CHARGING DEVICE AND DUST COLLECTOR
To provide a charging device which can adequately remove dust attached to a ground electrode.SOLUTION: A charging device 10 charges dust contained in dust-containing air by corona discharge while circulating the dust-containing air, and includes: a plurality of discharge electrodes 50 supported by a...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a charging device which can adequately remove dust attached to a ground electrode.SOLUTION: A charging device 10 charges dust contained in dust-containing air by corona discharge while circulating the dust-containing air, and includes: a plurality of discharge electrodes 50 supported by a support body 40; a ground electrode 32 which is arranged with a clearance to generate corona discharge with each of the discharge electrodes 50; and an air jetting part 34 which sprays compressed air to the ground electrode 32 from a direction intersecting a circulation direction of the dust-containing air circulated through the clearance between the discharge electrodes 50 and the ground electrode 32, and sweeps off the dust attached to the ground electrode 32. A plurality of circulation holes H for passing the compressed air sprayed from the air jetting part 34 are formed on the ground electrode 32.SELECTED DRAWING: Figure 2
【課題】接地電極に付着した塵埃を適正に除去することができる帯電装置を提供する。【解決手段】含塵空気を流通させながらコロナ放電によって含塵空気に含まれた塵埃を帯電させる帯電装置10であって、支持体40に支持されている複数の放電用電極50と、各々の放電用電極50との間にコロナ放電を発生させるための隙間を挟んで設けられている接地電極32と、放電用電極50と接地電極32との隙間を流通する含塵空気の流通方向に交差する方向から接地電極32に対して圧縮空気を吹き付けて接地電極32に付着した塵埃を払い落とす空気噴出部34と、を備え、接地電極32には、空気噴出部34から吹き付けられた圧縮空気を通過させる複数の流通穴Hが形成されている。【選択図】図2 |
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