Abstract: This disclosure relates to non-ferrous metallurgy and electrolytic production of Aluminium for lining a cathode assembly of an electrolytic cell. The present method includes laying materials while simultaneously distributing same over the surface of a base and levelling them at a height measured from the plane of the top edge of the shell of the cathode assembly of the electrolytic cell by gradually moving a device for installing unformed lining materials along a longitudinal axis of the cathode of the Aluminium electrolytic cell. Said device is configured in the form of a bridge equipped with a mechanical drive for movement. The bridge has guides on which a frame is mounted for vertical movement, said frame having cassettes provided with gates with a mechanical drive. The technical result is reduced labor costs, healthier working conditions for operatives, and better quality installation of the base of an electrolytic cell.

Abstract: The method includes: filling and levelling of a heat insulation layer on a cathode shell bottom; its coverage from above with a refractory layer; installation of the cathode bottom and side blocks with subsequent sealing of joints or seams between them with cold ramming paste and further monolithic baking; wherein: the levelled heat insulation layer is covered with a lower barrier layer of graphite foil placed between layers of fiberboard sheets; at least one refractory layer is formed; an upper barrier layer of graphite foil is placed between the layers of fiberboard sheets; all formed layers are simultaneously compacted to achieve alignment of the uppermost layer surface with a lower edge plane of the ports in the cathode shell; and the refractory layer of 20-30 mm thick is formed above the upper layer, according to some embodiments.

Abstract: This disclosure relates to non-ferrous metallurgy and electrolytic production of Aluminium for lining a cathode assembly of an electrolytic cell. The present method includes laying materials while simultaneously distributing same over the surface of a base and levelling them at a height measured from the plane of the top edge of the shell of the cathode assembly of the electrolytic cell by gradually moving a device for installing unformed lining materials along a longitudinal axis of the cathode of the Aluminium electrolytic cell. Said device is configured in the form of a bridge equipped with a mechanical drive for movement. The bridge has guides on which a frame is mounted for vertical movement, said frame having cassettes provided with gates with a mechanical drive. The technical result is reduced labor costs, healthier working conditions for operatives, and better quality installation of the base of an electrolytic cell.

Abstract: The invention relates to non-ferrous metallurgy and the electrolytic production of aluminium, and can be used for lining the cathode assembly of an electrolytic cell. The present method consists in laying materials while simultaneously distributing same over the surface of a base and levelling them at a height measured from the plane of the top edge of the shell of the cathode assembly of the electrolytic cell by gradually moving a device for installing unformed lining materials along the longitudinal axis of the cathode of the aluminium electrolytic cell. Said device is configured in the form of a bridge equipped with a mechanical drive for movement. The bridge has guides on which a frame is mounted for vertical movement, said frame having cassettes provided with gates with a mechanical drive. The technical result is reduced labour costs, healthier working conditions for operatives, and better quality installation of the base of an electrolytic cell.

Abstract: The invention relates to non-ferrous metallurgy and the electrolytic production of aluminium, and can be used for lining the cathode assembly of an electrolytic cell. The present method consists in laying materials while simultaneously distributing same over the surface of a base and levelling them at a height measured from the plane of the top edge of the shell of the cathode assembly of the electrolytic cell by gradually moving a device for installing unformed lining materials along the longitudinal axis of the cathode of the aluminium electrolytic cell. Said device is configured in the form of a bridge equipped with a mechanical drive for movement. The bridge has guides on which a frame is mounted for vertical movement, said frame having cassettes provided with gates with a mechanical drive. The technical result is reduced labour costs, healthier working conditions for operatives, and better quality installation of the base of an electrolytic cell.

Abstract: The present invention relates to nonferrous metallurgy, in particular to the process equipment for electrolytic production of primary aluminum, namely to methods for lining cathode assemblies of reduction cells. A method for lining a cathode of a reduction cell for production of aluminum includes filling a cathode device shell with a thermal insulation layer and leveling said layer; filling, leveling and compacting a refractory layer; installing bottom and side blocks followed by sealing joints therebetween with a cold ramming paste. Prior to filling a shell bottom with the thermal insulation layer, a layer of fine carbonized particles is formed. The inventive method for lining a cathode assembly of a reduction cell for production of primary aluminum allows to reduce the cost of lining materials and energy consumption for reduction cell operation by means of improved heat resistance of a base and to increase the service life of reduction cells.

