Workshop waste gas filtering and purifying equipment

Abstract

The invention relates to the technical field of waste gas treatment, and discloses workshop waste gas filtering and purifying equipment which comprises a purifying cylinder, the interior of the purifying cylinder is a cavity, the bottom face of the purifying cylinder is communicated with a drainage pipe, a valve is installed in the drainage pipe, the outer wall of the upper end of the purifying cylinder is communicated with an air inlet pipe, and an air inlet fan is installed at the end of the air inlet pipe; an exhaust pipe is arranged on the outer wall of the lower end part of the purification cylinder in a communicating manner; an exhaust fan is mounted at the end part of the exhaust pipe; the friction adsorption assembly is arranged in the purification cylinder and mounted on the top of the inner wall of the purification cylinder; the preliminary filtering assembly is arranged in the air inlet pipe; according to the waste gas purification device, primary solid particles of waste gas can be filtered through the arranged primary filtering assembly, particularly, vibration of a circular filtering plate can be achieved under the work of the friction adsorption assembly, and the particles fall off and are collected and treated.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a workshop waste gas filtering and purification device. Background Art

[0002] A large amount of waste gas is generated during the production and operation process in the workshop. There are a lot of harmful substances in the waste gas, which poses a great threat to the health of the workers and also brings great environmental pollution problems. With the improvement of people's living standards, people's awareness of environmental protection is gradually increasing, and the requirements for environmental quality are gradually increasing. Therefore, people pay more and more attention to the treatment of waste gas in the production process.

[0003] According to a workshop waste gas treatment and purification equipment disclosed in Chinese patent CN212091648U, although the patent realizes the treatment of waste filtration, the patent cannot realize multi-stage treatment of waste, resulting in solid particles in the gas still existing in the gas discharged later.

[0004] Therefore, it is necessary to design a workshop exhaust gas filtration and purification equipment with strong practicality. Summary of the invention

[0005] The purpose of the present invention is to provide a workshop exhaust gas filtering and purification equipment to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a workshop exhaust gas filtering and purification equipment, comprising: The purification cylinder has a hollow interior, a drain pipe is connected to the bottom surface, a valve is installed in the drain pipe, an air intake pipe is connected to the outer wall of the upper end of the purification cylinder, an air intake fan is installed at the end of the air intake pipe, and an exhaust pipe is connected to the outer wall of the lower end of the purification cylinder, an exhaust fan is installed at the end of the exhaust pipe; The friction adsorption component is arranged inside the purification cylinder and is installed on the top of the inner wall of the purification cylinder; A preliminary filtering assembly is arranged in the air intake pipe; A spray assembly is arranged between the purification cylinder and the base; The separation component is installed at the bottom of the friction adsorption component and is connected to the inner wall of the purification cylinder.

[0007] According to the above technical solution, a bracket is fixedly installed on the outer wall of the lower end of the purification cylinder, and the bottom of the bracket is fixedly installed on the top surface of the base. The provided bracket can provide a stable support for the purification cylinder, and the installed base can enhance stability.

[0008] According to the above technical solution, a first arc-shaped sealing plate is snap-fitted on the outer wall of the middle portion of the purification cylinder, and a second arc-shaped sealing plate is snap-fitted on the outer wall of the upper end portion of the purification cylinder. The first arc-shaped sealing plate and the second arc-shaped sealing plate can be easily disassembled by snap-fitting them, so that the internal structure of the purification cylinder can be cleaned conveniently.

[0009] According to the above technical solution, the friction adsorption component includes: The motor is fixedly mounted on the top of the inner wall of the purification cylinder, and a connecting shaft is fixedly mounted on the output end of the motor; A first adsorption plate is fixedly sleeved on the outer wall of the connecting shaft, and the outer edge of the first adsorption plate is in contact with the inner wall of the purification cylinder; The second adsorption plate is movably sleeved on the outer wall of the connecting shaft, the outer edge of the second adsorption plate is fixedly installed on the inner wall of the purification cylinder, and the second adsorption plate is contacted with the bottom surface of the first adsorption plate.

