EP0030691A1 - Procédé pour le lavage simultané de charges de linge de types différents dans une machine à laver du type à transfert de charges continu et de telles machines à laver pour la mise en oeuvre de ce procédé - Google Patents

Procédé pour le lavage simultané de charges de linge de types différents dans une machine à laver du type à transfert de charges continu et de telles machines à laver pour la mise en oeuvre de ce procédé Download PDF

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Publication number
EP0030691A1
EP0030691A1 EP80107677A EP80107677A EP0030691A1 EP 0030691 A1 EP0030691 A1 EP 0030691A1 EP 80107677 A EP80107677 A EP 80107677A EP 80107677 A EP80107677 A EP 80107677A EP 0030691 A1 EP0030691 A1 EP 0030691A1
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EP
European Patent Office
Prior art keywords
washing
laundry
shut
line
compartment
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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
EP80107677A
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German (de)
English (en)
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EP0030691B1 (fr
Inventor
Heinz Grunewald
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.)
Engelhardt and Forster KG
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Engelhardt and Forster KG
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Publication of EP0030691A1 publication Critical patent/EP0030691A1/fr
Application granted granted Critical
Publication of EP0030691B1 publication Critical patent/EP0030691B1/fr
Expired legal-status Critical Current

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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
    • D06F31/005—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies consisting of one or more rotating drums through which the laundry passes in a continuous flow

