Flue gas dust removal equipment for rotary kiln

Abstract

The invention relates to the technical field of flue gas dust removal, and discloses flue gas dust removal equipment for a rotary kiln, a dust removal inner core is movably sleeved with a dust removal core replacement assembly, a first plugging cover is fixedly sleeved with the left side of the dust removal core replacement assembly, and a second plugging cover is fixedly sleeved with the right side of the dust removal core replacement assembly; and flue gas pipelines are fixedly connected to the sides, away from the surface of the dust removal core replacement assembly, of the first plugging cover and the second plugging cover correspondingly, and a second motor is fixedly connected to one side of the gear shell, and by arranging the dust removal core replacement assembly, the dust removal inner core, the second motor and the dust removal inner pipeline, when the flue gas dust removal equipment needs to be cleaned, the dust removal core replacement assembly can be cleaned conveniently. And a second motor drives a dust removal inner core in the dust removal core replacement assembly to rotate, so that a dust removal inner pipeline in the dust removal inner core is driven to rotate, the different dust removal inner pipelines are in butt joint with a flue gas pipeline, and normal emission of flue gas is prevented from being affected in the equipment cleaning process.

Description

Technical Field

[0001] This invention relates to the field of flue gas dust removal technology, and more specifically to a flue gas dust removal device for a rotary kiln. Background Technology

[0002] A rotary kiln is a type of rotating calcining kiln, commonly known as a rotary kiln. It belongs to the category of building materials equipment and is widely used in various production industries such as building materials, metallurgy, chemicals, and environmental protection. It is mainly used for mechanical, physical, or chemical processing of solid materials. The main components of a rotary kiln include the cylinder, support device, transmission device, kiln head, and kiln tail. When using a rotary kiln, it is necessary to remove dust from the generated flue gas to prevent the flue gas from being directly emitted and polluting the environment. In the existing technology, the flue gas dust removal equipment used in rotary kilns, especially when cleaning the equipment, generally requires shutting off the normal emission of flue gas and manually cleaning and maintaining the equipment. This not only involves cumbersome operation steps and affects the normal exhaust of the rotary kiln, but also results in high labor intensity and slow cleaning speed. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a flue gas dust removal device for rotary kilns to solve the problems existing in the background art.

[0004] This invention provides the following technical solution: a flue gas dust removal device for a rotary kiln, comprising a dust removal core replacement assembly, wherein a dust removal inner core is movably sleeved inside the dust removal core replacement assembly, a first sealing cover is fixedly sleeved on the left side of the dust removal core replacement assembly, and a second sealing cover is fixedly sleeved on the right side of the dust removal core replacement assembly. Flue gas pipelines are fixedly connected to the side of both the first and second sealing covers away from the surface of the dust removal core replacement assembly. An outer sleeve is fixedly connected to the side of the first sealing cover away from the surface of the dust removal core replacement assembly and located at the top of the flue gas pipeline. A first motor is fixedly connected to one side of the top of the outer sleeve, and a gear housing is fixedly connected to one side of the surface of the dust removal inner core. By providing a dust removal core replacement assembly, a dust removal inner core, a second motor, and a dust removal inner pipeline, it is beneficial that when the flue gas dust removal equipment needs to be cleaned, the second motor drives the dust removal inner core inside the dust removal core replacement assembly to rotate, thereby causing the dust removal inner pipeline inside the dust removal inner core to be driven to rotate, so that different dust removal inner pipelines can be connected with the flue gas pipeline, thereby avoiding affecting the normal emission of flue gas during the equipment cleaning process; Furthermore, a second motor is fixedly connected to one side of the gear housing, and a cleaning sleeve is fixedly connected to the side of the second sealing cover away from the dust removal and core replacement assembly and located at the top of the flue gas pipeline. A third motor is fixedly connected to the top of the cleaning sleeve, and a cleaning component is movably sleeved inside the cleaning sleeve. Through the cleaning sleeve and the cleaning component, it is beneficial for the cleaning component to clean the equipment, reducing the number of manual cleaning steps and reducing the labor intensity of manual workers.

