Method and means for application of anode covering material (ACM) in an electrolysis cell of hall-heroult type for aluminium production

Method and means for application of anode covering material (ACM) in an electrolysis cell of hall-heroult type for aluminium production

The present invention concerns a method and means for application of anode covering material (ACM) in an electrolysis cell for aluminium production where the cell being of Hall-Heroult type with prebaked anodes. The cell comprises a cathode pot with a rectangular footprint and a superstructure with...

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Hauptverfasser: Teigen, Per Johnny, Høines, Jan Frode, Dyrøy, Are, Magnesen, Jostein, Chmelar, Juraj, Karlsen, Morten, Jacobsen, Odd Erik
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Sprache:eng
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APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
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creator Teigen, Per Johnny
Høines, Jan Frode
Dyrøy, Are
Magnesen, Jostein
Chmelar, Juraj
Karlsen, Morten
Jacobsen, Odd Erik
description The present invention concerns a method and means for application of anode covering material (ACM) in an electrolysis cell for aluminium production where the cell being of Hall-Heroult type with prebaked anodes. The cell comprises a cathode pot with a rectangular footprint and a superstructure with a gas collecting hood that lays onto the top of the cathode pot. A floor construction (29) at least substantially surrounds the cell at a level below the top of the cathode pot and ventilation openings (28) provided with grates are arranged in the floor in the close vicinity to the cell. The superstructure's hood is provided with removable lids (20) that are removed for giving acess to the cell's anodes (21) through openings. ACM is applied via a feed tube (1, 1') to cover the anodes (21) and the deposit of ACM is supported by a shuttering (40). The shuttering (40) comprises a portion that rest onto the top of the cathode pot in the bottom sector of the opening, and further having a shuttering plate (41) that is tilted towards the anode(s) (21) at an angle (a), thus restricing ACM from flowing out of said opening during application of it. The shuttering plate can have a flap shuttering plate (46) attached to its upper portion. The invention also comprises a movable applicator plate (3) arranged to the ACM feed tube (1') and a horizontal plate (50) that covers the ventilation openings (28).
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subjects APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
title Method and means for application of anode covering material (ACM) in an electrolysis cell of hall-heroult type for aluminium production
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