FIELD: materials handling facilities. SUBSTANCE: proposed device has pressure vessel with charging valve, compressed air supply pipe, transportation pipe and auxiliary pipe with nozzle devices placed inside transportation pipe. Nozzle devices are arranged at steps on auxiliary pipe. Device is furnished with ring branch pipes secured to overlap holes of nozzle devices. Ring branch pipes are made of elastic material, for instance, rubber, and are secured by clamps before holes in direction of movement of material. EFFECT: improved reliability. 4 dwg
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