[0010] According to the above technical solution, the surfaces where the first adsorption plate and the second adsorption plate contact each other are provided with polyester fiber material, which can accelerate the effect of static electricity generated by friction between the two.

[0011] According to the above technical solution, the step filtering component includes: The auxiliary rod has a bottom end fixedly mounted on the top surface of the first adsorption plate; A tube body is fixedly mounted on the inner wall of the air intake pipe, the left end of the tube body is fixedly mounted on the right end of the bellows, an extrusion plate is slidably arranged between the tube body and the bellows, the outer wall of the upper half of the bellows is fixedly mounted on the inner wall of the air intake pipe, and the outer wall of the lower half of the bellows is arranged in contact with the inner wall of the air intake pipe; A circular filter plate is arranged in contact with the inner wall of the raised portion of the intake pipe, and the circular filter plate is fixedly installed with the end surface of the corrugated pipe, and is also fixedly arranged with the end of the extrusion plate; One end of the first spring is fixedly mounted on one side of the circular filter plate, and the other end is fixedly mounted on the inner wall of the raised portion of the intake pipe.

[0012] According to the above technical solution, a connecting pipe is provided on the bottom surface of the raised portion of the air intake pipe, and a collecting pipe for collecting dust is threadedly connected to the connecting pipe, which is convenient for collecting dust and also convenient for disassembling the collecting pipe to clean up the dust.

[0013] According to the above technical solution, the spray assembly includes: The water tank, the bottom surface and the top surface of the base are fixedly installed; The water pipe has one end connected to the water pump in the water tank, and the other end penetrates the outer wall of the purification cylinder and extends to the inner wall to be connected to the nozzle, and the nozzle is located between the friction adsorption component and the separation component.

[0014] According to the above technical solution, the separation component includes: A rubber body, the top of which is fixed to the bottom of the connecting shaft, the rubber body having a corrugated configuration on the outside and a hollow configuration on the inside; A conical filter plate, the top surface of which is fixedly mounted on the bottom end of the rubber body, an annular plate being fixedly mounted on the bottom surface of the conical filter plate, a convex plate being rotatably sleeved on the lower end of the conical filter plate, the convex plate being fixedly mounted on the inner wall of the purification cylinder, and having a row of holes arranged on the surface; a short column and a hemispherical block are arranged between the convex plate and the annular plate, the top end of the short column is fixedly mounted on the inner wall of the inner groove of the annular plate, and the bottom end of the short column is arranged in contact with the top surface of the convex plate, and the hemispherical block is fixedly mounted on the top surface of the convex plate.

[0015] According to the above technical solution, the outer wall of the rubber body is sleeved with a second spring, the inner wall of the upper end of the second spring is fixedly installed with the inner wall of the upper end of the rubber body, and the bottom end of the second spring is fixedly installed with the top surface of the conical filter plate. The vibration performance can be increased by setting the second spring, so that the impurities on the conical filter plate can be accelerated to fall off.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. In the present invention, the motor is arranged to enable the connecting shaft to drive the first adsorption plate to rotate, so that friction with the second adsorption plate can be generated, and an electrostatic effect can be exerted to achieve dust adsorption processing.

[0017] 2. The present invention can filter the initial solid particles of the exhaust gas by setting up a preliminary filtering component, especially when the friction adsorption component is working, the circular filter plate can vibrate to drop the particles for collection and treatment.

[0018] 3. The present invention can realize spraying treatment of the waste gas after being treated by the preliminary filtering component and the friction adsorption component through the provided spraying component, so as to combine the dust with water and achieve a purification effect.

