Industrial tail gas geological storage device with carbon capture function and storage method of industrial tail gas geological storage device

Abstract

The invention relates to the technical field of harmful gas treatment in environmental protection, and discloses an industrial tail gas geological storage device with a carbon capture function and a storage method thereof.The industrial tail gas geological storage device comprises overground equipment and underground equipment, the overground equipment comprises an induced draft fan, the induced draft fan comprises a shell, and a cooling liquid box is fixedly installed at the top end of the shell; a cooling liquid ring is arranged at the position where an output shaft of the motor is connected with fan blades, a transmission wheel is driven to rotate through driving of the motor so as to drive a rotating shaft to rotate, transmission blades on the rotating shaft rotate in the liquid guide pipe, the fan blades are driven to rotate, the fan blades are driven to rotate, the fan blades are driven to rotate, and the fan blades are driven to rotate. Cooling liquid in the cooling liquid box can be pumped out and conveyed into the cooling liquid ring through the liquid inlet pipe, the output shaft of the motor makes direct contact with the cooling liquid to be cooled, cooling of the connecting position of the output shaft of the motor and the fan blades is achieved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection and treatment of harmful gases, and more specifically, to an industrial tail gas geological storage device with carbon capture function and a storage method thereof. Background Art

[0002] Industrial exhaust gas and dust pollution to the environment and harm to human health have been a problem since the beginning of industry. Although equipment transformation and pollution prevention are being actively carried out all over the world, they are mainly implemented in the control of dust and pollution discharge, while industrial exhaust gas is not sufficiently controlled due to technical factors. Later, with the advancement of technology and the requirements of the situation, although more attention and efforts have been paid, the desulfurization and emission reduction of sulfur dioxide have been mainly focused on. For the control of carbon monoxide, carbon dioxide and nitrogen oxides, physical control methods can be used to achieve simple structure control and make full use of civil engineering projects; in the existing technology, induced draft fans are used to capture and transport industrial exhaust gas from the exhaust outlet, but in actual use, the motor output shaft and the fan blades in the induced draft fan are exposed to the exhaust gas and directly contact with the industrial exhaust gas, which may cause excessive temperature and reduce the service life of the device. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an industrial tail gas geological storage device with a carbon capture function and a storage method thereof, which has the advantages of good heat dissipation effect and long service life.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an industrial tail gas geological storage device with a carbon capture function, comprising above-ground equipment and underground equipment, the above-ground equipment comprising an induced draft fan, the induced draft fan comprising an outer shell, a coolant tank is fixedly installed on the top of the outer shell, the right end of the coolant tank is connected to a liquid guide pipe, a motor is fixedly installed in the inner cavity of the outer shell, a fan blade is fixedly sleeved on the output end of the motor, the inner cavity of the liquid guide pipe is rotatably connected to a rotating shaft, a transmission blade located in the liquid guide pipe is fixedly installed on the outer side of the rotating shaft, the motor and the rotating shaft are transmission-connected, and a coolant ring respectively connected to the coolant tank and the liquid guide pipe is rotatably provided at the connection between the output end of the motor and the fan blade, and the coolant in the coolant tank is driven to circulate in the liquid guide pipe, the coolant ring and the coolant tank as the transmission blade rotates.

[0005] As a preferred technical solution of the present invention, a transmission wheel is fixedly sleeved on the output end and the rotating shaft of the motor, and a transmission belt is connected to the surface of the transmission wheel.

[0006] As a preferred technical solution of the present invention, a liquid inlet pipe and a liquid return pipe connected to the liquid guide pipe and the coolant tank are fixedly installed on the coolant ring.

[0007] As a preferred technical solution of the present invention, an air box and an inflating member for inflating the air box are fixedly installed on the outer shell. A lifting plate that divides the inner cavity of the air box into an upper cavity and a lower cavity is movably connected in the air box. A jetting member is provided in the outer shell. The jetting member is communicated with the air box and the communication part is blocked by the lifting plate. A compression member is fixedly installed at the bottom end of the lifting plate.

[0008] As a preferred technical solution of the present invention, the compression member includes a telescopic rod and a spring. The telescopic rod is sleeved in the spring, and both ends of the telescopic rod and the spring are connected to the lifting plate and the air box respectively.

