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

应用叶轮式脱粒机对田间高水分水稻直接脱粒进行了试验。发现叶轮式脱粒机可以成功地安装并应用于实际脱粒作业，特别是高水分稻谷的脱粒作业。该功能在缩短收获和收获后加工阶段的操作方面具有很高的可能性和潜力。糙米的品质是保证糙米质量的重要因素，但也有部分糙米可用于动物饲料。因此，用于动物食品或加工产品的大米，可以立即应用这种脱壳系统，因为质量不是那么仔细考虑的。作为人类主要食物的大米，除了价格外，还要求高品质。在高水分稻谷的脱粒中，应适当提高叶轮的周向速度，以利于脱粒的维护 关于我们 本研究比较了两种不同的脱壳方法，并利用图像处理技术观察了稻谷在脱壳过程中的损伤特征。结果表明，叶轮式脱粒机的脱粒总粒数大于传统胶辊式脱粒机的脱粒粒数，但每一粒脱粒的脱粒面积小于传统胶辊式脱粒机。每一次损伤的损伤面积几乎相当于橡胶辊式破碎机的三分之一到四分之一。叶轮式和胶辊式两种脱粒方法的脱粒损伤面积分别约为一粒谷物二维投影面积的10%和40%，两种脱粒方法的脱粒效果和脱粒损伤无显著差异。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