Dedusting and filtering treatment device for argon recovery

Abstract

The invention relates to the technical field of dust removal and filtration, and particularly discloses a dust removal and filtration treatment device for argon recovery, the dust removal and filtration treatment device comprises a gas inlet pipe, the right end of the gas inlet pipe is fixedly provided with an H-shaped pipeline, the center of the right end of the H-shaped pipeline is fixedly provided with a gas outlet pipe, and the lower end of the gas outlet pipe is fixedly provided with an outer sleeve box; an upper partition plate is fixedly mounted at the upper end of the interior of the outer sleeve box; a through hole is formed from the upper end face to the lower end face of the upper partition plate, a circular ring is fixedly installed on the inner circumferential face of the through hole, and a gear ring is rotationally installed in the circular ring. In this way, argon in the outer sleeve box can penetrate through the vent holes to enter the sleeve and then be filtered by the HEPA filter. In the overhauling process, the single HEPA filter can be started to work according to the situation, and the other HEPA filters can be taken down in a rotating mode; in this way, it is guaranteed that the device can still work in the overhauling process.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal and filtration, and in particular to a dust removal and filtration processing device for argon gas recovery. Background Art

[0002] Argon is an inert gas with high density and low thermal conductivity. Therefore, general cemented carbide manufacturers and manufacturers of high-quality precision ceramic products use high-purity argon for dewaxing (degumming), pressure sintering and cooling processes. As a protective gas, high-purity argon can greatly improve the quality of products. In addition, a large amount of argon is also needed in argon arc welding. With the improvement of industrial level, the demand for high-purity argon is also increasing.

[0003] The amount of argon gas emitted by various argon-using equipment is increasing, resulting in an increase in wasted resources. Moreover, since the argon gas emitted after high-purity argon gas is sintered under high pressure contains trace amounts of impurities, carbon dust, carbon monoxide and carbon dioxide, it causes great environmental pollution. In order to solve the above problems, it is necessary to recycle and reuse the emitted argon gas.

[0004] At present, most of the argon recovery in the market adopts the dust removal box with an integral structure for operation, such as the DMC-24 and DMC-36 dust removal boxes. During the operation of this type of dust removal box, such as Fig.12 As shown, this results in the dust removal box being unable to operate during the maintenance process, thus affecting the efficiency of the factory and the recovery of argon gas; secondly, since the internal structure of the traditional dust removal box is mostly in a connected state, the traditional dust removal box cannot adjust the pipeline according to the amount of argon gas, making all the filter pipelines in operation. This method not only fails to improve work efficiency, but also reduces the service life of the filter cartridge.

[0005] Therefore, in order to solve the problem of being able to operate during the maintenance process and to be able to use a corresponding number of filter cartridges according to the situation, we specially propose a dust removal and filtration processing device for argon gas recovery. Summary of the invention

[0006] The purpose of the present invention is to provide a dust removal and filtering device for argon gas recovery to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a dust removal and filtering processing device for argon recovery, comprising an air inlet pipe, an H-shaped pipe is fixedly installed at the right end of the air inlet pipe, an air outlet pipe is fixedly installed at the center of the right end of the H-shaped pipe, and an outer casing is fixedly installed at the lower end of the air outlet pipe;

[0008] An upper partition is fixedly mounted on the inner upper end of the outer casing;

[0009] A through hole is provided from the upper end surface to the lower end surface of the upper partition, a circular ring is fixedly installed on the inner circumferential surface of the through hole, a gear ring is rotatably installed inside the circular ring, and ventilation holes are evenly provided in an annular array from the upper end surface to the lower end surface of the circular ring and the gear ring;

[0010] A sleeve is fixedly installed at the lower end of the upper partition and located outside the through hole, and a HEPA filter is slidably installed inside the sleeve;

[0011] The outer side of the upper end of the HEPA filter is fitted with the inner side of the ring.

