A chemical waste gas treatment device with quick-replacement filter element.

Abstract

This utility model relates to the field of chemical filter element technology, and in particular to a chemical waste gas treatment device with a quick-replaceable filter element. The technical solution includes a cylinder, a screw, a bottom cover, a top plate, a filter cartridge, and a conical ring. The bottom cover is located at the lower end of the cylinder, a support ring is located on the inner wall of the upper end of the cylinder, a support rod is located at the upper end of the bottom cover, a top plate is located at the upper end of the support rod, and a filter cartridge is sleeved on the outer side of the top plate. A conical ring is located at the upper end of the bottom cover, and a second bearing seat is located at the upper end of the bottom cover. A second rotating shaft is rotatably mounted inside the second bearing seat, a locking block is sleeved on the outer wall of the rotating shaft, and a second torsion spring is sleeved on the outer side of the second rotating shaft. A lower locking ring is located on the inner wall of the lower end of the cylinder. This utility model achieves convenient installation of the filter cartridge for chemical waste gas filtration by providing an elastically locking and pressing filter cartridge installed inside the cylinder. After the filter cartridge is removed from the cylinder, the elastic locking plate at the lower end automatically pops open, making filter cartridge disassembly and replacement convenient and facilitating filter cartridge maintenance.

Description

Technical Field

[0001] This utility model relates to the field of chemical filter technology, and in particular to a chemical waste gas treatment device with a quick-replaceable filter element. Background Technology

[0002] Filter elements for filtering chemical waste gas are usually activated carbon filter elements or honeycomb ceramic filter elements. Activated carbon filter elements have strong adsorption capacity and can efficiently remove organic waste gas, while honeycomb ceramic filter elements have a large specific surface area, are resistant to high temperature and corrosion, have high purification efficiency, and a long service life.

[0003] The filter element is fixed with bolts, which requires the use of special tools to remove a large number of bolts, making equipment maintenance cumbersome and time-consuming. To address this problem, we propose a chemical waste gas treatment device with a quick filter element replacement function. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a chemical waste gas treatment device with a quickly replaceable filter element.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chemical waste gas treatment device with a quickly replaceable filter element, comprising a cylinder, a screw, a bottom cover, a top plate, a filter cartridge, and a conical ring. The bottom cover is provided at the lower end of the cylinder, a support ring is provided on the inner wall of the upper end of the cylinder, a support rod is provided on the upper end of the bottom cover, a top plate is provided on the upper end of the support rod, a filter cartridge is sleeved on the outer side of the top plate, a conical ring with an annular shape and an outer diameter that gradually increases from top to bottom is provided on the upper end of the bottom cover, a second bearing seat arranged in an annular array is provided on the upper end of the bottom cover, a second rotating shaft is rotatably installed inside the second bearing seat, a locking block is sleeved on the outer wall of the rotating shaft, and a second torsion spring is sleeved on the outer side of the second rotating shaft, with its two ends respectively connected to the second bearing seat and the locking block, and a lower locking ring with an inner diameter that gradually increases from top to bottom is provided on the inner wall of the lower end of the cylinder.

[0006] Preferably, each of the card blocks is provided with a limiting block located at the upper end of the bottom cover on one side, and a sealing gasket is provided on the outer wall of the cone ring and the lower end of the support ring.

[0007] Preferably, the lower end of the filter cartridge is located between the lower retaining ring and the conical ring. The limiting block prevents the retaining block from rotating excessively, and when the bottom cover is aligned with the cartridge body, the retaining block effectively enters the lower end of the cartridge body.

[0008] Preferably, the top plate is provided with a bearing seat arranged in a ring array at its upper end. A rotating shaft is rotatably mounted inside the bearing seat. A side rod is provided at one end of the rotating shaft (20). A torsion spring is sleeved on the outside of the rotating shaft and connected to the side rod and the bearing seat. The rotating shaft provides rotational support for the locking block. The rotating support inside the bearing seat allows the locking block to automatically unfold outward through the elastic support of the torsion spring after it is released from the cylinder, thus releasing the pressure on the lower side of the filter cylinder.

[0009] Preferably, the outer wall of the cylinder is provided with a three-way pipe 1 and a three-way pipe 2. A three-way valve 1 is installed inside the three-way pipe 1, and a three-way valve 2 is installed inside the three-way pipe 2. During use, the three-way pipes 1 and 2 are used for inputting chemical waste gas and outputting filtered gas. The three-way valves 1 and 2 are used to regulate the opening and closing of the pipes. When cleaning is required, inert gas is input through another pipe of the three-way valve 2 to drive away harmful gases, while the gas is simultaneously collected by connecting to a container through the output of the other pipe of the three-way pipe 1.

