WO2010069669A2 - Milking system layout - Google Patents
Milking system layout Download PDFInfo
- Publication number
- WO2010069669A2 WO2010069669A2 PCT/EP2009/064655 EP2009064655W WO2010069669A2 WO 2010069669 A2 WO2010069669 A2 WO 2010069669A2 EP 2009064655 W EP2009064655 W EP 2009064655W WO 2010069669 A2 WO2010069669 A2 WO 2010069669A2
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- WO
- WIPO (PCT)
- Prior art keywords
- milk
- milking
- milking station
- line
- station
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01J—MANUFACTURE OF DAIRY PRODUCTS
- A01J5/00—Milking machines or devices
- A01J5/04—Milking machines or devices with pneumatic manipulation of teats
- A01J5/044—Milk lines or coupling devices for milk conduits
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01J—MANUFACTURE OF DAIRY PRODUCTS
- A01J7/00—Accessories for milking machines or devices
- A01J7/02—Accessories for milking machines or devices for cleaning or sanitising milking machines or devices
- A01J7/022—Clean-in-Place Systems, i.e. CIP, for cleaning the complete milking installation in place
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01J—MANUFACTURE OF DAIRY PRODUCTS
- A01J7/00—Accessories for milking machines or devices
- A01J7/02—Accessories for milking machines or devices for cleaning or sanitising milking machines or devices
- A01J7/027—Vessel cleaning, e.g. cleansing of milk tanks, milk vessels or milk separators
Definitions
- the invention relates generally to a milking system arrangement for milking animals, such as cows. Especially, to an arrangement comprising a plurality of milking stations connected to a common milk line and comprising cleaning equipment for cleaning the milk line.
- Modern milking systems comprise milking stations adapted to milk animals, such as cows, and transfer the extracted milk to a milk storage tank, while waiting for transport to a dairy plant.
- the milk is a vulnerable food product and it is important to protect it from micro-organisms and prevent chemical reactions.
- the equipment of a milking system therefore has to be cleaned regularly.
- a way to clean the equipment is to empty the system from milk and supply a cleaning liquid, by means of a cleaning liquid supply line, to the milking system.
- the cleaning liquid is then circulated through the system.
- Such systems both handle vacuum and pressures, raising the requirements for sealing the system and preventing contamination of the milk.
- the invention provides a method and an arrangement of a milking system that includes milking stations and a milk line, said milk line being arranged for transferring extracted milk to a storage tank.
- the milking stations have means for transferring liquid, such as milk and cleaning liquid, to the milk line, and return lines for liquid are arranged for conveying liquid from the milk line to each milking station.
- each milking station can be arranged to clean a section of the milk line.
- the cleaning of the milk line can be divided among a plurality of milking stations.
- the milking system arrangement in accordance with the present invention comprises a plurality of milking stations for extracting milk from animals, a milk line and a storage tank.
- a first milking station of the plurality of milking stations in the arrangement comprises means for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit arranged to lead milk from the first milking station to a first portion of the milk line, and a second milking station of the plurality of milking stations comprises means for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit arranged to lead milk from the second milking station to a second portion of the milk line.
- the milking system arrangement is characterised in that a first return conduit is arranged from the first portion of the milk line to the first milking station so that liquid can be circulated from the first milking station, through the access conduit of the first milking station, through the first portion of the milk line, and through the first return line back to the first milking station, and a second return conduit is arranged from the second portion of the milk line to the second milking station so that liquid can be circulated from the second milking station, through the access conduit of the second milking station, through the second portion of the milk line, and through the second return line back to the second milking station.
- each milking station and respective milk line portion can be used to circulate a liquid and thereby counteract gathering of milk remains in the milk line.
- each of the first and second milking stations is adapted to circulate cleaning liquid through their respective access conduit, milk line portion and return line. In this way the milking stations can cooperate in cleaning the milk line.
