The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1910-09-17

sixteen feet in diameter and are elgh-
teen feet high. They have revolving
was@TT.e1oied s,T.s Hfn shafts and arms, driven by
Idooics arc SO set as 10 move the ma
terial from the circumference to center
ana an VICE versa on alternate hearths, un
til II fnally drops into the calcine hop
pers. Immediately over the tracks OF the
eieGtrlc tramming system. for transpor-
aoEY S bnpa sf sharss floor r, Of the
than the sulphur in the crushed ore. the
burning OF which furnishes sufficient
lSia heat to do the salclning, The, gases are
taken through flues into the large brick
and steel dust chamber. which Is 120xI40
feet by forty feet high This dust cham
Der Is so arranged mat the bottom forms
a series OF hoppers. The entier contents
OF the dust chamber can be dra wn into
nue dust cars Of the electric tramming
system and conveyed directly to the re-
Each OF the thirty-two McDouEall fur
naces has an approximate capacity OF
forty -fve tons In twenty-four hours.
sFrom the roaster ore bin the ore Is
automa tically fed upon a conveyor sys-
tenn. which conveys IT up to and dis
charges It directly into the McDougall
SIT from the bins to the roaster plant
passes over a Blake Denison automatic
and continuous weighing and recording
machine, which accura tely weighs all the
ore delivered to the roaSter plant.
About Reverberatory Plant.
plant consists of three buildings joined
toGether-the reverberatory charge build
ing. containing the ore and coal hoppers
over the furnaces. 66X2S0 feet; the re-
verberatory furnace building, covering the
larger portion OF the Furnaces. S2X2S0
feet, and the boiler house, 35x32s feet.
four 746-horse power waste heat boilers
and three 3j0-horse power hand fired
boilers. The boilers are all OF the Sterling
water tube type. The reverbera tory plant
- ~ fOrN ftsr-
naces. the hearth dimensions Of which are
l9 feet In width and l02 feet in length.
with a crate area of 7x16 feet These
furnaces have maximum capacity OF
300 tons OF calcine In twentyfour hours, |
on natural draft The fuel used is Dia-
mondyllle coal. shipped from the mines
per company. The coal is dumped into |
hoppers that have five points OF dis
charge. directly over the llrebox. The |
flame after leaving the furnace passes |
through 146-horse power Stirling boiler. |
which reduces the temperature OF the |
gases going 10 the main fue to about 500
boiler horse power are obtained from
each furnace from the waste heat. The |
ashes from the furnace frebox fall into
hopper cars OF the electric tramming sys-
dump. The Stag is SKINNED from the
reverberatories twice In eight hours II
$ allowed to aecumulate until its depth
plate in the front of the fur
naces and then skinned into Stag cars
baving p capacity OF 225 cubic feet. which
electric tramming system. The matte Is
apped from the side of the furnaces
hrouEh a copper tap hole plate and
nto the converter building.
! might add that one OF the waste
'oilers referred TO above has been
'eater is; just at the rear Of the boiler
n case II proves satisfactory, the other
boilers can each be equipped with one,
Tells About Converter.
Converter Plant--The main converter
isle OF this plant is 65a40S feet. and the
asting shed is 52x22S feet. The main
onverter aisle contains five converter
tands and the converter lining depart
nent The converters used are of the
barrel type and are So inches
are electrically operated. The
main aisle is served by one sixty-ton
lectric travelling crane. The casting de-
al. artment Is served by thir,y-ton cleo
~ the matte Is received in launders di-
ectly from the reverberatory furnaces.
he end sections of these launders are
'ivoted, so that the matte may be poured
irectly into the converter opposite a re-
erberatory furnace, or the launder may
e turned so that the matte will fall into
ladle and be transferred by the crane
D any of the other converters in the
uilding. The Stag from the converters
poured into unlined cast steel ladies
nd transferred 10 the reverberatory fur |
aces by means of overhead cranes. There
re two OF these cranes. of twelve and
half tons capacity each. The blister !
opper Is poured into ladle and trans {
erred by the crane and transfer car to {
he casting department In the casting |
apartment the ladle is handled by a
rane and It's contents emptied into
1ods which completes the operation OF
pig copper. The pis copper
ontains 80 per cent copper and the gold
nd silver 1t is shipped cast. where II | G
5 further refined and the gold and silver !
attracted. I
Converter Lining-The converters arc l
ned In the main converter building, but !
ne lining material is prepared in a !
uildng "a feet by 10 feet adjacent to the
re crushing plant and receiving bins l
he lining material contains a high per- |
sntage OF silica. having gold and silver