Flue gas treatment equipment based on laser decontamination

Abstract

The invention provides flue gas treatment equipment based on laser decontamination, the flue gas treatment equipment comprises a laser decontamination box assembly and a laser transmission mechanism with transmission glass, the laser decontamination box assembly comprises a closed box filled with argon, an observation window and a processing table; the observation window is installed on one side of the inner side wall of the closed box. The gas guide mechanism is matched with the flue gas treatment mechanism, argon in the closed box and flue gas generated in the decontamination process are pumped out through the upper gas suction frame and the lower gas suction frame, and the argon and the flue gas are injected into the flat blowing layer gas guide frame, the steady flow layer gas guide frame and the direct flow layer gas guide frame again; a flat blowing layer, a steady flow layer and a direct flow layer which are distributed up and down and circularly flow are formed in the closed box, so that a plurality of layers of air curtains are formed between the transmission glass and the workpiece, and smoke and aerosol are prevented from being in direct contact with a glass bracket; in addition, argon in the closed box can be recycled, external air is not needed, and the pollution risk is effectively reduced.

Description

Technical Field

[0001] This invention relates to a laser-based fume treatment device, specifically a laser-based fume treatment device, and belongs to the field of laser decontamination technology. Background Technology

[0002] Full-surface decontamination of workpieces utilizes laser cleaning technology. A high-peak-power, short-pulse laser beam interacts with contaminants, employing photothermal effects (vaporization, ablation) and photomechanical effects (shock wave ablation) to remove surface radioactive substances, avoiding secondary contamination. Current laser decontamination treatments for radioactive workpieces typically involve direct laser irradiation to remove surface contaminants. However, this process generates fumes and aerosols, which can contaminate the laser cleaning head lens, affecting light transmission, reducing laser transmittance, and consequently decreasing processing efficiency and lifespan.

[0003] A Chinese patent titled "A Dust Treatment System for Laser Decontamination" (publication number CN215236643U) discloses a dust treatment technology that effectively adsorbs radioactive dust from different directions by setting up multiple dust adsorption devices, increasing the adsorption range and effect. The system utilizes a combination of a dual-head amplifier and an air compressor to create a negative pressure state inside the cabinet. However, while this system can improve the adsorption efficiency of dust and fumes and prevent dust and fumes from leaking out, it cannot prevent dust and fumes from coming into contact with the laser cleaning head, and the problem of lens contamination still exists.

[0004] Chinese patent CN215314438U, entitled "A Dust Removal Device for Laser Decontamination," discloses a dust removal technology for laser decontamination. Through the coordinated design of the housing and adsorption components, it effectively solves the problem of existing dust removal devices failing to effectively remove dust from the inner wall of the sealed chamber. This causes dust to easily re-entrain and disperse outside the sealed chamber during workpiece removal or insertion, resulting in environmental pollution. However, it still cannot prevent direct contact between dust and the laser cleaning head, and the air inside the device cannot be circulated. During laser decontamination, external air is required to participate in or maintain a negative pressure state inside the device, posing a risk of polluting the working environment.

[0005] Therefore, a flue gas treatment device based on laser decontamination is proposed. Summary of the Invention

[0006] In view of this, the present invention provides a flue gas treatment device based on laser decontamination to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0007] The technical solution of this invention is implemented as follows: a flue gas treatment device based on laser decontamination includes a laser decontamination box assembly and a laser transmission mechanism with transmission glass. The laser decontamination box assembly includes a closed box filled with argon gas, an observation window, and a processing table.

[0008] The observation window is installed on one side of the inner wall of the enclosed box, the processing table is installed in the middle of the inner wall of the enclosed box, the laser transmission mechanism is installed on the top of the inner wall of the enclosed box, a disassembly and assembly auxiliary mechanism is installed between the top of the inner wall of the enclosed box and the laser transmission mechanism, a multi-layer air curtain mechanism is installed on both sides of the inner wall of the enclosed box, a flue gas treatment mechanism is installed on one side of the enclosed box, and a gas guiding mechanism is installed between the flue gas treatment mechanism and the enclosed box.

[0009] The laser transmission mechanism is used to separate the laser cleaning head from the workpiece and is transparent to light.

[0010] The disassembly and assembly auxiliary mechanism is used to seal the connection between the laser transmission mechanism and the enclosed box, so that the laser transmission mechanism can be quickly replaced.

[0011] The multi-layer air curtain mechanism includes a flat-blowing air guide frame, a flow-stabilizing air guide frame, a direct-flow air guide frame, an upper suction frame, and a lower suction frame.

[0012] The flat-blowing air guide frame is connected to the top of one side of the sealed box, the flow-stabilizing air guide frame is connected to the middle of one side of the sealed box, the direct-flow air guide frame is connected to the bottom of one side of the sealed box, the upper suction frame is connected to the top of the other side of the sealed box, and the lower suction frame is connected to the bottom of the other side of the sealed box.

[0013] The gas guiding mechanism, in conjunction with the flue gas treatment mechanism, uses the upper and lower suction frames to extract the argon gas and the flue gas generated during the decontamination process from the sealed box. After being separated by the flue gas treatment mechanism, the argon gas is injected into the flat blowing layer gas guide frame, the stabilizing layer gas guide frame, and the direct flow layer gas guide frame, so that the flat blowing layer, the stabilizing layer, and the direct flow layer are distributed vertically and circulate within the sealed box.

