Air purification device at top of steel structure chimney

Abstract

The utility model provides a steel structure chimney top air purification device, which relates to the technical field of flue gas treatment, and comprises a shell, a top plate is fixed at the top end of the shell, the inner wall of the shell is rotatably connected with a turntable, a filter device is arranged below the turntable, and the filter device comprises a cloth bag. A plurality of circulating openings which are circumferentially formed are formed in the upper surface of the turntable, and the cloth bags are communicated with the corresponding circulating openings. According to the steel structure chimney top air purification device, the cloth bag is arranged to filter air entering the shell, dust particles are blocked by the cloth bag and are reserved on the outer surface of the cloth bag, the air enters the position above the rotary disc through the cloth bag and leaves the shell through the air outlet pipe, and collection of solid particles in waste gas is achieved; the problem that a common boiler flue gas treatment system in the prior art is difficult to clean solid particles contained in waste gas is solved.

Description

Technical Field

[0001] The utility model relates to an air purification device, in particular to an air purification device at the top of a steel structure chimney, belonging to the technical field of flue gas treatment. Background Art

[0002] Boilers generally use coal as fuel. The coal-fired flue gas contains a large amount of toxic gases and pollutants such as fine dust particles, sulfur dioxide, nitrogen monoxide, and carbon black, which generally seriously exceed the limits specified by the state. To solve the problem of serious over-standard emission of boiler flue gas, a boiler flue gas treatment system is generally set up to purify the flue gas so that the discharged flue gas meets the national regulations.

[0003] For the boiler flue gas treatment system, a demister is generally used. The purification of the flue gas by the demister only removes the water mist in the flue gas. There are still many solid particles containing nitrogen and sulfur elements remaining in the flue gas after the operation of the demister. Once these solid particles are discharged into the air, they will also cause great damage to the environment, resulting in the flue gas discharged through the chimney at the top of the purification tower still being difficult to meet the national regulations.

[0004] Therefore, an air purification device at the top of a steel structure chimney is proposed here. Content of the Utility Model

[0005] The utility model provides an air purification device at the top of a steel structure chimney to solve the problem that the common boiler flue gas treatment system in the prior art is difficult to clean the solid particles contained in the waste gas, and at the same time realizes the storage of the solid particles after cleaning to avoid the solid particles being discharged into the air and polluting the environment.

[0006] The utility model is realized by the following technical solutions: an air purification device at the top of a steel structure chimney, including a housing, the top end of the housing is fixed with a top plate, the inner wall of the housing is rotatably connected with a turntable, a filtering device is arranged below the turntable, the filtering device includes a cloth bag, a plurality of circumferentially arranged through holes are formed on the upper surface of the turntable, the cloth bag is communicated with its corresponding through hole, the bottom surface of the top plate is rotatably connected with a rotating rod, the rotating rod penetrates through the turntable, a cleaning device is arranged inside the housing, the cleaning device includes a cleaning sleeve sleeved on the outer surface of the cloth bag, a brush is installed inside the cleaning sleeve, an air inlet pipe and an air outlet pipe are fixedly communicated with the outer surface of the housing, the air inlet pipe is located below the turntable, the air outlet pipe is located above the turntable, and a conical cylinder is fixedly communicated with the bottom end of the housing.

[0007] A frame is provided inside the cloth bag. An external gear ring is rotatably connected to the upper surface of the turntable. The frame is fixed to the corresponding external gear ring. An internal gear ring is fixed to the inner wall of the outer shell. The internal gear ring meshes with the external gear ring. The support of the frame can ensure that the cloth bag will not deform during the cleaning process, maintaining the stability of the cloth bag. The external gear ring is driven to rotate by the turntable. Since the external gear ring meshes with the internal gear ring, the external gear ring rotates on its own as it rotates with the turntable, thereby driving the cloth bag to rotate on its own as it rotates with the turntable.

[0008] The cleaning device further includes a lifting sleeve provided on the outer surface of the rotating rod. A bidirectional thread groove is provided on the outer surface of the rotating rod. The lifting sleeve meshes with the rotating rod through the bidirectional thread groove.

