Tail gas treatment system for aluminum alloy production line

Abstract

The utility model relates to the technical field of aluminum alloy production, in particular to an aluminum alloy production line tail gas treatment system which comprises a spray tower, a gas inlet pipe is arranged on one side of the spray tower, and the bottom of one side of the spray tower is fixedly connected with a first flange communicated with the interior of the spray tower. A second flange is fixedly connected to the periphery of the end, close to the spray tower, of the gas inlet pipe, a sealing assembly is arranged at the joint of the first flange and the second flange, the other end of the gas inlet pipe is fixedly connected with a gas collecting hood communicated with the gas inlet pipe, and a mounting frame is fixedly connected to the top of the gas collecting hood; supporting legs are arranged below the end, away from the gas collecting hood, of the mounting frame, and a lifting assembly is arranged between the supporting legs and the mounting frame. According to the utility model, the sealing performance between the spray tower and the gas inlet pipe can be effectively enhanced, so that the influence of tail gas leakage on the external environment is avoided, the tail gas of different equipment can be collected and treated by adjusting the height of the gas collecting hood, and the application range is wider.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy production technology, and in particular to an exhaust gas treatment system for an aluminum alloy production line. Background Technology

[0002] Aluminum alloys are lightweight metallic materials formed by adding other alloying elements to aluminum. They are classified into wrought aluminum alloys and cast aluminum alloys according to processing methods, and further subdivided into pure aluminum and various alloy systems according to chemical composition. They possess physical properties such as low density, moderate melting point, and good thermal conductivity. Through optimization, they can achieve high strength and good toughness, and the surface oxide film provides excellent corrosion resistance. Production processes encompass smelting, casting, machining, and surface treatment. Due to their superior performance, they are widely used in numerous fields such as aerospace, automotive, construction, electronics, and shipbuilding, including aircraft structural components, automobile bodies, building doors and windows, electronic heat sinks, and ship components.

[0003] The production of aluminum alloys generates a large amount of exhaust gas, which requires the use of spray towers to collect and treat. However, most current spray towers are sealed to the air inlet pipe with gaskets. Although this method is low-cost, the gaskets deform over time, leading to insufficient sealing and leakage of exhaust gas into the environment. Furthermore, it lacks a mechanism to adjust the height of the gas collection hood, making it impossible to collect and treat exhaust gas from equipment at different heights, thus limiting its applicability. Therefore, this application proposes an exhaust gas treatment system for aluminum alloy production lines to meet the requirements. Utility Model Content

[0004] In order to overcome the shortcomings of existing devices, such as insufficient sealing leading to exhaust gas leakage and inability to adjust the height of the gas collection hood, this utility model provides an exhaust gas treatment system for aluminum alloy production lines.

[0005] The technical implementation scheme of this utility model is as follows: an exhaust gas treatment system for an aluminum alloy production line, including a spray tower. An air inlet pipe is provided on one side of the spray tower. A first flange communicating with the interior of the spray tower is fixedly connected to the bottom of one side of the spray tower. A second flange is fixedly connected to the outer periphery of the end of the air inlet pipe near the spray tower. A sealing component is provided at the connection between the first flange and the second flange. A gas collecting hood communicating with the other end of the air inlet pipe is fixedly connected to the gas collecting hood. A mounting frame is fixedly connected to the top of the gas collecting hood. A support leg is provided below the end of the mounting frame away from the gas collecting hood. A lifting component is provided between the support leg and the mounting frame.

[0006] Optionally, the sealing assembly includes a sealing groove, a mounting groove, and a sealing ring. The sealing groove is formed on the surface of the first flange near the second flange, and the mounting groove is formed on the surface of the second flange near the first flange. The sealing ring is made of rubber and is hollow inside. The sealing ring is installed inside the mounting groove and, after expansion, adapts to the size of the sealing groove.

