Tonopah bonanza. [volume] (Butler City [i.e. Butler], Nev.) 1901-1909, 1904-01-02
TONOR.AH'S new CUSTOM
MILL in OPERATION
An Outline Of the Principal Features--Ore Being
Worked to a High Per Cent
The Most Complete and Modern Mill Ever
Erected i'm the WOrld---The Plant is
Estimated to Have Cost $4,000


Fhe first pan when full o%veraows
into the second which together with
the six succeeding ones are ANAL ga
mating pans, and the second over
flows into the third, etc, throughout
the series. From the pans the pulp
flows through a pair of eight feet
settlers, thus passing through the
mill automatically.
The preparatory chemical treat
ment is applied by automatice feed
ers to the chemical mixer, when the
pulp is heated by steam to a temper
AZURE of about $50 degrees Fahrenheit.
The matchmaking pans are ar
ranged to run quicksilver in and out
at will, and the chemicals may be
applied to benefit the quick at or
near the last of the line of pans.
Amalgamating by this method, the
pulp comes to the pans in even, reg
ular proportions of sands and shines.
1t all necessarily passes through the
series of pans and settlers, and con-
~sequently receives a uniform treat
ment.. Such uniformity cannot be
attained when the pulp is settled in
tanks and worked by charges. The
amount Of treatment the pulp re-
ceives in its passage is proportionate
to the size of the stream that flows
into the pans, and the amount of
treatment may be increased by de-
creasing the flow, or vice versa.
The marked advantage of such a
thorough and systematic treatment
is a material saving in labor, in
creased cleanliness, and the entire
flow of pulp always in hand under
the supervision of the attendant.
In order to secure the continuous
flow of pulp through the line when
one or more pans or settlers are
stopped, steam siphons are provided
for carrying the pulp past them and
cutting out for repairs or cleaning.
In cleaning up, the batteries are
never hung up longer than it takes
to clean out two or three pans, con.
sequently a maximum duty is got out
Of the whole mill.
All the water from the batteries
must pass through the pans except
, such part OF it as is separated out al
the Huntington mills, SO that all the
t shines are treated. There is there.
fore less loss of quicksilver. A true
sample of tailings may thus be taken
) which by the old method is impossible
This process is a peculiarly eco
nomical one, and is believed to b.
3 unquestionably adapted to the treat
l ment of the ores which this mill is t.
receive. Indeed, it is the conviction
, of the leading metallurgical engineer,
4 that this process is the only one o
9 all the known milling processes bes.
0 adapted to these ores.
( 1t is estimated that this mill vii
require apout 1000 gallons of waite
8 per ton of ore treated, although a
e heretofore suggested about half O
this amount will be intercepted a
e the Huntington mills, settled and re
q used.
g A 1875 horse power Diesel engin
S has been installed to run the mill
S This is said to be q very efficient an,
a economical engine. This engine is t.
use the Shamrock" brand of crud
b oil, consuming it is estimated abou
e ITO gallons per twenty-four hours
when running on full load. 1t is t
actuate the entire plant, excepting
. small unit which has been installed t
h furnish compressed air for the Diest
engine and to drive the lighting dy
4 namo.
This plant it is said cost $85. OOC
but it is n of the most complet
i, and modern of its kind in the world
. This seems an excessive cost but
4 must be remembered that concrete
steel and heavy machinery haule
10 sixty miles across the desert in add
ton to the very heavy railroad rate
" costs a great deal of money.
" The BONANZA Candy Kitchen r,
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