A multi-layer exhaust gas filtration device

Abstract

This utility model provides a multi-layer exhaust gas filtration device, relating to the field of exhaust gas treatment technology. It includes a main frame, filter chambers, an air supply pipe, and an air inlet pipe. The filter chambers consist of a lower chamber and an upper chamber, each containing different fillers. A connecting assembly connects the lower and upper chambers. The device encloses the fillers in the lower and upper chambers, inserts a connecting shaft into the connecting holes in the lower and upper chambers, and then tightens the upper fixing sleeve on the outside of the connecting bolt. The fixing sleeve engages with the outer edge of the top of the connecting shaft to clamp the lower and upper chambers, connecting them as a single unit to form the filter chamber. Furthermore, by unscrewing the fixing sleeve in the connecting assembly of a single filter chamber, the individual filter chamber can be disassembled without disassembling the entire device. This solves the problems of high costs associated with overall disassembly during installation and maintenance, large space requirements, inconsistent filter media lifespans requiring targeted replacement, and high management difficulty in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a multi-layer waste gas filtration device. Background Technology

[0002] Waste gas filtration devices are key equipment in the environmental protection field, effectively purifying waste gas emitted during industrial production. They employ a multi-layer filtration structure, such as a pre-filter to intercept large particles, and high-efficiency filter media to adsorb harmful gases and fine particles. Some devices are also equipped with an activated carbon layer to further remove odors. Their compact design and flexible installation allow them to adapt to different working conditions. After treatment, the waste gas meets emission standards, significantly reducing pollution to the atmospheric environment and helping enterprises achieve green and sustainable development.

[0003] While multi-layer exhaust gas filtration devices improve purification efficiency, they also have significant drawbacks: their integrated structure requires overall disassembly for installation and maintenance, resulting in high costs; they occupy a large space; the lifespan of each filter layer varies, necessitating targeted replacement and making management difficult; furthermore, airflow resistance increases as it passes through multiple layers, leading to higher energy consumption; and if a layer fails and is not detected in time, the burden on subsequent layers increases, potentially affecting overall filtration performance and even causing emissions to fail to meet standards. Therefore, this utility model proposes a multi-layer exhaust gas filtration device to address the aforementioned problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a multi-layer exhaust gas filtration device to solve the issues of high costs associated with overall disassembly during installation and maintenance, large space occupation, inconsistent lifespan of each filter layer requiring targeted replacement, and high management difficulty in the existing technology.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a multi-layer exhaust gas filtration device, including a main frame, a filter chamber, an air supply pipe and an air inlet pipe. The main frame is symmetrically provided with clamping mechanisms on both sides, and multiple filter chambers are installed on the clamping mechanisms. The top of the upper filter chamber is connected to the air supply pipe, and the bottom of the lower filter chamber is connected to the air inlet pipe. The filter chamber includes a lower hopper and an upper hopper, and each filter chamber is provided with different fillers. A connecting component is provided between the lower hopper and the upper hopper.

[0006] A further improvement is that the connecting assembly includes a connecting shaft, a connecting bolt, and a fixing sleeve. Multiple connecting holes are distributed in a ring on the outer sides of the lower bucket and the upper bucket. A connecting shaft is inserted into the inside of the connecting holes. A connecting bolt is fixedly connected to the bottom end of the connecting shaft. A fixing sleeve is threaded onto the outer wall of the connecting bolt.

[0007] A further improvement is that the diameter of the fixing sleeve is larger than the diameter of the connecting shaft, and an anti-slip strip is provided on the outer side of the fixing sleeve.

[0008] A further improvement is that the filler has symmetrical slots on both sides, and the upper hopper has symmetrically fixed blocks on both sides, with the outer wall of the blocks engaging with the inner wall of the slots.

