Lithium battery adhesive waste gas treatment system

Abstract

The utility model relates to a lithium battery adhesive waste gas treatment system, which comprises a waste gas collection system, a condensation recovery system, an electrostatic dust collector, an alkali liquor washing tower, a dry adsorption tower, an activated carbon adsorption system, a filter and an exhaust system, the outlet end of the condensation recovery system is connected with the electrostatic dust collector, the alkali liquor washing tower is connected with the electrostatic dust collector, the dry adsorption tower is connected with the alkali liquor washing tower, the dry adsorption tower is connected with the activated carbon adsorption system, the activated carbon adsorption system is connected with the filter, and the filter is connected with the exhaust system. Compared with the prior art, according to the waste gas characteristics in the lithium battery adhesive production process, tiny particles, gaseous fluorides and organic solvents are emphatically treated, so that efficient and stable operation is realized, and pollutant emission is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery processing technology, and specifically to a lithium battery adhesive waste gas treatment system. Background Technology

[0002] Waste gas treatment is a crucial step in the production of lithium battery adhesives. However, current waste gas treatment systems are not tailored to lithium battery adhesives and remain generic systems. Available adhesive waste gas treatment solutions rely on simple filtration and adsorption technologies, but these present numerous problems when dealing with the complex composition of waste gases generated during lithium battery adhesive production.

[0003] First, traditional systems are inefficient at handling fine particles. These particles easily suspend in exhaust gases and pass through simple filtration devices, leading to excessive particulate matter content in emissions. Second, the removal of gaseous fluorides is a challenge. Traditional technologies often lack dedicated treatment modules for these harmful gases, resulting in fluorides potentially not being effectively removed during emission, increasing environmental risks. Furthermore, traditional systems have limited adsorption capacity for organic solvents. Due to the lack of efficient adsorption materials and designs, volatile organic compounds (VOCs) may remain in emissions, increasing air pollution.

[0004] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0005] The purpose of this invention is to provide a lithium battery adhesive waste gas treatment system to overcome the above-mentioned shortcomings and deficiencies of the prior art.

[0006] A lithium battery adhesive waste gas treatment system includes: a waste gas collection system, a condensation recovery system, an electrostatic precipitator, an alkaline scrubbing tower, a dry adsorption tower, an activated carbon adsorption system, a filter, and an exhaust system. The waste gas collection system is connected to an exhaust pipe, the condensation recovery system is connected to the waste gas collection system, the outlet of the condensation recovery system is connected to the electrostatic precipitator, the alkaline scrubbing tower is connected to the electrostatic precipitator, the dry adsorption tower is connected to the alkaline scrubbing tower, the dry adsorption tower is connected to the activated carbon adsorption system, the activated carbon adsorption system is connected to the filter, and the filter is connected to the exhaust system.

[0007] The electrostatic precipitator includes: a corona discharge electrode, a honeycomb dust collection plate, a rapping device, and a dust collection hopper. The corona discharge electrode is disposed between the honeycomb dust collection plates, which are arranged alternately. The rapping device is fixed to the inner wall of the electrostatic precipitator and is connected to the honeycomb dust collection plate during use. The dust collection hopper is located below the honeycomb dust collection plate.

[0008] Furthermore, the exhaust gas collection system includes: a dust filter chamber, an exhaust chamber, a combustion chamber, a dust collection trough, a blower, and a burner. The dust filter chamber is equipped with a dust collection trough. The dust filter chamber is connected to the exhaust chamber via a pipe. The exhaust chamber is connected to the blower. The exhaust chamber is connected to the combustion chamber via a pipe. The combustion chamber is equipped with a burner. The exhaust chamber is connected to a condensation recovery system.

[0009] Furthermore, the heat exchanger of the condensation recovery system is a plate heat exchanger.

[0010] Furthermore, the adsorbent in the dry adsorption tower is zeolite.

[0011] The beneficial effects of this utility model are:

[0012] Compared with traditional technologies, this invention addresses the characteristics of waste gas generated during the production of lithium battery adhesives, focusing on the treatment of fine particles, gaseous fluorides, and organic solvents, thereby achieving efficient and stable operation and effectively reducing pollutant emissions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of an electrostatic precipitator.

[0015] Figure label:

[0016] The exhaust gas collection system 100, dust filter chamber 110, discharge chamber 120, combustion chamber 130, dust collection trough 140, blower 150 and burner 160.

[0017] The system includes a condensation recovery system 200, an electrostatic precipitator 300, a corona discharge electrode 310, a honeycomb dust collection plate 320, a rapping device 330, and a dust collection hopper 340.

[0018] The system includes an alkaline scrubbing tower (400), a dry adsorption tower (500), an activated carbon adsorption system (600), a filter (700), and an exhaust system (800). Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] Example 1

[0021] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a schematic diagram of an electrostatic precipitator.

