Continuous dust removal device for gathering and transporting extracted gas in coal mine

Abstract

The invention belongs to the technical field of coal mine extracted gas dust removal, and discloses a continuous dust removal device for coal mine extracted gas gathering and transportation, which comprises a box body, a plurality of groups of air inlet grooves are equidistantly mounted on the outer peripheral surface of the box body, the tops of the air inlet grooves are fixedly connected with air inlet pipes, and the air inlet pipes are used for introducing high-pressure air; and a roller is rotationally mounted in the middle of the box body. According to the device, the sealing strip is propped against the inner wall of the filter cartridge, so that sealing is formed; the inner cavity of the filter cartridge is divided into a filter area facing one side of the air inlet groove (gas filtered by the filter cartridge can directly upwards enter the sealing cover and is discharged from the sealing cover) and a cleaning area facing one side of the roller (the cleaning area is externally connected with high-pressure air flow through the isolation plate and a communicating pipe II to reversely blow the inner wall of the filter cartridge through the isolation plate and the communicating pipe II; the impurities are vertical to the space formed between the four groups of filter cartridges and the four groups of sealing cartridges), and the coal dust impurities which are reversely blown by the high-pressure airflow in the cleaning area are discharged along the discharge chute, so that the synchronous operation of filtering and cleaning is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine gas drainage purification, and particularly relates to a continuous dust removal device for coal mine gas drainage and gathering and transportation. Background Art

[0002] Coal mine gas is a gas that may cause coal mine disasters and is also a combustible resource. During the coal mine mining process, when coal mine gas is extracted through pipelines, due to the large negative pressure, a large amount of impurities such as coal powder and water vapor exist in the extracted gas. Therefore, it is very necessary to remove dust before the coal mine gas drainage and gathering and transportation. In the prior art, the extracted gas needs to be filtered (to remove solid particle impurities such as dust), dehydrated (to remove the contained water), and harmful gases (SO2, H2S) and odors are adsorbed by activated carbon. In the filtering stage, the filtered coal dust and other particulate impurities will adhere to the outer working surface of the filter screen (referring to the side of the filter screen facing the object to be filtered). After a long time, the filter screen will be blocked, reducing the filtering efficiency. At the same time, due to the continuous output of the extracted gas, stopping the machine to replace the filter screen will greatly affect the dust treatment capacity during the extraction of gas. In order to achieve continuous dust removal of coal mine gas drainage and avoid the stagnation of the filtering work caused by replacing the filter screen, a structure for synchronously cleaning the filter screen is designed in the prior art: scraping or backwashing is adopted. However, scraping is likely to cause damage to the filter screen and has a poor cleaning effect. For the scraped impurities, additional pushing is required to discharge the coal dust impurities. While backwashing affects the gas path during the entire filtering stage. Since the gas path during backwashing cleaning is completely opposite to the filtering gas path, the inhalation of gas also needs to be paused, which undoubtedly does not conform to the principle of continuity during the filtering process of coal mine gas drainage. Therefore, it is urgent to solve. Summary of the Invention

[0003] The purpose of the invention is to provide a continuous dust removal device for coal mine gas drainage and gathering and transportation to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the invention provides the following technical solution: A continuous dust removal device for coal mine gas drainage and gathering and transportation, including a box body. A motor is installed on the top of the box body. The output shaft of the motor is connected to a roller. Filter drums are rotatably installed on the front, rear, left, and right sides of the inner cavity of the box body. A second gear is fixedly installed on the top of the outer surface of the filter drum. A first gear is fixedly installed at the top of the roller. Four groups of rotating shafts and sealing cylinders are rotatably installed in the inner cavity of the box body and are circumferentially and equally spaced.

[0005] Each of the sealing cylinders abuts against the outer surfaces of two adjacent filter cylinders. A discharge groove is formed at the bottom of the box body. A fixing column is fixedly connected to the top of the box body. A transfer cylinder is fixedly connected to the top of the fixing column. A fan is fixedly connected to the top of the transfer cylinder. Four first communication pipes and sealing covers are fixedly connected to the outer surface of the transfer cylinder. A second communication pipe is fixedly connected to the top of the sealing cover. A partition plate is fixedly connected to the bottom of the second communication pipe. Placement grooves are formed on both sides of the partition plate. A sealing strip is rotatably installed inside the placement groove.

