Filtering device for carbon molecular sieve nitrogen making machine

Abstract

The utility model provides a filtering device for a carbon molecular sieve nitrogen making machine, and relates to the technical field of filtering, the filtering device comprises a shell, the top of the shell is provided with an air inlet, one side of the shell is provided with an opening, the opening is provided with a sealing cover, the inner side of the sealing cover is provided with a filtering frame matched with the inner wall of the shell, and the filtering frame is provided with a filtering net; a filter screen is arranged on the filter frame, a cleaning assembly used for cleaning the filter screen is rotatably arranged on the filter frame, a driving assembly used for driving the cleaning assembly to rotate is arranged on the sealing cover, and an air outlet is formed in the lower portion of one side of the shell. Impurities are prevented from blocking the filter screen, so that the filter screen maintains good air permeability and filtering effect for a long time, the frequency of taking the filter screen out of the shell for cleaning is reduced, and the cleaning cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtration, in particular to a filtering device for a carbon molecular sieve nitrogen generator. BACKGROUND

[0002] In coal mining operations, in order to ensure safety production and prevent gas explosion and other accidents, carbon molecular sieve nitrogen generators are often used to generate nitrogen on site in the mine for inerting goaf and the like.

[0003] A coal mine underground carbon molecular sieve nitrogen generator is disclosed in Chinese Patent Publication No. CN217526785U. The filtering assembly is composed of an installation cylinder and an installation shell, and an installation cavity is formed on the side of the installation cylinder. When the filtering assembly needs to be cleaned during operation, it can be easily disassembled by directly disassembling the installation shell on the side, avoiding the disassembly of the pipeline installed on the end cover and improving the overall disassembly efficiency of the filter screen.

[0004] However, the filtering assembly of the above-mentioned coal mine underground carbon molecular sieve nitrogen generator lacks a cleaning component for the filter screen. In the complex and harsh environment of the coal mine, the filter screen is easily clogged with a large amount of coal dust, rock dust and other impurities, affecting the filtering efficiency of the filter screen, and requiring frequent disassembly and cleaning of the filter screen, increasing the cleaning cost. SUMMARY

[0005] The purpose of the present application is to provide a filtering device for a carbon molecular sieve nitrogen generator, which can solve the technical problem of the filtering assembly of the existing underground carbon molecular sieve nitrogen generator lacking a cleaning component, the filter screen being easily clogged with coal dust and rock dust, reducing the filtering efficiency, and requiring frequent disassembly and cleaning, increasing the cleaning cost.

[0006] The present application provides a filtering device for a carbon molecular sieve nitrogen generator, comprising a housing, a gas inlet is provided on the top of the housing, an opening is provided on one side of the housing, a sealing cover is provided at the opening, a filter holder is provided on the inner side of the sealing cover and matched with the inner wall of the housing, a filter screen is provided on the filter holder, a cleaning assembly for cleaning the filter screen is rotatably provided on the filter holder, a driving assembly for driving the cleaning assembly to rotate is provided on the sealing cover, and a gas outlet is provided on the lower part of one side of the housing.

[0007] Further, the cleaning assembly comprises a mounting bracket, a cleaning brush and a cleaning rod, the mounting bracket is fixedly provided on the inner side of the sealing cover, the cleaning rod is rotatably provided on the mounting bracket, and the cleaning brush is fixedly provided on the lower end of the cleaning rod. The bristles of the cleaning brush abut against the top of the filter screen.

[0008] Furthermore, the drive assembly includes a drive motor, a transmission rod, a first bevel gear, and a second bevel gear. The drive motor is fixed to the outside of the sealing cover, the transmission rod is rotatably mounted on the sealing cover, one end of the transmission rod is connected to the output shaft of the drive motor, and the other end of the transmission rod extends into the housing. The first bevel gear is fixed to the end of the transmission rod away from the drive motor, and the second bevel gear is fixed to the upper end of the sweeping rod. The first bevel gear meshes with the second bevel gear.

