Locking rod spraying dust removal equipment and dust removal method thereof

Abstract

The application relates to the technical field of lock rod dust removal equipment, and discloses a lock rod spraying dust removal equipment and a dust removal method thereof, which comprises a main body, an air outlet pipe fixedly connected to the right side of the main body, a first connecting frame fixedly connected to the inside of the main body, and a plurality of filter cartridges arranged at the bottom of the first connecting frame. The filter cartridges form uninterrupted small-amplitude vibration force in the process of filtering dust-containing gas through the elasticity of spring discs, the filter cartridges continuously vibrate in the process of filtering dust, the loose powder just adhered to the surface of the filter cartridges falls off under the action of vibration, the formation of a compact dust layer on the surface of the filter cartridges is inhibited, the back blowing intensity of the pulse back blowing airflow in the inside of the subsequent filter cartridges is ensured, the pulse back blowing gas is easier to clean the dust on the surface of the filter cartridges, and the dust removal efficiency in the spraying process is improved.

Description

Technical Field

[0001] This invention relates to the technical field of lock bar dust removal equipment, specifically to a dust removal device and method for lock bar spraying. Background Technology

[0002] Locking rods are long metal locking rods used in switch cabinets and distribution cabinets. Dust removal equipment for locking rod powder coating is a dust removal and powder recovery purification equipment specifically designed for locking rod powder coating production lines. It is used to handle the dust generated throughout the entire locking rod powder coating process and consists of two main functional units: pre-coating workpiece cleaning and dust removal and over-coating powder recovery and dust removal at the coating station. To prevent dust from scattering during the spraying of locking rods, pulse-jet filter cartridges are typically used to filter the dust-laden gas, isolating the dust on the surface of the cartridge. Then, pulse-jet gas is used to remove the dust from the cartridge surface for recycling, achieving the purpose of dust removal. The filter cartridges are usually fixedly installed in a dust collection cabinet. Because the dust during locking rod spraying has strong adhesive force, and the dust content in the gas before the pulse-jet filter cartridge is high, during prolonged dust removal, a relatively dense dust layer can easily form on the surface and within the folds of the filter cartridge. This layer is difficult to be blown off by the pulse-jet gas, causing a continuous increase in gas flow resistance and reducing dust removal efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a dust removal device and method for lock bar spraying, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a dust removal device for lock rod spraying, comprising a main body, an air outlet pipe fixedly connected to the right side of the main body, a first connecting frame fixedly connected inside the main body, and a plurality of filter cylinders disposed at the bottom of the first connecting frame, and further comprising: The moving mechanism is installed inside the filter cartridge and is used to apply vibration force to the filter cartridge with the flow of gas during the dust removal process. The moving mechanism includes a chassis bolted to the inner wall of the bottom of the filter cartridge, and two fixing rings fixedly connected to the top of the chassis. The outer surface of the first fixing ring has several annular grooves. A guiding mechanism is installed on top of the fixed ring to limit excessive oscillation of the moving mechanism during pulse backflush. The guiding mechanism includes a sliding disc that is slidably connected between two fixed rings.

[0005] Furthermore, the main body includes: A connecting component is installed at the bottom of the first connecting frame to ensure the installation position of the filter cartridge during dust removal. The fixing component is installed at the bottom of the connecting component.

[0006] Furthermore, the organizations involved in the activities also include: The limiting component is installed on the top of the chassis to ensure the stability of the sliding plate as it slides between the two fixed rings; The shaking assembly is mounted on top of the chassis and is used to generate vibration force inside the filter cartridge as gas passes through it.

[0007] Furthermore, the guiding institutions also include: The auxiliary component is installed on top of the sliding disc to reduce the re-adsorption of detached dust onto the filter cartridge surface when the filter cartridge vibrates.

[0008] Furthermore, the connecting assembly includes four blocking rings fixedly connected to the bottom of the first connecting frame, and a spring disc is fixedly connected to the top inner wall of the blocking rings; The top of the filter cartridge is bolted to the bottom of the spring disc.

[0009] Furthermore, the fixing assembly includes three first fixing rods bolted to the inner wall of the bottom of the spring disc; Several conical rings are fixedly connected to the outer surfaces of the three first fixed rods located inside the filter cartridge.

