| 摘要 |
The machine 1 comprises a rotary screen 2 consisting of a screening cylinder 20 mounted rotatably at an angle on a drive shaft 21 and perforated by series of perforations 25a, 25b, 25c. Combs 30 are housed in the cylinder 20 with their teeth 31 extending radially inwards so as to reach through and to divide the grain nodule advancing through the cylinder 20. The screen 2 advantageously slopes and/or is of variable speed according to the type of grain and has at least one volution 50a, 50b at the top and bottom of the screen. <IMAGE>
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