| 摘要 |
PROBLEM TO BE SOLVED: To provide a classifier for fine particles of crushed sand capable of improving classifier efficiency by suppressing the interference of air flow that flows into a classification chamber from an air flowing-in passage with baffle plates. SOLUTION: In this classifier for fine particles of crushed sand, a first baffle plate 40, which partitions the classification chamber 4 into a plurality of classification small chambers 4a, is installed almost vertically downward from the upper surface of a main body 1, in a region where the baffle plate 40 does not contact with crushed sand moving over a classifying surface. An exhaust opening 40 is formed in each classification small chamber. A second baffle plate 85 is vertically installed in a boundary part between the classification chamber and a crushed sand discharge chamber 8.
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