[0010] Preferably, threaded brackets and guide plates are respectively provided on both sides of the lower end of the cylinder. A screw is internally threaded between the bearings, and a rotating rod is sleeved on the outer wall of the upper end of the screw. A guide rod is provided on the outer wall of the cylinder, and a sliding sleeve is embedded in the upper end of the guide plate and slidably sleeved on the outer wall of the guide rod. The guide plate slides on the outer wall of the guide rod through the sliding sleeve, gripping the rotating rod and driving the screw to rotate inside the threaded bracket.

[0011] Preferably, a bearing seat three is provided at one end of the lower end of the bottom cover, and the lower end of the screw is rotatably installed inside the bearing seat three. A retaining sleeve is fitted onto the outer wall of the screw, and a spring is provided between the retaining sleeve and the outer wall of the cylinder. The rotational force of the screw is applied to the inside of the bearing seat three to support the rotation of the screw. The retaining sleeve is elastically supported and engaged with the outer wall of the screw by the spring, pressing the screw and preventing it from rotating arbitrarily.

[0012] Preferably, one end of the ferrule is provided with a rotating seat, and a rod-shaped pull rod bent at ninety degrees is rotatably installed inside the rotating seat. The spring is provided with a positioning rod and a positioning cylinder that are slidably inserted and connected at opposite ends to the ferrule and the cylinder body. During the extension and retraction of the spring, the positioning rod and the positioning cylinder are slidably installed, limiting the spring and preventing it from shifting. The pull rod can be rotated by gripping it, pulling the ferrule and thus the spring. When one end of the pull rod is located on the outer wall of the threaded bracket, it positions the pulled spring, ensuring contact with the ferrule and guaranteeing effective rotation of the screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The filter cartridge of this utility model is installed inside the cylinder body. The filter cartridge inside the cylinder body is elastically supported by the side rod of the elastic structure, and the longitudinal compression structure cone ring supports the inner wall of the filter cartridge. The elastic support block on the lower side of the filter cartridge pressurizes the filter cartridge to fit against the outer wall of the cone ring, preventing exhaust gas from passing through any gaps that may exist in the filter cartridge installation, thus achieving full filtration of exhaust gas. When disassembling, the elastic structure automatically unfolds, allowing the filter cartridge to be easily removed, avoiding the cumbersome bolt disassembly process, making filter cartridge replacement convenient, and realizing convenient maintenance of filter components in chemical production. Attached Figure Description

[0015] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the main sectional three-dimensional structure of this utility model;

[0017] Figure 3 This is a front-view three-dimensional structural diagram of the side rod of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the top plate of this utility model from a bottom view;

[0019] Figure 5 This is a side view of the three-dimensional structure of the limiting block of this utility model;

[0020] Figure 6 This is a top-view three-dimensional structural diagram of the threaded bracket of this utility model.

[0021] Reference numerals in the attached drawings: 1. Cylinder body; 2. Screw; 3. Bottom cover; 4. Three-way pipe one; 5. Three-way valve one; 6. Three-way valve two; 7. Three-way pipe two; 8. Rotating rod; 9. Support ring; 10. Top plate; 11. Filter cartridge; 12. Conical ring; 13. Side rod; 14. Positioning cylinder; 15. Support rod; 16. Guide rod; 17. Guide plate; 18. Sliding sleeve; 19. Bearing seat one; 20. Rotating shaft one; 21. Torsion spring one; 22. Lower retaining ring; 23. Rotating shaft two; 24. Limiting block; 25. Torsion spring two; 26. Bearing seat two; 27. Sealing gasket; 28. Pull rod; 29. ​​Rotating seat; 30. Sleeve; 31. Spring; 32. Threaded bracket; 33. Positioning rod; 34. Clamping block; 35. Bearing seat three. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-6As shown, the present invention proposes a chemical waste gas treatment device with a quick-replaceable filter element, comprising a cylinder 1, a screw 2, a bottom cover 3, a top plate 10, a filter cartridge 11, and a conical ring 12. The bottom cover 3 is provided at the lower end of the cylinder 1, and a support ring 9 is provided on the inner wall of the upper end of the cylinder 1. A support rod 15 is provided at the upper end of the bottom cover 3, and a top plate 10 is provided at the upper end of the support rod 15. The filter cartridge 11 is sleeved on the outer side of the top plate 10. A conical ring 12 with an annular shape and an outer diameter that gradually increases from top to bottom is provided at the upper end of the bottom cover 3. A bearing seat 26 arranged in an annular array is provided at the upper end of the bottom cover 3. A rotating shaft 23 is rotatably installed inside the bearing seat 26. A locking block 34 is sleeved on the outer wall of the rotating shaft. A torsion spring 25 with both ends connected to the bearing seat 26 and the locking block 34 is sleeved on the outer side of the rotating shaft 23. A lower locking ring 22 with an inner diameter that gradually increases from top to bottom is provided on the inner wall of the lower end of the cylinder 1.

