A high temperature resistant filter cartridge for flue gas dust removal

Abstract

The present invention discloses a flue gas dust-removing high-temperature resistant filter cartridge, comprising a lower cylinder, an upper cylinder is arranged at the upper end of the lower cylinder, a first conical surface is opened on the inner wall of the lower cylinder and located at the upper end, a second conical surface is fixedly arranged on the lower end surface of the upper cylinder, the second conical surface is located inside the first conical surface and the inclinations of the two are equal, a top ring is fixedly arranged on one side of the second conical surface and located on the outer wall of the upper cylinder, the outer wall diameter of the top ring is equal to the outer wall diameter of the lower cylinder, a fastening nut is arranged at the connection between the upper cylinder and the lower cylinder, so that the user can disassemble the upper cylinder and the lower cylinder by removing the fastening nut to shorten the overall length of the device, thereby facilitating the cleaning of the interior of the upper cylinder and the lower cylinder, and by providing the first conical surface and the second conical surface, the sealing of the connection between the upper cylinder and the lower cylinder can be increased to prevent smoke from escaping.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas treatment, and more particularly to a flue gas dust removal and high temperature resistant filter cartridge. Background Art

[0002] A high temperature resistant filter cartridge is a cylindrical element used for filtering, which is generally divided into filter cartridges for filtering gaseous media and filtering liquid media. The filter cartridge for filtering liquid media is generally installed in the pipe filter, and its appearance is usually conical, so it is also called a conical filter. The high temperature resistant filter cartridges we usually refer to are mostly used to filter high temperature gases. It is a commonly used dust collection device with high capture rate, low resistance, and easy connection with the flue. It is widely used in the sampling of pollutants such as particulate matter, catering industry fumes, asphalt fumes, chromic acid mist, sulfuric acid mist, etc. According to the material, it can be divided into two types: glass fiber filter cartridges and corundum filter cartridges. The most widely used in daily use is the glass fiber filter cartridge. Glass fiber filter cartridges are made of ultra-fine glass fibers, and can capture more than 99.9% of smaller dust particles. However, most traditional high-temperature resistant filter cartridges are integral and cannot be disassembled, resulting in difficulty in cleaning the dust on the inner wall due to the long length of the filter cartridge. In addition, the filter screen inside the filter cartridge needs to be replaced frequently, but most existing filter cartridges and filter screens are integral. When the filter screen needs to be cleaned and replaced, it is not only time-consuming and labor-intensive, but also increases the cost of use. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the present invention provides a flue gas dust removal high-temperature resistant filter cartridge to solve the technical problem that most of the traditional high-temperature resistant filter cartridges mentioned in the background technology are in an integral form and cannot be disassembled, resulting in the dust on the inner wall being difficult to clean due to the long length of the filter cartridge.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flue gas dust removal and high-temperature resistant filter cartridge, comprising a lower cylinder, an upper cylinder is provided at the upper end of the lower cylinder, a first conical surface is opened on the inner wall of the lower cylinder and located at the upper end, a second conical surface is fixedly provided on the lower end surface of the upper cylinder, the second conical surface is located inside the first conical surface and the inclinations of the two are equal, a top ring is fixedly provided on one side of the second conical surface and located on the outer wall of the upper cylinder, the outer wall diameter of the top ring is equal to the outer wall diameter of the lower cylinder, a fastening nut is provided at the connection between the upper cylinder and the lower cylinder, the inner part of the fastening nut is abutted against the top ring, a fixing ring is fixedly provided on the upper end surface of the upper cylinder, a cover body is provided at the upper end of the fixing ring, and a filter cartridge is provided at the bottom of the cover body.

[0007] The present invention is further configured as follows: a mounting ring is fixedly provided on the lower end surface of the cover body, a notch is provided on the outer wall of the mounting ring, a plurality of notches are provided and are arranged in a circular shape, a limiting block is provided on one side of the notch and on the inner wall of the mounting ring, a clamping ring is fixedly provided on the upper end surface of the filter cartridge, a limiting hole is provided on the outer wall of the clamping ring, a plurality of limiting holes are provided and the limiting blocks are all located inside the limiting hole, a fixing hole is provided on the inner wall of the notch, a mounting hole is correspondingly provided on the inner wall of the limiting hole, a first screw is provided inside the fixing hole and the mounting hole to facilitate fixing the filter cartridge.

