Wire pickling method and apparatus

Details Wire pickling method and apparatus Wire pickling method and apparatus

1989-03-21

1990-08-21

Pal, Asok

Cleaning and liquid contact with solids

Processes

Longitudinally traveling work of bar, strip, strand, sheet...

134122R, B08B 102

Patent

active

049503332

ABSTRACT:
Novel pickling method and apparatus are described. A plurality of parallel side-by-side laterally-spaced wires is passed horizontally from end to end of an enclosed pickling zone and are countercurrently contacted by a wave of hot hydrochloric acid pickling liquor formed by a hydraulic jump and passing through the pickling zone submerging the wires. The pickling zone is enclosed at the sides and top and bottom by solid walls and at the ends by water curtains which prevent the egress of fumes of hydrochloric acid. The pickling zone is followed by a washing zone in the same enclosure as the pickling zone comprising further water curtains and wiper bars. The side walls of the enclosure include depending side walls from an upper enclosure portion and upwardly-opening channels at the upper extremity of side walls of a lower portion into which the depending side walls extend below water baths located in the channels to seal the side walls but permit wires to be restrung.

REFERENCES:
patent: 2536208 (1951-01-01), Nystrom
patent: 2665699 (1954-01-01), Pendleton
patent: 3445284 (1969-05-01), Robinson
patent: 4592784 (1986-06-01), Ghizzi
"Fundamentals of Fluid Mechanics", Gerhart and Gross, Addison-Wesley, 1985, pp. 792-804.

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