[0009] Furthermore, a first sealing ring is provided at the connection between the transmission rod and the sealing cover, and a second sealing ring is provided between the sealing cover and the opening. The second sealing ring is fixed on the sealing cover, and a sealing strip is fixed on the periphery of the filter frame.

[0010] Furthermore, the sealing cover is symmetrically provided with locking components, which include locking bolts and pads. The pads are provided with a first through hole adapted to the locking bolts, and the sealing cover is provided with a second through hole adapted to the locking bolts. The housing is provided with a threaded hole adapted to the locking bolts at the opening. The end of the locking bolt passes through the first through hole of the pads and the second through hole of the sealing cover and is threadedly connected to the housing through the threaded hole.

[0011] Furthermore, a handle is fixed to the outside of the sealing cap.

[0012] Furthermore, the filter frame is detachably connected to the sealing cover, and a set of insertion posts are symmetrically fixed on the inner side of the sealing cover. The filter frame is provided with insertion holes that are adapted to the insertion posts, and the insertion posts are inserted into the insertion holes.

[0013] Furthermore, the openings are provided in multiple ways.

[0014] The beneficial effects of this utility model are:

[0015] This invention drives the cleaning component to rotate via a drive component, which can clean the filter screen while the equipment is running, preventing impurities from clogging the filter screen, maintaining good air permeability and filtration effect of the filter screen for a long time, reducing the frequency of removing the filter screen from the housing for cleaning, and reducing cleaning costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 These are schematic diagrams of structures in some embodiments of this application;

[0018] Figure 2 These are cross-sectional views of some embodiments of this application;

[0019] Figure 3 This is a schematic diagram showing the exploded structure in some embodiments of this application;

[0020] The reference numerals in the attached figures are as follows:

[0021] 1. Housing; 11. Air inlet; 12. Opening; 13. Air outlet; 2. Sealing cover; 21. Second through hole; 22. Handle; 24. Insertion post; 3. Filter frame; 31. Insertion hole; 4. Filter screen; 5. Cleaning assembly; 51. Mounting bracket; 52. Cleaning brush; 53. Cleaning rod; 6. Drive assembly; 61. Drive motor; 62. Transmission rod; 63. First bevel gear; 64. Second bevel gear; 7. First sealing ring; 8. Second sealing ring; 9. Sealing strip; 10. Locking assembly; 101. Locking bolt; 102. Pad; 1021. First through hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:

[0029] like Figure 1 and Figure 2As shown, this application provides a filtration device for a carbon molecular sieve nitrogen generator, including a housing 1. The top of the housing 1 has an air inlet 11, and one side of the housing 1 has an opening 12. A sealing cover 2 is provided at the opening 12. Inside the sealing cover 2, a filter frame 3 adapted to the inner wall of the housing 1 is provided. A filter screen 4 is provided on the filter frame 3. A cleaning component 5 for cleaning the filter screen 4 is rotatably mounted on the filter frame 3. A driving component 6 for driving the cleaning component 5 to rotate is provided on the sealing cover 2. An air outlet 13 is provided at the lower part of one side of the housing 1. In use, air containing impurities enters through the air inlet 11 at the top of the housing 1. Air enters the housing 1 through the air inlet 11. Under the action of airflow, the air passes through the filter screen 4 on the filter frame 3. Dust, impurities, etc. are intercepted on the surface of the filter screen 4, completing the filtration of the air. The filtered air is discharged from the air outlet 13 at the lower part of one side of the housing 1 and enters the subsequent process of the existing nitrogen generator. During the operation of the equipment, the drive component 6 drives the cleaning component 5 to rotate and clean the filter screen 4, preventing impurities from clogging the filter screen 4, so that the filter screen 4 maintains good air permeability and filtration effect for a long time, reducing the frequency of removing the filter screen 4 from the housing 1 for cleaning, and reducing cleaning costs.

