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  • Determination of the dependence of the kinematic parameters of the operation of polymeric sieves with elongated holes in the separation of rice seeds

    The analysis of research on the separation of rice seeds on new types of polymeric sieves showed the absence of regularities that provide the studied processes. There are no dependencies describing the effect of the kinematic parameters of the operation of the sieves on the intensity of the separation processes of rice seeds. We performed a system analysis of the sieves with different types of holes. In the work, mathematical dependences between the amplitude and frequency of oscillations are determined for swinging polymer sieves.

    Keywords: Rice seeds, polymer sieves, separation process, grating mill, kinematic parameters, mathematical dependencies

  • Laboratory studies of a prototype of a gravity-pneumatic grain-seed cleaner

    Based on the results of theoretical and experimental studies at FGBAC FNAC VIM, we conducted a system analysis of the existing gravitational grain cleaning machines and developed a prototype of a gravity-pneumatic seed-seeding machine (VIM-3). His laboratory (preliminary) tests were carried out. The general view, constructive and techno logical scheme of the machine are presented. The prototype of a cleaning machine can purify wheat seeds up to 99.5% by feeding the processed material up to 2.5 t / h with an impurity content of more than 80%, which corresponds to the category of OS and ES of GOST R 52325-2005, as well as to international norms .

    Keywords: System analysis of grain cleaning machines, gravity column, pneumatic assortment channel, specific metal consumption, productivity increase