[0005] Furthermore, a circular through hole is provided at the position where the first sealing cover is fixedly connected to the outer sleeve. The first sealing cover and the second sealing cover have the same overall shape and structure. The first sealing cover and the second sealing cover help to seal the dust collector core, thereby avoiding leakage during flue gas emission and causing environmental pollution. At the same time, they block dust and other impurities in the air and prevent them from entering the interior of the dust collector core.

[0006] Furthermore, a connecting plate is provided on the side of the outer sleeve near the first sealing cover, and a circular outer shell is fixedly connected to the top side of the outer sleeve. A first gear is movably connected inside the circular outer shell, and the first gear is driven to the side of the first motor. A telescopic rod is movably sleeved inside the outer sleeve. Through the outer sleeve and the telescopic rod, it is convenient to quickly clean the inside of the equipment when cleaning is required by pushing the telescopic rod. The operation is simple and convenient, and the intensity of manual labor is reduced.

[0007] Furthermore, a rack is provided at the top of the telescopic rod, and the rack meshes with the first gear. A cleaning scraper is fixedly connected to the telescopic rod near the first sealing cover, and a connecting rod is fixedly connected to the cleaning scraper away from the telescopic rod. The meshing of the rack and the first gear facilitates the movement of the rack by the rotation of the first gear, thereby causing the telescopic rod to extend and retract.

[0008] Furthermore, a drain pipe is provided on one side of the bottom of the cleaning sleeve, and a connecting block is fixedly connected to one side of the top of the dust removal and core replacement assembly. A threaded rod is movably sleeved inside the connecting block, and the threaded rod is driven to one side of the third motor. By providing a cleaning sleeve, it is beneficial to block the wastewater generated during cleaning and avoid wastewater splashing and polluting the surrounding environment.

[0009] Furthermore, the cleaning component includes a circular disc. A water pump is fixedly connected to the side of the circular disc away from the second sealing cover. Limiting push rods are fixedly connected to both sides of the surface of the circular disc near the second sealing cover. A water supply pipe is movably sleeved inside the circular disc, with one end of the water supply pipe fixedly connected to the side of the water pump. An atomizing nozzle is fixedly connected to the side of the limiting push rod away from the circular disc. The atomizing nozzle has regularly arranged atomizing nozzles on the side away from the limiting push rod. A docking block is fixedly connected to the top of the circular disc. By including a first motor, an outer sleeve, a telescopic rod, a cleaning sleeve, and a cleaning component, it is beneficial for the first motor to drive the telescopic rod inside the outer sleeve to move during the cleaning process. This allows the telescopic rod to drive the filter element inside the dust removal inner pipeline into the cleaning sleeve for cleaning, reducing manual cleaning operations, reducing labor intensity, and increasing cleaning speed.

[0010] Furthermore, a mating gear is fixedly sleeved on the surface of the dust collector inner core, and a second gear is movably sleeved inside the gear housing. The second gear is connected to a second motor for transmission, and the second gear meshes with the mating gear. A regularly arranged dust collector inner pipe is fixedly sleeved inside the dust collector inner core. A cylindrical inner cavity is opened at each position where the dust collector inner core is sleeved with the dust collector inner pipe. By sleeved with the mating gear on the surface of the dust collector inner core, it is beneficial for the second gear to drive the mating gear to rotate, thereby causing the mating gear to drive the dust collector inner core to rotate, and thus causing the dust collector inner pipe to be driven to complete the switching.

[0011] Furthermore, a filter element is movably sleeved on one side of the dust removal inner pipeline. This movable sleeve of the filter element facilitates its disassembly and cleaning, preventing dust in the flue gas from clogging it and affecting its normal use.

[0012] The technical effects and advantages of this invention are as follows: This invention, by incorporating a dust removal core replacement assembly, a dust removal inner core, a second motor, and dust removal inner pipelines, facilitates the rotation of the dust removal inner core within the dust removal core replacement assembly by the second motor when the flue gas dust removal equipment needs cleaning. This rotation, in turn, causes the dust removal inner pipelines within the dust removal inner core to rotate, allowing different dust removal inner pipelines to connect with the flue gas pipelines, thereby preventing any disruption to the normal emission of flue gas during equipment cleaning.

