The mixing feeding system takes weighing instrument as the core and controls other equipment to complete the batching. The raw materials are driven by the Hank from the bin to the hopper. There are 6 ways, respectively conveying different materials. The speed of the Hank is adjusted by the frequency conversion governor according to the output voltage of the weighing instrument. In actual batching, the formula and batch of batching are set through the weighing instrument keyboard, the weighing instrument automatically selects the required bin, sends instructions to drive the skein motor, and makes the material fall into the hopper. The weighing signal is output through the weighing module on the hopper, and the frequency conversion governor is controlled by the weighing instrument to adjust the skein speed and control the feeding amount, so that the end value reaches sufficient accuracy. At the end of the dosing, the automatic door opens, the material enters the mixing machine, the weighing instrument automatically calculates the mixing time, and releases the finished material when the mixing is finished.

The feeding system uses PLC as the central control area to complete the whole process of weighing and feeding. Before the equipment is equipped, the staff opens the switch, and the PLC central control area sends a signal to start the corresponding solenoid valve to inject the raw material into the reactor. At the same time, the weighing module begins to work. When the amount of raw material in the reaction tank is increased to the equivalent weight of the quantitative setting reference, the central control area receives the action signal of the weighing module, and immediately closes the electromagnetic valve for adding raw materials and stops adding raw materials. When the additives are added to the mixing tank according to the demand, the mixing switch will be automatically started, and the control area will issue an instruction to start the corresponding solenoid valve of the mixer and start the time according to the timer set by the program, and the mixer will evenly mix the raw materials; When the time of the timer reaches the set value (generally 10min), the control area issues an instruction, the solenoid valve is closed, and the stirring is stopped. After the raw materials are mixed evenly, press the feeding switch, the PLC issues an instruction to start the corresponding solenoid valve, and the frequency converter and Electronic scale begin to work. Under the control of the inverter, the pump will feed the raw materials into the batching tank according to the feeding speed required by the process. The flow rate of raw materials detected by the metering module is transmitted to the PLC data storage area, and the PLC compares the data with a given value. When the leading amount and the set target value are equal, the corresponding solenoid valve is closed, the pump and the inverter stop working, and the auxiliary raw materials are all injected into the reactor.