A filtering device for intake air pretreatment and a paint mist catalytic combustion furnace

Abstract

The present invention relates to the field of filtration technology, and specifically to a filtration device for intake air pretreatment and a paint mist catalytic combustion furnace, including: a partition plate disposed inside the filtration device for intake air pretreatment, on which a filter screen is detachably installed; an air supply hood and an electrostatic adsorption device, respectively disposed on both sides of the filter screen; a gas pumping assembly communicated with the air supply hood, the gas pumping assembly includes two sets of gas pumping structures, and one end of the gas pumping structure is elastically provided with an abutting member; a first driving assembly connected to the air supply hood, the driving assembly cooperates with the abutting member and can alternately drive the two sets of gas pumping structures to act; a second driving assembly connected to the electrostatic adsorption device, and a second convex shaft is formed on the second driving assembly; a side plate connected to the inner wall of the filtration device for intake air pretreatment, and a guiding groove provided on the side plate cooperates with the second convex shaft, and can cause the electrostatic adsorption device to perform a vibration action once when the electrostatic adsorption device moves to the end of the stroke, so as to improve the filtration effect.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration, and specifically to a filtration device for intake air pretreatment and a paint mist catalytic combustion furnace. Background Art

[0002] In the workshop of spray painting operations, waste gas will be generated. These waste gases mainly contain volatile organic compounds, particulate matter and a small amount of harmful gases. If these waste gases are directly discharged without proper treatment, it will pose a serious threat to the environment and human health. To address the above problems, existing spray painting workshops are generally equipped with paint mist catalytic combustion furnaces, which achieve pollution-free emission by burning harmful gases.

[0003] The paint mist catalytic combustion furnace mainly includes a filtration device, a combustion device and an exhaust device. Among them, the filtration device is mainly used to filter dust particles in the waste gas. Specifically, a filter screen is provided in the filtration device, and the filter screen is used to filter dust particles.

[0004] However, it is found in actual use that as the filtration progresses, dust particles will adhere to the filter screen, resulting in a decline in the filtration effect and an increase in the resistance when air flows through the filter screen. If it is disassembled and cleaned, the paint mist catalytic combustion furnace needs to be shut down, affecting the utilization rate of the paint mist catalytic combustion furnace. Summary of the Invention

[0005] The purpose of the present invention is to provide a filtration device for intake air pretreatment and a paint mist catalytic combustion furnace to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A filtration device for intake air pretreatment, comprising:

[0008] A partition plate, arranged inside the filtration device for intake air pretreatment, and a filter screen is detachably installed on the partition plate;

[0009] An air supply hood and an electrostatic adsorption device, respectively arranged on both sides of the filter screen;

[0010] A pump air component, communicated with the air supply hood, the pump air component includes two groups of pump air structures, and an abutting member is elastically arranged at one end of the pump air structure;

[0011] A first driving component, connected to the air supply hood, and the driving component cooperates with the abutting member to alternately drive the two groups of pump air structures to act;

[0012] A second driving component, connected to the electrostatic adsorption device, and a second convex shaft is formed on the second driving component;

[0013] The side plate is connected to the inner wall of the air intake pre-treatment filtering device. The guiding groove provided on the side plate cooperates with the second convex shaft, and can enable the electrostatic adsorption device to perform a vibration action when the electrostatic adsorption device moves to the end of the stroke.

[0014] As a further solution of the present invention: The air pumping structure includes a pump cylinder body fixedly connected to the air supply cover. Two one-way valves are provided on the pump cylinder body, and a sealing plug is hermetically and slidably installed in the pump cylinder body. A connecting shaft passing through the pump cylinder body is connected to the sealing plug;

[0015] A first spring is sleeved on the connecting shaft. One end of the first spring is connected to the sealing plug, and the other end is connected to the inner wall of the pump cylinder body.

[0016] As a further solution of the present invention: The end of the connecting shaft away from the sealing plug is slidably connected to the abutting member, and the abutting member and the connecting shaft are connected by a second spring;

[0017] A first inclined surface is provided at one end of the abutting member away from the second spring.

