A board fitted across a compartment in an ore washer to retain the heavy
ore and allow the light material to flow away. Nelson
a. A loading plate attached to the frame of a belt conveyor to prevent
spillage at any loading point. Jones, 1
b. A tray or partition placed in a tower, a heat exchanger, or other
processing equipment to direct or to change the direction of flow of
fluids.
c. A metal plate used to direct the flames and gas of a furnace to
different areas so that all portions of it will be heated; a deflector.
A partition in a furnace so placed as to aid the convection of heat; a
baffle plate. Fay
A pipe of sufficient length to lower the temperature of hot gases before
the gases enter a furnace. CTD
A refractory wall used to deflect gases or flames from the ware and to
provide better heat distribution in the furnace structure.
a. A paper container roughly 2.5 to 5 cm in diameter and 20 to 46 cm long,
used for placing an inert material, such as sand, clay, etc., into a
borehole for stemming or tamping. Also called a tamping bag.
b. A long tube fastened at the upper end to a pipe leading from a smelter,
and gathered and tied at the lower end. The smoke passes through the
cloth, which catches the solids. The bag is periodically untied and the
dust is shaken out. See also:baghouse
c. A cavity in coal containing gas or water. See also:bag of gas
Tomkeieff
d. Flexible pipe or hose. Also called bagging. Mason
e. S. Staff. A quantity of combustible gases suddenly given off by the
coal seam. See also:bag of foulness
f. York. A miner's term for a variety of inferior coal. Tomkeieff
An apparatus for removing dust from dust-laden air, employing cylinders of
closely woven material that permit passage of air but retain solid
particles. Syn:filter
Chamber in which exit gases from roasting, smelting, melting, or calcining
are filtered through membranes (bags) that arrest solids such as fine
particulates. See also:bag
N. of Eng. A cavity in a coal seam filled with combustible gases under a
high pressure, which, when cut into, are given off with much force.
See also:bag
Eng. A gas-filled cavity found in seams of coal. See also:bag
Originally applied to black powder loaded in bags, but now applied to a
number of explosives so packed. The bags are long, cylindrical units about
6 in (15 cm) in diameter and weighing 12-1/2 lb (5.67 kg) apiece.
Carson, 1
A method of recovering flue dust and also sublimed lead, whereby furnace
gases and fumes are passed through bags suspended in a baghouse. The
furnace gases thus are filtered, and the particles in suspension
collected. Fay
See:bajada
A dark-green variety of diopside containing iron; found near Lake Baikal,
Russia.
A thick, tarry hydrocarbon that makes up about one-third of baikerite and
from which it may be separated by alcohol. See also:baikerite
a. A waxlike mineral from the vicinity of Lake Baikal, Russia, apparently
about 60% ozocerite. Fay
b. A variety of ozocerite. See also:baikerinite
a. As used by churn drillers, to remove a liquid from a borehole by use of
a tubular container attached to a wire line. See also:bailer
b. The handle on a bucket, cage, or skip by means of which it may be
lifted or lowered. Long
c. A large clevis. Long
d. To dewater a mine with a skip or bailer.
e. As used by the diamond- and rotary-drilling industries, (1) a U-shaped
steel rod with the open ends formed into eyes fitting over two lugs
projecting from the sides of a water swivel, or (2) a U-shaped steel rod
with open ends attached to an open-sided, latch-equipped, circular collar,
that fits around a drill rod and under the base of a water swivel. Both
types of bails are designed to permit circulation of fluid through the
drill rod string while the rods are suspended on the hoist line or while
the rods are being raised or lowered a few feet with the hoisting cable.
Long
a. A long cylindrical vessel fitted with a bail at the upper end and a
flap or tongue valve at the lower extremity. It is used to remove water,
sand, and mud-laden or cuttings-laden fluids from a borehole. When fitted
with a plunger to which the bailing line is attached, it sucks the liquid
in as it is lifted and is then called a sand pump or an American pump.
Syn:bucket
b. A metal tank, or skip, with a valve in the bottom, used for dewatering
a mine.
c. See:sludger; swab.
d. In bituminous coal mining, a laborer who scoops water from drainage
ditches in a mine with a bucket and empties it into a water car, a ditch
flowing to a natural outlet or to a pumping station. Also called water
bailer. DOT
e. A cylindrical steel container with a valve at the bottom for admission
of fluid, attached to a wire line and used in cable-tool drilling for
recovering and removing water, cuttings, and mud from the bottom of a
well. See also:bail; bailing. AGI
Eng. A name formerly used for manager of a mine.
a. Removal of the cuttings from a well during cable-tool drilling or of
liquid from a well by means of a bailer. Inst. Petrol.
b. Dewatering a mine. See also:bailer
c. Removing rock dust and other material loosened in the drilling by means
of a bucket or ball. Mersereau, 2
a. A broad, continuous alluvial slope or gently inclined detrital surface
extending from the base of mountain ranges out into and around an inland
basin, formed by the lateral coalescence of a series of alluvial fans, and
having an undulating character due to the convexities of the component
fans; it occurs most commonly in semiarid and desert regions, as in the
Southwestern United States. A bajada is a surface of deposition, as
constrasted with a pediment (a surface of erosion that resembles a bajada
in surface form), and its top often merges with a pediment. Etymol: Sp.,
descent, slope. CF:alluvial slope; alluvial fan. Syn:bahada;
alluvial plain; piedmont plain. AGI
b. See:ladderway
c. Sp. Compound alluvial fans. AGI