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AssigneeMaricap Oy
InventorGöran SUNDHOLM
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A method for conveying material in a pneumatic material conveying system, such as a waste conveying system, which material conveying system comprises at least one material, specifically waste material, input point (60), a material conveying pipe (100) which is connectable into medium communication with a feed-in container of the input point (60), means for providing a pressure difference and/or transport air flow in the material conveying pipe at least for the time of transport of the material, which means for providing the pressure difference and/or transport air flow comprise at least one partial-vacuum generator (125A, 125B), and which material conveying system further comprises at least one separator device (90A, 90B), in which the transported material is separated from the transport air at an outlet end of the material conveying system. In the method the material is conveyed in a first stage from the input point (60) to a conveying pipe (100, 100A, 100B, 100C, 100D, 100E), into at least one container space (202, 202A, 202B) of an intermediate container (200, 200A, 200B) arranged between the input point (60) and the separator device (90A, 90B) by means of suction/pressure difference and/or transport air flow provided by the at least one partial vacuum generator (125A, 125B) in a first time period (t1), and that in a second stage of the method the material conveyed in the previous stage into the at least one container space (202, 202A, 202B) of the intermediate container (200, 200A, 200B) is conveyed by means of suction/pressure difference and/or transport air flow provided by the at least one partial-vacuum generator (125A, 125B) to the separator device (90A, 90B) in a second time period (t2). The invention also relates to a system.
A method for conveying material in a pneumatic material conveying system, such as a waste conveying system, which material conveying system comprises at least one material, specifically waste material, input point, a material conveying pipe, which is connectable into medium communication with a feed-in container of the input point, means for providing a pressure difference and/or transport air flow in the material conveying pipe at least for the time of transport of the material, which means for providing the pressure difference and/or transport air flow comprise at least one partial-vacuum generator, and which material conveying system further comprises at least one separator device, in which the transported material is separated from the transport air at an outlet end of the material conveying system, characterized in that in the method the material is conveyed in a first stage from the input point to a conveying pipe, into at least one container space of an intermediate container arranged between the input point and the separator device by means of suction/pressure difference and/or transport air flow provided by the at least one partial-vacuum generator in a first time period, and that in a second stage of the method the material conveyed in the previous stage into the at least one container space of the intermediate container is conveyed by means of suction/pressure difference and/or transport air flow provided by the at least one partial-vacuum generator to the separator device in a second time period, that in the first stage of the method the material is conveyed in a conveying pipe section, which is located in the material conveying direction between the input point and the intermediate container, and which conveying pipe section has a first nominal diameter, and that from the intermediate container the material is conveyed in a second pipe section to the separator device, which second conveying pipe section has a second nominal diameter, and that the first nominal diameter of the conveying pipe section located in the material conveying direction before the intermediate container is larger than the second nominal diameter of the second conveying pipe section between the intermediate container and the separator device.
A pneumatic material conveying system, such as a waste conveying system, which material conveying system comprises at least one material, specifically waste material, input point, a material conveying pipe, which is connectable into medium communication with a feed-in container of the input point, means for providing a pressure difference and/or transport air flow in the material conveying pipe at least for the time of transport of the material, which means for providing the pressure difference and/or transport air flow comprise at least one partial-vacuum generator, and which material conveying system further comprises at least one separator device, in which the transported material is separated from the transport air at an outlet end of the material conveying system, characterized in that in the system, the conveying pipe is provided with at least one intermediate container, in which there is at least one container space, which is connectable to the conveying pipe between the input point and the separator device, and that in the system the material is arranged to be conveyed in a first stage from the input point along the conveying piping, a conveying pipe section of which has a first nominal diameter, into the intermediate container, into the container space thereof, by means of suction/pressure difference and/or transport air flow provided in the conveying pipe by the at least one partial-vacuum generator, and that in the system the material conveyed into the intermediate container is arranged to be conveyed in a second stage by means of suction/pressure difference and/or transport air flow provided by the at least one partial-vacuum generator from the intermediate container to the separator device in a second conveying pipe section, which has a second nominal diameter, and that the first nominal diameter is larger than the second nominal diameter.
Dependencies are inferred from the claim text.