[0009] Furthermore, a support ring is sleeved on the outer surface of the rotating rod. A fixing plate is fixed to the side surface of the support ring. The other end of the fixing plate is fixed to the conical cylinder. A plug rod is fixed to the top end of the support ring. The plug rod penetrates through the lifting sleeve, ensuring that the lifting sleeve can only perform reciprocating up and down movements driven by the rotating rod.

[0010] Furthermore, an auxiliary ring is sleeved on the outer surface of the lifting sleeve. An auxiliary rod is fixed to the outer surface of the auxiliary ring. The other end of the auxiliary rod is fixed to the cleaning sleeve. The lifting of the lifting sleeve causes the auxiliary ring to lift. The auxiliary ring drives the cleaning sleeve to lift while lifting, and the cleaning sleeve does not affect the rotation of the cloth bag while lifting, facilitating the cleaning of the cloth bag by the cleaning sleeve.

[0011] A scraper is installed on the inner wall of the conical cylinder. A connecting rod is fixed to the inner side surface of the scraper. The other end of the connecting rod is fixed to the rotating rod. A collection cylinder is installed at the bottom end of the conical cylinder.

[0012] A motor is installed on the upper surface of the top plate. The output end of the motor is fixed to the rotating rod.

[0013] The present utility model provides a steel structure chimney top air purification device, and its beneficial effects are as follows:

[0014] 1. For this steel structure chimney top air purification device, the air entering the interior of the outer shell is filtered by setting a cloth bag. Dust particles are blocked by the cloth bag and remain on the outer surface of the cloth bag. The air passes through the cloth bag and enters above the turntable and leaves the outer shell through the air outlet pipe, realizing the collection of solid particles in the waste gas and solving the problem that in the common boiler flue gas treatment system in the prior art, it is difficult to clean the solid particles contained in the waste gas.

[0015] 2. The air purification device at the top of the steel chimney can lift the lifting sleeve driven by the rotating rod by setting up the cleaning sleeve. The auxiliary ring can be lifted by the lifting of the lifting sleeve. While the auxiliary ring is lifting, it drives the cleaning sleeve to lift. The lifting of the cleaning sleeve does not affect the rotation of the cloth bag, which is convenient for the cleaning sleeve to clean the cloth bag. After cleaning, the solid particles fall into the collection cylinder, realizing the storage of solid particles after cleaning and avoiding the pollution of the environment by the emission of solid particles into the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 It is an internal structural schematic diagram of the housing of the present utility model;

[0018] Figure 3 It is a structural schematic diagram of the filtering device of the present utility model;

[0019] Figure 4 It is a detailed structural diagram at the position of the lifting sleeve of the present utility model.

[0020] DESCRIPTION OF THE REFERENCE NUMERALS

[0021] 1. Housing; 2. Top plate; 3. Turntable;

[0022] 4. Filtering device; 401. Cloth bag; 402. Frame;

[0023] 5. Rotating rod;

[0024] 6. Cleaning device; 601. Cleaning sleeve; 602. Brush;

[0025] 7. Air inlet pipe; 8. Air outlet pipe; 9. Conical cylinder; 10. Outer tooth ring; 11. Inner tooth ring; 12. Lifting sleeve; 13. Support ring; 14. Fixed plate; 15. Insert rod; 16. Auxiliary ring; 17. Auxiliary rod; 18. Scraper; 19. Connecting rod; 20. Collection cylinder; 21. Motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[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] Please refer to Figures 1 to 4, an embodiment of the utility model provides an air purification device for the top of a steel chimney, which includes a housing 1. A top plate 2 is fixed to the top end of the housing 1. A turntable 3 is rotatably connected to the inner wall of the housing 1. A filtering device 4 is arranged below the turntable 3. The filtering device 4 includes a cloth bag 401. A plurality of flow ports arranged in a circular pattern are formed on the upper surface of the turntable 3. The cloth bag 401 is communicated with its corresponding flow port. A rotating rod 5 is rotatably connected to the bottom surface of the top plate 2. The rotating rod 5 penetrates through the turntable 3. A cleaning device 6 is arranged inside the housing 1. The cleaning device 6 includes a cleaning sleeve 601 sleeved on the outer surface of the cloth bag 401. A brush 602 is installed inside the cleaning sleeve 601. An air inlet pipe 7 and an air outlet pipe 8 are fixedly communicated with the outer surface of the housing 1. The air inlet pipe 7 is located below the turntable 3, and the air outlet pipe 8 is located above the turntable 3. A conical cylinder 9 is fixedly communicated with the bottom end of the housing 1.

