Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1979-09-07
1982-05-18
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
423224, 423235, 423245, 423246, B01D 5334
Patent
active
043305105
ABSTRACT:
An apparatus and method for chemically altering and scrubbing the noxious constituents from foundry core manufacturing and arc welding operations is disclosed.
An upstanding closed container is provided and a gas washing liquid is disposed within the container to a predetermined level. A horizontal baffle is mounted stationarily within the container at an elevation spaced above the level of the gas washing liquid therein and spaced peripheral portions of the baffle are spaced inwardly of the opposing inner surface of the container. A gas drive pipe extends into the container, downwardly past the baffle, and opens downwardly in a central lower portion of the container, below the baffle and near the bottom of the liquid. The container includes a top cover and an outlet duct is provided which opens outwardly of the container through a central portion of the cover. The gases are pumped into the drive pipe to achieve a critical velocity at the exit of the drive pipe of about 2,300-20,000 linear feet per minute.
Entering the liquid in a substantially vertical downward direction within the critical velocity range, small gas-containing bubbles, on the order of 1/8-3/8 inches in diameter, are formed as the gas stream rises, which bubbles impact against the horizontal baffle. The high velocity gases impart sufficient kinetic energy to the system to enable the necessary chemical reactions and scrubbing to proceed.
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Schauer Dennis J.
Schauer John M.
Jacobson Harvey B.
Thomas Earl C.
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