| 摘要 |
In a powder and granular material supply device arranged such that a powder and granular material supplied to an inner tube (4) is pushed outward through a gap G by rotation of a rotary blade (8) and discharged from an outlet (18), the outlet (18) is arranged to satisfy a relation L1>=G×(1/tanX° (where, X° is angle of repose of powder and granular material), assuming the shortest distance from the outer edge of the outlet (18) to directly under the inner circumferential edge of the inner tube (4) on the bottom plate (2a) is L1 (mm), and the size of the gap G is G (mm). With such a powder and granular material supply device, a fixed quantity of powder and granular material mixing two kinds or more of powder or granular material can be supplied while suppressing variation in content ratio.
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