水蒸气蒸馏提取过50目筛与过325目筛温莪术挥发油收率比较.docVIP

水蒸气蒸馏提取过50目筛与过325目筛温莪术挥发油收率比较 目录 TOC \o 1-9 \h \z \u 目录 1 正文 1 文1：水蒸气蒸馏提取过50目筛与过325目筛温莪术挥发油收率比较 2 1 材料和仪器 3 2 方法与结果 3 3 讨论 4 文2：动筛工艺系统优化研究 5 一、系统运行中存在的问题 5 1、动筛跳汰机块煤出料溜槽带水严重 5 2、动筛跳汰机排水时间长，煤泥水处理系统不闭路循环 6 3、矸石皮带带速快，不利于拣选工作 6 4、动筛排矸轮卡住不易处理 6 二、系统改造优化方案 7 1、将大块煤溜槽改制成脱水溜槽 7 2、优化动筛煤泥水处理系统，缩短排水时间，实现洗水闭路循环 7 3、降低矸石皮带运行速度，保证拣选质量 7 4、对排矸轮进行改造，消除卡矸故障 8 三、效益 8 2、实现了动筛洗水闭路循环，净化了洗水，增加了中煤泥的回收 8 3、消除了堵旋流器事故，提高了精煤产品稳定率，降低了电耗 8 参考文摘引言： 9 原创性声明（模板） 10 文章致谢（模板） 10 正文 水蒸气蒸馏提取过50目筛与过325目筛温莪术挥发油收率比较 文1：水蒸气蒸馏提取过50目筛与过325目筛温莪术挥发油收率比较 The Essential Oil Yields Comparison of Curcuma aromatica salisb. by Steam Distillation between 50 Meshes and 325 Meshes Abstract：ObjectiveIn this paper the best extraction method by water vapour from Curcuma wenyujin . Chen et powder and micronanometer powder were discussed and compared. MethodsCurcuma wenyujin . Chen et was grinded into 50 mesh powder and 325 mesh micronanometer powder, then extracted by distillation method of water vapour. Conditio for the extraction percentage of volatile fluid were studied by orthogonal experimental design of L18(21×37). Influence of degree of grinding, process time of distillation, quality of water and soak period were investigated. ResultsFrom the intuitionistic analyses,it showed the influences as follows: process time of distillation degree of grinding quality of water soak period. Analysis of variance show that in the process by distillation method of water vapour, process time of distillation, degree of grinding and quality of water influence remarkably, soak period influence incopicious. The extraction percentage of volatile fluid was crowning at this condition: 50 mesh Curcuma wenyujin . Chen et powder to add water for 8 times, distill 12 h. ConclusionIn the process by distillation method of water vapour, it is unnecessary to grinde Curcuma wenyujin . Chen et to micronanometer powder. The soak period was taken no account of as influencing incop