- the first portion of the milk line is arranged next to the second portion of the milk line. In this way there is basically no portion of the milk line between the first and second portions, so that the whole milk line that passes the milking stations can be cleaned.
- each of the first and second milking stations comprise means for providing a cleaning liquid, such as a water supply connection, means for dosing a detergent and means for heating the cleaning liquid.
- each of the pumps includes a pump.
- each of the pumps is a variable speed pump, for providing a higher speed when circulating cleaning liquid than when pumping milk. In this way a gentle handling of milk can be provided, together with a harsher rinsing of cleaning liquid.
- a method for cleaning a milk line used by a first and a second milking station for the transfer of milk to a milk tank in accordance with the invention includes supplying cleaning liquid to a first and a second portion of the milk line by means of the first and second milking station, respectively.
- each milking station supplies cleaning liquid through its section, or portion, of the common milk line, so that the cleaning is divided among the milking stations.
- the cleaning step performed by the first milking station includes rinsing cleaning liquid in an access conduit from the first milking station, through the first portion of the milk line and back to the first milking station through a return conduit.
- the access conduit used to supply cleaning liquid to the milk line is also used to transfer milk to the milk line during the milk transfer to the milk tank.
- both this cleaning liquid supply and milk transfer is performed using the same pump.
- the cleaning of the pump and access line conduit of each milking station can be performed by the milking station equipment itself.
- the adding of more milking stations automatically add cleaning resources for the cleaning of the additional milking stations and their additionally required milk line length.
- each milking station rinses cleaning liquid through its respective access conduit, milk line portion and return conduit.
- the rinsing of the first milking station includes circulating the cleaning liquid through the milking station, access conduit, milk line portion and return conduit.
- the cleaning step performed by the second milking station preferably comprises rinsing cleaning liquid through an access conduit of the second milking station, the second portion of the milk line and a return conduit of the second milking station, said rinsing preferably including circulation of the cleaning liquid.
- the cleaning method includes a step of preparing cleaning liquid using water, and the preparing step includes heating the water and/or blending a detergent into the water.
- the cleaning can include a combination of rinsing with cold water, heated water, detergent and water mixture.
- cleaning is provided for by supplying the cleaning liquid from the respective milking station at a higher flow rate than the flow rate when transferring milk.
- An embodiment includes the step of transferring cleaning liquid between the first portion and the second portion. In this way cleaning liquid can be transferred from one milking station to another. Also, the connection between the first and second portion, e.g. a valve, can be cleaned.
- Figure 1 illustrates a milking system arrangement in accordance with the invention, which arrangement can be used for cleaning the milking system.
- Figure 2 illustrates parts of a milking station suitable for the arrangement of figure 1.
- FIG. 1 illustrates a milking system for milking cows, with an arrangement for cleaning the milking system.
- the milking system comprises a plurality of milking stations 1 a-c connected to a common milk line 6 for transferring milk, extracted by each milking station respectively, to a common milk tank 9.
- Each milking station 1 a-c comprises means for extracting milk from an animal (not shown) and a pump 2a-c for transferring milk from the milking station to the milk line 6 via a valve 3a-c and an individual access line 4a-c arranged between the milking station and the common milk line 6.
- Each connecting milk line is connected to the milk line 6 at connections dividing the common milk line 6 into a plurality of segments or portions 6a-c.
- each milking station 1 a-c is arranged to pump milk into the milk line at a first end of a respective milk line portion 6a-c.
- the portion 6c of the milking station 1 c arranged closest to the milk tank leads into a final portion 6d into the milk tank.
- the first milking station 1 c is closest to the milk tank 9
- a second milking station 1 b, neighbouring the first milking station 1 c is second closest to the milk tank 9
- a third milking station 1 a neighbouring the second milking station 1 b is the third closest to the milk tank 9.
