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WO2008127178A2 - Système de traite et procédé pour transférer du lait dans un système de traite - Google Patents

Système de traite et procédé pour transférer du lait dans un système de traite Download PDF

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Publication number
WO2008127178A2
WO2008127178A2 PCT/SE2008/000267 SE2008000267W WO2008127178A2 WO 2008127178 A2 WO2008127178 A2 WO 2008127178A2 SE 2008000267 W SE2008000267 W SE 2008000267W WO 2008127178 A2 WO2008127178 A2 WO 2008127178A2
Authority
WO
WIPO (PCT)
Prior art keywords
milk
intermediate container
transfer
milking system
transferring
Prior art date
Application number
PCT/SE2008/000267
Other languages
English (en)
Other versions
WO2008127178A3 (fr
Inventor
Epke Bosma
Carina FJÄLLMYR
Mats Gudmundsson
Nils Erik Holmertz
Staffan Persson
Juoko Raninen
Original Assignee
Delaval Holding Ab
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 Delaval Holding Ab filed Critical Delaval Holding Ab
Publication of WO2008127178A2 publication Critical patent/WO2008127178A2/fr
Publication of WO2008127178A3 publication Critical patent/WO2008127178A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J5/00—Milking machines or devices
    • A01J5/007—Monitoring milking processes; Control or regulation of milking machines