[0008] The present invention is further configured as follows: a fixing frame is provided on the outer wall of the fixing ring, and the fixing frames are provided in plurality and arranged in a circular shape, a fixing shaft is provided inside the fixing frame, a rotating block is rotatably provided on the fixing shaft, a threaded rod is fixedly provided on the upper end surface of the rotating block, a avoiding hole is correspondingly provided on the upper end surface of the cover body, the threaded rod is located inside the avoiding hole, a mounting nut is provided on the threaded rod, and a twisting block is fixedly provided on the upper end surface of the mounting nut, so as to facilitate the installation of the cover body and the upper cylinder body.

[0009] The present invention is further configured such that a placement hole is provided on the upper end surface of the cover body and at the outer end of the avoidance hole, and a placement ring is fixedly provided on the lower end surface of the mounting nut. The placement ring is located inside the placement hole to facilitate limiting the mounting nut and prevent it from running out.

[0010] The present invention is further configured such that an air outlet pipe is fixedly provided on the upper end surface of the cover body, an air inlet pipe is fixedly provided on the outer wall of the lower cylinder body, and a filter element is provided inside the air outlet pipe to facilitate further filtering of the smoke.

[0011] The present invention is further configured such that a mounting block is provided on the outer wall of the filter element, a mounting groove is correspondingly provided on the inner wall of the outlet pipe, threaded holes are provided on the mounting block and the inner wall of the mounting groove, second screws are provided inside the threaded holes, and vertical plates are fixed to the upper end surfaces of the first screw and the second screw to facilitate disassembly of the first screw and the second screw.

[0012] The present invention is further configured such that a sealing ring is fixedly provided on the lower end surface of the cover body, a sealing groove is correspondingly provided on the upper end surface of the fixing ring, and the sealing ring is located inside the sealing groove to increase the sealing between the cover body and the fixing ring.

[0013] The present invention is further configured such that a clamping ring is fixedly provided on the inner wall of the lower cylinder and at the bottom, and the bottom of the filter cartridge is located inside the clamping ring, so as to limit the bottom of the filter cartridge and prevent shaking.

[0014] The present invention is further configured such that an external flange is fixedly provided on the lower end surface of the lower cylinder, and an external hole is provided on the external flange to facilitate fixed connection of the device with external equipment.

[0015] The present invention is further configured such that a sealing gasket is provided between the fixing ring and the cover body, so as to further increase the sealing performance between the cover body and the fixing ring.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a flue gas dust removal high temperature resistant filter cartridge, which has the following beneficial effects:

[0018] 1. By setting a lower cylinder, an upper cylinder, a first cone surface, a second cone surface, a top ring and a fastening nut, the user can disassemble the upper cylinder and the lower cylinder by removing the fastening nut to shorten the overall length of the device, thereby facilitating the cleaning of the interior of the upper cylinder and the lower cylinder. By setting the first cone surface and the second cone surface, the sealing of the connection between the upper cylinder and the lower cylinder can be increased to prevent smoke from escaping.

[0019] 2. By setting a fixing ring, a cover body, a filter cartridge, a mounting ring, a notch, a limit block, a snap ring, a limit hole, a fixing hole, a mounting hole and a first screw, when the user needs to disassemble the filter cartridge, the cover body can be disassembled first, and then the cover body and the filter cartridge can be taken out together, and then the first screw inside the notch can be removed through the vertical plate. At this time, the snap ring can be taken out from the inside of the mounting ring to facilitate the disassembly and cleaning of the filter cartridge.

[0020] 3. By setting a fixing frame, a fixed shaft, a rotating block, a threaded rod, an avoidance hole, a mounting nut, a twisting block, a placement hole and a placement ring, when the user needs to install the cover body, the sealing ring at the bottom of the cover body can be placed into the sealing groove at the upper end of the fixing ring first, and then the threaded rod can be entered into the avoidance hole by rotating the rotating block. At this time, the mounting nut is tightened and the placement ring at the bottom is entered into the placement hole to fix the cover body. In addition, by setting a sealing gasket, the sealing between the cover body and the fixing ring can be further increased to prevent smoke from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of a flue gas dust removal high temperature resistant filter cartridge when not in use;

[0022] Figure 2 It is an overall cross-sectional view of a flue gas dust removal high temperature resistant filter cartridge;

[0023] Figure 3 It is an exploded view of the installation of the rotating block, threaded rod, air outlet pipe, filter element and second screw on the cover body;

[0024] Figure 4 It is an exploded view of the installation of the mounting ring and the first screw on the cover body;

[0025] Figure 5 It is a schematic diagram of the positions of the clamping ring, the limiting hole and the mounting hole on the filter cartridge;

[0026] Figure 6 It is a schematic diagram of the positions of the fixing ring, fixing frame and sealing groove on the upper cylinder;

[0027] Figure 7 Schematic diagram of the position of the fixing ring and the turning block on the fastening nut.

