| 摘要 |
<p>A batch feed dehuller for seed testing purposes is provided and includes an upright cylindrical chamber merging downwardly into the upper major diameter end of an inverted frusto-conical chamber which in turn merges downwardly into a downwardly opening generally cylindrical passage of smaller diameter than the cylindrical chamber. An annular top wall closes the outer peripheral portion of the upper end of the cylindrical chamber and includes an inner periphery downwardly from which a tubular vortex finder extends to a level spaced above the frusto-conical chamber. The cylindrical passage includes a small diameter generally radially inwardly opening compressed air inlet intermediate the upper and lower ends thereof and a lateral airflow outlet of greater cross-sectional area than the inlet opening generally radially outwardly of the cylindrical passage substantially diametrically opposite the inlet. The cylindrical chamber includes a substantially tangential air inlet closely beneath the top wall and a tubular passage communicates the lateral airflow outlet with the tangential inlet.</p> |
