Waste gas treatment and emission reduction device and intelligent control system thereof

Abstract

The invention belongs to the technical field of waste gas treatment, and provides a waste gas treatment and emission reduction device and an intelligent control system thereof.The waste gas treatment and emission reduction device comprises a treatment box, a vertical pretreatment cavity is formed in the treatment box, a transverse oxidation cavity is formed in the top of the pretreatment cavity, and an air inlet hole is formed in the side wall, close to the bottom wall, of the treatment box; a filler layer is arranged in the pretreatment chamber, and a spraying assembly is arranged above the filler layer; the electric heater is externally connected with a power supply and mounted in the oxidation chamber, a catalytic bed I and a catalytic bed II are arranged on one side, far away from the pretreatment chamber, of the electric heater, the catalytic bed I is movably attached to the catalytic bed II, the bottom of the catalytic bed I is movably connected with the treatment box, a power displacement assembly is arranged on the top wall of the treatment box, and the power displacement assembly is connected with the catalytic bed II; through the arrangement of the waste gas treatment device, adjustment is performed according to the concentration of waste gas, and the waste gas treatment effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment and emission reduction device and its intelligent control system. Background Art

[0002] VOC waste gas usually refers to the waste gas generated during the processes of production, storage, transportation, use, and consumption. There are various types of VOC waste gas, including but not limited to acetone, toluene, phenol, dimethylaniline, formaldehyde, n-hexane, ethyl acetate, ethanol, etc. These organic substances mainly come from industries such as painting, injection molding, plastic production, stenter machines, chemical industry, and printing.

[0003] Waste gas has significant hazards to the environment and human health. If the waste gas is discharged into the atmosphere, it can react chemically with other substances to form photochemical smog, causing secondary pollution. Moreover, the irritation and toxicity of organic gases can cause acute poisoning or even death in high concentrations. Working and living in an environment of organic waste gas for a long time can lead to neurological disorders, organ function decline, blood and visceral diseases, and cancer.

[0004] Therefore, effective treatment methods need to be adopted for treatment. However, most of the existing traditional waste gas treatment devices operate with fixed parameters and cannot be adjusted in real time according to the fluctuations of waste gas composition, concentration, or flow rate, resulting in low treatment efficiency, high energy consumption, and also affecting the treatment effect of waste gas. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a waste gas treatment and emission reduction device and its intelligent control system to solve the problems of low efficiency and affecting the waste gas treatment effect in the existing technology during the treatment of waste gas.

[0006] A waste gas treatment and emission reduction device includes a treatment tank. A vertical pretreatment chamber is provided inside the treatment tank. A horizontal oxidation chamber is provided at the top of the pretreatment chamber. An air inlet hole is provided on the side wall of the treatment tank near the bottom wall. A packing layer is provided inside the pretreatment chamber, and a spraying assembly is provided above the packing layer;

[0007] It further includes an electric heater installed in the oxidation chamber and connected to an external power supply. A first catalytic bed and a second catalytic bed are provided on the side of the electric heater away from the pretreatment chamber. The first catalytic bed and the second catalytic bed are in movable contact. The bottom of the first catalytic bed is movably connected to the treatment tank. A power displacement assembly is provided on the top wall of the treatment tank, and the power displacement assembly is connected to the second catalytic bed.

[0008] Preferably, clamping holes are formed in opposite side walls of the treatment box and above the air inlet holes. A support plate inserted into the pretreatment chamber is arranged in each clamping hole. A packing shell is arranged on the outer wall of the packing layer. A grid plate is arranged at the bottom of the packing layer, and the grid plate is lapped on the top of the support plate.

[0009] Preferably, a bottom plate is arranged at the bottom of the treatment box. A buffer layer is arranged on the top of the bottom plate. An outlet is arranged on the bottom plate and the buffer layer. A plug plate is arranged on the treatment box and is formed in a side plate opposite to the air inlet hole and below the packing layer.

[0010] Preferably, the spraying assembly includes a swing plate, spray heads, a delivery pipe and a box body. A built-in water pump in the box body is installed on the outer wall of the treatment box. Swing shafts are arranged on the left and right side walls of the swing plate, and the swing shafts are rotatably connected to the treatment box. The spray heads are symmetrically distributed at intervals at the bottom of the swing plate. One end of the delivery pipe is connected to the box body, and the other end is connected to the spray heads. A swing assembly for shaking the swing plate left and right is arranged on the swing plate.