[0028] In the figure: 1, lower cylinder; 2, upper cylinder; 3, first cone surface; 4, second cone surface; 5, top ring; 6, fastening nut; 7, fixing ring; 8, cover body; 9, filter cartridge; 10, mounting ring; 11, notch; 12, limit block; 13, snap ring; 14, limit hole; 15, fixing hole; 16, mounting hole; 17, first screw; 18, fixing frame; 19, fixed shaft; 20, rotating block; 21, threaded rod; 22, avoidance hole; 23, mounting nut; 24, twisting block; 25, placement hole; 26, placement ring; 27, outlet pipe; 28, inlet pipe; 29, filter element; 30, mounting block; 31, mounting groove; 32, threaded hole; 33, second screw; 34, vertical plate; 35, sealing ring; 36, sealing groove; 37, snap ring; 38, external flange; 39, external hole; 40, sealing gasket. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0032] See also Figure 1-7A flue gas dust removal and high temperature resistant filter cartridge comprises a lower cylinder body 1, an upper cylinder body 2 is arranged at the upper end of the lower cylinder body 1, a first conical surface 3 is opened on the inner wall of the lower cylinder body 1 and located at the upper end, a second conical surface 4 is fixedly arranged on the lower end surface of the upper cylinder body 2, the second conical surface 4 is located inside the first conical surface 3 and the inclinations of the two are equal, a top ring 5 is fixedly arranged on one side of the second conical surface 4 and located on the outer wall of the upper cylinder body 2, the outer wall diameter of the top ring 5 is equal to the outer wall diameter of the lower cylinder body 1, a fastening nut 6 is arranged at the connection between the upper cylinder body 2 and the lower cylinder body 1, the inner part of the fastening nut 6 is abutted against the top ring 5, a fixing ring 7 is fixedly arranged on the upper end surface of the upper cylinder body, a cover body 8 is arranged at the upper end of the fixing ring 7, and a filter cartridge 9 is arranged at the bottom of the cover body 8.

[0033] In this embodiment, a mounting ring 10 is fixedly provided on the lower end surface of the cover body 8, and a notch 11 is opened on the outer wall of the mounting ring 10. There are multiple notches 11 and they are arranged in a circular shape. A limiting block 12 is correspondingly provided on one side of the notch 11 and on the inner wall of the mounting ring 10. A clamping ring 13 is fixedly provided on the upper end surface of the filter cartridge 9. A limiting hole 14 is opened on the outer wall of the clamping ring 13. There are multiple limiting holes 14 and the limiting blocks 12 are all located inside the limiting hole 14. A fixing hole 15 is opened on the inner wall of the notch 11, and a mounting hole 16 is correspondingly opened on the inner wall of the limiting hole 14. A first screw 17 is provided inside the fixing hole 15 and the mounting hole 16.

[0034] More specifically, the user can tighten the fastening nut 6 to make its interior press against the top ring 5, and allow the second cone surface 4 to enter the interior of the first cone surface 3, thereby increasing the sealing between the upper cylinder 2 and the lower cylinder 1 to prevent smoke from escaping. The user can remove the first screw 17 to separate the mounting ring 10 and the retaining ring 13 to disassemble the filter cartridge 9 for easy cleaning and replacement in the future.

[0035] See also Figure 1 , Figure 2 and Figure 3As an implementation method for installing the cover body 8 and the fixing ring 7: a fixing frame 18 is provided on the outer wall of the fixing ring 7, and a plurality of fixing frames 18 are arranged in a circular shape. A fixing shaft 19 is provided inside the fixing frame 18, and a rotating block 20 is rotatably provided on the fixing shaft 19. A threaded rod 21 is fixedly provided on the upper end surface of the rotating block 20. A avoiding hole 22 is correspondingly opened on the upper end surface of the cover body 8, and the threaded rod 21 is located inside the avoiding hole 22. A mounting nut 23 is provided on the threaded rod 21, and a twisting block 24 is fixedly provided on the upper end surface of the mounting nut 23. A placement hole 25 is opened on the upper end surface of the cover body 8 and located at the outer end of the avoiding hole 22. A placement ring 26 is fixedly provided on the lower end surface of the mounting nut 23, and the placement ring 26 is located inside the placement hole 25. A sealing ring 35 is fixedly provided on the lower end surface of the cover body 8. A sealing groove 36 is correspondingly opened on the upper end surface of the fixing ring 7, and the sealing ring 35 is located inside the sealing groove 36. A sealing gasket 40 is provided between the fixing ring 7 and the cover body 8.

