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Energy-saving continuous aluminum alloy melting-refining furnace

An aluminum alloy, energy-saving technology, applied in the field of continuous aluminum alloy melting-refining device, to achieve the effects of convenient operation, uniform temperature and high efficiency

Inactive Publication Date: 2005-04-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an energy-saving continuous aluminum alloy melting-refining furnace, which solves the technical problem of integrating preheating, melting, degassing and refining, which not only improves thermal efficiency, saves energy consumption, but also ensures the quality of molten aluminum.

Method used

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  • Energy-saving continuous aluminum alloy melting-refining furnace
  • Energy-saving continuous aluminum alloy melting-refining furnace
  • Energy-saving continuous aluminum alloy melting-refining furnace

Examples

Experimental program
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Effect test

Embodiment

[0030] The existing continuous aluminum melting furnace melts 500 kilograms of aluminum per hour. Two heavy oil burners are installed in the overheating area, and the fuel consumption is 20 kg per hour. Three 30 kW resistance furnaces (each containing 500 kg of aluminum water) are used to operate simultaneously. After adjusting the temperature of the aluminum liquid to 700 ° C, the aluminum liquid is degassed with nitrogen. After slag removal and standing still, the blanks of auto parts are poured. This operation takes about 3 hours. The power consumption per kilogram of aluminum alloy is about 0.20 degrees. After changing the structure of the present invention, it can guarantee to obtain the suitable temperature of molten aluminum (see Table 2), thereby canceling the resistance furnace, and saving 200 kwh of electricity per ton of molten aluminum.

[0031] Table 2 Temperature of molten aluminum in different parts ℃

[0032] Superheating zone Degassing tank P...

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Abstract

The energy-saving continuous aluminum alloy smelting-refining furnace includes furnace material pre-smelting area comprising vertical furnace, aluminum liquid overheating area comprising reverberator, deairing pool and maintaining pool comprising crucible furnace, and these three parts are connected into one integral. The present invention features the oil or gas burner installed in only the overheating area, the outer furnace wall of the reverberator being circular, the crucible furnace with one side extending into the outer wall of the reverberator to form the common furnace wall separated from the aluminum liquid overheating area, the deairing pool in the crucible furnace separated from the maintaining area with partition wall, the upper part of the deairing pool with airflow channel communicated with the aluminum liquid overheating area, the liquid aluminum inlet in the middle part of the deairing pool, and the aluminum liquid channel in the bottom of the partition wall.

Description

Technical field: [0001] The invention relates to a continuous aluminum alloy melting-refining device, in particular to a shaft furnace-type preheating and melting zone, a reverberatory furnace-type molten aluminum overheating zone, and a crucible-type degassing and refining, heat preservation pouring zone. In addition to installing oil or gas burners in the overheating area of ​​the reverberatory furnace type aluminum industry to heat each area, no fuel or electric energy is used to melt or heat the aluminum liquid, thus saving the heat energy required for preheating and melting of the furnace charge and the degassing of the aluminum liquid Energy-saving continuous aluminum alloy melting-refining furnace for the electric energy required for refining and heat preservation and the heat loss during the transportation and distribution of aluminum liquid. Background technique: [0002] With the rapid development of my country's economy, the application of aluminum products is inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/00
Inventor 王汝燿鲁薇华
Owner DONGHUA UNIV
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