[0019] 4. The present invention can realize the removal of impurities after dust and water are combined through the separation component, and centralized cleaning, which will not affect the later filtering and purification treatment of the conical filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of a workshop waste gas filtering and purification device of the present invention; Figure 2 This invention is a workshop waste gas filtering and purification equipment Figure 1A schematic diagram of the structure from another angle; Figure 3 It is a schematic diagram of a half-section structure of a purification cylinder in a workshop exhaust gas filtering and purification device of the present invention; Figure 4 This invention is a workshop waste gas filtering and purification equipment Figure 3 Schematic diagram of the local decomposition structure in; Figure 5 It is a schematic diagram of the exploded partial decomposition structure of a preliminary filtering component in a workshop exhaust gas filtering and purification device of the present invention; Figure 6 It is a schematic diagram of the explosion structure of a separation component in a workshop exhaust gas filtering and purification device of the present invention; Figure 7 It is a schematic diagram of a half-section structure of an annular plate in a workshop exhaust gas filtering and purification device of the present invention.

[0021] In the figure: 1 purification cylinder, 2 bracket, 3 base, 4 air inlet pipe, 5 exhaust pipe, 6 friction adsorption component, 61 motor, 62 connecting shaft, 63 first adsorption plate, 64 second adsorption plate, 7 preliminary filtering component, 71 auxiliary rod, 72 extrusion plate, 73 pipe body, 74 bellows, 75 circular filter plate, 76 first spring, 77 connecting pipe, 78 collecting pipe, 8 spray component, 81 water tank, 82 water pipe, 83 nozzle, 9 separation component, 91 rubber body, 92 conical filter plate, 93 annular plate, 94 convex plate, 95 short column, 96 hemispherical block, 97 second spring, 10 first arc sealing plate, 11 second arc sealing plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] See also Figure 1-7 The present invention provides a technical solution: a workshop exhaust gas filtering and purification equipment, comprising: The purification cylinder 1 is provided with a cavity inside, and a drain pipe is provided on the bottom surface thereof, and a valve is installed in the drain pipe; an air intake pipe 4 is provided on the outer wall of the upper end of the purification cylinder 1, and an air intake fan (the air intake fan is not shown in the figure) is installed on the end of the air intake pipe 4; an exhaust pipe 5 is provided on the outer wall of the lower end of the purification cylinder 1, and an exhaust fan (the exhaust fan is not shown in the figure) is installed on the end of the exhaust pipe 5; Among them, a bracket 2 is fixedly installed on the outer wall of the lower end of the purification cylinder 1, and the bottom of the bracket 2 is fixedly installed on the top surface of the base 3. The bracket 2 can provide a stable support for the purification cylinder 1, and the stability can be enhanced by installing the base 3. The outer wall of the middle part of the purification cylinder 1 is clamped with a first arc-shaped sealing plate 10, and the outer wall of the upper end of the purification cylinder 1 is clamped with a second arc-shaped sealing plate 11. The first arc-shaped sealing plate 10 and the second arc-shaped sealing plate 11 can be easily disassembled by clamping them, so that the internal structure of the purification cylinder 1 can be cleaned conveniently; The friction adsorption component 6 is arranged inside the purification cylinder 1 and is installed on the top of the inner wall of the purification cylinder 1; A preliminary filter assembly 7 is arranged in the air intake pipe 4; The spray assembly 8 is arranged between the purification cartridge 1 and the base 3; The separation component 9 is installed at the bottom of the friction adsorption component 6 and connected to the inner wall of the purification cylinder 1; The friction adsorption assembly 6 comprises: The motor 61 is fixedly mounted on the top of the inner wall of the purification cylinder 1, and a connecting shaft 62 is fixedly mounted on the output end of the motor 61; The first adsorption plate 63 is fixedly sleeved on the outer wall of the connecting shaft 62, and the outer edge of the first adsorption plate 63 is in contact with the inner wall of the purification cylinder 1; The second adsorption plate 64 is movably sleeved on the outer wall of the connecting shaft 62 , the outer edge of the second adsorption plate 64 is fixedly mounted on the inner wall of the purification cylinder 1 , and the second adsorption plate 64 is contacted with the bottom surface of the first adsorption plate 63 .

[0024] In the specific implementation process, the motor 61 is started to rotate the connecting shaft 62, and the first adsorption plate 63 can be rotated under the rotation of the connecting shaft 62, so that friction and static electricity can be generated between the second adsorption plate 64, so that the dust entering the waste can be adsorbed.