[0036] Specifically, the user can rotate the rotating block 20 to make the threaded rod 21 enter the avoidance hole 22, and then screw the mounting nut 23 onto the threaded rod 21, and make the placement ring 26 at the bottom enter the placement hole 25 to limit the mounting nut 23 and prevent it from running out.

[0037] Please refer to Figure 3 As a further implementation method for filtering dust in the smoke: an air outlet pipe 27 is fixedly provided on the upper end surface of the cover body 8, an air inlet pipe 28 is fixedly provided on the outer wall of the lower cylinder body 1, a filter element 29 is provided inside the air outlet pipe 27, a mounting block 30 is provided on the outer wall of the filter element 29, a mounting groove 31 is correspondingly provided on the inner wall of the air outlet pipe 27, threaded holes 32 are provided on the inner walls of the mounting block 30 and the mounting groove 31, a second screw 33 is provided inside the threaded hole 32, and a vertical plate 34 is fixedly provided on the upper end surfaces of the first screw 17 and the second screw 33.

[0038] Specifically, the dust in the smoke can be filtered by setting the filter element 29.

[0039] See also Figure 2 As an implementation method for limiting the bottom of the filter cartridge 9 , a clamping ring 37 is fixedly provided on the inner wall of the lower cylinder body 1 and at the bottom, and the bottom of the filter cartridge 9 is located inside the clamping ring 37 .

[0040] Specifically, the lower end of the filter cartridge 9 may be limited to prevent shaking.

[0041] See also Figure 1 As an implementation method for connecting the device with external equipment: an external flange 38 is fixedly provided on the lower end surface of the lower cylinder 1, and an external hole 39 is opened on the external flange 38.

[0042] Specifically, the user can connect the device to external equipment through the external connection hole 39 .

[0043] In summary, when the overall device is in use: when the user needs to disassemble the upper cylinder 2 and the lower cylinder 1, the upper cylinder 2 and the lower cylinder 1 can be disassembled by removing the fastening nut 6 to shorten the overall length of the device, thereby facilitating the cleaning of the interior of the upper cylinder 2 and the lower cylinder 1, and by providing the first cone surface 3 and the second cone surface 4, the sealing of the connection between the upper cylinder 2 and the lower cylinder 1 can be increased to prevent smoke from escaping. When the filter cartridge 9 inside the device needs to be disassembled, the cover body 8 can be disassembled first, and then the cover body 8 and the filter cartridge 9 can be taken out together, and then the inside of the notch 11 can be cleaned through the vertical plate 34. The first screw 17 is removed, and the retaining ring 13 can be taken out from the inside of the mounting ring 10 to facilitate the disassembly and cleaning of the filter cartridge 9. When the user needs to install the cover body 8, the sealing ring 35 at the bottom of the cover body 8 can be first placed into the sealing groove 36 at the upper end of the fixing ring 7, and then the threaded rod 21 can be made to enter the avoidance hole 22 by rotating the rotating block 20. At this time, the mounting nut 23 is tightened and the placement ring 26 at the bottom is entered into the placement hole 25 to fix the cover body 8. In addition, by setting the sealing gasket 40, the sealing between the cover body 8 and the fixing ring 7 can be further increased to prevent smoke from escaping.

[0044] When the user needs to separate the upper cylinder 2 and the lower cylinder 1, the upper cylinder 2 and the lower cylinder 1 can be separated by removing the fastening nut 6 to shorten the overall length of the device, thereby facilitating the cleaning of the interior of the upper cylinder 2 and the lower cylinder 1, and by setting the first cone surface 3 and the second cone surface 4, the sealing of the connection between the upper cylinder 2 and the lower cylinder 1 can be increased to prevent smoke from escaping.

[0045] When it is necessary to disassemble the filter cartridge 9 inside the device, the cover body 8 can be removed first, and then the cover body 8 and the filter cartridge 9 can be taken out together, and then the first screw 17 inside the notch 11 can be removed through the vertical plate 34. At this time, the retaining ring 13 can be taken out from the inside of the mounting ring 10 to facilitate the disassembly and cleaning of the filter cartridge 9.

