A kind of exhaust treatment equipment of laser cutting machine for producing air bag bag of security system

Abstract

The present application relates to the field of environmental protection technology, disclose a kind of production safety system is used air bag laser cutting machine exhaust treatment equipment, including laser cutting machine, the right side of the laser cutting machine is provided with tower body, fan is installed inside the laser cutting machine, the output port of the fan is fixedly connected with corrugated vent pipe, the tower body is equipped with tangential gas inlet and clean gas outlet, the tangential gas inlet is communicated with corrugated vent pipe, liquid distributor is installed in the top of the tower body, taper liquid tank is opened in the bottom of the tower body, the right side of the taper liquid tank is fixedly connected with filter.The present application is integrated by three functions of waste gas purification, electrode on-line self-cleaning and capture oil on-line regeneration, effectively solve the industry problems of electrode coking failure, equipment frequent shutdown maintenance and high cost of liquid consumables in the treatment of laser cutting tar-containing exhaust, realize the efficient and stable purification of exhaust gas and resource recycling.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, specifically to a waste gas treatment device for a laser cutting machine for airbags used in production safety systems. Background Technology

[0002] The base material of airbags is usually high-strength nylon or polyester fiber fabric. During the production process using laser cutting, the fabric material undergoes pyrolysis and vaporization under high temperatures, producing a complex mixture of waste gas containing volatile organic compounds (VOCs), tar particles, and irritating odors. This waste gas not only pollutes the environment but also poses a threat to the health of production personnel, therefore effective purification is essential.

[0003] Currently, there are many technical bottlenecks in the treatment of such industrial waste gases. For example, although low-temperature plasma technology (such as dielectric barrier discharge) has a good decomposition effect on VOCs, when it is directly used to treat waste gas containing a large number of tar particles, the sticky tar will quickly deposit and adhere to the surface of the discharge electrode, forming an insulating layer. This phenomenon is usually called "electrode coking". Electrode coking will severely weaken or even block the generation of plasma, resulting in a sharp reduction in purification efficiency. The equipment will fail in a short period of time, and frequent shutdowns for disassembly and manual cleaning are necessary. This not only seriously affects the continuity of production, but also brings extremely high maintenance costs.

[0004] Meanwhile, if traditional liquid washing and absorption methods are used, ordinary water or alkaline solutions are ineffective at absorbing non-polar tar and most VOCs. Even if oleophilic absorbents are used, the liquid will quickly become saturated after capturing a large amount of pollutants, losing its purification capacity. The saturated waste liquid needs to be outsourced for hazardous waste treatment, which not only increases the company's operating costs but also brings the risk of secondary pollution. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a waste gas treatment device for a laser cutting machine for airbags used in production safety systems. This device solves the problems of electrode coking failure, frequent equipment shutdowns for maintenance, high cost of liquid consumables, and large amount of waste liquid generated during the treatment of tar-containing waste gas from laser cutting.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A waste gas treatment device for a laser cutting machine for airbags used in production safety systems, comprising a laser cutting machine, a tower body located on the right side of the laser cutting machine, a fan installed inside the laser cutting machine, the output port of the fan being fixedly connected to a corrugated ventilation pipe, the tower body having a tangential air inlet and a clean gas outlet, the tangential air inlet being connected to the corrugated ventilation pipe, a liquid distributor installed at the top of the tower body, a conical liquid tank opened at the bottom of the tower body, a filter fixedly connected to the right side of the conical liquid tank, a heat exchanger fixedly connected to the rear side of the filter, a circulating pump fixedly connected to the end of the heat exchanger away from the filter, the end of the circulating pump away from the heat exchanger being connected to the liquid distributor, a dielectric barrier discharge assembly located inside the tower body, an electrode cleaning assembly located outside the dielectric barrier discharge assembly, and an oil collection and regeneration assembly connected to the conical liquid tank via a bypass diversion pipe.

[0007] The dielectric barrier discharge assembly includes a central high-voltage electrode, which is disposed inside the tower body. A dielectric barrier tube is wrapped around the outside of the central high-voltage electrode. A high-frequency high-voltage power supply is installed on the outer wall of the tower body, and the high-frequency high-voltage power supply is electrically connected to the central high-voltage electrode.

