数值模拟技术在电解槽节能减排中的应用

The application of numerical simulation to energy saving and emission reduction reformation of aluminum reduction cells

基于数值模拟软件ANSYS和FLUENT开发的新式阴极钢棒结构和等量吸风烟道技术在某铝厂SY240大修电解槽进行应用,将电解槽直流电耗初步降至12430kWh/t-Al,较改造前降低了670 kWh/t-Al;改造后的烟道集气量分布趋于均匀,在单槽排烟量减少28%,且能取得较高的密闭效率,数值模拟技术为铝电解生产节能降耗提供了坚实的技术保证。

Based on ANSYS and FLUENT numerical simulation software, the new type of steel collector and equable suction technologies have been suecessfully developed. In this paper application of two technologies to SY240 cells in the smelter are introduced, which the D. C consumption is reduced to 12430kWh/t - Al, the distribution of collected fume in the reformed duct tends to uniform, 28% fume exhausting from the cell is reduced, and the higher airtight efficiency has gained. The technology of numerical simulation can provide technical guarantee for energy saving and emission reduction of aluminum reduction production.