From the sparger into the impeller zone, they are subjected to very high shear forcee from operation of the stirrer that cause bubble break-up the resulting small bubbles are flung out by the impeller into the bulk liquid for dispersion throughout the vessel although the type of sparger used has a relatively minor in fluence on the mixing process in most stirred tank , the diameter (ds) of the large ring spargers and the separation (ss) between the sparger and impeller (figure 8.3) can have an important influence on the efficiency of gas dispersion
8.2.4
The primary function of the stirrer shaft is to transmit torque from stirrer motor to the impeller torque is the tendency of a force to cause an object to rotate the magnitude