[0046] When the user needs to install the cover body 8, the sealing ring 35 at the bottom of the cover body 8 can be first placed into the sealing groove 36 at the upper end of the fixing ring 7, and then the threaded rod 21 can be made to enter the avoidance hole 22 by rotating the rotating block 20. At this time, the mounting nut 23 is tightened and the placement ring 26 at the bottom is entered into the placement hole 25 to fix the cover body 8. In addition, by setting the sealing gasket 40, the sealing between the cover body 8 and the fixing ring 7 can be further increased to prevent smoke from escaping.

[0047] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flue gas dust removal high temperature resistant filter cartridge, comprising a lower cylinder (1), characterized in that: An upper cylinder (2) is provided at the upper end of the lower cylinder (1); a first conical surface (3) is provided on the inner wall of the lower cylinder (1) and at the upper end; a second conical surface (4) is fixedly provided on the lower end surface of the upper cylinder (2); the second conical surface (4) is located inside the first conical surface (3) and the inclinations of the two are equal; a top ring (5) is fixedly provided on one side of the second conical surface (4) and located on the outer wall of the upper cylinder (2); the outer wall diameter of the top ring (5) is equal to the outer wall diameter of the lower cylinder (1); a fastening nut (6) is provided at the connection between the upper cylinder (2) and the lower cylinder (1); the inner part of the fastening nut (6) abuts against the top ring (5); a fixing ring (7) is fixedly provided on the upper end surface of the upper cylinder; a cover body (8) is provided at the upper end of the fixing ring (7); a filter cartridge (9) is provided at the bottom of the cover body (8).

2. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: A mounting ring (10) is fixedly provided on the lower end surface of the cover body (8), a notch (11) is provided on the outer wall of the mounting ring (10), a plurality of the notches (11) are provided and are arranged in a circular shape, a limiting block (12) is correspondingly provided on one side of the notch (11) and on the inner wall of the mounting ring (10), a clamping ring (13) is fixedly provided on the upper end surface of the filter cartridge (9), a limiting hole (14) is provided on the outer wall of the clamping ring (13), a plurality of the limiting holes (14) are provided and the limiting blocks (12) are all located inside the limiting hole (14), a fixing hole (15) is provided on the inner wall of the notch (11), a mounting hole (16) is correspondingly provided on the inner wall of the limiting hole (14), and a first screw (17) is provided inside the fixing hole (15) and the mounting hole (16).

3. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: A fixing frame (18) is provided on the outer wall of the fixing ring (7), and the fixing frames (18) are provided in plurality and arranged in a circular shape. A fixing shaft (19) is provided inside the fixing frame (18), and a rotating block (20) is rotatably provided on the fixing shaft (19). A threaded rod (21) is fixedly provided on the upper end surface of the rotating block (20). A avoiding hole (22) is correspondingly provided on the upper end surface of the cover body (8), and the threaded rod (21) is located inside the avoiding hole (22). A mounting nut (23) is provided on the threaded rod (21), and a twisting block (24) is fixedly provided on the upper end surface of the mounting nut (23).

4. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 3 is characterized in that: A placement hole (25) is provided on the upper end surface of the cover body (8) and at the outer end of the avoidance hole (22), and a placement ring (26) is fixedly provided on the lower end surface of the mounting nut (23), and the placement ring (26) is located inside the placement hole (25).

5. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: An air outlet pipe (27) is fixedly provided on the upper end surface of the cover body (8), an air inlet pipe (28) is fixedly provided on the outer wall of the lower cylinder body (1), and a filter element (29) is provided inside the air outlet pipe (27).

6. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 5 is characterized in that: A mounting block (30) is provided on the outer wall of the filter element (29), and a mounting groove (31) is correspondingly provided on the inner wall of the air outlet pipe (27). Threaded holes (32) are provided on the inner walls of the mounting block (30) and the mounting groove (31), and second screws (33) are provided inside the threaded holes (32). Vertical plates (34) are fixed to the upper end surfaces of the first screw (17) and the second screw (33).

7. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: A sealing ring (35) is fixedly provided on the lower end surface of the cover body (8), and a sealing groove (36) is correspondingly provided on the upper end surface of the fixing ring (7), and the sealing ring (35) is located inside the sealing groove (36).

8. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: A clamping ring (37) is fixedly provided on the inner wall of the lower cylinder (1) and at the bottom, and the bottom of the filter cylinder (9) is located inside the clamping ring (37).

9. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: An external flange (38) is fixedly provided on the lower end surface of the lower cylinder (1), and an external hole (39) is opened on the external flange (38).

10. The high temperature resistant filter cartridge for dust removal of flue gas according to claim 1 is characterized in that: A sealing gasket (40) is provided between the fixing ring (7) and the cover body (8).

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