Pulsar mixer

In the Pulsar mixer a helical groove is machined into the root of the screw the helix angle of the groove is greater than the helix angle of the flight. As a result, some... 

In variable depth mixers, the channel depth of the mixer is varied to obtain improved mixing. An example of a variable depth mixer is the double wave screw shown in Fig. 8.81 and the energy transfer screw see Fig. 12.23. Another example is the Pulsar mixing section shown in Fig. 8.103. 

The channel depth varies periodically in each channel in such a way that when one channel decreases in depth, the other increases and vice versa. In this mixer there is no strong mechanism for flow splitting and reorientation. Thus, the mixing capability of this mixer is moderate. Other variable depth mixers are the Pulsar and Strata-blend mixing sections (see Fig. 57). These do not achieve efficient flow splitting and reorientation. 

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