Volatile organic compounds (VOCS) waste gas treatment device

Abstract

The invention relates to a VOCS waste gas treatment device. The VOCS waste gas treatment device comprises a rack; the humidity treatment unit is used for performing humidity pretreatment on the waste gas; the adsorption concentration unit is used for adsorbing and purifying by using activated carbon; the thermal oxidation unit is used for performing high-temperature decomposition through high-temperature hot air; the adsorption and concentration unit comprises a box body arranged on the rack; the activated carbon mechanism is arranged in the box body and is used for adsorbing and purifying the waste gas; the humidity treatment unit is arranged in the box body and comprises a treatment box, and the humidity of waste gas is adjusted after the waste gas passes through the treatment box; the condensing mechanism is used for condensing moisture in the waste gas; the receiving mechanism is used for receiving the condensate water; and the adjusting mechanism is used for accelerating collection of condensate water. The reciprocating wiping frequency of the adsorption assembly is increased due to quick water accumulation and frequent weight change of the receiving box, the efficiency of controlling the humidity of the waste gas is improved, and normal operation of waste gas treatment work is ensured.

Description

Technical Field

[0001] This application relates to the technical field of waste gas purification, and in particular to a device for treating VOCs waste gas. Background Technology

[0002] With the rapid pace of industrialization, volatile organic compounds (VOCs) emitted by industries such as petrochemicals, coating, and printing have become a major source of air pollution. VOCs are not only key precursors to PM2.5 and ozone formation, but some are also toxic and carcinogenic. Therefore, efficient and energy-saving VOCs treatment devices are an urgent need in the environmental protection field. Existing VOCs treatment devices, especially those targeting large volumes of low-concentration waste gas, typically employ a combined process of "adsorption concentration + oxidation combustion." The basic working principle is as follows: the waste gas first undergoes pretreatment to remove particulate matter, then enters a zeolite rotor or activated carbon adsorption bed for adsorption, and the purified gas meets emission standards. After adsorption saturation, the adsorbent is desorbed and regenerated using high-temperature hot air. The desorbed, highly concentrated gas then enters an RTO (regenerative thermal oxidizer) or RCO (catalytic oxidation furnace) for high-temperature decomposition, converting it into carbon dioxide and water, while simultaneously recovering heat for the desorption process.

[0003] Many VOC emissions have high humidity, such as paint spraying exhaust. Water molecules will competitively occupy the pores of the activated carbon adsorbent, resulting in a significant decrease in the adsorption capacity for VOCs. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a VOCs waste gas treatment device.

[0005] The VOCs waste gas treatment device provided in this application adopts the following technical solution: A VOCs waste gas treatment device, comprising: frame; The humidity treatment unit pre-treats the exhaust gas to reduce humidity. The adsorption concentration unit utilizes activated carbon for adsorption and purification; and The thermal oxidation unit uses high-temperature hot air to perform high-temperature decomposition. The adsorption concentration unit includes: The enclosure, mounted on a rack; and The activated carbon mechanism is installed inside the box and adsorbs and purifies the exhaust gas. The humidity processing unit is disposed inside the box and includes: The humidity is adjusted after the exhaust gas passes through the treatment box. A condensation mechanism is used to condense moisture in exhaust gas. The receiving mechanism receives condensate; and Adjustment mechanism for accelerating condensate collection.

[0006] Furthermore, the receiving mechanism includes: The receiving box is slidably mounted on the processing box along the vertical direction; The water outlet is equipped with a solenoid valve; and A flexible component is used to enable the receiver box to automatically reset; The receiving box is located at the water inlet of the condensation mechanism, and the elastic component provides power to the adjustment mechanism.

[0007] Furthermore, the adjustment mechanism includes: A support bracket is mounted on the processing box and located below the condensation mechanism; An adsorption assembly, movably mounted on the support and used to adsorb condensate; and The transmission component is used to realize the reciprocating motion of the adsorption component; The adsorption component accelerates the condensation rate after adsorbing the condensate on the condensation mechanism, and the adsorption component has the function of squeezing out the condensate on its own.