[0011] Preferably, the swing assembly includes a crank, a rocker and a motor I. The crank is rotatably connected to a side wall of the swing plate perpendicular to the swing shaft. One end of the rocker is movably connected to the crank. The crank is connected by two parallel straight rods and a vertical rod. The two straight rods are staggered and parallel, and the straight rods and the vertical rod are perpendicular to each other. The motor I with an external power supply is installed on the outer wall of the treatment box, and an output shaft of the motor I is connected to the other straight rod of the crank.

[0012] Preferably, the electric heater is installed at the junction of the pretreatment chamber and the oxidation chamber. A fan with an external power supply is arranged on the inner wall of the treatment box opposite to the electric heater, and the fan blows the waste gas in the pretreatment chamber onto the electric heater.

[0013] Preferably, a catalytic shell is arranged outside the first catalytic bed and the second catalytic bed. Rotating shafts are arranged on the left and right sides near the bottom of the catalytic shell outside the first catalytic bed, and the rotating shafts are movably connected in the treatment box. Limiting frame plates distributed symmetrically up and down are arranged outside the two catalytic shells. One limiting frame plate is fixedly connected to one catalytic shell and is in movable contact with the other catalytic shell. Rubber strips are arranged at the top of the first catalytic bed and the bottom of the second catalytic bed.

[0014] Preferably, a sliding hole is provided on the top plate of the treatment box. The sliding hole is opened above the first catalytic bed and extends along the direction of the outlet of the oxidation chamber. The power displacement assembly includes a sliding block, a lead screw, a ball nut and a second motor. The bottom of the sliding block is rotatably connected to the top of the second catalytic bed, and the sliding block extends out from the upper sliding hole. The lead screw is installed directly above the sliding hole. The ball nut is installed in the sliding block and cooperates with the lead screw. A foam layer is provided in the sliding hole, and a flow guide plate is provided near the outlet of the oxidation chamber.

[0015] An intelligent control system for an exhaust gas treatment and emission reduction device according to any one of claims 1-8, characterized in that it includes a sensor group, an edge computing controller and an actuator. The sensor group includes a gas component sensor for detecting the concentration of pollutants in the exhaust gas, a temperature and humidity sensor for monitoring the temperature and humidity of the exhaust gas, and a flow meter for measuring the flow rate of the exhaust gas in real time. The sensor group is deployed at the inlet of the device, the outlets of each treatment unit and inside key equipment;

[0016] The edge computing controller includes data processing, control algorithms and prediction models;

[0017] Data processing receives sensor data in real time, fuses multi-source data, and generates comprehensive status information of the exhaust gas treatment process;

[0018] The control algorithms include adaptive PID control and multi-objective optimization algorithms. Adaptive PID control can adjust parameters such as the temperature of the catalytic oxidation reactor and the power frequency of the plasma module. The PID parameters can be dynamically adjusted according to the composition and flow rate of the exhaust gas;

[0019] The multi-objective optimization algorithm can find the optimal balance point among the pollutant removal rate, energy consumption and equipment life;

[0020] The prediction models include an LSTM neural network and a pollutant concentration prediction model. The LSTM neural network is used to predict the saturation time of the adsorption tower and trigger the regeneration program in advance. The pollutant concentration prediction model predicts the change of the exhaust gas composition in the future period according to historical data and real-time input, and adjusts the treatment parameters in advance;

[0021] The actuator adjusts the operating state of the device according to the instructions of the controller, including the catalytic oxidation reactor and the spray tower. The electric heater in the oxidation chamber dynamically adjusts the temperature of the catalytic layer according to the VOC concentration and the exhaust gas flow rate; The chemical reactor can be adaptively adjusted according to the concentration of the exhaust gas;

[0022] The spray tower triggers the start of the spray device according to the prediction model to pre-treat the exhaust gas.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention arranges a packing layer in the pretreatment chamber, and a rotatable swing plate is arranged above the packing layer. A plurality of spray heads are connected to the bottom of the swing plate to contact with the exhaust gas in countercurrent. The acid gas in the exhaust gas reacts with the alkali solution to generate salt and water, and the acid gas in the exhaust gas is pre-treated to remove the acid gas and protect the subsequent catalyst. Moreover, the swing assembly can ensure the uniformity of the spraying and falling of the alkali solution.

