Fused salt electrolysis device for preparing rare earth metal

Abstract

The invention relates to a fused salt electrolysis device for preparing rare earth metal, comprising an electrolysis box. An electrolytic cell is arranged in the electrolysis box; and a sealing coveris mounted at the top of the electrolysis box close to the electrolytic cell. According to the fused salt electrolysis device for preparing the rare earth metal, a motor drives a rotating rod to rotate through a second gear, the rotating rod drives a cathode rod to rotate, and the cathode rod adjusts the distance between each side surface and an anode rod through rotation, so that metal separatedout of the surface of the cathode rod is more uniform, and the separation efficiency of the rare earth metal can be effectively improved; and meanwhile, the cathode rod drives a first reciprocating screw rod to revolve through a first screw rod base, and the first reciprocating screw rod drives a third gear and a fourth gear to relatively move, so that the fourth gear drives the first reciprocating screw rod to rotate through the third gear, the first reciprocating screw rod drives a scraper frame and a scraper to move up and down, metal on the surface of the cathode rod is scraped off, and the metal separation efficiency can be further improved.

Description

technical field [0001] The invention relates to the technical field of molten salt electrolysis, in particular to a molten salt electrolysis device used for the preparation of rare earth metals. Background technique [0002] The preparation of rare earth metals by molten salt electrolysis refers to the method that under the action of direct current, the rare earth ions in the molten salt electrolyte containing rare earth metals obtain electrons and reduce them to metals at the cathode of the electrolytic cell. Usually, chloride molten salt electrolytes are used in industry. rare earth metals. [0003] When the existing molten salt electrolysis device precipitates metal on the surface of the cathode, with the precipitation of the metal, the ability of the cathode to obtain electrons is weakened, so that the precipitation efficiency of the metal is reduced, and the metal cannot be scraped off while the metal is deposited on the cathode, which is inconvenient to use. We propos...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a molten salt electrolysis device for the preparation of rare earth metals, to solve the problem that when the existing molten salt electrolysis device precipitates metal on the surface of the cathode, the ability of the cathode to obtain electrons is weakened with the precipitation of the metal, so that The precipitation efficiency of the metal decreases, and the metal cannot be scraped off at the same time as the cathode precipitates the metal, which is inconvenient to use

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