Dry type tail gas purifier with filter element convenient to replace

Abstract

The dry type tail gas purifier comprises a first-stage box body, the right side of the first-stage box body is connected with a second-stage box body, the right side of the second-stage box body is connected with a third-stage box body, and the interiors of the first-stage box body, the second-stage box body and the third-stage box body are used for containing the filter elements; the second-stage box body is formed by welding a semicircular box body and a rectangular box body, and round through holes with the diameter slightly larger than that of the filter element are formed in the left side and the right side of the second-stage box body. The first switch is arranged on the second-stage box body to control the telescopic rod of the first electric cylinder, the automatic push-out function of the filter element is achieved through an electrification means, the replacement process is greatly simplified, a user only needs to operate the switch, forward push and discharge of the filter element can be automatically completed, manual powerful push and pull are not needed, and the replacement efficiency is improved. The method has the advantages that the operation difficulty and the manpower demand are reduced, the use safety and convenience are enhanced, and the obvious beneficial effects of improving the user experience and the maintenance efficiency are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of exhaust gas purifiers, and in particular relates to a dry exhaust gas purifier with easy filter element replacement. Background Art

[0002] Amidst growing environmental awareness, exhaust gas purification technology has become an integral component of the automotive industry and other emission sources, aiming to reduce harmful gas and particulate matter emissions and protect the atmospheric environment. Traditional exhaust gas purification systems primarily utilize wet purification methods, but with technological advancements, dry exhaust gas purifiers are gaining popularity due to their advantages, such as the lack of additional treatment fluids and low maintenance costs. These purifiers primarily rely on high-efficiency filters to capture exhaust pollutants such as particulate matter (PM) and nitrogen oxides (NOx), making them crucial for improving air quality and meeting increasingly stringent emission standards.

[0003] However, existing dry-type exhaust gas purifiers still have several shortcomings regarding filter element replacement and maintenance. First, in most designs, filter element removal and installation are cumbersome, often requiring specialized tools and technicians, increasing maintenance time and costs. Furthermore, poorly designed housings create inconvenience for users during routine inspection and cleaning. Therefore, we propose a dry-type exhaust gas purifier that facilitates filter element replacement. Summary of the Invention

[0004] In response to the problems existing in the prior art, the purpose of the present invention is to provide a dry exhaust purifier that is easy to replace the filter element. By providing a first electric cylinder that can push the filter element forward to discharge and a second electric cylinder that can push the filter element to move toward the secondary box, there is no need to disassemble the entire exhaust purifier. Only the cover plate needs to be removed to take out the three filter elements, which is convenient for maintenance and replacement.

[0005] The present invention is achieved in this way, a dry exhaust gas purifier that is convenient for replacing the filter element, includes a first-stage box body, the right side of the first-stage box body is connected to the second-stage box body, the right side of the second-stage box body is connected to the third-stage box body, the interiors of the first-stage box body, the second-stage box body and the third-stage box body are used to accommodate the filter element, and the second-stage box body is welded together. The left and right sides of the second-stage box body are both provided with circular through holes with a diameter slightly larger than the filter element, and the front side of the second-stage box body is connected to a cover plate, the rear side of the cover plate is fixedly connected to a block, one side of the block is provided with a semicircular notch, a first mounting box body is welded on the rear side of the semicircular box body, a first electric cylinder and a battery for powering it are provided inside the first mounting box body, the front of the telescopic rod of the first electric cylinder is fixedly connected to an arc push plate, and a notch for the arc push plate to pass through is provided on the inner wall of the semicircular box body.

[0006] Optionally, a first switch is provided on the upper portion of the secondary box, and the first switch is used to control the telescopic rod of the first electric cylinder.

[0007] Optionally, a first mounting bar is welded to the upper and lower parts of the rectangular box, and a second mounting bar is welded to the upper and lower parts of the cover, respectively. The second mounting bar is connected to the first mounting bar by screws.

[0008] Optionally, the left side of the secondary box is connected to the primary box via a flange, and the right side of the secondary box is connected to the tertiary box via a flange.

[0009] Optionally, a first arc-shaped transition section is welded on the left side of the first-stage box body, an air inlet pipe is welded on the left side of the first arc-shaped transition section, a second arc-shaped transition section is welded on the right side of the third-stage box body, and an air outlet pipe is welded on the right side of the second arc-shaped transition section.

[0010] Optionally, an exhaust gas connecting plate is welded to the air inlet pipe and the air outlet pipe respectively, and a vent hole and a mounting hole are provided on the exhaust gas connecting plate.