[0008] Furthermore, the adsorption component includes: An adsorption rack is elastically slidably mounted on the support and its movement is controlled by a transmission component; The frame is flexibly mounted on the suction holder; The control unit is used to control the movement of the frame; The dewatering section achieves the effect of self-extracting water through phase change; and Water-absorbing component, used to absorb condensate from the condensation mechanism; The direction of movement of the adsorption rack is parallel to the tilt direction of the condensation mechanism, and the water-absorbing component adsorbs the condensate during the sliding process.

[0009] Furthermore, the dewatering section includes: A grid frame, set inside a hollow structure; Phase change assembly, mounted on a grid frame, uses phase change to expel water from the absorbent element; and The heating unit heats the grid frame and the frame itself. The frame is also hollow and interconnected with the grid frame. Multiple water-absorbing components are provided and are all located in the grid cavity of the grid frame. The thickness of the water-absorbing components is greater than the thickness of the frame and the grid frame. The heating unit introduces heat from the thermal oxidation unit into the grid frame and the frame until the temperature exceeds the phase change temperature of the phase change unit, at which point it begins to compress the adsorbent.

[0010] Furthermore, the phase transition group includes: Phase change plates are disposed on the inner wall of the mesh cavity; The phase change plates are set in multiple pairs, with each pair of phase change plates set on opposite side walls of the grid cavity of the grid frame.

[0011] Furthermore, the transmission assembly includes: Rack one is fixedly connected to the side wall of the receiving box; Rack two is slidably connected to the processing box; Gears are rotatably connected to the processing box; The transmission rope is fixedly connected at one end to the end of rack two and at the other end to the suction frame; and Guide rollers are used to guide the drive rope; The gear is meshed with both rack one and rack two, and rack one and rack two are located on opposite sides of the gear. The transmission rope is taut during the movement.

[0012] Furthermore, the control unit includes: Electromagnets are used to attract and lock the frame; Shape memory alloy wires are fixed on the adsorption frame; The control block has a concave cavity and is fixedly connected to one end of the shape memory alloy wire; The lever is rotatably connected to the adsorption frame and its rotation position is close to the control block; The control rope is fixedly connected at one end to the frame and at the other end to the corresponding end of the lever. Springs are used to connect the suction holder to the frame; and The heat-conducting assembly transfers heat from the thermal oxidation unit to the shape memory alloy wire; During the movement, the frame adsorbs the condensation mechanism, and after the shape memory alloy wire undergoes a phase change, it pulls the frame back to its initial position.

[0013] In summary, the beneficial technical effects of this application are as follows: 1. In existing VOCs waste gas pretreatment condensation devices, the condensed liquid water tends to form a continuous liquid film on the surface of the condenser plate. Since the thermal conductivity of water is lower than that of the metal substrate, this continuously thickening liquid film forms additional thermal resistance, reducing the heat exchange between the condenser plate and the waste gas, resulting in a significant decrease in the condensation rate as the operating time increases. Therefore, the regulating mechanism is used to fully adsorb the condensed water on the condenser plate to accelerate the condensation rate. 2. As the weight of the condensate in the receiving box increases, the receiving box begins to move downwards, while rack two moves upwards under the action of the gear and rack one. Under the elastic action between the adsorption frame and the support, the adsorption frame begins to move along the support. This water-absorbing component begins to wipe and absorb water from the condensation mechanism. When the water-absorbing component moves to the highest point of the condensation mechanism, the control outlet begins to discharge the condensate. Under the elastic action between the receiving box and the processing box, the transmission rope begins to pull the adsorption frame to the initial position. 3. After the water-absorbing component has finished absorbing water, it needs to be moved above the water receiving tank. The electromagnet is then de-energized, and the frame moves above the water receiving tank under the action of elasticity. One end of the lever swings in the control block and swings to the other end of the concave cavity. At this time, by heating the frame and the adsorption frame, the phase change sheet begins to change phase and squeezes the water-absorbing component to expel water. After the water is expelled, the shape memory alloy wire is heated. The shape memory alloy wire begins to contract and pulls the lever to swing. The lever drives the frame to move to the initial position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the adsorption and concentration unit according to an embodiment of this application; Figure 3 This is a schematic diagram of the humidity processing unit according to an embodiment of this application; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the water-squeezing section in an embodiment of this application.