[0010] Furthermore, the limiting component includes several second fixing rods fixedly connected to the top of the chassis, wherein two of the second fixing rods have return springs slidably connected to their outer surfaces; The two ends of the return spring abut against the base and the sliding plate, respectively.

[0011] Furthermore, the swaying assembly includes a swaying spring fixedly connected to the top of the chassis, and a T-shaped long rod fixedly connected to the top of the swaying spring; The top of the T-shaped rod is spherical; By leveraging the elasticity of the spring, the T-shaped rod can swing and strike the tops of multiple fixed rings as the gas flows upward through the filter cartridge, causing the filter cartridge to vibrate.

[0012] Furthermore, the sliding disc located between the two fixed rings is slidably connected to the surface of a plurality of second fixed rods; The auxiliary component includes a guide frame fixedly connected to the top of the sliding disk, and a second connecting frame is slidably connected inside the guide frame; The bottom of the second connecting frame contacts the stepped end face of the T-shaped long bar; When the T-shaped rod swings through the rocking spring, the swing of the T-shaped rod will periodically push the bottom of the second connecting frame, causing the second connecting frame to slide up and down. Several curved rings are fixedly connected to the outer surface of the second connecting frame, and the curved rings are located at the bottom of the conical ring.

[0013] Furthermore, a dust removal method for a dust removal device used for locking bar spraying, the dust removal device used for locking bar spraying, the method comprising the following steps: S1: Placement and installation: The staff will install the top of the multiple blocking rings to the bottom inner wall of the spring disc with bolts. Then, the base plate will be placed inside the filter cylinder, and the base plate and the filter cylinder will be securely connected from the bottom of the filter cylinder with bolts. S2: Suction Filter: When the suction fan is turned on, a negative pressure airflow is formed between the first connecting frame and the main body, and the external air is drawn in through the filter cartridge; S3: Dust Removal: Dust in the gas will be trapped by the filter cartridge, while clean gas will pass through the filter cartridge and be discharged out through the exhaust pipe.

[0014] The present invention has the following beneficial effects: 1. In this invention, the filter cartridge generates a continuous small-amplitude vibration force during the filtration of dust-laden gas through the elasticity of the spring disc. The continuous vibration of the filter cartridge during dust filtration causes the loose powder that has just adhered to the surface of the filter cartridge to fall off due to the vibration, inhibiting the formation of a dense dust layer on the surface of the filter cartridge. This ensures the backflushing intensity of the subsequent pulse backflushing airflow inside the filter cartridge, making it easier for the pulse backflushing gas to clean the dust on the surface of the filter cartridge and improving the dust removal efficiency during the spraying process.

[0015] 2. In this invention, a portion of the gas entering the inner cavity of the filter cartridge from the outside is deflected back by the concave arc surface of the curved ring. At this time, the deflected airflow forms a blowing force outward in the inner cavity of the filter cartridge, reducing the amount of dust that has been shaken off the surface of the filter cartridge and being re-adsorbed back onto the surface of the filter cartridge. This affects the amount of dust that falls off the surface of the filter cartridge, ensuring the permeability of the filter cartridge when filtering dust and further enhancing the dust removal efficiency of the filter cartridge.

[0016] 3. This invention keeps the T-shaped rod relatively vertical and stable in the pulsed gas, preventing it from swinging significantly under the impact of strong pulsed airflow and causing severe alternating impacts on the inner wall of the filter cartridge, which could lead to damage and deformation inside the filter cartridge. This ensures the continuity of the filter cartridge in filtering dust and the integrity of the filter cartridge surface, thus improving the stability of the dust removal process.