[0028] Please refer specifically to Figure 1 , Figure 2 and Figure 3 , a frame 402 is arranged inside the cloth bag 401. An external gear ring 10 is rotatably connected to the upper surface of the turntable 3. The frame 402 is fixed to its corresponding external gear ring 10. An internal gear ring 11 is fixed to the inner wall of the housing 1. The internal gear ring 11 meshes with the external gear ring 10. The support of the frame 402 can ensure that the cloth bag 401 will not be deformed during the cleaning process, maintaining the stability of the cloth bag 401. The external gear ring 10 is driven to rotate by the turntable 3. Since the external gear ring 10 meshes with the internal gear ring 11, the external gear ring 10 rotates self - rotatably during the rotation of the turntable 3, thereby driving the cloth bag 401 to rotate self - rotatably during the rotation of the turntable 3. The cleaning device 6 further includes a lifting sleeve 12 sleeved on the outer surface of the rotating rod 5. A bidirectional thread groove is formed on the outer surface of the rotating rod 5. The lifting sleeve 12 meshes with the rotating rod 5 through the bidirectional thread groove.

[0029] Please refer specifically to Figure 2 , Figure 3 and Figure 4 , a support ring 13 is sleeved on the outer surface of the rotating rod 5. A fixing plate 14 is fixed to the side surface of the support ring 13. The other end of the fixing plate 14 is fixed to the conical cylinder 9. A plug rod 15 is fixed to the top end of the support ring 13. The plug rod 15 penetrates through the lifting sleeve 12, ensuring that the lifting sleeve 12 can only move up and down reciprocally under the drive of the rotating rod 5. An auxiliary ring 16 is sleeved on the outer surface of the lifting sleeve 12. An auxiliary rod 17 is fixed to the outer surface of the auxiliary ring 16. The other end of the auxiliary rod 17 is fixed to the cleaning sleeve 601. The lifting of the lifting sleeve 12 causes the auxiliary ring 16 to lift. The auxiliary ring 16 drives the cleaning sleeve 601 to lift while lifting. The cleaning sleeve 601 can lift without affecting the rotation of the cloth bag 401, facilitating the cleaning of the cloth bag 401 by the cleaning sleeve 601.

[0030] Please refer specifically to Figure 2 ,Figure 3 and Figure 4 On the inner wall of the conical cylinder 9, a scraping plate 18 is installed. On the inner side surface of the scraping plate 18, a connecting rod 19 is fixed. The other end of the connecting rod 19 is fixed to the rotating rod 5. At the bottom end of the conical cylinder 9, a collecting cylinder 20 is installed. On the upper surface of the top plate 2, a motor 21 is installed. The output end of the motor 21 is fixed to the rotating rod 5.

[0031] When the present utility model is in use: Exhaust gas is introduced into the interior of the outer shell 1 through the intake pipe 7. The motor 21 is started. The output end of the motor 21 drives the rotating rod 5 to rotate. The rotating rod 5 drives the rotating disc 3 to rotate. The rotation of the rotating disc 3 drives the cloth bag 401 to rotate. Due to the meshing of the internal gear ring 11 and the external gear ring 10, the cloth bag 401 rotates around the rotating disc 3 while also rotating on its own axis.

[0032] The cloth bag 401 filters the air entering the interior of the outer shell 1. Dust particles are blocked by the cloth bag 401 and remain on the outer surface of the cloth bag 401. The air passes through the cloth bag 401 and enters above the rotating disc 3 and leaves the outer shell 1 through the exhaust pipe 8, achieving the collection of solid particles in the exhaust gas and solving the problem that in the existing boiler flue gas treatment system, it is difficult to clean the solid particles contained in the exhaust gas.

