| 摘要 |
A jig has a housing, a sieve, pulsers, conveyers for source material, for unloading heavy and light fractions, moreover, transverse inclined riffles are mounted on the sieve, with the height not less than 3dmax, where dmax - maximum size of coarseness of the source material. The riffles are mounted at an angle not less than 75 DEGREE to the plane of sieve.
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