Weighing system of reactor is divided into material storage, batching, metering system and electrical control system, which control system has automatic and manual two modes of operation, simple operation, flexible control, can meet the various needs of production, weighing Batching system has high practicability. Can be adapted to powder, particles, liquid and other material ingredients, stirring control. According to your requirements, you can tailor a set of efficient, stable, fully in line with your company's control requirements of industrial batching control system, batching software system solutions.

The feeding system consists of a computer as the human-machine interface of the whole weighing system. It is set as the main station to complete all system parameter setting, process monitoring and data recording; The other weighing touch control instrument is used as the slave station, and based on the master station, it is responsible for the data setting and process monitoring of the post-quantitative dosing system. The main station directly communicates with Siemens S7300PLC system and automatic touch control instrument of stirring tank. The sealed junction box is used on site, which is dustproof and moisture-proof to ensure reliable signal transmission. The instrument uses a special industrial process touch controller, and the weighing system of the batching tank communicates with the central control room through RS-485 bus, which can be controlled independently or by PLC. The weighing sensor is used to detect the signal of each valve position and discharger position. The weighing module of the mixing tank has the characteristics of no contact, anti-interference, anti-dust and anti-moisture. The heavy weight type material level meter is used to realize continuous warehouse detection.

The liquid material of the automatic batching machine is fed to the reaction kettle after measuring by the weighing module. Some materials also need to carry out temperature and pressure compensation and density calibration and then calculate the formula in the controller to obtain the quality. The ratio of the main materials is controlled by the control system in the control room according to the proportion of the formula to achieve automatic feeding measurement. Solid materials need to be weighed and put in. If the liquid material has a low freezing point, contains impurities or the heat tracing of the material pipeline line is uneven, it will lead to unstable raw material density, and the liquid material containing solid particles or impurities has a large wear rate on the internal components of the flow meter, and the measurement accuracy is unstable, and the mass error obtained after the formula calculation in the controller is larger. In order to ensure the integrity of inspection and process control instruments, they need to be repaired and calibrated on a regular basis.

It is realized by weighing module and weighing controller, which has the function of setting value and ratio, and can be directly used in the process control of production ingredients. According to the standard signal of the input weight module, weight measurement, automatic control, data statistics and upload are realized. According to the operating environment and actual requirements, set the minimum trusted weight. If the ratio of materials is less than the minimum set value, the value obtained by the weighing controller on the display screen is not within the set range. The weighing controller is also equipped with RJ45 standard Ethernet port, which can access the upper control system, and the operator in the control room can monitor the weighing data through the control system, adjust the setting, generate reports, backup or restore the data, which is a complete solution to realize weight measurement and control in one. With the promotion of weight measurement and its successful application in other industries, we proposed a weight measurement control scheme. After many discussions with the process side and comparison of the investment of the two schemes, the weight measurement control scheme was adopted. From parameter acquisition to flow control, a complete weighing module monitoring system is formed.