Back to results
US 2020/0101495 A1Published application
Air classifier with a cyclone-like effect for waste management applications
OwnerDirk Barnstedtinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerDirk Barnstedtinventor
Estimating the term…
The here present invention introduces a method and a device applying said method for the separation of a primarily heterogeneous material stream, as commonly encountered in the waste management industry. The device primarily constitutes a housing which features a cylindrical component, into which a gas stream is introduced by means of a gas injection nozzle, which passes through the material stream, which contains individual fractions at least once. Due to the specific curvatures of the cylindrical housing part and the specific arrangement of several flow control elements as well as the associated interaction of the undisturbed laminar gas/material stream with the separation of the individual fractions in the interior of the housing, a compact design of the device as well as a high degree of separation can be achieved.
A method for the complete separation of light-weight laminar fractions (2′″) from a heterogeneous material stream (2) which contains a multitude of different fractions (2′, 2″, 2″), whereby the material stream (2) is guided to a housing (3), into which at least one gas stream (4) is introduced which passes through the material stream (2) introduced into the housing (3) at least once, thereby capturing at least one light-weight fraction (2′″) to then guide it along at least two guide elements (5,6,9,11) on an S-type-shaped laminar flow path (7), at whose end section at least one suction extractor unit (8) for at least one fraction (2′″) is installed, whereby at least two guide elements (6,9) are placed in the inlet area of the suction extractor unit (8), whose curvature with a specified radius (r2, r3) points into the same direction and the curvature of radius r2 pointing into the opposite direction of the curvature of radius r1 of the cylindrical part (11) of the housing (3).
A device for the separation of a heterogeneous material stream (2), preferably in the waste management industry, with a multi-part housing (3) having at least one cylindrically shaped part (11) and at least one gas injection nozzle (12) and at least one suction extraction unit (8) whereby the injected gas stream (4) discharged from the at least one gas injection nozzle (12) passes through the material stream (2) at least once thereby capturing the material fractions (2″, 2′″) to transport them in the direction of the at least one cylindrically shaped housing wall (11) to then, due to the curvature of the housing wall (11), further transport it in a circular-arc-like path in the direction towards the suction extraction unit (8), whereby at least one adjustable guide element (5) is arranged within the housing (3) below the cylindrically shaped housing wall (11), which controls the direction and speed of at least one gas/material stream (2″, 2′″) before it is routed to the cylindrical housing part (11) along a circular-arc-like path.
Dependencies are inferred from the claim text.