Furniture production waste gas purification treatment equipment

Abstract

The invention discloses furniture production waste gas purification treatment equipment, and belongs to the technical field of furniture production waste gas purification treatment.The furniture production waste gas purification treatment equipment comprises a support and a purification tank fixed to the support, and a gas inlet assembly is installed on the purification tank in the axis direction; a filtering assembly and a graphene photocatalysis annular plate are installed in the purification tank, the air inlet assembly, the filtering assembly and the graphene photocatalysis annular plate are coaxial, the filtering assembly is located between the air inlet assembly and the graphene photocatalysis annular plate, and a plurality of strip-shaped ultraviolet LED light sources are fixed to the inner wall of the purification tank in the direction of the central axis at equal angles; the plurality of strip-shaped ultraviolet LED light sources are annularly distributed outside the graphene photocatalytic annular plate; an air outlet channel is arranged above the purification tank in a penetrating manner; an air outlet pipe is arranged on the air outlet channel in a penetrating manner; according to the purification treatment equipment, waste gas can be kept in full contact with the activated carbon and the graphene photocatalytic annular plate, and the waste gas purification treatment effect is kept.

Description

Technical Field

[0001] This invention relates to the field of furniture manufacturing waste gas purification and treatment technology, specifically to a furniture manufacturing waste gas purification and treatment device. Background Technology

[0002] Traditional purification processes for furniture manufacturing waste gas typically employ a fixed three-stage process: pretreatment, adsorption, and photocatalytic oxidation. The pretreated waste gas is passed into a fixed adsorption bed filled with granular activated carbon, where the physical adsorption of activated carbon traps volatile organic pollutants such as formaldehyde and benzene compounds. Finally, the adsorbed waste gas flows through a fixedly arranged graphene photocatalytic plate, where ultraviolet light excites the hydroxyl radicals generated by the catalyst to oxidize and decompose the small amount of unadsorbed VOCs. The treated gas is then discharged in compliance with emission standards via an induced draft fan.

[0003] For example, patent CN222266634U discloses an activated carbon purification device for waste gas treatment, including: a purification box, with an air inlet port on one side and an air outlet port on the other side; hinges on both sides of one end of the purification box, with sealing doors fitted on the hinges; multiple partitions inside the purification box, dividing the purification box into multiple purification chambers; each purification chamber is equipped with a set of purification mechanisms; waste gas enters through the air inlet port and exits through the air outlet port to achieve its purpose; the serpentine path through multiple purification chambers can increase the contact time with the honeycomb activated carbon blocks and reduce the unstable purification effect caused by concentrated path; the honeycomb activated carbon blocks have good disassembly and assembly efficiency and are relatively convenient to operate, so as to achieve a better replacement frequency to ensure purification stability.

[0004] For example, patent CN216726533U discloses an activated carbon adsorption device for purifying organic waste gas, including a base, a support plate fixedly installed on the bottom and right side of the base, and rollers installed on the bottom of the support plate; the device filters impurities in the waste gas through the cooperation of a flow-slowing cylinder, an absorption plate, and an absorption opening, preventing impurities from clogging the activated carbon and affecting its adsorption capacity. The flow-slowing cylinder is easy to disassemble, and impurities separated from the absorption opening automatically fall into the waste collection box, making cleaning convenient and easy to use. The device absorbs and purifies organic waste gas through the cooperation of a filter pipe, a partition plate, and an adsorption tank. Increasing the adsorption area of ​​the activated carbon improves the adsorption and purification effect. Impurities in the waste gas are filtered before contacting the activated carbon, preventing impurities from clogging the activated carbon and thus reducing the frequency of activated carbon replacement.

