VIBRATING SCREEN FOR FRACTIONATING EARTH AND SAND

摘要

PROBLEM TO BE SOLVED: To sufficiently ensure a residence length of an over-specification material on a screen. SOLUTION: In a vibrating screen 1 for fractionating earth and sand in which the earth and sand 4 is supplied on the screen 3 while vibrating the screen 3 consisting of a mesh by a vibrating body and the earth and sand passed through the screen 3 and allowed to fall is fractionated as an under-specification material 4a and earth and sand moved on the screen 3 to be sent in the discharge port direction is fractionated as the over-specification material 4b, one or plural obstacle rods 5 for adjusting the residence time of the earth and sand 4 on the screen 3 are arranged on the screen 3.