[0011] Optionally, a second mounting box body is welded to the first arc-shaped transition section and the second arc-shaped transition section respectively, and a second electric cylinder and a battery for powering it are fixedly connected to the interior of the second mounting box body. A second switch is provided on the front side of the second mounting box body, and the second switch is used to control the telescopic rod of the second electric cylinder.

[0012] Optionally, a pushing mechanism is provided inside the first arc-shaped transition section and the second arc-shaped transition section, an extension column is welded to the pushing mechanism, and the telescopic rod of the second electric cylinder is welded to the extension column.

[0013] Optionally, the pushing mechanism is composed of two steel rings, and a plurality of connecting bars are welded between the two steel rings.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The multi-stage housing structure allows for segmented filter element storage. This layout not only optimizes space utilization but also facilitates the allocation of different levels of filter material based on the characteristics of different pollutants, improving purification efficiency. Furthermore, the segmented design allows for targeted filter element replacement, reducing overall replacement costs and time, thereby improving maintenance convenience and cost-effectiveness.

[0015] 2. A first switch is set on the secondary box to control the telescopic rod of the first electric cylinder. This design realizes the automatic ejection function of the filter element through electrification, greatly simplifying the replacement process. The user only needs to operate the switch to automatically push the filter element forward and discharge it, without the need for manual forceful pushing and pulling. This reduces the difficulty of operation and manpower requirements, enhances the safety and convenience of use, and has a significant beneficial effect on improving user experience and maintenance efficiency.

[0016] 3. By providing first and second mounting strips on the rectangular housing and cover, and using screws to connect them, a secure connection between the cover and housing is ensured, improving the sealing and stability of the overall structure. This improvement not only simplifies the assembly process and reduces the risk of air leaks caused by improper assembly, but also makes daily inspection and maintenance more convenient, helping to maintain the purifier in good working condition over the long term and extending its service life, thereby achieving the beneficial effects of improving system reliability and reducing maintenance costs.

[0017] 4. By providing a second electric cylinder that can push the filter element to move toward the secondary box, the filter elements in the primary box and the tertiary box can also be discharged through the cover of the secondary box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram provided by the present invention; Figure 2 It is a schematic diagram of the propulsion mechanism provided by the present invention; Figure 3 This is a first-view schematic diagram of the secondary box provided by the present invention; Figure 4 This is a schematic diagram of the second viewing angle of the secondary box provided by the present invention; Figure 5 It is a schematic diagram of the second electric cylinder provided by the present invention.

[0019] In the picture: 1. Inlet pipe; 2. Outlet pipe; 3. Tertiary box; 4. Primary box; 5. Secondary box; 51. Semicircular box; 52. Rectangular box; 6. Exhaust connecting plate; 7. Mounting hole; 8. Vent hole; 9. Second arc-shaped transition section; 10. Pushing mechanism; 11. Extension column; 12. First electric cylinder; 13. First mounting box; 14. Arc-shaped push plate; 15. First switch; 16. First mounting strip; 17. Stop block; 18. Second mounting strip; 19. Cover plate; 20. First arc-shaped transition section; 21. Second electric cylinder; 22. Second switch; 23. Second mounting box. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, an embodiment of the present invention provides a dry exhaust purifier that is easy to replace the filter element.

[0022] It includes a first-level box body 4, the right side of the first-level box body 4 is connected to the second-level box body 5, the right side of the second-level box body 5 is connected to the third-level box body 3, the interior of the first-level box body 4, the second-level box body 5 and the third-level box body 3 is used to accommodate the filter element, the second-level box body 5 is welded by a semicircular box body 51 and a rectangular box body 52, and the left and right sides of the second-level box body 5 are provided with circular through holes with a diameter slightly larger than the filter element, the front side of the second-level box body 5 is connected to a cover plate 19, the rear side of the cover plate 19 is fixedly connected to a block 17, one side of the block 17 is provided with a semicircular notch, the rear side of the semicircular box body 51 is welded with a first mounting box body 13, the interior of the first mounting box body 13 is provided with a first electric cylinder 12 and a battery for powering it, the front part of the telescopic rod of the first electric cylinder 12 is fixedly connected to an arc-shaped push plate 14, and the inner wall of the semicircular box body 51 is provided with a notch for the arc-shaped push plate 14 to pass through.

[0023] By dividing the purifier into a primary chamber 4, a secondary chamber 5, and a tertiary chamber 3, each housing its own filter element, this design overcomes the limitations of traditional single-chamber structures. This multi-stage design not only improves space utilization, allowing for the configuration of filter elements with varying performance based on pollutant types, but also enables partial replacement of filter elements, avoiding the wasteful need to replace the entire filter pack due to a single damaged element.

