红枣热风干燥装置在线测控系统的设计及试验

摘要

The change of weight of red jujube with moisture evaporation during drying process is an important parameter. Frequent removal of material affects the drying condition and drying quality of red jujube during traditional drying process, aiming at this problem, we designed a type of red jujube drying on-line detection and control system and carried out relative test, this system can collect data such as air temperature,wind speed, weight of materiel and change of water content rate during test process and memorizes these data automatically. Through application of this system, unfavorable factors that affect red jujube drying condition can be avoided, full automatic monitoring of red jujube drying processing cycle can be realized, the running cost and production efficiency will also be reduced and increased as a result.%红枣干燥过程中水分的挥发而发生的重量变化是一个重要的参数，针对传统干燥因频繁取出物料称重影响红枣干燥条件和干燥品质的问题，在红枣热风干燥装置的基础上创新设计了一种红枣干燥在线测控系统，并应用该系统进行了红枣热风干燥试验，在试验中实现了自动采集干燥空气温度、风速、物料重量等数据，以及含水率变化曲线的实时显示、存储等功能，避免了干燥条件调节滞后性的红枣干燥品质差等影响。实现了对红枣干燥加工过程的全自动监测，从而降低操作成本和提高生产效率。