Sealing exhaust device for intermediate frequency furnace

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By designing a sealing and exhaust device for medium-frequency furnaces, the opening and closing of the sealing cover and exhaust hood are automatically controlled, solving the problem of sealing the furnace mouth of medium-frequency furnaces, realizing the automatic extraction of high-temperature flue gas, and improving operational safety and efficiency.

CN224552118UActive Publication Date: 2026-07-24YUNNAN RUNXIN ALUMINUM

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: YUNNAN RUNXIN ALUMINUM
Filing Date: 2025-08-29
Publication Date: 2026-07-24

AI Technical Summary

Technical Problem

During the smelting process, the furnace mouth sealing of the medium-frequency furnace is difficult to control automatically, which leads to frequent exposure of workers to high-temperature flue gas, posing occupational health risks and resulting in low operating efficiency.

Method used

A sealing and exhaust device for a medium-frequency furnace was designed, including a sealing cover, an exhaust hood, a gas guide pipe, and a driving device. The opening and closing of the sealing cover and the exhaust hood are automatically controlled by a negative pressure device to achieve the extraction and sealing of high-temperature flue gas.

Benefits of technology

It achieves automated sealing of the inlet of the medium-frequency furnace and extraction of high-temperature flue gas, reducing the risk of workers being exposed to high-temperature flue gas and improving operational efficiency and safety.

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Abstract

The utility model relates to furnace body seal, specifically disclose a kind of medium frequency furnace sealing exhaust device, including the sealing cover of cover being located at the upper end of furnace mouth, the exhaust hood being located at the upper side of sealing cover, with the air pipe connected with exhaust hood, and with the driving device to drive the rotation of air pipe;Air pipe is connected with negative pressure device, and the lower side of exhaust hood is open side, exhaust hood is connected with sealing cover, and gap is equipped between exhaust hood and sealing cover.The medium frequency furnace sealing exhaust device of the utility model not only can open and close furnace mouth automatically, but also can effectively suck away high-temperature flue gas discharged from furnace mouth.

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