[0014] More preferably, the laser transmission mechanism further includes a glass support and a sealing strip;

[0015] The transmissive glass is fixedly connected to the top of the inner wall of the glass bracket, one end of the sealing strip is fixedly connected to the top of the inner wall of the enclosed box, and the outer wall of the glass bracket is slidably connected to the inner wall of the sealing strip.

[0016] More preferably, the disassembly and assembly auxiliary mechanism includes a knob, a first gear, a gear ring, four second gears, four clamping plates, and an inner support plate;

[0017] The inner support plate is fixedly connected to the bottom of the inner wall of the enclosed box. The end of the sealing strip away from the enclosed box is fixedly connected to the bottom of the inner wall of the inner support plate. The knob is rotatably connected to one side of the upper surface of the enclosed box. The first gear, the gear ring, and the four second gears are all rotatably connected to the bottom of the inner wall of the inner support plate. One end of the knob passes through the enclosed box and is fixedly connected to one end of the first gear. The outer wall of the gear ring meshes with the outer wall of the first gear. The outer walls of the four second gears mesh with the inner wall of the gear ring. The four clamping plates are slidably connected to the inner wall of the inner support plate. One side of each of the four clamping plates meshes with the outer wall of the four second gears. The clamping plates are used to press the sealing strip into the glass bracket to seal and limit the glass bracket.

[0018] More preferably, the multi-layer air curtain mechanism further includes a permeable plate and a diversion baffle;

[0019] The permeable plates are respectively fixedly connected to the ends of the flat blowing layer air guide frame, the stabilizing layer air guide frame, and the direct flow layer air guide frame away from the sealed box. The diversion baffle is located between the upper air intake frame and the lower air intake frame and is fixedly connected to one side of the inner wall of the sealed box.

[0020] More preferably, the flue gas treatment mechanism includes a flue gas treatment box, a push-pull inner support, four mounting brackets, two locking mechanisms, a geared motor, two take-up and unwinding rollers, a take-up bag, and several glass fiber filter membranes;

[0021] The flue gas treatment box is installed on one side of the enclosed box. The push-pull inner bracket is slidably connected to the inner wall of the flue gas treatment box. The four mounting brackets are symmetrically fixed to the inner wall of the push-pull inner bracket in pairs. The two locking mechanisms and take-up and unwinding rollers are respectively arranged between the four mounting brackets in pairs. The reduction motor is installed on one side of one of the mounting brackets. The take-up bag is wound between the two take-up and unwinding rollers. The plurality of glass fiber filter membranes are all fixedly connected to the inner wall of the take-up bag.

[0022] More preferably, both of the engagement mechanisms consist of a connecting shaft, a connecting plate, a spring, and two engagement plates;

[0023] The outer wall of the connecting shaft is slidably connected to the inner wall of the mounting bracket. The connecting plate is fixedly connected to one end of the connecting shaft. One end of the spring is fixedly connected to one side of the connecting plate, and the other end of the spring is fixedly connected to one side of the mounting bracket. One locking plate is rotatably connected to the other end of the connecting shaft, and the other locking plate is rotatably connected to one side of another processing table. The output shaft of the reduction motor is fixedly connected to one end of the locking plate of the locking mechanism.

[0024] More preferably, the air guiding mechanism includes a first fan, a second fan, a first air guiding pipe, a second air guiding pipe, a bundled tube box, a constant flow air supply pipe, and a flat blowing air supply pipe;

[0025] The first fan is installed on the top side of the flue gas treatment box, and the second fan is installed on the bottom side of the flue gas treatment box. The first fan and the second fan are respectively corresponding to the upper suction frame and the lower suction frame. The bundled tube box is fixedly connected to the bottom of the enclosed box. One end of the first air guide pipe is connected to one side of the first fan, and one end of the second air guide pipe is connected to one end of the second fan. Both the first air guide pipe and the second air guide pipe penetrate the inner wall of the bundled tube box. The other end of the second air guide pipe is connected to one side of the DC layer air guide frame. One end of the stable flow air supply pipe is connected to one side of the stable flow layer air guide frame, and the other end of the stable flow air supply pipe is connected to the outer wall of the first air guide pipe. One end of the flat-blown air supply pipe is connected to one side of the flat-blown layer air guide frame, and the other end of the flat-blown air supply pipe is connected to one end of the first air guide pipe.

[0026] More preferably, a pressing mechanism is installed in the middle of the inner wall of the flue gas treatment mechanism, the pressing mechanism including an electric push rod, a pressing frame and two corrugated pipes;

[0027] The electric push rod is installed on one side of the inner wall of the flue gas treatment box. The pressing frame is fixedly connected to the piston rod of the electric push rod. One side of the pressing frame is correspondingly arranged with two glass fiber filter membranes, an upper suction frame, and a lower suction frame. One end of each of the two corrugated pipes is connected to one side of the pressing frame, and the other end of each of the two corrugated pipes is connected to one side of the inner wall of the flue gas treatment box. The two corrugated pipes are respectively correspondingly arranged with the first fan and the second fan.

