APPARATUS FOR SORTING PARTICLE SIZE OF ORE

摘要

PURPOSE: A raw material classifying device is provided to improve work efficiency selecting a raw material as a large ore or a spectral ore by forming a size of an opening part of a screen matte for a particle selection of a line raw material differently according to a position in which a raw material is stacked. CONSTITUTION: A raw material particle selection device (100) selects a size of a raw material (13) falling through a chute (11) in a hopper in which the raw material is stored. In a raw material classifying device, multiple first opening parts for selecting a falling raw material as a fixed size firstly are formed. The first opening part comprises a first screen matte (10) formed by differentiating an opened size; and multiple second opening parts for selecting a raw material selected by the first screen matte to a smaller size formed, and installed at a lower part of the first screen matte. The second opening part comprises a second screen matte (20) formed by differentiating an opened size.