Design improvement of alumina feeding system in aluminum electrolytic cells with baked anodes

IF 5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Thermal Sciences Pub Date : 2025-10-10 DOI:10.1016/j.ijthermalsci.2025.110379

Ilya Ivanovich Puzanov , Nina Valeryevna Klimkina , Aleksandr Innokentyevich Bezrukikh , Igor Lazarevich Konstantinov , Nataliya Viktorovna Belousova , Marina Vladimirovna Voroshilova , Evgeniy Vladimirovich Ivanov

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Abstract

The article presents the results of investigation on design improvement of the automatic alumina feed system in aluminum electrolytic cells with baked anodes. To achieve this goal, an innovative punch was developed to destroy the crust on the aluminum melt, the design of which includes a thermosyphon. Cooling the tip due to the thermosyphon eliminates the adhesion of raw materials to it, which improves the supply of alumina to the electrolyte, eliminates the need for complex cooling systems, reduces the likelihood of mechanical problems and increases the reliability of the equipment. Evaluation of the efficiency of the innovative punch in the production conditions of a metallurgical enterprise showed that the thermosyphon effectively dissipates heat, preventing raw materials from adhering to it. It was also determined that for the punch to work effectively, the ambient temperature should not exceed 24 °C, and the temperature of the exhaust gases should not be higher than 175 °C.

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焙烤阳极铝电解槽氧化铝加料系统的设计改进

本文介绍了焙烧阳极铝电解槽氧化铝自动进料系统设计改进的研究结果。为了实现这一目标，开发了一种创新的冲床来破坏铝熔体上的外壳，其设计包括一个热虹吸。由于热虹吸冷却尖端，消除了原材料对其的粘附，从而改善了氧化铝对电解质的供应，消除了对复杂冷却系统的需求，减少了机械问题的可能性，并提高了设备的可靠性。在某冶金企业的生产条件下，对创新冲床的效率进行了评价，结果表明，热虹吸有效地散热，防止了原料粘附。还确定了冲床要有效工作，环境温度不应超过24℃，废气温度不应高于175℃。

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来源期刊

International Journal of Thermal Sciences 工程技术-工程：机械

CiteScore

8.10

自引率

11.10%

发文量

531

审稿时长

55 days

期刊介绍： The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review. The fundamental subjects considered within the scope of the journal are: * Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow * Forced, natural or mixed convection in reactive or non-reactive media * Single or multi–phase fluid flow with or without phase change * Near–and far–field radiative heat transfer * Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...) * Multiscale modelling The applied research topics include: * Heat exchangers, heat pipes, cooling processes * Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries) * Nano–and micro–technology for energy, space, biosystems and devices * Heat transport analysis in advanced systems * Impact of energy–related processes on environment, and emerging energy systems The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.