[0033] At the same time, the rotation of the rotating rod 5 causes the lifting sleeve 12 to lift and lower. The lifting and lowering of the lifting sleeve 12 causes the auxiliary ring 16 to lift and lower. The auxiliary ring 16 drives the cleaning sleeve 601 to lift and lower while lifting and lowering, and the cleaning sleeve 601 does not affect the rotation of the cloth bag 401 while lifting and lowering, facilitating the cleaning of the cloth bag 401 by the cleaning sleeve 601. The solid particles after cleaning fall into the collecting cylinder 20, achieving the storage of the solid particles after cleaning and preventing the solid particles from being discharged into the air to pollute the environment.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An air purification device at the top of a steel chimney, comprising a housing (1), characterized in that: A top plate (2) is fixed to the top end of the outer shell (1). A turntable (3) is rotatably connected to the inner wall of the outer shell (1). A filtering device (4) is arranged below the turntable (3). The filtering device (4) includes a cloth bag (401). A plurality of circumferentially arranged through holes are formed in the upper surface of the turntable (3), and the cloth bag (401) communicates with its corresponding through hole. A rotating rod (5) is rotatably connected to the bottom surface of the top plate (2). The rotating rod (5) penetrates through the turntable (3). A cleaning device (6) is arranged inside the outer shell (1). The cleaning device (6) includes a cleaning sleeve (601) sleeved on the outer surface of the cloth bag (401). A brush (602) is installed inside the cleaning sleeve (601). An air inlet pipe (7) and an air outlet pipe (8) are fixedly communicated with the outer surface of the outer shell (1). The air inlet pipe (7) is located below the turntable (3), and the air outlet pipe (8) is located above the turntable (3). A conical cylinder (9) is fixedly communicated with the bottom end of the outer shell (1).

2. The air purification device at the top of the steel structure chimney according to claim 1, characterized in that: A frame (402) is arranged inside the cloth bag (401). An external gear ring (10) is rotatably connected to the upper surface of the turntable (3). The frame (402) is fixed to its corresponding external gear ring (10). An internal gear ring (11) is fixed to the inner wall of the outer shell (1). The internal gear ring (11) meshes with the external gear ring (10).

3. The air purification device at the top of a steel chimney according to claim 1, wherein: The cleaning device (6) further includes a lifting sleeve (12) arranged on the outer surface of the rotating rod (5). A bidirectional thread groove is formed in the outer surface of the rotating rod (5). The lifting sleeve (12) meshes with the rotating rod (5) through the bidirectional thread groove.

4. The air purification device at the top of the steel structure chimney according to claim 3, characterized in that: A support ring (13) is sleeved on the outer surface of the rotating rod (5). A fixing plate (14) is fixed to the side surface of the support ring (13). The other end of the fixing plate (14) is fixed to the conical cylinder (9). A plug rod (15) is fixed to the top end of the support ring (13). The plug rod (15) penetrates through the lifting sleeve (12).

5. The air purification device at the top of the steel structure chimney according to claim 4, characterized in that: An auxiliary ring (16) is sleeved on the outer surface of the lifting sleeve (12). An auxiliary rod (17) is fixed to the outer surface of the auxiliary ring (16). The other end of the auxiliary rod (17) is fixed to the cleaning sleeve (601).

6. The air purification device at the top of a steel structure chimney according to claim 1, characterized in that: A scraping plate (18) is installed on the inner wall of the conical cylinder (9). A connecting rod (19) is fixed to the inner side surface of the scraping plate (18). The other end of the connecting rod (19) is fixed to the rotating rod (5). A collecting cylinder (20) is installed at the bottom end of the conical cylinder (9).

7. The air purification device at the top of the steel structure chimney according to claim 1, wherein: A motor (21) is installed on the upper surface of the top plate (2). The output end of the motor (21) is fixed to the rotating rod (5).

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