Air purification device for carbon steel joint machining

Abstract

The invention relates to the technical field of purification devices, in particular to an air purification device for carbon steel connector machining, which is characterized in that an outer dust suction pipe is arranged on an outer machine body, and an inner connecting air pipe is arranged in the outer machine body; a vent groove is formed in the separation box; the dust removal box has the beneficial effects that waste gas generated in the machining process is discharged into the dust removal box main body through the outer dust suction pipe and the inner connecting gas pipe, waste residues in the waste gas are filtered through the filter plate, the waste gas can be filtered for the first time, large-particle impurities in the waste gas are filtered, and the filtered waste gas is filtered through the filter element; by means of the smoke multi-stage filtering device, smoke multi-stage filtering is achieved, the service life of the filter element is prolonged, the personnel maintenance frequency is reduced, waste chips on the filter plate can be sucked in cooperation with a first sucking pump, a hard connecting pipe, a soft connecting pipe and a dust suction opening formed in an inner dust suction pipe, the waste chips are discharged into a storage box installed in the storage box body, the filtering effect of the filter plate is ensured, and the service life of the filter element is prolonged. And automatic cleaning is completed to facilitate personnel use.

Description

Technical Field

[0001] The invention relates to the technical field of purification devices, in particular to an air purification device for carbon steel joint processing. Background Art

[0002] During the processing of carbon steel joints, impurities such as smoke and dust will be generated. The smoke and dust generated contain a large amount of harmful substances. If the smoke and dust are not treated, the smoke and dust generated will endanger the health of the workers. An air purification device is required to purify the smoke and dust generated during the processing of carbon steel joints.

[0003] In the prior art, negative pressure is generated by the fan on the air purification device, and the fume generated at the carbon steel joint processing site is absorbed through a pipe. A cylindrical filter element is installed in the air purification device for carbon steel joint processing to filter and purify harmful substances in the fume in the inhalation device.

[0004] However, the traditional air purification device directly filters the flue gas in the suction device through the cylindrical filter element. There will also be a large amount of waste residue in the flue gas inhaled into the device. The waste residue in the suction device will be sucked into the cylindrical filter element, which will cause the cylindrical filter element to be blocked, thereby reducing the service life of the cylindrical filter element. Personnel need to maintain the device frequently, which is inconvenient for personnel to use. For this reason, the present invention proposes an air purification device for carbon steel joint processing to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide an air purification device for carbon steel joint processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air purification device for carbon steel joint processing, comprising: an external dust suction pipe, the external dust suction pipe is arranged on an outer body, a filter element is arranged in the outer body, the outer body is provided with an internal connecting air pipe, the internal connecting air pipe is connected with the dust removal box body, a pneumatic hammer, a filter plate and a fixing block are provided in the dust removal box body, a slide groove is provided on the lower surface of the fixing block, a connecting block is clamped in the slide groove for connection, a first electric push rod is provided on the side of the connecting block, the telescopic end of the first electric push rod is connected with the shovel plate, the shovel plate is provided with an internal dust suction pipe, a plurality of dust suction ports are provided on the side of the internal dust suction pipe, a soft connecting pipe is connected to the internal dust suction pipe, the other end of the soft connecting pipe is connected to the hard connecting pipe, the hard connecting pipe is connected to the suction end of the first suction pump, and the air outlet end of the first suction pump is communicated with the storage box body through a pipe;

[0007] The partition box is provided with a ventilation groove, the partition box is provided with a second electric push rod, the telescopic end of the second electric push rod is connected to the connecting plate, and a sealing gasket is provided on the connecting plate.

[0008] Preferably, the sealing gasket is a square plate structure, the sealing gasket is fixedly connected to the connecting plate, the connecting plate is fixedly connected to the telescopic end of the second electric push rod, the second electric push rod is fixedly mounted on the partition box, and a ventilation groove is provided on the partition box, and the ventilation groove is a square groove structure.

[0009] Preferably, the filter element is fixedly mounted on the outer body by bolts, one end of the filter element is arranged in a partition box, the partition box is fixedly mounted in the outer body, and a side mounting plate is fixedly mounted on the side of the outer body by bolts.

