A waste gas catalytic decomposition device for atmospheric treatment

Abstract

The utility model discloses a kind of waste gas catalytic decomposition devices for air treatment, belong to air treatment technical field, including catalytic shell, catalytic decomposition mechanism is provided on the catalytic shell, the bottom of the inner chamber of catalytic shell is fixedly connected with gas distribution box, the side of catalytic shell is fixedly installed with air blower, the output end of air blower is fixedly sleeved to the inner chamber of gas distribution box, the top of gas distribution box is fixedly sleeved with multiple spray heads, the top surface of multiple spray heads is evenly provided with multiple spray holes, the inner chamber of gas distribution box is fixedly installed with multiple electric heating tubes, the top of catalytic shell is fixedly sleeved with exhaust pipe.In the utility model, waste gas is introduced into the inner chamber of gas distribution box by air blower, evenly distributed in the inner chamber of catalytic shell by multiple spray heads on the upper portion of gas distribution box, ensure the quality of subsequent waste gas decomposition, and waste gas is heated by electric heating tube in the inner chamber of gas distribution box, and waste gas can be heated and decomposed.

Description

Technical Field

[0001] This utility model relates to the field of air pollution control technology, and more specifically, to a waste gas catalytic decomposition device for air pollution control. Background Technology

[0002] In recent years, with increased environmental awareness and stronger policy support, air pollution control has gradually become an important area of ​​focus for the capital market. Air pollution control refers to the process of reducing air pollutant emissions and improving air quality through technological means, management measures, and policy guidance. The main targets of control include industrial waste gas, vehicle exhaust, dust, and volatile organic compounds (VOCs), which are harmful to the environment and human health.

[0003] A search revealed a utility model patent with publication number CN221999457U, which discloses a catalytic decomposition device for organic waste gas, applicable to the field of waste gas purification technology. The solution provided is to offer a catalytic decomposition device for organic waste gas, employing a scheme comprising: a catalytic shell, a protective door, a heating plate, a first pipe, and a second pipe. The protective door is rotatably connected to the inner wall of the catalytic shell, and three heating plates are symmetrically fixedly connected to the inner wall of the catalytic shell. The first pipe is fixedly connected to the top of the catalytic shell, and the second pipe is fixedly connected to the left side of the catalytic shell. By installing the catalytic shell, protective door, heating plate, first pipe, and second pipe, the catalyst can be evenly distributed, ensuring sufficient contact between the organic waste gas and the catalyst, thus improving the catalytic decomposition rate of the organic waste gas. However, the aforementioned patent still has the following shortcomings: the waste gas introduced into the inner cavity of the catalytic shell through the second pipe is not easily evenly distributed, affecting the quality of the catalytic decomposition of the waste gas; furthermore, the rotating roller can only compact the catalyst, not disperse it, affecting the contact between the waste gas and the catalyst. Therefore, we propose a catalytic decomposition device for waste gas in air pollution control. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a waste gas catalytic decomposition device for air pollution control.

[0005] To solve the above problems, the present invention adopts the following technical solution: a catalytic decomposition device for air pollution control, comprising a catalytic shell, a catalytic decomposition mechanism disposed on the catalytic shell, a gas distribution box fixedly connected to the bottom of the inner cavity of the catalytic shell, a blower fixedly installed on the side of the catalytic shell, the output end of the blower fixedly sleeved to the inner cavity of the gas distribution box, multiple nozzles fixedly sleeved on the top of the gas distribution box, each nozzle having multiple spray holes on its top surface, multiple electric heating tubes fixedly installed in the inner cavity of the gas distribution box, and an exhaust pipe fixedly sleeved on the top of the catalytic shell.

[0006] As a preferred embodiment of this utility model, the catalytic decomposition mechanism includes two support seats fixedly connected to the inner wall of the catalytic shell, a rotating rod rotatably connected to the inner cavity of the catalytic shell via bearings, and a servo motor fixedly installed on the outer side of the catalytic shell. The output shaft of the servo motor is connected to one end of the rotating rod via a coupling. Multiple springs are fixedly connected to the top surface of the support seats, and two mounting seats are fixedly connected to the top of the multiple springs. A catalytic frame is sleeved on the top of the two mounting seats, and two perforated plates are fixedly sleeved on the catalytic frame. Multiple sliding rods are fixedly connected to the bottom surface of the two mounting seats respectively. The bottom ends of the multiple sliding rods are movably sleeved to the bottom of the support seats and fixedly connected to two push plates. Two cams are fixedly sleeved on the outer side of the rotating rod, and the top surface of the cams is in contact with the bottom surface of the push plates.

[0007] As a preferred embodiment of this utility model, the top surface of the mounting base is provided with a sliding groove, and the bottom surface of the catalyst frame is fixedly connected with a slider, which is movably sleeved into the inner cavity of the sliding groove.