[0024] This segmented design significantly reduces maintenance costs and time, and improves the flexibility and adaptability of the system. Especially when facing different working conditions or changes in pollutant concentrations, users can replace specific levels of filter elements according to actual needs, ensuring purification efficiency while extending the service life of the entire purification system.

[0025] Another innovative feature of the present invention is the integration of the first electric cylinder 12 and the curved push plate 14 within the secondary housing 5. The automated control of the first electric cylinder 12 allows for easy ejection of the filter element, eliminating the laborious and inconvenient manual removal associated with conventional designs.

[0026] This mechanism greatly simplifies the filter replacement process, reducing the operator's physical burden and technical requirements. Even non-professionals can easily complete the filter replacement, significantly improving user experience and maintenance efficiency. At the same time, the automated sliding process ensures that the filter is not damaged during replacement, maintaining the long-term purification efficiency of the purifier.

[0027] The circular through-hole, which is slightly larger than the diameter of the filter element, ensures that the filter element can pass through smoothly when it needs to be replaced, while avoiding airflow leakage caused by unnecessary gaps, reflecting the exquisite balance in design.

[0028] The design detail of the semicircular notch of the stopper 17 is intended to utilize the stopper 17 to limit the forward and backward movement of the filter element, thereby maintaining the stability of the structure and the safety of operation.

[0029] A first switch 15 is provided on the upper portion of the secondary box 5 , and the first switch 15 is used to control the telescopic rod of the first electric cylinder 12 .

[0030] The upper and lower parts of the rectangular box 52 are respectively welded with first mounting bars 16 , and the upper and lower parts of the cover plate 19 are respectively welded with second mounting bars 18 . The second mounting bars 18 are connected to the first mounting bars 16 by screws.

[0031] The left side of the secondary box body 5 is connected to the primary box body 4 through a flange, and the right side of the secondary box body 5 is connected to the tertiary box body 3 through a flange.

[0032] A first arc-shaped transition section 20 is welded to the left side of the first-stage box body 4, and an air inlet pipe 1 is welded to the left side of the first arc-shaped transition section 20. A second arc-shaped transition section 9 is welded to the right side of the third-stage box body 3, and an air outlet pipe 2 is welded to the right side of the second arc-shaped transition section 9.

[0033] An exhaust gas connection plate 6 is welded to the air inlet pipe 1 and the air outlet pipe 2 respectively. A vent hole 8 and a mounting hole 7 are provided on the exhaust gas connection plate 6 .

[0034] A second mounting box body 23 is welded to the first arc-shaped transition section 20 and the second arc-shaped transition section 9, respectively. The second electric cylinder 21 and the battery for powering it are fixedly connected to the interior of the second mounting box body 23. A second switch 22 is provided on the front side of the second mounting box body 23. The second switch 22 is used to control the telescopic rod of the second electric cylinder 21.

[0035] A pushing mechanism 10 is provided inside the first arc-shaped transition section 20 and the second arc-shaped transition section 9 . An extension column 11 is welded to the pushing mechanism 10 . The telescopic rod of the second electric cylinder 21 is welded to the extension column 11 .

[0036] The pushing mechanism 10 is composed of two steel rings, and a plurality of connecting bars are welded between the two steel rings.

[0037] First switch 15, located above secondary housing 5, serves as the command input for controlling first electric cylinder 12. This innovation integrates automated control into the purifier's structural design, changing the traditional manual filter element operation. This electronic control allows for precise control of the filter element's push-pull process, eliminating the inaccuracies and labor intensity associated with manual operation.

[0038] This design greatly simplifies the filter element replacement process, improving safety and convenience. With just a flick of a switch, the electric cylinder automatically pushes out or repositions the filter element, lowering maintenance requirements and improving efficiency.

[0039] The rectangular box 52 and the cover 19 are connected by screws of the first mounting bar 16 and the second mounting bar 18. This design enhances the sealing and stability of the box, simplifies the assembly process, and is also easy to disassemble for maintenance.

[0040] This connection method improves the compactness and durability of the overall structure, reduces potential leakage risks, ensures the stable operation of the purifier under complex working conditions, extends its service life, and reduces production and maintenance costs.

[0041] By tightly connecting the boxes at each level through flanges, and setting arc-shaped transition sections at the ends of the first and third-stage boxes 3 and welding the inlet and outlet air ducts, this design optimizes the airflow path, ensures a smooth transition of the airflow, reduces air resistance, and improves purification efficiency.

[0042] The flange connection ensures the sealing between the components and prevents gas leakage, while the reasonable layout of the inlet and outlet ducts reduces the resistance to air flow, enabling the exhaust gas to be efficiently purified, while reducing the noise level and improving the overall performance and environmental protection effect of the equipment.

