基于单片机的黄花菜杀青烘干自动化设备设计

Design of Automatic Equipment for Steaming and Drying of Day Lily Based on Singlechip

针对黄花菜种植分散地区,设计适合农村家用的黄花菜杀青烘干自动化设备,采用蒸汽蒸制杀青工艺和热风干制与红外干制相结合的脱水工艺。测控系统实现自动杀青烘干功能,实时显示黄花菜温度和相对湿度参数。设备采用内胆、外壳分离设计,防止热量散失。内胆顶部排风扇将湿气通过内外夹层向下排气,冷凝除水,多余热风从底部开孔进入内胆循环利用,提高热量的利用率。设计的黄花菜杀青烘干自动化设备烘干速度是传统热风干制的6.75倍,自然晾晒的21倍。加工的干黄花菜色泽比自然晾晒鲜亮,但黄花菜花尖部和柄端有轻微焦化,红外灯功率不能太大,干制温度不能太高。该黄花菜杀青烘干自动化设备具有较高的生产加工速度和产品品质,对黄花菜加工生产行业发展具有一定推动作用。

An automated equipment for steaming and drying of day lily suitable for rural household use in areas with scattered planting of day lily is developed,steaming process and the dehydration process that combines hot air drying with infrared drying is adopted.The measurement and control system realizes automatic steaming and drying function,displaying real-time temperature and relative humidity parameters of day lily.The equipment adopts a separation design between the inner and outer casings to prevent heat loss.The exhaust fan at the top of the inner liner exhausts moisture downwards through the inner and outer layers,condenses to remove water,and excess hot air enters the inner liner through the holes at the bottom for recycling,improving the utilization rate of heat.The developed automatic equipment for steaming and drying day lily has a drying speed that is 6.75 times faster than traditional hot air drying and 21 times faster than natural drying.The processed dried day lily has a brighter color than natural air drying,but there is slight coking at the tips and handles of the day lily.The infrared lamp power should not be too high,and the drying temperature should not be too high.The developed automatic equipment for steaming and drying day lily has a high production processing speed and product quality,which has a certain promoting effect on the development of the day lily processing and production industry.