[0009] As a preferred technical solution of the present invention, the jetting member includes a connecting pipe. The connecting pipe is fixedly installed at the rear side of the inner cavity of the outer shell. A nozzle facing the fan blade is fixedly installed at the front end of the connecting pipe. The connecting pipe is communicated with the air box.

[0010] As a preferred technical solution of the present invention, a shielding plate is fixedly installed on the front side of the lifting plate. The shielding plate blocks the connecting pipe. As the lifting plate drives the shielding plate to move downward to unblock the connecting pipe, the compressed gas is sprayed from the nozzle through the connecting pipe to the fan blade.

[0011] As a preferred technical solution of the present invention, the inflating member includes a fixed box. The fixed box communicated with the air box is fixedly installed at the top end of the outer shell. A connecting disk is fixedly installed at the right end of the rotating shaft. A fixed shaft is fixedly installed at the right end of the connecting disk. A moving plate is movably connected in the inner cavity of the fixed box. A connecting rod hinged to the moving plate is rotatably connected to the surface of the fixed shaft. As the connecting disk rotates, the connecting rod reciprocates linearly in the fixed box.

[0012] As a preferred technical solution of the present invention, a one-way intake pipe and a one-way outlet pipe are fixedly installed at the front end of the fixed box. The rear end of the one-way outlet pipe is fixedly installed at the top end of the air box.

[0013] The geological sequestration method of an industrial tail gas with carbon capture function includes the following steps:

[0014] Capturing, detecting and transporting by ground equipment to underground equipment for treatment and sequestration; the ground equipment includes that the industrial tail gas is output through the tail gas capture port, and then captured by the combined action of the negative pressure capture smoke pipe and the induced draft fan, and then sent to the gas analyzer through the converging-diverging positive pressure sonic pipe to analyze the components of the industrial tail gas, and then transported to the air flow transmission device, and then input into the underground equipment through the transmission pipeline and the gas compression equipment. In the underground equipment, the industrial tail gas first enters the underground dust interception chamber, and then enters the sulfur dioxide desorption chamber. After treatment, it enters the subsequent carbonization sequestration chamber group. A small amount of industrial tail gas that fails to be completely treated is sent to the gas compression equipment again through the regulation chamber for recirculation treatment;

[0015] When the induced draft fan is working, the motor drives the fan blades to rotate, sucking in and capturing industrial waste gas for transportation. At the same time, the motor drives the rotation of the rotating shaft through the transmission of the transmission wheel and the transmission belt. When the rotating shaft rotates in the liquid guide pipe, it can extract the coolant from the coolant tank, transport it through the liquid inlet pipe to the coolant ring, so that the coolant cools down the connection position between the output shaft of the motor and the fan blades, and then returns to the coolant tank through the liquid return pipe to cool down the coolant;

[0016] While the rotating shaft is rotating, it can drive the fixed shaft on the connecting disc to rotate around the axis of the rotating shaft, and then drive the moving plate to move back and forth in the fixed box through the connecting rod, sucking in the outside air into the fixed box and sending it into the air box through the one-way air outlet pipe, increasing the pressure in the air box continuously. When the pressure in the air box is greater than the elasticity of the spring, it will push the lifting plate downward, and then drive the shielding plate to move downward. When the shielding plate completely leaves the connecting pipe, the connecting pipe is connected to the space above the lifting plate in the air box. At this time, the compressed air will enter the nozzle through the connecting pipe and then be sprayed on the fan blades through the nozzle to clean the dust on the fan blades.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By setting a coolant ring at the connection position between the output shaft of the motor and the fan blades, and driving the rotation of the transmission wheel by the motor to drive the rotation of the rotating shaft, the transmission blades on the rotating shaft rotate in the liquid guide pipe, which can realize extracting the coolant from the coolant tank, transporting it through the liquid inlet pipe to the coolant ring, and making the output shaft of the motor directly contact with the coolant for cooling, achieving the cooling of the connection between the output shaft of the motor and the fan blades, and improving the service life of the device.

[0019] 2. When the rotating shaft rotates, it drives the fixed shaft to rotate, making the connecting rod drive the moving plate to move back and forth in the fixed box, sucking in the outside air into the fixed box and then sending it into the air box, storing compressed gas in the air box, and driving the lifting plate to move downward as the gas increases. Finally, it is sprayed on the fan blades through the nozzle, thereby cleaning the surface of the fan blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall process flow of the present invention;

[0021] Figure 2 is a schematic diagram of the overall structure of the induced draft fan of the present invention;

[0022] Figure 3 is a schematic cross-sectional view of the structure housing of the present invention;

[0023] Figure 4 is of the present invention Figure 3 The enlarged schematic diagram at A in;

[0024] Figure 5 This is a schematic cross-sectional view of the structure fixing box of the present invention;

[0025] Figure 6 This is a schematic cross-sectional view of the structure air box of the present invention.

