en.Wedoany.com Reported - Baiyinhua Aluminum & Electric Co., Ltd., a subsidiary of State Power Investment Corporation (SPIC) Inner Mongolia Company, has recently completed a specialized technical breakthrough in anode guide rod sealing positioning technology. The company adopted an improved solution using dovetail nails to position the guide rod sealing frame, replacing the traditional welding fixation process. This technical modification significantly enhances the sealing performance of aluminum electrolytic cells without requiring large-scale equipment upgrades or hot work operations, effectively reducing fugitive emissions of flue gas, and achieving synergistic improvements in environmental protection, safety, and economic benefits.
Located in the Baiyinhua Industrial Park, West Ujimqin Banner, Xilingol League, Inner Mongolia Autonomous Region, China, Baiyinhua Aluminum & Electric Co., Ltd. was established in 2018. It is a wholly-owned subsidiary of SPIC Inner Mongolia Company, primarily engaged in electrolytic aluminum production and electricity sales, with an annual output of approximately 800,000 tons of electrolytic aluminum. During the electrolytic aluminum production process, the sealing between the anode guide rod and the horizontal cover plate of the electrolytic cell directly affects flue gas collection efficiency and the workshop working environment. Traditional sealing frames are mostly fixed by welding, which involves long construction periods, requires hot work operations, and poses difficulties in later maintenance. Moreover, the sealing effect deteriorates over time, easily leading to flue gas leakage.
To address these pain points, Baiyinhua Aluminum & Electric organized technical experts and frontline operators to conduct specialized research. Through multiple rounds of solution comparison, discussion, simulation, and on-site testing, the dovetail nail positioning solution was ultimately determined. This solution utilizes the existing gap between the anode and the horizontal cover for positioning and installation, precisely fixing the guide rod sealing frame with dovetail nails. It requires no modification of existing production equipment and eliminates the need for hot work throughout the process, thereby avoiding safety risks associated with technical modification construction from the source. Compared with traditional welding processes, the new process is easier to operate, more efficient in construction, and requires less labor, allowing for rapid installation and commissioning of the sealing frame without disrupting normal production operations.
After the technical modification, the overall sealing performance of the electrolytic cells at Baiyinhua Aluminum & Electric has been significantly improved, effectively controlling fugitive flue gas emissions in the workshop. The production working environment has been continuously enhanced, and the company's environmental governance capabilities have steadily strengthened. At the same time, the new process simplifies construction procedures, reduces material and labor costs, further consolidates the foundation of safety production management, and achieves a win-win situation in environmental, safety, and economic benefits. This process optimization provides a reference technical pathway for controlling fugitive emissions in the electrolytic aluminum industry.
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