[0018] As a further solution of the present invention: The first driving component includes a bracket fixedly connected to the air supply cover. An electric telescopic rod is fixedly installed on the bracket. A sliding connecting member is connected to the action end of the electric telescopic rod, and the sliding connecting member is slidably connected to the guiding groove provided on the bracket;

[0019] A cross-moving rod is connected to the sliding connecting member, and abutting wheels are rotatably installed at both ends of the cross-moving rod;

[0020] The first driving component further includes a triggering structure connecting the abutting member. The triggering structure can separate the abutting member from the abutting wheel after the abutting wheel drives the abutting member to move to a predetermined position.

[0021] As a further solution of the present invention: The triggering structure includes a first convex shaft rotatably installed on the abutting member and a triggering member connected to the air supply cover. The first convex shaft cooperates with the triggering member and can enable the abutting member to move away from the abutting wheel.

[0022] As a further solution of the present invention: A second inclined surface is provided on one side of the triggering member facing the first convex shaft. When the first convex shaft abuts against the second inclined surface, the abutting member can slide relative to the connecting shaft and separate from the abutting wheel.

[0023] As a further solution of the present invention: The second driving assembly includes a first linear driving module and a second linear driving module disposed on both sides of the filter screen, and the first linear driving module is connected to the air supply hood;

[0024] The second linear driving module is connected to the electrostatic adsorption device through an elastic structure.

[0025] As a further solution of the present invention: The elastic structure includes a connecting plate fixedly connected to the electrostatic adsorption device. A sliding groove is provided along the length direction of the connecting plate. A follower block fixedly connected to the second linear driving module is slidably installed in the sliding groove. A third spring is connected between the follower block and the inner wall of the sliding groove;

[0026] The second convex shaft is rotatably connected to the connecting plate.

[0027] As a further solution of the present invention: The guiding groove includes a first vertical groove provided on the side plate. One end of the first vertical groove is provided with a second vertical groove. One end of the second vertical groove away from the first vertical groove is provided with a horizontal groove. One end of the horizontal groove away from the second vertical groove is connected to a third vertical groove. The third vertical groove is connected to the second vertical groove through an inclined groove;

[0028] A deflection member is rotatably installed at the connection between the inclined groove and the second vertical groove. A torsion spring is provided on the rotating shaft of the deflection member.

[0029] A paint mist catalytic combustion furnace includes the above-mentioned filtering device for intake air pretreatment, and further includes a combustion device and an exhaust device.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] By providing the air pumping assembly and the air supply hood, when the first driving assembly operates, the sealing plug can be driven to act. When the abutting member is separated from the first driving assembly, the second spring releases elastic potential energy, so that the air in the air supply hood is pressurized, and the compressed air reversely passes through the filter screen, thereby separating the dust particles adhered to the filter screen from the filter screen and being adsorbed by the electrostatic adsorption device, achieving the effect of removing the dust particles adhered to the filter screen, avoiding the filter screen being blocked by dust particles after long-term filtration, improving the filtering effect of the filter screen, and at the same time increasing the speed of the waste gas to be treated passing through the filter screen;

[0032] Through the provided first driving component, when the electric telescopic rod operates, it can alternately drive two groups of air pumping structures to act, so as to continuously transport compressed air into the air supply hood, ensuring that when the air supply hood moves along the length direction of the filter net, the air supply hood can always pump reverse air towards the filter net, so that the dust particles adhering to the filter net are separated from the filter net, and the dust particles adhering to one side of the filter net can be evenly processed;

[0033] Through the provided second driving component, electrostatic adsorption device and side plate, when the air supply hood and the electrostatic adsorption device move to the lower end of the stroke, it can drive the electrostatic adsorption device to perform a movement process of accelerating first and then instantaneously stopping and generate vibration under the cooperation of the third spring, the second convex shaft and the horizontal groove, and use the vibration force to shake off the dust adhering to the electrostatic adsorption device, so that the electrostatic adsorption device restores its adsorption performance, preventing the dust from re-adhering to the filter net after the dust particles are separated from the filter net when the air supply hood pumps reverse air due to the decline of the adsorption effect. Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of an embodiment of a paint mist catalytic combustion furnace.

[0035] Figure 2 It is a schematic structural diagram of an embodiment of a filtering device for intake air pretreatment.

[0036] Figure 3 It is a schematic internal structural diagram of an embodiment of a filtering device for intake air pretreatment.

[0037] Figure 4 It is a schematic internal structural diagram of another angle of an embodiment of a filtering device for intake air pretreatment.

[0038] Figure 5 It is a schematic structural diagram of an air supply hood, an air pumping assembly and a first driving component in an embodiment of a filtering device for intake air pretreatment.