[0005] For example, patent CN219209460U discloses an activated carbon adsorption tank, relating to the field of activated carbon adsorption tank technology. This activated carbon adsorption tank includes an activated carbon adsorption tank and a lifting mechanism. Support legs are provided on the activated carbon adsorption tank, and a gas-guiding frustum is fixedly installed inside the tank. A top cover is provided on top of the activated carbon adsorption tank. Through the coordinated use of the activated carbon adsorption tank, support legs, gas-guiding frustum, top cover, hydraulic rod, lifting block, right-angle plate, mounting mesh, activated carbon granule body, connecting column, and moving plate, waste gas can be adsorbed and purified. Compared with traditional activated carbon adsorption tanks, this activated carbon adsorption tank facilitates the replacement and disassembly of the mounting mesh and activated carbon granule body, thus facilitating maintenance and ensuring the quality of the activated carbon. On the one hand, the adsorption tank has a good adsorption and purification effect, and on the other hand, it facilitates the recovery of activated carbon and reduces resource waste. However, in actual operation, traditional furniture production exhaust gas purification equipment is limited by the fixed structure design. The activated carbon and photocatalytic plate are statically distributed. With long-term use, activated carbon is prone to particle compaction and caking. Exhaust gas can only penetrate the surface pores of the activated carbon layer. The utilization rate of deep pores is low, the adsorption saturation cycle is short, and when the exhaust gas flows through the surface of the photocatalytic plate, laminar flow dead zones are easily formed. The contact time and contact area are insufficient, and a large number of organic pollutants that are not adsorbed or catalytically decomposed directly penetrate the purification unit, ultimately resulting in insufficient exhaust gas treatment.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on existing furniture production waste gas purification and treatment equipment. Summary of the Invention

[0007] The purpose of this invention is to provide a furniture manufacturing waste gas purification and treatment device to solve the problems mentioned in the background art, such as low gas-solid two-phase contact mass transfer efficiency, attenuation of adsorption performance of adsorption materials, and incomplete degradation of pollutants.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a furniture manufacturing waste gas purification and treatment device, comprising a support frame and a purification tank fixed on the support frame. An air intake component is installed on the purification tank along its axial direction. A filter component and a graphene photocatalytic ring plate are installed inside the purification tank. The air intake component, filter component, and graphene photocatalytic ring plate are coaxial, and the filter component is located between the air intake component and the graphene photocatalytic ring plate. Multiple strip-shaped ultraviolet LED light sources are fixed at equal angles along the central axis of the inner wall of the purification tank, and these multiple strip-shaped ultraviolet LED light sources are distributed in a ring outside the graphene photocatalytic ring plate. An air outlet channel is installed through the top of the purification tank, and an air outlet pipe is installed through the air outlet channel. The purification tank is equipped with a rotating mechanism that drives the graphene photocatalytic ring plate to reciprocate and extend the reaction time. The graphene photocatalytic ring plate is equipped with a catalytic reaction mechanism for dynamically catalytically decomposing the waste gas.

[0009] Preferably, the air intake assembly includes an upper cylinder that is fixedly fixed to the top of the purification tank, a lower cylinder that is fixedly installed on the inner bottom surface of the purification tank, and an air intake screen that is slidably connected between the upper cylinder and the lower cylinder along the axial direction. The air intake screen is internally connected to the filter assembly.

[0010] Preferably, the filter assembly includes hollow rings fixedly installed on the top and bottom surfaces of the purification tank, and a filter screen cylinder is fixedly connected between the upper and lower sets of hollow rings; the space between the filter screen cylinder and the air inlet screen cylinder is filled with modified activated carbon and molecular sieves; two sets of limiting discs are fixedly installed on the outside of the air inlet screen cylinder, and the two sets of limiting discs are respectively fitted and slidably disposed on the inner sides of the upper and lower sets of hollow rings, and the upper and lower limiting discs limit and protect the modified activated carbon and molecular sieves above and below.

[0011] Preferably, the rotating mechanism includes a slide seat slidably mounted on the bottom of the purification tank, the slide seat being fixedly mounted on the bottom of the graphene photocatalytic ring plate, and a drive ring being fixedly mounted on the bottom of the slide seat, the drive ring being fitted against the bottom of the purification tank; a motor is fixedly mounted on the bracket, the output end of the motor is connected to a power shaft, and the power shaft is fixedly connected to the drive ring through a fixing bracket.

[0012] Preferably, the catalytic reaction mechanism includes a positioning strip that is equidistantly fitted inside the graphene photocatalytic ring plate along the central axis. An embedded groove is formed through the interior of the graphene photocatalytic ring plate and the positioning strip, and a ring-shaped ultraviolet LED bidirectional light source is slidably installed in the embedded groove.

[0013] Preferably, a transmission column is vertically fixed on the annular ultraviolet LED bidirectional light source, and a groove is longitudinally opened on the positioning strip, in which the transmission column is slidably connected; a V-shaped slide is fixedly installed on the inner wall of the purification tank, in which the transmission column is slidably connected.

