The automatic dosage system consists of an industrial computer, PLC programmable controller, powder dosage, liquid dosage, micro dosage and control system. This control system is a kind of automatic weighing system with vacuum feeding, dosing screw quantitative dosing, weighing hopper automatic weighing and dosing, and cumulative weighing at the same time. It is suitable for precise measurement of materials and automatic dosage in the production process.

The automatic dosage system consists of weighing module junction box, weighing instrument, wiring cabinet, PLC control cabinet, and the main hardware consists of two computers, high-performance microcomputer controllers, human-machine interface, high-speed and high-precision weighing units and internationally famous low-voltage electrical appliances, combined with self-developed professional control software to realize the dosage system for chemical liquid production; at the beginning of each dosage cycle, the difference between the previously set dosage quantity and actual dosage quantity will be taken as the compensation value for the set dosage quantity of this cycle in order to eliminate the accumulated error of each scale dosage quantity. At the beginning of each dosage cycle, the difference between the previously set dosage amount and the actual dosage amount is taken as the compensation value for the set dosage amount of the current cycle, so as to eliminate the accumulated error of the dosage amount of each scale.

The dosing system applies the configuration software to complete the data acquisition and process control support a variety of communication protocols to provide users with a variety of equipment support, colorful dynamic screen and the powerful functions of the system, so that you can easily operate with a strong scalability, easier to integrate with other systems, and more effective protection of the user's investment. The redundant station utilizes two redundant CPUs to improve higher availability and safety, and the switch automatically switches from the running system to another in case of failure.

Automatic batching system is a complete set of automation equipment to realize dynamic weighing and batching control through electrical control management and visualization man-machine software configuration. The electrical control part of the system adopts Siemens PLC, which is programmed and controlled according to the production requirements; the software adopts man-machine configuration, which is used to control the weight and flow of the materials loaded into the weighing hopper through the monitoring system and the PLC program according to the technological requirements so as to realize accurate measurement and batching. The software adopts man-machine configuration. With strong stability and high cost performance, the system can provide accurate measurement data and control means for production control and management of various industrial sites.

The automatic batching system is connected through the communication bus to form a network, decentralized control, centralized operation and centralized management, which is easy to achieve centralized command, scheduling and management of the whole plant, automatic detection and control of the entire production process, and automatic control of the start and stop of some electrical equipment. Each site workstation completes the collection and control of various analog signals (pressure, temperature, flow, valve opening, etc.) and various switching signals (motor, position and material level, etc.), and completes signal processing, sequence control, control algorithm, PID adjustment and fault diagnosis in the site station.

The automatic mixing equipment adopts decentralized control and centralized management control mode, and the three-level structure realizes the two-way coordination of process demand and energy saving of the batching system. Decentralized dust point local realization of vibrating screen, hopper and other stations of the branch adsorption point automatically open and close, effectively reducing the dosage of non-dusting ventilation requirements; the central controller to achieve the dust point of the centralized monitoring of the working conditions, according to the operation of the workplace to calculate the real-time demand for the kettle dust dosage of the air volume. Thus the frequency control value of frequency conversion operation is given, and the frequency adjustment instruction of 4~20mA is transmitted to the frequency converter of dust removal fan to realize the continuous variable condition adjustment of dust removal air volume.

.Automatic mixing system through the programmable controller touch screen automatic control program, can automatically mix a variety of raw materials in different order and temperature, to achieve the ideal product manufacturing automatic mixing equipment. The main tasks are initial data input, material tracking, process parameter setting calculation, data recording and report, human-machine dialogue processing, data communication, analog resin model, historical data processing, application system startup, event monitoring, etc. The process control automation level computer system reserves the communication interface with the continuous casting and computer system.

The control system of the feeding system consists mainly of a PLC, a touch screen, actuators and detection elements. The computer downloads the program and monitors the operation of the equipment through the Ethernet PLC on-line. It communicates with PLC through Modbus 485 communication protocol to display the running status of the equipment and set the running parameters for starting and stopping the equipment. The actuator is responsible for executing the instructions from PLC and performing the corresponding actions. The detection element sends the status and parameters of the equipment to the PLC.

Metering feeding equipment collection storage body, conveying body, weighing dosing body, dust removal body, material mix and other equipment, dosing according to the characteristics of the industry, reasonable selection of "zero method" or "reduction method" weighing methods, according to the actual need to adjust the spiral speed, so as to achieve normal dosing. After measuring by electronic balance, it enters the feed tank of spiral pneumatic conveying, and pushes forward into the mixing tank through the spiral mechanism.