The Hawaiian gazette., 1884-05-07
Benefits of Using the Jarvis Furnace for
Burning Wet Trash.
P1oSEER sUeAR MILL,


Enron GAzErTE;-In answer to many inquiries
made IN relation to the comparative performed
duty of the Jarvis Patent Furnaces for burning
the wet or fresh cane trash direct from the rolls
With the same boilers set in the usual way and
using dry trash with wood and coal for fuel
The boilers for. the mill arc three pairs Of COM
pound, set tandem with Jarvis furnaces at the front
and supplied with fresh trash from the carrier.
delivered at the furnace doors. The best CON-
bustion of the trash is attained by using the
"Risdon' or "Spreckelsn CRATE bar first applied
70 the Jarvis furnace by Mr.. f. $. Dunn. the en-
Company. The first boiler is six feet in diameter
and 10 f. in. long, with one cornish fiue IT. in
diameter; the second or rear boiler is also G. II in
diameter, with 81 tubes 4 in. in diameter, making
the whole battery of six boilers, and generating
all the steam for driving the machinery and evan
Grating purposes of the works. The mill consists
of one Pntnam engine of so horse power for iriy-
ing the rolls which are of Honolulu make, three
IN number, size 3Ox6O in, double geared. with a
capacity of 20 tons per day, and now averaging 10
tons with ten hours work. Also. one engine of 20
horse power, driving six Hepworth centrifugal
machines; one engine Of % horse power for driv-
ing the double ait pump to the vacuum pan; one
engine of eight horse power for fire pump making
full 40 horse power for the engines alone Steam
~ also used LOT one Blake pump for the double
eoct capacity 10 tons in 10 hours the two effects
have 1600 square feet of heating surface, copper
tubes and brass heads; the vacuum pan has three
coils of three inch copper pipe taking steam from
the boilers at 60 lbs. pressure. There are two
temperature Of 30 deg. Fht.; one No. 5 Blake
pump for molasses; one g. service pump, taking
juice from the mill TO the CHARTERS at a speed Of
About IS gals. per minute; one Nos Knowles pump
10 supply the double effect tanks; one of same szC
for the scum press; enc No. l Blake pump for tax
ing syrup 70 The double effect, and wash deck pump
Of 60 gals. per minute capacity, for the boiling
room. There are six CHARTERS of 500 lmperia
gals. each using direct steam from the boilers
one cleaning pan with a in. iron coil; one blow
up tank with in. pipe using live steam from the
boaers one 10 m foot lathe and one largest siz'
power pipe cutter.
The nfnl building consists of one main part 1Sl
feet long by o. feet wide; sugar room 110x26 feet
boiler house, c0x40 feet; one iron chimney fee
in diameter, s. feet high
No comparative difference or cain in the Jarvi,
patent setting of the same boilers over the usua
compound setting is found to average in this mil
/. for los days steady run; producing in the aboy,
time 1900 tons OF sugar from the burning Of We
trash and about 10 cords of wood, against m,
burning Of all dry trash at an average cost of $40
-Sar month for isbor in drying, and the MONTH,
ce1sumption of 30 tons of coal and about six cord
al wood. which for the above los days run woul,
Ennls the additional cost Of 80 tons of coal ans
: about % cords Of wood for the same length 0
r cunning time.
= We most cordially invite the planters and suga
manufacturers TO see our furnaces and judge 70
themselves of the difference in the Jarvis and th
common OF compound setting of boilers
h. TUKroN.