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Waste lead-acid storage battery residual acid recovery device and recovery method

A technology of lead-acid battery and recovery device, which is applied in the direction of lead-acid battery, battery recycling, waste collector recycling, etc., and can solve the problems of large floor area, waste of acid solution, environmental damage, etc.

Active Publication Date: 2020-10-20
天能集团(濮阳)再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The lead-acid battery contains acid liquid. If it is discarded casually after use, it will cause great damage to the environment, and it will also cause waste of acid liquid. At present, there are many methods and devices that can recycle the residual acid of the battery, such as The patent number is 201711026055.X, and the invention patent named "A Method for Recycling Residual Acid of Waste Lead-acid Batteries" discloses a method of recovering residual acid using physical methods. First, the waste acid is collected in In the sedimentation tank, after adding additives, precipitate for 1-2 hours, then discharge the waste acid solution from the upper part of the sedimentation tank into the secondary filter tank, filter the waste acid solution in the process, obtain the initial treatment sulfuric acid electrolyte, and then inject it into the Three-stage osmosis tank, and add flocculant to the filtrate, stir and mix well, let it settle for 0.5 to 1 hour, and then precipitate and filter to obtain a secondary treatment sulfuric acid electrolyte containing barium sulfate particle suspension and lignosulfonate, Then the secondary treatment sulfuric acid electrolyte is input into the four-stage treatment pool for electrolysis. After the electrolysis is completed, the lead carbonate is covered with the suction filter layer to obtain the recyclable sulfuric acid electrolyte.
In the process of physical recovery of waste acid, multi-stage acid pools are required, which occupy a large area. At the same time, only a single filtration can be performed for each filtration, and the filtering effect on impurities in the acid liquid is average.

Method used

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  • Waste lead-acid storage battery residual acid recovery device and recovery method
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  • Waste lead-acid storage battery residual acid recovery device and recovery method

Examples

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Embodiment 1

[0049] see Figure 1 to Figure 6 , The present invention provides a technical solution: a waste lead-acid battery residual acid recovery device, which includes: a recovery tank 1, a drain pump 8, and a circulation filter device.

[0050] The upper end of the recovery tank 1 is connected with a liquid inlet pipe 2, a feeding port 3 is provided on one side of the upper end liquid inlet pipe 2 of the recovery tank 1, and a control panel 4 is arranged on the upper side wall of the recovery tank 1. The bottom side wall of the bottom is provided with a transparent observation window 5; the drain pump 8 is fixed on the lower end face of the recovery tank 1, and the water inlet end of the drain pump 8 is connected to the inner bottom wall of the recovery tank 1 through a pipeline, and the drain pump 8 The water outlet is respectively connected to the sewage pipe 9 and the liquid discharge pipe 11 through a tee, a first valve 10 is provided on the sewage pipe 9, a second valve 12 is pr...

Embodiment 2

[0058] Such as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the stirring member 16 is a plurality of cylindrical drums eccentrically fixed on the output shaft of the drive motor 6, and the outer wall of the drum is attached to the inner wall of the first filter plate 20 , the first filter plate 20 is not provided with a filter hole corresponding to the stirring part 16, and the stirring part is set as an eccentric drum, on the one hand, the space between the stirring part and the first filter plate is reduced, and the liquid pressure in the flow chamber is ensured. , can provide agitation and mixing efficiency through high-speed rotation.

[0059] A method for recovering residual acid using the spent lead-acid battery residual acid recovery device of the above-mentioned embodiment 1 or embodiment 2, comprising:

[0060] Step 1: Put the waste lead-acid battery into the crushing equipment for crushing, screen the battery fragments discharg...

Embodiment 3

[0071] Such as Figure 8 As shown, the difference between Embodiment 3 and Embodiment 2 is that a first partition 27 is fixed at the position between the stirring member 16 and the rolling blade set 24 inside the flow chamber, and the output shaft of the driving motor 6 rotates through the Through the first partition 27, a second partition 28 is fixed at the position between the stirring member 16 and the rolling blade group 24 inside the permeation chamber, and one end of the return pipe 29 is connected to the second partition 28, The other end of the return pipe 29 is connected to the first filter plate 20 corresponding to the stirring member 16 , and the return pipe 29 communicates with the permeation chamber at the corresponding part of the rolling blade set 24 and the flow chamber at the corresponding part of the stirring member 16 . No filter hole is provided on the first filter plate 20 corresponding to the position of the stirring member 16 .

[0072] A method for rec...

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Abstract

The invention discloses a waste lead-acid storage battery residual acid recovery device and recovery method, the waste lead-acid storage battery residual acid recovery device comprises a recovery tank, a liquid discharge pump and a circulating filtration device, the treatment of waste acid liquid is completed in the recovery tank, the occupied area of existing waste acid treatment equipment can bereduced, and meanwhile, the control is easy; the recycling tank is provided with the circulating filtering device, so that the waste acid liquid in the recycling tank can be circularly filtered for multiple times, and the filtering effect on the acid liquid can be improved.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a device and method for recovering residual acid from waste lead-acid batteries. Background technique [0002] Lead-acid battery is a kind of rechargeable battery, such as mobile phone battery and electric vehicle battery, which are commonly used in daily life. When charging, it uses external electric energy to regenerate internal active substances, stores electric energy as chemical energy, and regenerates chemical energy when it needs to be discharged. can be converted into electrical energy output. [0003] The lead-acid battery contains acid liquid. If it is discarded casually after use, it will cause great damage to the environment, and it will also cause waste of acid liquid. At present, there are many methods and devices that can recycle the residual acid of the battery, such as The patent number is 201711026055.X, and the invention patent named "A Method for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54H01M10/06
CPCH01M10/54H01M10/06Y02W30/84
Inventor 翟如茂张结结赵亚楠韩飞飞
Owner 天能集团(濮阳)再生资源有限公司
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