The positive pressure weighing mixer adopts Siemens PLC to control the automatic operation of all its interlocking equipment (such as start and stop, interlocking, position switching, etc.), and the upper computer is programmed by Siemens WINCC configuration software. The entire configuration operation interface is embedded into the overall Weighing system, allowing for operations such as equipment start and stop, operation display, fault query record, and maintenance. The system features a user-friendly interface, simple operation, and reliable operation.

The weighing mixer is suitable for the conveying, metering and batching of powdery and granular materials. A complete set of automated equipment that uses weighing and batching trolleys, screws and belts as material conveying tools, and simultaneously conducts dynamic weighing and batching control. According to the specific production process requirements of users, the weight and flow rate of the materials loaded onto the weighing and batching vehicle can be controlled through the human-machine configuration monitoring system and PLC program, thereby achieving precise measurement and batching. As an integrated automatic control device for dynamic continuous measurement and batching, it can also provide accurate measurement data and control means for production control and management in various industrial sites.

The composition of the weighing mixer

Feeding section: The feeding section is the part that adds materials from the silo to the weighing equipment. According to the different characteristics of the materials, different feeding equipment is selected, such as electromagnetic vibrating Feeders, screw feeders, etc.

Weighing section: The weighing section is composed of Weighing modules, standard connecting parts, junction boxes and hopper scales, which, together with the weighing instrument, weigh the materials and detect errors.

Discharge equipment: Discharge equipment can be weighing equipment (reduction method) or discharge equipment (increment method, zero position method), and is usually composed of vent valves, electromagnetic vibrating feeders, screw feeders, electric (pneumatic) valves, etc.

The control system: The batching control system is composed of weighing instruments, upper-level industrial control computers, programmable controllers and other control devices, etc.

Calibration system: The weighing module should be calibrated regularly to ensure the accuracy of the system's batching.

The main functions of the ingredient control system

Monitoring function: Detect and monitor parameters such as instantaneous flow rate, daily total volume, monthly total volume, and annual cumulative volume during the belt weighing process.

The screen display: Through the computer monitor, the operation parameters of the control parameters during the batching process can be displayed, as well as the real-time batching curves and tables.

Print management: The ingredient report can be printed at any time for storage and query.

Communication function: Bidirectional data and information exchange can be carried out between IPC, PLC and instruments.

Data processing: The system can automatically process the collected signals and output them to the corresponding control quantities.

Control function: According to the corresponding set values before operation, it automatically controls the normal operation of the equipment, including PID regulation.

Alarm function: The host will alarm for abnormal parameters or device status in both screen mode and audio-visual signal mode.

The automatic Batching system is a complex automatic control system solution. It is necessary to comprehensively consider the characteristics of the controlled materials and process requirements, as well as the specific actual situation of the enterprise and on-site production, to design a batching system with precise measurement control and meeting the requirements.