Catapult deoxygenation and dehydrogenation device for oxygen-free copper production

Abstract

The invention discloses an ejection type deoxygenation and dehydrogenation machine for producing oxygen-free copper. The ejection type deoxygenation and dehydrogenation machine comprises a head part, a tube body, a sealing cover and a plurality of deoxygenation and dehydrogenation subunits, wherein the head part is made of pure copper; a graphite layer covers on the outer surface of the head part; the tube body has a tube wall made of the pure copper, and is connected with the head part; one end of the tube body is opened; an accommodating space is formed in the tube body; a graphite layer covers the periphery of the tube body; the sealing cover is used for sealing the opened end of the tube body; a graphite layer is arranged at the periphery of the sealing cover; the deoxygenation and dehydrogenation subunits are accommodated in the accommodating space; and copper separation plates are arranged between the adjacent deoxygenation and dehydrogenation subunits. The ejection type deoxygenation and dehydrogenation machine has the advantages of convenience for feeding, convenience for controlling the diffusion speed of deoxygenation and dehydrogenation agent, capability of realization of full-process impurity removing treatment through once feeding, no need of feeding for many times, reduction of chances of mixing impurities in the surface of molten copper and improvement of deoxygenation and dehydrogenation effect.

Description

technical field [0001] The invention relates to an oxygen-free copper production device, in particular to a catapult-type deoxygenation and dehydrogenation device for oxygen-free copper production. Background technique [0002] At present, higher and higher requirements are put forward for copper smelting productivity, cost and product quality. In order to meet this requirement, oxygen removal and dehydrogenation, especially oxygen removal and dehydrogenation in the production process of oxygen-free copper, has become a new innovation hotspot. . [0003] There are many existing deoxygenation and dehydrogenation methods, one of which is to add an oxygen scavenger and dehydrogenation agent. There are many ways to add an oxygen scavenger and dehydrogenation agent, such as stirring with a stirrer, or when adding copper, by the way Oxygen dehydrogenation agent. [0004] Oxygen and dehydrogenation agents are powdered or spherical, and are put into the furnace during the copper s...

AI Technical Summary

Problems solved by technology

However, this method is very troublesome, and when putting in, it is necessary to remove the charcoal or graphite layer on the copper liquid, so some oxygen will be brought in, resulting in poor product effect

[0005] What needs to be pointed out is that it has been found through research that impurity removal and oxygen removal and dehydrogenation are a gradual process. Adding oxygen, dehydrogenation and impurity removal agents in stages will achieve better results, but the existing method is based on smelting time, adding these substances several times, resulting in the surface solution quality is not good enough

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