[0030] like Figure 2 and Figure 3 As shown, the cleaning assembly 5 includes a mounting bracket 51, a cleaning brush 52, and a cleaning rod 53. The mounting bracket 51 is fixed inside the sealing cover 2. The cleaning rod 53 is rotatably mounted on the mounting bracket 51. The cleaning brush 52 is fixed at the lower end of the cleaning rod 53. The bristles of the cleaning brush 52 abut against the top of the filter screen 4. Driven by the drive assembly 6, the cleaning rod 53 rotates, which drives the cleaning brush 52 to rotate. The cleaning brush 52 cleans the top of the filter screen 4 to prevent the filter screen 4 from clogging and maintain the filtering effect of the filter screen 4.

[0031] like Figure 2 and Figure 3 As shown, the drive assembly 6 includes a drive motor 61, a transmission rod 62, a first bevel gear 63, and a second bevel gear 64. The drive motor 61 is fixed to the outside of the sealing cover 2. The transmission rod 62 is rotatably mounted on the sealing cover 2. One end of the transmission rod 62 is connected to the output shaft of the drive motor 61, and the other end of the transmission rod 62 extends into the housing 1. The first bevel gear 63 is fixed to the end of the transmission rod 62 away from the drive motor 61, and the second bevel gear 64 is fixed to the upper end of the sweeping rod 53. The first bevel gear 63 and the second bevel gear 64 mesh. The drive motor 61 drives the transmission rod 62 to rotate, and the transmission rod 62 drives the first bevel gear 63 to rotate. Through the transmission action of gear meshing, when the first bevel gear 63 rotates, it will drive the second bevel gear 64 to rotate, thereby causing the sweeping rod 53 to rotate, and finally realizing the sweeping action of the sweeping brush 52 on the filter screen 4.

[0032] like Figure 2 and Figure 3As shown, a first sealing ring 7 is provided at the connection between the transmission rod 62 and the sealing cover 2, and a second sealing ring 8 is provided at the connection between the sealing cover 2 and the opening 12. The second sealing ring 8 is fixed on the sealing cover 2, and a sealing strip 9 is fixed on the periphery of the filter frame 3. The arrangement of the first sealing ring 7 and the second sealing ring 8 ensures the sealing performance of the filter device. The sealing strip 9 on the periphery of the filter frame 3 enhances the sealing performance between the filter frame 3 and the inner wall of the housing 1, preventing dust from bypassing the filter screen 4 through the gap between the filter frame 3 and the housing 1 and entering below the filter screen 4. This ensures that air can only be filtered through the filter screen 4, thereby improving the filtration efficiency and quality.

[0033] like Figure 1 and Figure 3 As shown, locking components 10 are symmetrically arranged on the sealing cover 2. The locking components 10 include locking bolts 101 and pads 102. The pads 102 are provided with a first through hole 1021 that matches the locking bolts 101. The sealing cover 2 is provided with a second through hole 21 that matches the locking bolts 101. The housing 1 is provided with a threaded hole at the opening 12 that matches the locking bolts 101. The end of the locking bolts 101 passes through the first through hole 1021 of the pads 102 and the second through hole 21 of the sealing cover 2 and is threadedly connected to the housing 1 through the threaded hole. During installation, the locking bolts 101 are aligned with the corresponding holes and tightened. During disassembly, the locking bolts 101 are loosened so that the sealing cover 2 can be easily removed from the housing 1, making it easy to remove the filter frame 3, filter screen 4, and cleaning components 5 from the inside of the housing 1 for cleaning or maintenance.

[0034] like Figures 1-3 As shown, a handle 22 is fixed on the outside of the sealing cover 2. The handle 22 provides an easy part for the operator to hold and apply force, making it more convenient to install and remove the sealing cover 2.

