Device for collecting air containing nitrogen oxides
By designing an air collection device with an irregularly shaped shell and brush plate structure, the problem of low filtration efficiency during backwashing of traditional devices is solved, achieving continuous filtration effect.
Patent Information
- Application Number
- CN202520143972.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional air collection devices cannot filter properly during backwashing to clean the filter plates, resulting in reduced processing efficiency.
Design an air collection device containing nitrogen oxides, which adopts an irregularly shaped shell and a brush plate structure. The brush plate and filter plate are moved by a rotating shaft. The brush bristles scrape off particulate impurities on the surface of the filter plate to avoid clogging and achieve continuous filtration.
This improves the processing efficiency of the air collection device, avoids filtration interruptions caused by blockages, and achieves continuous filtration.
Smart Images
Figure CN223760671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air filtration technology, specifically to an air collection device containing nitrogen oxides. Background Technology
[0002] During boiler operation, a large amount of flue gas is generated, which contains a large number of dust particles and gaseous nitrogen oxides. When people directly discharge the flue gas into the atmosphere, some nitrogen oxides are toxic and seriously endanger human health. Air collection devices containing nitrogen oxides are specially designed to capture and collect nitrogen oxides in the air. Such devices are usually used in environmental monitoring, industrial waste gas treatment or laboratory research to ensure that nitrogen oxides do not escape into the atmosphere, thereby protecting the environment and human health.
[0003] When filtering exhaust gas containing nitrogen oxides, traditional air collection devices often encounter blockages due to the presence of large dust particles within the nitrogen oxides, causing these particles to adhere to the filter plates. A common solution is to use a backflushing system to remove these particles. However, during backflushing, the air collection device cannot perform normal filtration until the backflushing process is complete, thus reducing its efficiency. Therefore, those skilled in the art have provided an air collection device for nitrogen oxides to address the problems described in the background section. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides an air collection device containing nitrogen oxides, which solves the problem that when traditional backflushing structures clean filter plates, the air collection device cannot perform normal filtration and must wait for backflushing before continuing filtration, thus reducing the processing efficiency of the air collection device.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: an air collection device containing nitrogen oxides, comprising an irregularly shaped shell, the irregularly shaped shell being composed of a semicircle and a semiellipse, the semicircle being disposed on the upper side of the semiellipse, an air inlet pipe being connected to one side of the irregularly shaped shell for inputting flue gas containing nitrogen oxides into the irregularly shaped shell, an air outlet pipe being connected to the upper end of the irregularly shaped shell for connecting an air extraction device, a slag discharge pipe being connected to the lower end of the irregularly shaped shell for conveying and collecting large particles after filtration, and a support being installed at the bottom of the irregularly shaped shell;
[0008] A motor is installed on the rear side of the irregularly shaped shell. The motor drives a rotating shaft to the output end facing the inside of the irregularly shaped shell. A brush plate is installed on the rotating shaft. Brush bristles are installed on the left and right side walls of the brush plate. Limiting sleeves are installed on the front and rear sides of the brush plate. A filter plate is fitted around the brush plate. A sliding groove is opened in the filter plate. A limiting rod is set in the sliding groove. A spring is fitted on the limiting rod. The spring is a tension spring.
[0009] Preferably, the filter plate and the brush plate are slidably engaged, the limiting sleeve and the sliding groove are slidably engaged, and the limiting rod and the limiting sleeve are slidably engaged.
[0010] Preferably, one end of the spring is connected to the limiting sleeve, and the other end of the spring is connected to the inner wall of one end of the slide groove.
[0011] Preferably, the brush bristles are inserted into the inner wall of the filter plate.