[0008] Preferably, the electrode cleaning assembly includes a cleaning ring sleeved around the outside of the medium blocking tube. Multiple flexible scraping blades are provided on the inner side of the cleaning ring. A motor is installed at the top of the tower body, and a lead screw is fixedly connected to the output end of the motor. A limiting rod is fixedly connected to the side of the medium blocking tube away from the lead screw. A sliding block one and a sliding block two are fixedly connected to the outer side of the cleaning ring. The sliding block one is threaded to the outside of the lead screw, and the sliding block two is slidably connected to the outside of the limiting rod. An inner ring is provided inside the cleaning ring, and a moving block is fixedly connected to the outer wall of the inner ring. A miniature cylinder is fixedly connected to the outer side of the cleaning ring, and the piston rod of the miniature cylinder is fixedly connected to the moving block. A guide rod is fixedly connected to the bottom of the inner ring, and a guide groove is formed at the inner bottom of the cleaning ring. Multiple heavy-duty chisels are fixedly connected to the inner side of the inner ring.

[0009] Preferably, the oil collection and regeneration assembly includes an evaporation chamber body located at the rear of the tower body. The inlet of the evaporation chamber body is connected to the bypass diversion pipe. A heating jacket is provided on the outside of the evaporation chamber body. A rotor drive motor is installed on the top of the evaporation chamber body, and a rotor is fixedly connected to the output end of the rotor drive motor. A vacuum pump is provided on the right side of the evaporation chamber body and is connected to the evaporation chamber body. A condenser is fixedly connected to the steam outlet of the evaporation chamber body. The outlet of the condenser is connected to the conical liquid tank through a regenerated oil return pipe. A tar residue discharge outlet is provided at the bottom of the evaporation chamber body, and a slag discharge pump is connected to the tar residue discharge outlet.

[0010] Preferably, the inner wall of the tower body is a grounded collecting electrode and is electrically connected to the grounding terminal of the high-frequency high-voltage power supply.

[0011] Preferably, the dielectric barrier tube is made of quartz tube or ceramic tube material.

[0012] Preferably, a central controller is provided on the rear side of the heat exchanger, and an electric field signal monitor is provided on the left side of the tower body. The electric field signal monitor is electrically connected to the high-frequency high-voltage power supply and is used to monitor the electric field signal and send it to the central controller. A concentration sensor is installed on the inner wall of the conical liquid tank and is used to monitor the concentration of the collected oil and send it to the central controller.

[0013] Preferably, the central controller is electrically connected to the motor and the micro cylinder, and is used to control the operation of the electrode cleaning assembly according to the signal from the electric field signal monitor.

[0014] Preferably, the central controller is electrically connected to the rotor drive motor, vacuum pump and slag discharge pump, and is used to control the operation of the oil collection and regeneration assembly based on the signal from the concentration sensor.

[0015] Preferably, a demister is installed at the clean gas outlet of the tower.

[0016] Preferably, an equipment frame is installed at the bottom of the tower body, and an observation window is installed on the outer wall of the tower body.

[0017] This invention provides an exhaust gas treatment device for a laser cutting machine used in the production of airbags for safety systems. It has the following beneficial effects:

[0018] 1. This invention utilizes the synergistic effect of a dielectric barrier discharge component and an oleophilic liquid film installed within the tower body. The former efficiently decomposes high-concentration gaseous organic matter, while the latter captures tar particles through a flowing liquid film formed by a liquid distributor and continuously flushes the outer wall of the dielectric barrier tube. This effectively solves the problem of electrode coking and failure when treating tar-containing waste gas using traditional plasma technology, ensuring that the equipment can treat complex component waste gas with long-term, high-efficiency operation.

[0019] 2. This invention integrates an electrode cleaning component intelligently controlled by a central controller. The central controller can determine the electrode contamination status based on real-time data from the electric field signal monitor and automatically activate the cleaning component for online scraping maintenance, replacing traditional manual shutdown for repairs, reducing manual intervention and maintenance costs, and improving equipment operational reliability.

