Asphalt fume dust purification device

Abstract

The utility model belongs to bitumen smoke gas filtration technical field, specifically provides a kind of bitumen smoke gas dust purification device, including filter cartridge, support piece and filter unit, and the accommodating cavity is formed in filter cartridge inside, support piece includes mounting plate and two support sleeves, filter unit is located in the annular space of two support sleeves, overall structure is compact.Mounting plate is detachably arranged in the installation port of filter cartridge, and the air hole on support sleeve ensures that smoke gas passes smoothly.In normal use, smoke gas enters accommodating cavity from air inlet, is filtered after passing through filter unit, is discharged through air outlet, and the dust in smoke gas is intercepted by filter unit.When cleaning is needed, the user can remove support piece and filter unit for replacement or cleaning, solving the problem of not easy to replace filter medium in the prior art, reducing maintenance cost and time.In the present application, the mounting plate and the filter cartridge are detachably connected, and the filter unit can effectively capture the dust in the bitumen smoke gas.

Description

Technical Field

[0001] This application belongs to the field of asphalt fume filtration technology, specifically an asphalt fume dust purification device. Background Technology

[0002] Asphalt mixtures are widely used in the construction industry, and the process of producing asphalt is called the mixing process. The mixing process involves drying and heating raw materials of different particle sizes, such as crushed stone, mineral powder, rubber, resin, polymer, and finely ground rubber powder, and then mixing them with hot asphalt in a specific ratio at high temperature to obtain asphalt mixtures.

[0003] During the mixing process, high-temperature asphalt fumes are generated, whose main components include volatile organic compounds (VOCs), odorous gases, and dust. Asphalt fumes must be treated and meet standards before being released into the atmosphere. Existing technologies for treating asphalt fumes include chemical decomposition, physical adsorption, and oxidative incineration, each with its own characteristics and application scenarios. Typically, asphalt fumes are transported to treatment equipment via ductwork. Because the fumes contain dust, over time, this dust can adhere to the inner walls of the ductwork, causing blockages. This blockage increases airflow resistance and may be ignited by the high-temperature fumes, posing a safety hazard. Therefore, it is necessary to install a coarse filter at the inlet of the ductwork to pre-filter the dust in the fumes. In the existing technology, most filtration equipment for flue gas conveying pipelines adopts physical filtration by filter media. Since the filter needs to be installed at the very beginning of the flue gas conveying pipeline, the filter media needs to be replaced frequently in actual use to ensure smooth operation. Although similar products in the existing technology can achieve the expected filtration effect, they have the problem of the filter media being difficult to replace. Utility Model Content

[0004] Based on the above-mentioned technical problems, this application provides an asphalt fume dust purification device to solve the technical problem that the filter media inside the asphalt fume filtration equipment is not easy to replace, resulting in inconvenient maintenance.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide an asphalt fume dust purification device, comprising: The filter cartridge has a hollow interior forming a receiving cavity. One end of the filter cartridge has an air inlet, and the other end has an installation port. The side of the filter cartridge has an air outlet. The air inlet, the installation port, and the air outlet are respectively connected to the receiving cavity. A support member includes a mounting plate and two support sleeves. The mounting plate is detachably disposed at the mounting opening. The support sleeves are annular, and the two support sleeves are respectively located on the side of the mounting plate facing the receiving cavity and are coaxially arranged. The support sleeves extend along the long axis of the receiving cavity to the end of the receiving cavity that communicates with the air inlet. The inner diameter of the inner support sleeve is larger than the diameter of the air inlet. The support sleeve has a vent hole that penetrates its own wall thickness. The filter unit is located within the annular space formed by the two support sleeves.

[0006] In one possible implementation, the filter cartridge is a vertical cylindrical shape, the air inlet is located at the bottom of the filter cartridge, and the mounting port is located at the top of the filter cartridge.

[0007] In one possible implementation, the mounting plate has a handle on the side opposite to the filter cartridge.

[0008] In one possible implementation, the outer diameter of the outer support sleeve is smaller than the inner diameter of the receiving cavity.

[0009] In one possible implementation, the mounting plate has a plurality of first mounting holes spaced apart along the circumferential direction. The first mounting holes are light holes. The end of the filter tube that is in contact with the mounting plate has a second mounting hole. The second mounting hole is a threaded hole. The mounting plate is provided with screws. The screws pass through the first mounting holes and are threadedly connected to the corresponding second mounting holes.

