| 摘要 |
A compound screw feeder (16) for uniform volumetric flow rates of particulate solids, suitable for low, nonpulsating feed rates, comprises coaxial inner (48) and outer screw flights (52). The flights both extend throughout the feeder section (20) and produce a net discharge flow rate (92) dependent on their respective feed directions (82) and rates of feed. Various forms of the feeder (16) may be employed in a loss of weight screw feeder system (10). |
