The Elk Mountain pilot., 1882-02-02
Il NEWS1kEL TING FURNACE.

II NE WSlLELz2lVG FURNACE.
We see in the Leadville Chronicle
the following reference made with
regard to new smelling furnace in
vented by Mr.. c. H. Murray, of
Grants works, that place, bent who
has spent two years in Ruby Camp.
and is interested in some promising
claims here. His many friends here
will read the foregoing with interest: ::
Mr.. c. H. Murray, of the Grant
Smelling company of Leadville, who
has been connected with the smelling
business both here and, elsewhere for
several years, has invented gas fame
blast furnace that may revolutionize
the present method of reducing ores.
The invention relates wholly to new
application of the .Mel. 1t has long
been known that in the use of coke
or charcoal in the ordinary blast
furnace, only about one third of the
full heat value Of the fuel is attained,
in consequence of its almost entire
conversion into carbonic oxide. The
difference between burning these fuels
into carbonic oxide, or into carbonic
acid gas, can be appreciated when it
is known that one gramme of either
burned into carbonic acid, will give
5000 heat units; while one gramme
burned to carbonic oxide produces
but 2,473 heat units. There is also
great waste in driving off all the
volatile or gas making materials from
the coal in converting it into coke.
He not only proposes to use the
raw coal either bituminous or camel
coal-for fuel, but also to effect its
complete combustion, SO as to secure
all its heat making power for smelling
purposes.
MIR. Murray's furnace consists OF
one fuel chamber and one gas cham
Der, placed on either side Of his smell
ting furnace proper. The fuel cham
bers are divided into an upper and
lower section by an air-tight sliding
plate. When it is necessary to feed
the fuel this plate is pushed in, and
the coal is fed through door On the
top of the chamber. This door is
then fastened down air-tight, and the
sliding plate pulled out, so the fuel
settles as consumed. Below the slid
ing plates are two sets of wind pipes.
The lower set near the CRATE bars keep
the coal at that point at a white heat,
while the upper set blow down through
this white heat any vapors or smoke
that may be forming above. Thus
the draft, ~,instead Of coming up
through the crate bars are reversed,
and goes down through them, COM
pletely consuming all smoke and con-
verting the volatile portions of the
coal into gas. Passing under an arch
the draft goes up into a small chamber
that communicates with the smelling
furnace. Covering over the entire
of this gas chamber is an inclosed
fresh air blast. The position between
the gas chamber and the fresh air
passage, consists of a copper plate
that is gathered in folds or grooves
three-quarters of an inch deep by
three-eights of an inch wide. As the
gases are pressed forward by the blast
in the fuel chamber, they enter the
smelling furnace through each alter
nate groove, while fresh air is pressed
IN from above and enters the furnace
on the same plane with the gas, but
in alternating jets, thus securing the
complete combustion of the gases
contiguous to the ores. The great
heat of the gases in the gas chamber
heats up the copper plate, and this,
with its large radiatlng surface, warns
up the air above it and facilitates the
combining of the air with tie gases,
efecting their combustion as the lets
OF air and gas enter the smelling fur
mace. For the generation and main
tenancc Of fame, space must be
provided, and this has been the great
obstacle heretofore in attempting to
make gas-aame blast furnace. To
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