[0014] Preferably, a threaded rod is fixedly connected to the power shaft along the axial direction, an internal threaded post is threadedly installed above the threaded rod, and a fixed disc is fixedly installed on the upper surface of the internal threaded post. The fixed disc is fixedly installed inside the air inlet screen cylinder.

[0015] Preferably, the lower cylinder has a guide groove inside, and a guide strip is slidably installed in the guide groove. The guide strip is fixedly installed on the lower surface of the fixed disc.

[0016] Preferably, the limiting disk is provided with a dispersion mechanism for dispersing modified activated carbon and molecular sieve in the filter cylinder by shaking along the radial direction.

[0017] Preferably, the dispersing mechanism includes an elastic dispersing frame fixed at equal angles along the central axis to the upper and lower end faces inside the purification tank. The elastic dispersing frame is longitudinally slidably connected to the limiting plate, and the portion of the elastic dispersing frame located in the filter screen cylinder is inclined. Multiple uprights are fixed at equal angles along the central axis on the surface of the limiting plate, and the end faces of the uprights are in contact with the inclined surfaces of the elastic dispersing frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The furniture production waste gas purification and treatment equipment utilizes a combination of filter components and graphene photocatalytic ring plates to treat production waste gas, so that the waste gas is catalytically decomposed after adsorption, reducing the content of organic pollutants in the production waste gas. During the waste gas treatment process, the activated carbon and molecular sieve can be shaken and dispersed, and the graphene photocatalytic ring plates are driven to rotate back and forth simultaneously, so that the waste gas can fully contact the activated carbon, molecular sieve, and graphene photocatalytic ring plates, thereby improving the waste gas treatment effect.

[0019] The purification tank is equipped with a rotating mechanism that drives the graphene photocatalytic ring plate to reciprocate and extend the reaction time. The motor controls the drive ring, slide, and graphene photocatalytic ring plate to reciprocate within a certain angle. The centrifugal force generated by the rotation will cause the exhaust gas to move in a spiral motion along the channels of the graphene photocatalytic ring plate, extending the residence time of the exhaust gas in the channels. During the rotation, the graphene photocatalytic ring plate and the airflow in the gap will generate relative motion, breaking the steady flow field between the adsorption layer and the catalyst layer, so that the small molecule VOCs that are not adsorbed by activated carbon can fully collide with the active sites of the catalyst, and the reaction probability of hydroxyl radicals and VOCs will be increased, thereby improving the exhaust gas purification effect.

[0020] The graphene photocatalytic ring plate is equipped with a catalytic reaction mechanism for dynamic catalytic decomposition of waste gas. During the reciprocating rotation of the graphene photocatalytic ring plate, the longitudinal reciprocating movement of the annular ultraviolet LED bidirectional light source embedded in the graphene photocatalytic ring plate can be controlled, allowing ultraviolet light to cover all the inner walls of the pores of the catalytic plate, thereby improving the catalyst activation rate. At the same time, the reciprocating rotation of the graphene photocatalytic ring plate can also make the strip ultraviolet LED light source irradiate evenly, further improving the catalytic decomposition effect of waste gas.

[0021] After being catalytically decomposed, the exhaust gas produces ozone and hydroxyl radicals, which will penetrate back into the pores of the activated carbon in front through molecular diffusion. This will oxidize and decompose the organic pollutants already adsorbed on the surface of the activated carbon, extend the service life of the activated carbon for adsorbing exhaust gas, and reduce the cost of replacing the activated carbon.

[0022] The limiting disk is equipped with a dispersion mechanism that disperses the modified activated carbon and molecular sieve in the filter screen cylinder along the radial direction. During the reciprocating rotation of the graphene photocatalytic ring plate, it can control the longitudinal reciprocating motion of the air intake screen cylinder sleeved on the upper and lower cylinders. This can drive the limiting disk to reciprocate and shake to disperse the activated carbon, avoiding the situation where the activated carbon is densely packed and thus has insufficient contact with the exhaust gas. At the same time, it can accelerate the gas flow and improve the gas adsorption effect.

[0023] Furthermore, during the longitudinal reciprocating motion of the limiting disc, the upright rod can sequentially contact and squeeze the elastic dispersion frame above and below. During the process of being pressed and the pressure disappearing, the inclined surface of the elastic dispersion frame is squeezed and shaken, causing the activated carbon to move and disperse along the radial direction. Combined with the limiting disc driving the activated carbon to shake and disperse along the axial direction, the activated carbon is evenly distributed in the filter screen cylinder and can move and disperse up and down and inside and outside, so as to fully adsorb and treat the furniture production waste gas. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the purification tank structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the filter screen cylinder structure of the present invention.