[0015] Explanation of reference numerals in the attached figures: 1. Rack; 2. Adsorption and concentration unit; 21. Box body; 22. Activated carbon mechanism; 3. Thermal oxidation unit; 40. Processing tank; 41. Receiving tank; 42. Outlet; 43. Elastic component; 44. Support; 45. Adsorption rack; 46. Frame; 47. Water absorption component; 48. Grid frame; 49. Phase change plate; 410. Heating unit; 411. Rack one; 412. Rack two; 413. Gear; 414. Transmission rope; 415. Guide roller; 416. Electromagnet; 417. Shape memory alloy wire; 418. Lever; 419. Control block; 420. Concave cavity; 421. Control rope; 422. Heat-conducting ring; 5. Condensation mechanism. Detailed Implementation

[0016] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] This application discloses a device for treating VOCs waste gas. (Refer to...) Figures 1-5 It includes a frame 1; a humidity treatment unit for pre-treating the humidity of the waste gas; an adsorption concentration unit 2 for purification using activated carbon adsorption; and a thermal oxidation unit 3 for high-temperature decomposition using high-temperature hot air. The waste gas is first pre-treated to remove particulate matter, and then enters the humidity treatment unit for further treatment to ensure that the humidity of the waste gas entering the next step, the adsorption concentration unit 2, meets the standards. The adsorption concentration unit 2 uses activated carbon for adsorption, and the waste gas enters the activated carbon adsorption bed for adsorption. The purified gas is discharged in compliance with standards. The high-concentration concentrated gas desorbed enters a regenerative oxidizer or catalytic oxidizer for high-temperature decomposition, converting it into carbon dioxide and water. At the same time, the heat is recovered for the desorption process. Of course, in this embodiment, the waste heat of the thermal oxidation unit 3 is also required.

[0018] The adsorption concentration unit 2 includes: a housing 21, mounted on the frame 1; and an activated carbon mechanism 22, mounted inside the housing 21, which adsorbs and purifies the waste gas. Along the direction of waste gas movement, the waste gas needs to be washed with water before entering the housing 21, and its temperature will be close to the circulating water temperature, usually 20℃-30℃. Therefore, it will not affect the phase change of the shape memory alloy in this embodiment. After the waste gas enters the housing 21, it first passes through the humidity treatment unit and then enters the activated carbon adsorption mechanism. The humidity treatment unit is located inside the housing 21 and includes: a treatment box 40, through which the humidity of the exhaust gas is adjusted; a condensation mechanism 5 for condensing the moisture in the exhaust gas; a receiving mechanism for receiving the condensate; and an adjustment mechanism for accelerating the collection of condensate. The condensation mechanism 5 uses a condensation plate as in the prior art, which can condense the moisture in the exhaust gas. In this embodiment, the condensation plate is inclined so that it can be received by the receiving mechanism. The adjustment mechanism is used to accelerate the collection of condensate. In existing VOCs exhaust gas pretreatment condensation devices, the condensed liquid water tends to form a continuous liquid film on the surface of the condensation plate. Since the thermal conductivity of water is lower than that of the metal substrate, this continuously thickening liquid film forms additional thermal resistance, reducing the heat exchange between the condensation plate and the exhaust gas, resulting in a significant decrease in the condensation rate as the operating time increases. Therefore, the adjustment mechanism is used to fully adsorb the condensate on the condensation plate.

