EP0790798B1 - Verfahren zum dosieren eines teilchenförmigen wasch- oder reinigungsmittels und dazu geeignete vorrichtung - Google Patents
Verfahren zum dosieren eines teilchenförmigen wasch- oder reinigungsmittels und dazu geeignete vorrichtung Download PDFInfo
- Publication number
- EP0790798B1 EP0790798B1 EP95936567A EP95936567A EP0790798B1 EP 0790798 B1 EP0790798 B1 EP 0790798B1 EP 95936567 A EP95936567 A EP 95936567A EP 95936567 A EP95936567 A EP 95936567A EP 0790798 B1 EP0790798 B1 EP 0790798B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent
- mixing vessel
- water
- balance
- pan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
-
- 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
- A47L15/42—Details
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
Definitions
- the invention relates to a method for automatic, quantity-controlled Dosing a particulate detergent or cleaning agent from one Storage container in a commercial washing machine or dishwasher.
- the detergent or cleaning agent is mixed with water and this Mixture conveyed into the washing machine or dishwasher.
- Processes of this type are preferably found in commercial dishwashing processes or commercial washing process application.
- the flushing or Detergent which is also called “product” in one Storage containers permanently kept in sufficient quantities and the product is automatically added to the fresh water or circulating water when required added.
- Dosing devices and dosing processes have been developed for this purpose have been used to control powdered detergents in each Machine, for example in the rinsing room of a commercial dishwasher can be introduced. Such a dosing process is known from DE 37 21 381 A1.
- a given volume in the Given the rinsing space of the powder dosing device and with water in the usually washing or cleaning machine arranged below the metering device washed in.
- volumetric dosing process sets that the products used always have the same bulk density to have.
- the volumetric dosage according to this procedure also goes the angle of repose of the product. Fluctuations in trickle behavior and in However, the grain size distribution leads to different angles of repose and thus to an inaccurate dosage.
- the inaccuracies in the dosage can be accepted in practice, however Desire for a more precise dosage to reduce the consumption of detergents and cleaning agents to be able to optimize.
- One such method is for dosing detergents or cleaning agents not suitable. Will those for commercial washing or cleaning operations usual amounts, for example 500 g, from the portion container Washed in water, the product clumps and can not be used with conventional Pump or feed into the machine through normal pipes. In addition, caking forms in the induction channel, which further induction First make quantities difficult and then make them impossible.
- the invention is therefore based on the object of an inexpensive metering method to create of the type mentioned, with the washing or Detergents for commercial washing or cleaning processes usual amounts can be dosed exactly and washed in without any problems.
- This object is achieved in that the washing or Detergent continuously or in portions on a weighing pan a scale and when a predetermined target weight is reached feeds a mixing container from the weighing pan, at the same time water into the Mixing container can flow and a ratio of at most 5 kg per min supplied detergent or cleaning agent to 8 1 water per min. It is particularly important that the detergent or cleaning agent introduces water into the mixing container at the same time and at the same time the stated feed ratio of detergent or cleaning agent and water complies with. The total amount of product to be dosed does not become abrupt brought together with water, but only gradually. In this way is a cost-effective, weight-accurate dosage of the product in the each machine reached without induction problems or Caking comes. The precise dosing enables control and optimization of detergent or cleaning agent consumption.
- the inflow ratio adapted from detergent or cleaning agent to water for each product become. If products made by spray drying are washed in, for example, there should only be a maximum of 2.2 kg per minute with a water inlet of 8 1 are introduced into the mixing container. For products with a bulk density of more than 600 g / l, the so-called heavy powder, this limit is higher, namely 5 kg of product per minute, also related on an inflow of 8 1 water per min.
- the detergent through an outlet provided with a controllable closure in the weighing pan and the mixing container located below the weighing pan feeds and the outlet partially or completely according to the desired wash or cleaning agent leakage rate opens.
- the outlet can for example be designed as a flap or a slide.
- the weighing pan as a funnel with an opening at the lowest point is trained.
- the adjustable closure can then be placed at this opening to be appropriate.