[0013] This invention, by incorporating a first motor, an outer sleeve, a telescopic rod, a cleaning sleeve, and a cleaning assembly, facilitates the movement of the telescopic rod inside the outer sleeve via the first motor during the cleaning process. This allows the telescopic rod to carry the filter element inside the dust removal inner pipeline into the cleaning sleeve for cleaning, reducing manual cleaning operations, decreasing labor intensity, and increasing cleaning speed. Attached Figure Description

[0014] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 This is a schematic cross-sectional view of the first sealing cap structure of the present invention.

[0017] Figure 4 This is a schematic cross-sectional view of the outer sleeve structure of the present invention.

[0018] Figure 5 This is a schematic diagram of the cleaning sleeve structure of the present invention.

[0019] Figure 6 This is a schematic diagram of the cleaning component structure of the present invention.

[0020] Figure 7 This is a schematic cross-sectional view of the dust removal and core replacement assembly structure of the present invention.

[0021] Figure 8 This is a schematic diagram of the dust removal inner core structure of the present invention.

[0022] Figure 9 This is a schematic cross-sectional view of the dust removal internal pipeline structure of the present invention.

[0023] The attached figures are labeled as follows: 1. Dust collector core replacement assembly; 2. Dust collector inner core; 201. Connecting gear; 202. Cylindrical inner cavity; 3. First sealing cover; 301. Circular through hole; 4. Second sealing cover; 5. Flue gas pipeline; 6. Outer sleeve; 601. Connecting plate; 602. Circular outer shell; 7. First motor; 8. Gear housing; 9. Second motor; 10. Cleaning sleeve; 1001. Sewage pipe; 1002. Connecting block; 11. Cleaning component. ; 1101, Circular disc; 1102, Water pump; 1103, Water supply pipeline; 1104, Limiting push rod; 1105, Atomizing nozzle; 1106, Atomizing nozzle; 1107, Connecting block; 12, Third motor; 13, Telescopic rod; 1301, Rack; 1302, Cleaning scraper; 1303, Connecting rod; 14, First gear; 15, Threaded rod; 16, Dust removal inner pipeline; 17, Second gear; 18, Filter core. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The flue gas dust removal equipment for rotary kilns involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figures 1-9 As shown, the present invention provides a flue gas dust removal device for a rotary kiln, including a dust removal core replacement assembly 1, a dust removal inner core 2 movably sleeved inside the dust removal core replacement assembly 1, a first sealing cover 3 fixedly sleeved on the left side of the dust removal core replacement assembly 1, a second sealing cover 4 fixedly sleeved on the right side of the dust removal core replacement assembly 1, flue gas pipes 5 fixedly connected to the side of the first sealing cover 3 and the second sealing cover 4 away from the surface of the dust removal core replacement assembly 1, an outer sleeve 6 fixedly connected to the side of the first sealing cover 3 away from the surface of the dust removal core replacement assembly 1 and located at the top of the flue gas pipe 5, a first motor 7 fixedly connected to the top of the outer sleeve 6, and a gear housing 8 fixedly connected to the side of the surface of the dust removal inner core 2. In this embodiment, by providing a dust removal core replacement assembly 1, a dust removal inner core 2, a second motor 9, and a dust removal inner pipeline 16, it is beneficial that when the flue gas dust removal equipment needs to be cleaned, the second motor 9 drives the dust removal inner core 2 inside the dust removal core replacement assembly 1 to rotate, thereby causing the dust removal inner pipeline 16 inside the dust removal inner core 2 to rotate as well. This allows different dust removal inner pipelines 16 to connect with the flue gas pipeline 5, thus avoiding affecting the normal emission of flue gas during the equipment cleaning process.

[0026] Among them, a second motor 9 is fixedly connected to one side of the gear housing 8, a cleaning sleeve 10 is fixedly connected to the side of the second sealing cover 4 away from the dust removal and core replacement assembly 1 and located at the top of the flue gas pipeline 5, a third motor 12 is fixedly connected to the top of the cleaning sleeve 10, and a cleaning assembly 11 is movably sleeved inside the cleaning sleeve 10. In this embodiment, the cleaning sleeve 10 and the cleaning component 11 facilitate the cleaning of the equipment via the cleaning component 11, reducing the number of manual cleaning steps and the intensity of manual labor.

