| 摘要 |
PROBLEM TO BE SOLVED: To efficiently collect dust from air containing the dust by preventing it from scattering again. SOLUTION: A rectangular wave high voltage is applied between dust collecting electrodes. In the section of a positive voltage, negatively charged floating particles are collected on the dust collecting electrode of positive polarity to which the high voltage is applied as indicated in (a). The collected particles are immediately positively charged and form beaded plate agglomerates. In the following section of changing from positive to negative, the polarity of the voltage applied to the dust collecting electrodes is suddenly changed from positive to negative, the beaded plate agglomerates (positively charged) receive force in the direction of the dust collecting electrode of negative polarity by static electricity and change to spherical agglomerates as indicated in (b). In the following section of a negative voltage, as indicated in (c), though the collected particles are negatively charged on the dust collecting electrode of the negative polarity, they change to the spherical agglomerates, wind force and electrostatic force acting as peeling force are reduced and they do not scatter again.
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