Patent ID: 9357694
Filing Date: 2016-06-07
CPC Classification: A01D,B03B

Claim Text:
1. A separation system for separating a crop from a mixture, the separating system comprising: a conveying device supplying a substantially compact mixture as a conveyed stream, the mixture comprising the crop and admixtures in the form of clods, rocks, and similar solid bodies; at least one drop stage arranged downstream of the conveying device and effecting loosening of the mixture supplied by the conveying device to the at least one drop stage; means for supplying an air stream to the mixture, wherein the air stream is interacting as a conveying medium with the mixture; at least one retaining element downstream of the at least one drop stage, wherein the at least one retaining element is facing the crop and the admixtures falling down within the at least one drop stage and is interacting with the air stream such that, beginning at the at least one retaining element, the crop and the admixtures are separately conveyed as sorted individual parts in opposite conveying directions, respectively, and separately discharged from the separation system; wherein, above the at least one retaining element that at least section-wise is flowed through by the air stream, a separation plane is defined that at least phase-wise is located below the crop and below the admixtures, the crop and the admixtures being in an excited loosened state; wherein in the area of the at least one retaining element, at least above the separation plane, the air stream is divided into a lifting air stream and a transverse air stream, wherein the lifting air stream and the transverse air stream are oriented in different directions of action onto the crop and the admixtures; wherein, above the at least one retaining element or the separation plane, a mixed zone in which the crop and the admixtures are turbulently distributed is defined, wherein a separation action of the separation system is affected in the mixed zone simultaneously by the lifting air stream that is oriented substantially vertical to the separation plane and the transverse air stream that is extending substantially parallel to the separation plane.