[0028] More preferably, a sealing mounting plate is installed on the side of the enclosed box away from the observation window, and a handle is fixedly connected to one side of the push-pull inner bracket. The sealing mounting plate is open, semi-open, or sealed.

[0029] More preferably, the bottom of the inner sidewall of the inner support plate is provided with four guide grooves, and four guide strips are slidably connected to the inner sidewalls of the four guide grooves. The four guide strips are respectively fixedly connected to the bottom of the four card plates.

[0030] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions:

[0031] I. This invention uses a laser transmission mechanism to separate the laser cleaning head from the workpiece, preventing the smoke and aerosols generated during the laser cleaning process from directly contacting the laser cleaning head. This avoids contaminating the cleaning head and effectively prevents the cleaning head from aging rapidly due to radiation. Furthermore, the light transmittance of the laser transmission mechanism ensures the cleaning effect of the laser on the workpiece.

[0032] II. This invention utilizes a flat-blown gas guide frame, a flow-stabilizing gas guide frame, and a direct-flow gas guide frame to blow argon gas into a sealed chamber. Then, through a gas guiding mechanism in conjunction with a flue gas treatment mechanism, upper and lower suction frames are used to extract the argon gas and the flue gas generated during the decontamination process from the sealed chamber. After separation by the flue gas treatment mechanism, the argon gas is reinjected into the flat-blown gas guide frame, the flow-stabilizing gas guide frame, and the direct-flow gas guide frame, respectively. This creates a vertically distributed and circulating flat-blown layer, a flow-stabilizing layer, and a direct-flow layer within the sealed chamber. This forms a multi-layered air curtain between the transmission glass and the workpiece, preventing direct contact between the flue gas and aerosols and the glass support, thus ensuring the light transmittance of the glass support. Furthermore, the argon gas within the sealed chamber can be recycled without the need for external air, effectively reducing the risk of contamination.

[0033] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a structural diagram of the present invention;

[0036] Figure 2 This is a cross-sectional view of the structure from a first perspective of the present invention;

[0037] Figure 3 This is a cross-sectional view of the structure from a second perspective of the present invention;

[0038] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of area A structure;

[0039] Figure 5 This is a side view of the structure of the present invention;

[0040] Figure 6This is a cross-sectional view of the enclosed box of the present invention;

[0041] Figure 7 This is an isometric view of the inner support plate of the present invention;

[0042] Figure 8 This is an isometric view of the push-pull inner support of the present invention;

[0043] Figure 9 This is a cross-sectional view of the push-pull internal support structure of the present invention;

[0044] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure of region B;

[0045] Figure 11 This is an isometric view of the take-up and untake-down rollers of the present invention;

[0046] Figure 12 This is an isometric view of the snap-fit ​​plate of the present invention.

[0047] Reference numerals: 1. Laser cleaning box assembly; 2. Laser transmission mechanism; 3. Disassembly and assembly auxiliary mechanism; 4. Multi-layer air curtain mechanism; 5. Air guiding mechanism; 6. Flue gas treatment mechanism; 7. Pressing mechanism; 101. Sealed box; 102. Observation window; 103. Processing table; 201. Glass support; 202. Transmitting glass; 203. Sealing strip; 301. Knob; 302. First gear; 303. Gear ring; 304. Second gear; 305. Clamping plate; 306. Inner support plate; 401. Flat blowing layer air guide frame; 402. Flow stabilizing layer air guide frame; 403. Direct flow layer air guide frame; 404. Ventilation plate; 405. Diverting baffle; 406. Upper suction frame; 407. Lower suction frame. 501. Air frame; 502. First fan; 503. Second fan; 504. First air guide pipe; 505. Second air guide pipe; 506. Bundled tube box; 507. Flow-stabilizing air supply pipe; 508. Flat-blowing air supply pipe; 601. Flue gas treatment box; 602. Push-pull inner support; 603. Mounting bracket; 604. Clamping mechanism; 605. Gear motor; 606. Take-up and unload roller; 607. Take-up bag; 608. Glass fiber filter membrane; 641. Connecting shaft; 642. Connecting plate; 643. Spring; 644. Clamping plate; 701. Electric push rod; 702. Pressing frame; 703. Corrugated pipe; 81. Sealing mounting plate; 82. Handle; 83. Guide groove; 84. Guide strip. Detailed Implementation

[0048] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0049] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0050] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0051] like Figures 1-12 As shown, this embodiment of the invention provides a flue gas treatment device based on laser decontamination, including a laser decontamination box assembly 1 and a laser transmission mechanism 2 with a transmission glass 202. The laser decontamination box assembly 1 includes a closed box 101 filled with argon gas, an observation window 102 and a processing table 103.

[0052] Among them, the observation window 102 is installed on one side of the inner wall of the enclosed box 101, the processing table 103 is installed in the middle of the inner wall of the enclosed box 101, the laser transmission mechanism 2 is installed on the top of the inner wall of the enclosed box 101, the disassembly and assembly auxiliary mechanism 3 is installed between the top of the inner wall of the enclosed box 101 and the laser transmission mechanism 2, the multi-layer air curtain mechanism 4 is installed on both sides of the inner wall of the enclosed box 101, the flue gas treatment mechanism 6 is installed on one side of the enclosed box 101, and the air guiding mechanism 5 is installed between the flue gas treatment mechanism 6 and the enclosed box 101.