[0010] Preferably, the external dust suction pipe is fixedly installed on the outer body, and the external dust suction pipe is connected to the internal connecting air pipe fixedly installed in the outer body. The other end of the internal connecting air pipe is fixedly installed on the dust removal box body, and the internal connecting air pipe is connected to the inner cavity of the dust removal box body. The dust removal box body is fixedly installed in the outer body.

[0011] Preferably, a storage box body is fixedly installed in the outer body, a storage box is fixedly installed on the storage box body by bolts, a number of storage box air outlets are opened on the storage box body, the storage box air outlets are square groove-shaped structures, a baffle is arranged below the storage box air outlet, the baffle is an "L"-shaped plate structure, and the baffle is fixedly connected to the storage box body.

[0012] Preferably, a pneumatic hammer is fixedly installed in the dust removal box body, the striking end of the pneumatic hammer contacts the lower surface of the filter plate, the filter plate is fixedly installed in the dust removal box body, and a fixed block is fixedly connected to the inner side of the dust removal box body. The fixed block has a square plate-shaped structure, and a slide groove is provided on the bottom surface of the fixed block, and the slide groove has a square groove-shaped structure.

[0013] Preferably, a screw is provided in the slide groove, one end of the screw is rotatably connected to the fixed block, the screw is threadedly connected to the threaded hole opened on the connecting block, and the other end of the screw is fixedly connected to the transmission shaft of the drive motor, and the drive motor is fixedly installed on the side of the outer body.

[0014] Preferably, the connecting block can slide along the slide groove, the connecting block is a square plate structure, an accordion-type protective cover is fixedly mounted on the connecting block, and the other end of the accordion-type protective cover is fixedly mounted on the fixed block.

[0015] Preferably, a first electric push rod is fixedly connected to the side of the connecting block, and the telescopic end of the first electric push rod is fixedly connected to the shovel plate. The shovel plate has a trapezoidal plate structure, and an inner dust suction pipe is fixedly installed on the shovel plate. The inner dust suction pipe is provided with a plurality of dust suction ports, and the dust suction ports are circular hole structures.

[0016] Preferably, a soft connecting tube is fixedly connected to the inner dust suction tube, the soft connecting tube is communicated with the inner dust suction tube, and the other end of the soft connecting tube is fixedly connected to the hard connecting tube, the soft connecting tube is communicated with the hard connecting tube, and the other end of the hard connecting tube is fixedly installed on the suction end of the first suction pump.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes an air purification device for carbon steel joint processing. The exhaust gas generated during the processing is discharged into the dust removal box main body through an external dust suction pipe and an internal connecting air pipe, and the waste residue in the exhaust gas is filtered through the filter plate. The exhaust gas can be filtered for the first time to filter large particles of impurities in the exhaust gas. The filtered exhaust gas is then filtered through the filter element. The above method realizes multi-stage filtration of flue gas, extends the service life of the filter element, and reduces the frequency of personnel maintenance. In combination with the first vacuum pump, the hard connecting pipe, the soft connecting pipe and the dust suction port opened on the inner vacuum pipe, the waste debris on the filter plate can be sucked up, and the waste gas is discharged into the storage box installed in the storage box main body through the pipe through the air outlet end of the first vacuum pump, thereby ensuring the filtering effect of the filter plate, completing self-cleaning and facilitating personnel use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the device of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation of the present invention during normal use;

[0021] Figure 3 Schematic diagram of the internal structure of the device of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of a local structure of the device of the present invention;

[0023] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0024] Figure 6 for Figure 4 The enlarged structural diagram at B in the middle;

[0025] Figure 7 It is a schematic cross-sectional view of part of the structure of the device of the present invention;

[0026] Figure 8 for Figure 7 The enlarged structural diagram at C in the middle;

[0027] Figure 9 for Figure 7 Enlarged structural diagram at point D in the middle.

