Metering device for powdery pigments

摘要

A metering installation comprises dispensing device for dispensing the powder pigments; weighing device having weighing container (8), conical hopper-shaped pressure container (20), arcuate-shaped outlet connector (22), and injector tube (24); and pneumatic conveying conduit for receiving powder pigments from the weighing device and conveying the powder pigments to the consuming unit (30). Metering installation comprises dispensing device for dispensing the powder pigments; weighing device having weighing container for receiving the powder pigments from the dispensing device, conical hopper-shaped pressure container having base and closure disposed at the base, arcuate-shaped outlet connector extending laterally from the base of the pressure container, and injector tube extending in the outlet connector and having lateral exit openings; and pneumatic conveying conduit for receiving powder pigments from the weighing device and conveying the powder pigments to the consuming unit. The injector tube is adapted for injecting compressed air into the pressure container through the exit openings.