[0025] By arranging an electric heater and catalytic bed 1 and catalytic bed 2 with catalysts inside in the oxidation chamber, the exhaust gas is further reacted after being pre-treated. The pollutant concentration of the exhaust gas treated by catalytic oxidation is greatly reduced. Moreover, catalytic bed 1 and catalytic bed 2 are movably fitted together and can be adjusted differently according to the concentration of the exhaust gas. The overall catalytic oxidation thickness and area of ​​the two are changed to ensure the treatment effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of the exhaust gas treatment device of the present invention Figure 1 ;

[0027] Figure 2 Schematic diagram of the structure of the exhaust gas treatment device of the present invention Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the internal components of the processing box of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the supporting plate and the packing layer and other components of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the swing plate and the swing assembly and other components of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the catalyst bed 1, catalyst bed 2 and dynamic displacement assembly components of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the processing box components of the present invention.

[0033] In the figure:

[0034] 1. Processing box; 2. Pretreatment chamber; 3. Oxidation chamber; 4. Air inlet hole; 5. Packing layer; 6. Electric heater; 7. Catalytic bed one; 8. Catalytic bed two; 9. Card hole; 10. Support plate; 11. Packing shell; 12. Grille plate; 13. Bottom plate; 14. Buffer layer; 15. Outlet; 16. Plug plate; 17. Swing plate; 18. Spray head; 19. Delivery pipe; 20. Box body; 21. Swing shaft; 22. Crank; 23. Rocker; 24. Motor one; 25. Fan; 26. Catalytic shell; 27. Rotating shaft; 28. Limit frame plate; 29. Rubber strip; 30. Sliding hole; 31. Sliding block; 32. Lead screw; 33. Ball nut; 34. Motor two; 35. Foam layer; 36. Deflector plate. Specific embodiments

[0035] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0036] As shown in the attached Figure 1 to the attached Figure 7 figures:

[0037] Embodiment 1: The present invention provides an exhaust gas treatment and emission reduction device, including a processing box 1. Inside the processing box 1, there is a vertical pretreatment chamber 2. At the top of the pretreatment chamber 2, there is a horizontal oxidation chamber 3. An air inlet hole 4 is provided on the side wall of the processing box 1 close to the bottom wall. Inside the pretreatment chamber 2, there is a packing layer 5. Above the packing layer 5, there is a spraying assembly;

[0038] It also includes an electric heater 6 installed in the oxidation chamber 3 and connected to an external power supply. On the side of the electric heater 6 away from the pretreatment chamber 2, there are a catalytic bed one 7 and a catalytic bed two 8. The catalytic bed one 7 and the catalytic bed two 8 are in movable contact. The bottom of the catalytic bed one 7 is movably connected to the processing box 1. On the top wall of the processing box 1, there is a power displacement assembly, and the power displacement assembly is connected to the catalytic bed two 8.

[0039] It should be noted that by arranging a packing layer 5 in the pretreatment chamber 2, a swing plate 17 that can rotate is arranged above the packing layer 5. A plurality of spray heads 18 are connected to the bottom of the swing plate 17. When the gas is introduced from below and moves upward, the acidic gas in the exhaust gas can be removed by the sprayed alkaline solution, and the exhaust gas is pre-treated, and the uniformity of spraying is improved;

[0040] By arranging an electric heater 6, a first catalytic bed 7 with a catalyst inside, and a second catalytic bed 8 inside the oxidation chamber 3, the exhaust gas is further reacted after being pretreated. After catalytic oxidation treatment, the pollutant concentration of the exhaust gas is significantly reduced. Moreover, the first catalytic bed 7 and the second catalytic bed 8 are movably attached together and can be adjusted differently according to the concentration of the exhaust gas, changing the overall catalytic oxidation thickness and area of the two to ensure the treatment effect of the exhaust gas.

[0041] In this embodiment, clamping holes 9 are formed in the opposite side walls of the treatment box 1 and above the air inlet holes 4. A support plate 10 inserted into the pretreatment chamber 2 is arranged in the clamping holes 9. A packing shell 11 is arranged on the outer wall of the packing layer 5. A grid plate 12 is arranged at the bottom of the packing layer 5, and the grid plate 12 is lapped on the top of the support plate 10.

