FIELD: nonferrous metallurgy, heating of lining of cathode enclosure and anode and firing of interunit seams of carbon bottom of electrolyzer. SUBSTANCE: gear presents tubular body in the form of knee which upper part carries injector. Air line is joined to lower horizontal part uniaxially to body for re-distribution of heat over bottom and burning of carbonization gases. Inner diameter of outlet hole of body is equal to 0.25-40.0 depth of shaft of electrolyzer and is 8-33 times bigger than inner diameter if air line. EFFECT: increased functional efficiency of gear. 1 dwg
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