- a particularly good mixing of the detergent or cleaning agent with the for running water in the mixing container and a correspondingly easy flushing in of the product in the respective machine is achieved if you do that Allow water to flow tangentially into the mixing tank.
- the product and the water are mixed well without any additional Aid, for example a stirrer, is required.
- the storage containers for detergents or cleaning agents for commercial Washing machines or dishwashers usually contain larger quantities, for example 60 kg of product. Above these reservoirs that is often Sales containers, for example a sack with 250 kg, attached, with which the Storage container of the dosing device is filled as required. The over a longer period in the storage container and in the sales container Stored product tends to cake due to its hygroscopic components and to form clumps.
- the agglomerates can both in the feed of the product from the storage container into the weighing pan as well as at slow feeding according to the invention with simultaneous water flushing into the mixing bowl.
- the washing or cleaning agent through in the bottom of the storage container provided openings on the weighing pan arranged below can trickle, with a stirrer immediately above this Openings rotates.
- the openings in the storage container are advantageous chosen at most so large that the typically occurring lumps and Agglomerates cannot pass through the openings. Which Stirrer rotating above the opening smashes these agglomerates, and only finely divided product trickles onto the weighing pan.
- a volumetric Predosing may be provided. This includes the detergent or cleaning agent through the openings designed as metering holes to one arranged below Collecting plate from which you can get the portions formed in this way over the edge of the collecting plate and onto the weighing pan trickles. So much product trickles through the single dosing hole, until a frustoconical unit with the angle of repose of the corresponding Slope on the edge of the dosing hole. Another powder can only flow down through the hole if existing portions are present Amounts of product have been pushed aside. This volumetric dosage is explained in detail in DE 37 21 381 A1.
- the method according to the invention can be carried out in different ways.
- the whole is dosed for one wash or the amount of weight of washing or Detergent into the mixing container and in a single step thence into the washing machine or dishwasher and thus leads one Basic dosage by.
- a needs-based dosing with simultaneous control of the dosed Weight amount of detergent or cleaning agent is in the range possible with this invention.
- the individual portions are weighed So not to determine the total amount of product required, but for measuring consumption.
- the amount of weight added can be displayed saved or printed out at the end of a working day.
- the respective Product requirements and disruptions in the washing or rinsing process can be easily captured.
- This variant can be used, for example, to pulse 10 g of the product admit, count the pulses and stop adding these servings, if the conductivity measured in the respective machine reaches its setpoint has reached.
- the setpoint of Conductivity only reached with a higher amount of product.
- the setpoint of Conductivity can thus be a needs-based Dosage while checking the amount of weight used Reach product.
- the invention relates not only to a metering method, but also to one suitable device for carrying out the method with a storage container and a mixing tank connected to a water pipe.
- a weighing pan attached above the mixing container a scale and a partially and completely openable controllable one Closure of an outlet opening of the weighing pan.
- the closure is preferably designed as a flap or slide.
- the weighing pan advantageous as a funnel with an opening at the lowest point educated.
- a particularly good mixing and flushing of the product is achieved by a tangential inflow direction of the water pipe into the mixing tank reached.
- a detergent is metered into one or more washing machines in a commercial laundry.
- the detergent is filled from a sales container, a sack with 250 kg content, into a storage container 1, which has a capacity of 60 kg.
- a volumetric metering device is arranged in the lower region of the storage container and is explained in more detail below.
- FIG. 1 shows only a stirrer 3 which is driven by a motor 2 and breaks up agglomerates which have been caked together by the influence of moisture.
- approximately 30 cm 3 of detergent fall down through openings 4 in the bottom of the storage container 1 onto a funnel-shaped weighing pan 5 which is connected to an electronic scale 6.
- the particulate detergent trickles into the funnel neck, from one Flap 7 is closed.
- the target weight is reached, it opens the flap 7 and the detergent fall into the mixing container 8.
- the cleaning container 8 is a spray drying product Laundry detergent.
