Industrial waste gas purification pipeline

By designing rotatable filter elements and air passages in industrial waste gas purification pipelines, the problem of cumbersome filter element replacement in existing technologies has been solved, enabling rapid and leak-free filter cartridge replacement.

CN223969685UActive Publication Date: 2026-03-06YANGZHOU ZHONGKANG ENVIRONMENTAL PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing industrial waste gas purification pipelines, replacing or cleaning the filter screens requires disassembling the pipeline, which is a cumbersome operation.

Method used

Design an industrial waste gas purification pipeline with a filter element that can be rotatably installed on the outside of the main pipeline. By rotating the filter element, the air inlet group and the air outlet group can be disconnected through the air passage. The filter element can be quickly replaced by disassembling the filter cylinder in the air passage to avoid air leakage.

Benefits of technology

It enables quick replacement of filter cartridges without disassembling the pipeline, preventing exhaust gas leakage and simplifying the maintenance process.

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Abstract

The utility model discloses an industrial waste gas purification pipeline, and particularly relates to the technical field of waste gas purification pipelines, the industrial waste gas purification pipeline comprises a main pipeline and a partition plate arranged in the main pipeline, and an air inlet group and an air outlet group which are arranged in a circular array and matched with each other are respectively formed in the inner wall of the main pipeline and positioned on two opposite sides of the partition plate; a filter part is rotationally arranged between an upper baffle and a lower baffle arranged on the outer wall of the main pipeline, an air passing channel used for communicating the air inlet hole set with the air outlet hole set is formed in the filter part, and a filter cartridge is arranged in the air passing channel. According to the waste gas purification pipeline provided by the utility model, the gas inlet hole group and the gas outlet hole group are communicated with the gas passing channel to enable the filter cartridge to filter waste gas, and then the filter piece rotates outside the main pipeline, so that the gas passing channel is utilized to enable the gas inlet hole group and the gas outlet hole group to be disconnected by rotating the filter piece; and then the filter cartridge in the air passing channel is disassembled to avoid air leakage, and meanwhile, the filter cartridge is quickly replaced under the condition that the pipeline is not disassembled.
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Description

Technical Field

[0001] This utility model relates to the field of waste gas purification pipeline technology, and more specifically to an industrial waste gas purification pipeline. Background Technology

[0002] Waste gas purification pipelines are devices used to collect and treat waste gases generated during industrial production processes, aiming to reduce environmental impact. These pipeline systems typically include multiple components, such as waste gas collection pipes, filtration devices, gas scrubbers, and catalyst reactors. Their main function is to purify harmful gases through physical or chemical processes to meet emission standards.

[0003] According to patent publication number CN213555989U, published on June 29, 2021, a duct-type exhaust gas purifier is disclosed, including a main housing. An air inlet pipe is fixedly connected to one side of the main housing and communicates with the main housing. Track plates are fixedly connected to both the upper and lower ends of the inner wall of the air inlet pipe. A limiting plate is fixedly connected to one end of the upper track plate, and the limiting plate is fixedly connected to the upper end of the inner wall of the air inlet pipe. A fan box is arranged between the two sets of track plates, and the fan... The fan housing is slidably connected to the track plate, and the fan housing is in close contact with the inner wall of the air intake pipe; a bearing seat is fixedly connected to the upper end of the main housing, a rotating shaft is rotatably connected to the upper end of the bearing seat, a baffle is fixedly connected to the upper end of the rotating shaft, two sets of sealing blocks are provided above the main housing, a filter plate is fixedly connected to the lower part of the sealing blocks, and the filter plate is connected through the main housing, a T-shaped stop is fixedly connected to the lower end of the main housing, and the lower end of the filter plate is in close contact with the groove provided at the upper end of the T-shaped stop.