[0039] Figure 6 It is a schematic structural diagram of an air pumping structure, a contact member and a triggering structure in an embodiment of a filtering device for intake air pretreatment.

[0040] Figure 7 It is a schematic structural diagram of a contact wheel, a contact member and a triggering member in an embodiment of a filtering device for intake air pretreatment.

[0041] Figure 8 It is a schematic structural diagram of a second driving component and a side plate in an embodiment of a filtering device for intake air pretreatment.

[0042] Figure 9 For Figure 8 The enlarged structural diagram at position A in

[0043] Figure 10 Schematic structural diagram of a side plate in an embodiment of a filtering device for intake air pre-treatment.

[0044] Figure 11 Schematic diagram of the connection state of a connecting shaft, a abutting member and a second spring in an embodiment of a filtering device for intake air pre-treatment.

[0045] Figure 12 Schematic diagram of the connection state of an air supply cover and a pumping assembly in an embodiment of a filtering device for intake air pre-treatment.

[0046] In the figure: 1. Filtering device for intake air pre-treatment; 101. Intake port; 102. Outlet port; 2. Combustion device; 3. Exhaust device; 4. Partition board; 5. Filter net; 6. First linear driving module; 7. Air supply cover; 8. Pump cylinder block; 9. Check valve; 10. Sealing plug; 11. Connecting shaft; 12. First spring; 13. Abutting member; 1301. Stopping portion; 1302. First inclined surface; 14. Second spring; 15. First convex shaft; 16. Triggering member; 1601. Second inclined surface; 17. Electric telescopic rod; 1701. Sliding connecting member; 18. Bracket; 1801. Guide groove; 19. Transverse moving rod; 20. Abutting wheel; 21. Second linear driving module; 22. Follow-up block; 23. Link plate; 2301. Chute; 24. Third spring; 25. Second convex shaft; 26. Side plate; 2601. First vertical groove; 2602. Second vertical groove; 2603. Horizontal groove; 2604. Third vertical groove; 2605. Inclined groove; 27. Deflection member; 28. Electrostatic adsorption device; 2801. Electrode needle. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] In addition, an element in the present invention is referred to as being "fixed to" or "disposed on" another element, and it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manners.

[0049] Please refer to Figures 1 to 10, in the embodiments of the present invention, a filtering device for intake air pretreatment includes: a partition plate 4, an air supply hood 7, an electrostatic adsorption device 28, a pump air component, a first driving component, a second driving component, and a side plate 26.

[0050] An air inlet 101 and an air outlet 102 are provided on the filtering device 1 for intake air pretreatment;

[0051] The partition plate 4 is arranged inside the filtering device 1 for intake air pretreatment, and a filter net 5 is detachably installed on the partition plate 4;

[0052] The air supply hood 7 and the electrostatic adsorption device 28 are respectively arranged on both sides of the filter net 5. Among them, a plurality of electrode needles 2801 are arranged on the side of the electrostatic adsorption device 28 facing the filter net 5. By arranging the plurality of electrode needles 2801, the effective adsorption area of the electrostatic adsorption device 28 can be increased, so that the electrostatic adsorption device 28 can adsorb more dust particles at a time, avoiding the decrease of the adsorption effect of the electrostatic adsorption device 28 due to the limited adsorption capacity of the electrostatic adsorption device 28 when the dust particles accumulate to a certain extent on the electrostatic adsorption device 28.

[0053] It should be noted that the waste gas to be treated enters the filtering device 1 for intake air pretreatment from the air inlet 101 and is discharged from the air outlet 102. During this process, the waste gas to be treated can pass through the filter net 5, so that the dust particles in the waste gas to be treated are filtered out. And the electrostatic adsorption device 28 is located on the side of the filter net 5 close to the air inlet 101, the air supply hood 7 is located on the side of the filter net 5 facing the air outlet 102, and the air supply hood 7 is in a state of being attached to the filter net 5.

