Aumund Fördertechnik, Rheinberg, Germany, has developed the triple-chain bucket elevator AUMUND Type BW-T in response to market demand for greater conveying capacities. A couple of years ago the company introduced double-chain bucket elevators for the same reason. With the latest innovation three bucket strands are affixed to a common drive shaft. Compared with three individual bucket elevators, maintenance and foot print are significantly lower. An essential precondition for the construction of a triple bucket elevator was the availability of a chain with a breaking load of 2450kN that ensures lift heights of up to 90m. Furthermore newly developed flow dividers guarantee simultaneous filling of all three parallel bucket strands. In close cooperation with the Technical University of Magdeburg, Aumund developed a gravimetric chute that fills the buckets from three parallel outlets.

Until now chain bucket elevators have been limited to maximum operating heights of 70m and throughputs of 2500t/h. With the BW-T triple bucket elevator, capacities of 4000t/h can be achieved up to heights of 90m. www.aumund.com

 

 

 

 

 

 

BW-T head with drive shaft and three bucket strands; foot (right) with bulk material flow divider (DEM analysis pictured on the right)