[0042] It should be noted that by arranging the inserted support plate 10 on the treatment box 1, the bottom of the grid plate 12 can be supported. Thus, after the support plate 10 is pulled out from the clamping holes 9, the grid plate 12 can be lowered onto the bottom plate 13, and the packing shell 11 can be taken out from the outlet 15 through the outlet 15, so that the internal packing layer 5 can be replaced after being saturated, which is simple and convenient.

[0043] In this embodiment, a bottom plate 13 is arranged at the bottom of the treatment box 1. A buffer layer 14 is arranged on the top of the bottom plate 13. An outlet 15 is arranged on the bottom plate 13 and the buffer layer 14. A plug plate 16 is arranged on the treatment box 1. The plug plate 16 is formed on the side plate opposite to the air inlet holes 4 and below the packing layer 5.

[0044] It should be noted that by arranging the buffer layer 14 on the bottom plate 13, the grid plate 12 can be protected when it descends, avoiding damage to the grid plate 12. The arranged plug plate 16 can take out the packing layer 5 from the inside of the treatment box 1 after being opened.

[0045] In this embodiment, the spraying assembly includes a swing plate 17, a spray head 18, a delivery pipe 19, and a box body 20. A water pump is installed inside the box body 20 on the outer wall of the treatment box 1. Swing shafts 21 are arranged on the left and right side walls of the swing plate 17, and the swing shafts 21 are rotatably connected to the treatment box 1. The spray heads 18 are symmetrically distributed at intervals at the bottom of the swing plate 17. One end of the delivery pipe 19 is connected to the box body 20, and the other end is connected to the spray head 18. A swing assembly for shaking the swing plate 17 left and right is arranged on the swing plate 17.

[0046] It should be noted that the swing plate 17 is rotatably connected inside the processing box 1 through a swing shaft 21. An alkaline liquid is stored in the water tank. After being sprayed downward through the spray head 18 onto the packing layer 5, when the gas rises from below the packing layer 5, it contacts the waste gas in a countercurrent manner. The acidic gas in the waste gas reacts with the alkaline liquid to generate salt and water, pre-treating the acidic gas in the waste gas, removing the acidic gas, protecting the subsequent catalyst, and the alkaline liquid and the generated water can be discharged through the outlet 15.

[0047] In this embodiment, the swing assembly includes a crank 22, a rocker 23 and a first motor 24. The crank 22 is rotatably connected to a side wall of the swing plate 17 perpendicular to the swing shaft 21. One end of the rocker 23 is movably connected to the crank 22. The crank 22 is connected by two parallel straight rods and a vertical rod. The two straight rods are staggered and parallel, and the straight rods and the vertical rod are perpendicular to each other. The first motor 24 is externally connected to a power supply and installed on the outer wall of the processing box 1. The output shaft of the first motor 24 is connected to the other straight rod of the crank 22.

[0048] It should be noted that through the arranged crank 22 and rocker 23, the crank 22 is connected by two parallel straight rods and a vertical rod. The two straight rods are staggered and parallel, and the straight rods and the vertical rod are perpendicular to each other. When the first motor 24 rotates, it will drive the rocker 23 to perform a circular motion around the output shaft of the first motor 24. Thus, through the connection of the crank 22, the swing plate 17 realizes a reciprocating motion around the swing shaft 21. During the reciprocating swing of the swing plate 17, the alkaline liquid on the spray head 18 comes down from above, improving the uniformity of the alkaline liquid falling onto the packing layer 5 and enhancing the pre-treatment effect on the acidic gas in the waste gas.

[0049] In this embodiment, the electric heater 6 is installed at the junction of the pretreatment chamber 2 and the oxidation chamber 3. A fan 25 externally connected to a power supply is provided on the inner wall of the processing box 1 opposite to the electric heater 6. The fan 25 blows the waste gas in the pretreatment chamber 2 onto the electric heater 6.

[0050] It should be noted that there is an electric heating tube inside the arranged electric heater 6. When an electric current passes through the heating element, due to the resistance effect, electrical energy is converted into heat energy. The heating element transfers the heat to the surrounding waste gas, raising its temperature. The electric heater 6 is connected to the control system, and the current magnitude can be adjusted through the PLC system according to the concentration of the waste gas to control the heating power and maintain the set temperature.