[0020] 3. By incorporating an oil-collecting and regeneration component, online regeneration of saturated oleophilic liquids can be achieved. Utilizing the principle of vacuum thin-film evaporation, pure oil is separated from tar residue within the evaporation chamber, and the pure oil is then recycled via a condenser. This solves the problem of traditional absorption methods requiring periodic external transportation of large quantities of waste liquid, achieving a closed-loop circulation of the collection medium, significantly reducing consumable costs and the generation of hazardous waste, resulting in substantial economic and environmental benefits. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the tower body of the present invention;

[0024] Figure 4 This is a schematic diagram of the cleaning ring of the present invention;

[0025] Figure 5 This is a schematic diagram of the interior of the cleaning ring of the present invention;

[0026] Figure 6 This is a schematic diagram of the guide rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the fan of the present invention;

[0028] Figure 8 This is a schematic diagram of the liquid distributor of the present invention;

[0029] Figure 9 This is a schematic diagram of the dielectric barrier discharge assembly of the present invention;

[0030] Figure 10 This is a schematic diagram of the interior of the evaporation chamber of the present invention.

[0031] The components include: 1. Laser cutting machine; 2. Corrugated ventilation duct; 3. Tower body; 4. Tangential air inlet; 5. Clean gas outlet; 6. Conical liquid tank; 7. Dielectric barrier discharge assembly; 71. Central high-voltage electrode; 72. Dielectric barrier tube; 73. High-frequency high-voltage power supply; 8. Liquid distributor; 9. Electrode cleaning assembly; 91. Motor; 92. Lead screw; 93. Sliding block one; 94. Limiting rod; 95. Cleaning ring; 96. Flexible scraper; 97. Inner ring; 98. Miniature cylinder; 99. Guide rod; 910. Guide groove; 911. Heavy-duty chisel; 912. Electric field signal. Monitor; 913, Sliding Block II; 914, Moving Block; 10, Circulating Pump; 11, Filter; 12, Heat Exchanger; 13, Bypass Diverter Pipe; 14, Oil Collection and Regeneration Assembly; 141, Evaporation Chamber Main Body; 142, Heating Jacket; 143, Rotor; 144, Rotor Drive Motor; 145, Vacuum Pump; 146, Condenser; 147, Concentration Sensor; 148, Tar Residue Discharge Port; 149, Regenerated Oil Return Pipe; 15, Central Controller; 16, Demister; 17, Observation Window; 18, Equipment Frame; 19, Slag Discharge Pump; 20, Fan. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see the appendix Figure 1 - Appendix Figure 10This invention provides an exhaust gas treatment device for a laser cutting machine for airbags used in production safety systems. The device includes a laser cutting machine 1, a tower body 3 on the right side of the laser cutting machine 1, a fan 20 installed inside the laser cutting machine 1, and a corrugated ventilation pipe 2 fixedly connected to the output port of the fan 20. The tower body 3 has a tangential air inlet 4 and a clean gas outlet 5. The tangential air inlet 4 is connected to the corrugated ventilation pipe 2. A liquid distributor 8 is installed at the top inside the tower body 3, and a conical liquid tank 6 is opened at the bottom of the tower body 3. A filter 11 is fixedly connected to the right side of the conical liquid tank 6, and a heat exchanger 12 is fixedly connected to the rear side of the filter 11. A circulation pump 10 is fixedly connected to the end of the heat exchanger 12 away from the filter 11. One end of the exchanger 12 is connected to the liquid distributor 8. A dielectric barrier discharge assembly 7 is installed inside the tower body 3, and an electrode cleaning assembly 9 is installed outside the dielectric barrier discharge assembly 7. The conical liquid tank 6 is connected to the oil collection and regeneration assembly 14 through the bypass diversion pipe 13. The dielectric barrier discharge assembly 7 includes a central high-voltage electrode 71, which is installed inside the tower body 3. A dielectric barrier tube 72 is wrapped around the outside of the central high-voltage electrode 71. The dielectric barrier tube 72 is made of quartz tube or ceramic tube material. A high-frequency high-voltage power supply 73 is installed on the outer wall of the tower body 3. The high-frequency high-voltage power supply 73 is electrically connected to the central high-voltage electrode 71. The inner wall of the tower body 3 is a grounded collecting electrode and is electrically connected to the grounding terminal of the high-frequency high-voltage power supply 73.

