FIELD: dedusting loose, mainly mineral materials such as crushed stone, possibly used in branches of national economy for making mineral raw materials. SUBSTANCE: apparatus includes housing having in upper portion unit for supplying loose material and in lower portion - discharging unit. Between unit for supplying loose material and discharging unit there is cavity whose lower part is communicated with duct of discharging unit. One wall of said duct has convex curvilinear surface. At lower edge of convex curvilinear surface of duct wall slit nozzle is mounted tangentially relative to it and it is connected with branch pipe for supplying air. One or more ducts are provided in housing for removing dusty air out of cavity. EFFECT: simplified design, enhanced efficiency of dedusting materials. 7 cl, 4 dwg
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RU2356633C1 |