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the air outlet channel of the present invention.

[0027] Figure 4 This is a schematic diagram of the limiting disk structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the air inlet screen cylinder of the present invention.

[0029] Figure 6 This is a schematic diagram of the elastic dispersion frame structure of the present invention.

[0030] Figure 7 This is a schematic diagram of the graphene photocatalytic ring plate structure of the present invention.

[0031] Figure 8 This is a schematic diagram of the structure of the strip-shaped ultraviolet LED light source of the present invention.

[0032] Figure 9 This is a schematic diagram of the cross-sectional structure of the purification tank of the present invention.

[0033] Figure 10 This is a schematic diagram of the driving ring structure of the present invention.

[0034] Figure 11 This is a schematic diagram of the threaded rod structure of the present invention.

[0035] Figure 12 This is a schematic diagram of the V-shaped slide structure of the present invention.

[0036] Figure 13 This is a schematic diagram of the annular ultraviolet LED bidirectional light source structure of the present invention.

[0037] Figure 14 This is a schematic diagram of the transmission column structure of the present invention.

[0038] In the diagram: 1. Support; 2. Purification tank; 3. Air intake assembly; 31. Upper cylinder; 32. Lower cylinder; 33. Air intake screen; 34. Limiting plate; 35. Guide groove; 36. Guide strip; 4. Filter assembly; 41. Hollow ring; 42. Filter screen; 5. Graphene photocatalytic ring plate; 51. Positioning strip; 52. Embedded groove; 53. Ring-shaped ultraviolet LED bidirectional light source; 54. Transmission column; 55. Slide groove; 56. V-shaped slide; 6. Strip-shaped ultraviolet LED light source; 7. Air outlet channel; 8. Air outlet pipe; 9. Slide seat; 10. Drive ring; 11. Motor; 12. Power shaft; 13. Fixing frame; 14. Threaded rod; 15. Internally threaded column; 16. Fixing disc; 17. Elastic dispersion frame; 18. Upright pole. Detailed Implementation

[0039] The technical solutions of 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.

[0040] Example 1: Please refer to Figure 1 - Figure 4 The present invention provides the following technical solution: a furniture manufacturing waste gas purification and treatment device, comprising a support 1 and a purification tank 2 fixed on the support 1. An air intake component 3 is installed on the purification tank 2 along the axial direction. A filter component 4 and a graphene photocatalytic ring plate 5 are installed inside the purification tank 2. The air intake component 3, the filter component 4, and the graphene photocatalytic ring plate 5 are coaxial, and the filter component 4 is located between the air intake component 3 and the graphene photocatalytic ring plate 5. Multiple strip-shaped ultraviolet LED light sources 6 are fixed at equal angles along the central axis of the inner wall of the purification tank 2. The multiple strip-shaped ultraviolet LED light sources 6 are distributed in a ring outside the graphene photocatalytic ring plate 5. An air outlet channel 7 is installed through the top of the purification tank 2, and an air outlet pipe 8 is installed through the air outlet channel 7. A rotating mechanism is provided in the purification tank 2 to drive the graphene photocatalytic ring plate 5 to reciprocate and extend the reaction time. A catalytic reaction mechanism for dynamically catalytically decomposing waste gas is provided in the graphene photocatalytic ring plate 5.

[0041] Please see Figure 4 , Figure 5 , Figure 10 and Figure 11The air intake assembly 3 includes an upper cylinder 31 fixedly connected to the top of the purification tank 2, a lower cylinder 32 fixedly installed on the inner bottom surface of the purification tank 2, and an air intake screen 33 slidably connected between the upper cylinder 31 and the lower cylinder 32 along the axial direction. The air intake screen 33 is internally connected to the filter assembly 4. The filter assembly 4 includes hollow rings 41 fixedly installed on the top and bottom surfaces of the purification tank 2, and a filter screen 42 fixedly connected between the upper and lower sets of hollow rings 41. The space between the filter screen 42 and the air intake screen 33 is filled with modified activated carbon and molecular sieves. Two sets of limiting discs 34 are fixedly installed on the outside of the air intake screen 33. The two sets of limiting discs 34 are respectively fitted and slidably disposed on the inner side of the upper and lower sets of hollow rings 41, and the upper and lower limiting discs 34 limit and protect the modified activated carbon and molecular sieves above and below.

