Device and method for separating root crops, in particular sugar beet, from additions, in particular stones, obtained during harvest

摘要

An assembly frees sugar beet (Z) of stones and earth and feeds the beet along a first conveyer (10) for pre-cleaning with brushes (42) mounted on a roller (40). Following pre-cleaning the beet continue on a second conveyer (20). The upper side of the brush roller (40) is especially in the same plane or projects above both the first (10) and second (20) conveyers. A trap (50) is located under the brush roller (40) which catches and beet which drops out of the brushes (42). Stones and earth falling from the brushes (42) impinge on a deflector plate (60) inclined at between 90 and 130 degrees to the vertical and are removed.