[0019] The receiving mechanism includes: a receiving box 41, which is slidably mounted on the processing box 40 in a vertical direction; a water outlet 42, which is equipped with a solenoid valve; and an elastic component 43, which is used to realize the automatic reset of the receiving box 41. In this embodiment, the elastic component 43 is configured as a sliding rod and an elastic recovery member. The processing box 40 is provided with a sliding hole for sliding, and the elastic recovery member is sleeved on the sliding rod. The cooperation between the sliding rod and the sliding hole is to limit the movement direction of the receiving box 41. The receiving box 41 is located at the water droplet of the condensation mechanism 5. The elastic component 43 provides power to the adjustment mechanism. In this embodiment, the gravity of the continuously increasing condensate in the receiving box 41 and the elastic force of the elastic recovery member are combined to provide gravity for the adjustment mechanism. Since the condensation plate is inclined, the condensate gradually drips downward under its own weight until it drips into the receiving box 41. The water outlet 42 at the bottom of the receiving box 41 continuously flows out of the condensate. After its weight decreases, the receiving box 41 returns to its initial position under the action of the elastic recovery member.

[0020] The adjustment mechanism includes: a support 44, which is disposed on the processing box 40 and close to the lower part of the condensation mechanism 5; an adsorption component, which is movably disposed on the support 44 and is used to adsorb condensate; and a transmission component, which is used to realize the reciprocating motion of the adsorption component; after the adsorption component has adsorbed the condensate on the condensation mechanism 5, it accelerates the condensation speed. The adsorption component has a self-squeezing function for condensate. The adsorption component is used to adsorb the condensate on the condensation mechanism 5 during the sliding process. After the adsorption component has completed the condensate adsorption work, it needs to perform a squeezing operation to facilitate the next condensate adsorption work.

[0021] The adsorption assembly includes: an adsorption rack 45, which is elastically slidably disposed on a support 44 and whose movement is controlled by a transmission assembly; a frame 46, which is elastically disposed on the adsorption rack 45; and a control unit for controlling the movement of the frame 46. The adsorption rack 45 and the support 44 are also elastically connected by multiple springs. In the initial state, the multiple springs are in a compressed state, which facilitates the movement of the frame 46 toward the condenser plate. The water-squeezing section achieves the effect of squeezing out water through phase change; and the water-absorbing component 47 is used to absorb condensate on the condensing mechanism 5. In this embodiment, the water-absorbing component 47 is made of a material with strong water absorption capacity, that is, when the water-absorbing component 47 moves from the condensing mechanism 5, it can absorb the condensate remaining on it. The movement direction of the adsorption frame 45 is parallel to the tilt direction of the condensing mechanism 5. The water-absorbing component 47 absorbs condensate during the sliding process. In actual operation, the initial position of the adsorption frame 45 and the water-absorbing component 47 needs to avoid the receiving box 41 so that the condensate on the condensing mechanism 5 can start to drip. After the water-absorbing component 47 completes the water absorption work, the frame 46 is controlled by the control unit to move on the adsorption frame 45 until the water-absorbing component 47 moves above the water receiving box. At this time, the water-squeezing section is used to squeeze the water out of the water-absorbing component 47, realizing the effect of absorbing water from the condensing mechanism 5 and squeezing water from the water-absorbing component 47.

[0022] The dewatering section includes: a mesh frame 48, which is hollow inside the frame 46; a phase change assembly, which is mounted on the mesh frame 48 and dewaters the absorbent members 47 through a phase change process; and a heating assembly 410, which heats the mesh frame 48 and the frame 46. The frame 46 is also hollow and interconnected with the mesh frame 48. Multiple absorbent members 47 are provided, all located within the mesh cavities of the mesh frame 48, and the thickness of each absorbent member 47 is greater than the thickness of the frame 46 and the mesh frame 48. The heating assembly 410 introduces heat from the thermal oxidation unit 3 into the mesh frame 48 and the frame 46 until the temperature exceeds the phase change assembly temperature. When the temperature changes, the adsorption component is squeezed. The grid frame 48 is provided with multiple grid cavities. The water absorption component 47 is adhered to the side wall of the non-phase change group in the grid cavity of the grid frame 48 by glue. The frame 46 and the grid frame 48 are made of materials with strong heat transfer capacity so as to heat the phase change group. In this embodiment, the waste heat of the thermal oxidation unit 3 is drawn into the grid frame 48 and the frame 46 for circulation. When the hot air circulates in the grid frame 48 and the frame 46, it undergoes heat transfer with the phase change group. In this embodiment, the heating group 410 is selected from the exhaust fan and multiple air ducts. Multiple solenoid valves need to be installed on the air ducts to facilitate the airflow in the air ducts.

