Magnesium smelting device in vacuum high-temperature liquid state, and magnesium smelting method

Abstract

The invention relates to a magnesium smelting device in a vacuum high-temperature liquid state, and a magnesium smelting method. The magnesium smelting device is low in energy consumption and high in efficiency. The magnesium smelting device adopts the particular technical scheme that the magnesium smelting device comprises a vacuum induction furnace, a power supply device, a vacuum device and a magnesium steam collection system, wherein a reaction vessel is arranged in the vacuum induction furnace; the power supply device performs heating by utilizing an inductive electrocaloric effect; the reaction vessel is connected with a vacuum feeding device; a drainage cover is arranged in the vacuum induction furnace, located above the reaction vessel, and connected with a dust collection device and a condenser outside the vacuum induction furnace; and the condenser is connected with a vacuum air extractor. The magnesium smelting device adopts a continuous smelting manner based on a liquid phase, so that the smelting cycle can be greatly shortened, the production efficiency is improved, and the problems of high energy consumption and high pollution in the prior art are avoided; and generated slag is completely separated from a magnesium smelting raw material and can be recycled as a secondary resource, so that sustainable development of the industry is facilitated.

Description

technical field [0001] The invention relates to a magnesium smelting device and method. Background technique [0002] At present, the large-scale production of primary magnesium in my country all adopts the Pidgeon process, and the materials undergo solid-state reaction after mixing and pelletizing. Most of the Pidgeon method uses raw coal for heating. The overall process has high energy consumption, high material consumption, high pollution, long production cycle, and low efficiency. The slag and ferrosilicon leftovers finally condense into blocks, making it difficult to reuse. [0003] In recent years, the research and improvement of magnesium metal smelting process mainly revolves around the Pidgeon method, focusing on the expansion of single tank output and energy saving and emission reduction, and the vertical tank Pidgeon method has been developed. Compared with the traditional Pidgeon method, the labor intensity of the vertical pot Pidgeon method is reduced, the degr...

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Problems solved by technology

Compared with the traditional Pidgeon method, the labor intensity of the vertical pot Pidgeon method is reduced, the degree of mechanization and automation is improved, and the smelting cycle is reduced. However, the reaction between the raw materials of the vertical pot Pidgeon method has not changed substantially, and has not solved The Pidgeon method has the fundamental problems of high energy consumption, heavy pollution, and high cost. The output of a single device is still low, and this method has not achieved large-scale production

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