Flame-retardant needled cotton and activated carbon composite air filter material

Abstract

This utility model provides a flame-retardant needle-punched cotton and activated carbon composite air filter material, relating to the field of air filtration technology, including an observation window and a filter sleeve; a ring plate is provided on the inner side of the filter element frame near the bottom, an inner sealing ring is bonded to the upper side of the ring plate of the filter element frame, a purification shell is placed on the upper side of the inner sealing ring, and activated carbon is placed inside the purification shell; an outer sealing ring is bonded to both the top and bottom of the filter sleeve, and filter cotton is bonded to the outer side of the filter sleeve; a top cover is bonded to the outer side of the observation window, and a filter element frame is screwed to the inner side of the top cover; through the arrangement of the purification shell, filter cotton, filter sleeve and activated carbon, not only is the filter element more suitable for air filtration in high-temperature air environments, but it also achieves the adsorption, interception and purification of harmful air substances, solving the problems of traditional filter elements' inability to effectively intercept harmful gases in the air and the damage of air filter materials due to heat combustion in high-temperature air environments.

Description

Technical Field

[0001] This utility model belongs to the field of air filtration technology, and more specifically, it relates to a flame-retardant needle-punched cotton and activated carbon composite air filter material. Background Technology

[0002] Air filter media is a material used to filter impurities and dust from the air. Its main function is to purify the air and ensure that it remains clean. Currently, air filter media is usually made of materials such as filter paper, non-woven fabric, and fiber cloth. It covers the outside of the filter element of air purification equipment to filter pollutants and impurities in the air. It can be seen that traditional air filter media only intercepts dust and impurities in the air. However, in industrial production sites such as thermal power plants and chemical plants, the air contains a large number of volatile organic compounds, sulfur dioxide, ammonia, ozone, and other harmful substances, which air filter media cannot effectively intercept and purify. In addition, when filtering impurities in high-temperature air, traditional paper, non-woven fabric, and fiber cloth air filter media do not have flame-retardant properties, so they are easily damaged by heat and combustion, reducing the service life and filtration performance of the filter element. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a flame-retardant needle-punched cotton and activated carbon composite air filter material, which solves the problems that traditional filter materials cannot effectively intercept harmful gases in the air and that air filter materials are damaged by heat combustion in high-temperature air environments.

[0004] This utility model provides a flame-retardant needle-punched cotton and activated carbon composite air filter material, including a chassis; the center of the chassis has a through hole running vertically through it, and a filter element frame is welded to the upper side of the chassis; it also includes an observation window and a filter sleeve; the inner side of the filter element frame has a ring plate near the bottom, an inner sealing ring is bonded to the upper side of the ring plate, a purification shell is placed on the upper side of the inner sealing ring, and an inner sealing ring is bonded to the top of the purification shell. The inner sealing ring is made of high-temperature resistant silicone material; the top and bottom of the filter sleeve are both bonded with outer sealing rings, which are also made of high-temperature resistant silicone material, and filter cotton is bonded to the outer side of the filter sleeve; a top cover is bonded to the outer side of the observation window, and a filter element frame is screwed to the inner side of the top cover.

[0005] In at least some embodiments, the filter sleeve is a cylindrical structure that runs vertically through the top and bottom. The outer side of the cylindrical structure of the filter sleeve is provided with twenty sets of elongated grooves. The elongated grooves are arranged in a circular array around the vertical central axis of the filter sleeve. The filter cotton covers the outer groove opening of the twenty sets of elongated grooves of the filter sleeve. The cylindrical structure of the filter sleeve is nested on the outer side of the filter element frame.

[0006] In at least some embodiments, the filter cotton is made entirely of flame-retardant needle-punched cotton fiber material.

[0007] In at least some embodiments, the purification shell is a cylindrical structure with an opening on the upper side, activated carbon is placed inside the cylindrical structure of the purification shell, a large number of air vents are densely distributed on the outer side of the purification shell, and exhaust vents are densely distributed at the bottom of the cylindrical structure of the purification shell.

[0008] In at least some embodiments, the top cover is a circular cover structure, the inner side of the top cover structure is provided with a threaded structure, the center of the upper side of the top cover is provided with a circular through hole, an observation window is bonded inside the circular through hole of the top cover, the observation window is made of high temperature resistant transparent glass, and the circular through hole of the top cover and the purification shell are opposite each other on the upper side opening.

