MINEBK00378

• County: Gilpin
• Volume: 6
• Document: Inspectr
• Suffix: D

^
baring auffi- METALLURCICpL PLANT.
`" ~ ~ L1ILL- `
"~". The mill may beet be described by giving a detailed description og the opara-
~""~" ~ tion. The ore ie received on the shaft floor and all that portion too coarse to
tae t0 a dl utE
~ pass through a grizzily(6~8°x2.0 steel bars set 2" apart )go ea to a jaw crusher
~nwhich b
ucl;
~•~~•~~ "~~~~ where it is crushed~joiniag the screenings in bin underrProm which it is tran¢ned
"sic-.; to the battery bins(capacity 2U tons). IrlcFarlanea automatic feeders receive the cru
ig all the
"~~ `"'~!'.. shed ore from the battery bins and deliver it to.9 batteries of stamps where it is
sinker(broh-
,~
2`
O~s further crushed vrith G5(;A` stamps dropping G6 timer per.minute. A 7° discharge xrith
~
teiim li
~`~~ '~~, ner dies and a 50 mesh alotted~soraea are employed. Amalgamation is carried on
iged and ea-
" both in the mortar cued outside on co),perplates 4~Ox8rwith elope of 1 in G.
~e inbottom,

.
,
"~`~:°- The pulp which pauses the plates goes to 6r Gilpin county bumpera(1 to each battery)
t}1e
'el
ureter
.:'~"~ ,, where the rough concentration is carried on. From, the bwnpers the pulp passes to
'~ r1 ~ a New Standard and a Card table where a finer separation is effactod.(flote 4
tetween t}ie
..:.1 ~ rfew Standard tables would hand]e the pulp to antch better advantage as the
tablen are crowded.)
The capacity of the mill is 3$ tone per.atanrp per.24 hours or a total of 157.5 tone.
The bullion is shipped to the U.S.I3 int at Denver.and concentrates shipped to'
tP:e nmolters.
The mill handles the ore from the mine and, tlioae of its lessors and Wince its
inception noms two months ago0haa given good satisfaction.