[0017] 4. In this invention, when the pulsed airflow impacts the guide frame and it is difficult to quickly backflush outward from the bottom area inside the filter cylinder, the uniformity of the backflush from inside the filter cylinder is ensured. At the same time, when the sliding disc drives the second connecting frame to move down quickly, the second connecting frame will drive multiple curved rings to slide down. After the pulsed airflow ejected from inside the filter cylinder impacts the inner wall of the filter cylinder, it is deflected and guided by the curved arc surfaces of the multiple curved rings, maintaining the penetration intensity of the backflush airflow on the inner wall of the filter cylinder. This improves the uniformity of backflush cleaning of dust on the surface of the filter cylinder while further enhancing the backflush intensity of dust.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a partial cross-sectional structural diagram of the connecting component of the present invention; Figure 5 This is a partial cross-sectional view of the filter cartridge of the present invention. Figure 6 This is a partial cross-sectional structural diagram of the active mechanism of the present invention; Figure 7 This is a schematic diagram of a partial cross-sectional structure of the limiting component of the present invention; Figure 8 This is a schematic diagram of the auxiliary components of the present invention; Figure 9 This is a partial structural diagram of the auxiliary component of the present invention; Figure 10 This is a flowchart of the dust removal method of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Air outlet duct; 11. Connecting assembly; 111. First connecting frame; 112. Blocking ring; 113. Spring disc; 12. Fixing assembly; 121. First fixing rod; 122. Conical ring; 2. Movable mechanism; 201. Chassis; 21. Restricting assembly; 211. Fixing ring; 212. Second fixing rod; 22. Shaking assembly; 221. Shaking spring; 222. T-shaped long rod; 3. Guiding mechanism; 301. Sliding disc; 31. Auxiliary assembly; 311. Guiding frame; 312. Second connecting frame; 313. Bending ring; 4. Filter cartridge. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-10 As shown, the present invention is a dust removal device for lock rod spraying, including a main body 1, an air outlet pipe 101 fixedly connected to the right side of the main body 1, a first connecting frame 111 fixedly connected inside the main body 1, and a plurality of filter cylinders 4 disposed at the bottom of the first connecting frame 111, and further including: Movable mechanism 2 is installed inside the filter cartridge 4 and is used to apply vibration force to the filter cartridge 4 with the flow of gas during the dust removal process. The active mechanism 2 includes a chassis 201 bolted to the inner wall of the bottom of the filter cylinder 4. Two fixing rings 211 are fixedly connected to the top of the chassis 201. The outer surface of the first fixing ring 211 is provided with several annular grooves. The guide mechanism 3 is installed on the top of the fixed ring 211 to limit excessive swinging of the movable mechanism 2 during pulse backflush. The guide mechanism 3 includes a sliding disk 301 that is slidably connected between two fixed rings 211.

[0024] Entity 1 includes: Connection component 11 is installed at the bottom of the first connection frame 111 to ensure the installation position of the filter cartridge 4 during dust removal. Fixing component 12 is installed at the bottom of connecting component 11.

[0025] Organization 2 also includes: The limiting component 21 is installed on the top of the chassis 201 to ensure the stability of the sliding disk 301 sliding between the two fixed rings 211. The shaking assembly 22 is installed on the top of the chassis 201 and is used to generate a vibration force inside the filter cartridge 4 when the gas passes through the filter cartridge 4.

[0026] Guiding mechanism 3 also includes: Auxiliary component 31 is installed on top of sliding disk 301 to reduce the re-adsorption of detached dust onto the surface of filter cartridge 4 when the filter cartridge 4 vibrates.

[0027] The connecting assembly 11 includes four blocking rings 112 fixedly connected to the bottom of the first connecting frame 111, and a spring disc 113 is fixedly connected to the top inner wall of the blocking rings 112; The top of the filter cartridge 4 is bolted to the bottom of the spring disc 113; When the suction fan is working, it will create a negative pressure airflow between the first connecting frame 111 and the main body 1, and draw in the external gas through the filter cartridge 4.

[0028] The fixing assembly 12 includes three first fixing rods 121 bolted to the inner wall of the bottom of the spring disc 113; Several conical rings 122 are fixedly connected to the outer surface of the three first fixing rods 121 located inside the filter cylinder 4.

[0029] The limiting component 21 includes a plurality of second fixing rods 212 fixedly connected to the top of the chassis 201, wherein two of the second fixing rods 212 are slidably connected to a return spring on their outer surfaces; The two ends of the return spring abut against the base plate 201 and the sliding plate 301, respectively.

[0030] The swaying assembly 22 includes a swaying spring 221 fixedly connected to the top of the chassis 201, and a T-shaped long rod 222 fixedly connected to the top of the swaying spring 221; The top of the T-shaped rod 222 is spherical; By leveraging the elasticity of the swing spring 221, the T-shaped rod 222 can swing and strike the tops of multiple fixed rings 211 as the gas flows upward through the filter cylinder 4, causing the filter cylinder 4 to vibrate. During the swinging process of the T-shaped rod 222, the bottom of the T-shaped rod 222, which is deflected, will randomly strike the top of multiple second fixed rods 212.

