first rinsing passages, to which then only a minor part and not necessarily a large part of the bonded liquor is removed from the laundry. That spares the laundry.
  • the items of laundry in the dewatering press 18 are for the most part freed from the bound liquor, namely rinsing water.
  • This final rinse water which has relatively low levels of contaminants, may be used to initially rinse the next batch of laundry in the dewatering press 18. Only then does the rinsing with fresh water. Also in this way the fresh water requirement can be significantly reduced compared to conventional methods.
  • both rinsing and dewatering of the laundry washed in the continuous washing machine 10 take place. Purging does not need to be performed in the continuous washing machine 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP06704365A 2005-02-11 2006-01-19 Verfahren und vorrichtung zur nassbehandlung von wäschestücken Active EP1848850B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005006559 2005-02-11
DE102005038142 2005-08-12
DE102005053086A DE102005053086A1 (de) 2005-02-11 2005-11-04 Verfahren und Vorrichtung zur Nassbehandlung von Wäschestücken
PCT/EP2006/000433 WO2006084550A1 (de) 2005-02-11 2006-01-19 Verfahren und vorrichtung zur nassbehandlung von wäschestücken

Publications (2)

Publication Number Publication Date
EP1848850A1 EP1848850A1 (de) 2007-10-31
EP1848850B1 true EP1848850B1 (de) 2012-10-17

Family

ID=36128382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06704365A Active EP1848850B1 (de) 2005-02-11 2006-01-19 Verfahren und vorrichtung zur nassbehandlung von wäschestücken

Country Status (7)

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US (2) US8075636B2 (da)
EP (1) EP1848850B1 (da)
JP (1) JP4847971B2 (da)
DE (1) DE102005053086A1 (da)
DK (1) DK1848850T3 (da)
ES (1) ES2397587T3 (da)
WO (1) WO2006084550A1 (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733135B2 (en) * 2005-02-11 2014-05-27 Herbert Kannegiesser Gmbh Method and device for wet treating laundry items
EP3094776A4 (en) * 2014-01-17 2017-11-29 ColorZen LLC Method and apparatus for pre-treatment of non-continuous textiles
EP3201383B1 (en) * 2014-10-03 2022-03-09 Pellerin Milnor Corporation Method for continuous batch tunnel washer
JP2018506652A (ja) * 2015-01-16 2018-03-08 カラーゼン・エルエルシー 不連続テキスタイルを前処理するための方法及び装置
CN109072527B (zh) * 2016-05-20 2022-02-25 佩莱若林·米尔诺公司 联合流动隧道
CN112251980B (zh) * 2020-09-25 2023-01-13 湖南中联重科应急装备有限公司 节水用水系统、节水用水方法和洗涤车
CN114318762B (zh) * 2022-01-14 2022-12-27 江苏川岛洗涤机械科技有限公司 一种隧道式洗衣机节水洗涤工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823602A (en) * 1952-06-05 1958-02-18 Internat Laundry Machinery Co Method and apparatus for washing and water-extracting clothes
US4118958A (en) * 1975-04-17 1978-10-10 Universal Towel Company Washing machines and rinsing machines
JPS52154266A (en) * 1976-06-18 1977-12-21 Tokyo Sensen Kikai Seisakusho Continuous washing machine
DE3040449A1 (de) * 1980-10-27 1982-05-27 Roland 8025 Unterhaching Beier Verfahren und anlage zum entwaessern von waesche
JPS60242895A (ja) * 1984-05-07 1985-12-02 ヘルベルト・カンネギーサー・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニイ 洗浄物を脱水する装置
US4676079A (en) * 1984-10-19 1987-06-30 Herbert Kannegiesser Gmbh & Co. Appliance for draining washed laundry articles
EP1076127B1 (de) * 1999-08-11 2006-10-18 Pharmagg Systemtechnik GmbH Verfahren und Vorrichtung zur Nassbehandlung von Wäschestücken
DE10109749A1 (de) * 2001-02-28 2002-09-05 Pharmagg Systemtechnik Gmbh Verfahren zur Nassbehandlung von Wäschestücken

Also Published As

Publication number Publication date
DK1848850T3 (da) 2013-02-04
WO2006084550A1 (de) 2006-08-17
US20100146711A1 (en) 2010-06-17
US20120060564A1 (en) 2012-03-15
EP1848850A1 (de) 2007-10-31
DE102005053086A1 (de) 2006-08-17
JP4847971B2 (ja) 2011-12-28
US8075636B2 (en) 2011-12-13
JP2008529620A (ja) 2008-08-07
ES2397587T3 (es) 2013-03-08

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