[0023] The phase change assembly includes: phase change plates 49, which are disposed on the inner wall of the grid cavity; multiple phase change plates 49 are disposed in pairs, and each pair of phase change plates 49 is disposed on opposite side walls of the grid cavity of the grid frame 48. The phase change plates 49 are made of shape memory alloy material, such as iron-nickel alloy, and their phase change temperature is higher than the temperature inside the box 21 and lower than the temperature at which the thermal oxidation unit 3 transfers heat. In the initial state, the phase change plates 49 are concave, that is, they bulge away from the water absorption component 47. When the phase change plates 49 undergo phase change, they become convex. Under the action of the two convex phase change plates 49, the water absorption component 47 is squeezed. Of course, the phase change plates 49 can be deformed multiple times, and the heating and cooling process is continuously cycled. Due to the flow of exhaust gas inside the box 21, the cooling speed of the phase change plates 49 is also accelerated. Therefore, the water squeezing operation of the water absorption component 47 is achieved through the multiple changes of the phase change plates 49 in the inner and outer and convex states.

[0024] The transmission assembly includes: rack one 411, fixedly connected to the side wall of receiving box 41; rack two 412, slidably connected to processing box 40; gear 413, rotatably connected to processing box 40; transmission rope 414, one end fixedly connected to the end of rack two 412, and the other end fixedly connected to adsorption frame 45; and guide roller 415 for guiding transmission rope 414; gear 413 is meshed with rack one 411 and rack two 412, and rack one 411 and rack two 412 are located on both sides of gear 413. The transmission rope is taut during movement, and rack one 411 and rack two 412 slide within processing box 40. Adsorption frame 45 and support 44 are also elastically connected by multiple springs. In the initial state, adsorption frame 45 is close to the bottom of condensation mechanism 5, and the corresponding spring is compressed and deformed. In this embodiment, the elasticity of the receiving box 41 is set to be greater than that of the adsorption frame 45. Therefore, as the condensate in the receiving box 41 increases in weight, the receiving box 41 begins to move downwards, while the rack 412 moves upwards under the action of the gear 413 and the rack 411. Under the elastic action between the adsorption frame 45 and the support 44, the adsorption frame 45 begins to move along the support 44. The water-absorbing component 47 begins to wipe and absorb water from the condensation mechanism 5. When the water-absorbing component 47 moves to the highest point of the condensation mechanism 5, the control outlet 42 begins to discharge condensate. Under the elastic action between the receiving box 41 and the processing box 40, the transmission rope 414 begins to pull the adsorption frame 45 to the initial position without affecting the normal drainage operation of the condensation mechanism 5. In this embodiment, the water-absorbing component 47 is preferably not in contact with the condensation structure in the initial position to prevent the normally dripping condensate from being adsorbed.

