A boiler flue gas filtration and separation treatment device

Abstract

This invention relates to the field of boiler flue gas treatment technology, and more particularly to a boiler flue gas filtration and separation treatment device, comprising: a fixed tank, with an air inlet pipe fixedly connected and connected to the lower side of the fixed tank, and an air outlet shell fixedly connected and connected to the upper side of the fixed tank; a packing component disposed within the fixed tank; a bolt bracket fixedly connected within the fixed tank; a fixed cylinder fixedly connected to the bolt bracket; a liquid inlet pipe fixedly connected to the fixed tank and the fixed cylinder; and an atomizing nozzle fixedly connected within the fixed cylinder and connected to the liquid inlet pipe, wherein the nozzle orientation of the atomizing nozzle is the same as the flow direction of the flue gas within the fixed tank. This invention redesigns the nozzle installation position so that the nozzle orientation is consistent with the flue gas movement direction. This effectively reduces the direct impact of particulate matter on the nozzle, optimizes the spray coverage area, improves flue gas treatment efficiency, thereby extending the equipment's service life and reducing maintenance frequency and operating costs.

Description

Technical Field

[0001] This invention relates to the field of boiler flue gas treatment technology, and in particular to a boiler flue gas filtration and separation treatment device. Background Technology

[0002] Rapid industrialization has led to a dramatic increase in energy demand. Boilers, as crucial energy supply equipment in industrial production, are widely used in power generation, heating, chemical, and steel industries. With the increasing number and frequency of boiler use, the amount of flue gas emitted has also risen significantly. This is because boiler flue gas contains large amounts of particulate matter, sulfur dioxide (SO2), and nitrogen oxides (NOx). X Boiler flue gas contains other harmful substances, therefore it needs to be treated.

[0003] Currently, the main methods for treating boiler flue gas include electrostatic precipitators, bag filters, and wet desulfurization. Among these, spray towers, as an important waste gas treatment device in wet desulfurization, have been widely used in the field of boiler flue gas purification.

[0004] The spray tower mainly consists of a tower body, a packing layer, nozzles, and a demister. During operation, flue gas enters the tower from the bottom. At the same time, the nozzles atomize the absorbent liquid and spray it evenly onto the packing layer. The packing layer increases the contact area between the gas and liquid phases, allowing particulate matter and harmful gases in the flue gas to come into contact with the absorbent liquid and undergo physical adsorption or chemical reaction, thereby removing pollutants. Finally, the purified gas passes through the demister to remove entrained droplets and is discharged from the top of the tower or enters subsequent processes.

[0005] In practical applications, because the direction of flue gas movement is opposite to the direction of the nozzle, particulate matter in the flue gas (especially fine particles and sticky substances) can easily come into direct contact with the nozzle and its surrounding area, causing nozzle blockage. This not only leads to a decrease in spraying effect, but also affects the overall service life of the equipment, increases maintenance frequency and operating costs. Summary of the Invention

[0006] In order to solve the problems mentioned in the background art, the present invention proposes a boiler flue gas filtration and separation treatment device.

[0007] The technical solution of the present invention is: a boiler flue gas filtration and separation treatment device, comprising:

[0008] A fixed tank, wherein an air inlet pipe is fixedly connected to and connected to the lower side of the fixed tank, and an air outlet shell is fixedly connected to and connected to the upper side of the fixed tank.

[0009] Packing components are disposed inside the fixed tank;

[0010] A bolt bracket is fixed inside the fixed tank and located below the packing element;

[0011] A fixing cylinder is fixedly connected to the bolt bracket;

[0012] The liquid inlet pipe is fixedly connected to the fixed tank and the fixed cylinder;

[0013] An atomizing nozzle is fixed inside the fixed cylinder and connected to the liquid inlet pipe. The nozzle of the atomizing nozzle faces the same direction as the flow of flue gas inside the fixed cylinder.

[0014] Furthermore, the packing element includes:

[0015] The first fixing ring is fixed inside the fixing tank and located above the bolt bracket;

[0016] The second fixing ring is fixed to the fixing cylinder and is located below the first fixing ring. A plurality of annular corrugated plates are detachably connected between the second fixing ring and the first fixing ring. The annular corrugated plates are provided with a first through hole and a second through hole arranged in an annular array and uniformly distributed.

[0017] Furthermore, the second through hole is located at the crest of the adjacent annular corrugated plate and is used to transport gas, while the first through hole is located at the trough of the adjacent annular corrugated plate and is used to transport absorbent liquid. The distribution positions of all the second through holes and the first through holes on different annular corrugated plates are inconsistent.