[0026] In the figure: 1. Outer shell; 2. Cooling liquid tank; 3. Liquid guide pipe; 4. Motor; 5. Fan blade; 6. Rotating shaft; 7. Transmission wheel; 8. Transmission belt; 9. Cooling liquid ring; 10. Liquid inlet pipe; 11. Liquid return pipe; 12. Air box; 13. Lifting plate; 14. Telescopic rod; 15. Spring; 16. Baffle plate; 17. Connecting pipe; 18. Nozzle; 19. Transmission blade; 20. Fixing box; 21. Connecting disc; 22. Fixed shaft; 23. Connecting rod; 24. Moving plate; 25. One-way air inlet pipe; 26. One-way air outlet pipe. Specific implementation manners

[0027] 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 making creative efforts belong to the scope of protection of the present invention.

[0028] As Figures 1 to 6 shown, the present invention provides an industrial waste gas geological sequestration device with carbon capture function, including above-ground equipment and underground equipment. The above-ground equipment includes an induced draft fan, and the induced draft fan includes an outer shell 1. A cooling liquid tank 2 is fixedly installed at the top end of the outer shell 1. A liquid guide pipe 3 is communicated with the right end of the cooling liquid tank 2. A motor 4 is fixedly installed in the inner cavity of the outer shell 1. A fan blade 5 is fixedly sleeved at the output end of the motor 4. A rotating shaft 6 is rotatably connected in the inner cavity of the liquid guide pipe 3. A transmission blade 19 located in the liquid guide pipe 3 is fixedly installed on the outer side of the rotating shaft 6. The motor 4 and the rotating shaft 6 are in transmission connection. A cooling liquid ring 9 which is respectively communicated with the cooling liquid tank 2 and the liquid guide pipe 3 is rotatably arranged at the connection between the output end of the motor 4 and the fan blade 5. As the transmission blade 19 rotates, the cooling liquid in the cooling liquid tank 2 circulates in the liquid guide pipe 3, the cooling liquid ring 9 and the cooling liquid tank 2;

[0029] Transmission wheels 7 are fixedly sleeved on both the output end of the motor 4 and the rotating shaft 6, and a transmission belt 8 is in transmission connection on the surface of the transmission wheels 7;

[0030] A liquid inlet pipe 10 and a liquid return pipe 11 which are respectively communicated with the liquid guide pipe 3 and the cooling liquid tank 2 are fixedly installed on the cooling liquid ring 9;

[0031] Among them, the transmission blade 19 is located in the inner cavity of the liquid guide pipe 3. The liquid guide pipe 3 is fixedly installed at the top end of the outer shell 1. The top end of the liquid inlet pipe 10 is fixedly connected to the right side of the bottom end of the liquid guide pipe 3. The top end of the liquid return pipe 11 is fixedly connected to the left side of the coolant tank 2;

[0032] By arranging a coolant ring 9 at the position where the output shaft of the motor 4 is connected to the fan blade 5, the coolant ring 9 is fixedly installed in the outer shell 1 through the liquid inlet pipe 10 and the liquid return pipe 11. At the same time, the coolant ring 9 can also be set to be fixedly connected to the housing of the motor 4. Driven by the motor 4, the driving wheel 7 rotates to drive the rotation of the rotating shaft 6, so that the transmission blade 19 on the rotating shaft 6 rotates in the liquid guide pipe 3. It can realize pumping out the coolant in the coolant tank 2 and transporting it to the coolant ring 9 through the liquid inlet pipe 10, and entering to directly contact and cool the output shaft of the motor 4 with the coolant, achieving the cooling of the connection between the output shaft of the motor 4 and the fan blade 5, and improving the service life of the device.

[0033] Cooling fins are arranged inside the coolant tank 2. The liquid inlet pipe 10, the coolant ring 9, the liquid return pipe 11, the coolant tank 2 and the liquid guide pipe 3 form an entire loop, dissipating heat through the coolant ring 9, and cooling the coolant with a certain temperature through the cooling fins in the coolant tank 2, realizing continuous heat dissipation during the operation of the device.

