Patent ID: 11939174
Assignee: MARICAP OY
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. A pneumatic material conveying system, comprises at least one material input point, a material conveying pipe connectable into medium communication with a feed-in container of the input point, at least one partial-vacuum generator configured to provide at least one of a pressure difference and transport air flow in the material conveying pipe at least for the time of transport of the material, the material conveying system comprising:
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, the conveying pipe comprising at least one intermediate container, in which there is at least one container space, connectable to the conveying pipe between the input point and the separator device, and
a waste conveying system,
wherein 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 having a first nominal diameter, into the intermediate container, into the container space thereof, via at least one of suction/pressure difference and transport air flow provided in the conveying pipe by the at least one partial-vacuum generator,
wherein the material conveyed into the intermediate container is arranged to be conveyed in a second stage via at least one of suction/pressure difference and 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
wherein the first nominal diameter is larger than the second nominal diameter.