Weighing and mixing machine is set up in the production site with a centralized control console, dynamic weighing and measuring instruments are installed on the console, the load cells installed in the lower part of the six Dosage system support legs are connected to the dynamic measuring instruments with the real-time data uploaded to the control center's ICM through the communication line by the weighing instruments, and the formulas and control commands are downloaded to the instruments and PLC controllers through the communication line by the ICM in the control center; Siemens S series PLC programmable controllers and relays are installed inside the operation table, which are responsible for controlling the start and stop of each automatic valve and pump; the weighing instrument is started under the control of PLC, and outputs different signals (fast feeding, slow feeding, unloading, etc.) to PLC at different measuring stages, which is used to directly control the external equipments; push-buttons and switches are installed on the operation table of the mixer, and the kettle can be manually controlled in the above parts; the manual control of the above parts is carried out at the field operation place; the real-time data is transmitted from the weighing instrument to the control center through the communication line. Manual control of the above parts can be realized by the kettle; there are emergency stop buttons in the field operation and centralized control console, and the two emergency stop buttons of the kettle are connected in series, and the kettle is used for emergency power-off treatment in case of emergencies; there is a stirring motor, controlled by the frequency converter.

Weighing mixer for additives and pre-mixing device, PLC as the main control of the unit, weighing module to collect the weight of the material in the mixer and should have the position (prompted when the material is lost). Limit switch, when the lifting action reaches the position, it should be signaled at the appropriate position. Analog output signal, 4-20mA to 4 valve switches to control the opening, with S type tension to collect the material position and close the valve when the weight reaches the required dosage weight. Has a communication circuit module whose function is to communicate with the console. The communication data is bi-directional and is required to receive information from the console about the specific gravity of the material and the weight distribution of each material mixer.

Conveying system main equipment configuration

1) warehouse pump: warehouse pump by the warehouse body, plug valve, expansion joints, inlet valve, exhaust valve, air intake components and so on.

2)piping: connect the silo pump to the ash storage to realize long-distance transmission. It should have sufficient strength, smoothness and wear and corrosion resistance.

3)Companion gas pipeline:The pressure of the pipeline will drop gradually during the process of ash conveying, and it is necessary to make up the gas in the middle to maintain the normal pressure of ash conveying. So that the material is always in a suspended state.

4)Transmitter:Transmit system pressure, ash hopper material level, bin pump material level, etc., to realize the remote monitoring and adjustment of the ash delivery system.

5)Valve:Switching and isolation of silo pumps, pipelines, ash transmission electric field, ash storage, to realize program control.