Packaging devices belong to the lifting and transport machineries intended for overload of bulk storage of granular cargo in a small volume con-tainer. Conducted by the author workflow analyzes of packaging devices for a number of feed enter-prises in Samara, Orenburg and Ulyanovsk regions revealed a number of problems that reduce their effectiveness. The main ones are: obstruction of the dosing nozzles, the presence of stagnant zones in the cavity of a granular cargo storage bin, static formation arches over the transporting body, the fickleness of productivity and excessive energy consumption. The greatest prospects for improve-ment are packaging devices with bladed feeder. This type of packaging devices has the most simple construction, fairly high productivity and low cost. The aim of this study was to improve the efficiency of loading in a container of mixed fodders and their components at the expense of improving the con-struction of the packaging devices. In the article the theoretical studies of character of release of gran-ular cargo during operation developed by the au-thor packaging device with a horizontal rotation axis of bladed rotor were carried out. The analytical ex-pressions describing nature of feed of granular car-go into the transportation organ were received ac-cording to the results of theoretical research. In-equalities, representing a sufficient condition for the absence of stagnant zones in the cavity of the stor-age bin and the absence of the dosing nozzle ob-struction were developed. The technique of select-ing the basic parameters of the intended packaging device was worked out. Experimental verification and production testing of the proposed packaging device confirm the main results of theoretical re-search. Unloading of granular cargo from the bun-ker, during the operation of the packaging device resembles liquid without formation of the arches and stagnant zones. Calculated discrepancies and experimental values of the packaging device per-formance do not exceed 4 %.
lifting and transport machinery, granular cargos, packaging device, blade rotor, is-sue granular cargos
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