Cleaning and liquid contact with solids – Processes – Longitudinally traveling work of bar – strip – strand – sheet...
Patent
1993-07-08
1994-10-04
Stinson, Frankie L.
Cleaning and liquid contact with solids
Processes
Longitudinally traveling work of bar, strip, strand, sheet...
134 18, 134 57R, 134 58R, 134181, 134122R, 404 76, 118303, 239559, B08B 302
Patent
active
053522974
ABSTRACT:
Spray apparatus for applying a fixative liquid chemical to freshly loaded railway coal cars includes a pivoting boom mounted atop a column. The column is both rotatable, to enable avoiding encroaching on a railway right of way, and vertically adjustable, to accommodate cars loaded to different heights. Boom pivot and column vertical movement are powered. Three rows of spray nozzles are supported from the boom. Each nozzle has its own valve. A first row of nozzles sprays the frontal, inclined surface of heaped coal. A second row sprays the main body of heaped coal, and a third row sprays the rearward, inclined surface. Photoresponsive sensors initiate spray signals, which are conditioned by timers. Progress of a railway car past these sensors initiates spray signals, which are suitably delayed, then discontinued, by timers. Total spray time for any one car is limited by an additional timer. Train speed is gauged by an observer, after which timing functions are determined to spray each car appropriately. A combination of boom pivoting and column vertical adjustment assures that the nozzles are centered over the railway car. The column comprises concentric members fitted at close tolerance to reduce cumulative play which would otherwise throw the nozzles off center. Method of use including a preferred sequence of operation is included.
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Litman Richard C.
Stinson Frankie L.
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