- the milk from the second milking station 1 b flows into the first end of its portion 6b, passes through the portion and the end of the portion, and further into the next portion 6c of the milk line, i.e. the portion of the first milking station 1 c, and passes through the portion 6c of the first milking station 1c and via a last tank connecting portion 6d of the milk line to the milk tank.
- each milking station 1 a-c is adapted to supply cleaning liquid to the milk line, via the same valve 3a-c and access line 4a-c that are used to transfer milk to the common milk line 6.
- each milking station 1 a-c is also connected to the milk line 6 by means of a return line 5a-c for conveying liquid back to the respective milking station.
- Each portion of the milk line 6a-c has a valve arrangement 7a-c for selectively connecting the portion 6a-c to the next portion 6a-d or to the return line 5a-c.
- Each valve arrangement 7a-c is preferably a three-way valve, which fluidly interconnects a milk line portion to its neighbouring portion (or one of its neighbouring portions) during milk transfer, and the milk line portion to a return line 5a-c of the milking station during cleaning.
- the arrangement is suitably adapted to control the valves of the arrangement.
- Each milking station is preferably adapted to selectively connect its milk line portion to the next portion during milk transfer, while selecting to connect its portion 6a-c to the return line 5a-c when pumping cleaning liquid, which return line thereby is arranged to lead cleaning liquid from the milk line portion 6a-c back to the milking station 1 a-c.
- the return line 5a-c of each milking station 1 a-c is arranged between the end of the milk line portion 6a-c of the respective milking station 1 a-c and back to the milking station 1 a-c.
- each milking station 1 a-c pumps 2a-c milk via its access line 4a- c, into its segment 6a-c of the milk line 6 and further downstream through a neighbouring segment 6a-d to the milk tank 9.
- Each upstream milking station 6a-b transfers its milk through all segments of downstream milking stations 6b-c, and the last milk line portion 6d.
- each milking station 1 a-c circulates cleaning liquid by means of its pump 2a-c, through its access line 4a-c into its segment 6a-c and from its segment, via its return line 5a-c, back to the milking station 1 a-c.
- the arrangement is illustrated as including three milking station but can be connected to several milking stations and milk line portions upstream by means of an upstream valve 17, for example for further selective milk line portion connection and return line connection.
- the arrangement can also interconnect the neighbouring portions during some phase of the cleaning process.
- the cleaning can include cleaning of the valve arrangements 7a-c, during which cleaning the valve arrangements 7a-c are open for flow between the milk line portions.
- Another example is to supply cleaning liquid to the milking stations at the beginning of the cleaning, during which supply the valve arrangements can be open to lead cleaning liquid along the milk line between two or more neighbouring milk line portions.
- the interconnection of milk line portions by means of the valve arrangements can be used to convey cleaning liquid away from one or more milking stations, for example to a common drain.
- FIG. 2 illustrates an example of a milking station 1 that can be used for cleaning a portion of the milk transfer line by supplying, rinsing and circulating cleaning liquid in the transfer milk line.
- the milking station is greatly simplified in the illustration, and includes means for milking an animal 21 , including teat cups, means for providing vacuum 24 to the teat cups, for example including an air pump and a pulsator, and a milk receiving container 23.
- the function of the milking station 1 is controlled by a control unit 22 incorporated in the milking station 1.
- the milking station is adapted to extract milk from an animal and draw it by means of vacuum to the milk- receiving container.
- the milking station is also adapted to subsequently transfer the extracted milk, by means of a pump 2, to a milk storage tank.
- the pump 2 can suitably be a pump having a variable speed, and the milking station can be adapted to control the speed of the pump during milk transfer and cleaning.
- the illustrated milking station has been especially adapted for cleaning purposes by being provided with its own cleaning equipment, including a water supply 25 and means for supplying cleaning detergent 26 into water to provide cleaning liquid and including means for heating the cleaning liquid, such as a heating element 28, arranged in a cleaning liquid mixing and heating compartment 27.
