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Type of publication: Straipsnis mokslo-populiarinimo leidinyje / Article in popular science editions (S6)
Field of Science: Mechanikos inžinerija / Mechanical Engineering (T009)
Author(s): Mickevičius, Mindaugas;Vaiciukevičius, Edvardas
Title: Rapsų nuokulų valymo tyrimai kombaino valytuve
Is part of: Agroinžinerija ir energetika: ASU Žemės ūkio inžinerijos fakulteto mokslo populiarinimo ir gamybos žurnalas. , 2013, Nr. 18
Extent: p. 35-41
Date: 2013
Abstract: While harvesting the rapeseeds, the seed harvest losses often exceed the allowable ones. The size of losses is determined by structure of combine harvester, the sort of rapeseeds, meteorological conditions, qualification of operator of combine harvester, etc. The losses of seed clea-are about 5 - 10 %. The article presents the research on cleaning the rapeseed threshing material, in order to determine the rational parameters of cleaning devices. The influence of upper sieve of scale shape on losses of cleaning the seeds was analyzed during research by changing the load of upper sieve, iir flow rate in cascade and the angle of sieve position. The research determined that 2 kg-(s m)"1 of rapeseed threshing material should be fed to the ling device of combine harvester, when the air flow rate in cascade is 5 m s 1, the angle of screen position is 1,8°. In this case, about 98% of seeds go through the sieves, while the quantity rf impurities in seeds does not exceed 2%. The differences of cleaning parameters of examined upper sieves of scale shape, with scales m afferent shapes, are not essential, therefore, more research is needed to identify the advantages and disadvantages of shape of scales by changing the air flow rate in sections at the length of upper sieve
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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