[0006] As a preferred embodiment of the present invention, the sealing cylinder is fixedly sleeved on the outer surface of the rotating shaft. The sealing cylinder is made of rubber blocks and deforms when abutting against the outer surface of the filter cylinder. The first gear meshes with the second gear. The top end of the filter cylinder is hermetically sleeved on the bottom of the sealing cover. The sealing strip abuts against the inner wall of the filter cylinder. A plurality of air inlet grooves are equidistantly installed on the outer peripheral surface of the box body. An air inlet pipe is fixedly connected to the top of the air inlet groove.

[0007] As a preferred embodiment of the present invention, a through hole penetrating downward is formed at the top of the partition plate. The part of the partition plate located inside the filter cylinder divides the inner cavity of the filter cylinder into a mutually sealed and isolated filtering area and a cleaning area. The volume of the filtering area is larger than that of the cleaning area. The through hole communicates with the cleaning area.

[0008] As a preferred embodiment of the present invention, the upper part of the partition plate is rotationally adapted to the upper side of the inner wall of the filter cylinder, and the upper and lower sides of the lower part of the partition plate are respectively in sealing contact with the upper and lower sides of the inner wall of the filter cylinder.

[0009] As a preferred embodiment of the present invention, four dust-proof plates are fixedly connected to the top of the inner wall of the box body and are circumferentially and equidistantly distributed. Each two adjacent filter cylinders are symmetric with each other with one dust-proof plate as a reference.

[0010] As a preferred embodiment of the present invention, the top view cross-sectional shape of the placement groove is "U"-shaped. The sealing strip is made of rubber blocks and abuts against the inner wall of the filter cylinder.

[0011] As a preferred embodiment of the present invention, the top view cross-sectional shape of the partition plate is "person"-shaped, and the included angle between the two sides of the partition plate is 145°.

[0012] As a preferred embodiment of the present invention, when the motor drives the roller, the first gear, the filter cylinder and the second gear to rotate, the sealing cylinder and the rotating shaft rotate synchronously through the frictional force on the outer surface of the filter cylinder.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. This device has been redesigned to achieve the function of synchronous cleaning during filtration, enabling the device to perform continuous filtration operations. First, four filter cylinders are rotatably installed in the inner cavity of the box body, with their outer surfaces serving as the filtration working surfaces. Four sealing cylinders made of rubber blocks are arranged between the four filter cylinders. When the sealing cylinders come into contact with the filter cylinders, they deform and form a seal. By providing a partition plate on the inner wall of the filter cylinder, a sealing strip is rotatably installed on the side of the bottom facing the inner wall of the filter cylinder. The sealing strip comes into contact with the inner wall of the filter cylinder and forms a seal. In this way, the inner cavity of the filter cylinder is divided by the partition plate and the sealing strip into a filtration area facing the air inlet groove (the gas filtered by the filter cylinder can directly enter the sealing cover and be discharged upward from here) and a cleaning area facing the roller (the cleaning area is externally connected to high-pressure air through the partition plate and the second connecting pipe to blow the inner wall of the filter cylinder, and the dust and impurities are discharged along the discharge groove through the space formed between the four filter cylinders and the four sealing cylinders), realizing the synchronous progress of filtration and cleaning work.

[0015] 2. Then, by providing a roller in the middle of the box body, driven by a motor and transmitted through the first gear and the second gear, the filter cylinder can rotate driven by the motor. At this time, the positions of the filtration area and the cleaning area in the inner cavity of the filter cylinder remain unchanged, and are sealed and isolated by rolling by the partition plate and the sealing strip. The side of the outer surface of the filter cylinder facing the air inlet groove rotates to a position of 180° during rotation and faces the front of the roller. At this time, the high-pressure air flow in the cleaning area can be horizontally directed towards the axis of the roller and clean the outer surface of the filter cylinder. At this time, the side of the filter cylinder facing the air inlet groove can always maintain a brand-new and optimal filtration state, thus greatly improving the filtration efficiency of the device.