Definitions

  • the present invention relates generally to milking systems and particularly it relates to a milking system adapted to perform milking operations of animals and transfer of the milk to a storage tank. It also relates to a method for milking an animal and for transferring the extracted milk to a storage tank.
  • Modern milking systems comprise milking stations able to milk animals , such as cows, and transfer the milk to a storage tank, while waiting for transport to a dairy plant.
  • the milk is a vulnerable food product, an emulsion of butter fat in water and is vulnerable to dynamical pressures and flows and rough mechanical treatment.
  • milk is sensitive to microorganisms and it is tested, for example, to identify animals that are infected. However, if there are milk remains in the system from one animal when milk from a subsequent animal is tested, there is a risk that the test will be adversely affected and possibly that a healthy animal is identified as infected if its milk is mixed with the milk from the other animal. Therefore, it is important to avoid mixing milk from animals, so that a milk sample from the subsequent animal is not contaminated.
  • An object of the present invention is to solve the problems mentioned above and provide a milking system handling milk carefully, lessen the risk of blending milk from different animals and being able to transfer the milk to a milk tank, comprising milk extracting means, an intermediate container and milk transferring means, wherein the extracting means includes a vacuum source arranged to selectively provide a suction vacuum in the intermediate container and is arranged to extract milk from the animal to the intermediate container, and the transferring means comprises a pump and is arranged to transfer the milk from the intermediate container to the milk tank.
  • the milking system according to the invention is characterised in that it inactivates the suction vacuum during the transfer of the milk from the intermediate container, so that the pressure in the intermediate container is kept at atmospheric pressure.
  • the pumping power can be kept low, which facilitates a gentle transfer of the milk. It also facilitates emptying of the intermediate container before the next animal is milked and prevents milk from remaining in the intermediate container, mixing with and affecting the analysis of milk from the next animal that is milked.
  • a gentle transfer is also facilitated, in an embodiment of the invention, where the milking system is arranged to transfer the milk from the intermediate container to the milk cooling tank before the milk is cooled, so that the milk is transferred near its original temperature, where it is less vulnerable. In this way milk can be carefully transferred by the pump through the transport line .
  • the system comprises milk level establishing means arranged to detect when the milk level in the intermediate container falls below a lower limit, wherein the system is adapted to stop the pump during the transferring process when this limit is reached.
  • the system resumes the transfer after a short pause, to transfer milk remains gathering during the pause.
  • the pause being short compared to the time it takes to transfer the milk, it can for example for cows possibly be a few seconds as compared to a minute for the transfer.
  • the resumed transferring is stopped a second time after the second short transferring process, wherein the second transfer lasting a few seconds, for a cow, being short compared to the first and main transfer lasting for approximately a minute for transferring milk from one cow.
  • This pause and resumed transfer ensures transfer of milk from one animal and lessens the risk for carry over of milk from one animal to milk from a subsequent animal, so that it is possible to measure milk quality parameters, such as performing a somatic cell count, establish fat content, hormone levels, etc. for an individual animal without the samples being affected by milk from another animal.
  • figure 1 illustrates parts of a milking system being used during milking
  • figure 2 illustrates parts of a milking system being used during transfer of milk from a milking station to a milk tank
  • figure 3 illustrates an embodiment of the milking system comprising the parts of figure 1 as well as the parts of figure 2,
  • figure 4 illustrates a milking system comprising a plurality of milking stations connected to a milk tank via a common milk transfer conduit.
  • FIGS. 1 and 2 illustrate the milking system during different operations , figure 1 during milking and figure 2 during transfer of milk.
  • FIG. 1 illustrates a milking station 1 for extracting milk from milk producing animals, such as cows.
  • the station comprises milk extraction means in the form of four teat cups 3, a vacuum source 4 and teat cup conduits 5 illustrated as one bundle 5 of conduits.
  • the teat cups are connected to an intermediate container 6 via the teat cup conduits 5.
  • the vacuum source 4 is connected to and arranged to selectively apply a low suction pressure to the intermediate container 6.
  • the teat cups 3 are attached to the teats of the animal, and milk is sucked through the conduits 5 to the intermediate container 6 by means of the low pressure provided by the vacuum source 4 to the intermediate container.
  • the intermediate container is connected to the vacuum source on one side and to the teats of the animal, via the teat cups and conduits, on the other side during milking.
  • the intermediate container is designed to contain at least the amount of milk produced during milking of one animal. It is also suitable to provide milk testing equipment in association with the intermediate container so that the quality of the milk can be tested.
  • Figure 2 illustrates a milk transferring system for transferring the milk from the intermediate container to a milk tank 2, such as a milk cooling tank.
  • the transferring system comprises a pump 8 and a transport conduit 9 forming a transport line from the intermediate container to the milk tank.
  • the transferring system is arranged to transfer milk from the container to the tank after an animal has been milked.
  • the vacuum source (4 in figure 1) is inactivated and the intermediate container 6 is, preferably, brought to atmospheric pressure by, e.g., opening the container to the surrounding air by a pressure relief valve, indicated by 7.
  • the pump is adapted to provide a suitable pumping power so that the milk is transferred by a pump capacity high enough to overcome flow resistance in the transferring system and differences in height levels, but should be kept low to prevent affecting the milk in a negative way, such as risking to increase the levels of free fatty acids in the milk due to high pumping speed and power.
  • the milk can be held at its original temperature, ca 35- 38° C, in the intermediate container 6, which can be insulated, and be cooled firstly when arriving in the milk tank.
  • an animal that is going to be milked can replace the animal that has been milked and this further animal is suitably cleaned before it is milked.
  • the milking station can be an automatic milking station provided with means for cleaning at least the teats of the animal prior to applying the teat cups and extracting milk from the further animal.
  • the cleaning of the animal is not discussed since it is not a major aspect of the inventive system.
  • Figure 3 illustrates the extraction means 3, 4, 5 and the intermediate container 6 of figure 1 as well as the transferring means 8, 9 with pressure relief valve 7 at the intermediate container 6 , and the milk tank 2 from figure 2.
  • the system is adapted to selectively provide vacuum 4 and atmospheric pressure 7 to the intermediate container during the extraction and transfer, respectively.
  • Figure 3 illustrates an embodiment including a control unit 11 controlling the functioning of the station and its parts during the extraction and transfer, and valves 10, 12, 14 where a milk tank valve 12 and a drain valve 10 selectively leads the milk from the pump 8 to the milk tank 2 and a drain, respectively.
  • a minor outlet from the pump is connected via a sample valve 14 to a milk sample unit 15, so that a minor flow of milk, as compared to the major flow to the milk tank, can be transferred to the sampling unit for analysis.
  • the sampling unit 15 can for this purpose comprise means for sampling milk into bottles and/or analysing means, such as a cell counter, for analysing the quality of the milk. Milk in the minor flow that is not sampled is lead further via a non-return valve 13 to the transport conduit 9, back to the milk in the major flow.
  • a line (not shown) can be arranged between the sampling unit 15 and the intermediate container 6, leading this minor flow of non-sampled milk back to the container 6 instead.
  • the transfer can be arranged so that milk is continuously transferred in both the major and minor flow.
  • the intermediate container 6 is also equipped with a level sensor or detector 16 informing the system of the milk level in the intermediate container, which level includes a minimum level 17 at the bottom of the intermediate container provided in the outlet from the intermediate container to the pump 8 , so that the system receives information when the intermediate container is emptied.
  • the system is adapted to stop the transfer of milk from the intermediate container 6 to the milk tank 2 when this minimum level is reached.
  • the system can also be adapted to resume the pumping after a short pause, so that the last milk in the intermediate container 6, from the extraction of one animal, is allowed to gather and be transferred.
  • the first transfer before the first stop will transfer almost all of the milk from one extraction, and the second transfer after the pause will transfer milk remains so that a carry over of milk from one animal to milk from a subsequently- milked animal is prevented.
  • the short extra pumping provided at the end of the transferring process will lessen the risk that milk being sampled in the sample unit comprises milk from two animals , and will therefore contribute to a more accurate analysis.
  • a non-return valve 18 arranged to prevent milk flow backwards into the pump.
  • the vacuum 4 is preferably activated again, which also will assure closure of this non-return valve 18, and further prevent carry over of milk from one animal to milk from another.
  • milk from the sample unit 15 being transferred back to the main flow in the transfer conduit 9 is prevented from being lead into the pump 8 from the transfer conduit 9 by the non-return valve, the functioning of which improves upon reactivation of the vacuum in the intermediate container 6.
  • FIG. 4 illustrates a system comprising a plurality of milking stations 6a, 6b, 6c connected to a common milk transfer conduit 9.
  • Each milking station 6a-c comprises a pump 8a-c arranged to transfer milk to the common milk transfer conduit via a respective milk station valve 12a-c for selectively connecting each station to the common transfer conduit.
  • Each milking station 6a-c is provided with a non-return valve 18 between its pump 8a- c and the common transfer conduit 9 and/or provided with electronically activated pump valves 20a-c in its outlet conduit to the pump 8a-8c selectively leading extracted milk to the pump for subsequent transfer to a milk tank 2 via the common transfer conduit 9.
  • a valve arrangement 10a, 10b is provided at the milk tank, for leading milk from the stations to the tank or bypassing the milk tank