[0027] The first sealing cover 3 is provided with a circular through hole 301 at the position of the fixed connection outer sleeve 6. The first sealing cover 3 and the second sealing cover 4 have the same overall shape and structure. In this embodiment, the first sealing cover 3 and the second sealing cover 4 help to seal the dust collector core 2, thereby avoiding leakage during flue gas emission that could lead to environmental pollution. At the same time, they also block dust and other impurities in the air from entering the interior of the dust collector core 2.

[0028] Among them, the outer tube 6 has a connecting plate 601 on the side near the first sealing cover 3, the top side of the outer tube 6 is fixedly connected to a circular shell 602, the inside of the circular shell 602 is movably connected to a first gear 14, the first gear 14 is driven to the side of the first motor 7, and the inside of the outer tube 6 is movably sleeved with a telescopic rod 13. In this embodiment, the outer sleeve 6 and the telescopic rod 13 facilitate quick cleaning of the equipment's interior by pushing it with the telescopic rod 13 when cleaning is required. This makes the operation simple and convenient, reducing the intensity of manual labor.

[0029] The telescopic rod 13 has a rack 1301 at the top, which meshes with the first gear 14. A cleaning scraper 1302 is fixedly connected to the side of the telescopic rod 13 near the first sealing cover 3, and a connecting rod 1303 is fixedly connected to the side of the cleaning scraper 1302 away from the telescopic rod 13. In this embodiment, the rack 1301 meshes with the first gear 14, which facilitates the movement of the rack 1301 by the rotation of the first gear 14, thereby causing the telescopic rod 13 to be extended and retracted.

[0030] Among them, a drain pipe 1001 is provided on one side of the bottom of the cleaning sleeve 10, and a connecting block 1002 is fixedly connected to one side of the top of the dust removal and core replacement assembly 1. A threaded rod 15 is movably sleeved inside the connecting block 1002, and the threaded rod 15 is drivenly connected to one side of the third motor 12. In this embodiment, the cleaning sleeve 10 helps to block the wastewater generated during cleaning, thus preventing the wastewater from splashing and polluting the surrounding environment.

[0031] The cleaning component 11 includes a circular disc 1101. A water pump 1102 is fixedly connected to the side of the circular disc 1101 away from the second sealing cover 4. Limiting push rods 1104 are fixedly connected to both sides of the surface of the circular disc 1101 near the second sealing cover 4. A water supply pipe 1103 is movably sleeved inside the circular disc 1101. One end of the water supply pipe 1103 is fixedly connected to the side of the water pump 1102. An atomizing nozzle 1105 is fixedly connected to the side of the limiting push rod 1104 away from the circular disc 1101. Atomizing nozzles 1106 arranged in a regular pattern are opened on the side of the atomizing nozzle 1105 away from the limiting push rod 1104. A docking block 1107 is fixedly connected to the top of the circular disc 1101. In this embodiment, by providing a first motor 7, an outer sleeve 6, a telescopic rod 13, a cleaning sleeve 10, and a cleaning component 11, it is beneficial for the first motor 7 to drive the telescopic rod 13 inside the outer sleeve 6 to move during the cleaning process. This allows the telescopic rod 13 to drive the filter core 18 inside the dust removal inner pipeline 16 into the cleaning sleeve 10 for cleaning, reducing manual cleaning operations, reducing labor intensity, and increasing cleaning speed.

[0032] Among them, a mating gear 201 is fixedly sleeved on the surface of the dust removal inner core 2, and a second gear 17 is movably sleeved inside the gear housing 8. The second gear 17 is connected to the second motor 9 for transmission. The second gear 17 and the mating gear 201 mesh with each other. A regularly arranged dust removal inner pipe 16 is fixedly sleeved inside the dust removal inner core 2. A cylindrical inner cavity 202 is opened at the position where the dust removal inner core 2 is sleeved with the dust removal inner pipe 16. In this embodiment, by attaching a docking gear 201 to the surface of the dust collector inner core 2, it is beneficial for the docking gear 201 to be rotated by the second gear 17, thereby causing the docking gear 201 to rotate the dust collector inner core 2, and thus causing the dust collector inner pipeline 16 to be switched.

