The material tank mixing system mainly realizes the automatic control of the entire system through Electronic scales, mainly completing functions such as automatic feeding, discharging, transportation, and material mixing and stirring. The industrial control computer batching distributed control mode is adopted, which is connected by one main unit and multiple slave units through a network. The main unit assigns the control tasks to each slave unit for completion. The distributed control batching picks up the weight through the pressure weighing module, amplifies and filters the picked weight signal, and then enters the A/D converter for analog-to-digital conversion. After that, it is sent to the single-chip microcomputer for signal analysis and processing. The result is output to the industrial control through the RS232C communication serial port. At the same time, make corresponding responses and perform corresponding operations based on the results of the signals.

The feeding system, based on a PC and precise quantitative batching, is a technical device integrating mechanics, electricity, signal processing and batching. The electrical part mainly consists of weighing sensors, weighing instruments, programmable logic controllers (PLC), frequency converters, industrial control computers and printers. During the dynamic weighing process, the weight signal from the weighing module on the quantitative weighing hopper is received. When the weight of the material in the hopper reaches each set value, an I/O quantitative signal is output to the PLC. The PLC collects the quantitative output signals of the weighing display instrument and controls the output frequency of each frequency converter through the PLC, thereby controlling the coarse and fine feeding amounts of the corresponding vibrating Feeders and the opening and closing actions of the material doors of each weighing hopper. The industrial control computer communicates with the weighing instrument via the RS232 interface and displays the weighing data of each scale on the monitoring screen. Users can adjust the formula on the weighing instrument panel or the operation interface of the industrial control computer.

The batching process and control requirements include feeding, material transportation, mixing and discharging. Each raw material warehouse is equipped with a complete feeding system and a discharging system, which do not interfere with each other. Before the batching process is initiated, the staff need to establish the procedures for raw material formulas and material ratios. When the batching starts, the feeding system will feed materials according to the set procedure and the feeding process will be completed. When discharging materials from the raw material reactor, the material flow rate is detected to see if it reaches the set value. When the material reaches the set value, the discharging valve is closed to complete the discharging process. After the process is completed, the materials are conveyed to the corresponding intermediate reactor through a conveyor belt. After the materials are transported, they are mixed and stirred in the intermediate reactor. After the mixing in the intermediate tank is completed, the materials pass through the discharge valve to the conveyor belt and then enter the mixing tank via the conveyor belt. After the steps are completed, the materials reach the mixing tank and start to be mixed and stirred. After the stirring is completed, the unloading system starts, and the material begins to be discharged through the unloading valve.