Coal-fired flue gas demercuration device

Abstract

The invention provides a coal-fired flue gas demercuration device which comprises a reaction device, a discharging groove is fixedly formed in the top of the reaction device, the reaction device communicates with the discharging groove, a first support is fixedly installed on the outer surface of the left side of the discharging groove, and a first motor is fixedly installed on the inner side of the first support; a second support is fixedly mounted on the right side of the discharging groove, a rolling shaft is movably mounted in the discharging groove, and a third support is rotatably mounted on the inner side of the second support and extends into the discharging groove to be rotatably connected with one end of the rolling shaft. A first connecting rod is fixedly installed at the other end of the rolling shaft and extends out of the discharging groove to be fixedly connected with an output shaft of a first motor, and material grooves are fixedly installed on the outer surface of the rolling shaft and are in a circumferential array shape. The coal-fired flue gas demercuration device has the technical effects that the overall demercuration efficiency of the coal-fired flue gas demercuration device can be improved, and the concentration of a demercuration agent in flue gas is kept relatively stable.

Description

Technical Field

[0001] The invention belongs to the technical field of mercury removal from coal-fired flue gas, and in particular relates to a coal-fired flue gas mercury removal device. Background Art

[0002] Coal-burning flue gas will emit a large amount of harmful gases and heavy metal pollution. Among the heavy metal pollution, mercury pollution is the most serious. Mercury is a highly toxic substance that has serious impacts on the environment and human body. Burning coal in human activities will cause the mercury in the coal to volatilize due to heat and exist in the flue gas in the form of mercury vapor. Coal burning causes huge mercury emissions and easily causes environmental pollution. We must find a way to solve this problem. Studies have shown that the effect of mercury removal from coal before combustion is poor, and more attention is paid to the removal of mercury from flue gas after combustion. At present, the traditional dust removal process and equipment and adsorbent adsorption are commonly used in China to remove mercury from flue gas.

[0003] The existing coal-fired flue gas demercurization device cannot effectively avoid the situation where the concentration of local demercuration agent is too high and the demercuration agent is insufficient in other areas, which will greatly reduce the overall demercuration efficiency and make the concentration of demercuration agent in the coal-fired flue gas unstable, resulting in uneven reaction, so it needs to be improved and optimized. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art and provide a new technical solution for a coal-fired flue gas mercury removal device.

[0005] According to a first aspect of the present invention, a coal-fired flue gas mercury removal device is provided, comprising a reaction device, a material discharge chute is fixedly installed on the top of the reaction device, and the reaction device and the material discharge chute are interconnected, a first bracket is fixedly installed on the left outer surface of the material discharge chute, a first motor is fixedly installed on the inner side of the first bracket, a second bracket is fixedly installed on the right side of the material discharge chute, a roller is movably installed inside the material discharge chute, a third bracket is rotatably installed on the inner side of the second bracket, and the third bracket extends to the inside of the material discharge chute and is rotatably connected to one end of the roller, a first connecting rod is fixedly installed on the other end of the roller, and the first connecting rod extends out of the material discharge chute and is fixedly connected to the output shaft of the first motor, and a material chute is fixedly installed on the outer surface of the roller, and the material chute is in a circular array.

[0006] Optionally, a first annular bracket is fixedly installed on the upper part of the inner wall of the reaction device, an exhaust pipe is fixedly installed on the inner side of the first annular bracket and the exhaust pipe is in a circular array, one end of the exhaust pipe is fixedly connected to the first annular bracket, a first collecting and switching device is fixedly installed on the other end of the exhaust pipe and the exhaust pipe extends to the interior of the first collecting and switching device, an exhaust port is opened on the bottom side of the outer surface of the exhaust pipe and is in a linear array, a connecting pipe is fixedly installed on the outer surface of the first collecting and switching device and one end of the connecting pipe extends to the interior of the first collecting and switching device and the other end passes through the first annular bracket and the reaction device, an air guide mechanism is fixedly installed below the first annular bracket on the inner wall of the reaction device, and the other end of the connecting pipe is fixedly connected to the exhaust mechanism.

[0007] Optionally, the air guide mechanism includes a second annular bracket, which is located below the first annular bracket, an air guide pipe is fixedly installed on the inner side of the second annular bracket and is in a circular array, one end of the air guide pipe is fixedly connected to the second annular bracket, a second collecting adapter device is fixedly installed on the other end of the air guide pipe and the air guide pipe extends to the interior of the second collecting adapter device, an air guide port is opened on the bottom side of the outer surface of the air guide pipe and is in a linear array, a connecting pipe is fixedly installed on the outer surface of the second collecting adapter device and one end of the connecting pipe extends to the interior of the second collecting adapter device and the other end passes through the first annular bracket and the reaction device, and a rotating mechanism is fixedly installed below the second annular bracket at the bottom of the reaction device, and the rotating mechanism is used for rotating discharge.