[0009] A further improvement is made in that: the clamping mechanism includes a fixed support plate, a movable support plate, and a threaded rod. Fixed support plates are symmetrically fixedly connected to both sides of the bottom of the main frame, and threaded rods are symmetrically threadedly connected to both sides of the top of the main frame. Movable support plates are symmetrically slidably connected to both sides of the top of the main frame, and the top end of the threaded rod passes through one side of the movable support plate and is threadedly connected to it.

[0010] A further improvement is that the fixed tray and the movable tray are designed as rectangular claw structures, with the top of the fixed tray fitting against the bottom of the lower hopper in the lower filter chamber, and the bottom of the movable tray fitting against the top of the upper hopper in the upper filter chamber.

[0011] Further improvements include: the air inlet pipe is designed as a bent structure, the bottom of the two lower buckets above is provided with countersunk holes, the top of the air delivery pipe is inserted into the countersunk holes, and the top of the air delivery pipe is fitted with a sealing ring. Electromagnetic valves are provided on the air delivery pipe and the air inlet pipe.

[0012] The beneficial effects of this utility model are as follows: the lower and upper bucket bodies enclose the filler, and then the connecting shaft is inserted into the connecting holes in the lower and upper bucket bodies. Next, the upper fixing sleeve is tightened on the outside of the connecting bolt. The fixing sleeve and the outer edge of the top of the connecting shaft cooperate to clamp the lower and upper bucket bodies, thereby connecting the lower and upper bucket bodies into one unit to form a filter chamber. Furthermore, by unscrewing the fixing sleeve in the connecting assembly of a single filter chamber, the single filter chamber can be disassembled without disassembling the entire device. This solves the problems of high cost, large space occupation, inconsistent lifespan of each filter layer, and difficulty in management associated with the existing technology, which requires overall disassembly for installation and maintenance. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the filter mechanism structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection component structure of this utility model.

[0016] The components are: 1. Main frame; 2. Filter chamber; 3. Air supply pipe; 4. Air inlet pipe; 5. Connecting assembly; 6. Lower bucket; 7. Upper bucket; 8. Packing material; 9. Connecting hole; 10. Connecting shaft; 11. Connecting bolt; 12. Fixing sleeve; 13. Fixing support plate; 14. Movable support plate; 15. Threaded rod. Detailed Implementation

[0017] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0018] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a multi-layer exhaust gas filtration device, including a main frame 1, filter chambers 2, air supply pipes 3, and air inlet pipes 4. The main frame 1 is symmetrically provided with clamping mechanisms on both sides, and multiple filter chambers 2 are installed on the clamping mechanisms. The top of the upper filter chamber 2 is connected to the air supply pipe 3, and the bottom of the lower filter chamber 2 is connected to the air inlet pipe 4. The filter chamber 2 includes a lower bucket 6 and an upper bucket 7, and each filter chamber 2 is provided with different packing material 8 inside. A connecting component 5 is provided between the lower bucket 6 and the upper bucket 7, and the lower bucket 6 and the upper bucket 7 are connected as a whole to form a filter chamber 2 through the connecting component 5. Then, multiple filter chambers 2 are fixed to the inside of the main frame 1 by the clamping mechanisms, and multiple filter chambers 2 are connected in series by air supply pipes 3. Exhaust gas is then transported to the interior of multiple filter chambers 2 through the air inlet pipes 4. The exhaust gas is filtered by the packing material 8 inside the multiple filter chambers 2 to purify the exhaust gas and make it meet the emission standards.

