ELECTRIC DUST COLLECTOR, DISCHARGE ELECTRODE, METHOD FOR PRODUCING THE DISCHARGE ELECTRODE, AND METHOD FOR PRODUCING DISCHARGE NEEDLE

摘要

This invention provides a wet-type electric dust collector which has improved corrosion resistance while properly ensuring discharge action. A layer is provided on a discharge electrode in an electric dust collector for removing mist contained in a corrosive exhaust gas. The layer is formed by coating the whole surface of a needle--type rigid discharge electrode, provided with a support pipe and a discharge needle, with a thermoplastic resin. The coating layer in the front end face of the discharge needle is removed by rough polishing to expose a coarse discharge end face.