[0051] In this embodiment, a catalytic housing 26 is provided outside the first catalytic bed 7 and the second catalytic bed 8. Rotating shafts 27 are provided on the left and right sides of the catalytic housing 26 outside the first catalytic bed 7 near the bottom. The rotating shafts 27 are movably connected to the processing box 1. Limiting frame plates 28 are symmetrically provided outside the two catalytic housings 26 and are distributed vertically. One limiting frame plate 28 is fixedly connected to one catalytic housing 26 and is in movable contact with the other catalytic housing 26. Rubber strips 29 are provided at the top of the first catalytic bed 7 and the bottom of the second catalytic bed 8.

[0052] It should be noted that the first catalytic bed 7 and the second catalytic bed 8 are filled with a catalyst. The catalyst is a noble metal Pt, Pd or a transition metal oxide. The catalytic housing 26 can fix the first catalytic bed 7 and the second catalytic bed 8. Limiting frame plates 28 are provided outside the catalytic housing 26. One limiting frame plate 28 is fixedly connected to one catalytic housing 26 and is in movable contact with the other catalytic housing 26. Thus, after relative displacement of the two catalytic housings 26, the first catalytic bed 7 and the second catalytic bed 8 can still be kept in movable contact through the provided limiting frame plates 28. The designed rubber strips 29 can reduce the gas leakage.

[0053] In this embodiment, a sliding hole 30 is provided on the top plate of the processing box 1. The sliding hole 30 is opened above the first catalytic bed 7 and extends along the outlet direction of the oxidation chamber 3. The power displacement assembly includes a sliding block 31, a lead screw 32, a ball nut 33 and a second motor 34. The bottom of the sliding block 31 is rotatably connected to the top of the second catalytic bed 8, and the sliding block 31 extends out from the upper sliding hole 30. The lead screw 32 is installed directly above the sliding hole 30. The ball nut 33 is installed in the sliding block 31 and cooperates with the lead screw 32. A foam layer 35 is provided in the sliding hole 30. A flow guide plate 36 is provided near the outlet 15 of the oxidation chamber 3.

[0054] It should be noted that through the provided power displacement assembly, the second catalytic bed 8 can be displaced, and at the same time, the first catalytic bed 7 can be rotated. After the first catalytic bed 7 and the second catalytic bed 8 overlap each other, the overall catalytic oxidation degree can be increased. When the first catalytic bed 7 and the second catalytic bed 8 are separated from each other, the overlapping area decreases, but the overall catalytic oxidation area increases. By detecting different exhaust gas concentrations by the system and adjusting different catalytic oxidation methods, real-time adjustment is carried out, the efficiency is improved, and the treatment effect on the exhaust gas is improved.

[0055] For the usage method of the above embodiments, when it is necessary to treat waste gas, first introduce the waste gas into the pretreatment chamber 2 through the air inlet hole 4. Start the water pump in the box body 20, and spray the alkaline liquid from the spray head 18 through the delivery pipe 19 onto the packing layer 5 below. Start the first motor 24, and the first motor 24 will drive the rocker 23 to rotate. One end of the rocker 23 is movably connected to one end of the crank 22, and the other end of the crank 22 is movably connected to the swing plate 17. Therefore, during the rotation of the rocker 23, it will drive the swing plate 17 to swing left and right through the crank 22, causing the spray head 18 to swing left and right, so that the alkaline liquid can fall more evenly onto the packing layer 5, contact the waste gas countercurrently, and the acidic gas in the waste gas reacts with the alkaline liquid to generate salt and water, pre-treating the acidic gas in the waste gas, removing the acidic gas, protecting the subsequent catalyst, and the alkaline liquid and the generated water can be discharged through the outlet 15.

[0056] When the waste gas is treated, it comes out from the top of the pretreatment chamber 2 and enters the oxidation chamber 3. Start the electric heater 6. There is an electric heating tube inside the set electric heater 6. When an electric current passes through the heating element, due to the resistance effect, electrical energy is converted into heat energy, and the heating element transfers the heat to the surrounding waste gas, raising its temperature, thereby heating the waste gas. The electric heater 6 is connected to the control system, and the current magnitude can be adjusted through the PLC system according to the concentration of the waste gas to control the heating power and maintain the set temperature;

[0057] The heated waste gas flowing in the oxidation chamber 3 will contact the first catalyst bed 7 and the second catalyst bed 8. The first catalyst bed 7 and the second catalyst bed 8 are filled with catalysts. The catalysts are noble metals Pt, Pd or transition metal oxides. Pollutant molecules (such as VOCs) are adsorbed and activated on the surface of the catalyst. Initially, the first catalyst bed 7 and the second catalyst bed 8 are in a vertical state, and their overlapping area is the largest, and the waste gas can be subjected to double-layer catalytic oxidation, thereby improving the treatment effect on the waste gas;

