SED-7ZSJ-T — Vacuum Powder Feeder
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SED-7ZSJ-T is a 7.5 kW two-stage whirlpool vacuum powder feeder for conveying powders, granules, and similar materials from a feed source into mixers, reactors, hoppers, tablet presses, packing machines, vibrating screen
Funcionamiento
Vacuum/negative-pressure pneumatic conveying: a 7.5 kW two-stage whirlpool (vortex) pump pulls air from the SS304 vacuum hopper through pleated-cloth filters, creating negative pressure. With the pneumatic reversing valve set to 'feed', the unloading door is closed and material is sucked from the source through a stainless suction nozzle and PVC steel-wire hose (8 m) into the hopper. Filters separate material and air. After the feeding cycle the reversing valve switches; the cylinder opens the unloading door; material drops into the receiving device. A compressed-air back-blow then cleans the filter cake. Material level switch in the receiving hopper triggers automatic start/stop; pump runs continuously during cycles to protect the motor.
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Limpieza y mantenimiento
Clean regularly especially when changing batch or material. Open hopper clip and cover, remove filter, blow with compressed air then rinse with warm water (max 80°C). Filter should be re-blown until transparent or dried in oven below 50°C. Clean hopper with clean water. Sealing rings (silicone) can be ultrasonically cleaned and dried below 120°C; replace when hard or darkened. Avoid hard brushes on filter rods — they roughen the surface and reduce filtration accuracy.