- the flap 7, the locking mechanism of an electronics 9 is controlled, opens only so far that 2.0 kg of detergent trickles into the mixing container per minute.
- Via a line 10 is simultaneously 8 liters of water per minute tangentially flushed into the mixing container.
- FIG. 2 shows a top view of one in the lower part of the storage container 1 arranged plate 13 with three dosing holes 14.
- dosing rotate four stirring arms 15 of a stirrer 16 and smashed by exposure to moisture clumped detergent into small, easy-to-dose particles.
- the particulate detergent falls through the metering holes 14 onto the in Figure 3 shown collecting plate 17.
- the resulting frustoconical Dosing portions 18 are from rotating wipers 19 on the respective edge 20 of the opening 4 pushed so that the metering portions the weighing pan 5 trickle.
- the dosing holes have a diameter of 18 mm, and the distance between the collecting plate 17 and the plate 13 is 10 mm.
- the distance between the collecting plate 17 and the plate 13 is 10 mm.
- others can also Dimensions may be provided, with the angle of repose depending on the product can be taken into account.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detergent Compositions (AREA)
- Washing And Drying Of Tableware (AREA)
Description
- Figur 1
- eine schematische Darstellung eines zur Durchführung des erfindungsgemäßen Verfahrens geeigneten Gerätes,
- Figur 2
- eine Aufsicht auf eine im unteren Bereich des Vorlagebehälters der Einrichtung nach Figur 1 angeordnete Platte mit Dosierlöchern und einem Rührer und
- Figur 3
- eine Aufsicht auf einen Auffangteller mit Abstreifmechanik, der unterhalb der in Figur 2 dargestellten Platte montiert ist.
- 1
- Vorlagebehälter
- 2
- Motor
- 3
- Rührer
- 4
- Öffnungen
- 5
- Waagschale
- 6
- Waage
- 7
- Klappe
- 8
- Mischbehälter
- 9
- Elektronik (Steuerung)
- 10
- Leitung
- 11
- Bypass
- 12
- Pumpe
- 13
- Platte
- 14
- Dosierloch
- 15
- Rührarm
- 16
- Rührer
- 17
- Auffangteller
- 18
- Dosierportion
- 19
- Abstreifer
- 20
- Kante
Claims (15)
- Verfahren zum selbsttätigen, mengengesteuerten Dosieren eines teilchenförmigen Wasch- oder Reinigungsmittels aus einem Vorlagebehälter in eine gewerbliche Wasch- bzw. Geschirrspülmaschine, wobei das Wasch-oder Reinigungsmittel mit Wasser gemischt und diese Mischung in die Wasch- bzw. Geschirrspülmaschine gefördert wird,
dadurch gekennzeichnet,
daß man das Wasch- bzw. Reinigungsmittel kontinuierlich oder portionsweise auf eine Waagschale einer Waage aufbringt und beim Erreichen eines vorgegebenen Sollgewichts von der Waagschale einem Mischbehälter zuführt, gleichzeitig Wasser in den Mischbehälter strömen läßt und dabei ein Verhältnis von höchstens 5 kg pro min zugeführtes Wasch- bzw. Reinigungsmittel zu 8 l Wasser pro min einhält. - Verfahren nach Anspruch 1 zum Dosieren eines durch Sprühtrocknung hergestellten Wasch- oder Reinigungsmittels,
dadurch gekennzeichnet,
daß man höchstens 2,2 kg des Wasch- oder Reinigungsmittels pro min bezogen auf einen Wasserzulauf von 8 l pro min in den Mischbehälter einbringt. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß man das Wasch- bzw. Reinigungsmittel durch einen mit einem ansteuerbaren Verschluß versehenen Auslaß in der Waagschale dem unterhalb der Waagschale angeordneten Mischbehälter zuführt und dabei den Auslaß teilweise oder vollständig entsprechend der gewünschten Auslaufrate des Wasch- oder Reinigungsmittels öffnet. - Verfahren nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet,
