Compressed air feeder for friable materials has controlled valve operated by central switching and control device to open and close through flow of compressed air

摘要

The feeder has at least two feed lines (1, 2) each with a tubular suction lance (7, 8) to suck out the friable materials (6). A controlled valve (11, 12) in each line is operated by a central switching and control device (14) to open and close the through flow of compressed air to set the ratio of amounts of friable materials being forwarded.