| 摘要 |
PROBLEM TO BE SOLVED: To uniformly illuminate a gold line area on a rocking table, in a table specific gravity beneficiation system.SOLUTION: In a table specific gravity beneficiation system 300, a gold line area is illuminated from obliquely above by at least two illumination parts 120A and 120B arranged on both sides of the gold line area along the gold line area on a rocking table 3. At least the two illumination parts 120A and 120B are respectively composed of a plurality of light-emitting elements arranged in a plurality of light-emitting areas divided in at least the lateral direction, and are a surface light source capable of controlling brightness of illumination in a light-emitting area unit by an illumination control part of a control device 140. The illumination control part controls the brightness of the illumination in a plurality of light-emitting area units divided in at least the lateral direction, and uniformly illuminates the gold line area on the rocking table 3 by at least the two illumination parts 120A and 120B.SELECTED DRAWING: Figure 2 |