[0016] 3. The designed sealing cylinders and sealing strips of this device can provide long-term and effective rolling sealing functions. By providing a sealing strip in the placement groove, it makes rolling contact with the inner wall of the filter cylinder, and the sealing strip rotates in a squeezed state. Therefore, the area of contact with the inner wall of the filter cylinder will increase. At the same time, the "U" - shaped design of the placement groove enables the sealing strip to automatically enter the filter holes of the filter cylinder when facing them, forming an effective seal. The sealing cylinder provides rotational sealing on the outside of the filter cylinder through rotation and extrusion deformation. The advantage of rotational sealing is that the parts in contact and under force are not in one place, but form periodic sealing through rotation, avoiding the singularity of the force point, greatly reducing the aging degree of the sealing strip and the sealing cylinder, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front three - dimensional external view schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is the front sectional view schematic diagram of the overall structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 is an enlarged schematic view of the structure at position A in the present invention;

[0020] Figure 4 is a schematic axial cross-sectional view of the box body of the present invention;

[0021] Figure 5 is a schematic top sectional view of the box body of the present invention;

[0022] Figure 6 For the present invention Figure 5 is an enlarged schematic view of the structure at position B in the present invention;

[0023] Figure 7 is a separation schematic view of the drum, gear one, filter cylinder, gear two, fixed column and transfer cylinder of the present invention;

[0024] Figure 8 is a separation schematic view of the filter cylinder, gear two, connecting pipe two, partition board and sealing strip of the present invention.

[0025] In the figure: 1. Box body; 2. Air inlet groove; 3. Air inlet pipe; 4. Motor; 5. Drum; 6. Gear one; 7. Filter cylinder; 8. Gear two; 9. Fixed column; 10. Transfer cylinder; 11. Fan; 12. Connecting pipe one; 13. Sealing cover; 14. Connecting pipe two; 15. Partition board; 16. Through hole; 17. Placing groove; 18. Sealing strip; 19. Rotating shaft; 20. Sealing cylinder; 21. Discharge chute; 22. Dust baffle. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Such as Figures 1 to 8As shown in the figure, an embodiment of the present invention provides a continuous dust removal device for coal mine gas drainage and gathering, including a box body 1. A plurality of groups of air inlet grooves 2 are equidistantly installed on the outer peripheral surface of the box body 1. An air inlet pipe 3 is fixedly connected to the top of the air inlet groove 2. The air inlet pipe 3 is used to connect high-pressure air. A roller 5 is rotatably installed in the middle of the box body 1. A motor 4 is installed at the bottom of the box body 1. The motor 4 is in transmission connection with the roller 5. Filter cylinders 7 are rotatably installed on the front, rear, left and right sides of the inner cavity of the box body 1. A second gear 8 is fixedly installed at the top of the outer surface of the filter cylinder 7. A first gear 6 is fixedly installed at the top of the roller 5. The first gear 6 is meshed with the second gear 8. Four groups of rotating shafts 19 and sealing cylinders 20 that are circumferentially equidistantly distributed are rotatably installed in the inner cavity of the box body 1. Each group of sealing cylinders 20 abuts against the outer surfaces of two adjacent filter cylinders 7. A discharge groove 21 is opened at the bottom of the box body 1. A fixed column 9 is fixedly connected to the top of the box body 1. A transfer cylinder 10 is fixedly connected to the top of the fixed column 9. A fan 11 is fixedly connected to the top of the transfer cylinder 10. Four groups of first connecting pipes 12 and sealing covers 13 are fixedly connected to the outer surface of the transfer cylinder 10. The top of the filter cylinder 7 is hermetically sleeved at the bottom of the sealing cover 13. A second connecting pipe 14 is fixedly connected to the top of the sealing cover 13. A partition plate 15 is fixedly connected to the bottom of the second connecting pipe 14. Placement grooves 17 are opened on both sides of the partition plate 15. A sealing strip 18 is rotatably installed inside the placement groove 17. The sealing strip 18 abuts against the inner wall of the filter cylinder 7;

