| 摘要 |
An installation and process for dry cleaning granular foodstuffs and feedstuffs, such as cereals, are disclosed. The separation of the product to be cleaned into different fractions is effected in a single oscillating group having an upper sizing screen (2) that can be composed of any desired combination of screens (15, 18 ; 70, 71), has a closed bottom and is directly arranged above a weighting screen (3, 4 ; 72, 73 ; 81) in such a manner that the two screening units form a V or fork with respect to each other. The weighting screen (3, 4 ; 72, 73 ; 81) can also be combined to form various designs, such as a single or double-layer table, or as a lower stone sifting table with an upper layer. Through the fork-like gap (22) air is supplied to the weighting tables. An essential feature is that the product to be cleaned is conveyed without interruption from one screening unit to the other and from the beginning to the end of the machine (I) in a flattened-out state, resembling a textile fabric web. |