[0009] In at least some embodiments, the filter element frame is a cylindrical structure that runs vertically through the body. A ring frame is welded to the outer side of the cylindrical structure of the filter element frame near the bottom. The upper side of the ring frame is provided with an annular groove. The outer side of the cylindrical structure of the filter element frame is provided with four sets of rectangular through slots. The rectangular through slots are distributed in a ring array around the filter element frame. A threaded structure is provided on the outer side of the filter element frame near the top. The threaded connection of the filter element frame is engaged with the threaded structure on the inner side of the top cover structure.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, on the one hand, the filter sleeve supports the flame-retardant needle-punched cotton fiber material filter cotton to form a nested wrapping structure on the outside of the filter element frame. This not only effectively filters dust and impurities in the air through the porous structure of the flame-retardant needle-punched cotton fiber, but also, due to the good high-temperature resistance and flame-retardant properties of the flame-retardant needle-punched cotton fiber material itself, makes the filter element more suitable for air filtration in high-temperature air environments, thus extending the filter element's service life. On the other hand, the activated carbon placed on the inner side of the purification shell and the air perforation structure on the outer side of the purification shell allow the outside air after the dust filtered by the filter cotton to pass through the air perforation and enter the purification shell. This enables the filter element to adsorb, intercept, and purify harmful substances such as volatile organic compounds, sulfur dioxide, ammonia, and ozone in industrial production sites such as thermal power and chemical plants, greatly improving the filter element's filtration performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a front view structural diagram of this utility model.

[0013] Figure 3 This is a bottom view of the structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of this utility model from a bottom view.

[0015] Figure 5This is an exploded structural diagram of the present invention.

[0016] Figure 6 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 7 This is the utility model Figure 6 Enlarged structural diagram of part A in the middle.

[0018] Figure 8 This is the utility model Figure 6 Enlarged structural diagram of part B in the middle.

[0019] Figure label: 1. Top cover; 2. Observation window; 3. Filter cotton; 4. Chassis; 5. Activated carbon; 6. Filter sleeve; 7. Outer sealing ring; 8. Inner sealing ring; 9. Purification shell; 10. Ring frame; 11. Filter element frame. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1-8 As shown, this utility model provides a flame-retardant needle-punched cotton and activated carbon composite air filter material, including a chassis 4; a through hole is provided at the center of the chassis 4, and a filter element frame 11 is welded to the upper side of the chassis 4; it also includes an observation window 2 and a filter sleeve 6; a ring plate is provided on the inner side of the filter element frame 11 near the bottom, an inner sealing ring 8 is bonded to the upper side of the ring plate of the filter element frame 11, a purification shell 9 is placed on the upper side of the inner sealing ring 8, and an inner sealing ring 8 is bonded to the top of the purification shell 9. The inner sealing ring 8 is made of high-temperature resistant silicone material; an outer sealing ring 7 is bonded to both the top and bottom of the filter sleeve 6. The outer sealing ring 7 is made of high-temperature resistant silicone material, and filter cotton 3 is bonded to the outer side of the filter sleeve 6; a top cover 1 is bonded to the outer side of the observation window 2, and the filter element frame 11 is screwed to the inner side of the top cover 1.

[0022] In this embodiment, the filter sleeve 6 is a cylindrical structure that runs vertically through the filter. The outer side of the cylindrical structure of the filter sleeve 6 is provided with twenty sets of elongated grooves. The elongated grooves are arranged in a circular array around the vertical central axis of the filter sleeve 6. The filter cotton 3 covers the outer groove openings of the twenty sets of elongated grooves of the filter sleeve 6, so that the air filtered by the filter cotton 3 flows through the twenty sets of elongated grooves of the filter sleeve 6 to the ventilated hole structure of the purification shell 9. The cylindrical structure of the filter sleeve 6 is nested on the outer side of the filter element frame 11, so that the filter sleeve 6 can be separated and removed from the filter element frame 11 for replacement, avoiding the replacement of the entire filter element and reducing the cost of filter element replacement.

[0023] In this embodiment, the filter cotton 3 is made of flame-retardant needle-punched cotton fiber material. By utilizing the good air permeability and flame retardant properties of the flame-retardant needle-punched cotton fiber material, the filter cotton 3 is improved to adapt to high-temperature environments while ensuring air permeability and filtration. This effectively avoids the filter cotton 3 being damaged by heat and extends the service life of the filter cotton 3 in high-temperature air environments.

