| 摘要 |
The apparatus comprises a set of conveyor belts (7, 8) which are guided by guide rails in pairs of diverging paths between a run-on roller (4) and a run-off roller (5). The product to be graded is supplied piece by piece to the upper side of the belts and drop through the spaces between the belts of each pair, as these are gradually removed more and more from one another. Thereby a gentle grading is obtained. The belts (7, 8) preferably have a substantially circular cross-section. |