[0012] Preferably, the number of the through holes is four, a groove is provided on the inner circumferential surface of the circular ring, and the gear ring is rotatably mounted inside the groove.

[0013] By adopting the above technical solution, the gear ring can be rotated under the action of the groove, and the corresponding vent holes can be aligned during the rotation, so that argon gas can enter the interior of the sleeve, and then filtering and dust removal operations can be performed.

[0014] Preferably, a second motor matching the through hole is fixedly mounted on the inner side of the upper partition, a gear is fixedly mounted on the output shaft of the second motor, the gear passes through the circular ring and meshes with the gear ring on the inner side, and the gear can drive the gear ring to rotate.

[0015] By adopting the above technical solution, the gear can be rotated under the action of the second motor, and the gear can drive the gear ring to rotate, thereby completing the alignment of the vent holes.

[0016] Preferably, a lower baffle is commonly fixedly mounted on the lower ends of the four sleeves, a clamping ring is fixedly mounted on the lower end of the sleeve, a truncated cone is fixedly mounted on the lower end of the clamping ring, the upper end surface to the lower end surface of the truncated cone is in a through state, and the HEPA filter passes through the truncated cone.

[0017] By adopting the above technical solution, the arc ring can be supported under the action of the clamping ring and the sealing performance can be guaranteed.

[0018] Preferably, micro telescopic pumps are evenly fixedly installed in an annular array on the outer circumferential surface of the lower end of the sleeve, L-shaped connecting rods are fixedly installed on the telescopic rods of the micro telescopic pumps, and arc rings are fixedly installed on the inner sides of the L-shaped connecting rods. The arc rings are located between the sleeve and the clamping ring. Multiple arc rings can be combined into an annular structure, and the inner side of the arc ring can fit tightly with the outer side of the HEPA filter.

[0019] By adopting the above technical solution, the L-shaped connecting rod can slide with the arc ring under the action of the micro telescopic pump. During the sliding of the arc ring, the internal dust can fall to the bottom of the lower partition of the outer box and then be collected.

[0020] Preferably, the upper end surface of the upper partition is located at the edge position of the through hole and support rods are evenly fixedly installed in a circular array, a high-pressure pump is fixedly installed on the inner side of the upper end of the support rods, a connecting threaded pipe is fixedly installed on the lower end of the high-pressure pump, and a threaded hole column is fixedly installed on the upper end of the HEPA filter, and the connecting threaded pipe is rotatably installed inside the threaded hole column.

[0021] By adopting the above technical solution, the high-pressure pump can be supported by the support rod, and the inside of the HEPA filter can be back-blown by the high-pressure pump, so that dust on the outside of the HEPA filter can fall off, thereby increasing the service life of the HEPA filter.

[0022] Preferably, a suction pump is fixedly installed at the center of the lower end of the outer casing, a cooling pump is fixedly installed at the lower end of the HEPA filter located outside the outer casing, and a bracket is fixedly installed at the outer lower end corner of the outer casing.

[0023] By adopting the above technical solution, the dust on the bottom surface of the outer box can be sucked away by the suction pump to ensure the internal space, and the cooling pump can cool the filtered argon gas, thereby improving the purity of the argon gas.

[0024] Preferably, a first motor in a symmetrical state is fixedly mounted on the upper end of the H-shaped pipe, a sealing valve is fixedly mounted on the output shaft of the first motor, and the sealing valve is located inside the H-shaped pipe.

[0025] By adopting the above technical solution, the sealing valve can be operated under the action of the first motor, so that the H-shaped pipe can be opened, and the first filter cartridge inside the H-shaped pipe can be replaced according to the situation.

[0026] Preferably, a first filter cartridge is rotatably mounted inside the H-shaped pipe, an air inlet is opened on the left circumferential surface of the first filter cartridge, and the air inlet is connected to the interior of the H-shaped pipe.

