A waste gas filtration device for stainless steel production

Abstract

This utility model belongs to the field of stainless steel production technology, specifically a waste gas filtration device for stainless steel production. It includes a support base, a housing, and a first and second partition plates fixedly arranged alternately within the housing. A first and second filter ring are rotatably arranged between the first and second partition plates. The diameter of the first filter ring is larger than that of the second filter ring. The second filter ring has a first opening and a second opening mirror-imaged on the first partition plate, and a third opening on the outside of the first filter ring on the second partition plate. An inlet pipe and an exhaust pipe are provided on the housing. A dust collection mechanism is provided between the first and second filter rings, and a linkage mechanism is provided on the dust collection mechanism. This utility model achieves multi-layer filtration during waste gas filtration with high utilization of the first and second filter rings, greatly improving the filtration efficiency of the waste gas. The dust collection mechanism cleans the first and second filter rings.

Description

Technical Field

[0001] This utility model belongs to the field of stainless steel production technology, and in particular relates to a waste gas filtration device for stainless steel production. Background Technology

[0002] Stainless steel is short for stainless and acid-resistant steel. Steels that are resistant to weak corrosive media such as air, steam, and water, or that possess rust-resistant properties, are called stainless steel. Steels that are resistant to chemical corrosion media (acids, alkalis, salts, etc.) are called acid-resistant steel. The production process of stainless steel materials generates a significant amount of waste gas, therefore, waste gas filtration devices are required to treat it.

[0003] For example, patent application number 202022071195.2 discloses a waste gas filtration device for stainless steel production, relating to the field of stainless steel production technology and waste gas filtration device technology. The device includes a treatment box, with first support bars fixedly connected to both ends of the interior of the treatment box. A filter screen is detachably and fixedly connected to the top of the first support bars. A first through hole is provided on the upper left side of the treatment box. A second support bar is fixedly connected to both ends of the interior of the treatment box, with an activated carbon layer detachably and fixedly connected to the top of the second support bar. A second through hole is provided on the upper left side of the treatment box. An electric motor is fixedly connected to the left side of the treatment box. This waste gas filtration device for stainless steel production, through its structure of treatment box, first support bars, filter screen, first through hole, second support bars, activated carbon layer, second through hole, and pull rod, facilitates the disassembly and installation of the filter screen and activated carbon layer, and allows for the replacement of the filter screen and activated carbon layer.

[0004] The above structure achieves preliminary filtration of exhaust gas through a filter screen, and it can be disassembled and installed, making it easy to replace the filter screen when it becomes clogged. However, the above mechanism also has the following drawbacks: the existing filter screen structures are mostly arranged in a linear array. When the first filter screen becomes clogged, the entire structure cannot complete effective filtration. At the same time, the internal structure lacks cleaning settings, and the filter screen needs to be replaced frequently when clogged, which seriously affects production efficiency. In addition, the utilization rate of the subsequent filters is extremely low, and it is common for the filter screen on the clogged side to not be fully used. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a waste gas filtration device for stainless steel production.

[0006] This invention uses a first partition plate, a second partition plate, and multiple filter rings with multiple openings to form four sealed filtration spaces. This allows for multi-layer filtration while ensuring full utilization of the two filter screens, resulting in high utilization of the filter rings. Furthermore, a dust collection mechanism can automatically clean the dust and dirt on the filter rings, further improving filtration efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste gas filtration device for stainless steel production, comprising a support base and a housing, characterized in that a first partition plate and a second partition plate are alternately fixedly arranged inside the housing, a first filter ring and a second filter ring are rotatably arranged between the first partition plate and the second partition plate, the diameter of the first filter ring is larger than the diameter of the second filter ring, a first opening and a second opening are mirror images of each other on the first partition plate inside the second filter ring, a third opening is provided on the second partition plate outside the first filter ring, an air inlet pipe and an exhaust pipe are provided on the housing, a dust suction mechanism is provided between the first filter ring and the second filter ring, and a linkage mechanism is provided on the dust suction mechanism.