[0010] In one possible implementation, the air inlet is connected to an air inlet pipe, and the air outlet is connected to an air outlet pipe.

[0011] In one possible implementation, the filter unit is filter cotton.

[0012] In one possible implementation, the support sleeve includes: Multiple support rods are arranged in a circular array around the central axis of the receiving cavity. One end of each support rod is connected to the mounting plate, and the other end extends axially along the receiving cavity. A support ring is arranged around the plurality of support rods.

[0013] In one possible implementation, the bottom of the support sleeve located in the inner ring extends outward to form a first stop portion, and the bottom of the support sleeve located in the outer ring extends inward to form a second stop portion.

[0014] In one possible implementation, a plurality of the ventilation holes are evenly distributed on the support sleeve.

[0015] Compared with the prior art, the beneficial effects of the asphalt fume dust purification device provided in this application are: The asphalt fume dust purification device provided in this application includes a filter cartridge, a support component, and a filter unit. The filter cartridge has an internal cavity. The support component includes a mounting plate and two support sleeves. The filter unit is located within the annular space of the two support sleeves, resulting in a compact overall structure. The mounting plate is detachably mounted at the mounting port of the filter cartridge, and the vent holes on the support sleeves ensure smooth passage of the flue gas. During normal use, the flue gas enters the cavity through the inlet, is filtered by the filter unit, and is discharged through the outlet. Dust in the flue gas is trapped by the filter unit. When cleaning is required, the user can remove the support component and the filter unit for replacement or cleaning, solving the problem of difficult filter media replacement in existing technologies and reducing maintenance costs and time. In this application, the mounting plate is detachably connected to the filter cartridge, and the filter unit can effectively capture dust in the asphalt fume. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the asphalt fume dust purification device provided in the embodiments of this application; Figure 2 This is an exploded view of the assembly of the asphalt fume dust purification device provided in the embodiments of this application; Figure 3 This is an internal cross-sectional view of the asphalt fume dust purification device provided in the embodiments of this application; Figure 4 This is a schematic diagram of the support structure in the embodiments of this application; Explanation of reference numerals in the attached figures: 10. Filter cartridge; 11. Air inlet; 12. Mounting port; 121. Second mounting hole; 13. Air outlet; 14. Air inlet pipe; 15. Air outlet pipe; 20. Support component; 21. Mounting plate; 211. Handle; 212. First mounting hole; 22. Support sleeve; 221. Support rod; 222. Support ring; 223. First stop; 224. Second stop; 23. Screw; 30. Filter unit. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] Please refer to the following: Figures 1 to 4 The asphalt fume dust purification device provided in the embodiments of this application will now be described.

[0024] This application provides an asphalt fume dust purification device, including a filter cylinder 10, a support member 20, and a filter unit 30. The filter cylinder 10 can be cylindrical or polygonal in shape, with a hollow interior forming a receiving cavity. One end of the filter cylinder 10 has an air inlet 11, and the other end has an installation port 12. The side of the filter cylinder 10 has an air outlet 13, and the air inlet 11, installation port 12, and air outlet 13 are respectively connected to the receiving cavity.

[0025] The filter cartridge 10 can be vertical, horizontal, or tilted at an angle to the horizontal. Please refer to sections 1 to 12. Figure 3When the filter cartridge 10 is set vertically, the air inlet 11 is opened at the bottom of the filter cartridge 10 and the mounting port 12 is opened at the top of the filter cartridge 10. The air inlet is opened from the bottom and the air outlet is opened from the side. The mounting port 12 is located at the top of the filter cartridge 10, which makes it easy to remove the support 20 and the filter unit 30 from the top for cleaning or replacement.

[0026] The filter cartridge 10 adopts a vertically placed cylindrical structure and can be made of high-temperature resistant metal materials (such as stainless steel) to withstand the high temperature of asphalt fumes. The air inlet 11 is connected to the air inlet pipe 14, and the air outlet 13 is connected to the air outlet pipe 15. Both the air inlet pipe 14 and the air outlet pipe 15 can be fixedly connected to the filter cartridge 10 by welding. The air inlet pipe 14 is used to introduce the asphalt fumes, and the air outlet pipe 15 is used to transport the filtered fumes to subsequent fumes ducts or fumes treatment equipment.