[0028] After being redesigned, this device realizes the function of synchronous cleaning during filtration, enabling the device to perform continuous filtration operations. First, four filter cylinders 7 are rotatably installed in the inner cavity of the box body 1, and their outer surfaces are used as the filtration working surfaces. Four sealing cylinders 20 made of rubber blocks are arranged between the four filter cylinders 7. When the sealing cylinders 20 abut against the filter cylinders 7, they deform and form a seal. By providing a partition plate 15 on the inner wall of the filter cylinder 7, a sealing strip 18 is rotatably installed on the side of the bottom facing the inner wall of the filter cylinder 7. The sealing strip 18 abuts against the inner wall of the filter cylinder 7 and forms a seal. In this way, the inner cavity of the filter cylinder 7 is divided by the partition plate 15 and the sealing strip 18 into a filtration area facing the air inlet groove 2 (the gas filtered by the filter cylinder 7 can directly enter the sealing cover 13 and be discharged upward from here) and a cleaning area facing the roller 5 (the cleaning area is externally connected to high-pressure air through the partition plate 15 and the second connecting pipe 14 to blow the inner wall of the filter cylinder 7, and the dust impurities are discharged along the space formed between the four filter cylinders 7 and the four sealing cylinders 20). The dust impurities blown by the high-pressure air in the cleaning area are discharged along the discharge groove 21, realizing the synchronous progress of filtration and cleaning work.

[0029] Then, by setting a drum 5 in the middle of the box body 1, driven by a motor 4, through the transmission of a first gear 6 and a second gear 8, the filter cartridge 7 can rotate driven by the motor 4. At this time, the positions of the filtering area and the cleaning area in the inner cavity of the filter cartridge 7 remain unchanged, and are hermetically isolated by a partition plate 15 and a sealing strip 18 for rolling. The side of the outer surface of the filter cartridge 7 facing the air inlet groove 2 moves to a position of 180° under rotation and faces the front of the drum 5. At this time, the high-pressure air flow in the cleaning area can be horizontally directed towards the axis of the drum 5, and the outer surface of the filter cartridge 7 is cleaned. At this time, the side of the filter cartridge 7 facing the air inlet groove 2 can always maintain a brand-new and optimal filtering state, thereby greatly improving the filtering efficiency of the device.

[0030] The designed sealing cylinder 20 and sealing strip 18 of this device can provide a long-term and effective rolling sealing function. By setting a sealing strip 18 in the placement groove 17, it makes a rolling contact with the inner wall of the filter cartridge 7, and the sealing strip 18 rotates in a compressed state. Therefore, the contact area with the inner wall of the filter cartridge 7 will increase. At the same time, the "U" - shaped design of the placement groove 17 enables the sealing strip 18 to automatically enter the filter holes of the filter cartridge 7 when facing them, forming an effective seal. The sealing cylinder 20 provides rotational sealing on the outside of the filter cartridge 7 through rotation and extrusion deformation. The advantage of rotational sealing is that the parts in contact and under force are not in one place, but form a cycle through rotation, greatly reducing the aging degree of the sealing strip 18 and the sealing cylinder 20 and extending the service life of the device.

[0031] Among them, the sealing cylinder 20 is fixedly sleeved on the outer surface of the rotating shaft 19. The sealing cylinder 20 is made of a rubber block and abuts against the outer surface of the filter cartridge 7 to generate deformation;

[0032] The sealing cylinder 20 is responsible for isolating between the air inlet groove 2 and the discharge chute 21. The discharge chute 21 should be unidirectionally communicated with the cleaning area inside the filter cartridge 7. Only such a design can make the dust and impurities discharged through the cleaning area flow downward along the discharge chute 21 to realize the discharging function. When the sealing cylinder 20 generates deformation, it will surely increase the contact area with the outer surface of the filter cartridge 7, so that the contact part between the filter cartridge 7 and the sealing cylinder 20 forms an effective seal.

[0033] Among them, a through - hole 16 penetrating downward is opened at the top of the partition plate 15. The part of the partition plate 15 located inside the filter cartridge 7 divides the inner cavity of the filter cartridge 7 into a filtering area and a cleaning area that are hermetically isolated from each other. The volume of the filtering area is larger than that of the cleaning area, and the through - hole 16 is communicated with the cleaning area;

[0034] The partition plate 15 cooperates with the sealing strip 18 to form a fixed filtering area and a cleaning area in the inner cavity of the rotating filter cylinder 7. The filtering area directly receives the filtered gas and guides it upward into the sealing cover 13, while the cleaning area is communicated with the second connecting pipe 14 through the partition plate 15 and is completely sealed and isolated from the filtering area, which is achieved by the rolling abutment of the sealing strip 18 against the inner wall of the filter cylinder 7.

