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Massecuite conditioning, how to improve low raw massecuite curing.

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o 5 10 15 20 25<br />

Residence time (min)<br />

I~MC Temperature -<br />

- - MC Saturation I<br />

Figure 6 - Re-heater temperature & saturation profile<br />

Figure 6 assumes that the f<strong>low</strong> of <strong>massecuite</strong> through a conventional finned<br />

heater is linear, as it has a high heating surface with narrow <strong>massecuite</strong> voids.<br />

It is considered that a correctly designed heater does not channel as it is self<br />

regulating, with high <strong>massecuite</strong> f<strong>low</strong> passing over the heating elements less<br />

heat is absorbed. This tending <strong>to</strong> s<strong>low</strong> the rate of throughput, due <strong>to</strong> its change<br />

in its saturation/viscosity. When the rate s<strong>low</strong>s additional heat is taken in,<br />

again altering the <strong>massecuite</strong> al<strong>low</strong>ing the f<strong>low</strong> <strong>to</strong> increase.<br />

A Typical <strong>massecuite</strong> reheater<br />

310

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