The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1909-01-18

generally burned on a CRATE at one end OF
the furnace. the flame only entering the
furnace. the heat being DETECTED down
ward and concentrated onto the charge
To obtain the full efficiency Of the fuel
same should ne burned at a point where
the heat is rsquired-iE the furnace ITSELF
and. as in the case Of the fusion Of the
ore. The maximum efficiency is obtained
when the coal is ground to a powder the
finer the better. for then the combustion
Is practically instantaneous. Blast FUR
naces require coke. product which is not
always available. and moreover it is eX-
Densive as compared to coal Oil has new
or been successfully used in blast fur
mace smelling practice. though some has
been used in rcNerberatorN WORK IN the
Fink furnace. coal. oil, charcoal OF saw
dust NAV be used. the heat obtained being
augmented further, where the ores carry
sulphur. By the combustion OF TINS element
in the furnace In many instances, when
Ouce the smelling operation Is underway,
the sulphur alone is capable of supplying
most OF the heat required For smelling.
The plant at Garfield consists OF two bar
rei-shsped rzccptaclcs, capanie or reVoiN-
ing at different speeds ana in opposite
directions. The fuel is blown into one and
the flame is returned into the second
furnace. While the charge IN the hrst
furnace is being sneited and refined the
charge in the second furnace + roasting
the heat being supplied from the gases
escaping from the first furnace ne
construction Of the furnace allows OF
bessemer smelling ss vel as refining OPP
Grafton an dthe crude ore charged into
the furnace is discharged as q hnlsncd
product-blister copper
Introduction OF Ore.
Fresh ore is fed into the furnace either
continuously or Internationally, being in
PRODUCED into the bath Of molten Stag and
matte causing the fine particles to fuse
Immediately. thus preventing their escape
a fIue dust. The revolving of the furnace
hasfens the smelling action very material
IL and makes possible the bessemcTizing
operation In it. \ permanent refractory
lining is used. thus differing from the reg
ular converter. which must be lined with
silica. which lining is consumed in a very
short time Although the Fink furnace has
been designed primarily for treating fine
ores and flue dust II may also be en-
ployed for smelling ordinary ores. II be-
ing only necessary to reduce the size OF
the larger pieces by passing same through
suitable crushers. The blast furnace IS
Dre-eninently a furnace OF great capacity
and will continue as most economical
reduCer Of ores suited to that style OF
smelling. vet its usefulness hardly CNNendS
to plants of small capacity; moreover, the
product obtained is always a matte which
requires subsequent treatment to bring
same to blister copper. To be suCcessful
such a plant must be operated cOntInu-
ously. a condition which is often difficult
/ to meet where the ore supply IS irregular.
/ The Fink furnace may be successfully
I run Internationally and small plants may
Z be economically operated. The experiment
tai plant at Garfield was designed for US
| ing oil. however. vet local conditions made
| It expedient to use coal. making it neces-
l sary to improvise apparatus to accomplish
/ this after the furnace was already on the
ground. While far from perfect and very
crude in its conception. this improvised
| apparatus mas shown the possibilities OF
powdered coal The furnace is now being
| changed to use oil. and when the install
/ Iation is complete it will be possible to
/ change from one form OF fuel to another
/ without any delay. Too much credit can
| not be given TO Samuel Newhouse, who
/ made possible the testing out Of the fur
| mace and process on a commercial scale
| The delays incident to installing and blow
/ ing in of the furnace would have discour-
! aged a man of less courage and perseveT-
/ ance. vet through all he never wavered an
| instant. What success it has been posi-
/ bic to achieve thus far may be placed
/ wholly to the credit of Mr.. NewhOuse-