[0035] like Figure 3 As shown, the filter frame 3 and the sealing cover 2 are detachably connected. A set of insertion posts 24 are symmetrically fixed on the inner side of the sealing cover 2. The filter frame 3 is provided with insertion holes 31 that are compatible with the insertion posts 24. The insertion posts 24 are inserted into the insertion holes 31, which makes it easy to assemble and disassemble the filter frame 3 and the sealing cover 2. After long-term use, impurities accumulate on the top of the filter screen 4. When it is necessary to clean and maintain the filter screen 4, loosen the locking bolt 101, remove the sealing cover 2 from the housing 1, and at the same time remove the filter frame 3 from the inside of the housing 1. Then remove the filter frame 3 from the sealing cover 2 to facilitate cleaning of the filter screen 4 on the filter frame 3.

[0036] like Figures 1-3 As shown, there are multiple openings 12, and correspondingly, there are also multiple sealing covers 2, filter frames 3, filter screens 4, and drive components 6. Each opening 12 is equipped with a corresponding component to achieve multi-layer filtration of the air entering the housing 1, thereby further improving the filtration effect of the air.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A filtration device for a carbon molecular sieve nitrogen generator, characterized in that: The device includes a housing, an air inlet at the top of the housing, an opening on one side of the housing, a sealing cover at the opening, a filter frame adapted to the inner wall of the housing on the inner side of the sealing cover, a filter screen on the filter frame, a cleaning component rotatably mounted on the filter frame for cleaning the filter screen, a drive component on the sealing cover for driving the cleaning component to rotate, and an air outlet at the lower part of one side of the housing.

2. The filtration device for a carbon molecular sieve nitrogen generator according to claim 1, characterized in that: The cleaning assembly includes a mounting bracket, a cleaning brush, and a cleaning rod. The mounting bracket is fixed to the inside of the sealing cover, the cleaning rod is rotatably mounted on the mounting bracket, the cleaning brush is fixed to the lower end of the cleaning rod, and the bristles of the cleaning brush abut against the top of the filter screen.

3. The filtration device for a carbon molecular sieve nitrogen generator according to claim 2, characterized in that: The drive assembly includes a drive motor, a transmission rod, a first bevel gear, and a second bevel gear. The drive motor is fixed to the outside of the sealing cover. The transmission rod is rotatably mounted on the sealing cover. One end of the transmission rod is connected to the output shaft of the drive motor, and the other end of the transmission rod extends into the housing. The first bevel gear is fixed to the end of the transmission rod away from the drive motor, and the second bevel gear is fixed to the upper end of the sweeping rod. The first bevel gear meshes with the second bevel gear.

4. The filtration device for a carbon molecular sieve nitrogen generator according to claim 3, characterized in that: A first sealing ring is provided at the connection between the transmission rod and the sealing cover, and a second sealing ring is provided between the sealing cover and the opening. The second sealing ring is fixed on the sealing cover, and a sealing strip is fixed on the periphery of the filter frame.

5. The filtration device for a carbon molecular sieve nitrogen generator according to claim 1, characterized in that: The sealing cover is symmetrically provided with locking components, each including a locking bolt and a pad. The pad has a first through hole adapted to the locking bolt, and the sealing cover has a second through hole adapted to the locking bolt. The housing has a threaded hole adapted to the locking bolt at the opening. The end of the locking bolt passes through the first through hole of the pad and the second through hole of the sealing cover and is threadedly connected to the housing through the threaded hole.

6. The filtration device for a carbon molecular sieve nitrogen generator according to claim 1, characterized in that: A handle is fixed to the outside of the sealing cap.

7. The filtration device for a carbon molecular sieve nitrogen generator according to claim 1, characterized in that: The filter frame is detachably connected to the sealing cover. A set of plug-in posts are symmetrically fixed on the inner side of the sealing cover. The filter frame is provided with plug-in holes that are adapted to the plug-in posts, and the plug-in posts are inserted into the plug-in holes.

8. The filtration device for a carbon molecular sieve nitrogen generator according to claim 4, characterized in that: The opening is provided in multiple ways.

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