[0027] By adopting the above technical solution, the argon gas entering the H-shaped pipe can enter the first filter cartridge under the air inlet in the first filter cartridge, so that the corresponding impurities in the argon gas can be filtered.

[0028] Preferably, an internal thread is provided on the left side of the interior of the H-shaped pipe, and a threaded rod is fixedly installed on the left end of the first filter cartridge, and the threaded rod is rotatably connected to the internal thread.

[0029] By adopting the above technical solution, under the action of the internal thread and the threaded post, the first filter cartridge can be in a fixed state, thereby ensuring the stability of filtration, and thus the first filter cartridge can be replaced at any time.

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

[0031] 1. In the present invention, under the action of the second motor, the gear can be driven to rotate, so that the gear can drive the gear ring to rotate, so that the argon gas inside the outer casing can pass through the ventilation holes and enter the inside of the sleeve, and then be filtered by the HEPA filter; during the maintenance process, a single HEPA filter can be started for operation according to the situation, that is, the remaining HEPA filters can be rotated and removed; in this way, it is ensured that the device can still operate during the maintenance process; in addition, when facing a small amount of argon gas, one or two HEPA filter devices can be started for filtration according to the situation of the argon gas, so as to avoid all HEPA filters operating at the same time and improve the filtration efficiency.

[0032] 2. In the present invention, during the use process, the water vapor in the filtered argon gas can be liquefied by the cooling pump, so the purity of the argon gas after liquefaction will be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of the external main body of the present invention;

[0035] Figure 2 It is a combined schematic diagram of the air inlet pipe and the H-shaped pipe of the present invention

[0036] Figure 3 It is a schematic diagram of the first filter cartridge and the H-shaped pipe of the present invention;

[0037] Figure 4 It is a schematic diagram of the inside of the H-shaped pipe of the present invention;

[0038] Figure 5 It is a structural diagram of the inside of the outer casing of the present invention;

[0039] Figure 6 It is a combined schematic diagram of the upper partition board and the sleeve of the present invention;

[0040] Figure 7 It is a schematic diagram of the upper baffle and the circular ring of the present invention;

[0041] Figure 8 It is a schematic diagram of the sleeve and the clamp ring of the present invention;

[0042] Fig. 9 It is a schematic diagram of the arc ring combination of the present invention;

[0043] Fig.10 It is a schematic diagram of a high pressure pump and a HEPA filter of the present invention;

[0044] Fig.11 It is a schematic diagram of the connection between the sleeve and the HEPA filter of the present invention;

[0045] Fig.12 This is a working diagram of the dust removal box.

[0046] Description of reference numerals:

[0047] 1. Air inlet pipe; 2. H-shaped pipe; 201. First motor; 202. Sealing valve; 203. Internal thread; 204. First filter cartridge; 205. Air inlet; 206. Threaded rod; 3. Air outlet pipe;

[0048] 4. Outer box; 401. Bracket; 402. Upper baffle; 403. Through hole; 404. Circular ring; 405. Air vent; 406. Groove; 407. Gear ring; 408. Second motor; 409. Gear; 410. Snap ring; 411. Round table; 412. Micro telescopic pump; 413. L-shaped connecting rod; 414. Arc ring; 415. Casing; 416. Lower baffle;

[0049] 5. HEPA filter; 501. threaded hole column; 502. cooling pump; 503. support rod; 504. high pressure pump; 505. connecting threaded pipe;

[0050] 6. Suction pump. DETAILED DESCRIPTION

[0051] 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.

[0052] See also Figures 1 to 12 , the present invention provides a technical solution:

[0053] A dust removal and filtering device for argon recovery includes an air intake pipe 1, the top of which is used to be fixedly connected to an argon delivery pipe, so that the argon can enter the interior of the air intake pipe 1. Figure 1 shown.