[0024] In this embodiment, the purification shell 9 is a cylindrical structure with an opening on the upper side. Activated carbon 5 is placed inside the cylindrical structure of the purification shell 9. The outer side of the purification shell 9 is densely covered with a large number of air vents, and the bottom of the cylindrical structure of the purification shell 9 is densely covered with exhaust vents. Air containing harmful substances enters the inner side of the purification shell 9 through the air vents and comes into contact with the activated carbon 5. The activated carbon 5 adsorbs and purifies the harmful gas in the air. The purified air is discharged through the exhaust vents at the bottom of the cylindrical structure of the purification shell 9, thus completing the work of filtering, absorbing and purifying the harmful gas in the air.

[0025] In this embodiment, the top cover 1 is a circular cover structure. The inner side of the top cover 1 is provided with a threaded structure. The center of the upper side of the top cover 1 is provided with a circular through hole that runs vertically through the top and bottom. An observation window 2 is bonded inside the circular through hole of the top cover 1. The observation window 2 is made of high-temperature resistant transparent glass. The circular through hole of the top cover 1 and the purification shell 9 are opposite each other on the upper side opening, which makes it convenient for the user to observe the adsorption and purification status of the activated carbon 5 through the observation window 2.

[0026] In this embodiment, the filter element frame 11 is a cylindrical structure that extends vertically. A ring frame 10 is welded to the outer side of the cylindrical structure near the bottom. The upper side of the ring frame 10 has an annular groove. Four sets of rectangular through slots are provided on the outer side of the cylindrical structure of the filter element frame 11, arranged in a circular array around the filter element frame 11. A threaded structure is provided on the outer side of the filter element frame 11 near the top. The threaded connection of the filter element frame 11 is engaged with the threaded structure on the inner side of the top cover 1. During the rotation of the top cover 1, the top cover 1 rotates and moves up and down along the thread of the filter element frame 11. When the top cover 1 moves downwards… When activated, the top cover 1 simultaneously presses down on the filter sleeve 6 and the purification shell 9, so that the outer sealing ring 7 bonded to the top of the top cover 1 and the inner sealing ring 8 bonded to the upper side of the purification shell 9 are tightly fitted. The outer sealing ring 7 bonded to the bottom of the filter sleeve 6 is tightly fitted in the annular groove of the ring frame 10, and the bottom of the purification shell 9 is tightly fitted to the inner sealing ring 8 bonded to the upper side of the ring plate of the filter element frame 11. The ring plates of the ring frame 10 and the filter element frame 11, together with the top cover 1, clamp and seal the filter sleeve 6 and the purification shell 9 from top to bottom, ensuring that the outside air flows from the filter cotton 3 bonded to the outer side of the filter sleeve 6 to the activated carbon 5 inside the purification shell 9, and preventing the leakage of harmful gases.

[0027] The specific usage and function of this embodiment are as follows: In assembling the filter element, the activated carbon 5 is first placed inside the purification shell 9. Then, the purification shell 9 is placed inside the cylindrical structure of the filter element frame 11 until the bottom of the purification shell 9 is in contact with the upper side of the inner sealing ring 8 bonded to the inner side ring plate of the cylindrical structure of the filter element frame 11. Next, the filter sleeve 6, covered with and bonded with filter cotton 3, is placed on the outer side of the filter element frame 11 until the outer sealing ring 7 bonded to the bottom of the filter sleeve 6 is in contact with the annular groove of the frame 10. Finally, the top cover 1 is fastened to the top of the filter element frame 11, so that the threaded structure on the inner side of the top cover 1 mates with the threaded structure on the outer side of the filter element frame 11. Because the threaded structure on the inner side of the top cover 1 meshes with the threaded structure on the outer side of the filter element frame 11, the top cover 1 moves downwards along the threaded structure on the outer side of the filter element frame 11 during rotation until the bottom of the top cover 1 presses against the top of the filter sleeve 6 and bonds. The outer sealing ring 7 and the inner sealing ring 8 are bonded to the upper side of the purification shell 9 to complete the assembly of the filter element. When filtering harmful substances and dust in the air in high-temperature environments, the outside air flows to the filter cotton 3. At this time, the air containing harmful substances enters the inner side of the filter sleeve 6 through the porous structure of the flame-retardant needle-punched cotton fiber material of the filter cotton 3 and the long groove on the outer side of the filter sleeve 6. The dust and impurities in the air are trapped on the outer side of the filter cotton 3. The air containing harmful substances enters the interior of the purification shell 9 through the rectangular groove of the filter element frame 11 and the vent hole of the purification shell 9. The activated carbon 5 placed inside the purification shell 9 adsorbs and intercepts harmful substances such as volatile organic compounds, sulfur dioxide, ammonia and ozone in the air. The purified air is discharged outward through the exhaust hole at the bottom of the purification shell 9, thus completing the filter element's work of filtering harmful substances and dust in the air.