Definitions

  • the invention relates to a method for the simultaneous washing of different types of laundry, which consist, for example, either of white laundry or colored laundry, in a continuous washing machine with several washing zones, each with several washing compartments, in which the washing machine at the start of the washing machine in the area of the loading or soaking zone one after the other in cycles into the washing machine entered laundry items are automatically transferred to the next washing compartment after a predetermined treatment or cycle time and are dispensed in cycles at the end of the washing machine.
  • different types of laundry consist, for example, either of white laundry or colored laundry
  • the invention further relates to a continuous washing machine for washing laundry, which is particularly suitable for carrying out the aforementioned method and has a washing drum which can be driven about its longitudinal axis and whose washing compartments, which are essentially bath-wise separate from one another during washing, are each connected to an adjacent washing compartment by a counterflow line, through which When transporting the laundry items from one washing compartment to the next, a partial flow of the liquid supplied to the washing compartment located at the end of the drum via a feed line in countercurrent to the item that is fed in batches to a washing compartment located at the beginning of the drum, the washing compartments being passed through the washing machine in cycles and with one Soaking line through which the rest of the liquid supplied at the end of the drum is to be directed from the rinsing zone at the end of the drum to the loading and soaking zone at the beginning of the drum.
  • the so-called countercurrent Process preferred for various reasons, in which fresh water is supplied to the washing zone (rinsing zone) at the end of the washing machine via a feed line, which then flows through the machine after leaving the rinsing zone with a partial flow in counterflow to the laundry, while the predominant residual flow flows through the supply at the washing machine end Liquid is supplied to the loading and soaking zone located at the beginning of the washing machine via a connection which is referred to here as a soaking line.
  • the countercurrent process is to be preferred over other known washing processes simply because the percentage of water required is smaller by the amount (for example 25%) through which the washing machine flows in countercurrent to the laundry.
  • Washing laundry in a countercurrent continuous washing machine is unproblematic, as long as there are only items of the same type (e.g. only white laundry) in the washing machine at the same time, which are not only to be treated equally, but also cannot adversely affect one another.
  • the latter can be the case, for example, when washing items of various types, for example washing items consisting of white laundry on the one hand and washing items consisting of colored laundry on the other hand, are entered into such a washing machine in any sequence, and themselves can then be found in the washing machine at the same time. Under such circumstances, dyeing of the colored laundry with wash liquor or discolored rinse water can lead to discoloration of the white laundry if the countercurrent process, which is desirable for reasons of economy, is practiced.
  • white washing in certain washing zones is to be treated at higher temperatures than colored washing, so that such aspects also prevent the countercurrent process from being carried out in such cases.
  • the present invention has for its object to provide a washing method of the type described above, with which the washing process compared to known methods for the simultaneous washing of different types of laundry items by saving water, washing and washing aids and energy can be carried out considerably more economically.
  • the present invention is intended to provide a continuous washing machine of the type described at the outset, by means of which the washing method according to the invention is to be carried out, and which is also suitable for washing similar items of laundry in a manner known per se using the economical countercurrent method.
  • laundry items of a predominantly existing first type for example white laundry
  • laundry items of a second type present to a lesser extent for example Colored laundry or pieces of wool
  • the partial stream flowing in countercurrent to the laundry being fed from a washing compartment containing first type laundry, bypassing a washing compartment containing second type laundry, to the next washing compartment lying in the countercurrent direction and containing first type laundry becomes.
  • washing method according to the invention it is therefore not only possible to dispense with the investment for a further, generally smaller washing machine for washing laundry which is present in a lesser extent (for example colored laundry), but one also achieves the advantage that one can do this to a greater extent existing laundry of the first kind, e.g. White laundry that maintains or can maintain the advantages of the countercurrent process and does not have the disadvantages of a multi-wash process without a second washing machine, which is only practiced in the less extensive second-type laundry.
  • a washing machine for washing laundry which is present in a lesser extent (for example colored laundry
  • the countercurrent lines each have a controllable, i.e. here either opening or closing shut-off device are provided, and that the washing compartments are also each connected via a line section having a controllable shut-off device to a common connecting line, which is provided in each case with a controllable shut-off device between two adjacent washing compartments.
