| 摘要 |
A filter structure is provided in the liquid-collecting tank of an industrial dust-collector, and a floating ball and an air-exhausting exit are provided in the filter structure. The characteristic lies in that an air-tight non-hole section is provided at the upper end of the filter structure, the inner diameter of the airtight non-hole section is almost the same as that of the floating ball, and a meshed section is provided at the lower end of the filter structure.
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