[0025] In this embodiment, the surfaces where the first adsorption plate 63 and the second adsorption plate 64 contact each other are made of polyester fiber material, which can accelerate the static electricity effect generated by friction between the two and enhance the adsorption of dust. Example

[0026] Based on the implementation of the above scheme, the preliminary filtering component 7 includes: The auxiliary rod 71 has a bottom end fixedly mounted on the top surface of the first adsorption plate 63; The tube body 73 is fixedly mounted on the inner wall of the air intake pipe 4, the left end of the tube body 73 is fixedly mounted on the right end of the bellows 74, an extrusion plate 72 is slidably arranged between the tube body 73 and the bellows 74, the outer wall of the upper half of the bellows 74 is fixedly mounted on the inner wall of the air intake pipe 4, and the outer wall of the lower half of the bellows 74 is arranged in contact with the inner wall of the air intake pipe 4; The circular filter plate 75 is contacted with the inner wall of the raised portion of the intake pipe 4, and the circular filter plate 75 is fixedly mounted on the end surface of the bellows 74, and is also fixedly mounted on the end of the extrusion plate 72; One end of the first spring 76 is fixedly mounted on one surface of the circular filter plate 75 , and the other end is fixedly mounted on the inner wall of the raised portion of the intake pipe 4 .

[0027] In the specific implementation process, the auxiliary rod 71 can be rotated together by rotating the first adsorption plate 71. During the rotation of the auxiliary rod 71, the extrusion plate 72 can be squeezed to move the extrusion plate 72 and squeeze the circular filter plate 75. The circular filter plate 75 can be vibrated due to the provision of the first spring 76, so that the solid particles filtered by the circular filter plate 75 can be shaken off, thereby playing a preliminary filtering role.

[0028] In this embodiment, a connecting pipe 77 is provided on the bottom surface of the raised portion of the air inlet pipe 4, and a collecting pipe 78 for collecting dust is threadedly connected to the connecting pipe 77, which is convenient for collecting dust and also convenient for disassembling the collecting pipe 78 to clean up the dust. Example

[0029] Based on the implementation of the above solution, the spray assembly 8 includes: The water tank 81, the bottom surface of which is fixedly mounted to the top surface of the base 3; The water pipe 82 has one end connected to a water pump in the water tank 81 (the water pump is not shown in the figure), and the other end passes through the outer wall of the purification cylinder 1 and extends to the inner wall to connect to the nozzle 83. The nozzle 83 is located between the friction adsorption component 6 and the separation component 9.

[0030] In the specific implementation process, the water in the water tank 81 is sprayed out from the nozzle 83 through the water pipe 82 by starting the water pump, and the waste treated by the preliminary filtration component 7 and the friction adsorption component 6 is sprayed, so that the residual dust is combined with the water to purify the exhaust gas. Example

[0031] Based on the implementation of the above solution, the separation component 9 includes: The top of the rubber body 91 is fixed to the bottom of the connecting shaft 62. The outer surface of the rubber body 91 is corrugated and the inner surface is hollow. The hollow inner surface of the rubber body 91 and the corrugated outer wall are convenient for deformation of the rubber body 91 and vibration effect. The top surface of the conical filter plate 92 is fixedly mounted on the bottom end of the rubber body 91, and the bottom surface of the conical filter plate 75 is fixedly mounted with an annular plate 93. The lower end of the conical filter plate 92 is rotatably sleeved with a convex plate 94, which is fixedly mounted on the inner wall of the purification cylinder 1 and has a row of holes on the surface; a short column 95 and a hemispherical block 96 are arranged between the convex plate 94 and the annular plate 93, the top end of the short column 95 is fixedly mounted on the inner wall of the inner groove of the annular plate 93, and the bottom end of the short column 95 is in contact with the top surface of the convex plate 94, and the hemispherical block 96 is fixedly mounted on the top surface of the convex plate 94.

