Abstract:
A method of peeling the electrodeposited metal plate off the cathode base plate by inserting a wedge downward in the fine void formed previously between said cathode base plate and electrodeposited metal plate by hammering the surface of the upper edge of said electrodeposited metal plate, wherein a low pressure fluid is jetted from the vicinity of the tip of the wedge toward said fine void prior to insertion of said wedge therein.
Abstract:
Apparatus for stripping deposited metal from a cathode plate in an electrolytic metal winning process includes a plurality of operating stations. In one operating station, a cathode holder pivotally mounted on the cathode plate is pivoted from a position disposed over an edge portion of the cathode plate to a position exposing the edge portion. In another station, a preliminary stripping means having scraper elements is insertable between the cathode plate and the deposited metal at the edge portion to partially separate the deposited metal from the cathode plate. At a further station, a main stripping means having a scraper blade is insertable between the partially separated cathode plate and deposited metal and movable relative to the cathode plate and deposited metal to effect complete separation of the deposited metal from the cathode plate.
Abstract:
An apparatus for stripping or peeling metallic layers, especially electro deposited metal in the form of sheets, from sheet-like metallic supports, e.g. an electrodeposition cathode. The apparatus comprises a conveyor arrangement for advancing the sheets in an upright orientation to a tower in which blades are displacable to shed to electrodeposited layers from the cathode. A guard or masking member hinged to each cathode is swung aside by a moving device to reveal a setback lateral edge of the metal layers at the top of the cathode. A wedge arrangement is passed between the electrodeposited layer and the cathode horizontally to lift this edge to accommodate the peeling blades between the electrodeposited layer and the cathode.
Abstract:
Disclosed are solutions for the recovery of elemental metals at industrial scales without smelting including, for example, the recovery of near-pure lead from recycled LABs via specialized electrolytic processing. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead oxides), and especially applicable for solid-state electrolysis of mixtures comprising lead paste, electrolyte, and supplemental chemicals. With particular regard to recovering near-pure lead during LAB recycling, solid-state electrolysis of mixtures comprising impure lead (e.g., lead paste) is made possible by electrolytic processing using supplemental chemicals, and made scalable to industrial levels via utilization of a vertically-arranged series of horizontal bipolar cathodes in an electrolyzer assembly.
Abstract:
An apparatus for stripping metal (12, 14) deposited on a cathode plate (16), comprises a first robotic arm (46) carrying a first stripping apparatus (40), the first stripping apparatus having a first gripping apparatus (62, 63) to grip the cathode plate such that the first robotic arm operates to lift the cathode plate out of the stripping station following stripping of the metal sheets from the cathode plate. A second robotic arm (48) carrying a second stripping apparatus (42) is located on a second side of the cathode plate, the second stripping apparatus having a second gripping apparatus (76, 77) for gripping one or both of the first sheet of metal (12) and the second sheet of metal (14). The second robotic arm can be operated to move the first sheet of metal and the second sheet of metal to a metal storage region following stripping from the cathode plate (16). The metal is stripped from the cathode plate without breaking the bridge of metal that interconnects the first sheet of metal and the second sheet of metal.
Abstract:
An apparatus for electrochemical ammunition disposal and material recovery, the apparatus comprises: a vessel for holding an acidic aqueous solution: an anode at least partially immersed in the acidic aqueous solution: physically separated from the anode, a movable cathode at least partially immersed in the aqueous solution, wherein the movable cathode in a first position has a first surface which is not-immersed in the aqueous solution: a cleaning implement to remove material on the first surface of the cathode; and a power supply for applying a voltage between the anode and the cathode.