[0008] Optionally, the exhaust mechanism includes an exhaust fan and a smoke exhaust pipe, the other end of the connecting pipe is fixedly connected to the exhaust fan, and the left side of the exhaust fan is fixedly connected to the smoke exhaust pipe.

[0009] Optionally, a discharge port is fixedly installed below the second annular bracket at the bottom of the reaction device, a fourth bracket is fixedly installed at the bottom of the discharge port, a second motor is fixedly installed on the inner side of the fourth bracket, and a fan blade is fixedly installed at the end of the output shaft of the second motor.

[0010] Optionally, a feed chute is fixedly installed on the top of the reaction device, and the reaction device and the feed chute are connected to each other.

[0011] Optionally, a first collecting adapter is fixedly installed on the other end of the exhaust pipe and the exhaust pipe extends into the first collecting adapter, and a second collecting adapter is fixedly installed on the other end of the air duct and the air duct extends into the second collecting adapter.

[0012] Optionally, a vibration box is fixedly mounted on the outer surface of the reaction device, and a vibrator is fixedly mounted inside the vibration box.

[0013] Optionally, the exhaust ports of the exhaust pipe fixedly connected to the first annular bracket are in a linear array.

[0014] Optionally, the air guide openings of the air guide tube fixedly connected to the second annular support are in a linear array.

[0015] A technical effect of the present invention is:

[0016] In the embodiment of the present application, when the coal-fired flue gas demercuration agent is added to the interior of the reaction device through the feed chute, the first motor is started at this time, and then the output shaft of the first motor will drive the first connecting rod to start rotating. When the first connecting rod rotates, it will drive the roller to rotate between the reaction device and the feed chute. When the roller rotates, it will drive the third bracket to rotate. At the same time, when the roller rotates, it will drive the material troughs in a circular array to rotate. Compared with traditional devices, this device can effectively avoid the situation where the concentration of local demercuration agent is too high and the demercuration agent is insufficient in other areas, thereby improving the overall demercuration efficiency, keeping the concentration of the demercuration agent in the flue gas relatively stable, and making the demercuration agent evenly distributed and reacting in the equipment, thereby reducing wear and damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of a coal-fired flue gas mercury removal device according to one embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a material tank of a coal-fired flue gas mercury removal device according to an embodiment of the present invention;

[0019] Figure 3 A cross-sectional schematic diagram of a coal-fired flue gas mercury removal device according to an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of an exhaust fan of a coal-fired flue gas mercury removal device according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of a second integrated transfer device of a coal-fired flue gas mercury removal device according to an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of a second motor of a coal-fired flue gas mercury removal device according to an embodiment of the present invention;

[0023] Figure 7 The diagram is a schematic diagram of a vibrator of a coal-fired flue gas mercury removal device according to an embodiment of the present invention.

[0024] In the figure: 1. reaction device; 2. material discharge chute; 3. first bracket; 4. first motor; 5. first connecting rod; 6. roller; 7. material chute; 8. second bracket; 9. third bracket; 10. first annular bracket; 11. exhaust pipe; 12. exhaust port; 13. first collective switching device; 14. connecting pipe; 15. exhaust fan; 16. smoke exhaust pipe; 17. second annular bracket; 18. air guide pipe; 19. air guide port; 20. second collective switching device; 21. connecting pipe; 22. material discharge port; 23. fourth bracket; 24. second motor; 25. fan blade; 26. vibration box; 27. vibrator. DETAILED DESCRIPTION

[0025] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0026] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0027] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] like Figures 1 to 7 As shown, an embodiment of the present invention provides a coal-fired flue gas mercury removal device, including a reaction device 1, a feed chute 2 is fixedly installed on the top of the reaction device 1, and the reaction device 1 and the feed chute 2 are interconnected, a first bracket 3 is fixedly installed on the left outer surface of the feed chute 2, a first motor 4 is fixedly installed on the inner side of the first bracket 3, a second bracket 8 is fixedly installed on the right side of the feed chute 2, a roller 6 is movably installed inside the feed chute 2, a third bracket 9 is rotatably installed on the inner side of the second bracket 8, and the third bracket 9 extends to the inside of the feed chute 2 and is rotatably connected to one end of the roller 6, a first connecting rod 5 is fixedly installed on the other end of the roller 6, and the first connecting rod 5 extends out of the feed chute 2 and is fixedly connected to the output shaft of the first motor 4, and a material trough 7 is fixedly installed on the outer surface of the roller 6, and the material trough 7 is in a circular array.

