, 1877-04-21

A"0 vans are now quit up 10 q
height of about 10 #. aud when finished
their height will be 20 #. It will be
observed that a comparatively small por.
ton OF the space enclosed is cut off by
o cross wall near the east end. This
will be the machine workshop in which
repairs to the various machines and en-.
glnes will be made; while the other or
main portion Of the building will contain
the apparatus for manufacturing the sugar.
1t would be out of place in this brief
sketch to enter into any description of the
machinery by which this is to be done;
but as the work progresses, we hope to
be able, through the kindness of the
Technical Manager, to give our readers
from time 10 time some account of the
machinery and processes employed. We
will here merely state that the Juice
is to be boiled by steam in vacuum pans,
and that the sugar obtained will be dried
in centrifugaIs. 1t will be observed by q
visitor to the spot, that, besides the main
building, there are indications Of four
other buildings projecting from the main
structure towards the South west. In the
most Western OF these the Juice will be
passed through large filters sixteen feet
deep, filled with animal charcoal and in
ano her part of the same building the
charcoal will b. returned after use. Close
to this building will be Seen a large cistern
for rain water. The second building is
designed 10 hold the furnaces and boilers for
furnishing the steam required to drive the
third building is intended for the first
molasses: and the last (the large pitch
pine building towards the South east)
for the second molasses. The sugar itself
will be stored in an upper floor of the
main building, and its shipment will
b. facilitated by means of a long lefty
which may be seen stretching out over
the shallow water.
We will close this sketch by noticing the
plan for bringing the cane juice saftlyto the
Factory. II has already been mentioned
that it is to be forced through pipes but
every body knows that cane juice in its
natural condition could not bs passed
through any great length of pipes without
the certainty of becoming partially acid,
and consequently spoiled, during the pas.
sage. The Juice must therefore be prepared
for the journey, and this preparation con.
sists in saturating it with lime. The lime
enters into combination with the sugar, and
no further change can then take place.
The next question is how to get out this
lime from the juice at the journeys end
and this will be accomplished in q very
ingenious way. Attached to the factory
will be a llmekiIn, in which the lime requir-
eG for preserving the juice will be made.
Now our readers are no doubt aware that
limestone consists of a union Of carbonic.
0cid gas with lime, and that when the
stone is burnt the carbonic acid is driven
off into the air, while the lime remains.
The carbonic.acid thus forcibly driven of
has, however, a strong tendency 10 unite
with the lime again, and would actually do
so if the two were brought into contact in
the cold state. This liking Of the carbonic
acid for the lime will be taken advantage Of
by the chemists of the Factory instead of
allowing the gas to escape into the air
during the burning Of the stone, they will
collect it and force it into the tanks con-
tanning the newly arrived lime. cured Juice.
when it will combine with the lime and
form o visible white powder floating
through the liquid. This powder will be
separated by filtration and thus the lime
,.;lI h. oot rid If ond Tho ;uino will ho