B - Operations – Transporting – 03 – C
Patent
B - Operations, Transporting
03
C
183/57
B03C 3/74 (2006.01) B03C 3/88 (2006.01)
Patent
CA 1045563
ABSTRACT OF THE DISCLOSURE An improved drag scraper assembly for electrostatic precipitators of the type having an endless chain belt above a particle collection surface of the precipitator and having a top flight advancing in the direction of gas flow through the precipitator and a bottom flight advancing in the direction opposite the gas flow. A drag scraper is secured to the chain belt traverse to the flow of the gas for pushing particles collected on the surface toward a collection hopper for the particles. A baffle assembly extends between the lower portions of adjacent collector electrodes of the precipitator and the particle collection surface for obstructing the flow of gas between the lower portions of the collector electrodes and the collection surface. The baffle assembly includes a first portion which is pivotable by the drag scraper advancing with the top flight to permit passage of the drag scraper through the baffle assembly. The baffle assembly further includes a second portion which is pivotable by the drag scraper advancing with the lower flight to permit passage of the drag scraper and the particles through the baffle assembly. The assembly comprises a platform beneath the first portion of each of the baffle assemblies for preventing the flow of gas between the first portions and fixed portions of the baffle assembly during pivotable movement of the first portion as the drag scraper passes through the baffle assembly.
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