基于PLC的中药丸微波干燥控制系统设计

Automatic Control System of Traditional Chinese Medicine Pill Microwave Drying based on PLC

微波作为一种高效清洁的能源和信息载体被广泛应用于生产、生活的各个领域,微波干燥就是微波的主要应用领域之一.本文基于隧道式干燥机构,利用西门子公司的PLC S7-200设计了微波干燥机的自动控制系统,主要包括:磁控管电源的自动控制、灯丝电流的自动控制、整机的自动控制等.

Microwave as a clean and efficient energy and information carrier is widely used in many areas of production and daily life.Microwave drying is one of the main microwave application areas.Based on the tunnel-type drying body and taking advantage of Siemens PLC S7-200,an automatic control system of microwave drying system is designed in this paper.The system includes： automatic control of the magnetron power supply,automatic control of filament current,automatic control of the whole machine etc.