[0027] The support member 20 includes a mounting plate 21 and two support sleeves 22, one inner and one outer. The mounting plate 21 is a flat plate adapted to the mounting port 12 and is detachably mounted on the mounting port 12. The support sleeves 22 are annular, and the two support sleeves 22 are located on the side of the mounting plate 21 facing the receiving cavity and are coaxially arranged. The support sleeves 22 extend along the long axis of the receiving cavity and abut against the end of the receiving cavity that communicates with the air inlet 11. The inner diameter of the inner support sleeve 22 is larger than the diameter of the air inlet 11. The support sleeve 22 has a vent hole that penetrates its own wall thickness. The size of the vent hole can be designed to be relatively large to ensure smooth airflow.

[0028] Mounting plate 21 is detachably mounted on mounting port 12 to seal the top of filter cartridge 10. Two support sleeves 22 are annular and coaxially arranged. The bottom of the support sleeve 22 abuts against the end of the receiving cavity near the air inlet 11 to ensure stable support. The inner diameter of the inner support sleeve 22 is larger than the diameter of the air inlet 11 to avoid obstructing the entry of flue gas.

[0029] The outer diameter of the outer support sleeve 22 is smaller than the inner diameter of the receiving cavity, meaning the outer support sleeve 22 and the inner wall of the receiving cavity are in a clearance fit. This design facilitates installation and disassembly, and also helps the flue gas to pass through the filter unit 30 from different directions before converging at the outlet 13. Each support sleeve 22 has multiple evenly distributed vent holes on its wall. The support sleeve 22 can be made of woven metal wire or bent perforated metal plate, as long as it has sufficient mechanical strength.

[0030] The filter unit 30 is disposed within the annular space formed by the inner and outer support sleeves 22 and is used to filter dust in the flue gas. The filter unit 30 can be made of filter cotton (such as glass fiber cotton or high-temperature resistant synthetic fiber cotton), which has good filtration performance and high-temperature resistance. The filter unit 30 can be filled or rolled up in the annular space, and the filter unit 30 can be removed together with the support 20 for easy replacement.

[0031] In addition to using filter cotton, the filter unit 30 can also be other objects that can coarsely filter dust in asphalt fumes.

[0032] Compared with the prior art, the beneficial effects of the asphalt fume dust purification device provided in this embodiment are: The asphalt fume dust purification device provided in this embodiment includes a filter cylinder 10, a support member 20, and a filter unit 30. The filter cylinder 10 has an internal cavity. The support member 20 includes a mounting plate 21 and two support sleeves 22. The filter unit 30 is located within the annular space of the two support sleeves 22, resulting in a compact overall structure. The mounting plate 21 is detachably mounted at the mounting port 12 of the filter cylinder 10, and the vent holes on the support sleeves 22 ensure smooth passage of the flue gas. During normal use, the flue gas enters the cavity through the inlet 11, is filtered by the filter unit 30, and is discharged through the outlet 13. The dust in the flue gas is trapped by the filter unit 30. When cleaning is required, the user can remove the support member 20 and the filter unit 30 for replacement or cleaning, solving the problem of difficult replacement of the filter media in the prior art and reducing maintenance costs and time. In this application, the mounting plate 21 is detachably connected to the filter cylinder 10, and the filter unit 30 can effectively capture dust in the asphalt fume.

[0033] Please see Figure 1 In order to facilitate the removal of the support member 20 from bottom to top, a handle 211 is provided on the side of the mounting plate 21 away from the filter cylinder 10 for easy gripping by the operator.

[0034] The outer diameter of the outer support sleeve 22 is smaller than the inner diameter of the receiving cavity. There is a preset gap between the outer wall of the outer support sleeve 22 and the inner wall of the receiving cavity. The gap width can be 5-20mm, or other sizes.

[0035] Please see Figure 2 To facilitate the fixing of the mounting plate 21, a plurality of first mounting holes 212 are provided at intervals along the circumferential direction on the mounting plate 21. The first mounting holes 212 are light holes. A second mounting hole 121 is provided at the end of the filter cartridge 10 that is in contact with the mounting plate 21. The second mounting hole 121 is a threaded hole. A plurality of screws 23 are provided on the mounting plate 21. The screws 23 pass through the first mounting holes 212 and are threadedly connected to the corresponding second mounting holes 121. The plurality of screws 23 are evenly distributed in the circumferential direction.