- the milking station of figure 2 also includes cooling means 29 for cooling extracted milk, for example arranged inside the milk-receiving container 23.
- the milking station can be of a type that is adapted to cool milk before transferring it to the milk tank.
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- 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
A method and a milking system arrangement comprising a plurality of milking stations for extracting milk from animals, a milk line (6) and a storage tank (9), wherein a first milking station (1c) of the plurality of milking stations, comprises means (2c, 4c) for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit (4c) arranged to lead milk from the first milking station to a first portion (6c) of the milk line, and a second milking station (1b) of the plurality of milking stations, comprises means (2b, 4b) for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit (4b) arranged to lead milk from the second milking station (1b) to a second portion (6b) of the milk line. The arrangement is characterised in that a first return conduit (5c) is arranged from the first portion (6c) of the milk line (6) to the first milking station (1c) so that liquid can be circulated from the first milking station, through the access conduit (4c) of the first milking station, through the first portion of the milk line (6c), and through the first return line (5c) back to the first milking station, and a second return conduit (5b) is arranged from the second portion (6b) of the milk line (6) to the second milking station (1b) so that liquid can be circulated from the second milking station, through the access conduit (4b) of the second milking station, through the second portion (6b) of the milk line, and through the second return line (5b) back to the second milking station.
Description
Milking system layout Technical Field
The invention relates generally to a milking system arrangement for milking animals, such as cows. Especially, to an arrangement comprising a plurality of milking stations connected to a common milk line and comprising cleaning equipment for cleaning the milk line.
Background to the invention
Modern milking systems comprise milking stations adapted to milk animals, such as cows, and transfer the extracted milk to a milk storage tank, while waiting for transport to a dairy plant. The milk is a vulnerable food product and it is important to protect it from micro-organisms and prevent chemical reactions. The equipment of a milking system therefore has to be cleaned regularly. A way to clean the equipment is to empty the system from milk and supply a cleaning liquid, by means of a cleaning liquid supply line, to the milking system. The cleaning liquid is then circulated through the system. Such systems both handle vacuum and pressures, raising the requirements for sealing the system and preventing contamination of the milk.
Large milking plants have also become more common, creating a need for longer milking lines as well as a larger number of milking lines within the milking systems. The cleaning of larger milking plants consequently requires special effort due to their size and complexity.
In larger systems having many milking stations, the distances between an individual milking station and a common milk storage tank becomes large and a milk transfer line between the station and tank consequently becomes longer and harder to clean.
Also, in systems where cleaning liquid is circulated, the larger systems require longer return lines for the cleaning liquid circulation.
Summary of the invention
It is an object of the invention to provide a cleaning arrangement for a milking system that is especially useful for larger systems.
For this purpose the invention provides a method and an arrangement of a milking system that includes milking stations and a milk line, said milk line being arranged for transferring extracted milk to a storage tank. The milking stations have means for transferring liquid, such as milk and cleaning liquid, to the milk line, and return lines for liquid are arranged for conveying liquid from the milk line to each milking station. In this arrangement, each milking station can be arranged to clean a section of the milk line. Thus, the cleaning of the milk line can be divided among a plurality of milking stations.
The milking system arrangement in accordance with the present invention comprises a plurality of milking stations for extracting milk from animals, a milk line and a storage tank. A first milking station of the plurality of milking stations in the arrangement comprises means for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit arranged to lead milk from the first milking station to a first portion of the milk line, and a second milking station of the plurality of milking stations comprises means for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit arranged to lead milk from the second milking station to a second portion of the milk line. The milking system arrangement is characterised in that a first return conduit is arranged from the first portion of the milk line to the first milking station so that liquid can be circulated from the first milking station, through the access conduit of the first milking station, through the first portion of the milk line, and through the first return line back to the first milking station, and a second return conduit is arranged from the second portion of the milk line to the second milking station so that liquid can be circulated from the second milking station, through the access conduit of the second milking station, through the second portion of the milk line, and through the second return line back to the second milking station.