[0043] The second mounting box 23 houses the second electric cylinder 21 and the push mechanism 10, controlled by a second switch 22. This design further automates filter element replacement. The steel ring and connecting bar structure of the push mechanism 10 ensure even distribution of force, preventing damage to the filter element during movement.

[0044] This design not only strengthens the guidance and protection of the filter element during the entry and exit process, but also simplifies the filter element replacement operation by precisely controlling the displacement of the filter element, thereby improving the reliability and maintenance convenience of the overall system and bringing users a more intelligent and efficient use experience.

[0045] In summary, through a series of innovative designs, the present invention effectively solves the problems existing in traditional dry exhaust purifiers in terms of filter element replacement, structural sealing and airflow management, significantly improves the purifier's ease of use, maintenance efficiency and purification performance, and demonstrates a high degree of practical value and technological innovation.

[0046] 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. A dry exhaust gas purifier that is easy to replace the filter element, comprising a first-stage box (4), characterized in that: The right side of the primary box (4) is connected to the secondary box (5), and the right side of the secondary box (5) is connected to the tertiary box (3). The interiors of the primary box (4), the secondary box (5) and the tertiary box (3) are used to accommodate the filter element. The secondary box (5) is welded by a semicircular box (51) and a rectangular box (52). The left and right sides of the secondary box (5) are both provided with circular through holes with a diameter slightly larger than that of the filter element. The front side of the secondary box (5) is connected to a cover plate (19). The rear side of the cover plate (19) is fixedly connected to a stopper (17), and a semicircular notch is provided on one side of the stopper (17). A first mounting box (13) is welded to the rear side of the semicircular box body (51), and a first electric cylinder (12) and a battery for powering the first electric cylinder (12) are provided inside the first mounting box body (13). The front part of the telescopic rod of the first electric cylinder (12) is fixedly connected to an arc-shaped push plate (14), and a notch for the arc-shaped push plate (14) to pass through is provided on the inner wall of the semicircular box body (51).

2. The dry exhaust gas purifier with easy filter element replacement according to claim 1, characterized in that: A first switch (15) is provided on the upper portion of the secondary box (5), and the first switch (15) is used to control the telescopic rod of the first electric cylinder (12).

3. The dry exhaust gas purifier with easy filter element replacement according to claim 1, characterized in that: The upper and lower parts of the rectangular box (52) are respectively welded with a first mounting bar (16), and the upper and lower parts of the cover plate (19) are respectively welded with a second mounting bar (18), and the second mounting bar (18) is connected to the first mounting bar (16) by screws.

4. The dry exhaust gas purifier with easy filter element replacement according to claim 1, characterized in that: The left side of the secondary box (5) is connected to the primary box (4) via a flange, and the right side of the secondary box (5) is connected to the tertiary box (3) via a flange.

5. The dry exhaust gas purifier with easy filter element replacement according to claim 1, characterized in that: A first arc-shaped transition section (20) is welded to the left side of the first-stage box (4), an air inlet pipe (1) is welded to the left side of the first arc-shaped transition section (20), a second arc-shaped transition section (9) is welded to the right side of the third-stage box (3), and an air outlet pipe (2) is welded to the right side of the second arc-shaped transition section (9).

6. The dry exhaust gas purifier with easy filter element replacement according to claim 5, characterized in that: An exhaust gas connection plate (6) is welded to the air inlet pipe (1) and the air outlet pipe (2), respectively. A vent hole (8) and a mounting hole (7) are provided on the exhaust gas connection plate (6).

7. The dry exhaust gas purifier with easy filter element replacement according to claim 5, characterized in that: A second mounting box body (23) is welded to the first arc-shaped transition section (20) and the second arc-shaped transition section (9), respectively. A second electric cylinder (21) and a battery for supplying power thereto are fixedly connected to the interior of the second mounting box body (23). A second switch (22) is provided on the front side of the second mounting box body (23). The second switch (22) is used to control the telescopic rod of the second electric cylinder (21).

8. The dry exhaust gas purifier with easy filter element replacement according to claim 7, characterized in that: A pushing mechanism (10) is provided inside the first arc-shaped transition section (20) and the second arc-shaped transition section (9), an extension column (11) is welded to the pushing mechanism (10), and a telescopic rod of the second electric cylinder (21) is welded to the extension column (11).

9. The dry exhaust gas purifier with easy filter element replacement according to claim 8, characterized in that: The pushing mechanism (10) is composed of two steel rings, and a plurality of connecting bars are welded between the two steel rings.

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