[0024] Each side of the card block 34 is provided with a limiting block 24 located at the upper end of the bottom cover 3, and the outer wall of the cone ring 12 and the lower end of the support ring 9 are provided with sealing gaskets 27.

[0025] The lower end of the filter cartridge 11 is located between the lower retaining ring 22 and the conical ring 12;

[0026] The top plate 10 is provided with a bearing seat 19 arranged in a ring array. A rotating shaft 20 is rotatably installed inside the bearing seat 19. A side rod 13 is provided at one end of the rotating shaft 1 (20). A torsion spring 21 is sleeved on the outside of the rotating shaft 20 and connected to the side rod 13 and the bearing seat 19.

[0027] The outer wall of the cylinder 1 is provided with a three-way pipe 4 and a three-way pipe 7. A three-way valve 5 is installed inside the three-way pipe 4, and a three-way valve 6 is installed inside the three-way pipe 7.

[0028] Threaded brackets 32 and guide plates 17 are respectively provided on both sides of the lower end of the cylinder 1. A screw 2 is installed in the internal thread between the bearings. A rotating rod 8 is sleeved on the upper outer wall of the screw 2. A guide rod 16 is provided on the outer wall of the cylinder 1. A sliding sleeve 18 is embedded in the upper end of the guide plate 17 and slidably sleeved on the outer wall of the guide rod 16.

[0029] A bearing seat 35 is provided at one end of the bottom cover 3. The lower end of the screw 2 is rotatably installed inside the bearing seat 35. A retaining sleeve 30 is sleeved on the outer wall of the screw 2. A spring 31 is provided between the retaining sleeve 30 and the outer wall of the cylinder 1.

[0030] One end of the sleeve 30 is provided with a rotating seat 29, and a rod-shaped pull rod 28 bent at ninety degrees is rotatably installed inside the rotating seat 29. The spring 31 is provided with a positioning rod 33 and a positioning cylinder 14 that are slidably inserted and connected to the sleeve 30 and the cylinder 1 at opposite ends.

[0031] Based on the implementation steps of Embodiment 1: When installing the filter cartridge 11, first, the filter cartridge 11 is sleeved on the outside of the top plate 10, and then the bottom cover 3 is connected to the cylinder 1. During the connection process, the outer diameter of the conical ring 12 at the upper end of the bottom cover 3 gradually increases from top to bottom. As the bottom cover 3 gradually approaches the cylinder 1, the lower end of the filter cartridge 11 enters between the lower retaining ring 22 and the conical ring 12, whose inner diameter gradually increases from top to bottom, which are set on the inner wall of the lower end of the cylinder 1. At the same time, the retaining blocks 34 arranged in a ring array at the upper end of the bottom cover 3 are initially at a certain angle under the action of the torsion spring 25. When the bottom cover 3 is connected to the cylinder 1, the retaining blocks 34 are subjected to the lower end of the cylinder 1. The inner wall is squeezed, overcoming the elastic force of the second torsion spring 25 and rotating inward until the locking block 34 is completely inserted into the lower end of the cylinder 1. At this time, the locking block 34 returns to a certain angle under the elastic force of the second torsion spring 25, pressing the lower side of the filter cylinder 11. At the same time, the side rods 13 distributed in a ring array at the upper end of the top plate 10 provide elastic support for the inside of the filter cylinder 11 under the action of the first torsion spring 21. The sealing gasket 27 set between the outer wall of the cone ring 12 and the lower end of the support ring 9 further ensures the sealing of the filter cylinder 11 installation, preventing the exhaust gas from passing through any gaps that may exist in the installation of the filter cylinder 11, so that the exhaust gas can be fully filtered by the filter cylinder 11.

[0032] When the filter cartridge 11 needs to be replaced, the gripping lever 28 is rotated to pull it, causing the sleeve 30 to overcome the elastic force of the spring 31 and move away from the screw 2, thus releasing the pressure on the screw 2. Then, the gripping rotating rod 8 drives the screw 2 to rotate inside the threaded bracket 32. Since the lower end of the screw 2 is rotated and installed inside the bearing seat 35, as the screw 2 rotates, with the guide plate 17 sliding on the outer wall of the guide rod 16 through the sliding sleeve 18, the bottom cover 3 gradually moves away from the cylinder 1. During the movement of the bottom cover 3, the locking block 34 loses the pressure of the inner wall of the lower end of the cylinder 1 and automatically unfolds outward under the elastic force of the torsion spring 25. At the same time, the side rod 13 also automatically unfolds under the elastic force of the torsion spring 21, releasing the pressure and support on the filter cartridge 11. At this time, the filter cartridge 11 can be easily removed, avoiding the cumbersome bolt disassembly process.