The return line between each milking station and respective milk line portion can be used to circulate a liquid and thereby counteract gathering of milk remains in the milk line.
In an embodiment, each of the first and second milking stations is adapted to circulate cleaning liquid through their respective access conduit, milk line portion and return line. In this way the milking stations can cooperate in cleaning the milk line.
In an embodiment the first portion of the milk line is arranged next to the second portion of the milk line. In this way there is basically no portion of the milk line between the first and second portions, so that the whole milk line that passes the milking stations can be cleaned.
In an embodiment, each of the first and second milking stations comprise means for providing a cleaning liquid, such as a water supply connection, means for dosing a detergent and means for heating the cleaning liquid.
In an embodiment, the transferring means of each of the first and second milking station includes a pump. Preferably, each of the pumps is a variable speed pump, for providing a higher speed when circulating cleaning liquid than when pumping milk. In this way a gentle handling of milk can be provided, together with a harsher rinsing of cleaning liquid.
A method for cleaning a milk line used by a first and a second milking station for the transfer of milk to a milk tank in accordance with the invention includes supplying cleaning liquid to a first and a second portion of the milk line by means of the first and second milking station, respectively. Thus, each milking station supplies cleaning liquid through its section, or portion, of the common milk line, so that the cleaning is divided among the milking stations.
In an embodiment, the cleaning step performed by the first milking station includes rinsing cleaning liquid in an access conduit from the first milking station, through the first portion of the milk line and back to the first milking station through a return conduit. For example the access conduit used to supply cleaning liquid to the milk line is also used to transfer milk to the milk line during the milk transfer to the milk tank. Also, both this cleaning liquid supply and milk transfer is performed using the same pump. In this way, the cleaning of the pump and access line conduit of each
milking station can be performed by the milking station equipment itself. In such milking system arrangement the adding of more milking stations automatically add cleaning resources for the cleaning of the additional milking stations and their additionally required milk line length. Preferably, each milking station rinses cleaning liquid through its respective access conduit, milk line portion and return conduit.
In embodiments further enhancing the cleaning performed, the rinsing of the first milking station includes circulating the cleaning liquid through the milking station, access conduit, milk line portion and return conduit.
Likewise, the cleaning step performed by the second milking station preferably comprises rinsing cleaning liquid through an access conduit of the second milking station, the second portion of the milk line and a return conduit of the second milking station, said rinsing preferably including circulation of the cleaning liquid.
In an embodiment, the cleaning method includes a step of preparing cleaning liquid using water, and the preparing step includes heating the water and/or blending a detergent into the water.
In accordance with the invention, the cleaning can include a combination of rinsing with cold water, heated water, detergent and water mixture.
In an embodiment cleaning is provided for by supplying the cleaning liquid from the respective milking station at a higher flow rate than the flow rate when transferring milk. Thus enhancing the cleaning effect, still treating milk carefully.
An embodiment includes the step of transferring cleaning liquid between the first portion and the second portion. In this way cleaning liquid can be transferred from one milking station to another. Also, the connection between the first and second portion, e.g. a valve, can be cleaned.
Brief description of the drawings
Figure 1 illustrates a milking system arrangement in accordance with the invention, which arrangement can be used for cleaning the milking system. Figure 2 illustrates parts of a milking station suitable for the arrangement of figure 1.