[0028] In the figure: 1. outer body; 2. outer dust suction pipe; 3. side mounting plate; 4. inner connecting air pipe; 5. dust collector box body; 6. dust collector box mounting plate; 7. filter plate; 8. shovel plate; 9. inner dust suction pipe; 10. dust suction port; 11. first electric push rod; 12. accordion-type protective cover; 13. connecting block; 14. slide; 15. screw; 16. soft connecting pipe; 17. pneumatic hammer; 18. dust collector box air outlet; 19. hard connecting pipe; 20. first vacuum pump; 21. storage box body; 22. storage box air outlet; 23. storage box; 24. baffle; 25. drive motor; 26. filter element; 27. partition box; 28. ventilation groove; 29. sealing gasket; 30. connecting plate; 31. connecting box; 32. second vacuum pump; 33. fixing block; 34. second electric push rod. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1 to 9 The present invention provides a technical solution: an air purification device for carbon steel joint processing, comprising: an external dust suction pipe 2, the external dust suction pipe 2 is arranged on the outer body 1, a filter element 26 is arranged in the outer body 1, an internal connecting air pipe 4 is arranged in the outer body 1, the internal connecting air pipe 4 is connected to the dust removal box body 5, a pneumatic percussion hammer 17, a filter plate 7 and a fixed block 33 are arranged in the dust removal box body 5, a slide groove 14 is opened on the lower surface of the fixed block 33, a connecting block 13 is connected with the slide groove 14, a first electric push rod 11 is arranged on the side of the connecting block 13, and the telescopic end of the first electric push rod 11 is connected to the shovel plate 8 Connection, an inner dust suction pipe 9 is provided on the shovel plate 8, and a plurality of dust suction ports 10 are opened on the side of the inner dust suction pipe 9. A soft connecting pipe 16 is connected to the inner dust suction pipe 9, and the other end of the soft connecting pipe 16 is connected to the hard connecting pipe 19. The hard connecting pipe 19 is connected to the suction end of the first suction pump 20, and the air outlet end of the first suction pump 20 is connected to the storage box body 21 through a pipe; a partition box 27, a ventilation groove 28 is opened on the partition box 27, and a second electric push rod 34 is provided on the partition box 27. The telescopic end of the second electric push rod 34 is connected to the connecting plate 30, and a sealing gasket 29 is provided on the connecting plate 30;

[0032] During specific use, the external dust suction pipe 2 cooperates with the internal connecting air pipe 4 to suck the waste gas generated during the processing into the dust removal box body 5, and filters the waste residue in the air through the filter plate 7 to prevent the waste residue generated during the processing from flying directly into the filter element 26, thereby causing the filter element 26 to be blocked and affecting the service life of the filter element 26, thereby improving the use effect of the device and reducing the frequency of personnel maintenance. In the process, the soft connecting pipe 16 cooperates with the hard connecting pipe 19 and the dust suction port 10 opened on the internal dust suction pipe 9 to absorb waste debris, and discharges it into the storage box 23 installed in the storage box body 21 through the pipe through the air outlet end of the first vacuum pump 20. The device can perform self-cleaning, which is convenient for personnel to use.

[0033] Example 2

[0034] On the basis of Example 1, in order to improve the use effect of the device, an external dust suction pipe 2 is provided. The external dust suction pipe 2 is fixedly mounted on the outer body 1. The external dust suction pipe 2 is communicated with the internal connecting air pipe 4 fixedly mounted in the outer body 1. The other end of the internal connecting air pipe 4 is fixedly mounted on the dust removal box body 5. The internal connecting air pipe 4 is communicated with the inner cavity of the dust removal box body 5. The dust removal box body 5 is fixedly mounted in the outer body 1. The connecting box 31 is a square box-shaped structure. The connecting box 31 is located at the dust removal box air outlet 18 opened on the side of the dust removal box body 5. The second air pump 32 is connected to the connection box 31 through a pipe. A side mounting plate 3 is installed on the side of the outer body 1 by bolts. Personnel can remove the side mounting plate 3 to maintain the components inside the outer body 1, which is convenient for personnel to use. By starting the second air pump 32, in conjunction with the connection box 31 and the dust box air outlet 18 opened on the side of the dust box body 5, the air in the dust box body 5 can be extracted. In conjunction with the external dust suction pipe 2 and the internal connecting air pipe 4, the exhaust gas generated during the processing of the carbon steel joint can be extracted;