daß der Verschluß eine Klappe oder ein Schieber ist. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Waagschale als Trichter mit einer Öffnung an der tiefsten Stelle ausgebildet ist. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß man das Wasser in tangentialer Richtung in den Mischbehälter einströmen läßt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß man das Wasch- oder Reinigungsmittel durch im Boden des Vorlagebehälters vorgesehene Öffnungen auf die darunter angeordnete Waagschale rieseln läßt, wobei sich ein Rührer unmittelbar oberhalb dieser Öffnungen dreht. - Verfahren nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet,
daß das Wasch- oder Reinigungsmittel durch die als Dosierlöcher ausgebildeten Öffnungen auf einen darunter angeordneten Auffangteller fällt, von dem man die auf diese Weise gebildeten Portionen über den Rand des Auffangtellers schiebt und auf die Waagschale rieseln läßt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß man die gesamte für einen Waschgang bzw. für einen Reinigungsschritt benötigte Gewichtsmenge an Wasch- bzw. Reinigungsmittel in einem einzigen Schritt in den Mischbehälter und von dort in die Wasch- bzw. Geschirrspülmaschine eindosiert. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet,
daß man einen Bruchteil der für einen Waschvorgang bzw. Reinigungsschritt benötigten Gewichtsmenge an Wasch- bzw. Reinigungsmittel in den Mischbehälter und von dort in die Wasch- bzw. Geschirrspülmaschine eindosiert, die Leitfähigkeit der Lauge in der Maschine mißt und den Vorgang wiederholt, bis die gemessene Leitfähigkeit einen Sollwert erreicht hat. - Vorrichtung zum Durchführen des Verfahrens nach einem der vorhergehenden Ansprüche, mit einem Vorlagebehälter (1) und einem an einer Wasserleitung (10) angeschlossenen Mischbehälter (8),
gekennzeichnet durch
eine oberhalb des Mischbehälters (8) angebrachte Waagschale (5) einer Waage (6) und einen teilweise und vollständig zu öffnenden ansteuerbaren Verschluß (7) einer Auslaßöffnung der Waagschale (5). - Vorrichtung nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet,
daß der Verschluß als Klappe (7) oder Schieber ausgebildet ist. - Vorrichtung nach Anspruch 11 oder 12,
dadurch gekennzeichnet,
daß die Waagschale (5) als Trichter mit einer Öffnung an der tiefsten Stelle ausgebildet ist. - Vorrichtung nach einem der Ansprüche 11 bis 13,
gekennzeichnet durch
eine tangentiale Zulaufrichtung der Wasserleitung (10) in den Mischbehälter (8). - Vorrichtung nach einem der Ansprüche 11 bis 14,
gekennzeichnet durch,
einen unmittelbar über den Austrittsöffnungen (4) im Boden des Vorlagebehälters (1) vorgesehenen Rührer (3).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439680 | 1994-11-07 | ||
DE4439680A DE4439680C1 (de) | 1994-11-07 | 1994-11-07 | Verfahren zum Dosieren eines teilchenförmigen Wasch- oder Reinigungsmittels und dazu geeignete Vorrichtung |
PCT/EP1995/004244 WO1996014012A1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zum dosieren eines teilchenförmigen wasch- oder reinigungsmittels und dazu geeignete vorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0790798A1 EP0790798A1 (de) | 1997-08-27 |
EP0790798B1 true EP0790798B1 (de) | 1999-09-22 |
Family
ID=6532651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95936567A Expired - Lifetime EP0790798B1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zum dosieren eines teilchenförmigen wasch- oder reinigungsmittels und dazu geeignete vorrichtung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0790798B1 (de) |
