JPS56100655A - Electric dust precipitation method - Google Patents

Abstract

PURPOSE: To considerably decrease dissipation of dusts into the atmosphere and improve dust collection efficiency by directing the notch or opening of each dust precipitating electrode to the direction opposing to the gas flow, and capturing the dusts which are rescattered by hammering impact into their inside surfaces.

CONSTITUTION: A dust precipitating electrode 1 is so constituted that a notch 2 is directed over the entire length of the pipe toward the direction where dusts pass, like a half split pipe. The particles scattered by hammering flow to the dust precipitating electrodes 1 of the lower positions and stick thereon. These are divided largely to the particles b₁ sticking on the outside surface of the half-split pipes and the particles b₂ sticking on their inside surfaces. The greater part thereof are the particles b₂. Even if the dust particles stuck on the inside surfaces receive the force in the gas flow direction by the subsequent hammering, they are blocked by the pipe walls of the dust precipitating electrodes, and are further prevented from going toward the dust precipitating electrodes of the lower positions, thus they fall by gravity along the pipe walls. In this way, the greater part of the dust pariticles are prevented from going toward the dust precipitating electrodes of the next positions.

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