[0004] Among the existing technologies, including the aforementioned patents, the most common methods for purifying exhaust gas through pipelines involve installing filters inside the pipeline to remove dust and other contaminants from the gas. However, this method of placing filters inside the pipeline requires disassembling the pipeline for replacement or cleaning, which is quite cumbersome. Utility Model Content

[0005] The purpose of this utility model is to provide an industrial waste gas purification pipeline to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an industrial waste gas purification pipeline, comprising a main pipeline and a baffle plate disposed therein, wherein an air inlet group and an air outlet group are respectively provided on opposite sides of the baffle plate in a circular array and matched with each other, and a filter element is rotatably disposed between an upper baffle plate and a lower baffle plate disposed on the outer wall of the main pipeline, wherein an air passage is provided in the filter element to connect the air inlet group and the air outlet group, and a filter cylinder is disposed in the air passage.

[0007] Preferably, the air inlet group includes symmetrically arranged upper holes, the air outlet group includes symmetrically arranged lower holes, and the number of air passages, upper holes, and lower holes is the same.

[0008] Preferably, the lower baffle has an object retrieval hole, and the number of object retrieval holes and air passages are the same, and the bottom end of the filter element has a slot communicating with the air passage.

[0009] Preferably, the filter element has a bottom side hole and a top side hole at both ends of the air passage.

[0010] Preferably, a support block is movably disposed within the slot, and a locking rod is symmetrically slidably disposed on the support block. The first end of the locking rod is engaged in a locking groove opened in the inner wall of the slot, and a locking spring is fixedly installed on the second end of the locking rod.

[0011] Preferably, the bottom end of the filter element is provided with multiple bullseye wheels.

[0012] Preferably, the filter element is rotated relative to the main pipe to misalign the bottom and top holes with the upper and lower holes.

[0013] Preferably, the outer wall of the filter element is provided with a positioning groove, and the insert rod slidably disposed on the upper baffle is movably disposed in the positioning groove.

[0014] Preferably, the filter element is provided with an upper sealing rubber ring and a lower sealing rubber ring on the outer wall of the main pipe side.

[0015] Preferably, the outer wall of the support block is provided with an anti-leakage rubber ring.

[0016] In the above technical solution, the industrial waste gas purification pipeline provided by this utility model has the following beneficial effects: the filter element is rotated and set on the outside of the main pipeline, and then the air inlet group and the air outlet group are disconnected by rotating the filter element and using the air passage. Then, the filter cartridge in the air passage is disassembled to avoid air leakage and the filter cartridge can be replaced quickly without disassembling the pipeline. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the main pipeline provided in an embodiment of the present utility model;

[0019] Figure 2 A schematic diagram of the overall cross-sectional structure of the main pipeline provided in this embodiment of the utility model;

[0020] Figure 3 This is an enlarged structural diagram of point A provided in an embodiment of the present utility model;

[0021] Figure 4 This is an enlarged structural diagram of section B provided in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the filter element provided in an embodiment of the present utility model;

[0023] Figure 6 A schematic diagram of the misaligned cross-sectional structure of the top side hole and the upper hole provided in an embodiment of this utility model;

[0024] Figure 7 Another cross-sectional structural diagram showing the misalignment of the top side hole and the upper hole provided in this embodiment of the utility model;

[0025] Figure 8 A schematic cross-sectional view of the main pipeline section provided in an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Main pipe; 2. Filter element; 3. Insert rod; 4. Support block; 5. Bullseye wheel; 11. Upper baffle; 12. Lower baffle; 13. Partition; 14. Upper hole; 15. Lower hole; 16. Retrieval hole; 21. Positioning groove; 22. Top side hole; 23. Air passage; 24. Bottom side hole; 25. Slot; 26. Locking groove; 41. Filter cylinder; 42. Clamping rod; 43. Locking spring; 44. Anti-leakage rubber ring; 51. Lower sealing rubber ring; 52. Upper sealing rubber ring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-8As shown, an industrial waste gas purification pipeline includes a main pipeline 1 and a baffle 13 disposed therein. The inner wall of the main pipeline 1 has an inlet group and an outlet group arranged in a circular array and matched on opposite sides of the baffle 13. A filter element 2 is rotatably disposed between an upper baffle 11 and a lower baffle 12 disposed on the outer wall of the main pipeline 1. An air passage 23 is formed within the filter element 2 to connect the inlet group and the outlet group, and a filter cartridge 41 is disposed within the air passage 23. The filter element 2 is rotatably disposed on the outside of the main pipeline 1. By rotating the filter element 2, the air passage 23 is used to disconnect the inlet group and the outlet group. Then, the filter cartridge 41 within the air passage 23 is disassembled to prevent air leakage and to quickly replace the filter cartridge 41 without disassembling the pipeline.

