FIELD: mining industry, particularly, devices for holes drilling and reaming in hard rocks. SUBSTANCE: dust removal plant includes case with holes for passage of drill rod and connected with two exhaust pipes, each accommodating liquid sprayer, appliance for drillings withdrawal consisting of two nozzles. Internal surface of each nozzle has longitudinal helical grooves with dovetail section. Each nozzle body is made of bimetal. EFFECT: improved ecological conditions in zone of drilling operation due more qualitative collection and removal of dust. 3 dwg
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