Abstract: The present invention relates to nonferrous metallurgy, in particular to the process equipment for electrolytic production of primary aluminum, namely to methods for lining cathode assemblies of reduction cells. The method for lining a cathode assembly of a reduction cell for production of aluminum comprises filling a cathode assembly shell with a thermal insulation layer, forming a fire-resistant layer followed by the compaction of layers, installing bottom and side blocks followed by sealing joints therebetween with a cold ramming paste. According to the first embodiment of the present invention, a resilient element made of a dense organic substance is placed between the thermal insulation layer and the fire-resistant layer. According to the second embodiment of the present invention, a flexible graphite foil is placed between the thermal insulation layer and the fire-resistant layer, and under the flexible graphite foil, a resilient element made of a dense organic substance is placed.

Abstract: The present disclosure relates to aluminum production, more particularly, to a method of breaking an electrolyte crust in reduction cells of all types. According to a disclosed method for breaking electrolyte crust by means of separation cutting in a reduction cell for production of aluminum, the crust is cut and broken by means of the thermal melting of a crust material with a high-speed high-temperature concentrated flow of thermal plasma jet heat energy, for which a directed thermal plasma jet is generated and moved above the electrolyte crust along a predetermined path, a formed molten material is continuously removed from a zone of the thermal plasma jet impact to create in the electrolyte crust a slit with the thermal plasma jet, wherein the slit is enough for of crust continuous separation cutting and breaking.

Abstract: The present invention relates to nonferrous metallurgy, in particular to the electrolytic production of aluminum, more particularly to a structure of a cathode assembly of a reduction cell for production of aluminum. A lining of a cathode assembly of an aluminum reduction cell is provided which comprises a thermal insulation layer and a fire-resistant layer consisting of no less than two sub-layers, wherein the porosity of the thermal insulation layer and the fire-resistant layer increases from an upper sub-layer to a bottom sub-layer and the thickness ratio of the fire-resistant layer and the thermal insulation layer is no less than ?. Also, the present invention provides a method for lining a cathode assembly of a reduction cell and a reduction cell having the claimed cathode assembly lining.

Abstract: The busbar system consists of an anode part designed to connect anodes in a cell line by means of anode rods, a cathode part composed of cathode rods with flexible strap stacks and designed to connect to the anode part of the next cell in a cell line by means of a bus module that comprises main (collecting) cathode busbars on the upstream and downstream sides of the cathode shell of the cell, connecting busbars located under the cell bottom, at least one anode riser on the upstream side and at least one anode riser on the downstream side of the cell. The busbar system is designed to supply current to two similar cell lines that are composed of one row of electrolysis (reduction) cells, such lines are designed to be independent from each other in terms of power supply and to have opposite current directions, and comprises correction (compensation) busbars.

Abstract: The present invention relates to nonferrous metallurgy, in particular to the process equipment for electrolytic production of primary aluminum, namely to methods for lining cathode assemblies of reduction cells. A method for lining a cathode of a reduction cell for production of aluminum includes filling a cathode device shell with a thermal insulation layer and leveling said layer; filling, leveling and compacting a refractory layer; installing bottom and side blocks followed by sealing joints therebetween with a cold ramming paste. Prior to filling a shell bottom with the thermal insulation layer, a layer of fine carbonized particles is formed. The inventive method for lining a cathode assembly of a reduction cell for production of primary aluminum allows to reduce the cost of lining materials and energy consumption for reduction cell operation by means of improved heat resistance of a base and to increase the service life of reduction cells.

Abstract: The present invention relates to nonferrous metallurgy, in particular to the electrolytic production of aluminum, more particularly to a structure of a cathode assembly of a reduction cell for production of aluminum. A lining of a cathode assembly of an aluminum reduction cell is provided which comprises a thermal insulation layer and a fire-resistant layer consisting of no less than two sub-layers, wherein the porosity of the thermal insulation layer and the fire-resistant layer increases from an upper sub-layer to a bottom sub-layer and the thickness ratio of the fire-resistant layer and the thermal insulation layer is no less than 1/3. Also, the present invention provides a method for lining a cathode assembly of a reduction cell and a reduction cell having the claimed cathode assembly lining.

Abstract: The present invention relates to nonferrous metallurgy, in particular to the process equipment for electrolytic production of primary aluminum, namely to methods for lining cathode assemblies of reduction cells. The method for lining a cathode assembly of a reduction cell for production of aluminum comprises filling a cathode assembly shell with a thermal insulation layer, forming a fire-resistant layer followed by the compaction of layers, installing bottom and side blocks followed by sealing joints therebetween with a cold ramming paste. According to the first embodiment of the present invention, a resilient element made of a dense organic substance is placed between the thermal insulation layer and the fire-resistant layer. According to the second embodiment of the present invention, a flexible graphite foil is placed between the thermal insulation layer and the fire-resistant layer, and under the flexible graphite foil, a resilient element made of a dense organic substance is placed.