Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1904-11-17
Sugar Manufac ure
TOPICS TO-DAY
Sugar Machinery

morning took up the Ques'ioh VI wv
manufacture of sugar. discussing re-
port by J. N. S. Williams. chairman of
the Committee on Manufacture.
The portion of his report devoted to
improvements follows:
During the past season this Associa-
ton entered into arrangements with a
gentleman from Java to come to this
country and instruct certain factory
operators in what is known as the
Java Process" OF boiling sugar
In brief terms this process consists
In reducing the material operated upon
to a certain standard purity or set of
purities so planned that a large proper
ton of the No. molasses IL worked
with the syrups resulting from the
cane Juice. and boiling so as to pro,
duce q class of goods that by treat.
ment in the centrifugal machines will
result in shipping sugar Of sufficient.
ly high grade to send to market.
Crystallizers are used for No. su.
gars. These sugars are washed In the
centrifugal machines with water, which
wash water is kept separate from the
first molasses. The sugars after dry.
ing in the machines are passed through
driers and granulators.
The first molasses Is then brought Ia
a standard purity by mixture with low
er grades. Is boiled and put into crys
tallizers. treated, dried and washed
graduated aud mixed with the sugars
resulting from the first boiling, the
whole product being shipped as No.
sugar, the resulting molasses from the
second boiling being waste generally
The length of time under operation
for the first boiling. including crystal
liZation, Is about eighteen hours; and
for the second boiling. including crys
utilization. is about As hours. so that
In say three days time. the whole OF
the available sugar in the cane ground
is In bags and the waste molasses Il
, out Of the mill.
II goes without saying that this is g
most satisfactory method of operation
for those factories that are arranged
for doing this work properly. but the
process requires for its successful op
Grafton more crystallizers and NOR,
centrifugals than are ordinarily USED
and the waste molasses runs somewhat
higher In sugar and purity. while II
actual quantity there seems to b.
somewhat less molasses produced pei
ton of cane ground, so that the actua
loss OF sugar In tho waste molasse'
may be even less by the use of tn,
Java Process" than by the common
method. The process is now In sue
cessful and satisfactory operation a
Waialua, Oahu, which factory In II!
original design lent itself better thar
almost any other factory in the coun
try to the application Of this method
Thers is but one point about thu
Java process that can be adopted b,
any factory without cost for new ma
chinery. and that is the plan of boiling
TO standard puritles. and your commit
I tee recommends that this be studied
over by every factory manager in thu
| hht pan Wei
for an Increase OF No. l sugar at thu
first boiling and reduction of tn,
losses In the waste molasses.
II will he noted In the foregoing tina
no attempt has been made to compar,
results In yields of sugar or in cost o
production; before such comparison
can be made a uniform basis for state
ment should be adopted.
As an Illustration Of this necessit.
the following may be noted:
or the 2S factories weighing can
only use U. s. standard weights TO
proving the accuracy of their weighln
apparatus. The other factories us
varies schemes for checking the az
curacy of the scales. Ten factories d
not weigh cane.
Allowance for dirt and field trasl
are made by some and not by Others
and those that make deductions vary |
the method Of obtaining the figures
some weigh a sample car every day
some once week and some estimat
by looks only.
The mixed juice from the mills tai
on into manufacture is weighed b.
some, measured by some. and calcula'
ed by others.
With such differences of method a
the beginning OF manufacture 1t is no
surprising that some factories vii
state that they obtain SO lbs. OF No.
sugar from 100 lbs. OF first mass'
,cuites while others get only 30 lbs
the fact being that very few. reall
know what they obtain.
II can be truly stated that there ar
very few sugar factories In this Teri
tory that can compare In the system @
control, with average beet factories |
any part of the world, and as the bee
sugar factories have made sue
strides In the past few years 1t is SURF
ly incumbent upon this Association I
suggest the adoption Of similar meti
DDS whereby accurate knowledge q
what is going on in the manufacture
our staple product be obtained.
II therefore seems to your COMM
tee that It Is highly desirable that
standard method of stating results b