[0034] Specifically, during initial operation, a specific type of initial oleophilic liquid needs to be injected into the conical liquid tank 6. This liquid is typically a high-boiling-point, low-volatility mineral oil or synthetic oil. Its molecular structure gives it a strong affinity and dissolving ability for non-polar organic pollutants such as tar and oil mist in laser cutting exhaust gas, such as transformer oil. When the equipment is working, the fan 20 sends exhaust gas containing high concentrations of organic VOCs and tar particles into the tower body 3 at high speed through the tangential air inlet 4, forming a rotating airflow. At the same time, the circulation pump 10 circulates this oleophilic liquid in the conical liquid tank 6. After larger impurities are removed by the filter 11 and the temperature is regulated by the heat exchanger 12, the liquid distributor 8, which includes an inner spray port and an outer overflow port, flows to the inner wall of the tower body 3 through the outer overflow port, forming a liquid film. This liquid film primarily serves to capture tar particles thrown onto the tower wall by centrifugal force and maintain the cleanliness of the tower wall, which acts as a grounding electrode. Tar particles and droplets are thrown towards and efficiently captured and dissolved on this oleophilic liquid film. As contaminants are continuously captured, the initially clean oleophilic liquid gradually transforms into a tar-rich collected oil. The inner spray nozzles evenly spray the medium-blocking pipe 72. Under the influence of gravity, the liquid forms a uniform liquid film along the outer surface of the dielectric barrier tube 72 and flows downwards, rinsing and self-cleaning the electrodes online. The airflow continues upwards through the DBD discharge zone formed between the central high-voltage electrode 71 and the grounding tower wall. Under the high-frequency high-voltage electric field, a large number of high-energy electrons and active particles are generated, breaking and decomposing the molecular chains of gaseous VOCs. Utilizing the high insulating properties of the oleophilic liquid, the liquid film forms a second flowing dielectric barrier layer on the surface of the grounding electrode, which not only dissolves the tar but also prevents short-circuit breakdown caused by the accumulation of conductive carbon powder. This solves the fatal defect of traditional DBD technology in treating tar-containing waste gas, where the electrode surface is easily contaminated by tar, leading to discharge failure. By decomposing gaseous pollutants with plasma, capturing particulate pollutants with the oleophilic liquid film, and simultaneously cleaning the electrodes online, efficient, stable, and long-cycle purification of complex component waste gas is achieved.

[0035] Please see the appendix Figure 3 - Appendix Figure 6The electrode cleaning assembly 9 includes a cleaning ring 95, which is sleeved on the outside of the medium blocking tube 72. Multiple flexible scraping blades 96 are provided on the inner side of the cleaning ring 95. A motor 91 is installed on the top of the tower body 3. A lead screw 92 is fixedly connected to the output end of the motor 91. A limit rod 94 is fixedly connected to the side of the medium blocking tube 72 away from the lead screw 92. A sliding block 1 93 and a sliding block 2 913 are fixedly connected to the outside of the cleaning ring 95. The sliding block 1 93 is threaded to the outside of the lead screw 92, and the sliding block 2 913 is slidably connected to the outside of the limit rod 94. An inner ring 97 is provided inside the cleaning ring 95. A moving block 914 is fixedly connected to the outer wall of the inner ring 97. A micro cylinder 98 is fixedly connected to the outside of the cleaning ring 95. The piston rod of the micro cylinder 98 is fixedly connected to the moving block 914. A guide rod 99 is fixedly connected to the bottom of the inner ring 97. A guide groove 910 is opened at the inner bottom of the cleaning ring 95. Multiple heavy-duty chisel blades 911 are fixedly connected to the inner side of the inner ring 97.

[0036] Specifically, during operation, when the central controller 15 issues a cleaning command, the motor 91 rotates, driving the threaded sliding block 93 via the lead screw 92. This, in turn, causes the entire cleaning ring 95 to reciprocate up and down along the axial direction of the media blocking tube 72. During this process, the flexible scraper 96 on the inner side can scrape off the loose dirt adhering to the surface, solving the problem that liquid film flushing alone cannot remove stubborn, carbonized coking deposits formed after long-term operation. When encountering such stubborn dirt, the micro cylinder 98 is activated, and its piston rod pushes the moving block 914, causing the inner ring 97 to radially retract under the guidance of the guide rod 99 and the guide groove 910. This forces the heavy-duty chisel 911 on the inner side to press tightly against the surface of the media blocking tube 72, using its high hardness to powerfully scrape and break down the hard scale. The achieved effect is automated, multi-stage deep cleaning without stopping the machine, ensuring discharge efficiency and long-term stable operation of the equipment, and greatly reducing manual maintenance costs and downtime losses.

