FIELD: chemistry.
SUBSTANCE: invention relates to technical field of aluminium smelting and, in particular, to aluminium electrolysis cell with inert anode of vertical design. Aluminium electrolyser includes: electrolytic cell housing (1) with three insulating layers inside, in which three insulating layers include first insulating layer (4), second insulating layer (6) and third insulating layer (7); first insulating layer (4) and second insulating layer (6) are both fixed; first insulating layer (4) comprises an outward opening channel, wherein the channel outlet is directed upward; and third insulating layer (7) is replaceable and movable; heating device (5) located in the channel of the first insulating layer (4) and providing electrolytic cell temperature control; graphite base (13) located at the bottom of the inner cavity of electrolytic cell (1) housing and having a mounting slot on the bottom of the graphite base, wherein side walls of second insulating layer (6) and bottom of graphite base (13) are attached to third insulating layer (7), forming electrolysis cell, wherein the electrolysis cell is designed to be filled with molten electrolyte and liquid aluminium; cathodes (16), wherein cathode (16) is made in the form of a vertical plate vertically installed in the mounting slot and connected to graphite base (13) by means of a threaded connection by means of graphite bolts (14), wherein contact surfaces between graphite base (13), graphite bolts (14) and cathode (16) are coated with cathode paste (15); on one side of cathode (16) there is anode (17), wherein anode (17) and cathode (16) are staggered; and anode (17) is suspended above electrolytic cell (1) housing by means of connection with guide rod (11); current of anode (17) passes through guide rod (11) and enters inside of electrolysis cell (1) from upper part of electrolytic cell; and cathode (16) current passes through graphite base (13) and leaves electrolytic cell (1) housing through the metal electric rod (12) connected to graphite base (13).
EFFECT: improved stability and operability of the electrolytic cell, as well as increased service life.
10 cl, 7 dwg
