Back to results
US 2009/0220310 A1Published application
Method and Apparatus for Conveying Material and Ejector Apparatus
AssigneeMaricap Oy
InventorGoran Sundholm
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeMaricap Oy
InventorGoran Sundholm
Estimating the term…
A method for conveying material by applying a pressure difference in a conveying conduit (4), in which method the material is fed into the conveying conduit (4) and in the conveying conduit further into a separating device (5), where the material being conveyed is separated from conveying air, in which method a negative pressure is created in the conveying conduit (4) by means of an ejector apparatus (6), whose suction side is connected to the separating device (5), said ejector apparatus being operated using an operating medium consisting of a liquid mist, especially an aqueous liquid mist, said medium being sprayed through at least one spraying nozzle (122) into an ejector tube (128) directed into a separating element (38). In the method, the generation of the negative pressure to be produced is intensified according to need by limiting the flow of gases, such as air, into the ejector tube (128) from the direction opposite to the spraying direction of its operating medium, i.e. from the outlet end (129) of the ejector tube. The invention also relates to an apparatus and an ejector device.
Method for conveying material by applying a pressure difference in a conveying conduit (4), in which method the material is fed into the conveying conduit (4) and in the conveying conduit further into a separating device (5), where the material being conveyed is separated from conveying air, in which method a negative pressure is created in the conveying conduit (4) by means of an ejector apparatus (6), whose suction side is connected to the separating device (5), said ejector apparatus being operated using an operating medium consisting of a liquid mist, especially an aqueous liquid mist, said medium being sprayed through at least one spraying nozzle (122) into an ejector tube (128) directed into a separating element (38), characterized in that the generation of the negative pressure to be produced is enhanced according to need by limiting the flow of gases, such as air, into the ejector tube (128) from the direction opposite to the spraying direction of its operating medium, i.e. from the outlet end (129) of the ejector tube.
Apparatus for conveying material, preferably bulk material in food industry, in particular slaughtering offal and food waste, or working residual in engineering industry, by the application of a pressure difference in a conveying conduit (4), said apparatus comprising a material conveying conduit (4), a separating device (5) and means for creating a negative pressure in the conveying conduit (4) by using an ejector apparatus (6), whose suction side is connected to the separating device (5), said ejector apparatus being operated by an operating medium, said ejector apparatus (6) comprising at least one nozzle (121, 122) for spraying a liquid mist and for using the liquid mist as the operating medium of the ejector and means (125, 126, 127, 131) for supplying a liquid to the nozzle, and which apparatus comprises at least one ejector nozzle (122) arranged in or near an ejector tube (128), said ejector tube being directed towards a separating element (38) and extending into the separating element (38), characterized in that the apparatus comprises means for enhancing the negative pressure to be produced according to need by limiting the flow of gases, such as air, into the ejector tube (128) from its distal end (129) relative to the spraying direction of the operating medium, i.e. from the outlet end of the ejector tube.
Ejector device, comprising at least one ejector nozzle (122) and at least one ejector tube (128), into which the ejector nozzle sprays, and a passage for bringing a second medium into the ejector jet (122), characterized in that the device comprises means whereby the negative pressure produced can be enhanced according to need by limiting the flow of gases, such as air, into the ejector tube (128) from the distal end (129) relative to the spraying direction of the operating medium, i.e. from the outlet end (129) of the ejector tube.
Dependencies are inferred from the claim text.