[0012] Preferably, the end of the filter plate facing the irregularly shaped shell is in contact with the inner wall of the irregularly shaped shell. When the rotating shaft rotates and drives the brush plate and filter plate to move from the semi-circular area to the semi-elliptical area, as the inner radius of the irregularly shaped shell changes, the filter plate moves downward under the tension of the spring when it moves to the lower part of the irregularly shaped shell. During the process of the filter plate extending, the bristles on the brush plate scrape the inside of the filter plate, thereby pushing out the particulate impurities attached to the filter plate.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides an air collection device containing nitrogen oxides, which has the following beneficial effects:
[0015] Through design, as the rotating shaft drives the brush plate and filter plate to move from a semi-circular area to a semi-elliptical area, the filter plate moves downward under the tension of the spring when it reaches the lower part of the irregular shell, due to the change in the inner radius of the shell. During the extension of the filter plate, the bristles on the brush plate scrape the inside of the filter plate, thereby pushing out the particulate impurities attached to the filter plate and causing them to fall into the slag discharge pipe for collection. In this structure, the rotating filter plate filters particulate matter in the flue gas, and the sliding sleeve characteristic of the filter plate and brush plate allows for continuous cleaning of the filter plate, preventing particulate matter from adhering to the filter plate and causing the air collection device to fail to perform normal filtration. There is no need to wait for the backflushing mechanism to perform backflushing, thus improving the processing efficiency of the air collection device. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of an air collection device containing nitrogen oxides provided in an embodiment of this application.
[0017] Figure 2 This is a schematic diagram of the motor structure in an air collection device containing nitrogen oxides provided in an embodiment of this application.
[0018] Figure 3 This is a cross-sectional view of the irregularly shaped outer shell of an air collection device containing nitrogen oxides provided in an embodiment of this application.
[0019] Figure 4 This is a cross-sectional view of the filter plate in an air collection device containing nitrogen oxides provided in an embodiment of this application.
[0020] Figure 5 This application provides an embodiment of an air collection device containing nitrogen oxides. Figure 4 Enlarged view of the structure at point A.
[0021] In the diagram: 1. Irregularly shaped outer shell; 2. Support frame; 3. Air inlet pipe; 4. Air outlet pipe; 5. Slag discharge pipe; 6. Motor; 7. Rotating shaft; 8. Brush plate; 801. Brush bristles; 802. Limiting sleeve; 9. Filter plate; 901. Slide groove; 902. Limiting rod; 10. Spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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] This utility model provides a technical solution: an air collection device containing nitrogen oxides. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 5 The system includes an irregularly shaped outer shell 1, which is composed of a semicircle and a semi-ellipse, with the semicircle positioned on the upper side of the semi-ellipse. An air inlet pipe 3 is connected to one side of the irregularly shaped outer shell 1, allowing flue gas containing nitrogen oxides to be introduced into the shell. An air outlet pipe 4 is connected to the upper end of the shell, which is connected to an extraction device. A slag discharge pipe 5 is connected to the lower end of the shell, used for conveying and collecting large particles after filtration. A support 2 is installed at the bottom of the irregularly shaped outer shell 1. A motor 6 is installed on the rear side of the irregularly shaped outer shell 1. The output end of the motor 6 facing the inside of the irregularly shaped outer shell 1 is connected to a rotating shaft 7. A brush plate 8 is installed on the rotating shaft 7. Brush bristles 801 are installed on the left and right side walls of the brush plate 8. Limiting sleeves 802 are installed on the front and rear sides of the brush plate 8. A filter plate 9 is sleeved around the brush plate 8. A sliding groove 901 is opened in the filter plate 9. A limiting rod 902 is set in the sliding groove 901. A spring 10 is sleeved on the limiting rod 902. The spring 10 is a tension spring.
[0024] Please see Figure 3 , Figure 4 , Figure 5 The filter plate 9 is slidably engaged with the brush plate 8, the limiting sleeve 802 is slidably engaged with the sliding groove 901, the limiting rod 902 is slidably sleeved with the limiting sleeve 802, one end of the spring 10 is connected to the limiting sleeve 802, and the other end of the spring 10 is connected to the inner wall of one end of the sliding groove 901. The bristles 801 are inserted into contact with the inner wall of the filter plate 9, and the end of the filter plate 9 facing the irregular shell 1 is in contact with the inner wall of the irregular shell 1. When the rotating shaft 7 rotates and drives the brush plate 8 and the filter plate 9 to move from the semi-circular area to the semi-elliptical area, as the inner radius of the irregular shell 1 changes, the filter plate 9 moves downward under the tension of the spring 10 when it moves to the lower part of the irregular shell 1. During the extension of the filter plate 9, the bristles 801 on the brush plate 8 scrape the inside of the filter plate 9, thereby pushing out the particulate impurities attached to the filter plate 9.
