摘要 |
An electric dust collecting apparatus includes at least one needle electrode (28) for charging floating particles (5, 65) in air by generating corona discharge around needle points; at least one collecting electrode (26) provided on cell-liked arrangement corresponding to the needle electrodes, for attracting and collecting the charged floating particles by an electrostatic force; and at least one deflection electrode (29) having a rectangularly hollow longitudinal structure comprised of a front plate portion (29a) and side plate portions (29b, 29b) and fixed the needle electrodes on the front plate portion, for applying a deflection force to the charged floating particles to move toward the collecting electrodes by a potential applied from the side plate portions, wherein the at least one deflection electrode (29) having the rectangularly hollow longitudinal structure is obtained from bending a profile plate (31, 32) punched up a sheet metal (30) by a predetermined punch press process, accordingly, the plurality of deflection electrodes can be integratedly formed from a profile punched up a sheet metal by the punching and bending press process, enabling the manufacturing process to have workability and productivity. <IMAGE> |