Page 325 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Mixing of Liquids 293

Figure 5-5J. Bottom of flat-blade turbine Figure 5-5K. Plain cage beater. Imparts a Figure 5-5L. Studded cage beater. Enor-
with stabilizing ring to prevent shaft whip. cutting and beating action. It is usually mous contact area gives extremely violent
Courtesy of Lightnin (formerly Mixing combined with a standard propeller, which cutting and shredding action to certain
Equipment Co.), a unit of General Signal. supplies movement in the mix. Courtesy of emulsions, pulps, etc. Courtesy of Lightnin
Lightnin (fonnerly Mixing Equipment Co.), (fonnerly Mixing Equipment Co.), a unit of
a unit of General Signal. General Signal.

Figure 5-5M. Saw-toothed propeller. Dis- Figure 5-5N. Perforated propeller. Occa- Figure 5-50. Folding propeller. May be
places a large amount of liquid and com- sionally recommended for wetting dry passed through a very small opening.
bines a cutting and tearing action. Suit- powders, especially those that tend to Blades assume working position through
able for fibrous materials. Courtesy of fonn into lumps. Courtesy of Lightnin (for- centrifugal force only while rotating. Cour-
Lightnln (fonner1y Mixing Equipment Co.), merly Mixing Equipment Co.), a unit of tesy of Lightnin (fonnerly Mixing Equip-
a unit of General Signal. General Signal. ment Co.), a unit of General Signal.

Figure 5-5R. Cut-out propeller. Displaces
Figure 5-5Q. Weedless propeller. Handles a small amount of liquid combined with a
Figure 5-5P. Propeller with ring guard. For long fibrous materials that would become high rate of shear for shredding, breaking
extra safety where sounding rods are used entangled in the ordinary propeller. Cour- up pulps, etc. Courtesy of Lightnin (for-
or where samples are taken by hand dip- tesy of Lightnin (fonnerly Mixing Equip- merly Mixing Equipment Co.), a unit of
ping. Courtesy of Lightnin (formerly Mixing ment Co.), a unit of General Signal. General Signal.
Equipment Co.), a unit of General Signal. (Figure .5-.5 continued on next page)