[0008] As a preferred embodiment of this utility model, a control panel is fixedly installed on the outer side of the catalyst shell, and the control panel is electrically connected to the blower, the heating element and the servo motor through wires.

[0009] As a preferred embodiment of this utility model, the front of the catalyst shell is hinged with a sealing door, and the sides of the catalyst frame are respectively attached to the inner sides of the catalyst shell and the sealing door.

[0010] In a preferred embodiment of this utility model, the inner wall of the groove is in contact with the side of the slider.

[0011] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, the blower is used to introduce the waste gas into the inner cavity of the gas distribution box, and the multiple nozzles on the upper part of the gas distribution box are used to evenly distribute the waste gas in the inner cavity of the catalyst shell to ensure the quality of subsequent waste gas decomposition. At the same time, the electric heating tube in the inner cavity of the gas distribution box is used to heat the waste gas, which can heat and decompose the waste gas.

[0012] (2) In this utility model, a catalyst is placed on the mesh plate to catalyze the waste gas, thereby decomposing the waste gas. At the same time, a servo motor drives the rotating rod and cam to rotate, and the cam drives the push plate, mounting base, catalyst frame and mesh plate to move up and down, so that the catalyst on the mesh plate can fully contact the waste gas, ensuring the quality of catalytic decomposition of the waste gas. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 is a schematic diagram of the internal structure of this utility model.

[0015] Figure 3 is a schematic diagram of the structure of the catalyst shell of this utility model.

[0016] Figure 4 is a cross-sectional schematic diagram of the gas distribution box of this utility model.

[0017] Figure 5 is a schematic diagram of the structure of the catalyst frame of this utility model.

[0018] Figure 6 is a schematic diagram of the structure of the nozzle of this utility model.

[0019] The following are the labels in the diagram: 1. Catalytic shell; 2. Catalytic decomposition mechanism; 3. Blower; 4. Gas distribution box; 5. Nozzle; 6. Spray hole; 7. Heating element; 8. Exhaust pipe; 9. Sealing door; 10. Rotating rod; 11. Support base; 12. Servo motor; 13. Spring; 14. Mounting base; 15. Slide rod; 16. Push plate; 17. Cam; 18. Catalytic frame; 19. Mesh plate; 20. Slide groove; 21. Slider; 22. Control panel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0023] As shown in Figures 1 to 6, a catalytic decomposition device for air pollution control includes a catalytic shell 1, a catalytic decomposition mechanism 2 on the catalytic shell 1, a gas distribution box 4 fixedly connected to the bottom of the inner cavity of the catalytic shell 1, a blower 3 fixedly installed on the side of the catalytic shell 1, the input end of the blower 3 being connected to the exhaust outlet through a pipe, the output end of the blower 3 being fixedly sleeved to the inner cavity of the gas distribution box 4, a plurality of nozzles 5 fixedly sleeved on the top of the gas distribution box 4, a plurality of spray holes 6 being provided on the top surface of the plurality of nozzles 5, a plurality of electric heating tubes 7 fixedly installed in the inner cavity of the gas distribution box 4, and an exhaust pipe 8 fixedly sleeved on the top of the catalytic shell 1. Example 2

[0024] Based on Embodiment 1, as shown in Figures 1 to 5, the catalytic decomposition mechanism 2 includes two support seats 11 fixedly connected to the inner wall of the catalyst shell 1, a rotating rod 10 rotatably connected to the inner cavity of the catalyst shell 1 via bearings, and a servo motor 12 fixedly installed on the outer side of the catalyst shell 1. The output shaft of the servo motor 12 is connected to one end of the rotating rod 10 via a coupling. Multiple springs 13 are fixedly connected to the top surface of the support seats 11, and two mounting seats 14 are fixedly connected to the top of the multiple springs 13. A catalyst frame 18 is sleeved on the top of the two mounting seats 14, and two perforated plates 19 are fixedly sleeved on the catalyst frame 18. Multiple sliding rods 15 are fixedly connected to the bottom surface of the two mounting seats 14, and the bottom ends of the multiple sliding rods 15 are movably sleeved to the bottom of the support seats 11 and fixedly connected to two push plates 16. Two cams 17 are fixedly sleeved on the outer side of the rotating rod 10, and the top surface of the cams 17 is in contact with the bottom surface of the push plates 16. The top surface of the catalyst frame 18 is provided with a sliding groove 20, and the bottom surface of the catalyst frame 18 is fixedly connected with a slider 21. The slider 21 is movably sleeved into the inner cavity of the sliding groove 20. The front of the catalyst shell 1 is hinged with a sealing door 9. A sealing strip is provided between the sealing door 9 and the catalyst shell 1 to ensure the sealing of the inner cavity of the catalyst shell 1. The sides of the catalyst frame 18 are respectively attached to the inner sides of the catalyst shell 1 and the sealing door 9 to ensure the stability of the catalyst frame 18 moving up and down in the inner cavity of the catalyst shell 1. The inner wall of the sliding groove 20 is attached to the side of the slider 21 to ensure the stability of the slider 21 being inserted into the inner cavity of the sliding groove 20. Example 3

