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가정용 정미기의 벼 도정 특성에 관한 연구 : 주축회전수, 롤러의 세라믹코팅길이, 이송스크루 피치의 최적 조건에대하여
연광석,조성찬,한충수 충북대학교 농업과학기술연구소 2000 農業科學硏究 Vol.17 No.-
This research was carried out to examine the optimum design conditions of the milling machine by analyzing the milling characteristics of a selected vertical type small-scale milling machine - an experimental milling machine process the rough rice directly to white rice without husking process - by varying structures of the milling machine such as the main spindle speed, ceramic coating length of the roller, and feed screw pitch, which are the major affecting factors of the milling process. The following are the results of this research; 1.The design condition of the highest white rice processing capacity was 970rpm of the main spindle revolution and 19㎜ of the feed screw pitch. 2.The lowest electric energy consumption condition was 900 and 970rpm of the main spindle revolution and 19mm of the feed screw pitch. Range of the rice temperature was increased as the feed screw pitch decreased and the main spindle revolution increased. 4.Broken rice ratio was relatively low with the range of 0.8∼1.3%. 5.Range of the moisture content loss was very low with the range of 0.05∼0.4%. 주요 용어(Key words): 정미기(Milling machine), 주축(Main spindle), 세라믹코팅(Ceramic coating), 이송스크루(Feed screw)