[0053] Among them, the laser transmission mechanism 2 is used to separate the laser cleaning head from the workpiece and has light transmission;

[0054] Among them, the disassembly and assembly auxiliary mechanism 3 is used to seal the connection between the laser transmission mechanism 2 and the enclosed box 101, so that the laser transmission mechanism 2 can be quickly replaced.

[0055] Among them, the multi-layer air curtain mechanism 4 includes a flat blowing layer air guide frame 401, a flow stabilizing layer air guide frame 402, a direct flow layer air guide frame 403, a breathable plate 404, a diversion baffle 405, an upper air suction frame 406, and a lower air suction frame 407.

[0056] Among them, the flat-blowing layer air guide frame 401 is connected to the top of one side of the sealed box 101, the steady flow layer air guide frame 402 is connected to the middle of one side of the sealed box 101, the direct flow layer air guide frame 403 is connected to the bottom of one side of the sealed box 101, the upper suction frame 406 is connected to the top of the other side of the sealed box 101, the lower suction frame 407 is connected to the bottom of the other side of the sealed box 101, the permeable plate 404 is fixedly connected to the end of the flat-blowing layer air guide frame 401, the steady flow layer air guide frame 402, and the direct flow layer air guide frame 403 away from the sealed box 101, and the diversion baffle 405 is located between the upper suction frame 406 and the lower suction frame 407 and is fixedly connected to one side of the inner wall of the sealed box 101.

[0057] The gas guiding mechanism 5, in conjunction with the flue gas treatment mechanism 6, uses the upper suction frame 406 and the lower suction frame 407 to extract the argon gas and the flue gas generated during the decontamination process from the sealed box 101. After being separated by the flue gas treatment mechanism 6, the argon gas is injected into the flat blowing layer gas guiding frame 401, the stable flow layer gas guiding frame 402, and the direct flow layer gas guiding frame 403 respectively, so that the flat blowing layer, the stable flow layer, and the direct flow layer are distributed vertically and circulate within the sealed box 101.

[0058] In one embodiment, the laser transmission mechanism 2 further includes a glass support 201 and a sealing strip 203;

[0059] The transmission glass 202 is fixedly connected to the top of the inner wall of the glass bracket 201, one end of the sealing strip 203 is fixedly connected to the top of the inner wall of the enclosed box 101, and the outer wall of the glass bracket 201 is slidably connected to the inner wall of the sealing strip 203.

[0060] The glass bracket 201 is provided to support the transmission glass 202; the sealing strip 203 is provided to increase the sealing between the enclosed box 101 and the glass bracket 201 based on the disassembly and assembly auxiliary mechanism 3.

[0061] In one embodiment, the disassembly and assembly auxiliary mechanism 3 includes a knob 301, a first gear 302, a gear ring 303, four second gears 304, four clamping plates 305, and an inner support plate 306.

[0062] The inner support plate 306 is fixedly connected to the bottom of the inner wall of the enclosed box 101. The end of the sealing strip 203 away from the enclosed box 101 is fixedly connected to the bottom of the inner wall of the inner support plate 306. The knob 301 is rotatably connected to one side of the upper surface of the enclosed box 101. The first gear 302, the gear ring 303, and the four second gears 304 are all rotatably connected to the bottom of the inner wall of the inner support plate 306. One end of the knob 301 passes through the enclosed box 101 and is fixedly connected to the first gear 302. At one end of 2, the outer wall of the toothed ring 303 meshes with the outer wall of the first gear 302, the outer walls of the four second gears 304 mesh with the inner wall of the toothed ring 303, and the four clamping plates 305 are slidably connected to the inner wall of the inner support plate 306. One side of the four clamping plates 305 meshes with the outer walls of the four second gears 304 respectively. The clamping plates 305 are used to press the sealing strip 203 into the glass bracket 201 to seal and limit the glass bracket 201.

[0063] The inner sidewall of the inner support plate 306 has four guide grooves 83 at the bottom. The inner sidewalls of the four guide grooves 83 are slidably connected to four guide bars 84, and the four guide bars 84 are respectively fixedly connected to the bottom of the four clamping plates 305.

[0064] Rotating the knob 301 drives the first gear 302 to rotate. The rotating first gear 302 drives the gear ring 303 to rotate using its teeth. The rotating gear ring 303 drives the four second gears 304 to rotate synchronously using its teeth. The four synchronously rotating second gears 304 drive the four clamping plates 305 to slide out from the glass bracket 201, thereby releasing the limiting effect on the glass bracket 201. At the same time, the sliding clamping plates 305 drive the guide bar 84 to move. The moving guide bar 84 slides in the guide groove 83 to guide the clamping plates 305 that slide.

[0065] In one embodiment, the flue gas treatment mechanism 6 includes a flue gas treatment box 601, a push-pull inner support 602, four mounting brackets 603, two locking mechanisms 604, a geared motor 605, two take-up and unload rollers 606, a take-up bag 607, and a plurality of glass fiber filter membranes 608.