[0025] The control unit includes: an electromagnet 416 for adsorbing and locking the frame 46; the electromagnet 416 is installed on the adsorption rack 45. In the initial state, that is, when the adsorption rack 45 and the water absorption component 47 are far away from the condensation mechanism 5, the electromagnet 416 is energized and can then adsorb and lock the frame 46. A shape memory alloy wire 417 is fixed on an adsorption frame 45; a control block 419 has a concave cavity 420 and is fixedly connected to one end of the shape memory alloy wire 417; a lever 418 is rotatably connected to the adsorption frame 45 and rotates close to the control block 419; a control rope 421 is fixedly connected at one end to a frame 46 and at the other end to the corresponding end of the lever 418; a spring is used to connect the adsorption frame 45 and the frame 46; and a heat-conducting assembly is used to transfer heat from the thermal oxidation unit 3 to the shape memory alloy wire 417; the frame 46 adsorbs the condensation mechanism 5 during movement, and the shape memory alloy wire 417 pulls the frame 46 to its initial position after a phase change; in the initial state of the shape memory alloy wire 417, the corresponding end of the lever 418 is located in the concave cavity 420 of the control block 419 close to one end of the shape memory alloy wire 417, the control rope 421 is taut throughout the process, and the spring corresponding to the frame 46 is also compressed. The heat-conducting assembly uses a heat-conducting ring 422, an exhaust fan, and multiple exhaust pipes. Similarly, the exhaust pipes connect the exhaust fan and the heat-conducting ring 422. The heat-conducting ring 422 is sleeved around the shape memory alloy wire 417 and in close contact with it. The heat-conducting ring 422 is also made of a material with good thermal conductivity to facilitate heating of the shape memory alloy wire 417. After the water-absorbing component 47 finishes its water-absorbing work, it needs to be moved above the water receiving tank. The electromagnet 416 is de-energized, and then, under the action of elasticity, the frame 46 moves above the water receiving tank. One end of the lever 418 is controlled... The block 419 swings within the concave cavity 420 until it reaches the other end. At this point, the frame 46 and the adsorption rack 45 are heated, causing the phase change plate 49 to undergo a phase change and expel water from the water-absorbing component 47. Once the water is expelled, the shape memory alloy wire 417 is heated, causing it to contract and pull the lever 418 to swing. The lever 418 moves the frame 46 to its initial position, and the frame 46 is then attracted by the electromagnet 416. The heating of the heat-conducting ring 422 is then removed until it cools down, at which point the control block 419 moves back to its initial position.

[0026] The implementation principle of a VOCs waste gas treatment device in this application embodiment is as follows: In the existing VOCs waste gas pretreatment condensation device, the condensed liquid water tends to form a continuous liquid film on the surface of the condenser plate. Since the thermal conductivity of water is lower than that of the metal substrate, this continuously thickening liquid film forms additional thermal resistance, which reduces the heat exchange between the condenser plate and the waste gas, resulting in a significant decrease in the condensation rate as the operating time increases. Therefore, the adjustment mechanism is used to fully adsorb the condensed water on the condenser plate to accelerate the condensation rate. As the condensate inside the receiving box 41 increases in weight, the receiving box 41 begins to move downwards, while rack 2 412 moves upwards under the action of gear 413 and rack 1 411. Under the elastic action between the adsorption frame 45 and the support 44, the adsorption frame 45 begins to move along the support 44. The water suction component 47 begins to wipe and absorb water from the condensation mechanism 5. When the water suction component 47 moves to the highest point of the condensation mechanism 5, the control outlet 42 begins to discharge the condensate. Under the elastic action between the receiving box 41 and the processing box 40, the transmission rope 414 begins to pull the adsorption frame 45 to the initial position. After the water-absorbing component 47 finishes absorbing water, it needs to be moved above the water receiving tank. The electromagnet 416 is de-energized, and the frame 46 moves above the water receiving tank under the action of elasticity. One end of the lever 418 swings in the control block 419 and swings to the other end of the concave cavity 420. At this time, by heating the frame 46 and the adsorption frame 45, the phase change plate 49 begins to change phase and squeezes the water-absorbing component 47 to expel water. After the water is expelled, the shape memory alloy wire 417 is heated. The shape memory alloy wire 417 begins to contract and pulls the lever 418 to swing. The lever 418 drives the frame 46 to move to the initial position.

