Abstract: A feeder for bulk solids has a rotatable bin with an open bottom and an open top and is tilted so that one side of the bin is substantially vertical. A rotating auger is located within the bin having a vertically oriented exposed helical fin. Longitudinal ribs are secured on an inner surface of the bin and spaced radially. Material is loaded into the open top of the rotating bin, tumbling the material toward the bottom of the bin causing the material to constantly contact the rotating auger. The auger then feeds the material through the open bottom of the bin. Ribs engage the material in the bin enhancing tumbling and feeding.

Abstract: A feeder for bulk solids has a rotatable bin with an open bottom and an open top and is tilted so that one side of the bin is substantially vertical. A rotating auger is located within the bin having a vertically oriented exposed helical fin. Longitudinal ribs are secured on the inner surface of the bin and spaced radially. Material is loaded into the open top of the rotating bin, tumbling the material towards the bottom of the bin causing the material to constantly contact the rotating auger. The auger then feeds the material through the open bottom of the bin. Ribs engage the material in the bin enhancing tumbling and feeding.