A device and method for extracting light metals by internal heating that can automatically lift materials

Abstract

The present invention is a device and method for extracting light metals by internal heating that can automatically lift and lower materials. The device includes a reaction furnace chamber, a metal crystallization chamber is fixedly connected to the upper end of the reaction furnace chamber, and an elevator is provided at the lower end. The elevator drives the reaction materials to Lifting movement in the reactor room. It can ensure that all the metal vapor is crystallized in the crystallizer, improving the crystallization efficiency and metal yield; the resistance heating element is set up to be in close contact with the reaction materials, which has high thermal efficiency, fast heating rate, fast reaction speed and energy saving; simple structure and low cost ;The temperature in the metal crystallizer can be controlled by adjusting the height of the gas distributor, changing the thickness of the upper fire baffle of the reaction furnace chamber, changing the height of the resistance heating element in the reaction furnace, and raising and lowering the entire device through spiral spring fasteners. , and then control the crystallization temperature of gaseous metal vapor; it is not only suitable for the production of light metals, but also can be used for the purification of metals or the extraction of light metals from low-grade ores and red mud.

Description

[0001] Technical field: [0002] The invention relates to the technical field of light metal preparation, in particular to a device and method for extracting light metal by internal heating that can automatically lift materials. [0003] Background technique: [0004] The production of light metals can generally be obtained by molten salt electrolysis. For some light metals with high vapor pressure, such as lithium, magnesium, calcium, etc., vacuum metallurgy can also be used to extract them. Taking metal magnesium as an example, in the vacuum metallurgy method of magnesium, silicon thermal or aluminum thermal metal vacuum thermal reduction methods are the most used, and the most widely used reducing agent is ferrosilicon alloy, and the raw material is mostly calcined dolomite, which can also be magnesite. The calcined product of a mixture of limestone and limestone, this method is called silicothermal reduction. For some low-grade ores and red mud with more magnesium content,...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of existing light metal extraction devices, the purpose of the present invention is to provide a device and method for extracting light metals by internal heating that can automatically lift materials, which solves the problem of large energy consumption loss of traditional vacuum reduction devices, poor crystallization effect of light metals, and low crystallization efficiency. Low, complex production equipment and other issues

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