[0034] Among them, the coolant ring 9 is located at the position where the output end of the motor 4 is connected to the fan blade 5, and the coolant ring 9 is hollow;

[0035] The hollow-shaped coolant ring 9 can realize the direct contact between the coolant and the output shaft of the motor 4 with the coolant, improving the heat dissipation efficiency.

[0036] Among them, an air box 12 and an inflating member for inflating the air box 12 are fixedly installed on the outer shell 1. A lifting plate 13 that divides the inner cavity of the air box 12 into an upper cavity and a lower cavity is movably connected inside the air box 12. A jetting member is arranged inside the outer shell 1. The jetting member is connected to the air box and the connection part is blocked by the lifting plate 13. A compression member is fixedly installed at the bottom end of the lifting plate 13;

[0037] By applying an upward elastic force to the lifting plate 13 through the elasticity of the spring 15, the lifting plate 13 has a tendency to move upward. It can realize that after the compressed air in the air box 12 is discharged, when the downward pressure on the lifting plate 13 is less than the elastic force of the spring 15, the lifting plate 13 can be pushed upward to close the connecting pipe 17 by the baffle plate 16, and then perform the next gas compression. The setting of the telescopic rod 14 ensures the stability of the up and down movement of the lifting plate 13.

[0038] Among them, the compression member includes a telescopic rod 14 and a spring 15. The telescopic rod 14 is sleeved inside the spring 15, and both ends of the telescopic rod 14 and the spring 15 are connected to the lifting plate 13 and the air box 12 respectively;

[0039] Among them, the jet part includes a connecting pipe 17. The connecting pipe 17 is fixedly installed at the rear side of the inner cavity of the outer shell 1. The front end of the connecting pipe 17 is fixedly installed with a nozzle 18 facing the fan blade 5. The connecting pipe 17 is communicated with the air box 12;

[0040] A shielding plate 16 is fixedly installed on the front side of the lifting plate 13. The shielding plate 16 shields the connecting pipe 17. As the lifting plate 13 drives the shielding plate 16 to move downward, the connecting pipe 17 is no longer shielded. Compressed gas is sprayed from the nozzle 18 through the connecting pipe 17 onto the fan blade 5

[0041] When the shielding plate 16 moves downward to below the connecting pipe 17, the connecting pipe 17 is communicated with the compressed gas. The compressed gas is sprayed from the nozzle 18 through the connecting pipe 17 onto the fan blade 5 to clean the fan blade 5.

[0042] When the shielding plate 16 follows the lifting plate 13 and moves downward, the shielding plate 16 will continuously keep the connecting pipe 17 closed, so as to ensure that there is sufficient gas in the air box 12 to clean the dust on the surface of the fan blade 5.

[0043] Among them, the air filling part includes a fixed box 20. The fixed box 20 communicated with the air box 12 is fixedly installed at the top end of the outer shell 1. The right end of the rotating shaft 6 is fixedly installed with a connecting disc 21. The right end of the connecting disc 21 is fixedly installed with a fixed shaft 22. A moving plate 24 is movably connected to the inner cavity of the fixed box 20. A connecting rod 23 hinged to the moving plate 24 is rotatably connected to the surface of the fixed shaft 22. As the connecting disc 21 rotates, the connecting rod 23 reciprocates linearly in the fixed box 20;

[0044] A one-way intake pipe 25 and a one-way outlet pipe 26 are fixedly installed at the front end of the fixed box 20. The rear end of the one-way outlet pipe 26 is fixedly installed at the top end of the air box 12;

[0045] When the rotating shaft 6 rotates to drive the fixed shaft 22 to rotate, the connecting rod 23 drives the moving plate 24 to move back and forth in the fixed box 20. After sucking the outside air into the fixed box 20 through the one-way intake pipe 25, it is sent into the air box 12 through the one-way outlet pipe 26.

