Mixing impellers Blending

For blending design and selection of mixing impellers, the fluids are divided into those below and above 50,000 cp [29]. Different impellers must be selected for the various ranges of viscosities, even within the 50,000 cp limits. 

External jackets, 326-328 Helical coils, 312, 326, 327 Vertical coils, 326, 327 Mixing impellers, 290-297 Anchor, 290-329 Blending, 324, 326 Characteristic curves, 306 Chart to examine turbine applications, 296 Efficiency of propellers, 299 Flow of propellers. 298, 299 Flow patterns, 309-312 Gas-Liquid contacting, 324, 326 General list impellers, 291 Helical, 290, 329 Liquid-liquid dispersion, 326 Multiple, 297... 

Zwietering constant values for, 16 694t Impeller types, in mixing and blending,... 

Using moderate agitation (800 rpm) provided by a Lightnin Mixer or similar variable speed unit and an impeller suitable for general mixing and blending operations, disperse or screen the Carbopol resin into the DI water. 

Axial-tlow impellers rnav also be mounted near the bottom of the cylindrical wall of a cssel as shown in Fig, 18-10, Such side-entering agitators are used to blend low- iscositv fluids [<(), Pa-s (100 cP)] or to keep slowly settling sediment suspended in tanks as large as some 4000 rn (1(P gal). Mixing of paper pulp i.s often carried out by sideentering propellers. 

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