The intelligent batching system is used for the cascade control of material proportion, temperature and jacketing temperature. According to the process requirements, the reaction materials A, B and C are pre-added into the three storage tanks in a certain proportion. The storage tank liquid level meter adopts the reed float type liquid level meter, and the two normally open reed switches are respectively located in the upper and lower positions of the liquid level meter. The liquid level gauge outputs the On or Off status information.
020-34563445The automatic Dosage system adopts industrial control machine, remote data acquisition module, and follows the industrial 485 protocol composition, from the hardware to ensure the reliability and advanced system.
Control process. After the dosage is started, the Feeder is started according to the pre-stored working formula (the value to be weighed), feeding the material into the hopper scale, at this time, the weighing module will change the weight to the AD module, and then transfer it to the microcomputer. When the set value is reached, the microcomputer sends a command to turn off the feeder and start the discharger to discharge the material to the receiving equipment, thus ending a basic weighing process.
Depending on the site conditions, it is possible to control simultaneously several independent hopper scales and batchers related to the dosage line, each of which can be set up according to the user's requirements.
The system, except for the load cells, is housed in a centralized control room away from the site for centralized operation and control. The system is designed to achieve the desired objectives and shows the following features in terms of functionality:
High dosage accuracy: under the condition of domestic actuator, single weighing accuracy 0.1% system dosage accuracy 0.5%.
High degree of automation: automatic zeroing, automatic tare removal, automatic totalization, automatic printing of shift records and dosage reports in Chinese characters, automatic light alarm. The central control machine runs the program automatically, automatic error detection, and the screen automatically displays the running status of the system in Chinese characters.
Simple operation: the system provides two types of operation: fully automatic and single automatic. Under full-automatic mode, there is no need for human intervention, the microcomputer automatically completes all the dosage process and prints in real time; under single-automatic mode, it is allowed to be operated at the basic control level, and after the dosage command is issued, the system can automatically complete all the weighing process of a weighing point.
Reliable operation: In the past one year, the system has been running continuously day and night without any substantial failure except for one day per month of natural stoppage of production.
Convenient maintenance: the system adopts a modular structure between the internal parts of the system, and it is very convenient to connect, overhaul and maintain the contact parts.
