| 摘要 |
A jigger for the processing of minerals such as coal, consisting of a traveling upper trough and a travelling lower piston, the upper through being equipped with a sieve and closed from below by a continuous flexible membrane, the lower piston interrelating with the diaphragm of the upper troughto give vertical pulsations to the water therein. The trough and piston are linked to each other via double-arm levers, in turn hinged to supports. The double-arm leve rs together with the upper trough and lower piston form a system of hinged parallelograms, providing uniform distribution of pulsations along the whole capacity of the upper trough that produces conditions for the intensification of the jigging process. Besides this intensification, decreasing of energy-consumption and simplicity of design are achieved. A laboratory sampl e was made and its testing showed good technological results and confirmed the reliability of a unit simple in manufacturing, operating and maintenance.
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