[0022] like Figure 1As shown, a lithium battery adhesive exhaust gas treatment system includes: an exhaust gas collection system 100, a condensation recovery system 200, an electrostatic precipitator 300, an alkaline scrubbing tower 400, a dry adsorption tower 500, an activated carbon adsorption system 600, a filter 700, and an exhaust system 800. The exhaust gas collection system 100 is connected to an exhaust pipe 1, the condensation recovery system 200 is connected to the exhaust gas collection system 100, the outlet end of the condensation recovery system 200 is connected to the electrostatic precipitator 300, the alkaline scrubbing tower 400 is connected to the electrostatic precipitator 300, the dry adsorption tower 500 is connected to the alkaline scrubbing tower 400, the dry adsorption tower 500 is connected to the activated carbon adsorption system 600, the activated carbon adsorption system 600 is connected to the filter 700, and the filter 700 is connected to the exhaust system 800.

[0023] like Figure 2 As shown, the electrostatic precipitator 300 includes: a corona discharge electrode 310, a honeycomb dust collection plate 320, a rapping device 330, and a dust collection hopper 340. The corona discharge electrode 310 is disposed between the honeycomb dust collection plates 320, which are arranged alternately. The rapping device 330 is fixed to the inner wall of the electrostatic precipitator 300 and is connected to the honeycomb dust collection plate 320 during use. The dust collection hopper 340 is disposed below the honeycomb dust collection plate 320.

[0024] The exhaust gas collection system 100 includes: a dust filter chamber 110, an exhaust chamber 120, a combustion chamber 130, a dust collection trough 140, a blower 150, and a burner 160. The dust filter chamber 110 contains the dust collection trough 140. The dust filter chamber 110 is connected to the exhaust chamber 120 via a pipe. The exhaust chamber 120 is connected to the blower 150. The exhaust chamber 120 is also connected to the combustion chamber 130 via a pipe. The combustion chamber 130 contains the burner 160. The exhaust chamber 120 is connected to a condensate recovery system 200. The exhaust gas in the dust filter chamber 110 is filtered through a simple filter screen.

[0025] The heat exchanger of the condensation recovery system 200 is a plate heat exchanger.

[0026] The adsorbent in the 500 dry adsorption tower is zeolite.

[0027] First, the exhaust gas collection system 100 ensures effective capture and preliminary purification of the exhaust gas. This system reduces particulate matter and initial pollutants in the exhaust gas through the synergistic action of components such as the dust filter chamber 110, the emission chamber 120, and the combustion chamber 130. The design of the blower 150 and the burner 160 improves the stability of exhaust gas delivery. This structure forms the basic structure of the exhaust gas treatment system.

[0028] Then, the newly added condensation recovery system 200 utilizes a plate heat exchanger to efficiently recover organic solvents from the waste gas, reducing environmental emissions and achieving resource reuse. Next, the electrostatic precipitator 300 effectively removes fine particles from the waste gas through the corona discharge electrode 310 and the honeycomb dust collection plate 320. The rapping device 330 and the dust collection hopper 340 ensure the continuous and efficient operation of the dust collector. The waste gas first passes through the corona discharge electrode 310, where, under the action of a high-voltage electric field, gas molecules are ionized, generating a large number of electrons and ions. These charged particles collide with the fine particles in the waste gas, causing the particles to become charged. Under the action of the electric field force, the charged particles move towards the honeycomb dust collection plate 320 and deposit on the plate. The rapping device 330 periodically vibrates the honeycomb dust collection plate 320, causing the deposited particles to fall into the dust collection hopper 340 for easy cleaning and disposal. The electrostatic precipitator 300 can efficiently remove fine particles from the waste gas, which is particularly important for the fine particles generated during the production of lithium battery adhesives. Because these particles can impact the environment and equipment, their efficient removal is crucial to the system design; it can also handle high-temperature and high-humidity exhaust gases, which is highly compatible with the characteristics of exhaust gases produced during lithium battery adhesive manufacturing. Compared to other particle removal technologies, electrostatic precipitators offer high removal efficiency while consuming relatively little energy, meeting the energy-saving and environmental protection requirements of modern industry. Based on this, we designed the dust collection plates in a honeycomb shape for the following reasons: First, in lithium battery adhesive production, exhaust gases may contain fine particles and volatile organic compounds (VOCs). The honeycomb dust collection plates provide a large surface area, facilitating efficient capture of these particles and reducing their emissions into the environment. Second, the honeycomb structure can evenly distribute airflow, ensuring that the exhaust gas fully contacts the adsorption material (such as activated carbon or zeolite) as it passes through the subsequent treatment system, thereby improving adsorption efficiency and exhaust gas treatment effect. Finally, the channel design of the honeycomb structure reduces airflow resistance, meaning the system can operate with lower energy consumption while maintaining high exhaust gas treatment performance.