[0008] Preferably, the dust collection mechanism includes multiple suction plates disposed on the inner and outer circles of the first and second filter rings. Each suction plate has a second cavity and multiple suction holes. One end of the suction plate extends out of the housing, and a rotating plate is connected to the end of the suction plate extending out of the housing. The rotating plate has a first cavity disposed inside, and the first cavity and the second cavity are interconnected.

[0009] Preferably, the vacuuming mechanism further includes a connecting frame disposed on the housing, a vacuum pump disposed on the connecting frame, a vacuum pipe rotatably connected to the output end of the vacuum pump, and one end of the vacuum pipe communicating with the first cavity inside the rotating plate.

[0010] Preferably, the dust collection mechanism further includes a fixed shaft connected to the housing, the fixed shaft being rotatably connected to a rotating plate, the rotating plate being provided with a guide groove, a first rotating shaft being rotatably mounted on the connecting frame, a guide rod being provided at one end of the first rotating shaft, the other end of the guide rod being located in the guide groove, the guide rod being L-shaped, a base being provided on the connecting frame, and a motor for driving the fixed shaft to rotate being provided on the base.

[0011] Preferably, a sealing plate is provided on the outside of the end of the suction plate that extends out of the housing.

[0012] Preferably, the linkage mechanism includes a first pulley mounted on a first rotating shaft, a second rotating shaft rotatably mounted on the housing, a second pulley mounted on the second rotating shaft, a first belt drivingly connected to the outer surfaces of the first and second pulleys, a third pulley mounted on the other end of the second rotating shaft, a third rotating shaft rotatably mounted on the housing, a fourth pulley and a gear mounted on the third rotating shaft, a second belt drivingly connected to the outer surfaces of the third and fourth pulleys, a first toothed ring mounted on the first filter ring outside the housing, and a second toothed ring mounted on the second filter ring outside the housing, both the first and second toothed rings meshing with the gears for transmission.

[0013] Preferably, the first filter ring is provided with a plurality of first filter holes, and the second filter ring is provided with a plurality of second filter holes, wherein the diameter of the plurality of first filter holes is larger than the diameter of the plurality of second filter holes.

[0014] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0015] This utility model separates the first filter ring and the second filter ring by a first partition plate and a second partition plate, so that multiple filtration spaces are formed inside the housing. This achieves multi-layer filtration and makes full use of the two filter screens, that is, the utilization rate of the filter rings is high. In addition, the two filter rings are rotating. Even if a certain position of the filter ring is blocked during operation, the unblocked filter ring can be used to filter the exhaust gas in time, which greatly improves the exhaust gas filtration efficiency.

[0016] This invention uses a rotating plate to drive multiple suction plates on it to rotate, which can scrape and clean the impurities on the inner and outer surfaces of the first and second filter rings. At the same time, it can collect the impurities in conjunction with a dust pump. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is the right view of the present invention;

[0019] Figure 3 for Figure 2 A three-dimensional sectional view at point AA;

[0020] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 for Figure 2 A three-dimensional sectional view at point BB;

[0022] Figure 6 This is a three-dimensional diagram of the linkage mechanism.

[0023] In the diagram: Support base 1, Housing 2, First partition plate 3, Second partition plate 4, First filter ring 5, Second filter ring 6, First opening 7, Second opening 8, Third opening 9, Inlet pipe 10, Exhaust pipe 11, Base 12, Motor 13, Suction plate 14, Second cavity 15, Suction hole 16, Rotating plate 17, First cavity 18, Connecting frame 19, Dust pump 20, Dust suction pipe 21, Fixed shaft 22, Guide groove 23, First rotating shaft 24, Guide rod 25, Sealing plate 26, First pulley 27, Second rotating shaft 28, Second pulley 29, First belt 30, Third pulley 31, Third rotating shaft 32, Fourth pulley 33, Gear 34, Second belt 35, First toothed ring 36, Second toothed ring 37, First filter hole 38, Second filter hole 39. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Reference Appendix Figure 1 Appendix Figure 2 As shown, a waste gas filtration device for stainless steel production includes a support base 1 and a housing 2. A first partition plate 3 and a second partition plate 4 are fixedly and alternately arranged inside the housing 2. A first filter ring 5 and a second filter ring 6 are rotatably arranged between the first partition plate 3 and the second partition plate 4. The diameter of the first filter ring 5 is larger than the diameter of the second filter ring 6. The second filter ring 6 has a first opening 7 and a second opening 8 mirrored on the first partition plate 3. The first filter ring 5 has a third opening 9 on the second partition plate 4. An air inlet pipe 10 and an exhaust pipe 11 are provided on the housing 2. A dust collection mechanism is provided between the first filter ring 5 and the second filter ring 6. The dust collection mechanism is equipped with a linkage mechanism.