[0054] The pump air component is communicated with the air supply hood 7. The pump air component includes two groups of pump air structures, and an abutting member 13 is elastically arranged at one end of the pump air structure;

[0055] The pump air structure includes a pump cylinder body 8 fixedly connected to the air supply hood 7. Two one-way valves 9 are arranged on the pump cylinder body 8, and a sealing plug 10 is hermetically and slidably installed in the pump cylinder body 8. A connecting shaft 11 passing through the pump cylinder body 8 is connected to the sealing plug 10. It should be noted that the conduction directions of the two one-way valves 9 mentioned above are opposite. The conduction direction of one group of one-way valves 9 is from the outside towards the inside of the pump cylinder body 8, and the conduction direction of the other group of one-way valves 9 is from the inside of the pump cylinder body 8 to the outside (air supply hood 7).

[0056] A first spring 12 is sleeved on the connecting shaft 11. One end of the first spring 12 is connected to the sealing plug 10, and the other end is connected to the inner wall of the pump cylinder body 8;

[0057] Please refer to Figure 6 and Figure 11, one end of the connecting shaft 11 away from the sealing plug 10 is slidably connected to the abutting member 13. The abutting member 13 and the connecting shaft 11 are connected by a second spring 14. A stop portion 1301 is provided on the abutting member 13. In the initial state, the stop portion 1301 is in a state of abutting against the connecting shaft 11, and at this time the second spring 14 is in a stretched state. Thus, in the initial state, the abutting member 13 can have better stability, ensuring that it can cooperate with the first driving assembly to achieve movement.

[0058] One end of the abutting member 13 away from the second spring 14 is provided with a first inclined surface 1302.

[0059] During use, when the first driving assembly moves, it can abut against one group of abutting members 13, driving the connected connecting shaft 11 to move. At this time, the connecting shaft 11 can drive the sealing plug 10 to move away from the one-way valve 9, sucking external air into the pump cylinder block 8 while compressing the second spring 14. When the abutting member 13 moves to the end of the stroke, it will separate from the first driving assembly. At this time, the second spring 14 can release elastic potential energy, compressing the air in the pump cylinder block 8 into the air supply cover 7, instantaneously increasing the pressure in the air supply cover 7. As a result, the air in the air supply cover 7 can move along the direction of the filter screen 5, enabling the dust particles adhering to the filter screen 5 to separate from the filter screen 5 and be adsorbed by the electrostatic adsorption device 28, effectively preventing the filter effect of the filter screen 5 from decreasing due to the accumulation of dust particles on the filter screen 5, improving the filter effect while enabling the waste gas to be treated to pass through the filter screen 5 faster.

[0060] Furthermore, due to the provision of two sets of air pumping structures, during the reciprocating movement of the first driving assembly, it can alternately drive the two sets of air pumping structures to move. Thus, under the driving of the two sets of air pumping structures, the air supply cover 7 can continuously supply compressed air to the filter screen 5, ensuring that when the air supply cover 7 and the electrostatic adsorption device 28 move along the length direction of the filter screen 5, all the dust adhering to one side of the filter screen 5 can be blown off and separated from the filter screen 5 and adsorbed by the electrostatic adsorption device 28, enabling the dust particles adhering to one side of the filter screen 5 to be evenly treated.

[0061] With the above settings, when the first driving component acts, it can drive the sealing plug 10 to act. When the abutting member 13 is separated from the first driving component, the second spring 14 releases elastic potential energy, pressurizes the air supply hood 7, and compresses the air to pass through the filter screen 5 in the reverse direction. As a result, the dust particles adhering to the filter screen 5 are separated from the filter screen 5 and adsorbed by the electrostatic adsorption device 28, achieving the effect of removing the dust particles adhering to the filter screen 5, avoiding the filter screen 5 from being blocked by dust particles after long-term filtration, improving the filtering effect of the filter screen 5, and at the same time increasing the speed of the waste gas to be treated passing through the filter screen 5.

[0062] Please refer to Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 12 , the first driving component is connected to the air supply hood 7, and the first driving component cooperates with the abutting member 13 to alternately drive the two groups of air pumping structures to act;

[0063] The first driving component includes a bracket 18 fixedly connected to the air supply hood 7. An electric telescopic rod 17 is fixedly installed on the bracket 18. A sliding connecting member 1701 is connected to the moving end of the electric telescopic rod 17, and the sliding connecting member 1701 is slidably connected to a guiding groove 1801 provided on the bracket 18;

[0064] A crosswise rod 19 is connected to the sliding connecting member 1701, and abutting wheels 20 are rotatably installed at both ends of the crosswise rod 19;