[0018] Furthermore, a blocking member is fixedly connected inside the fixed tank, located above the first fixed ring, and the blocking member is fixedly connected to a uniformly distributed guide shell.

[0019] Furthermore, the blocking member is composed of an arc-shaped portion and an inclined portion. The evenly distributed guide shells are all located on the lower side of the arc-shaped portion and the inclined portion of the blocking member. The spray range of the atomizing nozzle is annular when projected onto the horizontal plane, and the outer diameter of the spray range projection of the atomizing nozzle on the horizontal plane is smaller than the inner diameter of the fixed tank. The guide shell is located within the spray range of the atomizing nozzle.

[0020] Furthermore, the guide shell is fixedly connected to an inclined guide shell, which is used to guide the absorbent liquid sprayed from the atomizing nozzle. The guide shell is composed of two trapezoidal shells of different sizes, and the adjacent sides of the two trapezoidal shells have the same length.

[0021] Furthermore, it also includes:

[0022] The evenly distributed connecting frames are all fixed inside the fixed tank. The evenly distributed connecting frames are located between the upper annular corrugated plate and the blocking member. The connecting frames are fixed with a baffle plate, which is located above the upper annular corrugated plate and is inclined.

[0023] Furthermore, the cross-section of the baffle is [-shaped] to guide the gas, and the width of the baffle gradually increases from the side near the liquid inlet pipe to the side away from the liquid inlet pipe to increase the coverage area of ​​the gas.

[0024] Furthermore, several liquid guiding shells are fixedly connected to the lower side of the baffle plate. All the liquid guiding shells on the same baffle plate are fixedly connected together and connected to a liquid guiding pipe. The liquid guiding pipe passes through the fixed cylinder and is connected to the lower part of the fixed tank.

[0025] Furthermore, the liquid guiding shell is composed of a V-shaped shell and a fixing plate, and the connection between the liquid guiding tube and the liquid guiding shell is located at the lower part of the V-shaped shell on the liquid guiding shell.

[0026] The beneficial effects of this invention are as follows: 1. To solve the problem that the nozzles in existing spray towers are aligned with the direction of flue gas movement due to their installation position, causing particulate matter in the flue gas to directly impact the nozzles and their surrounding areas, thus causing nozzle blockage, this invention redesigns the installation position of the nozzles so that the nozzle orientation is consistent with the direction of flue gas movement. This effectively reduces the direct impact of particulate matter on the nozzles, optimizes the spray coverage, improves flue gas treatment efficiency, and thus extends the service life of the equipment, reduces maintenance frequency and operating costs.

[0027] 2. When the absorbent flows on the annular corrugated plate, the positions of the first and second through holes are changed so that the absorbent can contact all the annular corrugated plates in a short time. This increases the contact area and reaction time between the absorbent and the harmful substances in the flue gas, improves the pollutant removal efficiency, and accelerates the upward flow of the flue gas. This creates a turbulent effect between the flue gas and the absorbent, increases the contact area and contact time between the gas and liquid phases, and thus improves the absorption efficiency of pollutants.

[0028] 3. As the flue gas moves upward through all the annular corrugated plates, it achieves the effect of graded treatment of the flue gas. After the flue gas flows out through all the second through holes on the upper annular corrugated plate, the flue gas comes into contact with the absorbent liquid sprayed by the atomizing nozzle again, further enhancing the efficiency of flue gas treatment.

[0029] 4. During the flue gas treatment process, the absorbent liquid sprayed by the atomizing nozzle drives the flue gas towards the blocking component, increasing the contact time between the flue gas and the absorbent liquid on the lower side of the blocking component, thereby improving the absorption and removal efficiency of pollutants in the flue gas. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0032] Figure 3 This is a three-dimensional structural cross-sectional view of the fixed tank of the present invention;

[0033] Figure 4 This is a top view of the three-dimensional structure of the blocking component of the present invention;

[0034] Figure 5 This is a bottom view of the three-dimensional structure of the second fixing ring and the annular corrugated plate of the present invention;

[0035] Figure 6 This is a three-dimensional structural cross-sectional view of the first fixing ring of the present invention;

[0036] Figure 7 This is a three-dimensional structural cross-sectional view of the second fixing ring and the annular corrugated plate of the present invention;

[0037] Figure 8 This is an exploded three-dimensional view of the first fixing ring, the second fixing ring, and the annular corrugated plate of the present invention.