[0031] A sliding disk 301 located between two fixed rings 211 is slidably connected to the surface of a plurality of second fixed rods 212; The auxiliary component 31 includes a guide frame 311 fixedly connected to the top of the sliding disk 301, and a second connecting frame 312 is slidably connected inside the guide frame 311; The bottom of the second connecting frame 312 contacts the stepped end face of the T-shaped long rod 222; When the T-shaped long rod 222 swings through the rocking spring 221, the swing of the T-shaped long rod 222 will periodically push the bottom of the second connecting frame 312, causing the second connecting frame 312 to slide up and down reciprocally. Several curved rings 313 are fixedly connected to the outer surface of the second connecting frame 312, and the curved rings 313 are located at the bottom of the conical ring 122; During the downward movement of the guide frame 311, the guide frame 311 will drive the second connecting frame 312 to move down synchronously. When the top of the guide frame 311 moves down, the inner wall of the top of the guide frame 311 will press down on the inner wall of the bottom of the T-shaped long rod 222 through the bottom of the second connecting frame 312.

[0032] A dust removal method for a dust removal device used in lock bar spraying, the dust removal device for lock bar spraying, the method comprising the following steps: S1: Placement and installation: The workers will install the top of the multiple blocking rings 112 to the bottom inner wall of the spring plate 113 with bolts. Then, the base plate 201 will be placed inside the filter cylinder 4, and the base plate 201 will be securely connected to the filter cylinder 4 from the bottom with bolts. S2: Suction Filter: When the suction fan is turned on, a negative pressure airflow is formed between the first connecting frame 111 and the main body 1, and the external gas is drawn in through the filter cartridge 4. S3: Dust Removal: Dust in the gas will be trapped by the filter cartridge 4, while clean gas will pass through the filter cartridge 4 and be discharged out through the air outlet pipe 101.

[0033] In use, the operator first bolts the tops of the multiple blocking rings 112 to the bottom inner wall of the spring plate 113. Then, the base 201 is placed inside the filter cylinder 4, and the base 201 is securely connected to the filter cylinder 4 from the bottom using bolts. After that, the top of the filter cylinder 4 is installed to the bottom of the spring plate 113. The air outlet pipe 101 is then connected to the external suction fan, and the air outlet pipe of the external pulse backflushing device is extended into the interior of the filter cylinder 4. The suction fan is then started, and when the suction fan is working, a negative pressure is formed between the first connecting frame 111 and the main body 1. The air flows through the filter cartridge 4 to draw in external gas. When the locking rod is sprayed at the spraying station, the dust-laden gas generated is sent into the main body 1. Under negative pressure, the dust-laden gas passes through the filter cartridge 4 from the outside to the inside. At this time, the dust in the gas is trapped by the filter cartridge 4, while the clean gas passes through the filter cartridge 4 and is discharged to the outside through the air outlet pipe 101. At the same time, after the set time of the external pulse backflushing equipment is reached, the pulse backflushing equipment will blow out pulse airflow into the filter cartridge 4, causing the dust attached to the surface of the filter cartridge 4 to fall downward, thereby completing the dust removal purpose when spraying the locking rod.

[0034] As the airflow entering the filter cartridge 4 continues to flow upwards, the airflow impacts the T-shaped rod 222, causing it to swing irregularly under the elasticity of the spring 221. During this swinging motion, the bottom of the T-shaped rod 222, which is deflected, irregularly strikes the tops of multiple second fixed rods 212. The swinging motion of the T-shaped rod 222 and the impact on the second fixed rods 212 are transmitted to the body of the filter cartridge 4. This causes the filter cartridge 4 to generate continuous small-amplitude vibrations during the filtration of dust-laden gas through the elasticity of the spring disc 113. The continuous vibration of the filter cartridge 4 during dust filtration causes the loose powder that has just adhered to the surface of the filter cartridge 4 to fall off due to the vibration, inhibiting the formation of a dense dust layer on the surface of the filter cartridge 4. This ensures the backflushing intensity of the subsequent pulse backflushing airflow inside the filter cartridge 4, making it easier for the pulse backflushing gas to clean the dust on the surface of the filter cartridge 4 and improving the dust removal efficiency during the spraying process.

