Powder charging device

Details Powder charging device Powder charging device

1979-05-03

1980-10-14

Saifer, Robert W.

Fluid sprinkling, spraying, and diffusing

Electrostatic type

With fluid entrainment

239105, 361226, B05B 502

Patent

active

042276527

ABSTRACT:
On the downstream side of a large-diameter cylindrical flow path is disposed a small-diameter cylindrical flow path having a smaller inner diameter than the inner diameter of the large-diameter cylindrical flow path contiguously to the large-diameter cylindrical flow path, an annular electrode is disposed at the upstream end of the small-diameter cylindrical flow path, a needle electrode is provided at the center of the annular electrode applying a D.C. high voltage between the electrodes, and upon charging powder contained in a mixed-phase flow through said cylindrical flow paths, a substantial slip velocity is given to the mixed-phase flow adjacent to the surface of the annular electrode.

REFERENCES:
patent: 3630441 (1971-12-01), Felici et al.
patent: 3951340 (1976-04-01), Point
patent: 3964683 (1976-06-01), Gimple
patent: 4009829 (1977-03-01), Sickles
patent: 4020393 (1977-04-01), Porter
patent: 4039145 (1977-08-01), Felici et al.

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