[0058] When the system detects that the concentration of the waste gas decreases, start the second motor 34. The second motor 34 drives the lead screw 32 to rotate. The ball nut 33 engaged with the lead screw 32 moves on the lead screw to drive the sliding block 31 to move forward in the sliding hole 30. The bottom of the sliding block 31 is movably connected to the second catalyst bed 8. The bottom of the first catalyst bed 7 is rotationally connected to the processing box 1 through the rotating shaft 27. The second catalyst bed 8 is in movable contact with the first catalyst bed 7, so that the first catalyst bed 7 will rotate around the rotating shaft 27, and at the same time the second catalyst bed 8 slides on the first catalyst bed 7. Although the overlapping area of the first catalyst bed 7 and the second catalyst bed 8 decreases, the overall catalytic oxidation area is increased, and the treatment area of the waste gas is increased. The treated gas is discharged to the outside through the guide plate 36, and the system can adjust the catalytic oxidation method in real time according to the detected waste gas concentration, improving the treatment effect on the waste gas.

[0059] The operation process of the control system is as follows:

[0060] Data acquisition: The sensor group collects data such as waste gas composition, temperature, humidity, and flow rate in real time.

[0061] Status evaluation: The edge computing controller analyzes the data and evaluates the current processing effect and equipment status.

[0062] Decision generation: According to the evaluation results, the control algorithm and prediction model are called to generate regulation instructions.

[0063] Instruction execution: The actuator adjusts the operation parameters of the device according to the instructions.

[0064] Feedback optimization: According to the processed waste gas data, the control parameters are optimized and the prediction model is updated.

[0065] The embodiments of the present invention are given for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A waste gas treatment and emission reduction device, characterized in that: include: A treatment box (1), wherein a vertical pretreatment chamber (2) is provided inside the treatment box (1), a horizontal oxidation chamber (3) is provided on the top of the pretreatment chamber (2), an air inlet (4) is provided on the side wall of the treatment box (1) close to the bottom wall, a packing layer (5) is provided inside the pretreatment chamber (2), and a spray assembly is provided above the packing layer (5); It also includes an electric heater (6) with an external power supply installed in the oxidation chamber (3); a catalyst bed 1 (7) and a catalyst bed 2 (8) are provided on the side of the electric heater (6) away from the pretreatment chamber (2); the catalyst bed 1 (7) and the catalyst bed 2 (8) are movably fitted together; the bottom of the catalyst bed 1 (7) is movably connected to the treatment box (1); the top wall of the treatment box (1) is provided with a power displacement component, and the power displacement component is connected to the catalyst bed 2 (8).

2. The exhaust gas treatment and emission reduction device according to claim 1, characterized in that: A clamping hole (9) is provided on the opposite side wall of the treatment box (1) and above the air inlet (4); a support plate (10) inserted into the pretreatment chamber (2) is provided in the clamping hole (9); a packing shell (11) is provided on the outer wall of the packing layer (5); a grid plate (12) is provided at the bottom of the packing layer (5); and the grid plate (12) is overlapped on the top of the support plate (10).

3. The exhaust gas treatment and emission reduction device according to claim 2, characterized in that: The bottom of the processing box (1) is provided with a bottom plate (13), the top of the bottom plate (13) is provided with a buffer layer (14), the bottom plate (13) and the buffer layer (14) are provided with outlets (15), and the processing box (1) is provided with a plug plate (16), and the plug plate (16) is opened on the side plate opposite to the air inlet (4) and below the packing layer (5).

4. The exhaust gas treatment and emission reduction device according to claim 1, characterized in that: The spray assembly comprises a swing plate (17), a spray head (18), a delivery pipe (19) and a box (20); the box (20) has a built-in water pump installed on the outer wall of the processing box (1); the left and right side walls of the swing plate (17) are provided with swing shafts (21); the swing shafts (21) are rotatably connected to the processing box (1); the spray heads (18) are symmetrically distributed at intervals at the bottom of the swing plate (17); one end of the delivery pipe (19) is connected to the box (20) and the other end is connected to the spray head (18); and the swing plate (17) is provided with a swing assembly for swinging it left and right.

