Irkutsk National Research Technical University, Irkutsk, Russia:

I. A. Sysoev, Leading Researcher, Investigation Technological Center in Physical and Technical Institute
V. V. Kondratev, Head of Investigation Technological Center in Physical and Technical Institute
I. V. Kolmogortsev, Programmer, Scientific-Education Center “Autodesk”
T. I. Zimina, Assistant of a Chair of Industrial Processes Management, e-mail: ziminati@istu.edu

The technology for aluminium electrolysis is constantly being perfected in the sense of increasing the unity capacity of electrolysers. The world’s leading aluminium companies strive to use powerful electrolysers with baked anodes that work at current strengths higher than 300 kA, as their application enables a higher ecological and economical efficiency of new factories. Keeping the technology for electrolysis stable at an increased current strength requires an effective removal of heat from construction elements, including the removal with technological waste gases. It is reasonable to cool the electrolytic gases before cleaning if we are striving to lower the physical level of the cleaned gases, which also lowers the exploitation costs of gas cleaning installations. The article states the arguments in favour of electrolytic cooling of waste gases that are generated during the production of aluminium. It describes the advantages and disadvantages of different processes for cooling of technological gases. A mathematical model was developed in the application program package ANSYS, whilst constructive characteristics of an experimental shelland-tube heat exchanging apparatus are also presented. The future plan is to perform experimental-industrial testing of a heat exchanging apparatus for recuperation of heat energy of the gases that are generated during various exploitation regimes in conditions of the current production.

The investigations were carried out with the support of the Grant of President of Russian Federation МК-4752.2016.8.

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