[0037] Please see the appendix Figure 2 and attached Figure 10 The oil collection and regeneration assembly 14 includes an evaporation chamber body 141, which is located on the rear side of the tower body 3. The inlet of the evaporation chamber body 141 is connected to the bypass diversion pipe 13. A heating jacket 142 is provided outside the evaporation chamber body 141. A rotor drive motor 144 is installed on the top of the evaporation chamber body 141. A rotor 143 is fixedly connected to the output end of the rotor drive motor 144. A vacuum pump 145 is provided on the right side of the evaporation chamber body 141 and is connected to the evaporation chamber body 141. A condenser 146 is fixedly connected to the steam outlet of the evaporation chamber body 141. The outlet of the condenser 146 is connected to the conical liquid tank 6 through the regeneration oil return pipe 149. A tar residue discharge outlet 148 is provided at the bottom of the evaporation chamber body 141 and a slag discharge pump 19 is connected to the tar residue discharge outlet 148.

[0038] Specifically, during operation, when the central controller 15 detects that the concentration of the collected oil exceeds the standard through the concentration sensor 147, it will open the bypass diversion pipe 13 to send a small portion of the dirty oil into the evaporation chamber body 141. The rotor drive motor 144 drives the rotor 143 to rotate at high speed, causing the dirty oil to be flung into an extremely thin liquid film on the inner wall heated by the heating jacket 142. At the same time, the vacuum pump 145 evacuates the evaporation chamber body 141, significantly reducing the boiling point of the oil. This design solves the problems of traditional absorption methods, which require the waste liquid to be transported and treated as hazardous waste, resulting in high operating costs and secondary pollution. Under the conditions of low temperature, vacuum, and large surface area, the effective components in the collected oil are rapidly evaporated into pure vapor, while high-boiling-point tar, impurities, and other pollutants remain at the bottom. After the pure steam enters the condenser 146 and is cooled into liquid, it returns to the conical liquid tank 6 through the regenerated oil return pipe 149 for continued use; the concentrated tar residue is periodically discharged by the slag discharge pump 19. The effect is to realize the closed-loop circulation and resource utilization of the captured oil, greatly reduce the consumption of consumables and the amount of hazardous waste generated, and significantly reduce the economic and environmental costs of equipment operation.

[0039] Please see the appendix Figure 1 - Appendix Figure 3 A central controller 15 is installed on the rear side of the heat exchanger 12, and an electric field signal monitor 912 is installed on the left side of the tower body 3. The electric field signal monitor 912 is electrically connected to the high-frequency high-voltage power supply 73 and is used to monitor the electric field signal and send it to the central controller 15. The concentration sensor 147 is installed in the conical liquid tank 6. The central controller 15 is electrically connected to the motor 91 and the micro cylinder 98 and is used to control the operation of the electrode cleaning assembly 9 according to the signal of the electric field signal monitor 912. The central controller 15 is electrically connected to the rotor drive motor 144, the vacuum pump 145 and the slag discharge pump 19 and is used to control the operation of the oil collection and regeneration assembly 14 according to the signal of the concentration sensor 147.

[0040] Specifically, during operation, the electric field signal monitor 912 monitors key parameters such as voltage and current waveforms of the DBD discharge in real time. When scale forms on the surface of the dielectric barrier tube 72, it will cause characteristic deviations in the discharge parameters. The concentration sensor 147 monitors the concentration of contaminants in the circulating liquid in real time, solving the problem that traditional equipment relies on manual experience or fixed cycles for maintenance and cannot accurately respond to changes in actual working conditions. The central controller 15, as the brain of the equipment, analyzes the sensor data based on preset logic: once an abnormal electric field signal is detected, it is determined that the electrode needs to be cleaned, and the electrode cleaning component 9 is automatically started; once the concentration of the collected oil is detected to be excessive, it is determined that the liquid needs to be regenerated, and the collected oil regeneration component 14 is automatically started. The effect is that the equipment is intelligent, automated, and maintained on demand, avoiding unnecessary energy consumption and mechanical wear, always operating in the best condition, and can provide early warning of faults, thus improving the overall operating efficiency and reliability.

