Recovering and utilizing method for solid waste acid-leaching lead slime on polar plate of storage battery and system

Abstract

The invention belongs to a recovering and utilizing method for a solid waste acid-leaching lead slime on a polar plate of a storage battery and a system. According to the method, an obtained lead-bearing suspension acid liquid is collected and lead powder in the lead-bearing suspension acid liquid is immediately separated from an acid leaching liquid through a pressure filtration method. The recovered lead powder is collected, dried, crushed and decontaminated and then is recycled according to the components and the amount of the lead powder. The system comprises a weighing control adder, a vacuum paste mixing machine, a plate coating machine and a crushing and decontaminating machine. The lead-bearing suspension acid liquid can be automatically separated and recycled immediately, so that the problems that the lead-bearing suspension acid liquid pollutes the environment, and is high in recovery cost and large in floor area can be effectively solved, and the system has the advantages of being reasonable in method, simple in structure, low in recovery cost, high in resource recovery utilization ratio and good in energy-saving and environment-friendly effects.

Description

[0001] technical field [0002] The invention belongs to a method and system for recovering and utilizing lead acid sludge from solid waste of storage battery pole plates. Background technique [0003] In the manufacturing process of the raw plate of the storage battery, the smear is to apply the lead paste on the cast grid through the plate coating machine. In order to ensure the product quality and prevent excessive water loss on the surface of the plate, the wet The surface of the plate is required to be acid-leached to form a lead sulfate layer to prevent the surface of the plate from cracking. However, after the plate is soaked and washed with acid, a large amount of lead-containing suspended acid will be produced. This large amount of lead-containing suspended acid needs to occupy a large number of sealed containers and sites for long-term precipitation. After a long period of precipitation, the precipitate formed The waste is lead acid sludge, which is hazardous s...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to design a method and system for reclaiming and utilizing lead acid sludge from battery plate solid waste, which can automatically separate and recycle lead-containing suspended acid immediately, and can effectively solve the environmental pollution caused by lead-containing suspended acid , The problem of high recycling cost and large floor area has the advantages of reasonable method, simple structure, low recycling cost, high resource recycling rate, and good energy saving and environmental protection effect

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