Abstract: A system for monitoring the fermentation process in connection with ensilage of fodder (1) comprises a sensor device (3) arranged in the fodder during the ensilage thereof and a monitoring device (11) operatively connected to the sensor device during the ensilage. The sensor device (3) comprises at least one sensor (3a-c) provided for repeatedly measuring the content of at least one chemical substance in the fodder, which is affected by the fermentation process. The monitoring device comprises receiving means (12) provided for receiving the repeatedly measured values of the content of the chemical substance; processing means (13) provided for comparing the repeatedly measured values with reference values of the content of the chemical substance; and notifying means (14-16) provided for notifying a farmer (17) depending on the outcome of the comparison of the repeatedly measured values and the reference values.

Abstract: A system for managing the supply of consumable matter to be consumed by milk producing animals includes a supply arrangement (24, 26, 28, 34, 36, 38) for supplying consumable matter to a feeding trough (14) from which the animal (12) can eat and/or drink, and a control unit (30) which controls the supply of the consumable matter to the feeding trough (14). The system also has an analysis device (40) adapted to analyse the milk from an individual milked animal (12) with regard to at least one property of the milk. The control unit (30) is arranged to receive information from the analysis device (40) and to automatically control the composition of the consumable matter supplied to the feeding trough (14) in dependence on the information received from the analysis device (40).

Abstract: A method for management of animals in an area (11) including a plurality of grazing paddocks (12a-f), in which the animals graze, and a milking area (13), in which the animals are milked, wherein the milking area is accessible from each of the grazing paddocks and each of the grazing paddocks is accessible from the milking area via a sorting gate arrangement (17a, 17c). According to the method, each of a plurality of animals which have grazed in the grazing paddocks is identified (21) and milked (22) in the milking area. A nutritional need and/or a milk production capacity of each of the animals which have been identified and milked is/are established (23). Finally, each of the animals is automatically guided (24) by the sorting gate arrangement, subsequent to the milking of the animal, to enter a selected one of the grazing paddocks depending on the nutritional need and/or the milk production capacity of the animal.

Abstract: A management system for managing animals on a dairy farm includes a receiving element (12) provided for receiving, for each of the animals, a value of a protein content and a value of a fat content of milk from the animal as milked on the dairy farm; a calculating element (19) provided for calculating, for each of the animals, the ratio of the values of the protein and fat contents of milk from the animal; a comparison element (20) provided for fetching, for each of the animals, from a database (18) a reference protein/fat ratio, and for comparing the calculated protein/fat ratio with the reference protein/fat ratio; and a notifying element (21-23), preferably a display unit (21) or a loudspeaker (22), provided for notifying, for each of the animals, a dairy farmer (24) of the dairy farm depending on the outcome of the comparison.

Abstract: A method for management of animals in an area (11) including a plurality of grazing paddocks (12a-f), in which the animals graze, and a milking area (13), in which the animals are milked, wherein the milking area is accessible from each of the grazing paddocks and each of the grazing paddocks is accessible from the milking area via a sorting gate arrangement (17a, 17c). According to the method, each of a plurality of animals which have grazed in the grazing paddocks is identified (21) and milked (22) in the milking area. A nutritional need and/or a milk production capacity of each of the animals which have been identified and milked is/are established (23). Finally, each of the animals is automatically guided (24) by the sorting gate arrangement, subsequent to the milking of the animal, to enter a selected one of the grazing paddocks depending on the nutritional need and/or the milk production capacity of the animal.

Abstract: A system for monitoring the fermentation process in connection with ensilage of fodder (1) comprises a sensor device (3) arranged in the fodder during the ensilage thereof and a monitoring device (11) operatively connected to the sensor device during the ensilage. The sensor device (3) comprises at least one sensor (3a-c) provided for repeatedly measuring the content of at least one chemical substance in the fodder, which is affected by the fermentation process. The monitoring device comprises receiving means (12) provided for receiving the repeatedly measured values of the content of the chemical substance; processing means (13) provided for comparing the repeatedly measured values with reference values of the content of the chemical substance; and notifying means (14-16) provided for notifying a farmer (17) depending on the outcome of the comparison of the repeatedly measured values and the reference values.

Abstract: A management system for managing animals on a dairy farm includes a receiving element (12) provided for receiving, for each of the animals, a value of a protein content and a value of a fat content of milk from the animal as milked on the dairy farm; a calculating element (19) provided for calculating, for each of the animals, the ratio of the values of the protein and fat contents of milk from the animal; a comparison element (20) provided for fetching, for each of the animals, from a database (18) a reference protein/fat ratio, and for comparing the calculated protein/fat ratio with the reference protein/fat ratio; and a notifying element (21-23), preferably a display unit (21) or a loudspeaker (22), provided for notifying, for each of the animals, a dairy farmer (24) of the dairy farm depending on the outcome of the comparison.

