Regenerative aluminum melting furnace

Abstract

The invention discloses a regenerative aluminum melting furnace. The regenerative aluminum melting furnace includes a furnace body, and a feed port is formed in the furnace body. The regenerative aluminum melting furnace is characterized in that the furnace body is internally provided with a burner, an aluminum ingot melting platform and a molten pool, a discharge port is formed in the bottom of the molten pool, hot flue gas generated by the combustion of the burner heats and melts aluminum ingots on the aluminum ingot melting platform, liquid aluminum flows into the molten pool, and then is discharged from the discharge port; the furnace body is further internally provided with a heat exchange pipeline, an inlet of the heat exchange pipeline is located above the molten pool, and the heatexchange pipeline extends into the molten pool from the inlet to form at least one heat exchange pipe located in the molten pool, and the at least one heat exchange pipe continues to extend out of thefurnace body for being connected with a regenerative body. The high-temperature flue gas in the aluminum melting furnace heats aluminum liquid through a heat exchanger, the utilization of flue gas waste heat is improved, and the used amount of fuel is saved.

Description

technical field [0001] The invention relates to aluminum processing equipment, in particular to a novel regenerative aluminum melting furnace. Background technique [0002] Aluminum melting furnace is the most commonly used equipment in the aluminum processing and casting industry. Its melting process belongs to the production process that consumes the most energy and materials in the aluminum processing industry. Therefore, the working performance of the aluminum melting furnace directly affects the economy of the entire industry. [0003] There are mainly the following problems in the use of traditional aluminum melting furnaces: [0004] (1) The temperature self-control ability is poor, resulting in local overheating of the molten aluminum, and physical and chemical phenomena such as oxidation and hydrogen evolution are prone to occur on the surface of the molten aluminum. This phenomenon affects the quality of aluminum products on the one hand, and increases the burning ...

AI Technical Summary

Problems solved by technology

[0004] (1) The temperature self-control ability is poor, resulting in local overheating of the aluminum liquid, and physical and chemical phenomena such as oxidation and hydrogen evolution are prone to occur on the surface of the aluminum liquid. This phenomenon affects the quality of aluminum products on the one hand, and increases the burning loss of aluminum products on the other hand

[0005] (2) The heat exchange structure is poor, and the heat loss is serious, among which the smoke exhaust loss is as high as 35-40%, and the heat dissipation loss is as high as 10-15%, which makes the natural gas consumption larger

[0006] (3) The method of directly directing the flame into the molten aluminum is often used, which can easily lead to local overheating of the surface of the molten aluminum, and the surface of the molten aluminum is prone to physical and chemical phenomena such as oxidation and hydrogen evolution. This phenomenon affects the quality of aluminum products on the one hand, and increases the number of aluminum products on the other burning loss

[0007] (4) The traditional aluminum melting furnace is a typical periodic high-temperature smelting equipment. From the entry of aluminum ingots to the end of smelting, it can be roughly subdivided into charging period, early melting period, mid-melting period, late melting period, heating period, refining and holding period , this periodic work system greatly affects the smelting efficiency of the aluminum melting furnace, which is not conducive to the expansion of the production scale of the enterprise

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