Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1900-12-15
THE WORLDS BIGGEST CYANIDE CAMP. N

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connection three wines were sunk and
these are now used as ore chutes for
we three grades OF ore dumped into
them from the Resolute tunnel. which
connects with all parts Of the mine:
the ore being trammed thence to ore
pockets on the Sawmil tunnel Of the
Golden Gate and hoisted thence
70 the mill The ore body
IN this Electric tunnel is
considered as the silver vein, and while
the average Is not high II affords a good
average when mixed with the richer or
base ore.
The tramway Is now covered I'm and
an electric motor is expected shortly
TO haul the ore from the Mercur side
TO the mill The tramway was con
structed recently at an expense OF
about $4,000.
THE GOLDEN GATE.
II Is estimated that about two-thirds
Of the ore mllled at present IL taken
from the Mercur side. Consequently,
It VIII be seen that a limited force is
employed In the Brickyard and Gold
en- Gate divisions Of the great bonanza.
which are being drawn on for only
about one-thlrd Of the necessary ore.
In the Golden Gate superintendent
Edwards reports an important develop
ment above the Viking level where a
drift has been driven 60 feet through
body Of ore ~ feet thick. The ore is
said TO be Of good grade. A new de-
Nelopment IS also reported on the low
est workings in the mine, where a
Wine Is now being sunk In mixed ore
which assays from s. 10 SIS per ton. At
last report the win2e was down some
twenty feet. The Brickyard or north
ern end Of the great property is also
said 20 be looking we'll with the ore
bodies rising as they pass under the
mountain II appears probable that
the Rover, Silver lode and Gold Dust
properties VIII yet furnish ore for the
great Mercur mill, While this APP
pears probable on the north side there
Is now little doubt but that the mother
lode OF the Mercur will be found going
down under the lngot on the south end.
THE GREAT MILL.
The accompanying picture OF the
great Golden Gate mill probably
speaks louder than words But inn
pressive as is the outside view Of the
greatest cyanide plant in the world. it
does not give onean idea OF the intricate
workings OF the inside machinery 10y
which the ore is prepared for the all
powerful cyanide solution. From the
ore pockets az the saWmil tunnel
which hold about 500 tons. the ore is
conveyed up an incline 20 the two No.
q gyratory Gates Crushers where ar
ter being crushed il passes into bins
Only two kinds OF ore are hoisted al
one time and here, as elsewhere. the
three kinds Of ore are kept separate.
After passing through the No. crush
ers the ores are passed TO the rolls by
belt Conveyors. after which the mixed
ore Is passed 10 two dryers where II
Is calclned 90 overcome the tendency
10 become Shiny In the tanks A new
device has Just been started by which
after being dried the mixed ores are
along iron trouChs TO the pulp
bins, thus being gradually cooled. AZ.
ter passing through the rolls the oxl-
died ore goes straisht 10 the pulp
bins whore Il Is ready for teaching
The base ore passes from the rolls ~
the roasters DESIGNED By Mr.. J. e.
Jackling Here the ore is submitted
10 a heat sufficient 10 make II lvld BY
this means the sulphur and arsenic are
driven OF and much OF II passes out
Of the great cight-foot smoke stack.
Some of the arsenic is deposited. how
ever IN pure crystals at the sides Of
the furnaces. As the crushed ore is
PASSED in at one end Of the furnace II
IS gradually moved 10 the other end
nv what are termed plouGhs, operated
hv an endless chain Thev consist 81
steel bars fastened 10 a chain. Con-
nected with the bars are a number Of
nblong pieces Of stool placed at n GER
tain angle So that as each rlouch
comes along they slowly push the ore
10 the exit end OF the furnace where
Il IS elevated ny machinery ~ the cool
ars on top ~ the furnace Tho ploughs
os they revolve. perform the same ser
vice here and move the ore 10 the other
md OF the cooler after which Il goes
10 the PUN bins md Is then taken 10 |
The teaching tanks which occuny the |
whole OF the lowest part Of the /
The three grades OF /
ire are now dumped into the tantS by I
'ars after which the cyanide solution /
Is turned on and allowed 10 stand IN /
he tanks for several hours II is then |
drained on and rassed through pipes |
which connect al the tanks with the |
he settling tanks no the bottom Of the |
building. Ar'ther lot of cyanide solu- /
ion Is then turned into the tank OF ore |
md last Of all Il Is filled with water,
which. I'm turn, passes to the settling .
ank. By this time the gold IN the ore
las all been extracted excepting about
n or sO cents per ton The cars which
'un under the tank are then brought
nto play and the taiings from the
llg tanks are shoveled out through a
lole IN the center ~ the tank-over
which n cap had been placed-and con-
eyed 10 the dump.
PRECIPITATION.
There Is no loss Of the valuable fluid