  • the present invention is particularly applicable to so-called double drum washing machines, in which the washing compartments of the inner washing drum are each connected to the space between the washing drum and the fixed outer drum through through openings, these spaces assigned to the individual washing compartments being at least substantially sealed off from one another, since in double drum continuous washing machines, the arrangement and configuration of the individual lines according to the invention can be implemented in a particularly simple and expedient manner. In principle, however, it can also be implemented in so-called single-drum machines if, due to their design, they permit the arrangement of the various lines according to the invention, as is the case, for example, with a known single drum machine is the case in which lip seals are present between two adjacent washing compartments, between which stationary line ends are to be inserted into the drum even when the drum is rotated.
  • Fig. 1 shows a highly schematic representation of a central portion of a continuous washing machine for batch washing of laundry, in the manner of a circuit diagram relating to the lines essential for the invention, further existing lines being omitted for the sake of clarity, which are further below will be explained with reference to FIG. 3.
  • the washing machine designated as a whole by 20, has a washing drum 22 which can be rotated about its longitudinal axis 21, it basically being arbitrary and accordingly initially left open as to whether it is a single or double drum machine.
  • the washing drum 22 has a number of washing compartments 23 which are separated from one another in terms of bath during the washing process, only a few of these washing compartments 23 being shown in FIG. 1, which for the sake of better explanation are provided with ordinal numbers .1, .2 etc. are.
  • each washing compartment 23 is connected to one another by a counterflow line 10, through which, after carrying out a washing cycle, the items of laundry are transported in the direction of arrow 24 from a washing compartment into The next is a partial flow of the washing compartment located at the end of the drum, not shown, belonging to the rinsing zone, via a liquid, not shown in FIG. 1 (explained further below with reference to FIG. 3), in countercurrent to the laundry - that is, counter to the arrow 24 - in the next washing compartment is to be transferred.
  • the symbolsstromleitun g s 10 are each provided with a means of a programmed control means selectively openable or closable shut-off device. 4
  • the washing machine 20 has a in Figure 1, also not shown and described below with reference to Figure 3 explained Einweichtechnisch, -.. By which the remainder of the fed in the washing zone on the drum end of the liquid, which does not as part of stream counter-current to the laundry by the The machine flows and is directed from the rinsing zone directly to the loading and soaking zone at the beginning of the drum.
  • the washing compartments 23 are also each connected via a line section 11 to a common connecting line 12, wherein between the drum 22 and the connecting line 12 in the line sections 11 in each case a controllable, i.e. shut-off element 2 is optionally arranged to be opened or closed.
  • shut-off device 3 which can be opened or closed and can be controlled by means of the control device mentioned.
  • the washing machine 20 operates according to the normal countercurrent principle.
  • the washer 22 is thus driven in reversing manner during a washing cycle and performs an oscillating pivoting movement (for example, 90 or 180 0) 21 about its longitudinal axis after completion of the washing cycle makes the washing drum 22 then one complete turn, wherein a respective in-one washing compartment 23 of laundry together with the essential portion of the washing liquid located in this washing compartment 23 is conveyed in the direction of arrow 24 into the adjacent washing compartment 23, which can be done, for example, by means of a spiral slide or the like. trained transport device can take place.
  • part of the wash liquor located in this next wash compartment 23 flows via the counterflow line 10 connecting these two wash compartments, counter to the arrow 24, into the adjacent wash compartment etc.
  • shut-off devices 4 present in the counterflow lines 10 are opened and the shut-off devices 3 located in the connecting line 12 and the shut-off devices 2 present in the line sections 11 are closed, a closed state of shut-off devices being illustrated in the drawing in that these are each black, while open shut-off devices are only shown with a border.
  • the lines 11 and 12 and the shut-off elements 2 and 3 therein are also known from known countercurrent washing machines.
  • washing compartment 23.3 laundry of a second type, in the present example colored laundry, normal countercurrent operation cannot be maintained in the area of this washing compartment 23.3, since this would lead to discoloration of the white laundry in the washing compartment 23.2.
  • the shut-off device 4.3 assigned to the washing compartment 23.3 in the counterflow line 10.3 is closed.
  • the shut-off device 4.4 is closed in the counterflow line 10.4 connecting the washing compartment 23.4 to the washing compartment 23.3, and the shut-off device 2.3 located in the line section 11.3 is also closed, so that the washing compartment 23.3 containing colored laundry is thus, as it were, encapsulated from its surroundings and does not influence it , can also be influenced by this.