[0065] The first driving component further includes a triggering structure connected to the abutting member 13. The triggering structure can separate the abutting member 13 from the abutting wheel 20 after the abutting wheel 20 drives the abutting member 13 to move to a predetermined position;

[0066] The triggering structure includes a first convex shaft 15 rotatably installed on the abutting member 13 and a triggering member 16 connected to the air supply hood 7. The first convex shaft 15 cooperates with the triggering member 16 to enable the abutting member 13 to move away from the abutting wheel 20;

[0067] A second inclined surface 1601 is provided on the side of the triggering member 16 facing the first convex shaft 15. When the first convex shaft 15 abuts against the second inclined surface 1601, the abutting member 13 can slide relative to the connecting shaft 11 and separate from the abutting wheel 20.

[0068] During use, the electric telescopic rod 17 drives the transverse movement rod 19 to move along the length direction of the guide groove 1801, and makes one of the abutting wheels 20 abut against one group of abutting members 13, and drives the abutting member 13 to move, so that the air pumping structure connected to the abutting member 13 can draw in air. As the group of abutting members 13 moves, the first convex shaft 15 on the abutting member 13 will abut against the second inclined surface 1601 on the triggering member 16, and make the abutting member 13 move away from the abutting wheel 20 along its length direction. And after the two are separated (the abutting member 13 moves to the other side of the abutting wheel 20), the first spring 12 can release the elastic potential energy, and press the air in the air pumping structure into the air supply cover 7. At the same time, the abutting wheel 20 at the other end of the transverse movement rod 19 can abut against the first inclined surface 1302 on another group of abutting members 13, and make the abutting member 13 move along its own length until when the abutting wheel 20 moves to the other side of the abutting member 13, the transverse movement rod 19 can stop moving and then move in the reverse direction to repeat the above process, so as to achieve the purpose of alternately driving the two groups of air pumping structures, and have the effect of continuously delivering compressed air towards the air supply cover 7, ensuring that when the air supply cover 7 moves along the length direction of the filter screen 5, the air supply cover 7 can always pump reverse air towards the filter screen 5, so that the dust particles adhering to the filter screen 5 are separated from the filter screen 5.

[0069] Through the above settings, when the electric telescopic rod 17 acts, it can alternately drive the two groups of air pumping structures to act, so as to continuously deliver compressed air into the air supply cover 7, ensuring that when the air supply cover 7 moves along the length direction of the filter screen 5, the air supply cover 7 can always pump reverse air towards the filter screen 5, so that the dust particles adhering to the filter screen 5 are separated from the filter screen 5, and the dust particles adhering to one side of the filter screen 5 can be evenly treated.

[0070] Please refer to Figures 3 to 4 、 Figures 8 to 10 The second driving assembly is connected to the electrostatic adsorption device 28, and a second convex shaft 25 is formed on the second driving assembly;

[0071] The second driving assembly includes a first linear driving module 6 and a second linear driving module 21 arranged on both sides of the filter screen 5. The first linear driving module 6 is connected to the air supply cover 7. It should be noted that when the first linear driving module 6 and the second linear driving module 21 act, they can act synchronously, so that when they drive the air supply cover 7 and the electrostatic adsorption device 28 to act, the air supply cover 7 can maintain the same height as the electrostatic adsorption device 28 in real time, and when the air supply cover 7 pumps reverse air, the electrostatic adsorption device 28 can adsorb the dust particles blown away by the reverse air.

[0072] The second linear drive module 21 is connected to the electrostatic adsorption device 28 through an elastic structure. The elastic structure includes a connecting plate 23 fixedly connected to the electrostatic adsorption device 28. A sliding groove 2301 is provided along the length direction of the connecting plate 23. A follower block 22 fixedly connected to the second linear drive module 21 is slidably installed in the sliding groove 2301. The follower block 22 is connected to the inner wall of the sliding groove 2301 through a third spring 24;

[0073] The second convex shaft 25 is rotatably connected to the connecting plate 23;

[0074] The side plate 26 is connected to the inner wall of the intake air pretreatment filter device 1. The guiding groove provided on the side plate 26 cooperates with the second convex shaft 25, so that when the electrostatic adsorption device 28 moves to the end of the stroke, the electrostatic adsorption device 28 can perform a vibration action;

[0075] The guiding groove includes a first vertical groove 2601 provided on the side plate 26. One end of the first vertical groove 2601 is provided with a second vertical groove 2602. One end of the second vertical groove 2602 away from the first vertical groove 2601 is provided with a horizontal groove 2603. One end of the horizontal groove 2603 away from the second vertical groove 2602 is connected to a third vertical groove 2604. The third vertical groove 2604 is connected to the second vertical groove 2602 through an inclined groove 2605;

[0076] A deflecting member 27 is rotatably installed at the connection between the inclined groove 2605 and the second vertical groove 2602. A torsion spring is provided on the rotating shaft of the deflecting member 27, so that the end of the deflecting member 27 has a state of abutting against the inclined groove 2605.