[0019] The connecting assembly 5 includes a connecting shaft 10, a connecting bolt 11, and a fixing sleeve 12. Multiple connecting holes 9 are annularly distributed on the outer sides of the lower bucket body 6 and the upper bucket body 7. The connecting shaft 10 is inserted into the connecting holes 9, and the bottom end of the connecting shaft 10 is fixedly connected to the connecting bolt 11. The outer wall of the connecting bolt 11 is threaded with the fixing sleeve 12. The diameter of the fixing sleeve 12 is larger than the diameter of the connecting shaft 10, and the outer side of the fixing sleeve 12 is provided with anti-slip strips. The lower bucket body 6 and the upper bucket body 7 enclose the filler 8, and then the connecting shaft 10 is inserted into the connecting assembly between the lower bucket body 6 and the upper bucket body 7. In hole 9, tighten the upper fixing sleeve 12 on the outside of the connecting bolt 11. The fixing sleeve 12 and the outer edge of the top of the connecting shaft 10 cooperate to clamp the lower bucket 6 and the upper bucket 7, so as to connect the lower bucket 6 and the upper bucket 7 into one unit and form the filter chamber 2. The fixing sleeve 12 in the connecting component 5 on a single filter chamber 2 can be unscrewed to disassemble a single filter chamber 2 without disassembling the entire device. This solves the problems of high cost, large space occupation, and inconsistent life of each layer of filter material, which require targeted replacement and are difficult to manage in the existing technology.

[0020] The packing material 8 has symmetrical slots on both sides, and symmetrical locking blocks are fixedly connected to both sides inside the upper bucket body 7. The outer wall of the locking block engages with the inner wall of the slot. The slots on both sides of the packing material 8 are aligned with the locking blocks inside the connecting hole 9. The packing material 8 is then locked into the interior of the upper bucket body 7 along the outer wall of the locking block for positioning and installation. The packing material 8 is made of metal filter screen + glass fiber filter bag + activated carbon fiber felt. The sintering machine exhaust gas treatment adopts a three-layer structure of "metal filter screen + glass fiber filter bag + activated carbon fiber felt", which reduces the particulate matter emission concentration from 50mg / m³. 3 Reduced to 5 mg / m 3 Meanwhile, the VOCs removal rate reaches 85%, and the pores set on the 8-surface filling facilitate the capture of impurities. This does not represent the actual size.

[0021] The clamping mechanism includes a fixed support plate 13, a movable support plate 14, and a threaded rod 15. Fixed support plates 13 are symmetrically fixedly connected to both sides of the bottom of the main frame 1. Threaded rods 15 are symmetrically threadedly connected to both sides of the top of the main frame 1. Movable support plates 14 are symmetrically slidably connected to both sides of the top of the main frame 1. The top end of the threaded rod 15 extends through one side of the movable support plate 14 and is threadedly connected to it. The fixed support plate 13 and the movable support plate 14 are rectangular claw structures. The top of the fixed support plate 13 fits against the bottom of the lower hopper 6 in the lower filter chamber 2, and the bottom of the movable support plate 14 fits against the upper hopper 6 in the upper filter chamber 2. The top of the bucket body 7 fits together, and multiple filter chambers 2 are stacked on the inside of the main frame body 1. The bottom filter chamber 2 sits on the top of the fixed support plate 13. The top of the main frame body 1 restricts the movement trajectory of the movable support plate 14. The threaded rod 15 is threadedly engaged with the movable support plate 14. Tightening the threaded rod 15 in both directions can drive the movable support plate 14 to move up and down back and forth, thereby moving the movable support plate 14 to the top of the filter chamber 2 above and clamping it, so that multiple filter chambers 2 are fixed inside the main frame body 1, or the movable support plate 14 can be moved away from the top of the filter chamber 2 above, so that the filter chamber 2 can be removed and the packing 8 replaced.

[0022] The air inlet pipe 4 is designed with an elbow structure. The bottom of the two lower buckets 6 are provided with countersunk holes. The top of the air supply pipe 3 is inserted into the countersunk hole, and a sealing ring is fitted on the top of the air supply pipe 3. Electromagnetic valves are provided on the air supply pipe 3 and the air inlet pipe 4. The elbow structure can prevent the backflow of exhaust gas. The air supply pipe 3 on the filter chamber 2 is inserted into the countersunk hole to connect multiple filter chambers 2 in series. The sealing ring can fill the gap between the air supply pipe 3 and the countersunk hole to ensure the airtightness of the filter chamber 2 and the air supply pipe 3.