[0066] Among them, the flue gas treatment box 601 is installed on one side of the enclosed box 101, the push-pull inner bracket 602 is slidably connected to the inner wall of the flue gas treatment box 601, four mounting brackets 603 are symmetrically fixedly connected to the inner wall of the push-pull inner bracket 602 in pairs, two locking mechanisms 604 and take-up and unload rollers 606 are respectively located between the four mounting brackets 603 in pairs, the reduction motor 605 is installed on one side of one mounting bracket 603, the take-up bag 607 is wound between the two take-up and unload rollers 606, and several glass fiber filter membranes 608 are fixedly connected to the inner wall of the take-up bag 607.

[0067] Both locking mechanisms 604 consist of a connecting shaft 641, a connecting plate 642, a spring 643, and two locking plates 644;

[0068] The outer side wall of the connecting shaft 641 is slidably connected to the inner side wall of the mounting bracket 603. The connecting plate 642 is fixedly connected to one end of the connecting shaft 641. One end of the spring 643 is fixedly connected to one side of the connecting plate 642, and the other end of the spring 643 is fixedly connected to one side of the mounting bracket 603. A locking plate 644 is rotatably connected to the other end of the connecting shaft 641, and the other end of the locking plate 644 is rotatably connected to one side of another processing table 103. The output shaft of the reduction motor 605 is fixedly connected to one end of the locking plate 644 of a locking mechanism 604.

[0069] The output shaft of the geared motor 605 drives a take-up roller 606 to rotate via the locking plate 644. The rotating take-up roller 606 drives the take-up bag 607 and glass fiber filter membrane 608 to be wound up, while the other take-up roller 606 rotates synchronously to release unused take-up bags 607 and glass fiber filter membranes 608.

[0070] The moving connecting plate 642 drives the connecting shaft 641 and the spring 643 to move. The moving connecting shaft 641 drives a locking plate 644 to separate from the take-up and release rollers 606, thereby releasing the limit on the take-up and release rollers 606 so that the two take-up and release rollers 606 can be removed from the four mounting brackets 603 respectively.

[0071] In one embodiment, the air guiding mechanism 5 includes a first fan 501, a second fan 502, a first air guiding pipe 503, a second air guiding pipe 504, a bundled tube box 505, a steady flow air supply pipe 506, and a flat blowing air supply pipe 507.

[0072] The first fan 501 is installed on the top side of the flue gas treatment box 601, and the second fan 502 is installed on the bottom side of the flue gas treatment box 601. The first fan 501 and the second fan 502 are respectively corresponding to the upper suction frame 406 and the lower suction frame 407. The bundled tube box 505 is fixedly connected to the bottom of the enclosed box 101. One end of the first air guide pipe 503 is connected to one side of the first fan 501, and one end of the second air guide pipe 504 is connected to one end of the second fan 502. Both tube 503 and the second air guide tube 504 penetrate the inner wall of the bundle tube box 505. The other end of the second air guide tube 504 is connected to one side of the DC layer air guide frame 403. One end of the steady flow air supply tube 506 is connected to one side of the steady flow layer air guide frame 402, and the other end of the steady flow air supply tube 506 is connected to the outer wall of the first air guide tube 503. One end of the flat blowing air supply tube 507 is connected to one side of the flat blowing layer air guide frame 401, and the other end of the flat blowing air supply tube 507 is connected to one end of the first air guide tube 503.

[0073] Argon gas is extracted from the flue gas treatment box 601 by the first fan 501 and the second fan 502 and injected into the first gas guide pipe 503 and the second gas guide pipe 504 respectively. Then, the extracted argon gas is injected into the flat blowing layer gas guide frame 401, the steady flow layer gas guide frame 402 and the direct flow layer gas guide frame 403 respectively through the first gas guide pipe 503, the second gas guide pipe 504, the steady flow gas supply pipe 506 and the flat blowing gas supply pipe 507, so that the argon gas can be blown into the interior of the sealed box 101 by the flat blowing layer gas guide frame 401, the steady flow layer gas guide frame 402 and the direct flow layer gas guide frame 403.

[0074] In one embodiment, a pressing mechanism 7 is installed in the middle of the inner wall of the flue gas treatment mechanism 6. The pressing mechanism 7 includes an electric push rod 701, a pressing frame 702, and two bellows 703.

[0075] The electric push rod 701 is installed on one side of the inner wall of the flue gas treatment box 601. The pressing frame 702 is fixedly connected to the piston rod of the electric push rod 701. One side of the pressing frame 702 is correspondingly arranged with two glass fiber filter membranes 608, the upper suction frame 406 and the lower suction frame 407. One end of each of the two corrugated pipes 703 is connected to one side of the pressing frame 702, and the other end of each of the two corrugated pipes 703 is connected to one side of the inner wall of the flue gas treatment box 601. The two corrugated pipes 703 are respectively correspondingly arranged with the first fan 501 and the second fan 502.

[0076] The piston rod of the electric push rod 701 drives the pressing frame 702 to squeeze the winding bag 607 and the glass fiber filter membrane 608, so that the winding bag 607 and the glass fiber filter membrane 608 are fully attached to the upper suction frame 406 and the lower suction frame 407 respectively. At the same time, the moving pressing frame 702 drives the corrugated tube 703 to extend.

