Crushing and recycling process of lithium battery after anaerobic cracking

A lithium battery and post-cracking technology, which is applied in the field of crushing and recycling technology after anaerobic cracking of lithium batteries, can solve the problems of inability to remove plastic particles and plastic films, low purity of recycled materials, waste of water resources, etc., so as to save energy, The effect of preventing thermal discharge and reducing production costs

Active Publication Date: 2018-12-04
河南巨峰环保科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now the country vigorously promotes the application of lithium batteries and is gradually phasing out lead-acid batteries. However, if lithium batteries are not effectively recycled, it will cause a lot of resource waste and pollution, and there are many recyclable resources in lithium batteries. At present, lithium batteries The recycling of plastics is usually wet recycling, which requires a lot of water resources, causing waste and pollution of water resources, and the purity of recycled materials is not high, and plastic particles and plastic films cannot be completely removed

Method used

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  • Crushing and recycling process of lithium battery after anaerobic cracking

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Effect test

Embodiment 1

[0039] The lithium battery is dismantled and discharged, and the disassembled and discharged lithium battery is sent to the crusher for crushing; the crushed material is connected to the cyclone collector with negative pressure through the conveying pipeline, and the dust collection system of the cyclone collector is collected Positive and negative electrode powder, the fan of the dust collection system will condense and recycle the gas drawn out, and the condensed and recovered gas will be discharged after waste gas treatment; the material will be vacuumed after passing through the cyclone collector and transported to the high-temperature anaerobic cracking furnace through the conveying device. The temperature of the high-temperature anaerobic cracking furnace is above 300°C. The high-temperature anaerobic cracking furnace is vacuumized and kept closed before adding the crushed materials. The conveying device is kept in a vacuum state during the conveying process. The doped pl...

Embodiment 2

[0045] Through the anaerobic feeder, the charged lithium battery is sent to the closed air-protected crusher with protective gas continuously for crushing. The protective gas is continuously fed into the air, and the connection between the entrance of the closed air-protected crusher and the anaerobic feeder is sealed. After the crushed material is vacuumed, it is transported to the High-temperature anaerobic cracking furnace, the temperature of the high-temperature anaerobic cracking furnace is above 300°C, the high-temperature anaerobic cracking furnace is vacuumized and kept closed before adding the crushed materials, and the conveying device is maintained during the conveying process In a vacuum state, the plastic doped in the mixed material is cracked to produce combustible gas, which is discharged and collected. After the cracked mixed material, only the positive and negative electrodes and metal are left; the cracked mixture is discharged from the high-temperature anaero...

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Abstract

The invention discloses a crushing and recycling process of a lithium battery after anaerobic cracking. The process directly sends the crushed lithium battery to a high-temperature anoxic cracking furnace for cracking, and sends all the low-recovery-value plastics to the high-temperature anoxic cracking furnace for cracking, and maximizes the recycling of the positive and negative powders, and thematerial is not discharged with the sorting of plastics and other metals; the process is relatively simple, the stability of the whole operation is ensured, and the production cost is reduced; afterthe high-temperature anaerobic cracking of the positive and negative electrode sheets, a binder for bonding the positive and negative electrode powder to form a film is subjected to the high-temperature anoxic cracking to form gas, the adhesion of the positive and negative electrode sheet is weakened to the extreme, and the recovery purity of the positive and negative electrode powder, aluminum and copper constituting the positive and negative electrode sheet is improved; the plastic generates a large amount of combustible gas after anaerobic cracking, and the process can be used for heating the high-temperature anoxic cracking furnace to promote energy recycling.

Description

technical field [0001] The invention relates to the technical field of lithium battery recycling, in particular to a crushing and recycling process for lithium batteries after anaerobic cracking. Background technique [0002] Now the country vigorously promotes the application of lithium batteries and is gradually phasing out lead-acid batteries. However, if lithium batteries are not effectively recycled, it will cause a lot of resource waste and pollution, and there are many recyclable resources in lithium batteries. At present, lithium batteries The recycling of plastics is usually wet recycling, which requires a lot of water resources, causing waste and pollution of water resources, and the purity of recycled materials is not high, and plastic particles and plastic films cannot be completely removed. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a crushing recovery process after anaerobic cracking of li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B03B9/06H01M10/54
CPCH01M10/54B03B9/06B07B15/00B03B2009/066B09B3/40Y02W30/84Y02W30/52Y02W30/62
Inventor 巨博奥巨李冲巨峰
Owner 河南巨峰环保科技有限公司
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