The weighing reaction kettle control system is a very important process in the production process of fine chemical enterprises, consisting of a Weighing system. The batching machine, under the control of the main control microcomputer system, mixes liquid raw materials in the reaction kettle to form formula raw materials. Mainly responsible for weighing and proportioning the main materials and various ingredients, mixing and blending the ingredients, and then grouping and classifying them for filling. Realized the measurement of symmetrical weight distribution. The Batching system adopts DCS distributed control mode and uses Siemens S7300 PLC to form the data acquisition and control system. It is designed modularly and economically practical. The human-machine interface monitoring software adopts the leading configuration software "Kingview" in the domestic industrial control field, which has the advantages of good openness, easy user maintenance, and secondary development. All process control data and equipment operating status of the system can be centrally managed, recorded in real time, printed and viewed at any time, consisting of computers, cabinets, and peripheral devices (weighing reactors, pneumatic control valves, conveying pumps, etc.).

The ingredient control system uses a computer as the human-machine interface of the entire system, which is set as the main station to complete all system parameter settings, process monitoring, and data recording; Another weighing touch control instrument serves as a slave station, relying on the main station to manage the data setting and process monitoring of quantitative batching. The main station communicates directly with the Siemens S7300 PLC system and automatic touch control instruments. Sealed junction boxes are used on site to prevent dust and moisture, ensuring reliable signal transmission. Using a dedicated industrial process touch control instrument, communication with the central control room is achieved through RS-485 bus. It can be independently controlled and PLC online control can be achieved to detect the position signals of various valves and unloaders. It adopts a weighing sensor and has the characteristics of non-contact, anti-interference, dust resistance, and moisture resistance. The storage bin adopts a heavy hammer level gauge, which can achieve continuous bin detection. The automatic batching system has functions such as human-computer interaction, communication, display and storage, printing, and various related operation screens such as data and graphic display, status monitoring, data input, and information storage. Real time process data monitoring, simulation display of process flow, real-time data recording and viewing, system operator permission setting, process parameter setting, setting of operation process event alarms, and switching between manual and automatic control can be achieved. The on-site control instrument displays real-time flow, load, cumulative value, temperature, etc. The temperature indication is transmitted remotely to the central control room for centralized display through on-site temperature display instruments, pressure indication is transmitted through on-site pressure display instruments, and the current of the motor is transmitted through on-site display instruments. The frequency converter is equipped with an automatic switch for adjustment and communicates with the main control computer.

The weighing reaction kettle feeding device includes a reaction kettle, which includes a reaction kettle body, a reaction kettle cover, a feeding mechanism, a discharging mechanism, and a weighing module. The lower end of the reaction kettle body is uniformly equipped with L A type support frame is provided, with a feeding port at the upper end of the reactor body and a discharging port at the lower end of the reactor body. The reactor cover is hinged and installed on the port of the reactor body, and is locked by a locking component. The port of the reactor body is provided with an installation slot, and the sealing groove strip is installed on the installation slot of the port of the reactor body through the outer installation slot. The inner side of the sealing groove strip is provided with a sealing arc table, and the reactor cover is provided with a sealing groove. The weighing module includes a weighing scale, a weighing module, and a weighing base. The weighing module is set between the weighing scale and the weighing base, and the weighing scale and the weighing control box are connected. The reactor body is connected by L The type support frame is installed on the weighing scale, and the feeding mechanism includes a feeding pump, a feeding pipe, and a suction pipe. The feeding pump is installed on the weighing control box, and the suction pipe is connected to the inlet of the feeding pump. One end of the feeding pipe is connected to the outlet of the feeding pump, and the other end of the feeding pipe is connected to the feeding port at the upper end of the reaction vessel. The discharging mechanism includes a discharging pump, a discharging pipe, and a discharging pipe. The discharging pump is installed on the weighing scale, and one end of the discharging pipe is connected to the discharging port at the lower end of the reaction vessel. The other end of the discharging pipe is connected to the inlet of the discharging pump, and one end of the discharging pipe is connected to the outlet of the discharging pump. The feeding pump and the discharging pump are connected. The material pump is connected to the weighing control box.