[0054] An H-shaped pipe 2 is fixedly installed on the right side of the lower end of the intake pipe 1. The right side of the lower end of the intake pipe 1 is fixedly installed on the middle position of the left side of the H-shaped pipe 2. Since the intake pipe 1 and the H-shaped pipe 2 are connected, the argon gas will pass through the intake pipe 1 and enter the inside of the H-shaped pipe 2. Since the H-shaped pipe 2 has two left and right channels, the argon gas will be diverted at this time. Figure 2 and Figure 3 shown.

[0055] Two first motors 201 are fixedly installed on the left upper end surface of the H-shaped pipe 2. A sealing valve 202 is fixedly installed on the output shaft of the first motor 201. The sealing valve 202 is located inside the H-shaped pipe 2. Figure 4 As shown, the two sealing valves 202 are located at the front and rear sides of the connection between the H-shaped pipe 2 and the intake pipe 1. Therefore, during use, the first motor 201 is started, and the output shaft of the first motor 201 rotates with the sealing valve 202, which can open or close the corresponding pipe.

[0056] The first filter cartridge 204 is rotatably mounted inside the pipes on both the front and rear sides of the H-shaped pipe 2. At this time, the inner walls of the two pipe openings on the left side of the H-shaped pipe 2 are provided with internal threads 203, and a threaded rod 206 is rotatably mounted in the internal threads 203. The right end of the threaded rod 206 is fixedly connected to the left end of the first filter cartridge 204. Figure 3 shown.

[0057] Therefore, during use, the two first filter cartridges 204 are slidably installed into the interior of the H-shaped pipe 2, and then the threaded rod 206 rotates with the corresponding first filter cartridge 204, so as to ensure the stability of the first filter cartridge 204, avoid the first filter cartridge 204 from moving on its own, and ensure the stability of the filtration.

[0058] An air inlet 205 is opened and closed on the left end circumferential surface of the two first filter cartridges 204. The air inlet 205 can allow the first filter cartridge 204 and the H-shaped pipe 2 to be in a through state, so that the argon gas inside the H-shaped pipe 2 can pass through the air inlet 205 and enter the interior of the first filter cartridge 204, and the argon gas is subjected to primary filtration by the first filter cartridge 204.

[0059] The filtered argon gas will be discharged from the outlet pipe 3 fixedly installed at the center position of the right end of the H-shaped pipe 2, so that the argon gas can enter the next process.

[0060] The lower end of the air outlet pipe 3 is fixedly mounted with an outer box 4, wherein brackets 401 are fixedly mounted at the four corners of the outer lower end of the outer box 4, and the brackets 401 are used to keep the outer box 4 away from the ground. Figure 1 shown.

[0061] An upper partition 402 is fixedly installed at the inner upper end of the outer box 4, and four through holes 403 are opened in a rectangular array from the upper end surface to the lower end surface of the upper partition 402, and a ring 404 is fixedly installed on the inner circumferential surface of the four through holes 403, and the central upper end surface to the lower end surface of the ring 404 is in a through state, and a groove 406 of an annular structure is opened on the inner circumferential surface of the ring 404, and a gear ring 407 is rotatably installed inside the groove 406, and a tooth groove is provided on the outer circumferential surface of the gear ring 407, such as Figure 7 shown.

[0062] Moreover, the center upper end surface to the lower end surface of the gear ring 407 will also be in a through state, and the through diameter is consistent with that of the circular ring 404.

[0063] A vent hole 405 is provided from the upper end surface of the circular ring 404 and the gear ring 407 to the underlying surface, and four second motors 408 are fixedly installed in the interlayer of the upper partition 402. Gears 409 are fixedly installed on the output shafts of the second motors 408, and the gears 409 are meshed with adjacent gear rings 407, because a through hole is provided from the outer side surface of the circular ring 404 to the inside for the gears 409 to mesh with the gear ring 407.