[0031] When the staff needs to add the coal flue gas mercury removal agent into the reaction device 1 through the feed chute 2, the first motor 4 is started, and then the output shaft of the first motor 4 will drive the first connecting rod 5 to start rotating. When the first connecting rod 5 rotates, it will drive the roller 6 to rotate between the reaction device 1 and the feed chute 2. When the roller 6 rotates, it will drive the third bracket 9 to rotate. At the same time, when the roller 6 rotates, it will drive the material trough 7 in a circular array to rotate.

[0032] When the coal-fired flue gas demercuration agent is added into the reaction device 1 through the material discharge chute 2, the first motor 4 is started at this time, and then the output shaft of the first motor 4 will drive the first connecting rod 5 to start rotating. When the first connecting rod 5 rotates, it will drive the roller 6 to rotate between the reaction device 1 and the material discharge chute 2. When the roller 6 rotates, it will drive the third bracket 9 to rotate. At the same time, when the roller 6 rotates, it will drive the material trough 7 in a circular array to rotate. Compared with the traditional device, this device can effectively avoid the situation where the concentration of local demercuration agent is too high and the demercuration agent is insufficient in other areas, thereby improving the overall demercuration efficiency, keeping the concentration of the demercuration agent in the flue gas relatively stable, and making the demercuration agent evenly distributed and reacted in the device, thereby reducing the wear and damage of the equipment.

[0033] Among them, a first annular bracket 10 is fixedly installed on the upper part of the inner wall of the reaction device 1, an exhaust pipe 11 is fixedly installed on the inner side of the first annular bracket 10 and the exhaust pipe 11 is in a circular array, one end of the exhaust pipe 11 is fixedly connected to the first annular bracket 10, a first collecting and switching device 13 is fixedly installed on the other end of the exhaust pipe 11 and the exhaust pipe 11 extends to the inside of the first collecting and switching device 13, an exhaust port 12 is opened on the bottom side of the outer surface of the exhaust pipe 11 and is in a linear array, a connecting pipe 14 is fixedly installed on the outer surface of the first collecting and switching device 13 and one end of the connecting pipe 14 extends to the inside of the first collecting and switching device 13 and the other end passes through the first annular bracket 10 and the reaction device 1, an air guide mechanism is fixedly installed below the first annular bracket 10 on the inner wall of the reaction device 1, and the other end of the connecting pipe 14 is fixedly connected to the exhaust mechanism.

[0034] When the gas guide mechanism introduces the coal-fired flue gas into the interior of the reaction device 1, the coal-fired flue gas demercuration agent added from the discharge chute 2 first reacts with the coal-fired flue gas guided by the gas guide mechanism, and then the exhaust mechanism is started to extract air, and then a certain vacuum degree will be formed in the connecting pipe 14, so that the reacted coal-fired flue gas is demercured, and then it will pass through the exhaust port 12 and the exhaust pipe 11 into the first collecting transfer device 13, and finally be discharged by the exhaust mechanism connected to the connecting pipe 14.

[0035] By starting the exhaust mechanism to draw air, a certain vacuum degree will be formed in the connecting pipe 14, so that the coal-fired flue gas after the reaction can be demercured, and then it will enter the first collection and transfer device 13 through the exhaust port 12 and the exhaust pipe 11, and finally be discharged by the exhaust mechanism connected to the connecting pipe 14. Compared with the traditional device, this device can make the solid particles be discharged smoothly under the action of gravity, reduce the deposition of particles at the discharge port, ensure the smooth flow of the exhaust gas channel, and reduce the frequency and difficulty of equipment maintenance.

[0036] Among them, the gas guide mechanism includes a second annular bracket 17, which is located below the first annular bracket 10, and an air guide pipe 18 is fixedly installed on the inner side of the second annular bracket 17 and is in a circular array. One end of the air guide pipe 18 is fixedly connected to the second annular bracket 17, and the other end of the air guide pipe 18 is fixedly installed with a second collection adapter device 20 and extends to the inside of the second collection adapter device 20. An air guide port 19 is opened on the bottom side of the outer surface of the air guide pipe 18 and is in a linear array. A connecting pipe 21 is fixedly installed on the outer surface of the second collection adapter device 20 and one end of the connecting pipe 21 extends to the inside of the second collection adapter device 20, and the other end passes through the first annular bracket 10 and the reaction device 1. A rotating mechanism is fixedly installed below the second annular bracket 17 at the bottom of the reaction device 1, and the rotating mechanism is used for rotating discharge.

