| 摘要 |
Hydrocyclone apparatus having means for controlling the gravity of the discharging underflow which consists of a device formed of resilient material that is mounted directly below the apex opening of the hydrocyclone. The device provides a plurality of sectors which when relaxed extend inwardly toward the hydrocyclone axis, with the side edges of each sector in juxtaposition with adjacent sectors. When the hydrocyclone is operating the downward thrust of underflow material directly overlying the device causes the sectors to be deflected downwardly to so control the underflow as to maintain its density substantially constant irrespective of changes in the density of the slurry supplied to the inlet. Preferably the construction of the device is such that when the sectors are relaxed they are arched upwardly.
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