The weighing and feeding device adjusts the motor speed by changing the frequency of the power supply to make the instantaneous flow rate of the system feeding track the pre-set weighing value. The pneumatic ball valve and related conveying pump are automatically opened by the computer to send the material to the reactor and stir, and the material reacts in the reactor, and the evaporation and reflux of the reaction solution can be controlled.
020-34563445The weighing and feeding system adjusts the motor speed by changing the frequency of the power supply to make the instantaneous flow rate of the system charging, tracks the pre-set weighing value, and automatically opens the pneumatic ball valve and related conveying pump to send the material to the reactor and stir, the material reacts in the reactor, and can control the evaporation and reflux of the reaction solution. The design of automatic feeding system is computer-centered, and the operation process is also computer-centered, and the feeding, temperature control, discharging and other processes are carried out by the sequential instructions issued by the computer. Each step of the operation process is carried out through computer prompts and manual confirmation, and the operation on site is carried out with the computer system. Except for the operation that requires manual cooperation, the other processes are automatically controlled by the computer system.
The weighing and feeding device mainly includes a conveying system and a dual Electronic scale of a distributed control system. The flash kettle is connected to the storage tank through a pipeline, and the storage tank is connected to the auxiliary hopper by an automatic control valve and a soft connection. The storage tank is equipped with a material gas separation device and the auxiliary hopper is equipped with a emptying device. The materials of each flash kettle are pressed into the storage tank one by one through positive pressure pneumatic conveying of nitrogen gas. Then, the material is measured by automatic packing scale one by one, and the conveyor and folding edge sealing machine are bagged and folded edge sealing, so as to realize the centralized and unified discharge of the flash autoclave. At the same time, because the material is not directly discharged in the flash kettle, the electrostatic discharge problem of the flash kettle is fundamentally solved, the process step of replacing the oxygen content of the flash kettle is eliminated, and the nitrogen is greatly saved and the cost is reduced.
