Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1979-05-18
1981-05-05
Nozick, Bernard
Gas separation
Means within gas stream for conducting concentrate to collector
55118, 55124, 55103, 55138, 55139, 55152, 55155, 55DIG39, 55122, 361230, 361235, B03C 300
Patent
active
042656419
ABSTRACT:
Method and apparatus for charging and collecting submicron particles. The particles are charged by a needle-to-plate ionizer having offset rows of needles which are spaced from the plate such that voltage gradients of 6 KV/cm and higher are achieved. Needle-to-needle spacing and effective area of the plate are such that a corona current having a density of at least 4 ma/m.sup.2 flows between the needles and the plate. Circuitry is provided that in combination with the ionizer quickly quenches arcs while maintaining the voltage across the ionizer. Charged particles are collected in a collecting section having a deflector electrode and a pair of collecting plates. The deflector electrode includes a conductor embedded in a dielectric material having a dielectric constant greater than 1, which dielectric material suppresses arcs between the deflector electrode and the collecting plates.
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Limpus Lawrence L.
Monsanto Company
Nozick Bernard
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