Waste gas filtering and circulating filter element for plastic spraying room

Abstract

The utility model discloses a waste gas filtering and circulating filter element for a plastic spraying room, which belongs to the field of air filtering and comprises a fixed frame, filter paper is arranged at the front end in the fixed frame through a supporting inner net, and an activated carbon filter net is arranged at the rear end in the fixed frame through a mounting frame. A vibration assembly used for generating local vibration on the supporting inner net is arranged on the mounting frame and comprises a connecting rod penetrating through the mounting frame, and the front end of the connecting rod is provided with an ejector head making contact with the supporting inner net through an ejector rod. According to the waste gas filtering and circulating filter element for the plastic spraying room, local vibration can be generated on the supporting inner net of the filter element through the vibration assembly, particles accumulated on the filter paper can be removed in time, the particles are prevented from forming a compact filtering layer on the filter paper, and therefore the permeability of the filter paper is kept, and the service life of the filter element is prolonged. Therefore, the filter paper can more effectively capture particles in new waste gas, and the filtering effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, and in particular to exhaust gas filtration and circulation filter elements for use in powder coating rooms. Background Technology

[0002] A powder coating booth is a specialized facility used for powder coating, suitable for surface treatment of products in various industries, such as automotive parts, electrical products, and building materials. The powder coating process generates a large amount of dust, which not only affects environmental quality but may also harm the health of operators. Exhaust gas filtration and recirculation filters can effectively capture this dust and prevent it from spreading into the air.

[0003] The exhaust gas filtration and circulation filter cartridges used in powder coating rooms utilize filter paper, filter screens, and other filtration structures for filtration. Due to the high dust content in the air of powder coating rooms, a large amount of dust will accumulate in the inner mesh and filter paper of the filter cartridge during long-term use. The accumulation of dust will clog the pores of the filter cartridge, leading to a decrease in filtration efficiency and even causing the filter cartridge to fail, thus affecting the power performance of the filter cartridge. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that existing exhaust gas filtration and circulation filter elements used in powder coating rooms will become clogged after long-term filtration, resulting in reduced filtration efficiency or even filter failure, thus affecting the power performance of the filter element. Therefore, this utility model proposes an exhaust gas filtration and circulation filter element for powder coating rooms.

[0005] To achieve the above objectives, this utility model employs the following technology: an exhaust gas filtration and circulation filter element for a powder coating room, comprising a fixed frame, wherein a filter paper is provided at the front end of the fixed frame via a supporting inner mesh, and an activated carbon filter is provided at the rear end of the fixed frame via a mounting bracket, and a vibration component for generating local vibration on the supporting inner mesh is provided on the mounting bracket, the vibration component comprising a connecting rod penetrating the mounting bracket, the front end of the connecting rod being provided with a top head that contacts the supporting inner mesh via a top rod, and the front end of the connecting rod being provided with a first spring that abuts against the mounting bracket via a baffle.

[0006] As a further description of the above technical solution: the rear end of the top rod extends into the movable groove of the connecting rod and is movably connected to the connecting rod, and a second spring is provided on the top rod through a limiting plate to abut against the front end of the connecting rod.

[0007] As a further description of the above technical solution: the rear end of the connecting rod is provided with a connecting end that connects to an external driving structure.

[0008] As a further description of the above technical solution: the top head has a hemispherical structure and is made of rubber.

[0009] As a further description of the above technical solution: the inner support net is detachably installed on the fixed frame via a positioning plate. The positioning plate is provided with a guide rod that penetrates the inner support net, and a third spring is sleeved on the guide rod between the inner support net and the positioning plate.

[0010] As a further description of the above technical solution: the guide rod is provided with a locking nut that abuts against the outer surface of the inner support mesh through a threaded end.

[0011] As a further description of the above technical solution: the filter paper is detachably installed on the inner support mesh via positioning strips, and pleats are formed on the filter paper.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] The vibration component generates localized vibrations on the inner support mesh of the filter element, which helps to remove particles accumulated on the filter paper in a timely manner, preventing particles from forming a dense filter layer on the filter paper, thereby maintaining the permeability of the filter paper. This allows the filter paper to more effectively capture particles in new exhaust gas, ensuring the filtration effect. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown. Figure 1 ;

[0015] Figure 2 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown. Figure 2 ;

[0016] Figure 3 A split diagram according to an embodiment of the present invention is shown;

[0017] Figure 4 A schematic diagram of the structure of the vibration assembly provided according to an embodiment of the present invention is shown;

[0018] Figure 5 A partially cutaway schematic diagram of a vibration assembly provided according to an embodiment of the present invention is shown;

[0019] Figure 6 A partially enlarged schematic diagram according to an embodiment of the present invention is shown;

[0020] Figure 7 A schematic diagram showing the connection between the inner support mesh and the filter paper according to an embodiment of the present invention is shown.