[0033] The filter cartridge 11 is quickly installed and disassembled through an elastic structure. The design of the side rod 13 and the locking block 34 cleverly utilizes the elastic characteristics of the torsion spring. During installation, it automatically adapts to and holds the filter cartridge 11, and during disassembly, it automatically unfolds and releases the filter cartridge 11. This design greatly improves the efficiency of filter cartridge 11 replacement, making the maintenance of chemical production filtration components more convenient. Compared with the traditional filter cartridge replacement method that uses bolts for fixing, it solves the problem of cumbersome and time-consuming equipment maintenance, reduces the use of special tools, and lowers labor and time costs. At the same time, the setting of the sealing gasket 27 ensures the sufficiency of waste gas filtration, improves the effect of chemical waste gas treatment, and helps to reduce environmental pollution. In addition, the setting of three-way pipe 4 and three-way pipe 7, as well as three-way valve 5 and three-way valve 6, facilitates the output of residual chemical waste gas and the removal and collection of harmful gases, improving the practicality and safety of the device.

[0034] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A chemical waste gas treatment device with a quick-replaceable filter element, comprising a cylinder (1), a screw (2), a bottom cover (3), a top plate (10), a filter cartridge (11), and a conical ring (12), characterized in that: The lower end of the cylinder (1) is provided with a bottom cover (3), the upper end of the inner wall of the cylinder (1) is provided with a support ring (9), the upper end of the bottom cover (3) is provided with a support rod (15), the upper end of the support rod (15) is provided with a top plate (10), the outer side of the top plate (10) is sleeved with a filter cylinder (11), the upper end of the bottom cover (3) is provided with a conical ring (12) that is annular and whose outer diameter gradually increases from top to bottom, the upper end of the bottom cover (3) is provided with a bearing seat two (26) arranged in annular array, the bearing seat two (26) is rotatably installed with a rotating shaft two (23) inside, the outer wall of the rotating shaft is sleeved with a locking block (34), the outer side of the rotating shaft two (23) is sleeved with a torsion spring two (25) whose two ends are respectively connected to the bearing seat two (26) and the locking block (34), and the lower end of the inner wall of the cylinder (1) is provided with a lower locking ring (22) whose inner diameter gradually increases from top to bottom.

2. The chemical waste gas treatment device with a quickly replaceable filter element according to claim 1, characterized in that: Each of the card blocks (34) is provided with a limiting block (24) located at the upper end of the bottom cover (3), and the outer wall of the cone ring (12) and the lower end of the support ring (9) are provided with sealing gaskets (27).

3. A chemical waste gas treatment device with a quickly replaceable filter element according to claim 1, characterized in that: The lower end of the filter cartridge (11) is located between the lower retaining ring (22) and the conical ring (12).

4. A chemical waste gas treatment device with a quickly replaceable filter element according to claim 1, characterized in that: The top plate (10) is provided with a bearing seat (19) arranged in a ring array at the upper end. A rotating shaft (20) is rotatably installed inside the bearing seat (19). A side rod (13) is provided at one end of the rotating shaft (20). A torsion spring (21) is sleeved on the outside of the rotating shaft (20) and connected to the side rod (13) and the bearing seat (19).

5. A chemical waste gas treatment device with a quickly replaceable filter element according to claim 1, characterized in that: The outer wall of the cylinder (1) is provided with a three-way pipe one (4) and a three-way pipe two (7). A three-way valve one (5) is provided inside the three-way pipe one (4), and a three-way valve two (6) is provided inside the three-way pipe two (7).

6. A chemical waste gas treatment device with a quickly replaceable filter element according to claim 1, characterized in that: The lower end of the cylinder (1) is provided with threaded brackets (32) and guide plates (17) respectively. The bearings are internally threaded and installed with screws (2). The upper end of the screw (2) is sleeved with a rotating rod (8). The outer wall of the cylinder (1) is provided with a guide rod (16). The upper end of the guide plate (17) is internally embedded with a sliding sleeve (18) that is slidably sleeved on the outer wall of the guide rod (16).

7. A chemical waste gas treatment device with a quickly replaceable filter element according to claim 1, characterized in that: The bottom cover (3) is provided with a bearing seat three (35) at one end. The lower end of the screw (2) is rotatably installed inside the bearing seat three (35). The outer wall of the screw (2) is fitted with a sleeve (30). The sleeve (30) and the outer wall of the cylinder (1) are provided with a spring (31).

8. A chemical waste gas treatment device with a quickly replaceable filter element according to claim 7, characterized in that: The sleeve (30) is provided with a rotating seat (29) at one end. A rod-shaped pull rod (28) bent at ninety degrees is rotatably installed inside the rotating seat (29). The spring (31) is provided with a positioning rod (33) and a positioning cylinder (14) that are slidably inserted and connected to the sleeve (30) and the cylinder (1) at opposite ends.

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