[0032] In the specific implementation process, the dust can be combined with water by spraying through the spraying component 8 and then fall on the conical filter plate 92. When the connecting shaft 62 rotates, the conical filter plate 92 can be rotated together, so that centrifugal force can be formed to throw out the dust after being sprayed with water and fall on the convex plate 94. Due to the provision of the rubber body 91, the short column 95, and the hemispherical block 96, the vibration of the conical filter plate 92 can be realized, so that the dust combined with water is prevented from adhering to the conical filter plate 92, thereby avoiding affecting the purification and filtering effect.

[0033] In this embodiment, the outer wall of the rubber body 91 is sleeved with a second spring 97, the inner wall of the upper end of the second spring 91 is fixedly installed to the inner wall of the upper end of the rubber body 91, and the bottom end of the second spring 91 is fixedly installed to the top surface of the conical filter plate 92. The second spring 91 can increase the vibration performance, thereby accelerating the falling of impurities on the conical filter plate 92.

[0034] Working principle: Under the action of the air inlet fan, the waste in the workshop can enter the purification cylinder 1. At this time, it will first pass through the circular filter plate 75 for preliminary filtering treatment. At the same time, the motor 61 is started to rotate the connecting shaft 62. The first adsorption plate 63 can be rotated under the rotation of the connecting shaft 62, so that friction can be generated between the second adsorption plate 64, thereby generating static electricity, which can adsorb the dust in the exhaust gas after entering the purification cylinder 1. At the same time, the auxiliary rod 71 installed on the first adsorption plate 63 rotates together and squeezes the squeezing plate 72. Under the action of the first spring 76, the circular filter plate 75 can be vibrated repeatedly to vibrate the solid particles into the collection pipe 78 for later centralized treatment. When the exhaust gas treated by the friction adsorption component 6 enters When it reaches the bottom, the water in the water tank 61 can be sprayed out from the nozzle 83 through the water pipe 82 under the action of the water pump, and the dust is combined with water to form impurities that fall on the conical filter plate 92. Due to the setting of the rubber body 91, the rotation of the connecting shaft 62 can realize the rotation of the conical filter plate 92, forming a centrifugal force to throw the impurities onto the spit plate 94. Since the short column 95 and the hemispherical block 96 can form resistance, the conical filter plate 92 can be vibrated under the action of the second spring 97 to accelerate the falling of impurities and avoid affecting the filtering and purification process. Finally, the filtered and purified air is discharged through the air outlet fan. Finally, the first arc sealing plate 10 and the second arc sealing plate 11 can be opened to clean the impurities in the purification cylinder 1.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A workshop waste gas filtering and purification equipment, characterized in that: include: The purification cylinder (1) has a hollow interior and is connected to a drain pipe on its bottom surface. A valve is installed in the drain pipe. An air intake pipe (4) is connected to the outer wall of the upper end of the purification cylinder (1). An air intake fan is installed at the end of the air intake pipe (4). An exhaust pipe (5) is connected to the outer wall of the lower end of the purification cylinder (1). An exhaust fan is installed at the end of the exhaust pipe (5). A friction adsorption component (6) is arranged inside the purification cylinder (1) and is mounted on the top of the inner wall of the purification cylinder (1); A preliminary filtering assembly (7) is arranged in the air intake pipe (4); A spray assembly (8) is arranged between the purification cylinder (1) and the base (3); The separation component (9) is installed at the bottom of the friction adsorption component (6) and is connected to the inner wall of the purification cylinder (1).

2. The workshop exhaust gas filtering and purification equipment according to claim 1 is characterized in that: A bracket (2) is fixedly mounted on the outer wall of the lower end of the purification cylinder (1), and the bottom of the bracket (2) is fixedly mounted on the top surface of the base (3).

3. The workshop exhaust gas filtering and purification equipment according to claim 2 is characterized in that: A first arc-shaped sealing plate (10) is clamped on the outer wall of the middle portion of the purification cylinder (1), and a second arc-shaped sealing plate (11) is clamped on the outer wall of the upper end portion of the purification cylinder (1).

