DUST SUPPRESSION METHOD Russian patent published in 2017 - IPC E21F5/02 E21F5/20 

FIELD: mining engineering.

SUBSTANCE: invention relates to dust suppression at negative and moderately positive temperatures of air and rock in mine workings and quarries directly at the dust source. The proposed dust suppression method includes supply of compressed air to a nozzle of a snow generator with following direction of snow flame into a dust cloud. In this case, compressed air is preliminarily divided into wet hot and dry cold portions. Wherein, the cold portion is supplied to the nozzle of the snow generator, the generated snow is directed to the upper portion of the dust cloud, and hot portion of compressed air is directed to the lower portion of the dust cloud directly to the dust formation source. At that the flames of the hot air flow opening and the cold snow flow do not intersect.

EFFECT: increased suppression reliability of strong dust formation sources.

1 dwg