针对电解预焙槽气体焙烧法启动这一新的工艺方法 ,利用电解槽槽底导热的三维数学模型 ,研究不同加热制度下 ,升温速度、阴极内部温差、供热强度等随时间的变化 ;讨论了不同加热制度下的加热时间、燃料消耗和槽内温度分布的变化 ,并对各种加热制度进行了比较优化得出可供实施的加热制度 ,给出了一种最优加热制度。该研究为制定电解槽气体焙烧启动的加热制度提供了理论依据。 Aiming at the new technology of gas roasting method in electrolytic prebake cell, the three-dimensional mathematical model of heat conduction in the bottom of electrolytic cell was used to study the changes of temperature rise rate, internal temperature difference and heating intensity under different heating regimes over time. The heating time, the fuel consumption and the temperature distribution in the tank under different heating regimes were compared. The heating regimes were compared and optimized to obtain the heating regimes available for implementation, and an optimal heating regime was given. The research provides a theoretical basis for making the heating system of gas roasting in electrolyzer.