[0042] Please see Figure 7 - Figure 10 The rotating mechanism includes a slide seat 9 that is slidably installed at the bottom of the purification tank 2. The slide seat 9 is fixedly installed at the bottom of the graphene photocatalytic ring plate 5, and a drive ring 10 is fixedly installed at the bottom of the slide seat 9. The drive ring 10 is fitted against the bottom of the purification tank 2. A motor 11 is fixedly installed on the bracket 1. The output end of the motor 11 is connected to a power shaft 12. The power shaft 12 is fixedly connected to the drive ring 10 through a fixing frame 13.

[0043] Please see Figure 12 - Figure 14 The catalytic reaction mechanism includes a positioning strip 51 that is equidistantly fitted inside the graphene photocatalytic ring plate 5 along the central axis. An embedded groove 52 is formed through the interior of the graphene photocatalytic ring plate 5 and the positioning strip 51, and a ring-shaped ultraviolet LED bidirectional light source 53 is slidably installed in the embedded groove 52. A drive column 54 is vertically fixed to the ring-shaped ultraviolet LED bidirectional light source 53, and a longitudinal groove 55 is formed on the positioning strip 51, in which the drive column 54 is slidably connected. A V-shaped slide rail 56 is fixedly installed on the inner wall of the purification tank 2, and the drive column 54 is slidably connected in the V-shaped slide rail 56.

[0044] The pre-treated exhaust gas (coarse pre-treatment using a filter or cyclone separator to trap larger particles like sawdust and paint dust) is passed through the upper cylinder 31 into the inlet screen cylinder 33. The exhaust gas is further filtered through the mesh structure of the inlet screen cylinder 33, separating the dust particles. The inlet screen cylinder 33, the filter screen cylinder 42, and the upper and lower limiting discs 34 form a relatively sealed space filled with modified activated carbon and molecular sieves. The modified activated carbon adsorbs polar VOCs such as formaldehyde and ethyl acetate, while the molecular sieves... It can intercept non-polar macromolecular VOCs such as benzene and toluene, avoiding competitive adsorption of different types of VOCs on the surface of activated carbon. The waste gas after adsorption treatment passes through the filter screen cylinder 42 and enters the channel of the graphene photocatalytic ring plate 5. With the help of the strip ultraviolet LED light source 6 and the ring ultraviolet LED bidirectional light source 53, the low concentration VOCs that are not completely intercepted after adsorption are oxidized and decomposed into CO2 and H2O. The decomposed gas floats into the gas outlet channel 7 and is finally discharged to the outside through the gas outlet pipe 8.

[0045] During the waste gas treatment process, the motor 11 controls the rotation of the power shaft 12, which in turn drives the drive ring 10 to rotate via the fixed frame 13. The drive ring 10 controls the slide 9 to rotate at the bottom of the purification tank 2. The slide 9 drives the graphene photocatalytic ring plate 5 to rotate back and forth inside the purification tank 2. The centrifugal force generated by the rotation will cause the waste gas to move in a spiral motion along the channels of the graphene photocatalytic ring plate 5, prolonging the residence time of the waste gas in the channels. During the rotation, the graphene photocatalytic ring plate 5 and the airflow in the gap will generate relative motion, breaking the steady flow field between the adsorption layer and the catalyst layer, so that the small molecule VOCs that are not adsorbed by the activated carbon can fully collide with the active sites of the catalyst, and the reaction probability of hydroxyl radicals and VOCs will be increased, thereby improving the waste gas purification effect.

[0046] Multiple annular ultraviolet LED bidirectional light sources 53 are embedded inside the graphene photocatalytic ring plate 5. The annular ultraviolet LED bidirectional light sources 53 can irradiate the inside of the graphene photocatalytic ring plate 5. Together with the strip ultraviolet LED light sources 6, they can improve the catalytic decomposition effect of waste gas. During the reciprocating rotation of the graphene photocatalytic ring plate 5, the positioning strip 51 on the graphene photocatalytic ring plate 5 rotates synchronously. The transmission column 54 slidably connected in the positioning strip 51 slides along the direction of the V-shaped slide 56 during the reciprocating rotation. At the same time, the transmission column 54 slides along the direction of the slide groove 55 on the positioning strip 51, so that the transmission column 54 drives the annular ultraviolet LED bidirectional light source 53 to move longitudinally back and forth, maintain axial scanning irradiation, cover the entire axial area of ​​the graphene photocatalytic ring plate 5, eliminate axial light blind spots, and ensure that the graphene photocatalytic ring plates 5 of different heights can react efficiently, so that the waste gas can be fully purified and treated.

