| 摘要 |
PROBLEM TO BE SOLVED: To enhance dust collection efficiency in an electrostatic dust collector equipped with a charging part and a dust collection part, and a charger. SOLUTION: The charging part 20 of the electrostatic dust collector 10 is equipped with a plurality of discharge wires 21 arranged at an equal interval in the surface direction crossing a flow direction of particles at a right angle and opposed electrodes 22 and 23 having a plurality of ventilating holes 24 formed thereto and arranged to the surface crossing the flow direction of particles at a right angle. When high voltage is applied between the plurality of the discharge wires 21 and the opposed electrodes 22 and 23 to generate corona discharge, a definite number or above of charging regions formed around the discharge wires 21 are continuously formed in the direction crossing the flow direction of particles at a right angle without forming a gap. Further, the ratio (D/b) of the distance (b) between the discharge wires and the opposed electrodes and the mesh opening D of the ventilating holes of the opposed electrodes is set to≥0.05. COPYRIGHT: (C)2009,JPO&INPIT
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