| 摘要 |
<p>A device for separating multi-fraction particulate materials includes a housing with an inner passage for admitting the material to be processed and an outer passage having an outlet and connected to a suction device for producing an air stream in an upward direction. A guide body with a conical surface and a shoulder having an edge are mounted in the housing. The second passage has in the region below the shoulder a zig-zag shaped passage portion. The incoming stream of mixture falls on the conical surface, then on the edge of the shoulder and then is discharged into the zig-zag shaped portion so that when suction is applied to the outlet of the outer passage the material undergoes repeated directional changes during each of which the air stream travels transversely through the material.</p> |
