不同条件下粮食油料散落性的探讨  

STUDY ON FLOW MOVEMENT OF GRAIN AND OIL IN DIFFERENT CONDITIONS

作　　者：万忠民[1] 吴凡[1] 李红[1] 朱平[1] 许庆田 张荣广 

机构地区：[1]南京财经大学粮食储运国家工程实验室,210046 [2]南京铁心桥国家粮食储备库,210046

出　　处：《粮食储藏》2012年第5期10-15,共6页Grain Storage

基　　金：国家科技支撑课题(2010BAD01B07)

摘　　要：利用传统的木板法和固定漏斗法测定不同水分、杂质大豆、稻谷和油菜籽在不同材料上的自流角、静止角。结果表明:不同含水量的稻谷,随着含水量的增加,其自流角在增大;不同杂质含量的稻谷,随着含杂量的增加,其自流角在增大;不同材质的板材,随着摩擦力的增加,其自流角也在增大。不同含水量的稻谷,随着含水量的增加,其静止角在增大;不同杂质含量的稻谷,随着含杂量的增加,其静止角也在增大。相同水分的大豆、稻谷、油菜籽,稻谷的摩擦力最大,自流角和静止角也最大;大豆、稻谷、油菜籽相比,大豆粒大、饱满、表面光滑,油菜籽次之,因此,在外界条件相同情况下,大豆的散落性最好,油菜籽次之,稻谷最差。This sudject tested the angle of solf-- flowing and angle of repose of soybean, rice, rapeseect witn different water, impurity at different material. It is proved that angle of solf--flowing of the grain with differ- ent moisture increases with moisture increasing; As to grain with different impurities content, its angle of soil--flowing increases with increaseing of impurities; In plates with different materials, angle of soil-- flowing also increases with increasing of friction. As to different moisture content of grain, its angle of re- pose increases with increasing in water content; As to different with grain impurities content, its angle of repose also increases with increasing of impurities, As to soybeans, rice, rapeseed with the friction the same moisture content, angle of solf--flowing and static angle of the rice is largest. Compared to soybeans, rice, rapeseed, Soybean is largest, insize full, smooth surface, rapeseed followed. So the flow movement of soybean is best, followed by rapeseed and rice is worst under the same conditions.

关 键 词：谷物 自流角 静止角 散落性 

分 类 号：S379[农业科学—农产品加工]