[0035] When the T-shaped rod 222 is impacted by the airflow and swings due to the elasticity of the rocking spring 221, the inner wall of the bottom of the T-shaped rod 222 will periodically push the bottom of the second connecting frame 312 during the swing. At this time, the second connecting frame 312 will swing with the T-shaped rod 222, causing multiple curved rings 313 to slide up and down periodically. When the curved rings 313 slide downward, they will be in the area between the two second fixed rods 212. At this time, some of the gas entering the inner cavity of the filter cylinder 4 from the outside of the filter cylinder 4 will be deflected under the guiding effect of the central concave arc surface of the curved rings 313. The deflected airflow will form a blowing force in the inner cavity of the filter cylinder 4, reducing the dust that is shaken off the surface of the filter cylinder 4 and being re-adsorbed back onto the surface of the filter cylinder 4, thereby affecting the dust falling off the surface of the filter cylinder 4, ensuring the permeability of the filter cylinder 4 when filtering dust, and further enhancing the dust removal efficiency of the filter cylinder 4.

[0036] When the external pulse backflushing device blows pulsed airflow into the filter cartridge 4, the pulsed airflow will instantly exert a large downward pressure on the top of the guide frame 311, causing the guide frame 311 to drive the sliding disk 301 to slide downward. At the same time, during the downward movement of the guide frame 311, the guide frame 311 will drive the second connecting frame 312 to move downward synchronously. When the top of the guide frame 311 moves downward, the inner wall of the top of the guide frame 311 will press down on the inner wall of the bottom of the T-shaped long rod 222 through the bottom of the second connecting frame 312, so that the T-shaped long rod 222 maintains a relatively vertical and stable state in the pulsed gas. This prevents the T-shaped long rod 222 from swinging significantly under the impact of a strong pulsed airflow and forming a relatively violent alternating impact on the inner wall of the filter cartridge 4, which could cause damage and deformation inside the filter cartridge 4. This ensures the continuity of the filter cartridge 4 in filtering dust and the integrity of the surface of the filter cartridge 4, and improves the stability of the dust removal process.

[0037] When the pulsed backflushing gas forms inside the filter cartridge 4 and pushes the guide frame 311 downward, the guide frame 311 will drive the sliding disk 301, causing the sliding disk 301 to bear instantaneous downward pressure between the two fixed rings 211. As the sliding disk 301 moves downward rapidly, it will compress the gas between the two fixed rings 211, causing the gas to be rapidly ejected outward through multiple annular grooves on the surface of the first fixed ring 211 in the bottom area of ​​the filter cartridge 4. At this time, the airflow ejected outward from inside the filter cartridge 4 can ensure the consistency of the backflushing gas from the inside to the outside of the filter cartridge 4 and reduce the impact of the pulsed airflow inside the filter cartridge 4. After the pulsed airflow impacts the guide frame 311, it is difficult to quickly backflush outward from the bottom area inside the filter cartridge 4. This ensures the uniformity of the backflush from inside the filter cartridge 4. At the same time, when the sliding disc 301 drives the second connecting frame 312 to move down quickly, the second connecting frame 312 will drive multiple curved rings 313 to slide down. After the pulsed airflow ejected from inside the filter cartridge impacts the inner wall of the filter cartridge 4, it is deflected and guided by the curved arc surface of the multiple curved rings 313, maintaining the penetration intensity of the backflush airflow on the inner wall of the filter cartridge 4. This improves the uniformity of backflush cleaning of dust on the surface of the filter cartridge 4, while further enhancing the backflush intensity of dust.