[0047] Example 2: Please refer to Figure 5 , Figure 10and Figure 11 Based on Embodiment 1, a dispersion mechanism is also disclosed, the specific structure of which is as follows: A threaded rod 14 is fixedly connected to the power shaft 12 along the axial direction. An internally threaded post 15 is threadedly installed above the threaded rod 14. A fixed disc 16 is fixedly installed on the upper surface of the internally threaded post 15. The fixed disc 16 is fixedly installed inside the air inlet screen cylinder 33. A guide groove 35 is opened inside the lower cylinder 32. A guide strip 36 is longitudinally slidably installed in the guide groove 35. The guide strip 36 is fixedly installed on the lower surface of the fixed disc 16. A dispersion mechanism for dispersing modified activated carbon and molecular sieves in the filter screen cylinder 42 by shaking along the radial direction is provided on the limiting disc 34.

[0048] Please see Figure 4 - Figure 6 The dispersion mechanism includes an elastic dispersion frame 17 fixed at equal angles along the central axis to the upper and lower end faces inside the purification tank 2. The elastic dispersion frame 17 is longitudinally slidably connected to the limiting plate 34, and the part of the elastic dispersion frame 17 located in the filter screen cylinder 42 is inclined. Multiple uprights 18 are fixed at equal angles along the central axis on the surface of the limiting plate 34, and the end faces of the uprights 18 are in contact with the inclined surface of the elastic dispersion frame 17.

[0049] After being catalyzed by the graphene photocatalytic ring plate 5, ozone is generated. When the graphene photocatalytic ring plate 5 rotates, it is thrown towards the activated carbon by centrifugal force, forming a uniform ozone diffusion field. This oxidizes and decomposes the organic pollutants already adsorbed on the surface of the activated carbon, extending the service life of the activated carbon for adsorbing waste gas and reducing the cost of replacing the activated carbon. At the same time, when the power shaft 12 rotates, it can drive the threaded rod 14 to rotate synchronously. Under the threaded drive, it can control the internal threaded column 15 to move up and down reciprocally. The internal threaded column 15 drives the air intake screen cylinder 33 to move up and down synchronously through the fixed disc 16. The air intake screen cylinder 33 drives the two sets of limiting discs 34 to move up and down in the hollow ring 41. The limiting discs 34 control the activated carbon to shake and disperse in the filter screen cylinder 42, preventing the activated carbon from all accumulating and sticking together. This allows the waste gas to fully contact the surface of the activated carbon, and at the same time, it allows the ozone generated by decomposition to fully contact the surface of the activated carbon, improving the effect of activated carbon in treating waste gas.

[0050] Furthermore, during the reciprocating motion of the limiting plate 34, it moves up and down outside the elastic dispersion frame 17. The upright rod 18 fixed on the limiting plate 34 moves up and down and contacts and presses against the inclined surface of the elastic dispersion frame 17. After the elastic dispersion frame 17 is subjected to pressure until the pressure is released, it elastically shakes in the filter screen cylinder 42, dispersing the activated carbon in the filter screen cylinder 42 in the radial direction, so that the activated carbon can be evenly dispersed in the filter screen cylinder 42, which helps to improve the effect of waste gas purification.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A furniture production waste gas purification treatment equipment, comprising a support (1) and a purification tank (2) fixed on the support (1), characterized in that: The purification tank (2) is provided with an air inlet assembly (3) along the axial direction, a filter assembly (4) and a graphene photocatalytic ring plate (5) are arranged in the purification tank (2), the air inlet assembly (3), the filter assembly (4) and the graphene photocatalytic ring plate (5) are coaxial, the filter assembly (4) is located between the air inlet assembly (3) and the graphene photocatalytic ring plate (5), a plurality of strip-shaped ultraviolet LED light sources (6) are fixed on the inner wall of the purification tank (2) along the central axis direction at equal angles, and the plurality of strip-shaped ultraviolet LED light sources (6) are arranged in a ring shape outside the graphene photocatalytic ring plate (5); An air outlet channel (7) is arranged on the upper part of the purification tank (2), and an air outlet pipe (8) is arranged on the air outlet channel (7); The purification tank (2) is provided with a rotating mechanism for driving the graphene photocatalytic ring plate (5) to rotate reciprocatingly to prolong the reaction time, and the graphene photocatalytic ring plate (5) is provided with a catalytic reaction mechanism for dynamically catalyzing and decomposing exhaust gas.

2. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 1, characterized by: The air inlet assembly (3) comprises an upper cylinder (31) fixed on the top of the purification tank (2), a lower cylinder (32) fixedly arranged on the inner bottom surface of the purification tank (2), and an air inlet screen cylinder (33) slidably connected between the upper cylinder (31) and the lower cylinder (32) along the axial direction, and the air inlet screen cylinder (33) is in communication with the filter assembly (4).

3. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 2, characterized by: The filter assembly (4) comprises hollow rings (41) fixedly arranged on the top and bottom surfaces of the purification tank (2), and a filter screen cylinder (42) fixedly connected between the two groups of hollow rings (41). The filter screen cylinder (42) and the air inlet screen cylinder (33) are filled with modified activated carbon and molecular sieve. Two groups of limiting discs (34) are fixedly arranged outside the air inlet screen cylinder (33), and the two groups of limiting discs (34) are slidably arranged on the inner sides of the two groups of hollow rings (41), respectively, and the two groups of limiting discs (34) are arranged above and below the modified activated carbon and the molecular sieve.

4. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 3, characterized by: The rotating mechanism comprises a sliding seat (9) slidably arranged on the bottom of the purification tank (2), the sliding seat (9) is fixedly arranged on the bottom of the graphene photocatalytic ring plate (5), and the bottom of the sliding seat (9) is fixedly provided with a driving ring (10), and the driving ring (10) is arranged on the bottom of the purification tank (2). A motor (11) is fixedly arranged on the support (1), a power shaft (12) is connected to the output end of the motor (11), and the power shaft (12) is fixedly connected to the driving ring (10) through a fixing frame (13).

5. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 1, characterized by: The catalytic reaction mechanism comprises a positioning strip (51) embedded in the graphene photocatalytic ring plate (5) at equal angles along the central axis direction, an embedded groove (52) is formed in the graphene photocatalytic ring plate (5) and the positioning strip (51), and a ring-shaped ultraviolet LED bidirectional light source (53) is slidably arranged in the embedded groove (52).

6. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 5, characterized by: A transmission column (54) is vertically fixed on the ring-shaped ultraviolet LED bidirectional light source (53), a sliding groove (55) is longitudinally formed in the positioning strip (51), and the transmission column (54) is slidably connected in the sliding groove (55). A V-shaped slide (56) is fixedly arranged on the inner wall of the purification tank (2), and the transmission column (54) is slidably connected in the V-shaped slide (56).

7. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 4, characterized by: The power shaft rod (12) is fixedly connected with a threaded rod (14) along the axial direction, the threaded rod (14) is threadedly connected with an internally threaded column (15) above, the internally threaded column (15) is fixedly connected with a fixed disc (16) on the upper surface, and the fixed disc (16) is fixedly installed in the interior of the air inlet screen cylinder (33).

8. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 7, characterized by: The lower cylinder (32) is internally provided with a guide groove (35), the guide groove (35) is longitudinally slidably connected with a guide strip (36), and the guide strip (36) is fixedly connected with the lower surface of the fixed disc (16).

9. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 8, characterized by: The limiting disc (34) is provided with a dispersion mechanism for shaking and dispersing the modified activated carbon and the molecular sieve in the filter screen cylinder (42) along the radial direction.

10. The furniture manufacturing exhaust gas purification treatment apparatus according to claim 9, characterized by: The dispersion mechanism comprises a resilient dispersion frame (17) fixedly arranged on the upper and lower end faces of the interior of the purification tank (2) along the central axis direction at equal angles, the resilient dispersion frame (17) is longitudinally slidably connected with the limiting disc (34), and the part of the resilient dispersion frame (17) located in the filter screen cylinder (42) is in an inclined shape. The limiting disc (34) is fixedly provided with a plurality of vertical rods (18) along the central axis direction at equal angles, and the end face of the vertical rod (18) is in abutting contact with the inclined surface of the resilient dispersion frame (17).

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