Continuous rotation electrolysis method and device for lead solution

Abstract

The invention discloses a method and a device for continuous rotating electrolysis of lead solution, belonging to the field of electrolytic refining of lead. The invention continuously electrolyzes the lead solution, and the supporting device includes an electrolytic cell and an electrode plate, the electrolysis plate is circular, the anode is fixed, the cathode rotates, scrapers are arranged on both sides of the cathode plate, and the scraper is matched with the chute. The lead-containing solution enters the electrolytic cell, and the lead ions are reduced to metallic lead at the cathode. The precipitated lead is scraped off by the scraper when the cathode plate rotates to the scraper, falls into the chute, and then collects along the chute to the conveyor belt and other subsequent links. The gas is released and exits from the exhaust port at the top of the electrolyzer. The present invention continuously feeds and discharges materials during the electrolysis of lead solution, and is easy to maintain. The rotation of the cathode plate also stirs and homogenizes the electrolyte, which reduces the lead concentration gradient of the electrolyte and improves the electrolysis efficiency. The device of the present invention is a single machine The processing capacity is stable, and the production capacity can also be increased by parallel connection of multiple machines according to the production demand, which can also remain stable.

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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