Design of Fertilizer Selection,Weighing and Mixing System Based on PLC
China is a big agricultural country,its demand for fertilizer is increasing day by day.Scientific fertilization is related to the yield of crops and is the key to achieve high yield and harvest in agriculture.Aiming at the problems of uneven configuration and large ratio error of the existing fertilizer matching device,a fertilizer matching,weighing and mixing system based on programmable logic controller is designed.The system can realize the weighing and matching work of four kinds of fertilizers at the same time.Each fertilizer has an independent raw material warehouse and material storage warehouse,and can automatically feed and weigh independently.Compared with the existing fertilization,weighing and mixing methods,it has the characteristics of small error and high efficiency.Based on the detailed analysis of the software and hardware design of the system,the simulation test of the system is carried out,and the test results show that the system can run well.
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