  • the shut-off device 2.4 in the line section 11.4 and the shut-off device 2.2 in the line section 11.2 are opened. Furthermore, the shut-off device 3.3 and 3.4, which are located between the line sections 11.2 and 11.4, are opened, so that the countercurrent liquid from the washing section 23.4, thus bypassing the washing section 23: 3 via the line section 11.4, a section containing the shut-off devices 3.4 and 3.3
  • the connecting line 12 and the line section 11.2 can flow into the next whitewashing compartment 23.2, from where normal countercurrent operation then continues analogously to FIG. 1a.
  • shut-off devices in their open or closed position, depending on the current loading condition, is unproblematic, since they can be easily controlled by means of a programmed computer, it being only necessary to enter what type of the input into the computer is the wash item entered.
  • the counterflow lines 10 which are formed separately in the embodiment according to FIG. 1, the connecting line 12 and the line sections 11 connecting the connecting line 12 to the washing drum can partially coincide, as is shown in FIG. 2, in which case 2, the counterflow lines 10 each make use of a section of the connecting line 12 and the line sections connecting the washing drum 22 to the connecting line 12 also represent a further section of the respective counterflow line 10, in which the shut-off device 2 is then arranged.
  • Fig. 2a shows the state in an analogous manner to Fig. 1a pure countercurrent principle, in which there is only one type of laundry (eg white laundry) in the washing drum 22. 2a, the shut-off devices 3 located in the connecting line 12 are then closed.
  • a type of laundry eg white laundry
  • washing compartment 23.3 there is colored laundry in a washing compartment 23.3 according to FIG. 2, the normal countercurrent operation from washing compartment to washing compartment from the end of the washing drum only takes place as far as the washing compartment 23.5, while the washing compartment 23.3 containing colored laundry is in turn encapsulated against its surroundings, as described above has already been explained with reference to FIG. 1b.
  • shut-off devices 2.3 and 4.3 assigned to the washing compartment 23.3 are therefore closed, while the shut-off device 3.3 located between them in the connecting line 12 is open, so that the counter-current liquid from the washing compartment 23.4 against the washing direction according to arrow 24 through the opened shut-off device 4.4 via the connecting line 12 , the open shut-off element 3.3 located therein and the open shut-off element 2.2 can flow into the wash compartment 23.2 bypassing the wash compartment 23.3.
  • washing process in the countercurrent principle is by no means necessarily reserved for example white laundry, while, for example, colored laundry or woolen items to be washed are washed in the multi-liquor process, as is explained in more detail below, but that the mode of operation is optimized to optimize economy Appropriately so provides that the predominant amount of laundry is washed in a countercurrent process, while the less extensive laundry is treated according to the multi-liquor process.
  • FIG. 3 shows, in a line circuit diagram completed with respect to FIGS. 1 and 2, a continuous washing machine 20 designed as a double drum machine, the rotatable washing drum not being shown in FIG. 3, but rather the outer drum thereof in a schematic representation.
  • the representation according to FIG. 3 is more or less a line circuit diagram, so that the relative arrangement of the lines to one another and to the drum of the actual arrangement (for example in terms of height) chosen for the sake of a better overview goes without saying does not match.
  • the outer drum of the washing machine 20 has washing compartments A to K, the items to be washed being entered in batches into the washing compartment A, which therefore represents the loading zone and, together with the washing compartment B, the soaking zone.
  • the washing compartments C to G are washing compartments assigned to individual washing zones, while the washing compartments H to K represent the washing zone.
  • a feed line 13 is shown, through which fresh water is introduced into the washing compartment K of the washing zone.
  • the feed line 13 continues to the washing compartment C and is connected to each washing compartment C to K via a line section 14, with a shut-off device 6 which can be opened or closed optionally being present in each line section 14.
  • a line 15, referred to here as a soaking line extends along the washing machine to the front to the first washing compartment A.
  • a pump P by means of which approximately 75% of the washing liquid added at the end of the drum is conveyed to the washing compartment A after leaving the rinsing zone, while the remaining liquid - i.e. about 25% - flows through the washing machine 20 in countercurrent, that is to say in the opposite direction to the running direction of the laundry according to arrow 24, as further is explained below.
  • the outer drum of the washing machine 20 is connected on its underside to a so-called drain box 16, to which steam can also be introduced for the selective heating of certain washing compartments or washing zones, but this will not be discussed further here.
  • a so-called drain box 16 of the washing compartments C to - G and the Spülabmaschine H to K of each of the line segments 11 is a provided with a controllable shut-off device 2 line section 11 to an already explained with reference to Figure 1, connecting line 12 between the junctions in the connecting line 12th 1 or 2, a controllable shut-off device 3 is arranged in each case.