[0028] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies. Any method that achieves the desired beneficial effect can be implemented. The activated carbon 5 used above is a common component on the market; upon purchase and use, simply connect it according to the instruction manual purchased with the product. Therefore, it will not be described in detail here.

[0029] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A fire-retardant needle-punched cotton and activated carbon composite air filter material, comprising a base plate (4); a through hole is arranged in the center of the base plate (4), and a filter core frame (11) is welded to the upper side of the base plate (4); characterized in that: It also includes an observation window (2) and a filter sleeve (6); the inner side of the filter element frame (11) is provided with a ring plate near the bottom, and an inner sealing ring (8) is glued to the upper side of the ring plate of the filter element frame (11). A purification shell (9) is placed on the upper side of the inner sealing ring (8), and an inner sealing ring (8) is glued to the top of the purification shell (9). The inner sealing ring (8) is made of high-temperature resistant silicone material; the top and bottom of the filter sleeve (6) are both glued with an outer sealing ring (7), which is made of high-temperature resistant silicone material. The outer side of the filter sleeve (6) is covered with a filter cotton (3); the outer side of the observation window (2) is glued with a top cover (1), and the inner side of the top cover (1) is screwed with a filter element frame (11).

2. The flame-retardant needle-punched cotton and activated carbon composite air filter material as described in claim 1, characterized in that: The filter sleeve (6) is a cylindrical structure that runs vertically through the top and bottom. The outer side of the cylindrical structure of the filter sleeve (6) is provided with twenty sets of long grooves. The long grooves are arranged in a ring array around the vertical central axis of the filter sleeve (6). The filter cotton (3) covers the outer groove opening of the twenty sets of long grooves of the filter sleeve (6). The cylindrical structure of the filter sleeve (6) is nested on the outer side of the filter element frame (11).

3. The flame-retardant needle-punched cotton and activated carbon composite air filter material as described in claim 1, characterized in that: The filter cotton (3) is made of flame-retardant needle-punched cotton fiber material.

4. The flame-retardant needle-punched cotton and activated carbon composite air filter material as described in claim 1, characterized in that: The purification shell (9) is a cylindrical structure with an opening on the upper side. Activated carbon (5) is placed inside the cylindrical structure of the purification shell (9). A large number of air vents are densely distributed on the outer side of the purification shell (9). Exhaust vents are densely distributed at the bottom of the cylindrical structure of the purification shell (9).

5. The flame-retardant needle-punched cotton and activated carbon composite air filter material as described in claim 1, characterized in that: The top cover (1) is a circular cover structure. The inner side of the cover structure of the top cover (1) is provided with a threaded structure. The center of the upper side of the top cover (1) is provided with a circular through hole that runs vertically through the top and bottom. An observation window (2) is bonded inside the circular through hole of the top cover (1). The observation window (2) is made of high temperature resistant transparent glass. The circular through hole of the top cover (1) and the purification shell (9) are opposite each other on the upper side opening.

6. The flame-retardant needle-punched cotton and activated carbon composite air filter material as described in claim 1, characterized in that: The filter element frame (11) is a cylindrical structure that runs vertically through the top and bottom. A ring frame (10) is welded to the outer side of the cylindrical structure of the filter element frame (11) near the bottom. The upper side of the ring frame (10) is provided with an annular groove. The outer side of the cylindrical structure of the filter element frame (11) is provided with four sets of rectangular through slots. The rectangular through slots are arranged in a ring array around the filter element frame (11). The outer side of the filter element frame (11) near the top is provided with a threaded structure. The threaded connection of the filter element frame (11) is engaged with the threaded structure on the inner side of the top cover (1) cover structure.

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