[0029] Furthermore, the alkaline scrubbing tower 400 is used to remove acidic gases, providing pretreatment conditions for subsequent processes. The alkaline scrubbing tower washes the waste gas with sprayed alkaline solution to remove acidic gases. The waste gas passes through the scrubbing tower from bottom to top, contacting the alkaline solution sprayed from top to bottom in a counter-current flow. Upon contact with the alkaline solution, the acidic gases undergo a neutralization reaction, are converted into salts and dissolved in the liquid, thus being removed from the gas phase. The alkaline scrubbing tower effectively removes acidic components from the waste gas, such as hydrogen fluoride, which is particularly important for acidic waste gases that may be generated during the production of lithium battery adhesives. By removing acidic gases, the scrubbing tower provides more ideal gas conditions for subsequent adsorption treatment, reducing corrosion and consumption of the adsorbent. The structure of the alkaline scrubbing tower 400 has not been improved and therefore will not be described in detail. The dry adsorption tower 500 uses zeolite as the adsorbent, specifically for the deep purification of gaseous fluorides and organic solvents. Zeolite has high selectivity and adsorption capacity for gaseous fluorides and organic solvents, making it particularly suitable for specific pollutants generated during the production of lithium battery adhesives. The dry adsorption tower 500 has no structural improvements and therefore will not be described in detail. The activated carbon adsorption system 600 uses the porous structure of activated carbon to adsorb and purify residual organic pollutants in the exhaust gas. As the exhaust gas passes through the activated carbon bed, pollutant molecules are captured and fixed by the surface pores of the activated carbon. Essentially, this structure is an improvement using a more suitable activated carbon as the adsorption material.

[0030] Finally, the filter 700 and exhaust system 800 are responsible for the final gas purification and emission, ensuring compliance with environmental standards. The overall system design improves filtration efficiency, extends equipment lifespan, and enhances production stability and product quality.

[0031] Compared with traditional technologies, this invention addresses the characteristics of waste gas generated during the production of lithium battery adhesives, focusing on the treatment of fine particles, gaseous fluorides, and organic solvents, thereby achieving efficient and stable operation and effectively reducing pollutant emissions.

[0032] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A lithium battery adhesive waste gas treatment system, characterized in that, include: The system comprises a waste gas collection system (100), a condensation recovery system (200), an electrostatic precipitator (300), an alkaline scrubbing tower (400), a dry adsorption tower (500), an activated carbon adsorption system (600), a filter (700), and an exhaust system (800). The waste gas collection system (100) is connected to an exhaust pipe (1). The condensation recovery system (200) is connected to the waste gas collection system (100). The outlet end of the condensation recovery system (200) is connected to the electrostatic precipitator (300). The alkaline scrubbing tower (400) is connected to the electrostatic precipitator (300). The dry adsorption tower (500) is connected to the alkaline scrubbing tower (400). The dry adsorption tower (500) is connected to the activated carbon adsorption system (600). The activated carbon adsorption system (600) is connected to the filter (700). The filter (700) is connected to the exhaust system (800). The electrostatic precipitator (300) includes: a corona discharge electrode (310), a honeycomb dust collection plate (320), a rapping device (330), and a dust collection hopper (340). The corona discharge electrode (310) is disposed between the honeycomb dust collection plates (320), which are arranged alternately. The rapping device (330) is fixed on the inner wall of the electrostatic precipitator (300) and is connected to the honeycomb dust collection plate (320) when in use. The dust collection hopper (340) is located below the honeycomb dust collection plate (320).

2. The lithium battery adhesive waste gas treatment system according to claim 1, characterized in that, The exhaust gas collection system (100) includes: a dust filter chamber (110), an exhaust chamber (120), a combustion chamber (130), a dust collection trough (140), a blower (150), and a burner (160). The dust filter chamber (110) is equipped with a dust collection trough (140). The dust filter chamber (110) is connected to the exhaust chamber (120) through a pipe. The exhaust chamber (120) is connected to the blower (150). The exhaust chamber (120) is connected to the combustion chamber (130) through a pipe. The combustion chamber (130) is equipped with a burner (160). The exhaust chamber (120) is connected to a condensation recovery system (200).

3. The lithium battery adhesive waste gas treatment system according to claim 1, characterized in that, The heat exchanger of the condensation recovery system (200) is a plate heat exchanger.

4. The lithium battery adhesive waste gas treatment system according to claim 1, characterized in that, The adsorbent in the dry adsorption tower (500) is zeolite.

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