[0035] The dust collecting box body 5 is fixedly installed with a pneumatic knocking hammer 17, and the knocking end of the pneumatic knocking hammer 17 contacts the lower surface of the filter plate 7, and the filter plate 7 is fixedly installed in the dust collecting box body 5. The inner side of the dust collecting box body 5 is fixedly connected with a fixing block 33, which has a square plate-shaped structure. The bottom surface of the fixing block 33 is provided with a slide groove 14, which has a square groove-shaped structure. The dust collecting box mounting plate 6 is installed on the dust collecting box body 5 by bolts. The personnel can disassemble the dust collecting box mounting plate 6 and maintain the components in the dust collecting box body 5. Cooperate with the filter plate 7 to filter the waste residue in the air, so as to avoid the waste residue generated during the processing directly flying into the filter element 26, thereby causing the filter element 26 to be blocked and affecting the service life of the filter element 26, improving the use effect of the device, reducing the frequency of personnel maintenance, and starting the pneumatic knocking hammer 17 to knock the filter plate 7, so that the filter plate 7 vibrates, so that the waste debris blocked in the filter holes on the filter plate 7 is ejected;

[0036] A first electric push rod 11 is fixedly connected to the side of the connecting block 13. The telescopic end of the first electric push rod 11 is fixedly connected to the shovel plate 8. The shovel plate 8 has a trapezoidal plate structure. An inner dust suction pipe 9 is fixedly installed on the shovel plate 8. The inner dust suction pipe 9 is provided with a plurality of dust suction ports 10. The dust suction ports 10 are circular hole-shaped structures. When the first electric push rod 11 is started, the shovel plate 8 is pushed downward to make the shovel plate 8 contact the upper surface of the filter plate 7.

[0037] A screw 15 is provided in the chute 14, one end of the screw 15 is rotatably connected to the fixed block 33, the screw 15 is threadedly connected to the threaded hole provided on the connecting block 13, and the other end of the screw 15 is fixedly connected to the transmission shaft of the drive motor 25, which is fixedly mounted on the side of the outer body 1. When the drive motor 25 is started, the screw 15 is driven to rotate, so that the screw 15 rotates along the threaded hole provided on the connecting block 13, so that the connecting block 13 slides along the chute 14, so that the shovel plate 8 and the inner dust suction pipe 9 follow the movement, and the waste debris on the filter plate 7 is shoveled by the shovel plate 8;

[0038] A soft connecting tube 16 is fixedly connected to the inner dust suction tube 9, and the soft connecting tube 16 is communicated with the inner dust suction tube 9, and the other end of the soft connecting tube 16 is fixedly connected to the hard connecting tube 19, and the soft connecting tube 16 is communicated with the hard connecting tube 19. The other end of the hard connecting tube 19 is fixedly installed on the suction end of the first suction pump 20, and cooperates with the first suction pump 20 to extract the air in the hard connecting tube 19 and the soft connecting tube 16, and cooperates with the suction port 10 opened on the inner dust suction tube 9 to absorb waste debris, and discharges it into the storage box 23 installed in the storage box body 21 through the tube through the air outlet end of the first suction pump 20;

[0039] A storage box body 21 is fixedly installed in the outer body 1, and a storage box 23 is fixedly installed on the storage box body 21 by bolts. A number of storage box air outlets 22 are opened on the storage box body 21. The storage box air outlet 22 is a square groove structure. A baffle 24 is provided below the storage box air outlet 22. The baffle 24 is an "L"-shaped plate structure. The baffle 24 is fixedly connected to the storage box body 21. The baffle 24 is provided below the storage box air outlet 22 to block waste chips and prevent them from being discharged through the storage box air outlet 22. The storage box air outlet 22 is a square groove structure. The exhaust gas is discharged through the storage box air outlet 22, enters the partition box 27, is filtered by the filter element 26, and then is discharged.

