Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1982-09-30
1984-03-13
Andrews, R. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204297R, 204286, 204288, C25D 1708
Patent
active
044366060
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an electrolysis apparatus comprising adapted to contain a vertically suspended group of electrodes consisting of anodes alternating with cathodes, these electrodes being provided at both their sides with a suspension lug, adjacent cells, for supporting the suspension lugs of the electrodes and for connecting the cells electrically, these means comprising per wall two rows of supports extending on both sides of a median element of electrical connection, each row comprising supports made of an electroconductive material alternating with supports made of an insulating material, and withdrawing it therefrom.
Such an apparatus is described in the document U.S. Pat. No. 4,028,211. In this known apparatus the support and connection means have a plane surface. Hence, when the electrodes are suspended in the cells, their lugs cannot extend beyond their supports and the handling means have no access to the under-side of the lug extremities. The handling means comprise per cathode a pair of pincers that seize the cathodes on both sides of the middle of their suspension bar, and for the anodes as a whole a clutch, the two jaws of which grip the anodes as a whole by a slot provided in their suspension lugs. Hence, these anodes have necessarily huge lugs and, consequently, a high scrap coefficient, the latter being the anode fraction that has to be remelted after electrolysis. Hence, this known apparatus has the drawbacks that the handling means have a complicated construction and that it requires the use of anodes with a high scrap coefficient.
The object of the present invention is to provide an apparatus such as defined before, avoiding the drawbacks of this known apparatus.
In the apparatus according to the invention: supports, and the extremities of their lugs.
Other details and features of the invention will appear from the description of an embodiment of the apparatus according to the invention, given hereafter as a non-restrictive example and with reference to the enclosed drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 represents a schematic plan view of an apparatus according to the invention for the electrorefining of copper.
FIG. 2 represents an enlarged and more detailed plan view of a part of three electrolytic cells, positioned side by side, of the apparatus of FIG. 1.
FIG. 3 represents an enlarged more detailed plan view of a part of a supporting and connecting device, mounted on the walls separating two adjacent cells in FIG. 2.
FIG. 4 represents a vertical section through the device of FIG. 5, made along line IV--IV of FIG. 3.
FIG. 5 represents a plan view of a component of the device of FIG. 3.
FIG. 6 represents a plan view of an other component of the device of FIG. 3.
FIG. 7 represents an enlarged and more detailed plan view of a part of a handling equipment of the apparatus of FIG. 1.
FIG. 8 represents an enlarged section through the equipment of FIG. 7, made along line VIII--VIII of FIG. 7.
FIG. 9 represents an elevational front view of the equipment of FIG. 7.
FIG. 10 represents an enlarged and more detailed view of the central part of the equipment of FIG. 9.
FIGS. 11 and 12 illustrate the operation of the equipment of FIG. 8.
FIGS. 13 and 14 illustrate the operation of an alternative for the equipment of FIG. 8.
DETAILED DESCRIPTION OF THE DRAWINGS
In the various figures the same reference notations indicate identical elements.
The apparatus shown on FIG. 1 comprises four parallel rows 1 of rectangular electrolytic cells 2, located side by side and an overhead crane 3 with carriage 4 on which a rack 5 is suspended. The overhead crane 3, provided with wheels 6 and driven by a not shown motor can move to-and-fro on rails 7 parallelly to the rows of cells 1. The carriage 4, provided with wheels 8 and driven by a not shown motor, can move to-and-fro on rails 9 fastened to crane 3, transversally to the rows of cells 1. The overhead crane 3 and the carriage 4 are of the usual type and their structure will not be further detailed.
As shown on FIG. 2, each cell
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Hens Carolus M.
Tobback Hubert J.
Viellefont Jean F.
Andrews R. L.
Chapman Terryence
Metallurgie Hoboken-Overpelt
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