[0007] Optionally, the sealing assembly further includes an air chamber, a piston, and a connecting hole. The air chamber is located inside the second flange, the piston is slidably connected to the air chamber and is sized to match it, and the connecting hole is located on the inner wall of one end of the air chamber and communicates with the sealing ring.

[0008] Optionally, the sealing assembly further includes a first groove, a first slider, a first spring, and a connecting rod. The first groove is formed on the surface of the second flange away from the first flange and is connected to one end of the air chamber. The first slider is slidably connected to the first groove. The first spring is installed inside the first groove and its two ends are respectively fixedly connected to the inner wall of the first slider away from the air chamber and the side of the first groove away from the air chamber. The connecting rod is movably connected to the air chamber and the first groove and its two ends are respectively fixedly connected to the first slider and the piston.

[0009] Optionally, the lifting assembly includes a lifting groove, a vertical plate, a lifting plate, fixing holes, a through groove, and a fixing rod. The lifting groove is opened on one side surface of the support leg. The vertical plate is fixedly connected to the bottom of the mounting frame away from the gas collection hood. The lifting plate is fixedly connected to one side of the vertical plate and slidably connected to the lifting groove. Several sets of fixing holes are provided and penetrate through the lifting plate. The through groove penetrates the inner wall of the lifting groove near the top. The fixing rod is movably connected to the through groove and is adapted to the size of the fixing holes.

[0010] Optionally, the lifting assembly further includes a second slide groove, a second slider, a second spring, and a pull block. The second slide groove is formed on the inner wall of the through groove. The second slider is fixedly connected to the outer periphery of the fixed rod and slidably connected to the second slide groove. The second spring is sleeved on the outer periphery of the fixed rod and its two ends are respectively fixedly connected to the inner wall of the second slider on the side away from the lifting groove and the side of the slide groove away from the lifting groove. The pull block is fixedly connected to the outer end of the fixed rod.

[0011] This utility model has the following advantages:

[0012] 1. This utility model incorporates a sealing assembly. A first slider slides along a first groove, compressing a first spring. During this process, a connecting rod drives a piston to slide synchronously along the air chamber with the first slider, drawing air from the sealing ring into the air chamber through a connecting hole. When the sealing ring deflates and is submerged in the mounting groove, the first flange and the second flange are connected by bolts. Then, the first slider is released, the first spring rebounds, and through the first slider and connecting rod, the piston moves in the opposite direction, sending air from the air chamber into the sealing ring. When the sealing ring expands to fit tightly against the sealing groove, it seals the connection between the first and second flanges. This design effectively enhances the sealing between the spray tower and the air inlet pipe, thus preventing exhaust gas leakage from impacting the external environment.

[0013] 2. This utility model features a lifting assembly. Pulling the pull block outward causes it to slide the second slider along the second groove via a fixed rod, compressing the second spring. When the fixed rod moves out of the fixed hole, the lifting plate slides along the lifting groove, causing the gas collection hood to rise and fall synchronously via the vertical plate and mounting bracket. When the gas collection hood reaches the appropriate height, the pull block is released, the second spring rebounds, and the fixed rod moves inward via the second slider. When the fixed rod is inserted into the fixed hole at the current height, the lifting plate is fixed at the current height, thus fixing the gas collection hood at the current height. This design allows the device to collect and treat exhaust gases from different equipment by adjusting the height of the gas collection hood, thus broadening its applicability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the first flange structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the second flange structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealing component structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the lifting component structure of this utility model. Figure 1 ;

[0019] Figure 6 This is a schematic diagram of the lifting component structure of this utility model. Figure 2 .