[0026] The first partition plate 3 and the second partition plate 4 divide the interior of the housing 2 into four filtration spaces. Through the distribution of the openings and the secondary annular arrangement of the first filter ring 5 and the second filter ring 6, an eight-layer filtration is formed. In this relationship, the space closest to the intake pipe 10 is the first filtration space, the space facing upwards is the second filtration space, the space furthest from the intake pipe 10 is the third filtration space, and the space closest to the exhaust pipe 11 is the fourth filtration space. The first filtration space and the second filtration space are located at the junction of the first filtration space and the second filtration space, which is inside the second filter ring 6, i.e., on the first partition plate 3, and the third filtration space 7 is located at the junction of the second filtration space and the third filtration space, which is outside the first filter ring 5, on the second partition plate 4. The second filtration space 8 is located at the junction of the third filtration space and the fourth filtration space, which is inside the second filter ring 6, i.e., on the other side of the first partition plate 3.

[0027] When exhaust gas needs to be filtered, the exhaust gas can enter the housing 2 through the air inlet pipe 10, and then be filtered by the first filter ring 5 and the second filter ring 6. Since the first partition plate 4 and the second partition plate 5 divide the housing 2 into four filtration spaces, the exhaust gas passes through the first opening 7, the second opening 8 and the third opening 9 in sequence, and completes multiple contacts with the first filter ring 5 and the second filter ring 6 in the four filtration spaces. In this process, it is equivalent to the exhaust gas passing through eight layers of filtration, and finally it is discharged from the exhaust pipe 11, thereby achieving the effect of multi-layer filtration of exhaust gas. This not only makes the utilization rate of the first filter ring 5 and the first filter ring 6 high, but also greatly improves the filtration efficiency of exhaust gas. With the help of the dust collection mechanism, the first filter ring 5 and the second filter ring 6 can also be cleaned.

[0028] For details, please refer to the appendix. Figure 2 Appendix Figure 4 Appendix Figure 5 As shown, the vacuuming mechanism includes multiple suction plates 14 disposed on the inner and outer circles of the first filter ring 5 and the second filter ring 6. Each suction plate 14 contains a second cavity 15 and multiple suction holes 16. One end of each suction plate 14 extends out of the housing 2, and a rotating plate 17 is connected to the end of the suction plate 14 extending out of the housing 2. A first cavity 18 is disposed within the rotating plate 17, and the first cavity 18 communicates with the second cavity 15. In this configuration, the end faces of the multiple suction plates 14 with suction holes 16 are all in contact with the inner and outer surfaces of the first filter ring 5 and the second filter ring 6. When the first filter ring 5 and the second filter ring 6 need cleaning, the rotating plate 17 reciprocates around the center of the housing 2, thereby driving the multiple suction plates 14 on the rotating plate 17 to reciprocate. The multiple suction plates 14 scrape and clean the inner and outer surfaces of the first filter ring 5 and the second filter ring 6, while simultaneously sucking away impurities from these two filter rings through the multiple suction holes 16, thus achieving the cleaning and collection of impurities.