[0040] Example 3

[0041] On the basis of the second embodiment, a connecting block 13 is provided for the convenience of personnel use. The connecting block 13 can slide along the slide 14. The connecting block 13 is a square plate structure. An accordion-type protective cover 12 is fixedly installed on the connecting block 13. The other end of the accordion-type protective cover 12 is fixedly installed on the fixed block 33. By providing the accordion-type protective cover 12, the accordion-type protective cover 12 is provided at the slide 14. The accordion-type protective cover 12 can protect the screw 15 in the slide 14, preventing foreign matter from adhering to the screw 15 and thus affecting the transmission of the screw 15, thereby improving the reliability of the device;

[0042] The sealing gasket 29 is in a square plate-like structure. The sealing gasket 29 is fixedly connected to the connecting plate 30. The connecting plate 30 is fixedly connected to the telescopic end of the second electric push rod 34. The second electric push rod 34 is fixedly mounted on the partition box 27. A ventilation groove 28 is provided on the partition box 27. The ventilation groove 28 is in a square groove-like structure. The connecting plate 30 is composed of a vertical square plate and another horizontal square plate. The sealing gasket 29 contacts the upper surface of the partition box 27. The second electric push rod 34 is started to push the connecting plate 30 to move, so that the connecting plate 30 and the sealing gasket 29 move to the top of the ventilation groove 28. The ventilation groove 28 is blocked by the sealing gasket 29 to prevent gas from entering the current partition box 27.

[0043] The filter element 26 is fixedly installed on the outer body 1 by bolts, and one end of the filter element 26 is arranged in the partition box 27. The partition box 27 is fixedly installed in the outer body 1. The side of the outer body 1 is fixedly installed with a side mounting plate 3 by bolts. The filter element 26 involved in the device is a filter cartridge used in the smoke purification device. It is a prior art and will not be described in detail here. Personnel can remove the filter element 26 in the current partition box 27 and replace it with a new filter element 26. At this time, the filter element 26 in the other partition box 27 is working normally during the whole process. Even during the process of replacing the new filter element 26, the device can still work normally, which is convenient for personnel to use and improves the reliability of the device.

[0044] Working principle: During actual use, the exhaust gas generated during the processing is discharged into the dust removal box body 5 through the external dust suction pipe 2 and the internal connecting air pipe 4, and the waste residue in the exhaust gas is filtered through the filter plate 7, which can filter the exhaust gas for the first time, and filter the large particles of impurities in the exhaust gas. The filtered exhaust gas is then filtered through the filter element 26, and the multi-stage filtration of the flue gas is achieved through the above, which extends the service life of the filter element 26 and reduces the frequency of personnel maintenance. In addition, the first vacuum pump 20, the hard connecting pipe 19, the soft connecting pipe 16 and the dust suction port 10 opened on the internal vacuum pipe 9 can absorb the waste debris on the filter plate 7, and discharge it into the storage box 23 installed in the storage box body 21 through the pipe through the air outlet end of the first vacuum pump 20, thereby ensuring the filtering effect of the filter plate 7, completing self-cleaning and facilitating personnel use.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An air purification device for carbon steel joint processing, comprising: The outer dust suction pipe (2) is arranged on the outer body (1), and a filter element (26) is arranged in the outer body (1), characterized in that: an inner connecting air pipe (4) is arranged in the outer body (1), the inner connecting air pipe (4) is connected to the dust removal box body (5), and a pneumatic percussion hammer (17), a filter plate (7) and a fixing block (33) are arranged in the dust removal box body (5), a slide groove (14) is opened on the lower surface of the fixing block (33), a connecting block (13) is connected in the slide groove (14), and the side of the connecting block (13) is provided with a pneumatic hammer (17), a filter plate (7) and a fixing block (33). The surface is provided with a first electric push rod (11), the telescopic end of the first electric push rod (11) is connected to the shovel plate (8), the shovel plate (8) is provided with an inner dust suction pipe (9), the side of the inner dust suction pipe (9) is provided with a plurality of dust suction ports (10), the inner dust suction pipe (9) is connected with a soft connecting pipe (16), the other end of the soft connecting pipe (16) is connected to a hard connecting pipe (19), the hard connecting pipe (19) is connected to the suction end of the first suction pump (20), and the air outlet end of the first suction pump (20) is communicated with the storage box body (21) through a pipe; A partition box (27) is provided with a ventilation groove (28). A second electric push rod (34) is provided on the partition box (27). The telescopic end of the second electric push rod (34) is connected to the connecting plate (30). A sealing gasket (29) is provided on the connecting plate (30).