[0077] In one embodiment, a sealing mounting plate 81 is installed on the side of the enclosed box 101 away from the observation window 102, and a handle 82 is fixedly connected to one side of the push-pull inner bracket 602. The sealing mounting plate 81 is open, semi-open, or sealed.

[0078] The observation window 102 allows for observation of the laser cleaning effect on the workpiece outside the enclosed box 101; the handle 82 allows for pulling the push-pull inner support 602 out of the flue gas treatment box 601.

[0079] In operation, the present invention first selects the sealing form of the sealing mounting plate 81 according to actual needs. When the built-in robotic arm is used to grip the workpiece for laser cleaning, the sealing mounting plate 81 can be set to a fully enclosed type, so that a sealed space is formed inside the sealed box 101. When the external robotic arm is used to grip the workpiece and extend into the sealed box 101 for laser cleaning, the sealing mounting plate 81 can be set to an open or semi-open type. Then, the sealing mounting plate 81 is connected to the sealed container on which the robotic arm is installed, so that the sealed box 101 and the container on which the robotic arm is installed form a sealed space, thereby effectively preventing the smoke and dust and aerogel generated during the cleaning process from overflowing from the sealed box 101.

[0080] When laser cleaning of a workpiece is required, argon gas is used to replace the air in the sealed chamber 101. Then, the laser cleaning head is externally installed above the transmission glass 202 so that the transmission glass 202 can transmit the laser beam generated by the laser cleaning head to the surface of the workpiece inside the sealed chamber 101 for laser cleaning.

[0081] When it is necessary to collect the fumes and aerogel generated during the laser cleaning process, the first fan 501 and the second fan 502 extract the argon gas from the bellows 703 and inject it into the first gas guide pipe 503 and the second gas guide pipe 504 respectively. Then, the extracted argon gas is injected into the flat-blown layer gas guide frame 401, the stable flow layer gas guide frame 402 and the direct flow layer gas guide frame respectively through the first gas guide pipe 503, the second gas guide pipe 504, the stable flow gas supply pipe 506 and the flat-blown gas supply pipe 507. Inside 403, argon gas is blown into the sealed chamber 101 using the flat-blown layer guide frame 401, the stable flow layer guide frame 402, and the direct flow layer guide frame 403. Then, under negative pressure, the argon gas, fumes, and aerogel inside the sealed chamber 101 are drawn in by the upper suction frame 406 and the lower suction frame 407 through the bellows 703. This creates a vertically distributed and circulating flat-blown layer, stable flow layer, and direct flow layer inside the sealed chamber 101, allowing the direct flow layer to be used for laser cleaning of the workpiece. The smoke and aerogel generated during the process are directly blown down to the lower suction frame 407 for collection. A flow stabilizing layer is used to guide the smoke and aerogel remaining after passing through the direct current layer, preventing them from entering the flat-blown layer. The flat-blown layer provides air curtain protection for the transmission glass 202, preventing contact between the smoke and aerogel and ensuring the transmittance of the transmission glass 202. Then, the corrugated pipe 703 connects to the upper suction frame 406 and the lower suction frame... The glass fiber filter membrane 608 between the gas racks 407 adsorbs and intercepts the dust and aerogel carried in the flue gas to filter the argon gas and ensure that the argon gas can be recycled. The flow diversion baffle 405 is used to divert the flow in the stabilizing layer. The argon gas in the upper layer of the stabilizing layer mixes with the argon gas in the flat blowing layer and is absorbed by the upper suction rack 406. The argon gas in the lower layer of the stabilizing layer, which contains a small amount of dust and aerogel, mixes with the direct blowing layer and is absorbed by the lower suction rack 407.

[0082] When it is necessary to replace the glass fiber filter membrane 608 located on one side of the upper suction frame 406 and lower suction frame 407, the piston rod of the electric push rod 701 drives the pressing frame 702 to move. The moving pressing frame 702 separates from the winding bag 607 and the glass fiber filter membrane 608, and drives the corrugated tube 703 to retract. Then, through the output shaft of the reduction motor 605, the locking plate 644 drives one take-up roller 606 to rotate. The rotating take-up roller 606 drives the winding bag 607 and the glass fiber filter membrane 608 to rewind, while the other... The take-up and untake-down rollers 606 rotate synchronously to release unused take-up bags 607 and glass fiber filter membranes 608. When a new glass fiber filter membrane 608 moves to one side of the upper suction frame 406, the piston rod of the electric push rod 701 drives the pressing frame 702 to squeeze the take-up bag 607 and glass fiber filter membrane 608, so that the take-up bag 607 and glass fiber filter membrane 608 are fully attached to the upper suction frame 406 and the lower suction frame 407 respectively. At the same time, the moving pressing frame 702 drives the corrugated tube 703 to extend.

[0083] When it is necessary to replace the take-up roller 606, take-up bag 607 and glass fiber filter membrane 608 as a whole, under the condition of wearing the necessary protective equipment, the push-pull inner bracket 602 is pulled out of the flue gas treatment box 601 by moving the handle 82. Then, the connecting shaft 641 and spring 643 are moved by moving the connecting plate 642. The moving connecting shaft 641 drives a locking plate 644 to separate from the take-up roller 606, so as to release the limit on the take-up roller 606, so that the two take-up rollers 606 can be removed from the four mounting brackets 603 for replacement.

