| 摘要 |
PROBLEM TO BE SOLVED: To provide a recovery control technique in an under-screen air chamber type wet gravity sorter, by which the substance to be recovered can be sorted with good precision regardless of its kind. SOLUTION: A recovery control apparatus, which is arranged in the under-screen air chamber type wet gravity sorter (10) provided with: a sorting chamber (12) in which the substance to be sorted is thrown; a pulsating chamber (14) positioned below the sorting chamber; and a screen (16) positioned between the sorting chamber and the pulsating chamber, is provided with a magnetostriction type float sensor (22) arranged to be extended substantially vertically in the sorting chamber. A float sliding along a rod of the magnetostriction type float sensor is formed to have desired specific gravity. COPYRIGHT: (C)2008,JPO&INPIT
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