[0020] The meanings of the reference numerals in the figure are as follows: 1. Spray tower; 2. Air inlet pipe; 3. First flange; 4. Second flange; 5. Sealing assembly; 51. Sealing groove; 52. Mounting groove; 53. Sealing ring; 54. Air chamber; 55. Piston; 56. Connecting hole; 57. First slide groove; 58. First slider; 59. First spring; 510. Connecting rod; 6. Gas collection hood; 7. Mounting bracket; 8. Support leg; 9. Lifting assembly; 91. Lifting groove; 92. Vertical plate; 93. Lifting plate; 94. Fixing hole; 95. Through groove; 96. Fixing rod; 97. Second slide groove; 98. Second slider; 99. Second spring; 910. Pull block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, a further detailed description of this utility model will be provided below in conjunction with the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in this document are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0022] A tail gas treatment system for an aluminum alloy production line includes a spray tower 1. An air inlet pipe 2 is provided on one side of the spray tower 1. A first flange 3, which communicates with the interior of the spray tower 1, is fixedly connected to the bottom of one side of the spray tower 1. A second flange 4 is fixedly connected to the outer periphery of the end of the air inlet pipe 2 near the spray tower 1. A sealing component 5 is provided at the connection between the first flange 3 and the second flange 4. A gas collecting hood 6, which communicates with the other end of the air inlet pipe 2, is fixedly connected to the other end of the air collecting hood 6. A mounting frame 7 is fixedly connected to the top of the gas collecting hood 6. A support leg 8 is provided below the end of the mounting frame 7 away from the gas collecting hood 6. A lifting component 9 is provided between the support leg 8 and the mounting frame 7.

[0023] It should be noted that the sealing component 5 can seal the connection between the air inlet pipe 2 and the spray tower 1, effectively preventing exhaust gas from leaking into the outside world and causing environmental pollution. The lifting component 9 can adjust the height of the gas collection hood 6, so that it can collect exhaust gas from different equipment.

[0024] like Figure 2 and Figure 3 As shown, the sealing assembly 5 includes a sealing groove 51, a mounting groove 52, and a sealing ring 53. The sealing groove 51 is formed on the side surface of the first flange 3 near the second flange 4, and the mounting groove 52 is formed on the side surface of the second flange 4 near the first flange 3. The sealing ring 53 is made of rubber and is hollow inside. The sealing ring 53 is installed inside the mounting groove 52 and, after expansion, matches the size of the sealing groove 51.

[0025] It should be noted that after connecting the first flange 3 and the second flange 4, air is injected into the sealing ring 53 to make it expand. When the sealing ring 53 and the sealing groove 51 are tightly fitted, the connection between the first flange 3 and the second flange 4 can be sealed.

[0026] like Figure 4 As shown, the sealing assembly 5 also includes an air chamber 54, a piston 55, and a connecting hole 56. The air chamber 54 is opened inside the second flange 4. The piston 55 is slidably connected to the air chamber 54 and is sized to match it. The connecting hole 56 is opened on the inner wall of one end of the air chamber 54 and is connected to the sealing ring 53.

[0027] It should be noted that by sliding the piston 55 along the air chamber 54, air can be sent from the air chamber 54 to the sealing ring 53 through the connecting hole 56, or air in the sealing ring 53 can be drawn into the air chamber 54.

[0028] like Figure 4 As shown, the sealing assembly 5 also includes a first slide groove 57, a first slider 58, a first spring 59, and a connecting rod 510. The first slide groove 57 is formed on the surface of the second flange 4 away from the first flange 3 and is connected to one end of the air cavity 54. The first slider 58 is slidably connected to the first slide groove 57. The first spring 59 is installed inside the first slide groove 57 and its two ends are respectively fixedly connected to the side of the first slider 58 away from the air cavity 54 and the inner wall of the first slide groove 57 away from the air cavity 54. The connecting rod 510 is movably connected to the air cavity 54 and the first slide groove 57 and its two ends are respectively fixedly connected to the first slider 58 and the piston 55.

[0029] It should be noted that when the first slider 58 slides along the first groove 57 to compress the first spring 59, the connecting rod 510 will drive the piston 55 to slide synchronously along the air chamber 54 with the first slider 58. When the first slider 58 is released, the first spring 59 will rebound and drive the piston 55 to slide in the opposite direction through the first slider 58 and the connecting rod 510.

