| 摘要 |
A hydrocyclone for separating, at least partially, fluid mixtures having at least one predominant liquid component, said hydrocyclone comprising a first end and, remote from said first end, a second end, the cross-sectional area of the hydrocyclone in at least one location towards said second end being less than the cross-sectional area of the hydrocyclone at said first end, said hydrocyclone further inlcuding at least one inlet means in the region of the said first end for introducing feed mixture(s) and at least two outlet means, with at least one outlet means in the region of said second end, said hydrocyclone further including in the region of said second end fixed or movable flow-modifying means located at or near the hydrocyclone axis, said means being so constructed as to affect the flow towards the said second end of fluid containing a relatively large proportion of less dense component but to allow substantial annular flow past said flow-modifying means towards said second end of fluid containing a relatively large proportion of more dense component. Additionally, an embodiment of the main barrel of the hydrocyclone has (a) a velocity ratio Vr (defined herein) between 3 and 28, (b) a length at least ten times the nominal diameter (d2), (c) a section at least eight times d2 with a half angle of convergence ( alpha ) between 15' and 2 DEG , and, (d) a minimum cross-sectional diameter (d0) of the overflow outlet less than 25 % of d2. |
