Report of the Bureau of Mines of the Department of Internal Affairs of ...

xlvi INTRODUCTORY TO Off. Doe.
Inside.
One timberraan, 10 hours, at $2.19, $2 19
Two timbermen less, 20 hours, at $1.88, 3 76
|5 95
2 Shifts.
Ill 90
Timber used by two shifts of men, 18 00
29 91)
Total outside and inside labor, etc., dispensed with daily by
flushing, $33 90
Daily inside and outside expense of flushing, 19 UO
Net daily saving by flushing,
$14 JO
Black Diamond Culm Plant—Cost.
Cost of engine, crusher rolls, machinery, elevators and ~]
conveyors, ^ $4,200 00
Erection and construction of same,
J
Two pumps for supplying fresh water for culm flushing,
]
Steam and column pipes for pump, 1
Culm pipe from plant to shaft head,
j
Culm pipe from breaker to shaft head,
Culm pipe inside mines,
5,624 feet of 4-inch pipe bank culm line, $1,068.56,
524 feet of 4-inch pipe breaker culm line, (
2,400 feet of 3-inch pipe breaker culm line,$411.56, J
^^^
^^^
(^ 1 480 1'^
'
$6,280 12
Culm Flushed Daily (7 Flours).
Breaker culm
• 147
:
tons.
Bank culm, 140 tons.
hill
287 tons.
Ratio of Water to Culm.
1| lbs. to If lbs. of water to 1 lb. culm, to flush level and down
places.
3 lbs. to 6 lbs. of water to 1 lb. culm, to flush up hill, according lo
height, 10 to
100 feet above level of shaft bottom.
Average Daily Inside Ex[)ense.
T^abor, changing and renewing pipes, breaker culm,. . $1 82
Bank culm, ... 3 64
$5 46