Process for chilling stream of gas-suspended particles

Details Process for chilling stream of gas-suspended particles Process for chilling stream of gas-suspended particles

1986-12-22

1988-07-26

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Including electrostatic charging

239 13, 427 27, B05B 502

Patent

active

047595000

ABSTRACT:
The process described herein comprises the mixing of a chilled gas into a stream of gas-suspended particles. Preferably the chilled gas is the same as the gas in which the particles are suspended and the particles are electrostatically charged. A novel device is described which provides a chamber extending lengthwise of the device into which channels feed the chilled gas into the particle suspension. The chilled gas is introduced from an external cooling system with the gas being advantageously cooled during passage through a coil whose outer walls are cooled by liquid nitrogen or dry ice. This process and device are of particular utility in a system for the spraying of electrostatically charged particles.

REFERENCES:
patent: 3689237 (1972-09-01), Stark et al.
patent: 3864322 (1975-02-01), Yallourakis
patent: 4281119 (1981-07-01), Lagow et al.
patent: 4313968 (1982-02-01), Sickles et al.
patent: 4577385 (1986-03-01), Omae et al.

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