[0021] Legend:

[0022] 1. Fixed frame; 11. Positioning plate; 12. Guide rod; 13. Third spring; 14. Threaded end; 15. Locking nut; 2. Support inner mesh; 21. Positioning strip; 3. Filter paper; 4. Mounting bracket; 5. Activated carbon filter screen; 6. Vibration assembly; 61. Connecting rod; 611. Movable groove; 62. Top rod; 621. Limiting plate; 622. Second spring; 63. Top head; 64. Baffle; 65. First spring; 66. Connecting end. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-7 The exhaust gas filtration and circulation filter element for a powder coating room provided in this embodiment includes a fixed frame 1. The front end of the fixed frame 1 is provided with filter paper 3 through a supporting inner net 2. The filter paper 3 is detachably installed on the supporting inner net 2 through a positioning strip 21. The filter paper 3 has pleats. The rear end of the fixed frame 1 is provided with an activated carbon filter screen 5 through a mounting frame 4. The mounting frame 4 is provided with a vibration component 6 for generating local vibration on the supporting inner net 2.

[0025] In this invention, when using the circulating filter cartridge, the filter cartridge is fixed in the exhaust pipe of the spraying room by the fixing frame 1. When the air in the spraying room is discharged along the exhaust pipe under the action of the fan, the air first comes into contact with the filter paper 3 on the inner support mesh 2. The filter paper 3 filters the plastic particles in the air. The filtered air passes through the inner support mesh 2 and then through the activated carbon filter 5 on the mounting frame 4 for further adsorption and filtration, thereby removing dust particles in the air and achieving air filtration and purification. The filter paper 3 is covered on the inner support mesh 2 by the positioning strip 21. When the positioning strip 21 is removed, the filter paper 3 can be disassembled for easy replacement or cleaning. The vibration component 6 set on the mounting frame 4 can generate local vibration on the inner support mesh 2 and the filter paper 3. The vibration removes the particles accumulated on the filter paper 3 in time, preventing the particles from forming a dense filter layer on the filter paper 3, thereby maintaining the permeability of the filter paper 3 and ensuring filtration efficiency.

[0026] Specifically, such as Figures 2-5As shown, the vibration assembly 6 includes a connecting rod 61 that passes through the mounting frame 4. The front end of the connecting rod 61 is provided with a top head 63 that contacts the inner support net 2 via a top rod 62. The front end of the connecting rod 61 is provided with a first spring 65 that abuts against the mounting frame 4 via a baffle 64.

[0027] The connecting rod 61 passes through the mounting frame 4 and can move on the mounting frame 4. The first spring 65 is sleeved on the connecting rod 61 and located between the mounting frame 4 and the baffle 64. When it is necessary to vibrate the inner support mesh 2 and the filter paper 3 to remove dust particles, the connecting rod 61 is pulled back. At this time, the baffle 64 compresses the first spring 65 and then releases the connecting rod 61. Then, under the reset action of the first spring 65, the top head 63 on the top rod 62 of the connecting rod 61 hits the inner support mesh 2, thereby causing the inner support mesh 2 to vibrate. As the inner support mesh 2 vibrates, the filter paper 3 vibrates, which can shake off the particles attached to the filter paper 3 and the inner support mesh 2, preventing the particles from forming a dense filter layer on the filter paper 3, thereby maintaining the permeability of the filter paper 3 and ensuring the filtration efficiency.

[0028] It should be noted that the rear end of the push rod 62 extends into the movable groove 611 of the connecting rod 61 and is movably connected to the connecting rod 61. The push rod 62 is provided with a second spring 622 that abuts against the front end of the connecting rod 61 through the limiting plate 621. The rear end of the connecting rod 61 is provided with a connecting end 66 that is connected to the external driving structure. The top end 63 has a hemispherical structure and is made of rubber.