[0035] Among them, the upper part of the partition plate 15 is rotationally adapted to the upper side of the inner wall of the filter cylinder 7, and the upper and lower sides of the lower part of the partition plate 15 are respectively in sealing abutment with the upper and lower sides of the inner wall of the filter cylinder 7;

[0036] The part of the partition plate 15 located on the upper side of the inner wall of the filter cylinder 7 is provided with a through hole 16, and the through hole 16 is used to communicate the cleaning area in the inner cavity of the filter cylinder 7 and the second connecting pipe 14. The lower part of the partition plate 15 is completely located in the inner cavity of the filter cylinder 7, and its upper and lower sides are in abutment with the inner wall of the filter cylinder 7 to form a seal.

[0037] Among them, four groups of dust-proof plates 22 are fixedly connected to the top of the inner wall of the box body 1 and are circumferentially equidistantly distributed. Each adjacent two groups of filter cylinders 7 are symmetric to each other with a group of dust-proof plates 22 as the reference;

[0038] As Figure 5 shown, if the outer surfaces of two adjacent filter cylinders 7 facing the dust-proof plate 22 are directly opposite, the dust and gas generated therefrom will cancel each other out, and even enter the opposite side, thus affecting the cleaning efficiency of the filter cylinder 7.

[0039] Among them, the top view cross-sectional shape of the placement groove 17 is "U" - shaped. The sealing strip 18 is made of a rubber block and abuts against the inner wall of the filter cylinder 7;

[0040] The sealing strip 18 inside the "U" - shaped distributed placement groove 17 will block the filter holes in time when it is aligned with the filter holes of the filter cylinder 7, so as to form an effective seal.

[0041] Among them, the top view cross-sectional shape of the partition plate 15 is "human" - shaped, and the included angle between the two sides of the partition plate 15 is 145°;

[0042] The "human" - shaped distributed partition plate 15 divides the inner cavity of the filter cylinder 7 into a mutually isolated filtering area and a cleaning area in cooperation with the sealing strip 18.

[0043] Among them, when the motor 4 drives the roller 5, the first gear 6, the filter cylinder 7 and the second gear 8 to rotate, the sealing cylinder 20 and the rotating shaft 19 rotate synchronously under the action of the frictional force with the outer surface of the filter cylinder 7;

[0044] The sealing cylinder 20 and the sealing strip 18 form a low - wear seal under rolling friction through synchronous rotation and abutment with the filter cylinder 7, which can effectively extend the service life of the device.

[0045] Working principle:

[0046] First, the device can filter impurities such as dust from the inhaled coal mine gas. Start the fan 11 and draw air outward to create a negative pressure inside the device. Connect the external coal mine gas access end to the air inlet pipe 3. Under the action of the negative pressure, the gas enters the inner cavity of the box body 1 along the air inlet pipe 3 and the air inlet groove 2. As shown in Figure 5 the figure, the gas from the air inlet groove 2 moves along the radial line of the box body 1 towards the axis direction of the box body 1 and passes through the outer side surface of the filter cylinder 7, thereby filtering out impurities such as dust in the gas. The filtered gas enters the filter area in the filter cylinder 7 and moves upward to the sealing cover 13, the first connecting pipe 12, and the transfer cylinder 10, and finally is discharged to the next process through the air outlet end of the fan 11;

[0047] Then, there are coal dust and other impurities attached to the surface of the part of the outer surface of the filter cylinder 7 that has undergone filtration treatment. At this time, start the cleaning mode: start the motor 4 and drive the roller 5, the first gear 6, the second gear 8, and the filter cylinder 7 to rotate simultaneously. In the inner cavity of the box body 1, the sealing cylinder 20 and the rotating shaft 19 are driven by the rotation of the filter cylinder 7 to rotate synchronously, always maintaining the seal at the contact with the filter cylinder 7 (note: when the sealing cylinder 20 contacts the filter cylinder 7, it will deform, and the deformation area can cover a large part of the outer surface of the filter cylinder 7). The side of the outer surface of the filter cylinder 7 with attached impurities rotates to face the side of the outer surface of the roller 5. At the same time, inside the filter cylinder 7, the sealing strip 18 contacts the inner wall of the filter cylinder 7, also forming a seal. At this time, the second connecting pipe 14 is connected to high-pressure gas and enters the cleaning area through the second connecting pipe 14 and the partition plate 15. At this time, the impurities attached to the outer surface of the filter cylinder 7 are blown by the high-pressure air flow towards the surfaces of the roller 5 and the dust baffle 22, and finally are discharged downward along the discharge chute 21;