[0033] Among them, a filter element 18 is movably sleeved on one side of the dust removal inner pipeline 16; In this embodiment, the filter element 18 is movably connected inside the dust removal inner pipe 16, which facilitates the disassembly and cleaning of the filter element 18 and prevents dust in the flue gas from clogging it and affecting the normal use of the filter element 18.

[0034] The working principle of this invention is as follows: Firstly, during normal operation, flue gas enters the first sealing cover 3 via flue gas pipe 5, then enters the dust removal inner pipe 16 inside the mating gear 201 of the dust removal inner core 2 via the first sealing cover 3. The flue gas then passes through the filter core 18 inside the dust removal inner pipe 16 to filter out dust. The filtered flue gas is then discharged through the flue gas pipe 5 on one side of the second sealing cover 4. When prolonged flue gas discharge leads to excessive dust accumulation on the filter core 18 and the inner wall of the dust removal inner pipe 16, requiring cleaning, the second motor 9 is activated, causing the second motor 9 to drive the gear housing. The second gear 17 inside 8 rotates, and then the rotation of the second gear 17 drives the docking gear 201 on the surface of the dust removal inner core 2 to rotate. Then the docking gear 201 drives the dust removal inner core 2 to rotate inside the dust removal core replacement assembly 1. At this time, the dust removal inner pipe 16 inside the docking gear 201 is driven to rotate. At this time, another dust removal inner pipe 16 is driven to the position of the first sealing cover 3 and the second sealing cover 4 to fix the flue gas pipe 5 and connect with the flue gas pipe 5. Then the dust removal inner pipe 16 with dust attached rotates to the position of the first sealing cover 3 to fix and connect the outer sleeve 6. Then the flue gas at the position of the flue gas pipe 5 is filtered and discharged normally. Then, the first motor 7 is started, causing the first gear 14 inside the circular outer casing 602 to rotate. The first gear 14 then drives the rack 1301, which meshes with it, to move. The rack 1301 then drives the telescopic rod 13 to move inside the outer casing 6. At this time, the telescopic rod 13 pushes the cleaning scraper 1302 and the connecting rod 1303 into the circular through hole 301. Then, the cleaning scraper 1302 pushes the filter element 18 inside the dust removal inner pipe 16 closer to the inside of the cleaning sleeve 10. When the cleaning scraper 1302 moves inside the dust removal inner pipe 16, the filter element 18 is cleaned by the cleaning scraper. The blade 1302 scrapes away the dust on the inner wall of the dust removal inner pipe 16. Then, when the filter core 18 enters the cleaning sleeve 10, the water pump 1102 is started, so that the water pump 1102 sends the cleaning water to the atomizing nozzle 1105 through the water supply pipe 1103. Then, the atomizing nozzle 1105 sprays the cleaning water atomized through the atomizing nozzle 1106 to the filter core 18. Then, the water reaches the cleaning blade 1302 through the holes on the surface of the filter core 18. At this time, the sprayed cleaning water cleans the filter core 18 and the cleaning blade 1302. Then, the flushed wastewater is discharged through the drain pipe 1001. After cleaning is completed, the first motor 7 is started, causing the telescopic rod 13 to reset and enter the outer sleeve 6. Then, the third motor 12 is started, causing the threaded rod 15 to rotate. The rotation of the threaded rod 15 causes the circular disc 1101, which is limited by the limit push rod 1104, to move closer to the cleaning sleeve 10. At this time, the limit push rod 1104 causes the atomizing nozzle 1105 to push the filter element 18 closer to the dust removal inner pipe 16, causing the filter element 18 to reset. Then, the third motor 12 is started again, causing the circular disc 1101 to move the atomizing nozzle 1105 to reset.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flue gas dust removal device for a rotary kiln, comprising a dust removal core replacement assembly (1), characterized in that: The dust removal core replacement assembly (1) is movably fitted with a dust removal inner core (2). A first sealing cover (3) is fixedly fitted on the left side of the dust removal core replacement assembly (1). A second sealing cover (4) is fixedly fitted on the right side of the dust removal core replacement assembly (1). A flue gas pipeline (5) is fixedly connected to the side of the first sealing cover (3) and the second sealing cover (4) away from the surface of the dust removal core replacement assembly (1). An outer sleeve (6) is fixedly connected to the side of the first sealing cover (3) away from the surface of the dust removal core replacement assembly (1) and located at the top of the flue gas pipeline (5). A first motor (7) is fixedly connected to the top of the outer sleeve (6). A gear housing (8) is fixedly connected to the side of the surface of the dust removal inner core (2).