[0038] The filter cartridge 4 can be disassembled and assembled with its internal moving mechanism 2 and guiding mechanism 3 via bolts, facilitating regular inspection, maintenance and replacement.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal device for lock rod spraying, comprising a main body (1), wherein an air outlet pipe (101) is fixedly connected to the right side of the main body (1), and a first connecting frame (111) is fixedly connected inside the main body (1), wherein a plurality of filter cylinders (4) are provided at the bottom of the first connecting frame (111), characterized in that, Also includes: The active mechanism (2) is installed inside the filter cartridge (4) and is used to apply vibration force to the filter cartridge (4) with the flow of gas during the dust removal process; The active mechanism (2) includes a chassis (201) bolted to the inner wall of the bottom of the filter cylinder (4). The top of the chassis (201) is fixedly connected to two fixing rings (211). The outer surface of the first fixing ring (211) is provided with several annular grooves. A guiding mechanism (3) is installed on top of a fixed ring (211) to limit excessive oscillation of the moving mechanism (2) during pulse backflush. The guiding mechanism (3) includes a sliding disk (301) that is slidably connected between two fixed rings (211).

2. The dust removal equipment for lock rod spraying according to claim 1, characterized in that: The main body (1) includes: A connecting component (11) is installed at the bottom of the first connecting frame (111) to ensure the installation position of the filter cartridge (4) during dust removal; Fixing component (12) is installed at the bottom of connecting component (11).

3. The dust removal equipment for lock rod spraying according to claim 2, characterized in that: The activity mechanism (2) also includes: A limiting component (21) is installed on the top of the chassis (201) to ensure the stability of the sliding disk (301) sliding between the two fixed rings (211); A swaying assembly (22) is mounted on top of the chassis (201) to generate a vibration force inside the filter cartridge (4) as gas passes through it.

4. The dust removal equipment for lock rod spraying according to claim 3, characterized in that: The guiding mechanism (3) also includes: An auxiliary component (31) is installed on top of the sliding disc (301) to reduce the amount of dust that falls off and is re-adsorbed onto the surface of the filter cartridge (4) when the filter cartridge (4) vibrates.

5. A dust removal device for lock rod spraying according to claim 2, characterized in that: The connecting assembly (11) includes four blocking rings (112) fixedly connected to the bottom of the first connecting frame (111), and a spring disc (113) is fixedly connected to the top inner wall of the blocking rings (112). The top of the filter cylinder (4) is bolted to the bottom of the spring disc (113).

6. The dust removal equipment for lock rod spraying according to claim 5, characterized in that: The fixing assembly (12) includes three first fixing rods (121) bolted to the inner wall of the bottom of the spring disc (113). Several conical rings (122) are fixedly connected to the outer surface of the three first fixing rods (121) inside the filter cylinder (4).

7. A dust removal device for lock rod spraying according to claim 4, characterized in that: The limiting component (21) includes a plurality of second fixing rods (212) fixedly connected to the top of the chassis (201), wherein two of the second fixing rods (212) are slidably connected to a return spring on their outer surfaces.

8. A dust removal device for lock rod spraying according to claim 3, characterized in that: The swaying assembly (22) includes a swaying spring (221) fixedly connected to the top of the chassis (201), and a T-shaped long rod (222) is fixedly connected to the top of the swaying spring (221). The top of the T-shaped rod (222) is spherical.

9. A dust removal device for lock rod spraying according to claim 7, characterized in that: The sliding disk (301) located between the two fixed rings (211) is slidably connected to the surface of a plurality of second fixed rods (212); The auxiliary component (31) includes a guide frame (311) fixedly connected to the top of the sliding disk (301), and a second connecting frame (312) is slidably connected inside the guide frame (311). The bottom of the second connecting frame (312) is in contact with the stepped end face of the T-shaped long rod (222); The outer surface of the second connecting frame (312) is fixedly connected with a number of curved rings (313), and the curved rings (313) are located at the bottom of the conical ring (122).

10. A dust removal method for a dust removal device used in lock rod spraying, characterized in that: The method using the dust removal equipment for lock bar spraying as described in claim 5 includes the following steps: S1: Placement and installation: The workers will install the top of the multiple blocking rings (112) to the bottom inner wall of the spring plate (113) with bolts, and then place the chassis (201) inside the filter cylinder (4) and securely connect the chassis (201) and the filter cylinder (4) from the bottom of the filter cylinder (4) with bolts. S2: Inhalation filtration: Start the suction fan. When the suction fan is working, it will form a negative pressure airflow between the first connecting frame (111) and the main body (1), and draw in the external gas through the filter cylinder (4); S3: Dust Removal: Dust in the gas will be trapped by the filter cartridge (4), while clean gas will pass through the filter cartridge (4) and be discharged out through the air outlet pipe (101).

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