Continuous rotation electrolysis method and device for lead solution

Abstract

The invention discloses a continuous rotation electrolysis method and device for a lead solution and belongs to the field of electrolytic refining of lead. According to the continuous rotation electrolysis method and device for the lead solution, continuous electrolysis is performed on the lead solution; the matched device comprises an electrolysis tank and electrode plates; each electrode plate is round; the positive electrode is fixed, and the negative electrode rotates; and the two sides of the negative electrode plate are each provided with a scraper, and the scrapers are matched with a chute. The solution containing lead enters the electrolysis tank, lead ions are reduced into metal lead on the negative electrode, precipitated lead is scraped down by the scrapers and falls into the chute when rotating to the scrapers along with the negative electrode plate, then other subsequent links that the precipitated lead is collected to a conveying belt along the chute are performed, and gas is released on the positive electrode, and is exhausted from an exhaust port in the top of the electrolysis tank. According to the continuous rotation electrolysis method and device for the lead solution, continuous feeding and continuous discharging are performed in the electrolysis process of the lead solution, maintenance is convenient, the negative electrode plate rotates and also uniformly stirs electrolyte, the lead concentration gradient of the electrolyte is reduced, and the electrolysis efficiency is improved. The device is stable in single-machine treatment capacity, multi-machine parallel connection can also be performed according to the production requirement so as to improve the productivity, and stabilization can also be kept.

Description

technical field [0001] The invention relates to a method and a device for continuous rotating electrolysis of lead solution, belonging to the field of electrolytic refining of lead, in particular to the field of wet electrolytic refining of waste lead-acid batteries and waste lead paste resources. Background technique [0002] Electrolysis is the main process of lead refining. At present, the industry generally adopts tank electrolysis. Usually, concrete lining PVC, PE, etc. are used as the electrolytic cell body, crude lead and refined lead are used as electrodes, and the refined lead precipitated from the cathode is melted and cast into refined lead lead ingots. , such an electrolysis method has a large processing capacity, but the volume of the electrolytic cell is large, and the volume and quality of the lead plates obtained by the electrodes are large, and there are many inconveniences in intermittent lifting, especially not suitable for small and scattered lead electrol...

AI Technical Summary

Problems solved by technology

The lead-containing material lead paste obtained by mechanical crushing and sorting of waste lead-acid batteries is currently used in the process of "wet desulfurization conversion + low-temperature smelting" or blending with raw ore lead for smelting. Both processes focus on smelting unit, and the obtained crude lead still needs to be electrolytically refined, and then the lead can be recycled to the lead application industry chain. The process route is long and the processing cost is high.

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