The feeding system is divided into three parts: under the groove batching, car feeding and tank top distributing. It adopts the automatic feeding of the winding trolley, the tank top is a single tank type bellless tank top, the ore tank under the tank is a single row symmetrical arrangement, and the lifting of the high tank skip truck adopts two sets of frequency conversion drives, which are mutually standby. The distribution Angle and throttle adjustment of the chute are controlled by proportional valve, and the detection surface of the top of the tank is controlled by two variable frequency speed regulating vertical probes. The other equipment on the top of the tank is hydraulically driven. Three incremental encoders are used to detect the position of chute and feed control valve. In the feeding process, the tank material is first thrown into the receiving hopper and then into the tank. In this process, because the high tank cannot communicate with the atmosphere, the normal feeding of the high tank is realized by controlling the sequence switch of the tank top release valve, pressure equalizing valve, upper tight valve, hopper flip plate, lower tight valve and material flow valve, and the high tank distribution is realized by controlling the weighing module.

The feeding system is a hybrid Weighing system based on open fieldbus technology. The dynamic measuring Electronic scale, weighing instrument, together with PLC, I/O equipment through the field bus, seamless composition of metering dosing system, can be connected to the factory LAN and INTERNET. And has multi-level alarm record, password management, complete different raw materials mixed feeding and logistics control, to achieve the integration of management and control. Using twisted pair wire as the connection medium, support 64 slave stations, support up to 360 kinds of devices, such as: remote I/O, sensors, weight controllers, regulators, solenoid valves, frequency converters, touch screens and so on. According to the process requirements of the high tank feeding system, the high tank feeding automatic control system consists of a set of redundant PLC and three remote I/O stations, the CPU head and the high tank top I/O are located in the PLC room of the high tank main control building, the CPU, power module and communication module adopt redundant mode, and the remote I/O of the tank top mainly controls the tank top equipment, the distributor, the probe and other tank top equipment. The remote I/O station is located in the main control building of the mine tank and mainly controls the batching equipment under the tank and the hydraulic station equipment under the tank. The remote I/O station is located in the Roll up hydraulic station, which mainly controls the top hydraulic station of the tank and the hard-connected control with Siemens 300PLC Roll Up. The remote I/O station for mine trough dust removal mainly controls the dust removal fan, bin wall vibrator and scraper and other dust removal system equipment.