Description of embodiments
Figure 1 illustrates a milking system for milking cows, with an arrangement for cleaning the milking system. The milking system comprises a plurality of milking stations 1 a-c connected to a common milk line 6 for transferring milk, extracted by each milking station respectively, to a common milk tank 9. Each milking station 1 a-c comprises means for extracting milk from an animal (not shown) and a pump 2a-c for transferring milk from the milking station to the milk line 6 via a valve 3a-c and an individual access line 4a-c arranged between the milking station and the common milk line 6. Each connecting milk line is connected to the milk line 6 at connections dividing the common milk line 6 into a plurality of segments or portions 6a-c. Thus, each milking station 1 a-c is arranged to pump milk into the milk line at a first end of a respective milk line portion 6a-c. The portion 6c of the milking station 1 c arranged closest to the milk tank leads into a final portion 6d into the milk tank. Referring to the milking stations 1 a-c in the order from the milk tank 9 and upstream, the first milking station 1 c is closest to the milk tank 9, a second milking station 1 b, neighbouring the first milking station 1 c, is second closest to the milk tank 9 and a third milking station 1 a, neighbouring the second milking station 1 b is the third closest to the milk tank 9.
As an example, the milk from the second milking station 1 b flows into the first end of its portion 6b, passes through the portion and the end of the portion, and further into the next portion 6c of the milk line, i.e. the portion of the first milking station 1 c, and passes through the portion 6c of the first milking station 1c and via a last tank connecting portion 6d of the milk line to the milk tank.
For cleaning the milk line 6, each milking station 1 a-c is adapted to supply cleaning liquid to the milk line, via the same valve 3a-c and access line 4a-c that are used to transfer milk to the common milk line 6. In addition, each milking station 1 a-c is also connected to the milk line 6 by means of a return line 5a-c for conveying liquid back
to the respective milking station. Each portion of the milk line 6a-c has a valve arrangement 7a-c for selectively connecting the portion 6a-c to the next portion 6a-d or to the return line 5a-c. Each valve arrangement 7a-c is preferably a three-way valve, which fluidly interconnects a milk line portion to its neighbouring portion (or one of its neighbouring portions) during milk transfer, and the milk line portion to a return line 5a-c of the milking station during cleaning. The arrangement is suitably adapted to control the valves of the arrangement.
Each milking station is preferably adapted to selectively connect its milk line portion to the next portion during milk transfer, while selecting to connect its portion 6a-c to the return line 5a-c when pumping cleaning liquid, which return line thereby is arranged to lead cleaning liquid from the milk line portion 6a-c back to the milking station 1 a-c. The return line 5a-c of each milking station 1 a-c is arranged between the end of the milk line portion 6a-c of the respective milking station 1 a-c and back to the milking station 1 a-c. By pumping cleaning liquid in this way, each milking station 1 a-c cleans itself, its pump 2a-c, access line 4a-c and its segment or portion 6a-c of the common milk line 6.
During milk transfer, each milking station 1 a-c pumps 2a-c milk via its access line 4a- c, into its segment 6a-c of the milk line 6 and further downstream through a neighbouring segment 6a-d to the milk tank 9. Each upstream milking station 6a-b transfers its milk through all segments of downstream milking stations 6b-c, and the last milk line portion 6d. During a cleaning process, each milking station 1 a-c circulates cleaning liquid by means of its pump 2a-c, through its access line 4a-c into its segment 6a-c and from its segment, via its return line 5a-c, back to the milking station 1 a-c. The arrangement is illustrated as including three milking station but can be connected to several milking stations and milk line portions upstream by means of an upstream valve 17, for example for further selective milk line portion connection and return line connection.
The arrangement can also interconnect the neighbouring portions during some phase of the cleaning process. For example, the cleaning can include cleaning of the valve arrangements 7a-c, during which cleaning the valve arrangements 7a-c are open for
flow between the milk line portions. Another example is to supply cleaning liquid to the milking stations at the beginning of the cleaning, during which supply the valve arrangements can be open to lead cleaning liquid along the milk line between two or more neighbouring milk line portions. Also, at the end of a cleaning process the interconnection of milk line portions by means of the valve arrangements can be used to convey cleaning liquid away from one or more milking stations, for example to a common drain.