[0027] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for treating VOCs waste gas, characterized in that, include: frame; The humidity treatment unit pre-treats the exhaust gas to reduce humidity. The adsorption concentration unit utilizes activated carbon for adsorption and purification. as well as The thermal oxidation unit uses high-temperature hot air to perform high-temperature decomposition. The adsorption concentration unit includes: The enclosure, mounted on a rack; and The activated carbon mechanism is installed inside the box and adsorbs and purifies the exhaust gas. The humidity processing unit is disposed inside the box and includes: The humidity is adjusted after the exhaust gas passes through the treatment box. A condensation mechanism is used to condense moisture in exhaust gas. The receiving mechanism receives condensate; and Adjustment mechanism for accelerating condensate collection.

2. The VOCs waste gas treatment device according to claim 1, characterized in that, The receiving institution includes: The receiving box is slidably mounted on the processing box along the vertical direction; The water outlet is equipped with a solenoid valve; and A flexible component is used to enable the receiver box to automatically reset; The receiving box is located at the water inlet of the condensation mechanism, and the elastic component provides power to the adjustment mechanism.

3. The VOCs waste gas treatment device according to claim 2, characterized in that, The adjustment mechanism includes: A support bracket is mounted on the processing box and located below the condensation mechanism; An adsorption assembly, movably mounted on the support and used to adsorb condensate; and The transmission component is used to realize the reciprocating motion of the adsorption component; The adsorption component accelerates the condensation rate after adsorbing the condensate on the condensation mechanism, and the adsorption component has the function of squeezing out the condensate on its own.

4. The VOCs waste gas treatment device according to claim 3, characterized in that, The adsorption component includes: An adsorption rack is elastically slidably mounted on the support and its movement is controlled by a transmission component; The frame is flexibly mounted on the suction holder; The control unit is used to control the movement of the frame; The dewatering section achieves the effect of self-extracting water through phase change; and Water-absorbing component, used to absorb condensate from the condensation mechanism; The direction of movement of the adsorption rack is parallel to the tilt direction of the condensation mechanism, and the water-absorbing component adsorbs the condensate during the sliding process.

5. The VOCs waste gas treatment device according to claim 4, characterized in that, The dewatering section includes: A grid frame, set inside a hollow structure; Phase change assembly, mounted on a grid frame, uses phase change to expel water from the absorbent element; and The heating unit heats the grid frame and the frame itself. The frame is also hollow and interconnected with the grid frame. Multiple water-absorbing components are provided and are all located in the grid cavity of the grid frame. The thickness of the water-absorbing components is greater than the thickness of the frame and the grid frame. The heating unit introduces heat from the thermal oxidation unit into the grid frame and the frame until the temperature exceeds the phase change temperature of the phase change unit, at which point it begins to compress the adsorbent.

6. The VOCs waste gas treatment device according to claim 5, characterized in that, The phase transition group includes: Phase change plates are disposed on the inner wall of the mesh cavity; The phase change plates are set in multiple pairs, with each pair of phase change plates set on opposite side walls of the grid cavity of the grid frame.

7. The VOCs waste gas treatment device according to claim 6, characterized in that, The transmission assembly includes: Rack one is fixedly connected to the side wall of the receiving box; Rack two is slidably connected to the processing box; Gears are rotatably connected to the processing box; The transmission rope is fixedly connected at one end to the end of rack two and at the other end to the suction frame; and Guide rollers are used to guide the drive rope; The gear is meshed with both rack one and rack two, and rack one and rack two are located on opposite sides of the gear. The transmission rope is taut during the movement.

8. The VOCs waste gas treatment device according to claim 7, characterized in that, The control unit includes: Electromagnets are used to attract and lock the frame; Shape memory alloy wires are fixed on the adsorption frame; The control block has a concave cavity and is fixedly connected to one end of the shape memory alloy wire; The lever is rotatably connected to the adsorption frame and its rotation position is close to the control block; The control rope is fixedly connected at one end to the frame and at the other end to the corresponding end of the lever. Springs are used to connect the suction holder to the frame; and The heat-conducting assembly transfers heat from the thermal oxidation unit to the shape memory alloy wire; During the movement, the frame adsorbs the condensation mechanism, and after the shape memory alloy wire undergoes a phase change, it pulls the frame back to its initial position.

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