[0025] Based on Embodiment 1 and Embodiment 2, as shown in Figures 1 to 3, a control panel 22 is fixedly installed on the outside of the catalyst shell 1. The control panel 22 is electrically connected to the blower 3, the heating element 7, and the servo motor 12 through wires. The control panel 22 controls the blower 3, the heating element 7, and the servo motor 12. In addition, the external power supply provides power to the control panel 22, the blower 3, the heating element 7, and the servo motor 12 through wires.

[0026] It should be noted that this utility model is a catalytic decomposition device for air pollution control. In use, the catalyst is first placed in the perforated plate 19 on the catalytic frame 18. The servo motor 12 is started, driving the rotating rod 10 and cam 17 to rotate. The cam 17 pushes the push plate 16 up and down, which in turn moves the sliding rod 15, mounting base 14, catalytic frame 18, and perforated plate 19 up and down, causing the catalyst in the perforated plate 19 to vibrate. Then, the blower 3 is started to draw external waste gas into the inner cavity of the gas distribution box 4. Electricity is applied to the heating tube 7 inside the gas distribution box 4 to generate heat, heating the waste gas. This heating brings the combustible components in the waste gas to combustion temperature, decomposing them into harmless substances. Simultaneously, the heated waste gas enters the inner cavity of the catalytic shell 1 through the nozzle 5 and nozzle 6. Then, the waste gas moves upwards into the inner cavity of the catalytic shell 1, causing the waste gas to interact with the perforated plate 19. The catalyst in the middle comes into contact with the gas, and the catalyst is used to further catalyze and decompose the exhaust gas. Finally, the decomposed exhaust gas is discharged from the exhaust pipe 8.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A catalytic decomposition device for air pollution control, comprising a catalytic shell (1), characterized in that: The catalyst shell (1) is provided with a catalytic decomposition mechanism (2). A gas distribution box (4) is fixedly connected to the bottom of the inner cavity of the catalyst shell (1). A blower (3) is fixedly installed on the side of the catalyst shell (1). The output end of the blower (3) is fixedly sleeved to the inner cavity of the gas distribution box (4). Multiple nozzles (5) are fixedly sleeved on the top of the gas distribution box (4). Multiple nozzles (5) are provided with multiple spray holes (6) on their top surfaces. Multiple electric heating tubes (7) are fixedly installed in the inner cavity of the gas distribution box (4). An exhaust pipe (8) is fixedly sleeved on the top of the catalyst shell (1).

2. The catalytic decomposition device for air pollution control according to claim 1, characterized in that: The catalytic decomposition mechanism (2) includes two support seats (11) fixedly connected to the inner wall of the catalytic shell (1), a rotating rod (10) rotatably connected to the inner cavity of the catalytic shell (1) via bearings, and a servo motor (12) fixedly installed on the outer side of the catalytic shell (1). The output shaft of the servo motor (12) is connected to one end of the rotating rod (10) via a coupling. Multiple springs (13) are fixedly connected to the top surface of the support seats (11), and two mounting seats (14) are fixedly connected to the top ends of the multiple springs (13). Catalytic frames (18) are fitted on the top of the two mounting bases (14). Two mesh plates (19) are fixedly fitted on the catalytic frames (18). Multiple sliding rods (15) are fixedly connected to the bottom surfaces of the two mounting bases (14). The bottom ends of the multiple sliding rods (15) are movably fitted to the bottom of the support base (11) and fixedly connected to two push plates (16). Two cams (17) are fixedly fitted to the outer side of the rotating rod (10). The top surface of the cams (17) is in contact with the bottom surface of the push plates (16).

3. The catalytic decomposition device for air pollution control according to claim 2, characterized in that: The top surface of the mounting base (14) is provided with a sliding groove (20), and the bottom surface of the catalyst frame (18) is fixedly connected with a slider (21), which is movably sleeved into the inner cavity of the sliding groove (20).

4. The catalytic decomposition device for air pollution control according to claim 2, characterized in that: A control panel (22) is fixedly installed on the outside of the catalyst shell (1). The control panel (22) is electrically connected to the blower (3), the heating element (7), and the servo motor (12) through wires.

5. The catalytic decomposition device for air pollution control according to claim 2, characterized in that: The front of the catalyst shell (1) is hinged with a sealing door (9), and the side of the catalyst frame (18) is respectively attached to the inner side of the catalyst shell (1) and the sealing door (9).

6. The catalytic decomposition device for air pollution control according to claim 3, characterized in that: The inner wall of the groove (20) is in contact with the side of the slider (21).

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