Fig. 1. Loss-in-weight scale with vibratory mass flow feed unit – the DualTray Feeder.
(Picture: Brabender Technologie KG).
|
Gravimetric vibratory mass flow feeder
The Brabender DualTray Feeder is a bulk ingredient metering feeder featuring vertical mass flow. It is supplied as a loss-in-weight feeder mounted in a free-standing mounting base with load cells. The principle is based on two or more cylindrical feed modules with semicircular feed trays across a part of the modules’ cross sections. The modules are configured one above the other in opposite feed directions with the discharge edges of the trays overlapping. Applying vibration changes the angle of repose of the ingredient and induces flow. Following gravity, the ingredient runs downwards from tray to tray, while the rate is controlled by vibration variation. Switching vibration off immediately stops the ingredient because it reassumes its angle of repose. Hence, the feeder is also perfectly suitable for batching. As the DualTray Feeder has no rotating parts, it is suitable for damageable ingredients but also for ingredients with grains of different sizes, particularly lumpy media, and fibres. The DualTray Feeder allows quick dismantling and cleaning. The feed unit is disconnected from the vibration drive by releasing a fixation handle. The feed modules and the outlet cone are connected by clamping rings and can be removed within minutes. The vibration drive remains in place. Enter 40A or at www.engineerlive.com/epe Brabender Technologie KG is based in Duisburg, Germany. |
