Marynina L. Justification of machine parameters to form artificial cover on vegetable seeds

The thesis is devoted to the issues of development, theoretical and experimental research of parameters and modes of the machine to form an artificial cover on the surface of the seed of small-seeded vegetables. The main ways of pre-sowing treatment of seeds to form artificial covers and machines for the implementation of the technological operation are analyzed. It is established that the actual direction of improving the efficiency of pelletizer is improving of its working drum. An estimated mathematical model of encapsulated seeds traffic on the inner wall of the drum with an extra working surface is developed. Based on the results of researches a pilot model of pelletizer is developed and constructed, experimental tests of which confirmed the efficiency of the process of forming clay cover on the surface of small seeds of vegetables. Based on the results of experiments dependencies of clay fraction capsules yield on controlled parameters: centrifugal criterion Froude, the angle of inclination of the drum and installation of pan angle to the horizon are determined.