초록 ▼

A selection machine and process for fine particulate material such as, for example, semolina wheat or other food or industrial products in powdery or granular form, where the particulate material is distributed on a continuous mobile support, is transported from the support to a scanning station for

A selection machine and process for fine particulate material such as, for example, semolina wheat or other food or industrial products in powdery or granular form, where the particulate material is distributed on a continuous mobile support, is transported from the support to a scanning station for the identification in the particulate material, of undesirable parts thereof, and their position on the support, and, subsequently, to a sorting station having a photoconducting element that can be moved in synchronism with the support and on which photoconducting element is formed a latent image of electrostatic charges, corresponding to the position of the undesirable parts, which electrostatic charges separate the undesirable parts from the desired particulate material by electrostatic attraction.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for sorting particulate material containing desirable and undesirable components, and removing undesirable components therefrom, comprising:(A) mobile support means for supporting and transporting said particulate material on a surface thereof;(B) means for d

[ What is claimed is:] [1.] An apparatus for sorting particulate material containing desirable and undesirable components, and removing undesirable components therefrom, comprising:(A) mobile support means for supporting and transporting said particulate material on a surface thereof;(B) means for determining and indicating the presence and position of said undesirable components on said mobile support means;(C) means for removing said undesirable components from said mobile support means, comprising:(1) a photoconducting means capable of moving in a manner synchronized with the motion of said mobile support means, comprising a photoconducting surface having a position thereon corresponding to a position on said mobile support means;(2) electrostatic charge means for providing an electrostatic charge to said photoconducting surface;(3) latent image generation means for generating a latent image of electrostatic charges on said photoconducting surface at one or more positions thereon corresponding to one or more positions on said mobile support means;wherein said photoconducting means is disposed relative to said mobile support means such that said latent image on said photoconducting surface and the corresponding position on said mobile support means come into sufficiently close proximity that particulate material located at said position on said mobile support means are attracted by, and move to, said photoconducting surface; and(4) means for removing particulate material from said photoconducting surface.