[0041] Please see the appendix Figure 1 - Appendix Figure 2 A demister 16 is installed at the clean gas outlet 5 of the tower body 3, an equipment frame 18 is installed at the bottom of the tower body 3, and an observation window 17 is installed on the outer wall of the tower body 3.

[0042] Specifically, before leaving the clean gas outlet 5, the purified gas passes through the demister 16. Its special internal structure effectively intercepts tiny oleophilic liquid droplets entrained in the airflow, preventing them from being carried into the atmosphere and causing secondary pollution. The equipment frame 18 provides stable support for the heavy-duty tower body 3 and all additional components, ensuring the safety and stability of the equipment. The observation window 17 allows operators to safely observe the glow state of the DBD discharge inside the tower body 3, the uniformity of the liquid film distribution, and the cleanliness of the electrodes during equipment operation.

[0043] Working Principle: Before the first operation of this device, an initial oleophilic liquid needs to be injected into the conical liquid tank 6. During operation, the blower 20 sends the tar-containing exhaust gas generated by the laser cutting machine 1 into the tower body 3 through the tangential air inlet 4 to form a rotating airflow. At the same time, the circulating pump 10 sends the oleophilic liquid through the filter 11 and heat exchanger 12, and then the liquid distributor 8 forms a uniform liquid film on the inner wall of the tower body 3. The tar particles in the exhaust gas are efficiently captured by the oleophilic liquid film under centrifugal force. Subsequently, the airflow rises to the area of ​​the dielectric barrier discharge component 7. Driven by the high-frequency high-voltage power supply 73, plasma is generated between the central high-voltage electrode 71 and the grounded tower wall, which decomposes the gaseous organic matter. Meanwhile, the continuously flowing liquid film continuously washes the outer wall of the dielectric barrier tube 72, achieving preliminary self-cleaning. When the electric field signal monitor 912 detects an abnormal discharge caused by stubborn scale, the central controller 15 will automatically start the electrode cleaning component 9, which will drive the cleaning ring 95 with a flexible scraper 96 and a heavy-duty chisel 911 via the motor 91 to perform online deep scraping cleaning. When the concentration sensor 147 detects that the collected oil is saturated with contamination, the central controller 15 will start the collected oil regeneration component 14, which will pump the dirty oil into the evaporation chamber body 141. The pure oil and tar residue will be separated by vacuum thin film evaporation technology. The former will be cooled by the condenser 146 and returned to the conical liquid tank 6 for recycling, while the latter will be discharged by the slag discharge pump 19. Finally, the clean gas that has undergone deep purification will pass through the demister 16 at the clean gas outlet 5 to remove entrained droplets and will be discharged in compliance with standards.