[0084] When the transmissive glass 202 needs to be replaced after prolonged use, rotating the knob 301 drives the first gear 302 to rotate. The rotating first gear 302 drives the gear ring 303 to rotate, and the rotating gear ring 303 drives the four second gears 304 to rotate synchronously. The four synchronously rotating second gears 304 drive the four locking plates 305 to slide out of the glass holder 201, thereby releasing the limiting position on the glass holder 201. At the same time, the sliding locking plates 305 drive the guide bar 84 to move. The moving guide bar 84 slides in the guide groove 83 to guide the sliding locking plates 305. After the limiting position on the glass holder 201 is released, the glass holder 201 can be moved to remove the transmissive glass 202 from the enclosed box 101 for replacement.

[0085] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A flue gas treatment device based on laser decontamination, comprising a laser decontamination box assembly (1) and a laser transmission mechanism (2) having a transmission glass (202), characterized in that, The laser decontamination box assembly (1) includes an argon-filled enclosed box (101), an observation window (102), and a processing table (103). The observation window (102) is installed on one side of the inner wall of the enclosed box (101), the processing table (103) is installed in the middle of the inner wall of the enclosed box (101), the laser transmission mechanism (2) is installed on the top of the inner wall of the enclosed box (101), a disassembly and assembly auxiliary mechanism (3) is installed between the top of the inner wall of the enclosed box (101) and the laser transmission mechanism (2), a multi-layer air curtain mechanism (4) is installed on both sides of the inner wall of the enclosed box (101), a flue gas treatment mechanism (6) is installed on one side of the enclosed box (101), and a gas guiding mechanism (5) is installed between the flue gas treatment mechanism (6) and the enclosed box (101). The laser transmission mechanism (2) is used to separate the laser cleaning head from the workpiece and has light transmittance. The disassembly and assembly auxiliary mechanism (3) is used to seal the connection between the laser transmission mechanism (2) and the enclosed box (101), so that the laser transmission mechanism (2) can be quickly replaced. The multi-layer air curtain mechanism (4) includes a flat blowing layer air guide frame (401), a steady flow layer air guide frame (402), a direct flow layer air guide frame (403), an upper suction frame (406), and a lower suction frame (407). The flat-blowing air guide frame (401) is connected to the top of one side of the closed box (101), the flow-stabilizing air guide frame (402) is connected to the middle of one side of the closed box (101), the direct-flow air guide frame (403) is connected to the bottom of one side of the closed box (101), the upper suction frame (406) is connected to the top of the other side of the closed box (101), and the lower suction frame (407) is connected to the bottom of the other side of the closed box (101). The gas guiding mechanism (5) works with the flue gas treatment mechanism (6) to extract the argon gas and the flue gas generated during the decontamination process from the sealed box (101) using the upper suction frame (406) and the lower suction frame (407). After being separated by the flue gas treatment mechanism (6), the argon gas is injected into the flat blowing layer gas guiding frame (401), the stable flow layer gas guiding frame (402), and the direct flow layer gas guiding frame (403) respectively, so that the flat blowing layer, the stable flow layer and the direct flow layer are distributed vertically and circulated in the sealed box (101).

2. The flue gas treatment equipment based on laser decontamination according to claim 1, characterized in that: The laser transmission mechanism (2) also includes a glass support (201) and a sealing strip (203). The transmissive glass (202) is fixedly connected to the top of the inner wall of the glass bracket (201), one end of the sealing strip (203) is fixedly connected to the top of the inner wall of the enclosed box (101), and the outer wall of the glass bracket (201) is slidably connected to the inner wall of the sealing strip (203).

3. The flue gas treatment equipment based on laser decontamination according to claim 2, characterized in that: The disassembly and assembly auxiliary mechanism (3) includes a knob (301), a first gear (302), a gear ring (303), four second gears (304), four clamping plates (305), and an inner support plate (306). The inner support plate (306) is fixedly connected to the bottom of the inner wall of the enclosed box (101). One end of the sealing strip (203) away from the enclosed box (101) is fixedly connected to the bottom of the inner wall of the inner support plate (306). The knob (301) is rotatably connected to one side of the upper surface of the enclosed box (101). The first gear (302), the gear ring (303), and the four second gears (304) are all rotatably connected to the bottom of the inner wall of the inner support plate (306). One end of the knob (301) penetrates the enclosed box (101) and is fixedly connected to the first gear (302). At one end of 302), the outer wall of the gear ring (303) meshes with the outer wall of the first gear (302), the outer walls of the four second gears (304) mesh with the inner wall of the gear ring (303), the four clamping plates (305) are slidably connected to the inner wall of the inner support plate (306), and one side of the four clamping plates (305) meshes with the outer walls of the four second gears (304) respectively. The clamping plates (305) are used to press the sealing strip (203) into the glass bracket (201) to seal and limit the glass bracket (201).