[0077] In the initial state, the second convex shaft 25 is at one end of the first vertical groove 2601 away from the second vertical groove 2602. At this time, the third spring 24 is in a stretched state. As the air supply hood 7 and the electrostatic adsorption device 28 move, the dust particles blown away by the reverse air flow will be adsorbed on the electrostatic adsorption device 28. At the same time, when the air supply hood 7 and the electrostatic adsorption device 28 move, the second convex shaft 25 will also move along the first vertical groove 2601. After the second convex shaft 25 moves to the end of the first vertical groove 2601, the second convex shaft 25 can enter the second vertical groove 2602 under the guidance of the deflector 27. And after the second convex shaft 25 moves to the end of the second vertical groove 2602, the third spring 24 can release elastic potential energy and drive the second convex shaft 25 to move along the horizontal groove 2603. When the second convex shaft 25 abuts against the third vertical groove 2604, the electrostatic adsorption device 28 can stop instantly and produce a vibration effect. At this time, the dust particles adhering to the electrostatic adsorption device 28 can be separated from the electrostatic adsorption device 28 under the action of the vibration force, so that when the electrostatic adsorption device 28 moves upward, a good adsorption effect can be maintained, preventing the dust particles from re-adhering to the filter net 5 after being separated from the filter net 5 by the reverse air pumped by the air supply hood due to the decrease in the adsorption effect.

[0078] When the electrostatic adsorption device 28 and the air supply hood 7 move upward, the second convex shaft 25 will move along the third vertical groove 2604 and the inclined groove 2605 again. When it abuts against the deflector 27, it will drive the deflector 27 to deflect. At this time, the torsion spring can store potential energy. And after the second convex shaft 25 moves upward along the first vertical groove 2601 and separates from the deflector 27, the deflector 27 can reset, thereby realizing the periodic guidance of the second convex shaft 25 and ensuring that when the electrostatic adsorption device 28 moves to the lower end of the stroke, a vibration action can be performed once.

[0079] Through the above settings, when the air supply hood 7 and the electrostatic adsorption device 28 move to the lower end of the stroke, with the cooperation of the third spring 24, the second convex shaft 25 and the horizontal groove 2603, the electrostatic adsorption device 28 can be driven to perform a movement process of accelerating first and then stopping instantly, and generate vibration. The dust adhered to the electrostatic adsorption device 28 is shaken off by the vibration force, so that the electrostatic adsorption device 28 can restore its adsorption performance, preventing the dust particles from re-adhering to the filter net 5 after being separated from the filter net 5 by the reverse air pumped by the air supply hood due to the decrease in the adsorption effect.

[0080] It should be supplemented that when the electrostatic adsorption device 28 moves to the lower end of the stroke, the electrostatic adsorption device 28 can automatically cut off the power.

[0081] As an embodiment of the present invention, a paint mist catalytic combustion furnace is also proposed, which includes the above-mentioned filtering device for intake air pretreatment, and also includes a combustion device 2 and an exhaust device 3.

[0082] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0083] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filtering device for intake air pretreatment, comprising: A partition plate (4) disposed inside the filtering device (1) for intake air pretreatment, and a filter net (5) is detachably mounted on the partition plate (4); An air supply hood (7) and an electrostatic adsorption device (28) are respectively disposed on both sides of the filter net (5); A gas pumping assembly communicated with the air supply hood (7), the gas pumping assembly includes two sets of gas pumping structures, and an abutting member (13) is elastically disposed at one end of the gas pumping structure; A first driving assembly is connected to the air supply hood (7), and the first driving assembly cooperates with the abutting member (13) to alternately drive the two sets of gas pumping structures to act; A second driving assembly is connected to the electrostatic adsorption device (28), and a second convex shaft (25) is formed on the second driving assembly; A side plate (26) is connected to the inner wall of the filtering device (1) for intake air pretreatment. A guiding groove provided on the side plate (26) cooperates with the second convex shaft (25) to enable the electrostatic adsorption device (28) to perform a vibration action when the electrostatic adsorption device (28) moves to the end of the stroke.