  • the pulsator of a washing compartment thus has an opening in an intermediate container which is above the normal washing liquid level in the direction of rotation of the washing drum base on the circumference and which has a counterflow line 10 opening below the normal washing liquid level into a washing compartment arranged upstream of the arrow 24, with a controllable one in each counterflow line 10 Shut-off device 4 is arranged.
  • a discharge line 17 opening into an outlet channel 17 ' is present, which with each washing compartment A to K is connected via a line 18, in each of which a controllable shut-off device 1 is arranged.
  • the drain line 17 there are in the area of the washing compartments B to K overflow plugs 19 which are assigned to the individual washing compartments.
  • washing compartments A to K are drawn, from which it can be seen whether there is white laundry or colored laundry in a washing compartment, in the latter case the relevant box is hatched.
  • the residual current not flowing as a partial flow in counterflow through the washing machine 20 flows from the washing compartments H, I and K belonging to the washing zone via the overflow plugs 119 into the right-hand part of the drain line 17, which is closed by a shut-off device 5 to the channel 17 ', so that this liquid from the overflow stopper 19 and an open shut-off device 5 ', which is located in a connecting line between the drain line 17 and the soaking line 15 and by means of the pump P in the washing compartment A.
  • the drum turns over 36 0 °, each wash item in the direction of arrow 24 together with the majority of the washing liquid in the adjacent washing compartment.
  • the counterflow liquid flows via the counterflow lines 10 and through the opened shut-off elements 4 against the arrow 24 into the adjacent washing compartment, etc.
  • the washing compartment C is reached (Fig. 3e), in which a pre-wash takes place, so the washing compartment C towards the adjacent washing compartment is used for encapsulation D the shut-off device C4 is closed and the shut-off device C1 is opened again during the subsequent transport operation into the washing compartment D according to FIG. 3f, so that the washing compartment C is connected to the channel 17 'via the drain line 17.
  • a bath change then takes place in the washing compartment D, the shut-off element D1 being opened to the drain line 17.
  • new washing liquid flows to the washing compartment D via the feed line 13 and the line section 14 connecting the feed line 13 to the washing compartment D, the shut-off device D6 in the line D14 being open.
  • the new washing liquid can also flow to the washing compartment D from a storage container V via the line 14, in which the liquid can already be preheated to, for example, 60 ° C.
  • the shut-off elements C4 are in the counterflow line D / C connecting the washing compartments D and C and the shutoff element D4 in the counterflow line E / D10 connecting the washing compartments E and D. closed, while the shut-off device D3 in the connecting line 12 and the shut-off devices E2 and C2 in the line sections E11 and C11 are open, so that on the one hand the colored laundry located in the washing compartment D is encapsulated from its surroundings, and on the other hand during the subsequent transport process according to FIG. 3i counterflow liquid can flow from the washing compartment E bypassing the washing compartment D into the washing compartment C.
  • shut-off devices E4 and D4 are closed, while the shut-off devices F2, E3, D 3 and D2 are open, so that countercurrent liquid can flow from the washing compartment F into the washing compartment D bypassing the washing compartment E filled with colored laundry.
  • normal countercurrent operation then takes place again between the washing compartments D and C via the countercurrent line D / C10 and the opened shut-off device C4.
  • the shut-off devices 6 are, for example, organs which can be designed as double valves, with the flow rate being set in one valve and the other valve being controllable only in the open or closed position.
  • the circuits of the respective shut-off devices are then respectively corresponding, i.e. in such a way that a washing compartment containing colored laundry is bypassed, while maintaining counter-current operation, via a "moving by-pass" which is implemented on the basis of the control of the shut-off elements.
  • the washing item consisting of colored laundry is transported from washing compartment G into washing compartment H (FIG. 3p)
  • the colored laundry item reaches the rinsing zone, the rinsing phase for the colored laundry then being able to take place in the flowing overflow process.
  • the particular advantage of the invention is that with simultaneous washing of different types of laundry in an economically desirable manner for a predominantly existing type of laundry, the countercurrent process, which is generally recognized as being advantageous, can be carried out, while laundry of the second type can be washed in the same machine at the same time without there being any mutual negative influence, whereby the economically unfavorable way of washing according to the multi-lye process is therefore restricted only to the second type of laundry which is available to a lesser extent.
  • shut-off devices which are available as basic equipment for every continuous machine due to the necessary washing programs, and require an overall investment that is neither comparable with the otherwise necessary investment costs for a second washing machine, nor in the long term with the economic losses in the implementation of the multi-alkali process for all laundry items .

