The crystallization or precipitation of salts from normal aqueous
solutions; the formation of an evaporite. AGI
Derived from or modified by substances in a liquid condition; said of the
genesis of ores and other minerals; opposite of pneumatogenic.
CF:hydatopneumatogenic
Said of a rock or mineral deposit formed by both aqueous and gaseous
agents. CF:hydatogenic; pneumatogenic. AGI
A mine car retarder, based on the principle of the dashpot, consists of
individual braking units that can be fastened to the rails at spacings
according to need over any desired distance. The unit offers no resistance
to motion at very low car speeds, but as the speed increases, the braking
force exerted upon it increases accordingly, following the usual oil
dashpot characteristic. See also:dashpot
See:gibbsite
a. A compound or complex ion formed by the union of water with some other
substance and represented as actually containing water.
Webster 3rd
b. A hydroxide, such as calcium hydrate (hydrated lime).
Webster 3rd
A dry powder, Ca(OH)2 , obtained by hydrating quicklime.
a. The chemical combination of water with another substance. AGI
b. The process of adding water, or the elements of water (oxygen and
hydrogen combined in the hydroxyl radical), to any substance.
a. Conveyed, operated, effected, or moved by means of water or other
fluids, such as a hydraulic dredge, using a centrifugal pump to draw
sediments from a river channel. AGI
b. Pertaining to a fluid in motion, or to movement or action caused by
water. AGI
c. Hardening or setting under water; e.g., hydraulic lime or hydraulic
cement. AGI
The mechanical loosening and removal of weakly resistant material solely
by the pressure and hydraulic force of flowing water, as by a stream
surging into rock cracks or impinging against the bank on the outside of a
bend, or by a jet of water impacting a gravel bank. AGI
Fracture using a hydraulic cartridge, a ram-operated device used to split
coal. Pryor, 3
a. A device used in mining to split coal, rock, etc., having 8 to 12 small
hydraulic rams in the sides of a steel cylinder. Fay
b. See:coal burster
A cement that can set and harden under water.
A borehole-cementing operation using a downhole cement injector.
Long
A steel face support structure consisting of from one to four hydraulic
legs or uprights. The four-leg chock is mounted in a strong fabricated
steel frame with a large head and base plate. It is controlled by a
central valve system that operates either on the four legs simultaneously
or on the front and rear pairs separately. See also:chock;
yielding prop; self-advancing supports. Nelson
A diamond-drill rod chuck having jaws with clamping and unclamping
movements actuated hydraulically instead of by hand-turned setscrews.
Long
A method used to drill a borehole wherein water or a mud-laden liquid is
circulated through the drill string during drilling.
See also:diamond drill
Tank into which ore pulp is fed steadily and subjected to the sorting
effect of a stream of hydraulic water that rises at controlled rate.
Heavier or coarser equal settling particles gravitate down and away via a
bottom discharge, while lighter ones are carried up and out.
Syn:hydrosizer
Use of flowing water or slow settling fluids based on water mixed with
suitable heavy minerals to convey rock, coal, etc., in pipes.
Pryor, 3
A type of conveyor in which water jets form the conveying medium for bulk
materials through pipes or troughs.
As applied to a diamond drill, a syn. for feed cylinder. Long