STUDY ON THE DEVELOPMENT OF PROCESSING SYSTEM FOR HIGH MOISTURE CONTENT OF RICE

对叶轮式脱壳机在稻田高水分稻田直接脱壳中的应用进行了尝试。结果表明，叶轮式脱壳机可以成功地安装并应用于实际脱壳作业，特别是在高水分稻谷脱壳作业中。这项功能在缩短收获后阶段的收获和加工作业方面具有很高的可能性和潜力。为了获得满意的脱壳效果，必须认真考虑糙米的品质，但有些糙米可以用来饲喂动物。因此，将大米用于动物食品或加工产品时，这种脱壳系统可以立即应用，因为质量没有那么仔细地考虑。大米作为人类的主要食物，除了价格之外，还要求高质量。在高水分稻谷的脱壳中，为了更好地保持…的脱壳，必须提高叶轮的圆周速度脱壳率越高，谷物(糙米)在脱壳过程中受到的冲击力增加，对谷物(糙米)的损伤自然增加。本研究比较了两种脱壳方法，并利用图像处理技术观察了脱壳对谷物的损伤特征。结果表明，叶轮式脱壳机的破损总粒数大于常规胶辊式脱壳机的破损总粒数，但每一次破损的破损面积明显小于普通胶辊脱壳机。与胶辊式脱壳机相比，每一次破损面积几乎相当于1/3~1/4。叶轮式和胶辊式脱壳的破损面积分别约为单粒二维投影面积的10%和40%。研究了两种脱壳方法的脱壳效果和对储藏的损伤，结果表明，两种脱壳方法的脱壳效果和对储藏的损伤程度没有显著差异。较少

THE TRIAL FOR APPLYING THE IMPELLER TYPE HUSKER TO THE DIRECT HUSKING OF THE HIGH MOISTURE CONTENT OF RICE STANDING IN THE PADDY FIELD WAS ATTEMPTED. IT WAS FOUND THE IMPELLER TYPE HUSKER COULD BE SUCCESSFULLY MOUNTED AND APPLIED FOR ACTUAL HUSKING OPERATION ESPECIALLY FOR HIGH MOISTURE CONTENT OF RICE. THIS FUNCTION HAS THE HIGH POSSIBILITY AND POTENTIALITY IN SHORTENING THE HARVESTING AND PROCESSING OPERATION IN POST-HARVESTING STAGE. FOR SATISFACTORY HUSKING, THE QUALITY OF BROWN RICE MUST BE CONSIDERED SERIOUSLY, HOWEVER SOME OF THEM CAN BE USED FOR FEEDING TO ANIMALS. THEREFORE, THE RICE TO BE USED FOR ANIMAL FOOD OR PROCEED PRODUCTS, THIS HUSKING SYSTEM CAN BE IMMEDIATELY APPLIED, BECAUSE THE QUALITY IS NOT CONSIDERED SO CAREFULLY. FOR THE RICE AS THE MAIN FOOD FOR HUMAN BEING, THE HIGH QUALITY IS REQUESTED IN ADDITION TO THE PRICE. IN HUSKING OF THE HIGH MOISTURE CONTENT OF RICE, THE PERIPHERAL SPEED OF THE IMPELLER SHOULD BE NECESSARILY INCREASED FOR BETTER HUSKING MAINTAINING … More THE HIGH PERCENTAGE OF HUSKING, HOWEVER NATURALLY THE INJURY AND DAMAGE ONTO THE GRAIN(BROWN RICE) IS INCREASED BECAUSE OF THE INCREASE OF IMPACT FORCE ACTING ON THE GRAIN IN THE PROCESS OF HUSKING.IN THIS RESEARCH PROJECT TWO TYPES OF HUSKING METHOD WERE COMPARED AND THE CHARACTERISTICS OF THE DAMAGE ONTO THE GRAIN WAS OBSERVED USING THE IMAGE PROCESSING TECHNIQUE. AS THE RESULT OF THAT, FOR IMPELLER TYPE HUSKER THE TOTAL NUMBER OF THE GRAIN DAMAGED WAS MORE THAN THE ONE HUSKED BY THE CONVENTIONAL RUBBER ROLL TYPE HUSKER, HOWEVER THE DAMAGED AREA PER ONE DAMAGE WAS MORE LESS THAN THE LATTER ONE. THE DAMAGED AREA PER ONE DAMAGE WAS ALMOST EQUAL TO ONE THIRD TO ONE FOURTH COMPARED WITH RUBBER ROLL TYPE HUSKER. THE DAMAGED AREA FOR BOTH IMPELLER TYPE AND RUBBER ROLL TYPE ONE WERE ALMOST 10 % AND 40 % RESPECTIVELY OF THE TWO DIMENSIONALLY PROJECTED AREA OF ONE GRAIN.THE EFFECT OF HUSKING AND THE DAMAGE ON THE STORAGE WERE INVESTIGATED FOR TWO TYPES OF HUSKING METHODS, NO SIGNIFICANT DIFFERENCE WAS FOUND BETWEEN THEM. Less