A Practical Handbook on the Distillation of Alcohol from Farm ProductsWright, F. B. (Frederic B.)
Science
A Practical Handbook on the Distillation of Alcohol from Farm Products
Wright, F. B. (Frederic B.)
Alcohol; Alcohol, Denatured
[Illustration: FIG. 32.--Continuous Distilling Apparatus with Goose
Separator. (_To face page 76_)]
Fig. 32 illustrates another form of distilling apparatus manufactured by
the same company, which is practically the same as the apparatus
previously described except that it is provided with a "goose-necked"
separator, interposed between the wash-heater and the enclosure. This
consists of a series of convoluted tubes contained in a tank of cold
water. The vapor from the heater passes into these convolutions. The
heavier vapors are condensed therein and returned to the heater from
which they descend into the column while the more volatilized vapors pass
over into the final condenser. The _U_-bends at the bottoms of each
convolution act like so many low wine chambers in the still shown in Fig.
9 the highly heated vapor continually bubbling through the condensed
vapor in the _U_ bend and there becoming greatly enriched and
concentrated.
This apparatus, it is claimed, is applicable to the distillation of
grain, molasses or cane juice and will yield 170 or 180 per cent., or the
equivalent to 85-90 G. L. or 34-36 Cartier.
[Illustration: FIG. 33.--Section of Gillaume's Inclined Column Still.]
A distinctly modern type of still, though akin to the still shown in
Figs. 19 and 20, is the inclined column of Gillaume, shown in section in
Fig. 33 and in full view in Fig. 34. Gillaume in devising this form of
apparatus had particularly in mind the distillation of thick washes, and
the necessity of compelling a circulation of the wash.
[Illustration: FIG. 34.--Gillaume's Inclined Column Still.]
The bottom of the inclined column _A_ is divided by lateral extending,
upwardly projecting plates or partitions _a_ forming a continuous
channel through which the wash passes from side to side and from top to
bottom and then out through a regulator. The upper plate of the column
has downwardly projecting partitions _b_ which with the partitions _a_
form a series of traps. The steam enters at the bottom of the column into
a reservoir, and in order to pass upward is forced beneath each partition
_b_ and through the washer contained in the channels of the bottom. When
it reaches the upper end of the column it has passed through a continuous
series of wash-filled compartments containing a constantly moving current
of wash.
The vapors from the top of the column pass off to the wash heater or to a
concentrator.
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