[0025] The utility model includes an air collection device containing nitrogen oxides, comprising an irregularly shaped outer shell 1, a motor 6, a rotating shaft 7, a brush plate 8, and a filter plate 9. The irregularly shaped outer shell 1 is composed of a semicircle and a semi-ellipse, with the semicircle positioned on the upper side of the semi-ellipse. The brush plate 8 has concave surfaces on both sides, in which brush bristles 801 are installed. The filter plate 9 is hollow and is slidably inserted into the brush plate 8.
[0026] An air inlet pipe 3 is provided on one side of the irregularly shaped shell 1 for inputting flue gas containing nitrogen oxides into the irregularly shaped shell 1. An air outlet pipe 4 is connected to the top of the irregularly shaped shell 1 and an air extraction device is connected to the air outlet pipe 4. A slag discharge pipe 5 is connected to the bottom of the irregularly shaped shell 1 for conveying and collecting large particles after filtration.
[0027] Motor 6 is installed on the rear side of the irregularly shaped housing 1. After the output end of motor 6 drives the rotating shaft 7, the rotating shaft 7 is rotatably engaged with the irregularly shaped housing 1. Several brush plates 8 are fan-shaped installed on the rotating shaft 7, and filter plates 9 are sleeved on the brush plates 8. The filter plates 9 rotate counterclockwise under the drive of motor 6. Since the filter plates 9 have a sliding groove 901, the ends of the brush plates 8 are equipped with limit sleeves 802. When the brush plates 8 are sleeved with the filter plates 9, the limit sleeves 802 slide and engage with each other. The limit rod 902 set on the sliding sleeve slides and engages with the limit sleeve 802. A spring is sleeved on the limit rod 902. Spring 10, one end of which is connected to the limiting sleeve 802, and the other end is connected to the inner wall of the end of the slide groove 901. Spring 10 is a tension spring. When the rotating shaft 7 rotates and drives the brush plate 8 and filter plate 9 to move from the semi-circular area to the semi-elliptical area, as the inner radius of the irregular shell 1 changes, the filter plate 9 moves downward under the tension of spring 10 when it moves to the lower part of the irregular shell 1. During the process of the filter plate 9 extending, the bristles 801 on the brush plate 8 scrape the inside of the filter plate 9, thereby pushing out the particulate impurities attached to the filter plate 9 and causing them to fall into the slag discharge pipe 5 for collection and treatment.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0029] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for collecting air containing nitrogen oxides, comprising a profiled casing (1), characterised in that: The special-shaped shell (1) is composed of a semicircle and a semi-ellipse, the semicircle is arranged on the upper side of the semi-ellipse, one side of the special-shaped shell (1) is connected with an air inlet pipe (3), the upper end of the special-shaped shell (1) is connected with an air outlet pipe (4), the lower end of the special-shaped shell (1) is connected with a slag discharge pipe (5), and the bottom end of the special-shaped shell (1) is installed with a support (2); The rear side of the special-shaped shell (1) is installed with a motor (6), the output end of the motor (6) is drivingly connected with a rotating shaft (7) towards the special-shaped shell (1), the rotating shaft (7) is installed with a brush plate (8), the left and right side walls of the brush plate (8) are installed with brush hairs (801), the front and rear sides of the brush plate (8) are installed with limiting sleeves (802), the brush plate (8) is sleeved with a filter plate (9), the filter plate (9) is provided with a sliding groove (901), the sliding groove (901) is provided with a limiting rod (902), and the limiting rod (902) is sleeved with a spring (10).
2. An air collection device containing nitrogen oxides according to claim 1, characterized in that: The filter plate (9) and the brush plate (8) are slidably connected, the limiting sleeve (802) and the sliding groove (901) are slidably connected, and the limiting rod (902) and the limiting sleeve (802) are slidably connected.
3. The nitrogen oxide-containing air collection device of claim 1, wherein: One end of the spring (10) is connected with the limiting sleeve (802), and the other end of the spring (10) is connected with the inner wall of one end of the sliding groove (901).
4. The nitrogen oxide-containing air collection device of claim 1, wherein: The brush hair (801) is in contact with the inner wall of the filter plate (9).
5. The nitrogen oxide-containing air collection device of claim 1, wherein: The end of the filter plate (9) towards the special-shaped shell (1) is in contact with the inner wall of the special-shaped shell (1).