[0064] During use, the second motor 408 is started, and the output shaft of the second motor 408 will rotate synchronously with the gear 409, and the gear 409 will drive the gear ring 407 to rotate synchronously during the rotation. At this time, the gear ring 407 with the vent hole 405 and the vent hole 405 on the ring 404 are aligned, and the argon gas at the upper end of the outer box 4 will enter the interior of the sleeve 415 for subsequent operations through the vent hole 405. When the gear ring 407 and the vent hole 405 on the ring 404 are in a staggered state, the argon gas inside the outer box 4 can only be stored at the upper end of the interior without being filtered.

[0065] Therefore, under the action of the above-mentioned structure, the vent hole 405 can be started to operate according to the situation, or according to the situation of the argon gas, a single or two second motors 408 can be started to rotate, so as to avoid all the filtering devices working at the same time when facing a small amount of argon gas; moreover, during use, when a single second motor 408 is in operation, the other three can be repaired or replaced, which further improves the efficiency of the project and ensures the uninterrupted operation.

[0066] A lower partition 416 is fixedly installed at the lower end of the inner part of the outer box 4, and a sleeve 415 is fixedly installed between the lower partition 416 and the upper partition 402, wherein the lower end of the sleeve 415 is located below the lower partition 416, and a clamping ring 410 is fixedly installed at the lower end of the sleeve 415, and there is a certain distance between the clamping ring 410 and the lower end of the sleeve 415, and then a frustum 411 is fixedly installed at the lower end of the clamping ring 410, and the frustum 411 is used to allow the dust that falls later to slide to both sides, and then six micro telescopic pumps 412 are evenly fixedly installed in a circular array on the outer circumferential surface of the lower end of the sleeve 415, and an L-shaped connecting rod 413 is fixedly installed on the telescopic rod of the micro telescopic pump 412, and an arc ring 414 is fixedly installed on the inner end of the L-shaped connecting rod 413, such as Figure 6 and Fig. 9 shown.

[0067] During use, starting the micro telescopic pump 412 can move the L-shaped connecting rod 413, and the L-shaped connecting rod 413 will slide the arc ring 414 outward or inward. When the six arc rings 414 are combined together, they can fit tightly with the outer side of the HEPA filter 5 of the subsequent operation, thereby ensuring that the argon gas inside the sleeve 415 will not flow out without being filtered.

[0068] Then, when cleaning the dust inside the sleeve 415, the six arc rings 414 slide outward and slide between the sleeve 415 and the retaining ring 410, so that the dust inside the sleeve 415 can fall into the outer box 4. This structure ensures the filtering of argon gas and the collection of dust.

[0069] Six support rods 503 are evenly fixedly installed in an annular array at the upper end of the upper partition 402 and outside the through hole 403, and a high-pressure pump 504 is fixedly installed on the inner side of the support rod 503, and a connecting threaded pipe 505 is fixedly installed at the lower end of the high-pressure pump 504, wherein the outer side surface of the connecting threaded pipe 505 is provided with a thread, and the upper end surface to the lower end surface is in a through state, so that the subsequent back-blowing high-pressure gas can pass through, and then a HEPA filter 5 is slidably installed inside the sleeve 415, wherein the HEPA filter 5 The EPA filter 5 will pass through the truncated cone 411, and the diameter of the outer circumferential surface of the upper end of the HEPA filter 5 is consistent with the inner diameter of the ring 404, so as to prevent the argon gas from entering the interior of the sleeve 415 without passing through the vent hole 405; it should be noted that the high-pressure pump 504 needs to be fixedly connected to the external gas pipeline, so as to ensure that the high-pressure pump 504 compresses the gas after sucking it in, and then produces a greater backwash effect during operation. Therefore, a pipeline is fixedly installed on the outer side of the lower end of the high-pressure pump 504, such as Fig.10As shown, this pipeline is connected to the external air pipe. Therefore, when in use, it is also necessary to allow the external pipeline to pass through the upper end of the outer box 4 and be fixedly connected to the connecting pipe of the high-pressure pump 504. Therefore, four circular holes need to be opened at the upper end of the outer box 4 for operation. The specific opening position is opened according to the direction of the connecting pipe of the high-pressure pump 504, and no specific fixed design is made here.