5. The exhaust gas treatment and emission reduction device according to claim 1, characterized in that: The swing assembly comprises a crank (22), a rocker (23) and a motor (24); the crank (22) is rotatably connected to a side wall of the swing plate (17) which is perpendicular to the swing shaft (21); one end of the rocker (23) is movably connected to the crank (22); the crank (22) is connected by two parallel straight rods and a vertical rod; the two straight rods are staggered and parallel, and the straight rod and the vertical rod are perpendicular to each other; an external power supply of the motor (24) is installed on the outer wall of the processing box (1); and an output shaft of the motor (24) is connected to another straight rod of the crank (22).

6. The exhaust gas treatment and emission reduction device according to claim 1, characterized in that: The electric heater (6) is installed at the junction of the pretreatment chamber (2) and the oxidation chamber (3). A fan (25) with an external power supply is provided on the inner wall of the treatment box (1) directly facing the electric heater (6). The fan (25) blows the exhaust gas in the pretreatment chamber (2) to the electric heater (6).

7. The exhaust gas treatment and emission reduction device according to claim 1, characterized in that: The catalyst bed 1 (7) and the catalyst bed 2 (8) are provided with a catalytic shell (26) on the outside. The catalyst shell (26) outside the catalyst bed 1 (7) is provided with a rotating shaft (27) on the left and right sides near the bottom. The rotating shaft (27) is movably connected in the treatment box (1). The two catalyst shells (26) are symmetrically provided with upper and lower limit frame plates (28) on the outside. One limit frame plate (28) is fixedly connected to one catalyst shell (26) and movably fits with the other catalyst shell (26). The top of the catalyst bed 1 (7) and the bottom of the catalyst bed 2 (8) are provided with rubber strips (29).

8. The exhaust gas treatment and emission reduction device according to claim 7, characterized in that: A sliding hole (30) is provided on the top plate of the treatment box (1), and the sliding hole (30) is opened above the catalyst bed (7) and extends along the outlet direction of the oxidation chamber (3). The power displacement component includes a sliding block (31), a screw rod (32), a ball nut (33) and a motor (34). The bottom of the sliding block (31) is rotatably connected to the top of the catalyst bed (8), and the sliding block (31) extends from the sliding hole (30) above. The screw rod (32) is installed just above the sliding hole (30). The ball nut (33) is installed in the sliding block (31) and cooperates with the screw rod (32). A foam layer (35) is provided in the sliding hole (30), and a guide plate (36) is provided near the outlet (15) of the oxidation chamber (3).

9. An intelligent control system for a waste gas treatment and emission reduction device using any one of claims 1 to 8, characterized in that: The device comprises a sensor group, an edge computing controller and an actuator, wherein the sensor group comprises a gas composition sensor for detecting the concentration of pollutants in the exhaust gas, a temperature and humidity sensor for monitoring the temperature and humidity of the exhaust gas, and a flow meter for measuring the exhaust gas flow rate in real time, and the sensor group is deployed at the air inlet of the device, the outlets of each level of processing units (15) and inside key equipment; The edge computing controller includes data processing, control algorithms, and prediction models; Data processing receives sensor data in real time, fuses multi-source data, and generates comprehensive status information of the exhaust gas treatment process; The control algorithm includes adaptive PID control and multi-objective optimization algorithm. The adaptive PID control can adjust the temperature of the catalytic oxidation reactor, the power frequency of the plasma module and other parameters. The PID parameters can be dynamically adjusted according to the exhaust gas composition and flow rate. The multi-objective optimization algorithm can find the optimal balance between pollutant removal rate, energy consumption and equipment life; The prediction model includes LSTM neural network and pollutant concentration prediction model. LSTM neural network is used to predict the saturation time of the adsorption tower and trigger the regeneration program in advance. The pollutant concentration prediction model predicts the changes in exhaust gas composition in the future based on historical data and real-time input, and adjusts the treatment parameters in advance. The actuator adjusts the operating state of the device according to the instructions of the controller, including the catalytic oxidation reactor and the spray tower. The electric heater (6) in the oxidation chamber (3) dynamically adjusts the temperature of the catalyst layer according to the VOC concentration and the exhaust gas flow rate; the chemical reactor can be adaptively adjusted according to the exhaust gas concentration; The spray tower triggers the start of the spray device according to the prediction model to pre-treat the exhaust gas.

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