带式干燥机的设计
本次设计的任务是带式干燥机,干燥机的处理量为2000kg/h,物料初始含水率为20%,初始温度为15℃,干燥到含水率0.4%的带式干燥机,设计包括带式干燥机,确定工艺流程,干燥气体,工艺计算,干燥器的结构计算和设计,配套设备的选择。 在本设计中,干燥器是适合大规模生产的连续式干燥设备,干燥带通风好,适合含水较高的蔬菜,中药饮片和其他类型的水分含量高,干燥热敏性的物料尤为合适。
设计的干燥机具有蒸发强度高,干燥速度快和产品质量好等特点。网带具有透气性能好,停留时间可以调节,不会出现剧烈运动,不破碎,在良好的干燥条件下,提高干燥强度,循环风机用于循环结构,热风均匀,偏干的现象并不存在。分为三层,有效地节省了面积,提高了空间利用率。
关键词:干燥器;中草药干燥; 网带; 循环风机; 三层
The Belt Dryer Design
The task is to design a belt dryer for drying herbs, dry material handling capacity of 2000 kg / h, an initial concentration of 20%, the initial temperature of 15 ° C and dried to 0.4%, the design includes belt dryer to determine the process flow, dry gas, process calculation, dryer structural calculation and design, ancillary equipment selection. In this design, the belt dryer with mass production of continuous drying equipment for drying ventilation sheet, strip and granular materials is better. Dehydrated vegetables, Chinese Herbal Medicine and other types of high moisture content, dry heat sensitive materials are particularly appropriate.
The series dryer has high drying rate, high evaporation strength, and good product quality. Network with breathable performance, the residence time can be adjusted, material non-strenuous exercise, not broken,more dry area, more dry strength, loop structure of the circulating fan, hot air evenly, dry phenomenon does not exist. Divided into three layers is effectively saving the area, to improve the space utilization.
Key words: Dryer; Herbal drying; Mesh belt; Circulating fan; three layers
1.4研究和设计带式干燥机过程中可能遇到的问题以及解决的方法和措施
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