[0046] The geological sequestration method of an industrial waste gas geological sequestration device with carbon capture function includes the following steps:

[0047] Captured, detected by ground equipment and transported to underground equipment for treatment and storage; the ground equipment includes that industrial tail gas is output through the tail gas capture port, and then captured by the combined action of the negative pressure capture smoke pipe and the induced draft fan. After that, it is sent to the gas analyzer through the converging-diverging positive pressure sonic pipe to analyze the components of the industrial tail gas, and then transported to the air flow transmission device. Subsequently, it is input into the underground equipment through the transmission pipeline and the gas compression equipment. In the underground equipment, the industrial tail gas first enters the underground dust interception chamber, then enters the sulfur dioxide desorption chamber, and after treatment, enters the subsequent carbonization storage chamber group. A small amount of industrial tail gas that has not been fully treated is transported to the gas compression equipment again through the adjustment chamber for recirculation treatment;

[0048] When the induced draft fan is working, the motor 4 drives the fan blade 5 to rotate, sucking in the industrial tail gas for capture and transportation. At the same time, the motor 4 will drive the rotating shaft 6 to rotate through the transmission of the transmission wheel 7 and the transmission belt 8. When the rotating shaft 6 rotates in the liquid guide pipe 3, the coolant in the coolant tank 2 can be pumped out and transported to the coolant ring 9 through the liquid inlet pipe 10, so that the coolant cools down the connection position between the output shaft of the motor 4 and the fan blade 5, and then returns to the coolant tank 2 through the liquid return pipe 11 to cool down the coolant;

[0049] While the rotating shaft 6 is rotating, it can drive the fixed shaft 22 on the connecting disk 21 to rotate around the axis of the rotating shaft 6. Then, through the connecting rod 23, it drives the moving plate 24 to move back and forth in the fixed box 20, sucking in the outside air into the fixed box 20 and sending it into the air box 12 through the one-way air outlet pipe 26, making the pressure in the air box 12 continuously increase. When the pressure in the air box 12 is greater than the elasticity of the spring 15, it will push the lifting plate 13 downward, and then drive the shielding plate 16 to move downward. When the shielding plate 16 completely leaves the connecting pipe 17, the connecting pipe 17 is connected to the space above the lifting plate 13 in the air box 12. At this time, the compressed air will enter the nozzle 18 through the connecting pipe 17 and then be sprayed on the fan blade 5 through the nozzle 18 to clean the dust on the fan blade 5.

[0050] 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 variant 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 this process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial tail gas geological storage device with carbon capture function, characterized in that: The invention comprises above-ground equipment and underground equipment, wherein the above-ground equipment comprises an induced draft fan, the induced draft fan comprises an outer shell (1), a coolant tank (2) is fixedly mounted on the top of the outer shell (1), a right end of the coolant tank (2) is connected to a liquid guide tube (3), an inner cavity of the outer shell (1) is fixedly mounted with a motor (4), an output end of the motor (4) is fixedly sleeved with a fan blade (5), the inner cavity of the liquid guide tube (3) is rotatably connected to a rotating shaft (6), a transmission blade (19) located in the liquid guide tube (3) is fixedly mounted on the outer side of the rotating shaft (6), the motor (4) and the rotating shaft (6) are transmission-connected, a coolant ring (9) which is respectively connected to the coolant tank (2) and the liquid guide tube (3) is rotatably provided at the connection between the output end of the motor (4) and the fan blade (5), and the coolant in the coolant tank (2) is driven to circulate through the liquid guide tube (3), the coolant ring (9) and the coolant tank (2) as the transmission blade (19) rotates.

2. The industrial tail gas geological storage device with carbon capture function according to claim 1 is characterized in that: A transmission wheel (7) is fixedly sleeved on the output end of the motor (4) and the rotating shaft (6), and a transmission belt (8) is connected to the surface of the transmission wheel (7).

3. The industrial tail gas geological storage device with carbon capture function according to claim 1 is characterized in that: A liquid inlet pipe (10) and a liquid return pipe (11) which are connected to the liquid guide pipe (3) and the coolant tank (2) are respectively fixedly mounted on the coolant ring (9).

4. The industrial tail gas geological storage device with carbon capture function according to claim 1 is characterized in that: An air box (12) and an inflatable member for inflating the air box (12) are fixedly mounted on the outer shell (1); the inner cavity of the air box (12) is movably connected to a lifting plate (13) for dividing the air box (12) into an upper cavity and a lower cavity; an injection member is arranged in the outer shell (1); the injection member is connected to the air box and the connection point is blocked by the lifting plate (13); a compression member is fixedly mounted at the bottom end of the lifting plate (13).

5. The industrial tail gas geological storage device with carbon capture function according to claim 4 is characterized in that: The compression member comprises a telescopic rod (14) and a spring (15), wherein the telescopic rod (14) is sleeved in the spring (15), and the two ends of the telescopic rod (14) and the spring (15) are respectively connected to the pressure drop plate (13) and the air box (12).

