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Waste gas purification process for lead-acid storage battery recovery

A lead-acid battery and exhaust gas purification technology, which is applied in battery recycling, recycling technology, gas treatment, etc., can solve the problems of ineffective removal of acid gas and environmental pollution, and achieve the effect of ensuring the effect of filtration and deacidification

Active Publication Date: 2021-09-21
太和县大华能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a waste gas purification process for the recovery of lead-acid batteries. The metal dust filter is used to filter the waste gas to filter out the lead-containing dust. For the automatic cleaning of the dust filter, the filter cloth attached with the acid gas treatment liquid is in contact with the waste gas to initially remove the fine particles and acid gas, and the fixed pipe sprays the treatment liquid evenly through the liquid spray holes on the inner peripheral surface, and the waste gas and The treatment liquid is fully contacted, which can completely remove the acid gas in the waste gas. The gas detection sensor detects the gas in the detection box to judge whether the waste gas treatment result meets the standard. Simple filtration to filter out the particulate dust in it cannot effectively remove the acid gas in it, and the acid and harmful gas in the exhaust gas will cause serious pollution to the environment

Method used

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  • Waste gas purification process for lead-acid storage battery recovery
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  • Waste gas purification process for lead-acid storage battery recovery

Examples

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Effect test

Embodiment 1

[0044] A kind of exhaust gas purification process for recycling lead-acid batteries proposed by the present invention, the exhaust gas purification process comprises the following steps:

[0045] S1. Dust filtration treatment: collect the exhaust gas generated during the recycling process of lead-acid batteries, the exhaust gas input pipe 4 leads the exhaust gas into the dust removal box 1, and the metal dust filter net 3 performs dust filtration treatment on the exhaust gas, and the filtered lead-containing dust falls into the dust removal box 1 bottom inner wall;

[0046] During the dust filtering process, the trapezoidal exhaust box 32 sprays exhaust gas to the rotating blade 34 through the flat blower port, and the rotating blade 34 drives the movable shaft 33 to rotate due to the wind force, and the pull rod 35 pulls the movable rod 37 through the rotating rod 36 to perform lateral reciprocating motion. The sliding block 38 reciprocates laterally along the guide rod 39 du...

Embodiment 2

[0057] Such as Figure 8 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the support mechanism 40 includes a fixed column 4001, an insertion rod 4002, a spring 4003, a limit slider 4004 and a limit chute 4005; the fixed column 4001 is vertically arranged on On the sliding block 38, the vertical opening is provided with an upward slot in the fixed column 4001, and the insertion rod 4002 is connected with the cleaning brush 41 and inserted downward in the fixed column 4001; The bottom of the rod 4002 is connected, the spring 4003 is in a compressed state and exerts an upward thrust on the insertion rod 4002, and the insertion rod 4002 exerts an upward thrust on the cleaning brush 41, and the cleaning brush 41 presses the metal dust filter 3 upwards, which is helpful for automatic cleaning. The particles blocked in the filter holes are brushed down, the side wall of the insertion rod 4002 is equipped with a limit slide 4004, and the limit slide 4005 i...

Embodiment 3

[0059] Such as Figure 9 As shown, this embodiment is basically the same as Embodiment 1. Preferably, two sets of liquid baffles 43 are installed near the top of the fixed pipe 19 by bolts. The liquid baffles 43 are located on both sides of the fixed pipe 19, and The number of each group of liquid baffles 43 is multiple; the liquid baffles 43 are arranged obliquely downward, and the two groups of liquid baffles 43 are arranged at intervals along the vertical direction, the gas moves upward in the fixed pipe 19, and the two sides are obliquely arranged The liquid baffles 43 can block the liquid therein, and by arranging multiple sets of liquid baffles 43 at intervals, the effect of liquid baffles can be significantly improved, which helps to prevent the gas from bringing the processing liquid out.

[0060] Working principle of the present invention:

[0061] The exhaust gas input pipe 4 guides the exhaust gas into the trapezoidal exhaust box 32, and the exhaust gas enters the ...

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Abstract

The invention belongs to the technical field of lead-acid storage battery recovery, and aims to solve the problems that at present, waste gas for lead-acid storage battery recovery is simply filtered through a filter screen to filter out particle dust in the waste gas, acid gas in the waste gas cannot be effectively removed, and harmful acid gas in the waste gas can cause serious pollution to the environment; the invention particularly relates to a waste gas purification process for lead-acid storage battery recovery, wherein the waste gas purification process comprises the following steps: dust filtration treatment; filtering and deacidifying treatment: filtering and deacidifying waste gas by using filter cloth attached with acidic gas treatment liquid; and deacidification purification treatment: spraying out the treatment liquid through liquid spraying holes in the inner circumferential surface of a fixed pipe, so as to enable the waste gas to be in full contact with the treatment liquid. According to the invention, not only can the waste gas for lead-acid storage battery recovery be subjected to dust filtration treatment so as to filter out lead-containing dust in the waste gas, but also acidic harmful gas in the waste gas can be effectively absorbed, so that the pollution to the environment is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of lead-acid battery recycling, in particular to a waste gas purification process for recycling lead-acid batteries. Background technique [0002] Batteries that use acidic aqueous solution as electrolyte are collectively called acid batteries, the most typical of which are lead-acid batteries. The main advantages of acid batteries are high working voltage, wide operating temperature, good high and low rate discharge performance, abundant raw material sources and low price. The disadvantage is that the energy density is low, which makes the volume and weight larger; lead-acid batteries, the positive electrode is lead dioxide, the negative electrode is spongy lead, the electrolyte is sulfuric acid aqueous solution, and the separator uses microporous rubber separators according to different types of lead-acid batteries. Plates, microporous plastic separators or other materials, and the battery case is made of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/10B01D46/00B01D53/78B01D53/40B01D53/30
CPCB01D46/10B01D53/78B01D53/40B01D53/30B01D2258/02Y02W30/84
Inventor 朱乾龙杜文明朱成龙陈新军刘坤明韩远远
Owner 太和县大华能源科技有限公司
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