2. The air purification device for carbon steel joint processing according to claim 1, characterized in that: The sealing gasket (29) is in a square plate-like structure. The sealing gasket (29) is fixedly connected to the connecting plate (30). The connecting plate (30) is fixedly connected to the telescopic end of the second electric push rod (34). The second electric push rod (34) is fixedly mounted on the partition box (27). The partition box (27) is provided with a ventilation groove (28). The ventilation groove (28) is in a square groove-like structure.

3. The air purification device for carbon steel joint processing according to claim 1, characterized in that: The filter element (26) is fixedly mounted on the outer body (1) by means of bolts. One end of the filter element (26) is arranged in a partition box (27). The partition box (27) is fixedly mounted in the outer body (1). A side mounting plate (3) is fixedly mounted on the side of the outer body (1) by means of bolts.

4. The air purification device for carbon steel joint processing according to claim 1, characterized in that: The external dust suction pipe (2) is fixedly mounted on the external body (1), the external dust suction pipe (2) is communicated with an internal connecting air pipe (4) fixedly mounted inside the external body (1), the other end of the internal connecting air pipe (4) is fixedly mounted on the dust removal box body (5), the internal connecting air pipe (4) is communicated with the inner cavity of the dust removal box body (5), and the dust removal box body (5) is fixedly mounted inside the external body (1).

5. The air purification device for carbon steel joint processing according to claim 1, characterized in that: A storage box body (21) is fixedly installed in the outer body (1), a storage box (23) is fixedly installed on the storage box body (21) by means of bolts, a plurality of storage box air outlets (22) are provided on the storage box body (21), the storage box air outlets (22) are in a square groove-shaped structure, a baffle (24) is provided below the storage box air outlet (22), the baffle (24) is in an "L"-shaped plate-shaped structure, and the baffle (24) is fixedly connected to the storage box body (21).

6. The air purification device for carbon steel joint processing according to claim 1, characterized in that: A pneumatic knocking hammer (17) is fixedly installed in the dust removal box body (5), and the knocking end of the pneumatic knocking hammer (17) contacts the lower surface of the filter plate (7). The filter plate (7) is fixedly installed in the dust removal box body (5). A fixed block (33) is fixedly connected to the inner side of the dust removal box body (5). The fixed block (33) is in a square plate-shaped structure. A slide groove (14) is provided on the bottom surface of the fixed block (33). The slide groove (14) is in a square groove-shaped structure.

7. The air purification device for carbon steel joint processing according to claim 1, characterized in that: A screw rod (15) is provided in the slide groove (14), one end of the screw rod (15) is rotatably connected to the fixed block (33), the screw rod (15) is threadedly connected to a threaded hole provided on the connecting block (13), and the other end of the screw rod (15) is fixedly connected to a transmission shaft of a drive motor (25), and the drive motor (25) is fixedly mounted on the side of the outer body (1).

8. The air purification device for carbon steel joint processing according to claim 1, characterized in that: The connecting block (13) can slide along the slide groove (14). The connecting block (13) is in a square plate structure. An accordion-type protective cover (12) is fixedly mounted on the connecting block (13). The other end of the accordion-type protective cover (12) is fixedly mounted on the fixed block (33).

9. The air purification device for carbon steel joint processing according to claim 1, characterized in that: The side of the connecting block (13) is fixedly connected to a first electric push rod (11), and the telescopic end of the first electric push rod (11) is fixedly connected to a shovel plate (8), which is a trapezoidal plate structure. An inner dust suction pipe (9) is fixedly installed on the shovel plate (8), and a plurality of dust suction ports (10) are opened on the inner dust suction pipe (9), and the dust suction ports (10) are circular hole structures.

10. The air purification device for carbon steel joint processing according to claim 1, characterized in that: A soft connecting pipe (16) is fixedly connected to the inner dust suction pipe (9), the soft connecting pipe (16) is communicated with the inner dust suction pipe (9), and the other end of the soft connecting pipe (16) is fixedly connected to a hard connecting pipe (19), the soft connecting pipe (16) is communicated with the hard connecting pipe (19), and the other end of the hard connecting pipe (19) is fixedly mounted on the air extraction end of the first air extraction pump (20).

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