[0023] This multi-layer exhaust gas filtration device encloses the packing material 8 in the lower bucket 6 and upper bucket 7. The connecting shaft 10 is then inserted into the connecting hole 9 in the lower bucket 6 and upper bucket 7. Next, the upper fixing sleeve 12 is tightened on the outside of the connecting bolt 11. The fixing sleeve 12 and the outer edge of the top of the connecting shaft 10 cooperate to clamp the lower bucket 6 and upper bucket 7, thereby connecting the lower bucket 6 and upper bucket 7 into a whole to form a filter chamber 2. The fixing sleeve 12 in the connecting component 5 on a single filter chamber 2 can be unscrewed to disassemble a single filter chamber 2 without disassembling the entire device. This solves the problems of high cost, large space occupation, inconsistent lifespan of each filter layer, and difficult management in the existing technology, which requires overall disassembly for installation and maintenance.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layer exhaust gas filtering device comprising a main frame (1), a filtering bin (2), a gas delivery pipe (3) and a gas inlet pipe (4), characterized in that: The main frame (1) is symmetrically provided with clamping mechanisms on both sides. Multiple filter chambers (2) are installed on the clamping mechanisms. The top of the upper filter chamber (2) is connected to an air supply pipe (3), and the bottom of the lower filter chamber (2) is connected to an air inlet pipe (4). The filter chamber (2) includes a lower bucket (6) and an upper bucket (7). Each filter chamber (2) is provided with different fillers (8). A connecting component (5) is provided between the lower bucket (6) and the upper bucket (7). The connecting assembly (5) includes a connecting shaft (10), a connecting bolt (11), and a fixing sleeve (12). Multiple connecting holes (9) are distributed in a ring on the outer side of the lower bucket (6) and the upper bucket (7). The connecting shaft (10) is inserted into the connecting hole (9). The bottom end of the connecting shaft (10) is fixedly connected to the connecting bolt (11). The outer wall of the connecting bolt (11) is threaded with the fixing sleeve (12).

2. A multi-layer exhaust filter device according to claim 1, characterized in that: The diameter of the fixing sleeve (12) is larger than the diameter of the connecting shaft (10), and the outer side of the fixing sleeve (12) is provided with anti-slip strips.

3. A multi-layer exhaust filter device according to claim 1, wherein: The filler (8) has symmetrical slots on both sides, and the upper bucket (7) has symmetrical fixed blocks on both sides inside, with the outer wall of the block engaging with the inner wall of the slot.

4. The multi-layer exhaust filter device of claim 1, wherein: The clamping mechanism includes a fixed support plate (13), a movable support plate (14), and a threaded rod (15). The fixed support plates (13) are symmetrically fixedly connected to both sides of the bottom of the main frame (1). The threaded rods (15) are symmetrically threadedly connected to both sides of the top of the main frame (1). The movable support plate (14) is symmetrically slidably connected to both sides of the top of the main frame (1). The top end of the threaded rod (15) passes through one side of the movable support plate (14) and is threadedly connected to it.

5. A multi-layer exhaust filter device according to claim 4, wherein: The fixed tray (13) and the movable tray (14) are designed as rectangular claw structures. The top of the fixed tray (13) is attached to the bottom of the lower bucket (6) in the lower filter chamber (2), and the bottom of the movable tray (14) is attached to the top of the upper bucket (7) in the upper filter chamber (2).

6. The multi-layer exhaust filter device of claim 1, wherein: The air inlet pipe (4) is designed with a bent structure. The bottom of the two lower buckets (6) is provided with countersunk holes. The top of the air delivery pipe (3) is inserted into the countersunk holes and a sealing ring is fitted on the top of the air delivery pipe (3). Electromagnetic valves are provided on the air delivery pipe (3) and the air inlet pipe (4).

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