Process and apparatus for the collection of high-resistance dust

Details Process and apparatus for the collection of high-resistance dust Process and apparatus for the collection of high-resistance dust

1977-07-01

1979-12-11

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55 10, 55 13, 55122, 55133, 55138, 55111, B03C 308

Patent

active

041781562

ABSTRACT:
An electrostatic precipitator for the removal of dust from a gas stream entraining same is subdivided into a plurality of flow passages which can be selectively or collectively shut off. When one of these flow passages is closed off, the collecting electrodes can be rapped, after the high voltage has been disconnected, to cause the collecting electrodes to shed their dust. A conductivity-promoting substance in liquid or powder form is then sprayed into the closed-off flow compartment to deposit upon the collecting electrodes thereof and simultaneously the electrodes are energized. Thereafter, the flow of the gas stream entraining the gas through the flow passages is recommenced and electrostatic deposition of dust takes place in the usual manner. The system has been found to be highly effective for the collection of high-resistance dusts and to avoid reverse ionization effects.

REFERENCES:
patent: 1016476 (1912-02-01), Cottrell
patent: 1329825 (1920-02-01), Bradley
patent: 1331225 (1920-02-01), Wolcott
patent: 2490979 (1949-12-01), Palmer
patent: 2556247 (1951-05-01), Hedberg
patent: 2817412 (1957-12-01), Klemperer
patent: 3957462 (1976-05-01), Schminke et al.
patent: 3988127 (1976-10-01), Schumann
patent: 3988130 (1976-10-01), Ramsey et al.

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