PROCESS AND DEVICE FOR CHILLING STREAM OF GAS- SUSPENDED PARTICLES

摘要

PROCESS AND DEVICE FOR CHILLING STEAM OF GAS-SUSPENDED PARTICLES 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 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 particle.