ON PHYSICAL-MECHANICAL PROPERTIES AND METHODS OF HARVESTING AND CLEANING OF ALFALFA SEEDS

The paper presents the study results of physical-and-mechanical properties of alfalfa seeds Tashkent-1 and Donnik Beliy (White Sweet Clover), the morphological composition of the seed mass in the form of a heap, the moisture recovery dynamics of the alfalfa seed plant biomass as the chronology of daily measurements. The paper contains some graphs showing the dynamics of changes in humidity, temperature and height of the layer during the biomass drying. The authors consider technological methods of harvesting and cleaning of alfalfa seeds, as well as modernized technical means for their implementation. They also give account of the existing technologies and distinctive features of the developed technology for alfalfa seed cleaning. The developed technology of alfalfa seed cleaning allows to significantly reduce the applied range of seed-cleaning machines while maintaining the quality of cleaning. This technology provides for the use of a grinder-winder MV-2,5A, a modernized kleveroterka K-0,5M and a dielectric seed cleaner. Calculations have shown that the cleaning costs of 1 hwt of alfalfa seeds and material costs are reduced by more than 1.5 times. Small size, high productivity and operational reliability, as well as mobility of K-0,5M clover-seed huller allow to use it effectively on large and small farms for harvesting of alfalfa seeds. The dielectric plant has shown the principal possibility of cleaning alfalfa seeds from quarantine inclusions using the triboelectric method. The efficiency of seed cleaning for the first fraction has accounted for 53.1%, for the second fraction - 38.5% and for the third one - 11.9%.

семена люцерны, бобы, обработка биомассы, сушка, влагоотдача, вытирание бобов, процесс очистки семян люцерны, клеверотерка, диэлектрическое сортировочное устройство, alfalfa seeds, beans, biomass processing, drying, moisture recovery, wiping of beans, cleaning of alfalfa seeds, clover-seed huller, dielectric sorting device

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