Figure 2 illustrates an example of a milking station 1 that can be used for cleaning a portion of the milk transfer line by supplying, rinsing and circulating cleaning liquid in the transfer milk line. The milking station is greatly simplified in the illustration, and includes means for milking an animal 21 , including teat cups, means for providing vacuum 24 to the teat cups, for example including an air pump and a pulsator, and a milk receiving container 23. The function of the milking station 1 is controlled by a control unit 22 incorporated in the milking station 1. During milking, the milking station is adapted to extract milk from an animal and draw it by means of vacuum to the milk- receiving container. The milking station is also adapted to subsequently transfer the extracted milk, by means of a pump 2, to a milk storage tank. The pump 2 can suitably be a pump having a variable speed, and the milking station can be adapted to control the speed of the pump during milk transfer and cleaning. The illustrated milking station has been especially adapted for cleaning purposes by being provided with its own cleaning equipment, including a water supply 25 and means for supplying cleaning detergent 26 into water to provide cleaning liquid and including means for heating the cleaning liquid, such as a heating element 28, arranged in a cleaning liquid mixing and heating compartment 27.
The milking station of figure 2 also includes cooling means 29 for cooling extracted milk, for example arranged inside the milk-receiving container 23. The milking station can be of a type that is adapted to cool milk before transferring it to the milk tank.
Claims
1. Milking system arrangement comprising a plurality of milking stations (1 a-c) for extracting milk from animals, a milk line (6) and a storage tank (9), wherein a first milking station (1c) of the plurality of milking stations, comprises means (2c, 4c) for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit (4c) arranged to lead milk from the first milking station to a first portion (6c) of the milk line, a second milking station (1 b) of the plurality of milking stations, comprises means (2b, 4b) for transferring milk to the storage tank via the milk line, said transferring means comprising an access conduit (4b) arranged to lead milk from the second milking station (1 b) to a second portion (6b) of the milk line, c h a r a c t e r i s e d in that a first return conduit (5c) is arranged from the first portion (6c) of the milk line (6) to the first milking station (1 c) so that liquid can be circulated from the first milking station, through the access conduit (4c) of the first milking station, through the first portion of the milk line (6c), and through the first return line (5c) back to the first milking station, and a second return conduit (5b) is arranged from the second portion (6b) of the milk line (6) to the second milking station (1 b) so that liquid can be circulated from the second milking station, through the access conduit (4b) of the second milking station, through the second portion (6b) of the milk line, and through the second return line (5b) back to the second milking station.
2. Milking system arrangement according to claim 1 , wherein the first portion (6c) of the milk line is arranged next to the second portion (6b) of the milk line.
3. Milking system arrangement according to any of claims 1 to 2, wherein each of the first (1 c) and second milking stations is adapted to circulate cleaning liquid through their respective access conduit, milk line portion and return line.
4. Milking system arrangement according to any of claims 1 to 3, wherein each of the first and second milking stations comprise means for providing a cleaning liquid.
5. Milking system arrangement according to any of claims 1 to 4, wherein the transferring means of each of the first and second milking station includes a pump.
6. Milking system arrangement according to any of claims 1 to 4, wherein each of the pumps is a variable speed pump.
7. Milking system arrangement according to any of claims 1 to 6, wherein each milking station includes means for cooling extracted milk.
8. Method for cleaning a milk line (6) used by a first (1 c) and a second (1 b) milking station for the transfer of milk to a milk tank (9), wherein the cleaning method includes supplying cleaning liquid to a first (6c) and a second (6b) portion of the milk line by means of the first and second milking station, respectively.
9. Method for cleaning according to claim 8, wherein the cleaning step performed by the first milking station includes rinsing cleaning liquid in an access conduit (4c) from the first milking station, through the first portion (6c) of the milk line and back to the first milking station through a return conduit (5c).
10. Method for cleaning according to claim 8 or 9, wherein the rinsing of the first milking station includes circulating the cleaning liquid through the milking station, access conduit, milk line portion and return conduit.