Abstract: A filter system 10 includes a pre-filter in a pre-filter zone 18 and a final filter in a final filter zone 22. The pre-filter is in the form of at least one inertial filter, e.g. an array 28 of axial flow cyclones 30. The final filter is in the form of a media filter 36 formed of a lofted bat of fibrous material which is of non-homogeneous structure through its depth. An upstream side is lofty, and a downstream side is of set structure. A contaminated fluid flow stream enters via an inlet 12. Contaminants are filtered out by the axial flow cyclones to be removed via a dust cover 32. Pre-filtered fluid flows via a chamber 20 through the media filter 36. After final filtration in the media filter it exits via a chamber 24 and an outlet 14.

Abstract: A filter system 10 includes a pre-filter in a pre-filter zone 18 and a final filter in a final filter zone 22. The pre-filter is in the form of at least one inertial filter, e.g. an array 28 of axial flow cyclones 30. The final filter is in the form of a media filter 36 formed of a lofted bat of fibrous material which is of non-homogeneous structure through its depth. An upstream side is lofty, and a downstream side is of set structure. A contaminated fluid flow stream enters via an inlet 12. Contaminants are filtered out by the axial flow cyclones to be removed via a dust cover 32. Pre-filtered fluid flows via a chamber 20 through the media filter 36. After final filtration in the media filter it exits via a chamber 24 and an outlet 14.

Abstract: A hydro-cyclone includes a hollow round casing having, co-axially in series, a cylindrical portion and a frusto-conical portion tapering toward one end of the cyclone. An end plate closes off the cylindrical portion opposed to the taper end. A tangential inlet conducts a fluid flow stream to be classified tangentially into the cylindrical portion. A co-axial, heavy fraction outlet is provided at the taper end. A co-axial, light fraction outlet is provided through the end plate, preferably via a porthole in the cylindrical portion axially spaced from the end plate. The invention provides for drawing-off of fluid flowing from the inlet inwardly in a boundary layer adjacent the end plate via a circulation outlet in the end plate, preferably annularly around the light fraction outlet.

Abstract: A vortex tube gas cleaning device 10 is used to clean a particle containing gas flow stream of particles. The device 10 has an outer tube 12 having an inlet 14 at an upstream end, and, in series downstream of the inlet 14 a vortex generator 16 in a vortex region 18, and a separation region 20. An inner extraction tube 30 is located at the downstream end of the tube 12 and extends concentrically within the outer tube 12, upstream, canti-lever fashion. A peripheral outlet region 24 is defined annularly around the inner tube 30 downstream of the separation region 20 and leads to outlet ports 48. A central outlet region 28 is defined within the inner tube 30 downstream of the separation region 20 and leads to an outlet. The manner of location of the inner tube 30 ensures that the peripheral outlet region 24 is continuous or uninterrupted, especially also through an annular orifice 29.

Abstract: A vortex tube gas cleaning device 10 is used to clean a particle containing gas flow stream of particles. The device 10 has an outer tube 12 having an inlet 14 at an upstream end, and, in series downstream of the inlet 14, a vortex generator 16 in a vortex region 18, and a separation region 19. An inner extraction tube 40 is located at the downstream end of the tube 12 and extends concentrically within the outer tube 12, upstream, canti-lever fashion. A peripheral outlet region 22 is defined annularly around the inner tube 40 downstream of the separation region 19 and leads to an outlet port 36. A central outlet region 24 is defined within the inner tube 40 downstream of the separation region 19 and leads to an outlet 48. A ring 50 which is integral with the inner tube 40 extends into the outer peripheral region 22. It has an oblique leading wall 52 leading to a crown defining an annular orifice 54.

Abstract: A vortex tube gas cleaning device 110 is used to clean a particle containing gas flow stream of particles. The device 110 has an outer tube 112 having an inlet 114 at an upstream end, and, in series downstream of the inlet 114 a vortex generator 116 in a vortex region 118, and a separation region 119. An inner extraction tube 140 is located at the downstream end of the tube 112 and extends concentrically within the outer tube 112, upstream, canti-lever fashion. A peripheral outlet region 122 is defined annularly around the inner tube 140 downstream of the separation region 119 and leads to an outlet port 136. A central outlet region 124 is defined within the inner tube 140 downstream of the separation region 119 and leads to an outlet 148. The periphery 130 of the outer tube 112 diverges at an angle 132 through the vortex generating region 118 and the separation region 119. The periphery of the vortex generator 116 diverges correspondingly.