[0030] like Figure 5 and Figure 6 As shown, the lifting assembly 9 includes a lifting groove 91, a vertical plate 92, a lifting plate 93, a fixing hole 94, a through groove 95, and a fixing rod 96. The lifting groove 91 is opened on one side surface of the support leg 8. The vertical plate 92 is fixedly connected to the bottom of the mounting frame 7 away from the gas collection hood 6. The lifting plate 93 is fixedly connected to one side of the vertical plate 92 and slidably connected to the lifting groove 91. Several sets of fixing holes 94 are provided and penetrate through the lifting plate 93. The through groove 95 penetrates the inner wall of the lifting groove 91 near the top. The fixing rod 96 is movably connected to the through groove 95 and is adapted to the size of the fixing hole 94.

[0031] It should be noted that by removing the fixing rod 96 from the fixing hole 94, the lifting plate 93 can be slid along the lifting groove 91 to adjust the height of the gas collection hood 6. By inserting the fixing rod 96 into the fixing hole 94, the gas collection hood 6 can be fixed at the current height.

[0032] like Figure 6As shown, the lifting assembly 9 also includes a second slide groove 97, a second slider 98, a second spring 99, and a pull block 910. The second slide groove 97 is formed in the inner wall of the through groove 95. The second slider 98 is fixedly connected to the outer periphery of the fixed rod 96 and slidably connected to the second slide groove 97. The second spring 99 is sleeved on the outer periphery of the fixed rod 96 and its two ends are respectively fixedly connected to the inner wall of the second slider 98 on the side away from the lifting groove 91 and the side of the second slide groove 97 on the side away from the lifting groove 91. The pull block 910 is fixedly connected to the outer end of the fixed rod 96.

[0033] It should be noted that pulling the pull block 910 outward will cause the second slider 98 to slide outward along the second slide groove 97 via the fixed rod 96 and compress the second spring 99. Releasing the pull block 910 will cause the second spring 99 to rebound, which will then cause the fixed rod 96 to move inward via the second slider 98.

