Recycled aluminum smelting cast ingot system

Abstract

The invention relates to a recycled aluminum smelting cast ingot system. The recycled aluminum smelting cast ingot system comprises an input passageway connected to a corresponding smelting furnace and a buffer tank. A backflow purification pit is formed between the output end of the input passageway and the buffer tank, and an output port of the backflow purification pit is arranged to protrude out of the bottom wall of the backflow purification pit by a certain height and be lower than the bottom face of the output end of the input passageway. A furnace door device of the smelting furnace comprises a furnace door running gear, and the furnace door running gear comprises a safety protection cable connected to a furnace door. The recycled aluminum smelting cast ingot system is reasonable in structure, the quality of casting liquid conveyed by the system is good, and the recycling quality of cast ingots of recycled aluminum is improved.

Description

technical field [0001] The invention relates to a secondary metal recovery system. In particular, it relates to a secondary aluminum smelting ingot casting system. Background technique [0002] One of the characteristics of secondary metal smelting and recovery including secondary aluminum is that the smelting liquid contains a large number of sintered ash and impurities with large differences in weight and thickness. When the impurities are not removed in place, it will affect the secondary metal ingot recycling In severe cases, the ingots are like bean curd dregs when they are reused, and cannot be used normally. At the same time, the quality of the ingots is also affected by the oxidation problem during the transportation of the smelting liquid, the temperature change of the metal smelting liquid, etc., due to regeneration There is a long distance between metal smelting and casting ingot process, and the transportation of smelting liquid is also a key and important proce...

AI Technical Summary

Problems solved by technology

[0002] One of the characteristics of secondary metal smelting and recovery including secondary aluminum is that the smelting liquid contains a large number of sintered ash and impurities with large differences in weight and thickness. When the impurities are not removed in place, it will affect the secondary metal ingot recycling In severe cases, the ingots are like bean curd dregs when they are reused, and cannot be used normally. At the same time, the quality of the ingots is also affected by the oxidation problem during the transportation of the smelting liquid, the temperature change of the metal smelting liquid, etc., due to regeneration There is a long distance between metal smelting and casting ingot process, and the transportation of smelting liquid is also a key and important process link in order to obtain good ingot quality

Due to the particularity of recycling metal smelting liquid, there are certain technical limitations in terms of technology and equipment to purify or filter it. However, the existing metal regeneration smelting ingots include conveying devices such as input channels, etc., due to The structure and the corresponding conduction methods are unreasonable. On the one hand, it is difficult to have effective impurity removal measures. At the same time, due to its long-distance transportation, the casting liquid is cooled and oxidized by the ambient air when it flows through the input channel. A layer of oxide skin formed on the surface is brought into the mold together, and a large number of air bubbles and residues are entrained in the casting liquid. On the one hand, the surface of the ingot is rough, and on the other hand, the residue may form a layer on the surface of the ingot. The residue layer of bean curd slag, and the temperature change of the metal smelting liquid transported over a long distance due to the cooling of the ambient air will affect the smelting recovery efficiency and the quality of the ingot, and secondary heating may be required when the transport distance is long

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