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PROBLEM TO BE SOLVED : To attain a shape and a structure, which enable suppression of re-scattering and energy saving brought about by lengthening of a cleaning period, in an electric dust collector.
SOLUTION : In an electric dust collector, a leeward end position of a voltage electrode plate 6 of a dust collection part 1 is located on a leeward side with respect to a leeward end position of a grounding electrode plate 3. The electric dust collector has a structure which enables re-scattering dust to be captured with electrostatic force by the voltage electrode plate 6 at or behind a leeward end part of the grounding electrode plate 3, even when dust accumulated at a leeward end of the grounding electrode plate 3 by gradient force becomes excessive and re-scatters. Thereby, effect of enabling suppression of re-scattering and energy saving can be obtained.
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