Claims

1. A waste gas treatment device for a laser cutting machine for airbags used in production safety systems, comprising a laser cutting machine (1), characterized in that, A tower body (3) is provided on the right side of the laser cutting machine (1). A fan (20) is installed inside the laser cutting machine (1). The output port of the fan (20) is fixedly connected to a corrugated ventilation pipe (2). The tower body (3) is provided with a tangential air inlet (4) and a clean gas outlet (5). The tangential air inlet (4) is connected to the corrugated ventilation pipe (2). The tower body (3) is equipped with a dielectric barrier discharge assembly (7), which includes a central high-voltage electrode (71). The central high-voltage electrode (71) is located inside the tower body (3), and a dielectric barrier tube (72) is wrapped around the outside of the central high-voltage electrode (71). A high-frequency high-voltage power supply (73) is installed on the outer wall of the tower body (3), and the high-frequency high-voltage power supply (73) is electrically connected to the central high-voltage electrode (71). A liquid distributor (8) is installed at the top inside the tower body (3). The oleophilic liquid flowing out of the liquid distributor (8) forms a liquid film on the inner wall of the tower body (3) and the outer surface of the medium blocking pipe (72) for cleaning. The bottom of the tower body (3) is provided with a conical liquid tank (6). A filter (11) is fixedly connected to the right side of the conical liquid tank (6). A heat exchanger (12) is fixedly connected to the rear side of the filter (11). A circulation pump (10) is fixedly connected to the end of the heat exchanger (12) away from the filter (11). The end of the circulation pump (10) away from the heat exchanger (12) is connected to a liquid distributor (8). An electrode cleaning component (9) is provided on the outside of the dielectric barrier discharge component (7). The conical liquid tank (6) is connected to an oil collection and regeneration component (14) through a bypass diversion pipe (13) for online regeneration of saturated oleophilic liquid and recycling. The electrode cleaning assembly (9) includes a cleaning ring (95) which is sleeved on the outside of the medium blocking tube (72). The inner side of the cleaning ring (95) is provided with multiple flexible scraping blades (96). A motor (91) is installed on the top of the tower body (3). A lead screw (92) is fixedly connected to the output end of the motor (91). A limit rod (94) is fixedly connected to the side of the medium blocking tube (72) away from the lead screw (92). A sliding block one (93) and a sliding block two (913) are fixedly connected to the outside of the cleaning ring (95). The sliding block one (93) is threaded to the lead screw (92). On the outside, the sliding block two (913) is slidably connected to the outside of the limiting rod (94). The cleaning ring (95) is provided with an inner ring (97). The outer wall of the inner ring (97) is fixedly connected to a moving block (914). The outer side of the cleaning ring (95) is fixedly connected to a micro cylinder (98). The piston rod of the micro cylinder (98) is fixedly connected to the moving block (914). The bottom of the inner ring (97) is fixedly connected to a guide rod (99). The bottom of the cleaning ring (95) is provided with a guide groove (910). The inner side of the inner ring (97) is fixedly connected to multiple heavy-duty chisels (911).

2. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 1, characterized in that, The oil capture and regeneration assembly (14) includes an evaporation chamber body (141), which is located on the rear side of the tower body (3). The inlet of the evaporation chamber body (141) is connected to the bypass diversion pipe (13). A heating jacket (142) is provided outside the evaporation chamber body (141). A rotor drive motor (144) is installed on the top of the evaporation chamber body (141). A rotor (143) is fixedly connected to the output end of the rotor drive motor (144). A vacuum pump (145) is provided on the right side of the main body (141). The vacuum pump (145) is connected to the main body of the evaporation chamber (141). The steam outlet of the main body of the evaporation chamber (141) is fixedly connected to a condenser (146). The outlet of the condenser (146) is connected to the conical liquid tank (6) through a regenerated oil return pipe (149). A tar residue discharge outlet (148) is provided at the bottom of the main body of the evaporation chamber (141). A slag discharge pump (19) is connected to the tar residue discharge outlet (148).

3. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 1, characterized in that, The inner wall of the tower body (3) is a grounded collecting electrode and is electrically connected to the grounding terminal of the high-frequency high-voltage power supply (73).

4. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 1, characterized in that, The medium barrier tube (72) is made of quartz tube or ceramic tube material.

5. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 2, characterized in that, A central controller (15) is provided on the rear side of the heat exchanger (12), and an electric field signal monitor (912) is provided on the left side of the tower body (3). The electric field signal monitor (912) is electrically connected to the high-frequency high-voltage power supply (73) and is used to monitor the electric field signal and send it to the central controller (15). A concentration sensor (147) is installed on the inner wall of the conical liquid tank (6) and is used to monitor the concentration of pollutants in the circulating liquid in real time and send it to the central controller (15).

6. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 5, characterized in that, The central controller (15) is electrically connected to the motor (91) and the micro cylinder (98) and is used to control the operation of the electrode cleaning assembly (9) according to the signal of the electric field signal monitor (912).

7. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 5, characterized in that, The central controller (15) is electrically connected to the rotor drive motor (144), vacuum pump (145) and slag discharge pump (19), and is used to control the operation of the oil capture and regeneration assembly (14) according to the signal from the concentration sensor (147).

8. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 1, characterized in that, A demister (16) is installed at the clean gas outlet (5) of the tower body (3).

9. The exhaust gas treatment equipment for a laser cutting machine for airbags used in production safety systems according to claim 1, characterized in that, The bottom of the tower body (3) is equipped with an equipment frame (18), and the outer wall of the tower body (3) is equipped with an observation window (17).

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