Recovery and processing technique for waste lead acid accumulator

Abstract

The invention discloses a process for recovering old and useless lead-acid storage batteries, comprising the steps of dismantling of a storage battery, processing of waste liquid, shell processing, smelting of coarse lead, deslagging of cast ingots, sedimentation of swirling flow, collecting and dust removal, dust removal of water film, etc. The invent adopts a marble acidproof and leakproof sewage pool for dealing with waste water, so the acid liquor can not permeate into and contaminate the earth; the smelting of coarse lead and deslagging of cast ingots are carried out by using a coal gas producer for gas combustion, with a plurality of coal gas nozzles providing enough fire to thoroughly smelt lead containing materials. The coal gas nozzles are arranged in the front of a reverberator the rear end of which is provided with an air exhaust opening to move the fire in the front constantly backward to thoroughly smelt lead containing materials at the back, thereby saving energy resource; a flue is formed in a S-shape, so the gas stays for a long time in the flue with a good sedimentation effect; as cloth-bag dust removal followed by the dust removal of water film is adopted, the dust is completely removed, so the discharged gas causes no pollution to the atmosphere. The invention has a perfect processing which leads to no secondary pollution to the environment.

Description

【Technical field】

[0001] The invention relates to the field of lead-acid batteries, in particular to a recycling process for waste lead-acid batteries. 【Background technique】

[0002] Lead-acid batteries are used in a wide variety of applications to power a wide variety of products. At present, electric bicycles that are vigorously promoted as smoke-free vehicles basically use lead-acid batteries to provide walking power. However, lead-acid batteries are prone to cause "secondary pollution" but the development of this new type of means of transportation has been criticized.

[0003] Lead-acid batteries are composed of positive and negative plates, separators, shells, electrolytes and wiring pile heads, etc. The chemical reaction of the discharge depends on the positive plate active material (lead Lead) is carried out under the action of electrolyte (dilute sulfuric acid solution), wherein the grid of the pole plate is made of lead-antimony alloy for traditional batteries, ...

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