[0070] A threaded hole column 501 is fixedly installed at the top center of the HEPA filter 5. The threaded hole column 501 is in a through state from the upper end to the lower end, and a thread is provided on the outer circumferential surface, so that the threaded hole column 501 and the connecting threaded tube 505 can be rotatably connected together, thereby ensuring the stability of the HEPA filter 5 so that the argon gas entering the sleeve 415 can be filtered by the HEPA filter 5, and the filtered argon gas will be inside the HEPA filter 5 at this time. Fig.11 and Fig.12 shown.

[0071] like Figure 1 As shown, the lower end of the HEPA filter 5 is located on the outside of the outer box 4, and a cooling pump 502 is fixedly installed at the lower end of the HEPA filter 5 using bolts and nuts, and the argon gas in the filter cartridge will enter the interior of the cooling pump 502, and the cooling pump 502 will cool the passing argon gas, so that the water vapor in the argon gas can be liquefied, thereby improving the purity of the argon gas; then, a suction pump 6 is fixedly installed at the center position of the lower end of the outer box 4, and the suction pump 6 is used to suck away the dust at the lower end of the inner part of the outer box 4, so as to ensure that the lower end of the inner part of the outer box 4 has enough space to receive the dust falling from the sleeve 415.

[0072] Working principle: First, the air inlet pipe 1 is connected to the external argon gas delivery pipeline, allowing the argon gas to enter the interior of the air inlet pipe 1, and then enter the interior of the H-shaped pipe 2.

[0073] The first motor 201 is started, and the output shaft of the first motor 201 rotates with the sealing valve 202, so that the argon gas is split and flows into the interior of the first filter cartridges 204 on both sides for primary filtration.

[0074] The filtered argon gas passes through the gas outlet pipe 3 and enters the interior of the outer box 4 .

[0075] The second motor 408 is started, and the output shaft of the second motor 408 rotates with the gear 409, and the gear 409 drives the gear ring 407 to rotate, so that the gear ring 407 and the vent hole 405 on the ring 404 are aligned, and the argon gas passes through the vent hole 405 into the interior of the sleeve 415, and then passes through the HEPA filter 5 for filtering.

[0076] The filtered argon gas will enter the interior of the cooling pump 502, and the cooling pump 502 will liquefy the water vapor in the argon gas to improve the purity of the argon gas.

[0077] The high-pressure pump 504 is started, and the high-pressure pump 504 performs a back-flushing operation on the HEPA filter 5 to make the dust accumulated on the outside of the HEPA filter 5 fall off.

[0078] Start the micro telescopic pump 412, which moves with the L-shaped connecting rod 413, and the L-shaped connecting rod 413 moves synchronously with the arc ring 414, so that the inner side of the arc ring 414 and the outer side of the HEPA filter 5 are separated, so that the dust inside the sleeve 415 can fall off, and the suction pump 6 is started to suck away the dust.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust removal and filtering device for argon recovery, characterized in that: It comprises an air inlet pipe (1), an H-shaped pipe (2) is fixedly mounted on the right end of the air inlet pipe (1), an air outlet pipe (3) is fixedly mounted at the center of the right end of the H-shaped pipe (2), and an outer casing (4) is fixedly mounted on the lower end of the air outlet pipe (3); An upper partition plate (402) is fixedly mounted on the inner upper end of the outer casing (4); A through hole (403) is provided from the upper end surface to the lower end surface of the upper partition (402); a circular ring (404) is fixedly installed on the inner circumferential surface of the through hole (403); a gear ring (407) is rotatably installed inside the circular ring (404); and ventilation holes (405) are evenly provided in an annular array from the upper end surface to the lower end surface of the circular ring (404) and the gear ring (407); A sleeve (415) is fixedly installed at the lower end of the upper partition (402) outside the through hole (403), and a HEPA filter (5) is slidably installed inside the sleeve (415); The outer side of the upper end of the HEPA filter (5) is in contact with the inner side of the circular ring (404).

