The Powder Vacuum Weighing System is a specialized equipment that combines vacuum environment with precision weighing technology. It is primarily used for high-accuracy, contamination-free weighing and handling of various powdered materials, such as chemical raw materials, pharmaceutical powders, and food additives. The system not only isolates external impurities through a vacuum environment to prevent contamination or deterioration of the powdered materials but also achieves precise measurement through high-accuracy sensors and an intelligent control system. It meets strict requirements for material proportioning and feeding amounts in production, reduces dust dispersion, and enhances operational safety and efficiency. By integrating with equipment such as feeding, mixing, and packaging systems, it enables automated production process coordination. This system is widely applied in fields such as chemicals, new materials, and electronics.

Taking the application of the Powder Vacuum Weighing System for automatic weighing and proportioning of two materials as an example, the working principle of the system is explained as follows: Materials A and B are stored in two separate silos. When the Powder Vacuum Weighing System starts, the vacuum pump is activated. The spiral discharge valve A at the bottom of silo A opens, and the spiral mechanism starts, allowing material A to be sucked into the weighing hopper. Once the weight of material A in the scale reaches a predetermined value, the spiral stops, and discharge valve A closes. The remaining material in the conveying pipeline continues to be drawn into the weighing hopper until fully evacuated, ensuring that the weight of material A in the scale matches the set target precisely.

At this point, the spiral discharge valve B at the bottom of silo B opens, and the spiral mechanism starts, allowing material B to be sucked into the weighing hopper. Once the weight of material B in the scale reaches the specified amount, the spiral stops, and discharge valve B closes. The remaining material in the conveying pipeline continues to be drawn into the weighing hopper until fully evacuated, ensuring that the weight of material B in the scale matches the set target precisely. Finally, the vacuum pump stops.