An ultra-clean smelting furnace for improving the quality of recycled aluminum molten metal

Abstract

This utility model belongs to the field of aluminum alloy smelting production technology, specifically relating to an ultra-clean smelting furnace for improving the quality of recycled aluminum molten metal. This smelting furnace achieves efficient purification of recycled aluminum molten metal through innovative furnace structure and synergistic functional unit design. The furnace structure includes a furnace door, a holding chamber, a booster pump, an online degassing box, and a filter box. The aluminum molten metal enters the online degassing box through a channel via the booster pump to remove hydrogen and inclusions. It then overflows into the filter box to remove oxide inclusions and tiny impurity particles. After filtration, the aluminum molten metal is either returned to the smelting furnace or exited through the outlet. After refining in the ultra-clean furnace, the hydrogen content and oxide inclusion content of the aluminum molten metal are reduced, improving its quality. During the purification process, the circulating stirring also makes the chemical composition more uniform, the temperature of the aluminum molten metal more stable, and reduces energy consumption.

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