4. The flue gas treatment equipment based on laser decontamination according to claim 1, characterized in that: The multi-layer air curtain mechanism (4) also includes a permeable plate (404) and a diversion baffle (405). The permeable plate (404) is fixedly connected to the end of the flat blowing layer air guide frame (401), the steady flow layer air guide frame (402), and the direct flow layer air guide frame (403) away from the closed box (101), and the diversion baffle (405) is located between the upper air intake frame (406) and the lower air intake frame (407) and is fixedly connected to one side of the inner wall of the closed box (101).

5. The flue gas treatment equipment based on laser decontamination according to claim 1, characterized in that: The flue gas treatment mechanism (6) includes a flue gas treatment box (601), a push-pull inner support (602), four mounting brackets (603), two locking mechanisms (604), a geared motor (605), two take-up and unload rollers (606), a take-up bag (607), and several glass fiber filter membranes (608). The flue gas treatment box (601) is installed on one side of the enclosed box (101), the push-pull inner bracket (602) is slidably connected to the inner wall of the flue gas treatment box (601), the four mounting brackets (603) are symmetrically fixedly connected to the inner wall of the push-pull inner bracket (602) in pairs, the two locking mechanisms (604) and the take-up and release rollers (606) are respectively arranged between the four mounting brackets (603) in pairs, the reduction motor (605) is installed on one side of one of the mounting brackets (603), the take-up bag (607) is wound between the two take-up and release rollers (606), and a number of glass fiber filter membranes (608) are fixedly connected to the inner wall of the take-up bag (607).

6. The flue gas treatment equipment based on laser decontamination according to claim 5, characterized in that: Both of the aforementioned engaging mechanisms (604) consist of a connecting shaft (641), a connecting plate (642), a spring (643), and two engaging plates (644); The outer wall of the connecting shaft (641) is slidably connected to the inner wall of the mounting bracket (603). The connecting plate (642) is fixedly connected to one end of the connecting shaft (641). One end of the spring (643) is fixedly connected to one side of the connecting plate (642), and the other end of the spring (643) is fixedly connected to one side of the mounting bracket (603). One of the locking plates (644) is rotatably connected to the other end of the connecting shaft (641), and the other end of the locking plate (644) is rotatably connected to one side of another processing table (103). The output shaft of the reduction motor (605) is fixedly connected to one end of the locking plate (644) of a locking mechanism (604).

7. The flue gas treatment equipment based on laser decontamination according to claim 5, characterized in that: The air guiding mechanism (5) includes a first fan (501), a second fan (502), a first air guiding pipe (503), a second air guiding pipe (504), a bundled tube box (505), a steady flow air supply pipe (506), and a flat blowing air supply pipe (507); The first fan (501) is installed on the top side of the flue gas treatment box (601), and the second fan (502) is installed on the bottom side of the flue gas treatment box (601). The first fan (501) and the second fan (502) are respectively corresponding to the upper suction frame (406) and the lower suction frame (407). The bundled tube box (505) is fixedly connected to the bottom of the closed box (101). One end of the first air guide pipe (503) is connected to one side of the first fan (501), and one end of the second air guide pipe (504) is connected to one end of the second fan (502). A first air guide tube (503) and a second air guide tube (504) both penetrate the inner wall of the bundle tube box (505). The other end of the second air guide tube (504) is connected to one side of the DC layer air guide frame (403). One end of the steady flow air supply tube (506) is connected to one side of the steady flow layer air guide frame (402). The other end of the steady flow air supply tube (506) is connected to the outer wall of the first air guide tube (503). One end of the flat blowing air supply tube (507) is connected to one side of the flat blowing layer air guide frame (401). The other end of the flat blowing air supply tube (507) is connected to one end of the first air guide tube (503).

8. The flue gas treatment equipment based on laser decontamination according to claim 7, characterized in that: A pressing mechanism (7) is installed in the middle of the inner wall of the flue gas treatment mechanism (6). The pressing mechanism (7) includes an electric push rod (701), a pressing frame (702), and two bellows (703). The electric push rod (701) is installed on one side of the inner wall of the flue gas treatment box (601). The pressing frame (702) is fixedly connected to the piston rod of the electric push rod (701). One side of the pressing frame (702) is correspondingly arranged with two glass fiber filter membranes (608), the upper suction frame (406) and the lower suction frame (407). One end of each of the two corrugated pipes (703) is connected to one side of the pressing frame (702), and the other end of each of the two corrugated pipes (703) is connected to one side of the inner wall of the flue gas treatment box (601). The two corrugated pipes (703) are respectively corresponding to the first fan (501) and the second fan (502).

9. The flue gas treatment equipment based on laser decontamination according to claim 5, characterized in that: A sealing mounting plate (81) is installed on the side of the enclosed box (101) away from the observation window (102), and a handle (82) is fixedly connected to one side of the push-pull inner bracket (602). The sealing mounting plate (81) can be open, semi-open or sealed.

10. The flue gas treatment equipment based on laser decontamination according to claim 3, characterized in that: The inner sidewall of the inner support plate (306) has four guide grooves (83) at the bottom. The inner sidewalls of the four guide grooves (83) are slidably connected to four guide strips (84). The four guide strips (84) are respectively fixedly connected to the bottom of the four card plates (305).

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