Pulse Measuring and feeding system adopts advanced control algorithm and new generation of single crystal chip microprocessor, which is more powerful, with faster operation speed and stronger anti-interference ability, automatic calibration compensation and vibration prevention function to ensure the best dosing accuracy. It can be automatically calibrated every time it is turned on to ensure accurate precision. Users can directly access the PLC system, terminal control system to realize multi-range control and automation control. The system digitizes the weak weight signal output from the weighing module to obtain high precision weighing data. Rich digital filtering technology is set up in the software, as well as emergency software to prevent interference with the system out of control.
020-34563445The pulse metering feeding system is a combination of Weighing modules, weighing instruments and control systems. A system that achieves the weighing and measurement of the reaction tank and then controls it. The weighing and control system mainly consists of multiple weighing modules, multiple junction boxes (including amplifiers), weighing instruments, and output multi-range control signals. This system can be applied to various box weighing, liquid filling, solid weighing, dry powder mixers, mortar batching mixers, liquid batching tanks, etc. Users can directly connect to the PLC system and terminal control system to achieve multi-process control and automatic control.
The design of the feeding system adopts an HMI+PLC system, integrating multiple sensors and actuators into a powerful weighing and Batching system, which can be applied to various chemical operation units that require precise control and quantitative dosing. All the equipment of the weighing device is centrally installed on a steel base. The complete set of equipment includes a weighing and Measurement system, a heating and insulation system, a liquid Feeder and an automatic control system. The metering system consists of a weighing module, a weighing platform, a level regulator and accessories. It is composed of a dosing pump, safety valve, back pressure valve, pulse damper, pressure gauge, ball valve, pipeline mixer, pipelines and accessories.
The automatic control system is composed of industrial PH meters, contactors and control circuits, and is responsible for operating various electrical equipment. The control mode is fully automatic control of PLC+HMI. The signal collected by the sensor is transmitted to the PLC by the instrument transmitter. After the PLC program calculation, the dosing system is automatically controlled and the relevant parameters are displayed on the HMI interface.
The upper barrel storage tank is equipped with high and low liquid level switches, which respectively detect and control the high and low liquid levels of the storage tank. When the high liquid level is reached, the liquid inlet electric ball valve 1 closes the liquid inlet action. When the low liquid level is reached, issue a warning and stop heating. The lower storage tank adopts a low-level switch and a weighing module to automatically control the liquid level. When the weighing module detects the lower limit of the set value, it automatically opens the electric ball valve in the middle to discharge the preheated medium from the upper tank to the lower tank. When the weighing module detects the upper limit of the set value, close the electric ball valve. In addition, a low-level float switch is installed in the lower bucket. When the liquid in the lower bucket is completely conveyed to the low level, the system will turn off the heating, stop the metering pump and issue an alarm.