[0034] In a specific application scenario, when connecting the air inlet pipe 2 and the spray tower 1, the first slider 58 is first slid along the first groove 57 to compress the first spring 59. During this process, the connecting rod 510 drives the piston 55 to slide synchronously along the air chamber 54 with the first slider 58 and draws the air in the sealing ring 53 into the air chamber 54 through the connecting hole 56. When the sealing ring 53 deflates and is submerged in the mounting groove 52, the first flange 3 and the second flange 4 are connected by bolts. Then, the first slider 58 is released, the first spring 59 rebounds, and through the first slider 58 and the connecting rod 510, the piston 55 moves in the opposite direction and sends the air in the air chamber 54 into the sealing ring 53. When the sealing ring 53 expands to fit tightly with the sealing groove 51, the connection between the first flange 3 and the second flange 4 is sealed. Then, the exhaust gas can be sprayed for treatment. When exhaust gas treatment is required for equipment at different heights, pull the pull block 910 outward so that it drives the second slider 98 to slide outward along the second slide groove 97 via the fixed rod 96 and compress the second spring 99. When the fixed rod 96 moves out of the fixed hole 94, slide the lifting plate 93 along the lifting groove 91 so that it drives the gas collection hood 6 to rise and fall synchronously via the vertical plate 92 and the mounting bracket 7. When the gas collection hood 6 rises and falls to the appropriate height, release the pull block 910. The second spring 99 rebounds and drives the fixed rod 96 to move inward via the second slider 98. When the fixed rod 96 is inserted into the fixed hole 94 at the current height, the lifting plate 93 can be fixed at the current height, and then the gas collection hood 6 can be fixed at the current height. At this time, the exhaust gas of the new equipment can be collected and treated.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An aluminium alloy production line off-gas treatment system comprising a spray tower (1), characterised in that, The side of the spray tower (1) is provided with an air inlet pipe (2), the bottom of the side of the spray tower (1) is fixedly connected with a first flange (3) which is communicated with the inside of the spray tower (1), the outer periphery of the end of the air inlet pipe (2) close to the spray tower (1) is fixedly connected with a second flange (4), the connecting part of the first flange (3) and the second flange (4) is provided with a sealing assembly (5), the other end of the air inlet pipe (2) is fixedly connected with a gas collecting cover (6) which is communicated with the air inlet pipe (2), the top of the gas collecting cover (6) is fixedly connected with a mounting frame (7), the end of the mounting frame (7) away from the gas collecting cover (6) is provided with a supporting leg (8) below, the supporting leg (8) and the mounting frame (7) are provided with a lifting assembly (9) therebetween, the sealing assembly (5) comprises a sealing groove (51), a mounting groove (52) and a sealing ring (53), the sealing groove (51) is opened in the side surface of the first flange (3) close to the second flange (4), the mounting groove (52) is opened in the side surface of the second flange (4) close to the first flange (3), the sealing ring (53) is hollow inside and made of rubber, the sealing ring (53) is installed inside the mounting groove (52) and expanded to be matched with the size of the sealing groove (51), the sealing assembly (5) further comprises an air cavity (54), a piston (55) and a connecting hole (56), the air cavity (54) is opened in the second flange (4), the piston (55) is slidingly connected with the air cavity (54) and matched in size, the connecting hole (56) is opened in the side inner wall of one end of the air cavity (54) and communicated with the sealing ring (53), the sealing assembly (5) further comprises a first sliding groove (57), a first sliding block (58), a first spring (59) and a connecting rod (510), the first sliding groove (57) is opened in the side surface of the second flange (4) away from the first flange (3) and communicated with one end of the air cavity (54), the first sliding block (58) is slidingly connected with the first sliding groove (57), the first spring (59) is installed inside the first sliding groove (57) and fixedly connected with the first sliding block (58) away from the air cavity (54) and the side inner wall of the first sliding groove (57) away from the air cavity (54) at two ends respectively, the connecting rod (510) is movably connected with the air cavity (54) and the first sliding groove (57) and fixedly connected with the first sliding block (58) and the piston (55) at two ends respectively.

2. An aluminum alloy production line exhaust gas treatment system according to claim 1, characterized by, The lifting assembly (9) comprises a lifting groove (91), a vertical plate (92), a lifting plate (93), a fixing hole (94), a through groove (95) and a fixing rod (96), the lifting groove (91) is opened in the side surface of the supporting leg (8), the vertical plate (92) is fixedly connected with the bottom of the end of the mounting frame (7) away from the gas collecting cover (6), the lifting plate (93) is fixedly connected with the side of the vertical plate (92) and slidingly connected with the lifting groove (91), the fixing hole (94) is provided with a plurality of groups and penetrates through the lifting plate (93), the through groove (95) penetrates through the side inner wall of the lifting groove (91) close to the top, and the fixing rod (96) is movably connected with the through groove (95) and matched in size with the fixing hole (94).

3. An aluminum alloy production line exhaust gas treatment system according to claim 2, characterized by, The lifting assembly (9) further comprises a second sliding groove (97), a second sliding block (98), a second spring (99) and a pulling block (910), the second sliding groove (97) is arranged on the inner wall of the through groove (95), the second sliding block (98) is fixedly connected to the outer periphery of the fixed rod (96) and is slidingly connected to the second sliding groove (97), the second spring (99) is sleeved on the outer periphery of the fixed rod (96) and has two ends fixedly connected to the side of the second sliding block (98) away from the lifting groove (91) and the inner wall of the side of the second sliding groove (97) away from the lifting groove (91) respectively, and the pulling block (910) is fixedly connected to the outer end of the fixed rod (96).

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