AT (1) | ATE184774T1 (de) |
CA (1) | CA2204784A1 (de) |
DE (2) | DE4439680C1 (de) |
FI (1) | FI971933A0 (de) |
WO (1) | WO1996014012A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19852205C2 (de) * | 1998-11-12 | 2001-10-18 | Matthias Gerhards | Waschmitteldosiergerät |
DE29820266U1 (de) * | 1998-11-12 | 1999-07-15 | Gerhards, Matthias, 87527 Sonthofen | Automatischer Wäschewaschmittelaufbewahrungsdosierer mit Wasserhärtegradregulierung und Kindersicherung |
DE10331464A1 (de) * | 2003-05-21 | 2004-12-16 | Aweco Appliance Systems Gmbh & Co. Kg | Haushaltsmaschinenreiniger |
DE10347766A1 (de) * | 2003-10-14 | 2005-06-09 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsmaschine mit einem System zur Zufuhr von Reinigungsmittel in die Reinigungsflüssigkeit |
DE102007048197A1 (de) * | 2007-10-08 | 2009-04-16 | Miele & Cie. Kg | Dosiereinrichtung für Behandlungsmittel für eine Waschmaschine und Waschmaschine |
DE102007048199B3 (de) | 2007-10-08 | 2009-01-15 | Miele & Cie. Kg | Dosiereinrichtung für pulverförmiges Behandlungsmittel für eine Waschmaschine und Waschmaschine |
CN101649536A (zh) * | 2008-08-14 | 2010-02-17 | 博西华电器(江苏)有限公司 | 滚筒洗衣机及其进水的控制方法 |
EP2540902B1 (de) | 2011-06-30 | 2020-05-13 | Electrolux Home Products Corporation N.V. | Waschmaschine |
AT516795B1 (de) * | 2015-01-28 | 2019-08-15 | Knorr Bremse Gmbh | Zellenradschleuse und Sandungsanlage für ein Schienenfahrzeug mit verbessertem Ansprechverhalten und wenig pulsierendem Materialstrom |
TR201617595A1 (tr) * | 2016-12-01 | 2018-06-21 | Arcelik As | Deterjan Etkinliği Arttırılan Bir Bulaşık Makinası |
CN112798764A (zh) * | 2021-01-22 | 2021-05-14 | 宁波大禾仪器有限公司 | 自动加粉缩水率测试设备 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2921911C2 (de) * | 1979-05-30 | 1985-07-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Steuereinrichtung für Waschmaschinen |
US4444730A (en) * | 1982-06-07 | 1984-04-24 | Colgate-Palmolive Company | Detergent dispenser |
JPS60192224A (ja) * | 1984-03-13 | 1985-09-30 | Michio Oya | 洗剤の計量排出機構 |
DD232518A1 (de) * | 1984-12-06 | 1986-01-29 | Schwarzenberg Waschgeraete | Einrichtung fuer die zugabe von wasch- und waschhilfsmittel in waschmaschinen |
DE3721381A1 (de) * | 1987-06-29 | 1989-01-19 | Henkel Kgaa | Pulverdosiervorrichtung |
DD262686A1 (de) * | 1987-07-30 | 1988-12-07 | Textima Veb K | Verfahren und vorrichtung zum dosieren von pulver- oder granulatfoermigen textilhilfsmitteln |
-
1994
- 1994-11-07 DE DE4439680A patent/DE4439680C1/de not_active Expired - Fee Related
-
1995
- 1995-10-30 CA CA002204784A patent/CA2204784A1/en not_active Abandoned
- 1995-10-30 WO PCT/EP1995/004244 patent/WO1996014012A1/de active IP Right Grant
- 1995-10-30 EP EP95936567A patent/EP0790798B1/de not_active Expired - Lifetime
- 1995-10-30 AT AT95936567T patent/ATE184774T1/de not_active IP Right Cessation
- 1995-10-30 DE DE59506912T patent/DE59506912D1/de not_active Expired - Lifetime
-
1997
- 1997-05-06 FI FI971933A patent/FI971933A0/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE59506912D1 (de) | 1999-10-28 |
EP0790798A1 (de) | 1997-08-27 |
FI971933A (fi) | 1997-05-06 |
FI971933A0 (fi) | 1997-05-06 |
ATE184774T1 (de) | 1999-10-15 |
CA2204784A1 (en) | 1996-05-17 |
DE4439680C1 (de) | 1996-06-05 |
WO1996014012A1 (de) | 1996-05-17 |
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