2. The filtering device for intake air pre-treatment according to claim 1, wherein, The gas pumping structure includes a pump cylinder body (8) fixedly connected to the air supply hood (7). Two sets of one-way valves (9) are provided on the pump cylinder body (8), and a sealing plug (10) is hermetically and slidably mounted inside the pump cylinder body (8). A connecting shaft (11) passes through the pump cylinder body (8) and is connected to the sealing plug (10); A first spring (12) is sleeved on the connecting shaft (11). One end of the first spring (12) is connected to the sealing plug (10), and the other end is connected to the inner wall of the pump cylinder body (8).

3. The filtering device for intake air pre-treatment according to claim 2, wherein, One end of the connecting shaft (11) away from the sealing plug (10) is slidably connected to the abutting member (13), and the abutting member (13) is connected to the connecting shaft (11) through a second spring (14); A first inclined surface (1302) is provided at one end of the abutting member (13) away from the second spring (14).

4. A filtering device for intake air pretreatment according to claim 2, characterized in that, The first driving assembly includes a bracket (18) fixedly connected to the air supply hood (7). An electric telescopic rod (17) is fixedly mounted on the bracket (18). A sliding connecting member (1701) is connected to the operating end of the electric telescopic rod (17), and the sliding connecting member (1701) is slidably connected to a guiding groove (1801) provided on the bracket (18); A crosswise rod (19) is connected to the sliding connecting member (1701), and abutting wheels (20) are rotatably mounted at both ends of the crosswise rod (19); The first driving assembly further includes a triggering structure connected to the abutting member (13). The triggering structure can separate the abutting member (13) from the abutting wheel (20) after the abutting wheel (20) drives the abutting member (13) to move to a predetermined position.

5. The filtering device for intake air pretreatment according to claim 4, wherein The triggering structure includes a first convex shaft (15) rotatably mounted on the abutting member (13) and a triggering member (16) connected to the air supply cover (7). The first convex shaft (15) cooperates with the triggering member (16) to enable the abutting member (13) to move away from the abutting wheel (20).

6. The filtering device for intake air pre-treatment according to claim 5, wherein, A second inclined surface (1601) is provided on one side of the triggering member (16) facing the first convex shaft (15). When the first convex shaft (15) abuts against the second inclined surface (1601), the abutting member (13) can slide relative to the connecting shaft (11) and separate from the abutting wheel (20).

7. A filtering device for intake air pretreatment according to claim 1, characterized in that, The second driving assembly includes a first linear driving module (6) and a second linear driving module (21) disposed on both sides of the filter net (5). The first linear driving module (6) is connected to the air supply cover (7). The second linear driving module (21) is connected to the electrostatic adsorption device (28) through an elastic structure.

8. The filtering device for intake air pretreatment according to claim 7, characterized in that, The elastic structure includes a connecting plate (23) fixedly connected to the electrostatic adsorption device (28). A sliding groove (2301) is provided along the length direction of the connecting plate (23). A follower block (22) fixedly connected to the second linear driving module (21) is slidably mounted in the sliding groove (2301). The follower block (22) is connected to the inner wall of the sliding groove (2301) through a third spring (24). The second convex shaft (25) is rotatably connected to the connecting plate (23).

9. A filtering device for intake air pretreatment according to claim 1, characterized in that The guiding groove includes a first vertical groove (2601) provided on the side plate (26). One end of the first vertical groove (2601) is provided with a second vertical groove (2602). One end of the second vertical groove (2602) far from the first vertical groove (2601) is provided with a horizontal groove (2603). One end of the horizontal groove (2603) far from the second vertical groove (2602) is connected to a third vertical groove (2604). The third vertical groove (2604) is connected to the second vertical groove (2602) through an inclined groove (2605). A deflecting member (27) is rotatably mounted at the connection between the inclined groove (2605) and the second vertical groove (2602). A torsion spring is provided on the rotating shaft of the deflecting member (27).

10. A paint mist catalytic combustion furnace, characterized in that, An air intake pre-treatment filtering device according to any one of claims 1 to 9, further comprising a combustion device (2) and an exhaust device (3).

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