Suppression of respirable dust

Details Suppression of respirable dust Suppression of respirable dust

B - Operations, Transporting

01

D

165/1

B01D 47/04 (2006.01)

Patent

CA 1114281

ABSTRACT OF THE DISCLOSURE This invention suppresses dust, and particularly respirable dust, by preventing the dust from becoming airborne at locations where it could escape from the dusty material with which it is associated, for example, at transfer points and other locations where the respirable dust can be released into the surrounding atmosphere. Foam, having bubbles small enough to be broken by respirable dust particles, is brought in con- tact with the respirable dust where small bubbles, small enough to be bursted by respirable dust particles, are imploded and the bubbles wet the dust particles and cause adherence of the particles to adjacent surfaces, such as other foam or other parts of the dusty material. The foam may be discharged into dusty material at transfer points where the dusty material falls by gravity and thereby opens up spaces between portions of the material which are at zero gravity as a result of their free fall.

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