[0030] As a further technical solution provided by this utility model, the air inlet group includes symmetrically arranged upper holes 14, the air outlet group includes symmetrically arranged lower holes 15, and the number of air passages 23, upper holes 14 and lower holes 15 are the same.

[0031] Specifically, by aligning and connecting the upper hole 14 and the lower hole 15 with the air passage 23, the exhaust gas flows along the main pipe 1 and passes through the upper hole 14, the air passage 23 and the lower hole 15. When the exhaust gas passes through the air passage 23, it passes through the filter cartridge 41 inside the air passage 23 to achieve dust removal and filtration of the exhaust gas.

[0032] Furthermore, the lower baffle 12 is provided with a retrieval hole 16, and the number of retrieval holes 16 and the number of air passages 23 are the same. The bottom end of the filter element 2 is provided with a slot 25 that communicates with the air passage 23.

[0033] Specifically, the filter cartridge 41 is inserted into the air passage 23 through the retrieval hole 16 and the air passage 23 for easy assembly and disassembly.

[0034] Furthermore, the filter element 2 has a bottom side hole 24 and a top side hole 22 respectively located at both ends of the air passage 23.

[0035] Specifically, the bottom side hole 24 and the top side hole 22 facilitate the connection between the air passage 23, the upper hole 14, and the lower hole 15.

[0036] Furthermore, a support block 4 is movably disposed within the slot 25, and a locking rod 42 is symmetrically slidably disposed on the support block 4. The first end of the locking rod 42 is engaged in the locking groove 26 opened in the inner wall of the slot 25, and a locking spring 43 is fixedly installed on the second end of the locking rod 42.

[0037] Specifically, the filter cartridge 41 is inserted into the air passage 23 through the retrieval hole 16 and the air passage 23. Then, the support block 4 is inserted into the slot 25. As the support block 4 extends into the slot 25, the locking spring 43 pushes the locking rod 42, causing the first end of the locking rod 42 to engage in the locking groove 26 on the inner wall of the slot 25. At this point, the support block 4 is locked onto the filter element 2, quickly securing the filter cartridge 41. By moving the locking rod 42 and disengaging its first end from the locking groove 26, the filter cartridge 41 can be easily disassembled.

[0038] Furthermore, the bottom end of the filter element 2 is provided with multiple bullseye wheels 5.

[0039] Specifically, the bullseye wheel 5 is used to reduce the friction between the filter element 2 and the lower baffle 12.

[0040] Furthermore, the filter element 2 rotates relative to the main pipe 1 to misalign the bottom side hole 24 and the top side hole 22 with the upper hole 14 and the lower hole 15.

[0041] Specifically, such as Figures 5-7 As shown, in the default state, the two upper holes 14 of the air intake assembly are connected to the two top side holes 22 respectively, and then... Figure 6 As shown in the upper direction, by rotating the filter element 2 to the left, one of the two upper holes 14 is misaligned and closed by the inner wall of the filter element 2, and the other upper hole 14 and the other top side hole 22 are connected again. Meanwhile, the top side hole 22, which is disconnected from the upper hole 14, opens up its corresponding air passage 23 and slot 25. Figure 8 The extraction hole 16 is connected, at which point the filter cartridge 41 can be replaced, preventing exhaust gas leakage. Similarly, ... Figure 7 As shown in the direction above, by rotating the filter element 2 to the right, the other upper hole 14 of the two upper holes 14 is misaligned and closed by the inner wall of the filter element 2.

[0042] Furthermore, the outer wall of the filter element 2 is provided with a positioning groove 21, and the insert rod 3 slidably disposed on the upper baffle 11 is movably disposed in the positioning groove 21.

[0043] Specifically, there are three insertion rods 3. By inserting the three insertion rods 3 into the positioning groove 21 in sequence, the position of the filter element 2 relative to the main pipe 1 is fixed, so that the upper hole 14 can be kept in a state of communication or misalignment with the top side hole 22.

