Colmachine Technology Co.,Ltd.
Preventing Blockage in High-Speed Powder Filling: 4 Technical Details Must Be Controlled
In high-speed powder filling production, blockage issues often lead to reduced efficiency, material waste, and even affect product quality. To completely solve this problem, precise control of the following 4 core technical details is required.
The first is the design of the filling nozzle structure. A streamlined inner cavity should be adopted to avoid right-angle or concave areas, reducing the space for powder retention. Meanwhile, the nozzle diameter should be adjusted according to the fluidity of the powder. For powders with poor fluidity, the diameter needs to be increased and an anti-adhesive coating added to prevent material adhesion and caking.
The second is the material pretreatment process. Vibrating screens are used to remove agglomerated particles, and a hot air drying system is combined to control the material moisture content. Most powders are prone to moisture absorption and caking when the moisture content exceeds 0.5%, so the humidity must be stabilized below 0.3% to reduce the risk of blockage from the source.
The third is the regulation of the negative pressure auxiliary system. An annular negative pressure channel is installed around the filling nozzle. By precisely controlling the negative pressure value (usually -0.02 to -0.04MPa), flying dust and residual materials are sucked away in real time, preventing dust accumulation from blocking the channel while maintaining a clean filling environment.
The last is the real-time monitoring and automatic blockage-clearing device. Infrared sensors are installed to monitor the filling flow rate, triggering an alarm when the flow rate is abnormal. A high-pressure air blockage-clearing module is equipped to automatically spray air to clean the filling nozzle after every 100 filling cycles, ensuring the continuous and stable operation of the equipment.
By controlling these 4 technical details well, the blockage rate in high-speed powder filling can be reduced to below 0.5%, significantly improving production efficiency and product qualification rate.