CD–100型滚筒式烘干机油菜籽干燥试验

Research on drying of rapeseed with cylinder dryer type CD–100

以CD–100型滚筒式烘干机为研究对象,对影响油菜籽干燥特性的温度和风速进行对比试验,绘制在温度分别为60、70和80℃,风速分别为3.03、3.80、4.30、4.73和5.13 m/s时,油菜籽含水率随干燥时间变化的曲线。结果表明:随着温度的升高,油菜籽干燥速率加快,最佳干燥温度为80℃;随着风速的加大,油菜籽干燥速率加快,当干燥温度为80℃、风速为4.73 m/s时,所需干燥时间为2 h,干燥速率最大,为4.87%/h。

The influences of temperature and wind speed on the drying of rapeseed using cylinder drier type CD-100 were compared and the curves describing the changes of water contents under temperatures of 60℃, 70℃ and 80℃ and under wind speeds of 3.03 m/s, 3.80 m/s, 4.30 m/s, 4.73 m/s and 5.13 m/s were made. The result demonstrated that the drying rate of rapeseed increased with the increase of the temperature and the best drying temperature was 80℃, The drying rate also increased with increasing wind speed. The drying condition with drying temperature of 80℃ and wind speed of 4.73 m/s yielded the fastest the drying rate for rapeseed, which was 4.87%/h.