2. A dust removal and filtering device for argon recovery according to claim 1, characterized in that: The number of the through holes (403) is four, a groove (406) is provided on the inner circumferential surface of the circular ring (404), and the gear ring (407) is rotatably mounted inside the groove (406).

3. The dust removal and filtering device for argon recovery according to claim 1, characterized in that: A second motor (408) matching the through hole (403) is fixedly mounted on the inner side of the upper partition (402); a gear (409) is fixedly mounted on the output shaft of the second motor (408); the gear (409) passes through the circular ring (404) and meshes with the gear ring (407) on the inner side; the gear (409) can drive the gear ring (407) to rotate.

4. The dust removal and filtering device for argon recovery according to claim 2, characterized in that: A lower baffle (416) is fixedly mounted on the lower ends of the four sleeves (415), a clamping ring (410) is fixedly mounted on the lower end of the sleeve (415), a truncated cone (411) is fixedly mounted on the lower end of the clamping ring (410), the upper end surface and the lower end surface of the truncated cone (411) are in a through state, and the HEPA filter (5) passes through the truncated cone (411).

5. A dust removal and filtering device for argon recovery according to claim 4, characterized in that: Micro telescopic pumps (412) are evenly fixedly mounted in an annular array on the outer circumferential surface of the lower end of the sleeve (415); L-shaped connecting rods (413) are fixedly mounted on the telescopic rods of the micro telescopic pumps (412); arc-shaped rings (414) are fixedly mounted on the inner sides of the L-shaped connecting rods (413); the arc-shaped rings (414) are located between the sleeve (415) and the clamping ring (410); a plurality of the arc-shaped rings (414) can be combined to form an annular structure; the inner side surface of the arc-shaped ring (414) can fit tightly with the outer side surface of the HEPA filter (5).

6. The dust removal and filtering device for argon recovery according to claim 1, characterized in that: The upper end surface of the upper partition (402) is located at the edge position of the through hole (403), and support rods (503) are evenly fixedly installed in a circular array. The inner side of the upper end of the support rods (503) is fixedly installed with a high-pressure pump (504). The lower end of the high-pressure pump (504) is fixedly installed with a connecting threaded pipe (505). The upper end of the HEPA filter (5) is fixedly installed with a threaded hole column (501), and the connecting threaded pipe (505) is rotatably installed inside the threaded hole column (501).

7. The dust removal and filtering device for argon recovery according to claim 1, characterized in that: A suction pump (6) is fixedly installed at the center position of the lower end of the outer box (4), a cooling pump (502) is fixedly installed at the lower end of the HEPA filter (5) located outside the outer box (4), and a bracket (401) is fixedly installed at the corner position of the lower end of the outer side of the outer box (4).

8. The dust removal and filtering device for argon recovery according to claim 1, characterized in that: A first motor (201) is fixedly mounted on the upper end of the H-shaped pipe (2) in a symmetrical state, a sealing valve (202) is fixedly mounted on the output shaft of the first motor (201), and the sealing valve (202) is located inside the H-shaped pipe (2).

9. A dust removal and filtering device for argon recovery according to claim 8, characterized in that: A first filter cartridge (204) is rotatably mounted inside the H-shaped pipe (2), an air inlet (205) is provided on the left circumferential surface of the first filter cartridge (204), and the air inlet (205) is connected to the inside of the H-shaped pipe (2).

10. The dust removal and filtering device for argon recovery according to claim 1, characterized in that: An internal thread (203) is provided on the left side of the interior of the H-shaped pipe (2), and a threaded rod (206) is fixedly installed on the left end of the first filter cartridge (204), and the threaded rod (206) is rotatably connected to the internal thread (203).

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