[0037] After the connecting pipe 21 is connected to the coal-fired flue gas pipeline after dust removal, the coal-fired flue gas will enter the second collecting and switching device 20 through the connecting pipe 21, and then be introduced into the air duct 18 connected thereto by the second collecting and switching device 20, and then be evenly introduced into the inner side of the reaction device 1 through the air duct port 19 opened on the bottom side of the air duct 18.

[0038] It enters the second collecting and switching device 20 through the connecting pipe 21, and then is introduced into the air duct 18 connected thereto by the second collecting and switching device 20, and then is evenly introduced into the inner side of the reaction device 1 through the air port 19 opened at the bottom side of the air duct 18. Compared with the traditional device, this device can make the coal-fired flue gas demercurization agent react evenly with the coal-fired flue gas from top to bottom, and reduces equipment failure and maintenance costs caused by the entry of foreign matter, and also enhances the emission power of the coal-fired flue gas.

[0039] The exhaust mechanism includes an exhaust fan 15 and a smoke exhaust pipe 16 . The other end of the connecting pipe 14 is fixedly connected to the exhaust fan, and the left side of the exhaust fan 15 is fixedly connected to the smoke exhaust pipe 16 .

[0040] One end of the exhaust fan 15 is fixedly connected to the exhaust pipe 16 and the other end is fixedly connected to the connecting pipe 14, so that not only the exhaust gas can be discharged to the outside, but also back-blowing can be started to clear the blockage when the exhaust port 12 is blocked by the coal-fired flue gas demercuration agent.

[0041] Among them, a discharge port 22 is fixedly installed below the second annular bracket 17 at the bottom of the reaction device 1, a fourth bracket 23 is fixedly installed at the bottom of the discharge port 22, a second motor 24 is fixedly installed on the inner side of the fourth bracket 23, and a fan blade 25 is fixedly installed at the end of the output shaft of the second motor 24.

[0042] By starting the second motor 24, the output shaft of the second motor 24 will drive the fan blades 25 to start rotating, so that the blowing force of the fan blades 25 can form a dynamic continuous adsorption process between the coal-fired flue gas and the coal-fired flue gas demercuration agent.

[0043] A feed chute 2 is fixedly installed on the top of the reaction device 1, and the reaction device 1 and the feed chute 2 are connected to each other.

[0044] The reaction device 1 and the feed chute 2 are interconnected, so that it is more convenient for the staff to add the coal-fired flue gas mercury removal agent into the reaction device 1, thereby improving the work efficiency.

[0045] Among them, the other end of the exhaust pipe 11 is fixedly installed with a first collecting adapter 13 and the exhaust pipe 11 extends into the first collecting adapter 13, and the other end of the air duct 18 is fixedly installed with a second collecting adapter 20 and the air duct 18 extends into the second collecting adapter 20.

[0046] The design of the first collective adapter device 13 and the second collective adapter device 20 can improve the exhaust and air guiding efficiency and reduce excessive cost investment.

[0047] A vibration box 26 is fixedly installed on the outer surface of the reaction device 1 , and a vibrator 27 is fixedly installed inside the vibration box 26 .

[0048] The vibrator 27 is fixedly installed inside the vibration box 26, which can effectively make the coal flue gas demercuration agent fall evenly, shake off the coal flue gas demercuration agent on the air intake guide mechanism and the exhaust port 12, and assist the reaction between the coal flue gas demercuration agent and the coal flue gas.

[0049] Working principle and usage process:

[0050] When the staff needs to add the coal flue gas mercury removal agent into the reaction device 1 through the feed chute 2, the first motor 4 is started, and then the output shaft of the first motor 4 will drive the first connecting rod 5 to start rotating. When the first connecting rod 5 rotates, it will drive the roller 6 to rotate between the reaction device 1 and the feed chute 2. When the roller 6 rotates, it will drive the third bracket 9 to rotate. At the same time, when the roller 6 rotates, it will drive the material trough 7 in a circular array to rotate.

[0051] When the gas guide mechanism introduces the coal-fired flue gas into the interior of the reaction device 1, the coal-fired flue gas demercuration agent added from the discharge chute 2 first reacts with the coal-fired flue gas guided by the gas guide mechanism, and then the exhaust mechanism is started to extract air, and then a certain vacuum degree will be formed in the connecting pipe 14, so that the reacted coal-fired flue gas is demercured, and then it will pass through the exhaust port 12 and the exhaust pipe 11 into the first collecting transfer device 13, and finally be discharged by the exhaust mechanism connected to the connecting pipe 14.

