The weighing and feeding system can be controlled by instrument and touch screen, and is fed by several silos, which is used for the professional production of weighing and batching equipment for continuous conveying, measuring, and automatic batching of powdery and bulk materials (such as raw materials for refractory materials, cement, fly ash, and coal powder, etc.). The weighing and feeding system consists of hopper scale, feeding screw conveyor, discharging screw, computerized Weighing system, and small (micro) feeding device. Weighing and metering is done by several raw material conveying screws to convey the raw materials into the weighing scale according to the set sequence, each raw material is conveyed in sequence according to the weight set in the automatic control system, after the weight of A material is reached, the weighing instrument will directly control the starting and stopping of the A material screw, and then start the conveying screw of the B material, and after the weight of the B material is reached, the B material screw will be shut down, and then the C material screw will start, and so on in sequence, which can ensure the accuracy of weighing and metering in a large extent. After the weight of raw material has been measured, then the screw will start the C material screw. After the raw materials are weighted and measured, the discharging screw of the weighing scale conveys all the raw materials to the bucket elevator, and at the same time, the bucket elevator is started to send the raw materials to the mixing bin located above the main machine, and the weighting of the raw materials is completed.

Hopper scales for the overall mobility hopper, the overall type hopper to ensure that when the discharge port is opened, every particle of material in the hopper began to move, according to the first to enter the storage bin of material first unloaded out of the flow of the order of flow, hopper no dead ends, unloading uniformity, unloading of the material heap density is stable, eliminating the uneven distribution of materials, breaks in the flow, pulsation and spraying, and so on. Any one horizontal cross-section of the hopper pressure is relatively uniform, the material separation can be kept to a minimum, for the nature of the predicted flow of bulk solid material flow flow pattern, and for CaCO3 material adhesion, bridging performance is relatively strong, auxiliary scales hopper outlet with a flow-assisting air cushion plate (for a closed cavity covered with a microporous pore plate.). Compressed air through, so that the powder is suspended in the air cushion, always in the fluidized state, can effectively prevent the powdery material arching), the use of rubber patches or Teflon coatings.

Automatically detects the operation of all motors in the production process, detects all types of switches and valves in place in the production process, detects the weight information of all weighing and packaging machines and ingredients in the production process, detects the display, records and accumulates the production volume. Valve switching in place, detection of the production process of each weighing packaging machine, dosage weight information, detection of the production process of display, record, cumulative production.

Control functions (the entire system to achieve three-level control), PLC automatic control and PC screen keyboard and mouse control, once the computer malfunction, must ensure that the PLC to maintain production for a period of time, until the computer troubleshooting.