2. The flue gas dust removal equipment for a rotary kiln according to claim 1, characterized in that: A second motor (9) is fixedly connected to one side of the gear housing (8). A cleaning sleeve (10) is fixedly connected to the side of the second sealing cover (4) away from the dust removal and core replacement assembly (1) and at the top of the flue gas pipeline (5). A third motor (12) is fixedly connected to the top of the cleaning sleeve (10). A cleaning component (11) is movably sleeved inside the cleaning sleeve (10).

3. The flue gas dust removal equipment for a rotary kiln according to claim 1, characterized in that: The first sealing cap (3) has a circular through hole (301) at the position of the fixed connection outer sleeve (6). The first sealing cap (3) and the second sealing cap (4) have the same overall shape and structure.

4. The flue gas dust removal equipment for a rotary kiln according to claim 1, characterized in that: A connecting plate (601) is provided on the side of the outer tube (6) near the first sealing cover (3). A circular outer shell (602) is fixedly connected to the top side of the outer tube (6). A first gear (14) is movably connected inside the circular outer shell (602). The first gear (14) is driven to the side of the first motor (7). A telescopic rod (13) is movably sleeved inside the outer tube (6).

5. The flue gas dust removal equipment for a rotary kiln according to claim 4, characterized in that: A rack (1301) is provided at the top of the telescopic rod (13), the rack (1301) meshes with the first gear (14), a cleaning scraper (1302) is fixedly connected to the side of the telescopic rod (13) near the first sealing cover (3), and a connecting rod (1303) is fixedly connected to the side of the cleaning scraper (1302) away from the telescopic rod (13).

6. The flue gas dust removal equipment for a rotary kiln according to claim 2, characterized in that: A drain pipe (1001) is provided on one side of the bottom of the cleaning sleeve (10), and a connecting block (1002) is fixedly connected to one side of the top of the dust removal and core replacement assembly (1). A threaded rod (15) is movably sleeved inside the connecting block (1002), and the threaded rod (15) is drivenly connected to one side of the third motor (12).

7. The flue gas dust removal equipment for a rotary kiln according to claim 2, characterized in that: The cleaning component (11) includes a circular disc (1101), a water pump (1102) is fixedly connected to the side of the circular disc (1101) away from the second sealing cover (4), and limit push rods (1104) are fixedly connected to both sides of the surface of the circular disc (1101) near the second sealing cover (4). A water supply pipe (1103) is movably sleeved inside the circular disc (1101), and one end of the water supply pipe (1103) is fixedly connected to the side of the water pump (1102). An atomizing nozzle (1105) is fixedly connected to the side of the limit push rod (1104) away from the circular disc (1101). Atomizing nozzles (1106) arranged in a regular pattern are opened on the side of the atomizing nozzle (1105) away from the limit push rod (1104). A docking block (1107) is fixedly connected to the top of the circular disc (1101).

8. The flue gas dust removal equipment for a rotary kiln according to claim 1, characterized in that: The dust removal inner core (2) is fixedly fitted with a mating gear (201) on its surface. The gear housing (8) is movably fitted with a second gear (17). The second gear (17) is connected to the second motor (9) for transmission. The second gear (17) and the mating gear (201) mesh with each other. The dust removal inner core (2) is fixedly fitted with a regularly arranged dust removal inner pipe (16). The dust removal inner core (2) is provided with a cylindrical inner cavity (202) at the position where the dust removal inner pipe (16) is fitted.

9. A flue gas dust removal device for a rotary kiln according to claim 8, characterized in that: A filter core (18) is movably sleeved on one side of the dust removal inner pipeline (16).

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