|
Mining
Glossary
A
B C
D E F
G H
I J
K L
M N
O P
Q R
S T
U V
W X Y
Z
H
Haulage - The drawing or conveying,
in cars or otherwise, or movement of men, supplies, ore and waste
both underground and on the surface.
Haulageway - The gangway, entry, or tunnel through
which loaded or empty mine cars are hauled by animal or mechanical
power.
Head House - A covered timber framing at the
top of a shaft, into which the shaft guides are continued that
carry the cage or elevator. The term is sometimes applied to the
structure containing the hoisting engine, boilers, and other machinery,
in addition to the actual hoisting cage, etc.
Heap Leaching - A process used for the recovery
of copper from weathered ore and material from mine dumps. This
process can also be applied to the sodium sulfide leaching of
mercury ores.
Highwall - The unexcavated face of exposed overburden
and coal or ore in an opencast mine or the face or bank on the
uphill side of a contour strip mine excavation.
Hoist - A power-driven windlass
for raising ore, rock or other material from a mine and for lowering
or raising men and material. Also called hoister.
|