经溜槽装入筒仓的玉米减损效果试验  

The Effect of Detract of Corn into the Silo from Chute

作　　者：唐福元[1] 冯家畅 严晓婕[1] 杨文生 程绪铎[1] 温吉华[1] 杨大明[1] 单贺年[1] 

机构地区：[1]南京财经大学食品科学与工程学院/粮食储运国家工程实验室,南京210046 [2]中央储备粮镇江直属库,镇江212006

出　　处：《中国粮油学报》2015年第12期98-101,共4页Journal of the Chinese Cereals and Oils Association

基　　金：江苏省农业科技自主创新资金(CX(13)4021);公益性行业(粮食)科研专项(201313001)

摘　　要：不同含水率(11.64%、13.54%、15.43%、16.43%w.b.)的玉米从仓顶入仓,一种工况是玉米经直溜槽与螺旋溜槽流入筒仓与仓底碰撞;另一种工况是玉米从仓顶自由下落与仓底碰撞。测定2种工况下落碰撞的玉米籽粒破碎率,并使用质构仪测定2种碰撞后的玉米籽粒及未碰撞的玉米籽粒的破坏力和破坏能。结果表明:玉米的含水率越大,经过碰撞后破碎率越小;不同含水率的玉米,经过溜槽下落碰撞的平均破碎率是3.84%,自然下落碰撞的平均破碎率是7.65%;不同含水率的玉米,经过溜槽下落碰撞的玉米籽粒的破坏力平均值是234.96 N,破坏能平均值是49.71 m J,自由下落碰撞的玉米籽粒的破坏力平均值是219.09 N,破坏能平均值是42.43 m J;说明溜槽起到了缓冲碰撞的作用。Corn of different moisture content（ 11. 64%,13. 54%,15. 43%,16. 43 % w. b.） went into a silo starting from the top of the silo. One condition was that corn flow through the straight chute and the spiral chute into the silo,impacting against bottom of the silo. Other condition was that corn start from the top of the silo,free falling and impacting against bottom of the silo. The broken ratios of impact of corn were measured. The corns of without impact and yet impact were compressed by Texture analyzer to determine the destructive force and destructive energy of the corn. The experimental results showed that after the collision broken ratio of corn increase as moisture content of corn decrease,broken ratio of corn flowing through the chute was 3. 84% but that of corn free falling was 7. 65%,broken ratio of corn flowing through the chute significantly less than that of corn free falling; the average value of destructive force of corn flowing through the chute was 234. 96 N,and the average value of destructive energy of corn was 49. 71 m J; the average value of destructive force of corn free falling was 219. 09 N,and the average value of destructive energy of corn was 42. 43 m J. The destructive force and destructive energy of corn flowing through the chute significantly was bigger than that of corn free falling. The experimental results showed that the chute to buffer the collision effect. The effect of detract of the chute was obvious.

关 键 词：玉米 破碎率 螺旋溜槽 减损 

分 类 号：TS210.4[轻工技术与工程—粮食、油脂及植物蛋白工程]