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vol. 12, nr. 1 (2008)
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Geometric features of morphological parts of linseeds after dehulling
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Andrzej Anders
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Department of Agricultural Engineering and Natural Resources, University of Warmia and Mazury ul. M. Oczapowskiego 11, 10-736 Olsztyn |
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vol. 12 (2008), nr. 1,
pp. 7-17
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abstract:
The paper presents effects of collisions between seeds and disk of hulling machine during the removal of seed coats of linseeds. The average linseed moisture was 6%. The average projection area of non dehulled linseeds at hulling disk velocity 1 = 549.5 rad s-1 amounted to 7.44 mm2. The average projection area of non dehulled linseed at hulling disk velocity 7 = 889.7 rad s-1 was 6.89 mm2. The biggest average circularity of linseed was obtained when hulling disk rotated at velocity 1 = 549.5 rad s-1 and amounted to 0.69. The greatest quantity of cotyledons was obtained for hulling disk velocity 4 = 743.1 rad s-1 and it amounted to more than 20%. The share of cotyledons after linseed dehulling at tangential disk velocity of 549.5-683.5 rad s-1 amounted to 9.5-14.5%. The experiment showed that an increase in disk speed above 5 = 794.4 rad s-1 resulted in increasing content of crumbled particles of linseed, amounting to 30%.
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keywords:
dehulling, hulling disk, linseed, geometric features
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original in:
Polish
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