[0044] Furthermore, the filter element 2 is provided with an upper sealing rubber ring 52 and a lower sealing rubber ring 51 on the outer wall of one side of the main pipe 1.

[0045] Specifically, the upper sealing rubber ring 52 and the lower sealing rubber ring 51 are used to seal the space between the filter element 2 and the outer wall of the main pipe 1.

[0046] Furthermore, the outer wall of the support block 4 is provided with an anti-leakage rubber ring 44.

[0047] Specifically, an anti-leakage rubber ring 44 is used to seal the space between the support block 4 and the inner wall of the slot 25.

[0048] Working principle: The filter element 2 is rotatably mounted on the outside of the main pipe 1. By rotating the filter element 2, the air inlet and outlet groups are disconnected via the air passage 23. Then, the filter cartridge 41 inside the air passage 23 is removed to prevent air leakage and to quickly replace the filter cartridge 41 without disassembling the pipe. The filter cartridge 41 is inserted into the air passage 23 through the aligning hole 16 and the air passage 23. Then, the support block 4 is also inserted into the slot 25. As the support block 4 extends into the slot 25, the locking spring 43 pushes the locking rod 42, causing the first end of the locking rod 42 to engage in the locking groove 26 on the inner wall of the slot 25. At this time, the support block 4 is locked onto the filter element 2, quickly fixing the filter cartridge 41. By moving the locking rod 42 and disengaging the first end of the locking rod 42 from the locking groove 26, the filter cartridge 41 can be easily removed.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An industrial off-gas purification conduit, characterized in that, Includes a main pipe (1) and a partition (13) installed inside it. The inner wall of the main pipe (1) is provided with an air inlet group and an air outlet group arranged in a circular array and matched with each other on opposite sides of the partition (13). A filter element (2) is rotatably arranged between the upper baffle (11) and the lower baffle (12) installed on the outer wall of the main pipe (1). An air passage (23) is opened in the filter element (2) to connect the air inlet group and the air outlet group, and a filter cylinder (41) is installed in the air passage (23).

2. An industrial exhaust gas purification conduit according to claim 1, characterized in that The air inlet group includes symmetrically arranged upper holes (14), the air outlet group includes symmetrically arranged lower holes (15), and the number of air passages (23), upper holes (14), and lower holes (15) are the same.

3. The industrial exhaust gas purification duct according to claim 1, wherein The lower baffle (12) has a collection hole (16) and the number of collection holes (16) and air passages (23) are the same. The bottom end of the filter element (2) has a slot (25) connected to the air passage (23).

4. The industrial exhaust gas purification duct according to claim 1, wherein The filter element (2) has a bottom side hole (24) and a top side hole (22) respectively located at both ends of the air passage (23).

5. The industrial exhaust gas purification duct according to claim 3, wherein A support block (4) is movably disposed in the slot (25). A locking rod (42) is symmetrically slidably disposed on the support block (4). The first end of the locking rod (42) is engaged in the locking groove (26) opened in the inner wall of the slot (25). A locking spring (43) is fixedly installed on the second end of the locking rod (42).

6. The industrial exhaust gas purification duct according to claim 1, wherein The bottom end of the filter element (2) is provided with multiple bullseye wheels (5).

7. The industrial exhaust gas purification duct according to claim 1, wherein The filter element (2) rotates relative to the main pipe (1) to misalign the bottom side hole (24) and top side hole (22) with the upper hole (14) and lower hole (15).

8. The industrial exhaust gas purification duct according to claim 1, wherein The outer wall of the filter element (2) is provided with a positioning groove (21), and the insert rod (3) slidably disposed on the upper baffle (11) is movably disposed in the positioning groove (21).

9. The industrial exhaust gas purification duct according to claim 1, wherein The filter element (2) is provided with an upper sealing rubber ring (52) and a lower sealing rubber ring (51) on the outer wall of the main pipe (1) side.

10. The industrial exhaust gas purification duct according to claim 5, wherein The outer wall of the support block (4) is provided with an anti-leakage rubber ring (44).

Citation Information

Patent Citations

  • Pipeline type waste gas purifier

    CN213555989U