11. Method according to claim 9 or 10, wherein the cleaning step performed by the second milking station comprises rinsing cleaning liquid through an access conduit (4b) of the second milking station, the second portion (6b) of the milk line (6) and a return conduit (5b) of the second milking station, said rinsing preferably including circulation of the cleaning liquid.
12. Method according to any of claims 8 to 11 , including a step of preparing cleaning liquid using water, and the preparing step includes heating the water and/or blending a detergent into the water.
13. Method according to any of claims 8 to 12, wherein the supplying of cleaning liquid from the respective milking station is performed at a higher flow rate than the flow rate when transferring milk.
14. Method according to any of claims 8 to 13, including the step of transferring cleaning liquid between the first portion and the second portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0850159 | 2008-12-19 | ||
| SE0850159-5 | 2008-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010069669A2 true WO2010069669A2 (en) | 2010-06-24 |
| WO2010069669A3 WO2010069669A3 (en) | 2010-08-12 |
Family
ID=42224411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2009/064655 WO2010069669A2 (en) | 2008-12-19 | 2009-11-04 | Milking system layout |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2010069669A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12201080B2 (en) | 2020-03-30 | 2025-01-21 | Delaval Holding Ab | Milking arrangement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU954067A1 (en) * | 1981-03-25 | 1982-08-30 | Всероссийский Ордена Трудового Красного Знамени Научно-Исследовательский И Проектно-Технологический Институт Механизации И Электрификации Сельского Хозяйства | Apparatus for circulation washing of milk line of milking unit |
| SU1528396A1 (en) * | 1988-03-05 | 1989-12-15 | Всесоюзный научно-исследовательский институт электрификации сельского хозяйства | Milking apparatus |
| SU1542491A2 (en) * | 1988-03-05 | 1990-02-15 | С. Я. Горм и И. В. Жоров | Milking device |
| SU1687145A1 (en) * | 1989-06-20 | 1991-10-30 | Всесоюзный научно-исследовательский и проектно-технологический институт по использованию техники и нефтепродуктов в сельском хозяйстве | Milk conduit of milking machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572105A (en) * | 1984-09-20 | 1986-02-25 | Alfa-Laval, Inc. | Backflushing system |
| US5896828A (en) * | 1997-05-22 | 1999-04-27 | Alfa Laval Agri Inc. | Method and apparatus for cleaning milking pipelines and milking equipment |
| SE520278C2 (en) * | 2001-09-20 | 2003-06-17 | Delaval Holding Ab | Arrangement and procedure for milking animals |
| WO2008127177A1 (en) * | 2007-04-13 | 2008-10-23 | Delaval Holding Ab | Milking system and method for circulating washing liquid |
| SE531745C2 (en) * | 2007-06-01 | 2009-07-28 | Delaval Holding Ab | Procedure and arrangement for cleaning of milking systems with multiple milking stations |
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2009
- 2009-11-04 WO PCT/EP2009/064655 patent/WO2010069669A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU954067A1 (en) * | 1981-03-25 | 1982-08-30 | Всероссийский Ордена Трудового Красного Знамени Научно-Исследовательский И Проектно-Технологический Институт Механизации И Электрификации Сельского Хозяйства | Apparatus for circulation washing of milk line of milking unit |
| SU1528396A1 (en) * | 1988-03-05 | 1989-12-15 | Всесоюзный научно-исследовательский институт электрификации сельского хозяйства | Milking apparatus |
| SU1542491A2 (en) * | 1988-03-05 | 1990-02-15 | С. Я. Горм и И. В. Жоров | Milking device |
| SU1687145A1 (en) * | 1989-06-20 | 1991-10-30 | Всесоюзный научно-исследовательский и проектно-технологический институт по использованию техники и нефтепродуктов в сельском хозяйстве | Milk conduit of milking machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12201080B2 (en) | 2020-03-30 | 2025-01-21 | Delaval Holding Ab | Milking arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010069669A3 (en) | 2010-08-12 |
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