Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1909-03-25


more sugar annually than any other planta.
ton in the world, however it turns out more
sugar annually than any plantation in these
Islands.
Two large 12.roler mills, one made by the
Honolulu Iron Works Company, Honolulu.
and one by the Fulton Iron Works Company,
st. Louis, and each preceded by Krajewski
crusher. and Smith revolving cane knives,
constitute the crushing plant. Both mills
are 3ix7S, one Of them being a new one. a
portion of the other having been removed
from Spreckelsville when the old mill was
abandoned. They are fitted with modern
improvements, the hydraulic and water
jacketed bearings being a special feature.
All of the cane is brought to the mill In
railroad cars and is dumped upon the two
endnless carriers and fed thence through the
revolving knives and crushers to the mill
proper. The bagasse, or waste from the cane
is fed automatically to the furnaces which
are equipped to burn crude oil II necessary.
There is room in this enormous building for
another 12-roller mill should the increase In
crop require 1t.
In the boiler house. fourteen multi.tubular
boilers 7x2O feet each are set In two rows
upon opposite sides of the room. Space for
six new boilers has been left Besides ba.
gasse and oil the boilers consume waste mo.
lasses. Draught for the boilers is obtained
through two smoke stacks, each 121a feet In
diameter and $50 feet high.
The first nine rollers and crusher of No.
1 mill are driven by Hamilton Corliss en-.
CINE of $50 horsepower The last three rolls
OF this mill are driven by $50 horsepower
engine. No. mill is driven by seperate en-.
gines in manner similar to No. /.
Juice extracted by the mills is pumped up.
stairs by two Guild and Garrison pumps to
three lining tanks Of $500 gallons capacity
each, where II is treated with lime and
measured. II is then pumped from lining
tanks through Juice heaters to a set of
twenty-eight Intermittent settling tanks and
allowed to stand until the dirt settles. The
clear supernatant Juice is then drawn off
and flows by gravity through a set of ten
mechanical filters, after which II flows by
gravity to the evaporators. The mud Is
taken from the bottom Of the settling tanks
to another set of ten settling tanks where
It is treated with lime and then pumped
through filter press, which separates the
clear Juice from the mud The mud is sent
to the fields where It is used for fertilizer.
The juice is pumped upstairs and unites
with the clear Juice from the settling tanks,
both being sent to the evaporators.
The two evaporators of the Lille type each
have rated capacity to evaporate 100000
gallons Of juice In "a hours The apparatus
Is set In quadruple effect and works with
exhaust steam alone. The juice upon leav.
ing the evaporators Is only about 80 per cent.
Of the amount which enters them and now
is known as syrup and is ready for the vac.
uum pans.
Four vacuum pans of the Kilby make have
a capacity OF 35 tons of dry sugar each at
one strike and one Of the peeley type has a
capacity Of 20 tons. The syrup, after hav-
ing been boiled, goes to the centrifugals, of
which there are twenty-eight 4O.inch, made
by the American Tool and Machine Com
pany Of Boston and water driven.
No. 1 sugar and first molasses is the re.
suit obtained from the centrifugals. The
No /, or A, sugar, is bagged and sewn by
machine which is the first of the kind In use
In Hawaii These machines, of which there
are two, are very ingenious contrivances, one
man alone operating a machine and sewing
three bags of sugar per minute, while two
men are required to take the bags away after
they have been sewn.
The first molasses, which is the result OF
drying No. sugar, is taken back into pro-
cess and put into crystallizers, of which there
are twelve Within the crystallizers II Is
operated upon for about six days by stir.
rers and then dried In the centrifugals where
It becomes No. 2 sugar and second molasses.
The No. 2 sugar is worked over again into
No, sugar while the second molasses, II of
a poor quality, is used as fuel or mixed with
cane tops and fed to the stock. Second mo-
lasses II Of sufficient quality, Is given a
special treatment and Is finally dried in a
special set of eight 3Oinch centrifugals and
becomes No. l sugar.
The capacity Of the mill is from 24OO to