Device for holding anode assemblies during electrical preheating of Hall-Héroult cells, and process for preheating Hall-Héroult cells using such device

摘要

A holding device for holding anode assemblies during electrical preheating of hall-Heroult cells, and associated process for preheating said cells using such device is defined.  This holding device (Figure 3, 101) is used in at least one anode (figure 15,144) The anode rod (Figure 15, 144) The anode assembly (14) is part of an electrolytic cell (1), suitable for the Hall-Heroult electrolysis process.  The holding device (101) comprises; a body (2) provided with the handling means (22), adapted to cooperative with a lifting device.  At least one flexible mechanical holder (3) which may comprise sheets of parallel aluminium, is adapted to cooperate with a respective anode assembly.  The flexible mechanical holder, with an upper end (30') permanently attached to said body, a flexible zone (3C) and a lower end (figure 7, 30"), means (5) for a removable fixation of said anode rod (Figure 15, 141) on said holder (3). Blocking means (figure 11,42) may also be provided.