6. The industrial tail gas geological storage device with carbon capture function according to claim 4 is characterized in that: The jet component comprises a connecting pipe (17), the connecting pipe (17) being fixedly mounted on the rear side of the inner cavity of the shell (1), a nozzle (18) facing the fan blade (5) being fixedly mounted on the front end of the connecting pipe (17), and the connecting pipe (17) being connected to the air box (12).

7. The industrial tail gas geological storage device with carbon capture function according to claim 6 is characterized in that: A shielding plate (16) is fixedly mounted on the front side of the lifting plate (13), and the shielding plate (16) shields the connecting pipe (17). When the lifting plate (13) drives the shielding plate (16) to move downward without shielding the connecting pipe (17), compressed gas is sprayed from the nozzle (18) to the fan blade (5) through the connecting pipe (17).

8. The industrial tail gas geological storage device with carbon capture function according to claim 1 is characterized in that: The inflatable component comprises a fixed box (20), the top end of the outer shell (1) is fixedly mounted with a fixed box (20) which is connected to the air box (12), the right end of the rotating shaft (6) is fixedly mounted with a connecting disk (21), the right end of the connecting disk (21) is fixedly mounted with a fixed shaft (22), the inner cavity of the fixed box (20) is movably connected with a movable plate (24), the surface of the fixed shaft (22) is rotatably connected with a connecting rod (23) hinged to the movable plate (24), and as the connecting disk (21) rotates, the connecting rod (23) is driven to move back and forth linearly in the fixed box (20).

9. The industrial tail gas geological storage device with carbon capture function according to claim 8, characterized in that: A one-way air inlet pipe (25) and a one-way air outlet pipe (26) are fixedly mounted on the front end of the fixed box (20), and the rear end of the one-way air outlet pipe (26) is fixedly mounted on the top end of the air box (12).

10. The storage method of the industrial tail gas geological storage device with carbon capture function according to any one of claims 1 to 9, characterized in that: The steps include: The above-ground equipment is used to capture, detect and transport the exhaust gas to the underground equipment for treatment and storage; the above-ground equipment includes industrial exhaust gas output through the exhaust gas capture port, which is then captured by the negative pressure capture smoke pipe and the induced draft fan, and then sent to the gas analyzer through the gradually expanding and contracting positive pressure sonic tube to analyze the composition of the industrial exhaust gas, and then transported to the air flow transmission device, and then input to the underground equipment through the transmission pipeline and gas compression equipment. The industrial exhaust gas in the underground equipment first enters the underground dust interception chamber, and then enters the sulfur dioxide desorption chamber, and after treatment, enters the carbonization and storage chamber group behind, and the small amount of industrial exhaust gas that has not been completely treated is transported to the gas compression equipment again through the mediation chamber for recycling treatment; When the induced draft fan is in operation, the motor (4) drives the fan blades (5) to rotate, and the industrial exhaust gas is sucked in for capture and transportation. At the same time, the motor (4) drives the rotating shaft (6) to rotate through the transmission wheel (7) and the transmission belt (8). When the rotating shaft (6) rotates in the liquid guide tube (3), the coolant in the coolant tank (2) can be drawn out and transported to the coolant ring (9) through the liquid inlet pipe (10), so that the coolant cools the connection position between the output shaft of the motor (4) and the fan blades (5), and then returns to the coolant tank (2) through the liquid return pipe (11) to cool the coolant. When the rotating shaft (6) rotates, the fixed shaft (22) on the connecting plate (21) can be driven to rotate around the axis of the rotating shaft (6), and then the movable plate (24) can be driven to move back and forth in the fixed box (20) through the connecting rod (23), so that the outside air is sucked into the fixed box (20), and then sent into the air box (12) through the one-way air outlet pipe (26), so that the pressure in the air box (12) is continuously increased. When the pressure in the air box (12) is greater than the elasticity of the spring (15), the lifting plate (13) is pushed to move downward, and then the shielding plate (16) is driven to move downward. When the shielding plate (16) completely leaves the connecting pipe (17), the connecting pipe (17) is connected with the space above the lifting plate (13) in the air box (12). At this time, the compressed air enters the nozzle (18) through the connecting pipe (17), and then is sprayed on the fan blades (5) through the nozzle (18), so as to clean the dust on the fan blades (5).

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