[0052] After the connecting pipe 21 is connected to the coal-fired flue gas pipeline after dust removal, the coal-fired flue gas will enter the second collecting and switching device 20 through the connecting pipe 21, and then be introduced into the air duct 18 connected thereto by the second collecting and switching device 20, and then be evenly introduced into the inner side of the reaction device 1 through the air duct port 19 opened on the bottom side of the air duct 18.

[0053] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A coal-fired flue gas mercury removal device, characterized in that: It comprises a reaction device, a feeding trough is fixedly installed on the top of the reaction device, and the reaction device and the feeding trough are interconnected; A first bracket is fixedly installed on the left outer surface of the material discharge trough, a first motor is fixedly installed on the inner side of the first bracket, a second bracket is fixedly installed on the right side of the material discharge trough, a roller is movably installed inside the material discharge trough, a third bracket is rotatably installed on the inner side of the second bracket and the third bracket extends to the inside of the material discharge trough and is rotatably connected to one end of the roller, a first connecting rod is fixedly installed on the other end of the roller and the first connecting rod extends out of the material discharge trough and is fixedly connected to the output shaft of the first motor, a material trough is fixedly installed on the outer surface of the roller and the material trough is in a circular array.

2. The coal-fired flue gas mercury removal device according to claim 1, characterized in that: A first annular bracket is fixedly installed on the upper part of the inner wall of the reaction device, an exhaust pipe is fixedly installed on the inner side of the first annular bracket and the exhaust pipe is in a circular array, one end of the exhaust pipe is fixedly connected to the first annular bracket, a first collecting and switching device is fixedly installed on the other end of the exhaust pipe and the exhaust pipe extends to the inside of the first collecting and switching device, an exhaust port is opened on the bottom side of the outer surface of the exhaust pipe, a connecting pipe is fixedly installed on the outer surface of the first collecting and switching device and one end of the connecting pipe extends to the inside of the first collecting and switching device and the other end passes through the first annular bracket and the reaction device, an air guide mechanism is fixedly installed below the first annular bracket on the inner wall of the reaction device, and the other end of the connecting pipe is fixedly connected to the exhaust mechanism.

3. The coal-fired flue gas mercury removal device according to claim 2, characterized in that: The air guide mechanism includes a second annular bracket, which is located below the first annular bracket. An air guide pipe is fixedly installed on the inner side of the second annular bracket and is in a circular array. One end of the air guide pipe is fixedly connected to the second annular bracket, and a second collecting and switching device is fixedly installed on the other end of the air guide pipe and extends to the inside of the second collecting and switching device. An air guide port is opened on the bottom side of the outer surface of the air guide pipe, and a connecting pipe is fixedly installed on the outer surface of the second collecting and switching device, and one end of the connecting pipe extends to the inside of the second collecting and switching device and the other end passes through the first annular bracket and the reaction device. A rotating mechanism is fixedly installed below the second annular bracket at the bottom of the reaction device, and the rotating mechanism is used for rotating and discharging.

4. The coal-fired flue gas mercury removal device according to claim 2, characterized in that: The exhaust mechanism comprises an exhaust fan smoke exhaust pipe, the other end of the connecting pipe is fixedly connected to the exhaust fan, and the left side of the exhaust fan is fixedly connected to the smoke exhaust pipe.

5. The coal-fired flue gas mercury removal device according to claim 3, characterized in that: A discharge port is fixedly installed below the second annular support at the bottom of the reaction device, and a fourth support is fixedly installed at the bottom of the discharge port.

6. The coal-fired flue gas mercury removal device according to claim 5, characterized in that: A second motor is fixedly mounted on the inner side of the fourth bracket, and a fan blade is fixedly mounted on the end of the output shaft of the second motor.

7. The coal-fired flue gas mercury removal device according to claim 3, characterized in that: A first collective adapter is fixedly installed on the other end of the exhaust pipe and the exhaust pipe extends into the first collective adapter. A second collective adapter is fixedly installed on the other end of the air guide pipe and the air guide pipe extends into the second collective adapter.

8. The coal-fired flue gas mercury removal device according to claim 1, characterized in that: A vibration box is fixedly installed on the outer surface of the reaction device, and a vibrator is fixedly installed inside the vibration box.

9. The coal-fired flue gas mercury removal device according to claim 2, characterized in that: The exhaust ports of the exhaust pipe fixedly connected to the first annular bracket are in a linear array shape.

10. The coal-fired flue gas mercury removal device according to claim 3, characterized in that: The air guide openings of the air guide pipe fixedly connected to the second annular support are in a linear array shape.

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