[0029] For details, please refer to the appendix. Figure 3 Appendix Figure 5 As shown, the vacuuming mechanism also includes a connecting frame 19 mounted on the housing 2. A vacuum pump 20 is mounted on the connecting frame 19. A vacuum pipe 21 is rotatably connected to the output end of the vacuum pump 20. One end of the vacuum pipe 21 is connected to the first cavity 18 inside the rotating plate 17. When the vacuum pump 20 is started, impurities pass through multiple suction holes 16, the second cavity 15, the first cavity 18, and the vacuum pipe 21 in sequence, and then enter through the output end of the vacuum pump 20, thereby realizing the cleaning and collection of impurities.

[0030] For details, please refer to the appendix. Figure 6As shown, the vacuuming mechanism also includes a fixed shaft 22 connected to the housing 2. The fixed shaft 22 is rotatably connected to the rotating plate 17. The rotating plate 17 is provided with a guide groove 23. A first rotating shaft 24 is rotatably provided on the connecting frame 19. One end of the first rotating shaft 24 is provided with a guide rod 25. The other end of the guide rod 25 is located in the guide groove 23. The guide rod 25 is L-shaped. A base 12 is provided on the connecting frame 19. A motor 13 for driving the fixed shaft 22 to rotate is provided on the base 12.

[0031] The motor 13 is started and will not be described in detail here. The motor 13 drives the first rotating shaft 24 to rotate. When the first rotating shaft 24 rotates, it drives the guide rod 25 on it to rotate. The guide groove 23 limits the guide rod 25. When the guide rod 25 rotates, it drives the rotating plate 17 to swing back and forth around the fixed shaft 22. Then it drives the multiple suction plates 14 on it to swing back and forth, so as to scrape the impurities on the inner and outer surfaces of the first filter ring 5 and the second filter ring 6. At the same time, the dust pump 20 can collect the impurities.

[0032] For details, please refer to the appendix. Figure 5 As shown, a sealing plate 26 is provided on the outside of the suction plate 14 extending out of the housing 2; when the suction plate 14 swings back and forth, it drives the sealing plate 26 on it to swing back and forth, and the sealing plate 26 ensures a good sealing effect inside the housing 2.

[0033] For details, please refer to the appendix. Figure 1 Appendix Figure 6 As shown, the linkage mechanism includes a first pulley 27 mounted on a first rotating shaft 24, a second rotating shaft 28 rotatably mounted on the housing 2, a second pulley 29 mounted on the second rotating shaft 28, a first belt 30 drivingly connected to the outer surfaces of the first pulley 27 and the second pulley 29, a third pulley 31 mounted on the other end of the second rotating shaft 28, a third rotating shaft 32 rotatably mounted on the housing 2, a fourth pulley 33 and a gear 34 mounted on the third rotating shaft 32, a second belt 35 drivingly connected to the outer surfaces of the third pulley 31 and the fourth pulley 33, a first toothed ring 36 mounted on the first filter ring 5 outside the housing 2, and a second toothed ring 37 mounted on the second filter ring 6 outside the housing 2. Both the first toothed ring 36 and the second toothed ring 37 mesh with the gear 34 for transmission.

[0034] When the first rotating shaft 24 rotates, it drives the first pulley 27 on it to rotate, which in turn drives the first belt 30 to rotate. The rotation of the first belt 30 drives the second pulley 29 to rotate, which in turn drives the second rotating shaft 28 to rotate. This causes the third pulley 31 to be driven by the second rotating shaft 28, which in turn drives the second belt 35 outside the third pulley 31 to rotate, which in turn drives the fourth pulley 33 on one side of the second belt 35 to rotate. This then drives the third rotating shaft 32 and the gear 34 to rotate. Since the gear 34 meshes with the first gear ring 36 and the second gear ring 37 respectively, when the gear 34 rotates, it can drive the first gear ring 36 and the second gear ring 37 to rotate, which in turn drives the first filter ring 5 and the second filter ring 6 to rotate, completing the transmission work and making the overall structure continuous. Furthermore, when the first filter ring 5 and the second filter ring 6 rotate, they can drive the exhaust gas inside the housing 2 to flow, further improving the exhaust gas filtration efficiency.