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • Dairy Products (AREA)
  • Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)

Abstract

L'invention concerne un système de traite conçu pour effectuer des opérations de traite d'animaux. Ce système de traite est conçu pour extraire du lait à partir d'un animal produisant du lait et transférer le lait dans un réservoir à lait (2), et comprend des moyens d'extraction de lait (3, 4, 5), un récipient intermédiaire (6) et des moyens de transfert de lait (7, 8, 9); les moyens d'extraction étant conçus pour extraire du lait de l'animal au récipient intermédiaire, et les moyens de transfert étant conçus pour transférer le lait du récipient intermédiaire au réservoir à lait. Les moyens d'extraction de lait (3, 4, 5) comprennent une pluralité de gobelets-trayeurs (3) raccordés fluidiquement au récipient intermédiaire, et une source de vide (4) conçue pour créer sélectivement un vide dans le récipient intermédiaire. Ledit système est en particulier conçu pour désactiver le vide (4) pendant le transfert du lait à partir du récipient intermédiaire, de sorte que la pression dans ledit récipient intermédiaire soit maintenue au niveau de la pression atmosphérique.
PCT/SE2008/000267 2007-04-13 2008-04-11 Système de traite et procédé pour transférer du lait dans un système de traite WO2008127178A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0700914 2007-04-13
SE0700914-5 2007-04-13
SE0800092-9 2008-01-15
SE0800092A SE0800092L (sv) 2007-04-13 2008-01-15 Optimal tömning av slutenheten under provtagning i vms

Publications (2)

Publication Number Publication Date
WO2008127178A2 true WO2008127178A2 (fr) 2008-10-23
WO2008127178A3 WO2008127178A3 (fr) 2008-12-24

Family

ID=39811561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/000267 WO2008127178A2 (fr) 2007-04-13 2008-04-11 Système de traite et procédé pour transférer du lait dans un système de traite

Country Status (2)

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SE (1) SE0800092L (fr)
WO (1) WO2008127178A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829663A (zh) * 2010-05-11 2010-09-15 淮北康迪电力科技有限责任公司 冷却管大流量遥控射弹清洗机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211171A (en) * 1963-02-28 1965-10-12 Sta Rite Products Inc Milking system
US4306590A (en) * 1978-05-16 1981-12-22 Boudreau Archie E Milking apparatus discharge valve
NL9001689A (nl) * 1990-02-23 1991-09-16 Lely Nv C Van Der Inrichting voor het automatisch melken van een dier.
EP0628244A1 (fr) * 1993-06-10 1994-12-14 Maasland N.V. Méthode de traite d'animaux et dispositif utilisant ladite méthode
WO1998028969A1 (fr) * 1996-12-31 1998-07-09 Prolion B.V. Procede et dispositif permettant de traire des animaux
US5881669A (en) * 1994-04-27 1999-03-16 Maasland N.V. Method of automatically milking animals and an implement for applying same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211171A (en) * 1963-02-28 1965-10-12 Sta Rite Products Inc Milking system
US4306590A (en) * 1978-05-16 1981-12-22 Boudreau Archie E Milking apparatus discharge valve
NL9001689A (nl) * 1990-02-23 1991-09-16 Lely Nv C Van Der Inrichting voor het automatisch melken van een dier.
EP0628244A1 (fr) * 1993-06-10 1994-12-14 Maasland N.V. Méthode de traite d'animaux et dispositif utilisant ladite méthode
US5881669A (en) * 1994-04-27 1999-03-16 Maasland N.V. Method of automatically milking animals and an implement for applying same
WO1998028969A1 (fr) * 1996-12-31 1998-07-09 Prolion B.V. Procede et dispositif permettant de traire des animaux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829663A (zh) * 2010-05-11 2010-09-15 淮北康迪电力科技有限责任公司 冷却管大流量遥控射弹清洗机

Also Published As

Publication number Publication date
SE0800092L (sv) 2008-10-14
WO2008127178A3 (fr) 2008-12-24

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