[0029] The top head 63 is made of rubber and has a certain degree of flexibility. When the top head 63 hits the inner support mesh 2, it can avoid excessive impact force that could damage the inner support mesh 2. When the top head 63 hits the inner support mesh 2, the top rod 62 will compress towards the movable groove 611, thereby squeezing the second spring 622. Then the second spring 622 rebounds, causing the top head 63 to hit the inner support mesh 2 again. This can improve the vibration effect of the inner support mesh 2 without damaging it, thereby effectively vibrating down the particles on the inner support mesh 2 and the filter paper 3. The rear end of the connecting rod 61 adopts the design of the connecting end 66, which can be connected to an external drive structure after the filter element is installed, such as a manually driven handle or an electric linear drive structure, to achieve manual or electric pulling.

[0030] Specifically, such as Figure 3 , Figure 6 and Figure 7As shown, the inner support net 2 is detachably mounted on the fixed frame 1 via the positioning plate 11. The positioning plate 11 is provided with a guide rod 12 that passes through the inner support net 2, and a third spring 13 located between the inner support net 2 and the positioning plate 11 is sleeved on the guide rod 12. A locking nut 15 that abuts against the outer surface of the inner support net 2 is provided on the guide rod 12 via a threaded end 14.

[0031] During the installation of the inner support net 2, the mounting hole at the top corner of the inner support net 2 is aligned with the guide rod 12 of the positioning plate 11. The guide rod 12 then passes through the mounting hole of the inner support net 2. After that, the locking nut 15 is screwed onto the threaded end 14 of the guide rod 12 for limiting, so that the inner support net 2 is installed on the positioning plate 11. A third spring 13 is provided between the inner support net 2 and the positioning plate 11 and is sleeved on the guide rod 12. When the top 63 of the vibration component 6 hits the inner support net 2, the third spring 13 can cooperate with the vibration component 6 to increase the vibration amplitude of the inner support net 2, thereby effectively vibrating down the particles on the inner support net 2 and the filter paper 3.

[0032] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas filtration and circulation filter element for use in powder coating rooms, characterized in that, The device includes a fixed frame (1), with a filter paper (3) provided at the front end of the fixed frame (1) via a supporting inner net (2), and an activated carbon filter (5) provided at the rear end of the fixed frame (1) via a mounting frame (4). The mounting frame (4) is provided with a vibration component (6) for generating local vibration on the supporting inner net (2). The vibration component (6) includes a connecting rod (61) that passes through the mounting frame (4). The front end of the connecting rod (61) is provided with a top head (63) that contacts the supporting inner net (2) via a top rod (62). The front end of the connecting rod (61) is provided with a first spring (65) that abuts against the mounting frame (4) via a baffle (64).

2. The exhaust gas filtration and circulation filter element for a powder coating room according to claim 1, characterized in that, The rear end of the top rod (62) extends into the movable groove (611) of the connecting rod (61) and is movably connected to the connecting rod (61). A second spring (622) is provided on the top rod (62) through a limiting plate (621) and abuts against the front end of the connecting rod (61).

3. The exhaust gas filtration and circulation filter element for a powder coating room according to claim 2, characterized in that, The rear end of the connecting rod (61) is provided with a connecting end (66) for connection with an external driving structure.

4. The exhaust gas filtration and circulation filter element for a powder coating room according to claim 1, characterized in that, The top head (63) has a hemispherical structure and is made of rubber.

5. The exhaust gas filtration and circulation filter element for a powder coating room according to claim 1, characterized in that, The inner support net (2) is detachably mounted on the fixed frame (1) via a positioning plate (11). The positioning plate (11) is provided with a guide rod (12) that passes through the inner support net (2), and a third spring (13) is sleeved on the guide rod (12) between the inner support net (2) and the positioning plate (11).

6. The exhaust gas filtration and circulation filter element for a powder coating room according to claim 5, characterized in that, The guide rod (12) is provided with a locking nut (15) that abuts against the outer surface of the inner support mesh (2) via a threaded end (14).

7. The exhaust gas filtration and circulation filter element for a powder coating room according to claim 1, characterized in that, The filter paper (3) is detachably mounted on the inner support mesh (2) via a positioning strip (21), and the filter paper (3) has pleats formed on it.

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