[0035] For details, please refer to the appendix. Figure 3 As shown, the first filter ring 5 is provided with a plurality of first filter holes 38, and the second filter ring 6 is provided with a plurality of second filter holes 39. The diameter of the plurality of first filter holes 38 is larger than the diameter of the plurality of second filter holes 39; thus, while achieving layer-by-layer filtration, it can filter impurities of different particle sizes, thereby resulting in a high pass rate of the filtered exhaust gas.

[0036] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0038] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A waste gas filtering device for stainless steel production, comprising a support seat (1), a housing (2), characterized in that, The housing (2) is provided with a first partition plate (3) and a second partition plate (4) fixedly arranged in an alternating manner. A first filter ring (5) and a second filter ring (6) are rotatably arranged between the first partition plate (3) and the second partition plate (4). The diameter of the first filter ring (5) is larger than the diameter of the second filter ring (6). The second filter ring (6) is provided with a first opening (7) and a second opening (8) mirrored on the first partition plate (3). The first filter ring (5) is provided with a third opening (9) on the second partition plate (4). The housing (2) is provided with an air inlet pipe (10) and an exhaust pipe (11). A dust collection mechanism is provided between the first filter ring (5) and the second filter ring (6). The dust collection mechanism is provided with a linkage mechanism.

2. A waste gas filtering device for stainless steel production according to claim 1, characterized in that, The dust collection mechanism includes multiple suction plates (14) disposed on the inner and outer circles of the first filter ring (5) and the second filter ring (6). A second cavity (15) is disposed inside the suction plate (14). Multiple suction holes (16) are provided on the suction plate (14). One end of the suction plate (14) extends out of the housing (2). A rotating plate (17) is connected to the end of the suction plate (14) extending out of the housing (2). A first cavity (18) is disposed inside the rotating plate (17). The first cavity (18) and the second cavity (15) are interconnected.

3. A waste gas filtering device for stainless steel production according to claim 2, characterized in that, The vacuuming mechanism also includes a connecting frame (19) disposed on the housing (2), a vacuum pump (20) is disposed on the connecting frame (19), a vacuum pipe (21) is rotatably connected to the output end of the vacuum pump (20), and one end of the vacuum pipe (21) is connected to the first cavity (18) inside the rotating plate (17).

4. A waste gas filtering device for stainless steel production according to claim 3, characterized in that, The dust collection mechanism also includes a fixed shaft (22) connected to the housing (2). The fixed shaft (22) is rotatably connected to the rotating plate (17). The rotating plate (17) is provided with a guide groove (23). The connecting frame (19) is rotatably provided with a first rotating shaft (24). One end of the first rotating shaft (24) is provided with a guide rod (25). The other end of the guide rod (25) is located in the guide groove (23). The guide rod (25) is L-shaped.

5. A waste gas filtering device for stainless steel production according to claim 2, characterized in that, A sealing plate (26) is provided on the outside of the suction plate (14) extending out of the housing (2).

6. A waste gas filtering device for stainless steel production according to claim 1, characterized in that, The linkage mechanism includes a first pulley (27) mounted on a first rotating shaft (24), a second rotating shaft (28) rotatably mounted on the housing (2), a second pulley (29) mounted on the second rotating shaft (28), a first belt (30) drivingly connected to the outer surfaces of the first pulley (27) and the second pulley (29), a third pulley (31) mounted on the other end of the second rotating shaft (28), a third rotating shaft (32) rotatably mounted on the housing (2), a fourth pulley (33) and a gear (34) mounted on the third rotating shaft (32), a second belt (35) drivingly connected to the outer surfaces of the third pulley (31) and the fourth pulley (33), a first toothed ring (36) mounted on the first filter ring (5) outside the housing (2), and a second toothed ring (37) mounted on the second filter ring (6) outside the housing (2). The first toothed ring (36) and the second toothed ring (37) mesh with the gear (34) for transmission.

7. A waste gas filtering device for stainless steel production according to claim 1, characterized in that, The first filter ring (5) is provided with a plurality of first filter holes (38), and the second filter ring (6) is provided with a plurality of second filter holes (39). The diameter of the plurality of first filter holes (38) is larger than the diameter of the plurality of second filter holes (39).

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