[0036] Please see Figure 4The support sleeve 22 includes support rods 221 and support rings 222. Multiple support rods 221 are arranged in a circular array with the central axis of the receiving cavity as the axis. One end of the support rod 221 is connected to the mounting plate 21, and the other end extends along the axial direction of the receiving cavity. The support ring 222 is arranged around the multiple support rods 221. The support ring 222 and the support rods 221 are welded and fixed together. The support ring 222 and the support rods 221 form the above-mentioned vent hole.

[0037] To prevent the filter unit 30 from falling off when the support member 20 is removed, a structure for stopping and limiting the filter unit 30 can be provided at the bottom of the support sleeve 22. Specifically, a first stop portion 223 is formed by extending outward from the bottom of the inner ring support sleeve 22, and a second stop portion 224 is formed by extending inward from the bottom of the outer ring support sleeve 22.

[0038] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An asphalt fume dust purification device, characterized in that, include: The filter cylinder (10) has a hollow interior forming a receiving cavity. One end of the filter cylinder (10) is provided with an air inlet (11) and the other end is provided with an installation port (12). The side of the filter cylinder (10) is provided with an air outlet (13). The air inlet (11), the installation port (12) and the air outlet (13) are respectively connected to the receiving cavity. The support member (20) includes a mounting plate (21) and two support sleeves (22). The mounting plate (21) is detachably disposed at the mounting opening (12). The support sleeves (22) are annular, and the two support sleeves (22) are respectively located on the side of the mounting plate (21) facing the receiving cavity and are coaxially arranged. The support sleeves (22) extend along the long axis of the receiving cavity to one end of the receiving cavity that communicates with the air inlet (11). The inner diameter of the inner support sleeve (22) is larger than the diameter of the air inlet (11). The support sleeve (22) has a vent hole that penetrates its own wall thickness. The filter unit (30) is located in the annular space formed by the two support sleeves (22).

2. The asphalt fume dust purification device according to claim 1, characterized in that, The filter cylinder (10) is a vertical cylindrical shape, the air inlet (11) is located at the bottom of the filter cylinder (10), and the mounting port (12) is located at the top of the filter cylinder (10).

3. The asphalt fume dust purification device according to claim 1, characterized in that, The mounting plate (21) is provided with a handle (211) on the side opposite to the filter cylinder (10).

4. The asphalt fume dust purification device according to claim 1, characterized in that, The outer diameter of the support sleeve (22) located on the outside is smaller than the inner diameter of the receiving cavity.

5. The asphalt fume dust purification device according to claim 1, characterized in that, The mounting plate (21) has a plurality of first mounting holes (212) spaced apart along the circumferential direction. The first mounting holes (212) are light holes. The filter cylinder (10) has a second mounting hole (121) at one end that is in contact with the mounting plate (21). The second mounting hole (121) is a threaded hole. The mounting plate (21) is provided with screws (23). The screws (23) pass through the first mounting holes (212) and are threadedly connected to the corresponding second mounting holes (121).

6. The asphalt fume dust purification device according to claim 1, characterized in that, The air inlet (11) is connected to the air inlet pipe (14), and the air outlet (13) is connected to the air outlet pipe (15).

7. The asphalt fume dust purification device according to claim 1, characterized in that, The filter unit (30) is filter cotton.

8. The asphalt fume dust purification device according to claim 1, characterized in that, The support sleeve (22) includes: Multiple support rods (221) are arranged in a circular array around the central axis of the receiving cavity. One end of each support rod (221) is connected to the mounting plate (21), and the other end extends axially along the receiving cavity. A support ring (222) is arranged around a plurality of support rods (221), and the support ring (222) and the support rods (221) together form the ventilation hole.

9. The asphalt fume dust purification device according to claim 1, characterized in that, The bottom of the support sleeve (22) located in the inner ring extends outward to form a first stop portion (223), and the bottom of the support sleeve (22) located in the outer ring extends inward to form a second stop portion (224).

10. The asphalt fume dust purification device according to claim 1, characterized in that, The multiple ventilation holes are evenly distributed on the support sleeve (22).

Images