[0048] Finally, control the rotation speed of the motor 4 to slow down the rotation speed of the filter cylinder 7, so that the filter cylinder 7 rotates while being cleaned, ensuring the sustainability of gas filtration.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous dust removal device for the collection and transportation of coal mine drainage gas, comprising a box body (1), characterized in that: A motor (4) is installed on the top of the box body (1). The output shaft of the motor (4) is connected to a drum (5). Filter drums (7) are rotatably installed on the front, rear, left, and right sides of the inner cavity of the box body (1). A second gear (8) is fixedly installed on the top of the outer surface of the filter drum (7). A first gear (6) is fixedly installed at the top of the drum (5). Four groups of rotating shafts (19) and sealing cylinders (20) that are circumferentially equidistantly distributed are rotatably installed in the inner cavity of the box body (1). Each sealing cylinder (20) is in contact with the outer surfaces of two adjacent filter drums (7). A discharge groove (21) is formed at the bottom of the box body (1). A fixed column (9) is fixedly connected to the top of the box body (1). A transfer cylinder (10) is fixedly connected to the top of the fixed column (9). A fan (11) is fixedly connected to the top of the transfer cylinder (10). Four groups of first connecting pipes (12) and a sealing cover (13) are fixedly connected to the outer surface of the transfer cylinder (10). A second connecting pipe (14) is fixedly connected to the top of the sealing cover (13). An isolation plate (15) is fixedly connected to the bottom of the second connecting pipe (14). Placement grooves (17) are formed on both sides of the isolation plate (15). A sealing strip (18) is rotatably installed inside the placement groove (17).

2. The continuous dust removal device for the gas gathering and transportation in coal mines according to claim 1, characterized in that: The sealing cylinder (20) is fixedly sleeved on the outer surface of the rotating shaft (19). The sealing cylinder (20) is made of a rubber block and deforms when in contact with the outer surface of the filter drum (7). The first gear (6) meshes with the second gear (8). The top of the filter drum (7) is sealingly sleeved on the bottom of the sealing cover (13). The sealing strip (18) is in contact with the inner wall of the filter drum (7). Multiple air inlet grooves (2) are equidistantly installed on the outer peripheral surface of the box body (1). An air inlet pipe (3) is fixedly connected to the top of the air inlet groove (2).

3. The continuous dust removal device for coal mine gas drainage and gathering according to claim 2, characterized in that: A through hole (16) that penetrates downward is formed at the top of the isolation plate (15). The part of the isolation plate (15) located inside the filter drum (7) divides the inner cavity of the filter drum (7) into a mutually sealed and isolated filtering area and a cleaning area. The volume of the filtering area is larger than that of the cleaning area. The through hole (16) communicates with the cleaning area.

4. The continuous dust removal device for coal mine gas drainage and gathering according to claim 3, characterized in that: The upper part of the isolation plate (15) is rotatably adapted to the upper side of the inner wall of the filter drum (7). The upper and lower sides of the lower part of the isolation plate (15) are respectively in sealing contact with the upper and lower sides of the inner wall of the filter drum (7).

5. The continuous dust removal device for collecting and transporting coal mine drainage gas according to claim 4, characterized in that: Four groups of dust-proof plates (22) that are circumferentially equidistantly distributed are fixedly connected to the top of the inner wall of the box body (1). Each two adjacent filter drums (7) are symmetric with each other with a group of dust-proof plates (22) as a reference.

6. The continuous dust removal device for coal mine gas drainage and gathering according to claim 5, characterized in that: The top view cross-sectional shape of the placement groove (17) is "U" shaped. The sealing strip (18) is made of a rubber block and is in contact with the inner wall of the filter drum (7).

7. The continuous dust removal device for coal mine gas drainage and gathering according to claim 6, characterized in that: The top view cross-sectional shape of the isolation plate (15) is "human" shaped. The included angle between the two sides of the isolation plate (15) is 145°.

8. The continuous dust removal device for coal mine gas drainage and gathering according to claim 7, characterized in that: When the motor (4) drives the drum (5), the first gear (6), the filter cartridge (7) and the second gear (8) to rotate, the sealing cylinder (20) and the rotating shaft (19) rotate synchronously by the frictional force acting on the outer surface of the filter cartridge (7).

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