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Dry De-Ashers in cooperation with Clyde Bergemannn Power Group.
The development of ash handling plants was widened to include dry de-ashing systems in the1990s.
RUD has contributed to the development of "dry de-ashing" systems. It has developed an Apron Conveyor system which, in comparison to other systems, remains sealed not only on the straight but also on the curved conveyor sections. This system was developed on the basis of the tried and tested round steel chain and is designed specifically for it. In contrast to wet de-ashing, the ashes are not scraped along the floor of the trough but carried along by the plates (A)attached to the conveyor chains until they are discharged. The plates run on wheels or, if required, on rails (B). The conveyor chain is protected by baffle plates (C) projecting over the side walls of the plates. The conveyor chain is driven via externally toothed pocket wheels. These are more tolerant of longitudinal chain wear than internally toothed wheels.
Conveying capacities of between 5 and 70 tonnes per hour (t/h) are achieved, depending on the angle of the inclined part of the conveyor. Through puts of 100 t/h have already been achieved. The conveyor is 2000mm wide.
Conventional conveying speeds lie between 0.01 and 0.07 m/s. They seldom exceed 0.1m/s, and are achieved with regulated electromechanical or hydraulic drives.
form the heart ofthe Apron Conveyor: the conveyor chain, the chain connectors, the drivewheels, guide wheels and the drag chain together with its attachments.
You can get our technical datasheets on request!