名优茶鲜叶智能养护机的设计

Design of Intelligent Maintenance Machine for Famous Fresh Tea Leaves

根据名优茶鲜叶养护过程,设计一种智能养护机.系统在单片机的控制下可实现智能化,风机和旋转筛架转速可连续调节,键盘可进行多段时间和温度的设定,并提供友好的人机界面.测试结果表明:原料为含水率89.3%的龙井茶鲜叶,养护后鲜叶含水率为70.0%;在单位面积摊叶量为(1.5±0.3)kg.m-2时,其生产率为12.5kg.h-1,耗电率为0.093 3kW.h.kg-1,单位有效摊叶面积生产率为1.25kg.(m2.h)-1.

According to the maintaining process of famous fresh tea leaves,an intelligent maintenance machine is designed.The system becomes intelligent under the control of microcontroller unit（MCU）.The speed of fan and rotating screen frame can be adjusted continuously.Multi-stage time and temperature of the system can be set by keyboard.At the same time,a friendly HMI is provided.The test results show as follows： for the raw materials of Longjing fresh tea leaves with 89.3% moisture content,the moisture content of them becomes 70.0% after maintaining.When the amount of spread leaves per unit area is（1.5±0.3） kg·m-2,the productivity of this machine is 12.5 kg·h-1,its power consumption rate is 0.093 3 kW·h·kg-1,and the productivity of effective spread leaves per unit area is 1.25 kg·（m2·h）-1.