4. The workshop exhaust gas filtering and purification equipment according to claim 3 is characterized by: The friction adsorption component (6) comprises: A motor (61) is fixedly mounted on the top of the inner wall of the purification cylinder (1), and a connecting shaft (62) is fixedly mounted on the output end of the motor (61); A first adsorption plate (63) is fixedly sleeved on the outer wall of the connecting shaft (62), and an outer edge of the first adsorption plate (63) is arranged in contact with the inner wall of the purification cylinder (1); The second adsorption plate (64) is movably sleeved on the outer wall of the connecting shaft (62), the outer edge of the second adsorption plate (64) is fixedly mounted on the inner wall of the purification cylinder (1), and the second adsorption plate (64) is arranged in contact with the bottom surface of the first adsorption plate (63).

5. The workshop exhaust gas filtering and purification equipment according to claim 4 is characterized in that: The surfaces of the first adsorption plate (63) and the second adsorption plate (64) that contact each other are provided with polyester fiber material.

6. The workshop exhaust gas filtering and purification equipment according to claim 5 is characterized in that: The preliminary filtering component (7) comprises: An auxiliary rod (71), the bottom end of which is fixedly mounted on the top surface of the first adsorption plate (63); A tube body (73) is fixedly mounted on the inner wall of the air intake pipe (4), the left end of the tube body (73) is fixedly mounted on the right end of the bellows (74), an extrusion plate (72) is slidably arranged between the tube body (73) and the bellows (74), the outer wall of the upper half of the bellows (74) is fixedly mounted on the inner wall of the air intake pipe (4), and the outer wall of the lower half of the bellows (74) is arranged in contact with the inner wall of the air intake pipe (4); A circular filter plate (75) is arranged in contact with the inner wall of the raised portion of the air inlet pipe (4), and the circular filter plate (75) is fixedly mounted on the end surface of the bellows (74) and is also fixedly arranged on the end of the extrusion plate (72); A first spring (76) has one end fixedly mounted on one surface of the circular filter plate (75) and the other end fixedly mounted on the inner wall of the raised portion of the intake pipe (4).

7. The workshop exhaust gas filtering and purification equipment according to claim 6 is characterized in that: A connecting pipe (77) is provided on the bottom surface of the raised portion of the air inlet pipe (4), and the connecting pipe (77) is threadedly connected to a collecting pipe (78) for collecting dust.

8. The workshop exhaust gas filtering and purification equipment according to claim 7 is characterized by: The spray assembly (8) comprises: A water tank (81), the bottom surface of which is fixedly mounted on the top surface of the base (3); The water pipe (82) has one end connected to the water pump in the water tank (81), and the other end penetrates the outer wall of the purification cylinder (1) and extends to the inner wall to be connected to the nozzle (83), wherein the nozzle (83) is located between the friction adsorption component (6) and the separation component (9).

9. The workshop exhaust gas filtering and purification equipment according to claim 8 is characterized by: The separation component (9) comprises: A rubber body (91) having a top portion fixed to the bottom end of the connecting shaft (62), wherein the rubber body (91) has a corrugated configuration on the outside and a hollow configuration on the inside; A conical filter plate (92) has its top surface fixedly mounted on the bottom end of the rubber body (91); an annular plate (93) is fixedly mounted on the bottom surface of the conical filter plate (92); a convex plate (94) is rotatably sleeved on the lower end of the conical filter plate (92); the convex plate (94) is fixedly mounted on the inner wall of the purification cylinder (1) and has a row of holes on its surface; a short column (95) and a hemispherical block (96) are arranged between the convex plate (94) and the annular plate (93); the top end of the short column (95) is fixedly mounted on the inner wall of the inner groove of the annular plate (93), and the bottom end of the short column (95) is arranged in contact with the top surface of the convex plate (94); and the hemispherical block (96) is fixedly mounted on the top surface of the convex plate (94).

10. The workshop exhaust gas filtering and purification equipment according to claim 9, characterized in that: The outer wall of the rubber body (91) is sleeved with a second spring (97), the inner wall of the upper end of the second spring (91) is fixedly mounted to the inner wall of the upper end of the rubber body (91), and the bottom end of the second spring (91) is fixedly mounted to the top surface of the conical filter plate (92).

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