Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1906-04-07
ORE DRESSING
At NEWHOUSE.
Method Practised in Reduction OF
Product of the Cactus
Copper Mine.
BASIS OF CONCENTRATION.
BASIS OF CONCENTRATION.
Mill Product Assays From 10 to Is
Per Cent Copptr--Steam shovel
Operation.

ne operation or inc NcWhOuse mn
IN which the ores of the Cactus mine
In Beaver county Undergo treatment.
Is portrayed BY correspondent Of the
Engineering & Mining Journal In late
Issue Of that well known mining pub
LEGATION.
The ores OF the Cactus mine, 1t Is
stated. are reduced on the basis of
from six TO ten into one, producing a
product containing from 10 TO 10 per
cent copper from s. to 50 In gold and
some silver.
At present all ore sent to the mill is
Drought out OF the mine through the
b,OOO- foot tunnel which connects with
the main shaft at 600 It. depth. This
tunnel has a grade OF IN. IN 100 IT,;
In 1t are laid 3O-lb rails, over which
trains OF mine cars, hauled by two 90
ton electric locomotives. are operated.
Within short time. however the mill
VIII be supplied with ore mined by the
steam shovel now employed in strip
ping the surface.
Near the entrance to the tunnel are
located the crushing plant and the
loading station. As each car comes from
the mine. It's contents are dumped au-
tomatically into bins fitted with grizz-
Hes. such ore as does not pass through
these grizzlies, runs through the chutes
INTO the Blake crushers. where 1t Is
crushed down Into product of not to
exceed one In. diameter. From the
gfizzlies and crushers the ore enters
storage-bins built with capacity for 500
tons. From these bins the product is
loaded into lngoldsby cars Operated
over the Newhouse, Copper Gulch 4
Silver Lake Railroad, which is owned
by the company, and conveyed to the
mlll, about two miles away.
On arriving at the mill the cars are
dumped into steel bins, the capacity
OF which is 1000 tons. The mill is erect
ed In two similar sections, The ore
from these bins is drawn out by means
OF belt-conveyors equipped with
plunger feeders. and is delivered 10 the
elevators, of which there are two I'm
each section OF the mill; one for dry,
the other for wet ores.
The product delivered to the dry ele-
vator which takes It to the top OF the
mil, hight of 70 IT, goes to l4-mm,
screen. and the oversize 10 a set OF i5x
5o-in. rolls, where II IL crushed 10 about
IA nm. size, and returned to the ele-
Vator. Everything that passes through
the lf-mm. screen and lies on 7-mm..
passes to the first two Jgs OF each
section, the screens used on the figs
In this case being ANN. size. Tho
concentrate IL taken off the jigs from a
side discharge and II is not put
through the screen into the hutch.
The second size is the product which
passes through nm. screen, and lies
on 3h-mm screen. The product from
the latter Is then sent to the No. Q jigs
In each section, the jigs being covered
win nm. screen, and jigged through
into the hutch.
The tailings from both jigs are con-
veyed through the wet elevator TO a.
set of 1896 IN, rolls. which crush them
rown to 3.5 nm, this being the finest
grinding done In the plant.
The material then passes through the
3.5-mm, screens, and remains on 10
mesh 2o-wire screen. The oversize IL
gent to another set Of jgs (No. 81, the
latter being covered by ANN. screen,
while the concentrate Is drawn of au-
Dramatically and delivered into cars for
shipment to the shelters.
From the latter jgs, the start TO.
ward making finished tailings IL under
taken, The undersize. passing from the
lO-mesh 20-wire screen. goes 10 a ls.
mesh 2S-wire screen. The oversize Cor
all remaining on the 16.mesh 23.wre
SCREEN goes 10 another set Of jlgs (No.
~, covered with a l0-mrsh 2s-wire
screen. The undersize from the 10
mesh 2S-wire scheen is sent TO hy-
draullc s.zer, The first size from this
slzer is sent to another set OF jigs No.
81, and the remainder OF the material
Is sized down TO four sizes and then
agf 10 has ta1x
The headwater from all the Wilfeys Is
pumped up TO slime settling system:
the shines from this system are re-
treated over Wiley slime tables.
All the water IN the shines settling
tanks II collected In one tank and used
to supply the jigs with water. On the
Nos 3, 4, and 5 jigs the tailings are dis
charged and sent out OF the mill The
product through the first and second
figs Is returned through the elevator
for retreating. The middllngs from the
tables are continually returned TO the
head of the same table for retreat
ment while the product from the jlgs
and tables Ia delivered into cars. which
are elevated and dumped into the con-
centrate bins, whence the ore II loaded
into the railroad cars and II ready for
shipment to the smelters at Salt Lake
over the San Pedro, Los Angeles & Salt
Lake railroad,
The mill receives lts water supply
from the Wah Wah springs ION the
west side Of the valley Of that name)
through n pipeline system a 900 feet IN
length The water comes down by
gravity and Is finally stored in a huge
reservoir above the mill and town OF
Newhouse.
No mine In the state OF Utah, or in
the west for that matter Is better
equipped than the Cactus.