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  • 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)
EP80107677A 1979-12-07 1980-12-06 Procédé pour le lavage simultané de charges de linge de types différents dans une machine à laver du type à transfert de charges continu et de telles machines à laver pour la mise en oeuvre de ce procédé Expired EP0030691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2949228 1979-12-07
DE2949228A DE2949228C2 (de) 1979-12-07 1979-12-07 Durchlaufwaschmaschine

Publications (2)

Publication Number Publication Date
EP0030691A1 true EP0030691A1 (fr) 1981-06-24
EP0030691B1 EP0030691B1 (fr) 1983-08-31

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EP80107677A Expired EP0030691B1 (fr) 1979-12-07 1980-12-06 Procédé pour le lavage simultané de charges de linge de types différents dans une machine à laver du type à transfert de charges continu et de telles machines à laver pour la mise en oeuvre de ce procédé

Country Status (5)

Country Link
US (1) US4478060A (fr)
EP (1) EP0030691B1 (fr)
DD (1) DD155187A5 (fr)
DE (1) DE2949228C2 (fr)
WO (1) WO1986003526A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2885451A4 (fr) * 2012-08-20 2015-09-23 Pellerin Corp Milnor Tunnel de lavage en fonctionnement continu et procédé

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US4363090A (en) * 1980-08-01 1982-12-07 Pellerin Milnor Corporation Process control method and apparatus
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DE3341504A1 (de) * 1983-11-17 1985-05-30 Senkingwerk GmbH, 3200 Hildesheim Gegenstrom-taktwaschmaschine
US4829792A (en) * 1987-07-27 1989-05-16 Brent Keith M Double drum batch washing machine
US5426958A (en) * 1993-05-24 1995-06-27 Surry Chemicals, Inc. Commercial bleaching apparatus
US5487283A (en) * 1993-05-24 1996-01-30 Surry Chemicals, Inc. Prescour bleaching tunnel
DE19941088B4 (de) * 1999-08-30 2006-06-01 Pharmagg Systemtechnik Gmbh Verfahren zum Naßbehandeln, insbesondere Waschen, von Wäschestücken
DE10039904B4 (de) * 2000-08-16 2005-12-15 Senkingwerk Gmbh Verfahren zum Waschen von Wäsche in einer tanklosen Waschstrasse sowie Waschstrasse zur Durchführung des Verfahrens
DE10105820B4 (de) * 2001-02-07 2014-11-27 Herbert Kannegiesser Gmbh Verfahren zum Waschen von insbesondere Wäschestücken
JP3809577B2 (ja) * 2001-04-03 2006-08-16 株式会社日立製作所 放射性物質除染方法及び放射性物質除染装置
DE10162800A1 (de) * 2001-12-19 2003-07-03 Lavatec Ag Badwechselmaschine und Verfahren zum Betreiben derselben
US9127389B2 (en) * 2009-04-22 2015-09-08 Pellerin Milnor Corporation Continuous batch tunnel washer and method
EP2576883B1 (fr) * 2010-06-03 2017-08-02 Pellerin Milnor Corporation Procédé de lavage du linge dans un tunnel de lavage séquentiel
JP7053495B2 (ja) * 2016-05-20 2022-04-12 ペレリン ミルナー コーポレイション 組合せ流れトンネル

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Publication number Priority date Publication date Assignee Title
EP2885451A4 (fr) * 2012-08-20 2015-09-23 Pellerin Corp Milnor Tunnel de lavage en fonctionnement continu et procédé
US9745683B2 (en) 2012-08-20 2017-08-29 Pellerin Milnor Corporation Continuous batch tunnel washer and method

Also Published As

Publication number Publication date
EP0030691B1 (fr) 1983-08-31
DD155187A5 (de) 1982-05-19
US4478060A (en) 1984-10-23
DE2949228C2 (de) 1986-04-17
WO1986003526A1 (fr) 1986-06-19
DE2949228A1 (de) 1981-06-11

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