Influence of design-technological parameters of grater-scarification unit on quality of scarification
Influence of rotation frequency of barrel, gap between riff of grater surface of barrel and scarifica-tor surface, input of initial material into scarificator, granularity of scarificator on germinating energy, germinating ability, degree of scarification and increasing of amount of germinating seeds was studied at one-factorial experiments. Mutual influence of most important factors (granularity, rotation frequency of barrel, and input of initial material) on parameters of quality of scarification was investigated by means of multi-factorial experiments. Region of rational means of parameters is determined at which 95% degree of scarification is obtained with simultaneously increasing of amount of germinated seeds by 34-36% and lack of crushing: high of riffs of grater surface of barrel h = 2.9 мм; gaps between riff of grater surface of barrel and scarificator surface d вх = 6 mm, d раб = 4 mm, d с вых = 3…4 mm; granularity of scarificator surface Z = 50 micrometer; rotation frequency of barrel =1400…1500 min -1; input of initial material q с = 0.10…0.15 t/hour.