[0038] Figure 9 This is a three-dimensional structural diagram of the spray range of the atomizing nozzle of the present invention;

[0039] Figure 10 This is a three-dimensional structural diagram showing the positional relationship between the connecting frame and the baffle plate of the present invention;

[0040] Figure 11 This is a three-dimensional structural diagram illustrating the positional relationship between the guide shell and the guide housing of the present invention;

[0041] Figure 12 This is a three-dimensional structural cross-sectional view of the guide shell, guide housing, and baffle plate of the present invention.

[0042] The markings in the diagram are as follows: 1-Fixed tank, 2-Inlet pipe, 3-Outlet shell, 4-Packaging component, 401-First fixing ring, 402-Second fixing ring, 403-Annular corrugated plate, 404-First through hole, 405-Second through hole, 5-Bolt bracket, 6-Fixed cylinder, 7-Liquid inlet pipe, 8-Atomizing nozzle, 9-Blocking component, 10-Guide shell, 11-Guide shell, 12-Connecting frame, 13-Baffle plate, 14-Liquid guiding shell, 15-Liquid guiding pipe. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] To address the problem of nozzle blockage caused by particulate matter directly contacting the nozzles and surrounding area due to their installation position being aligned with the direction of flue gas movement in existing spray towers, this invention adjusts the nozzle installation position so that the nozzle orientation is consistent with the direction of flue gas movement. This effectively reduces the direct impact of particulate matter on the nozzles, optimizes the spray coverage, improves the efficiency of flue gas treatment, extends the service life of the equipment, and reduces maintenance frequency and operating costs.

[0045] Example 1: A boiler flue gas filtration and separation treatment device, such as Figures 1-6 , Figure 9 and Figure 10 As shown, it includes: a fixed tank 1, with an air inlet pipe 2 fixedly connected and connected to the lower side of the fixed tank 1, and an air outlet shell 3 fixedly connected and connected to the fixed tank 1; a packing element 4, disposed inside the fixed tank 1; a bolt bracket 5, fixedly connected to the fixed tank 1 and located below the packing element 4; a fixed cylinder 6, fixedly connected to the bolt bracket 5; a liquid inlet pipe 7, fixedly connected to the fixed tank 1 and the fixed cylinder 6; and an atomizing nozzle 8, fixedly connected to the fixed cylinder 6 and connected to the liquid inlet pipe 7. The nozzle of the atomizing nozzle 8 faces the same direction as the flow direction of the flue gas inside the fixed tank 1, in order to reduce the contact between the flue gas and the atomizing nozzle 8.

[0046] In the above scheme, during use, the atomizing nozzle 8 sprays the absorbent liquid from bottom to top (the spray range of the absorbent liquid is an inverted umbrella shape with an outward expansion). The absorbent liquid falls onto the packing member 4 under the action of gravity, and the packing member 4 guides the absorbent liquid to facilitate the treatment of flue gas. By changing the spray position of the atomizing nozzle 8, the direct impact of flue gas on the atomizing nozzle 8 is reduced. In the process of using existing spray towers, a liquid circulation device is usually installed at the bottom of the fixed tank 1. The liquid circulation device is mainly used to process the liquid at the bottom of the fixed tank 1 and then reintroduce it into the liquid inlet pipe 7. In order to prevent the liquid level at the bottom of the fixed tank 1 from exceeding the air inlet pipe 2, an overflow valve is installed at the bottom of the fixed tank 1. Since the parts involving the above functions are existing equipment, they are not shown in this application. However, this does not mean that the present invention cannot install such equipment. The same applies to the demister.

[0047] like Figures 2-10As shown, the packing component 4 includes: a first fixing ring 401, fixed inside the fixed tank 1 and located above the bolt bracket 5; a second fixing ring 402, fixed to the fixed cylinder 6, the second fixing ring 402 being located below the first fixing ring 401; a plurality of annular corrugated plates 403 (the cross-section of the annular corrugated plates 403 is wavy) are detachably connected between the second fixing ring 402 and the first fixing ring 401; the annular corrugated plates 403 are provided with annular arrays of uniformly distributed first through holes 404 and second through holes 405; the second through holes 405 are located at the crests of adjacent annular corrugated plates 403 and are used to transport gas; the first through holes 404 are located at the troughs of adjacent annular corrugated plates 403 and are used to transport absorbent liquid; the distribution positions of all the second through holes 405 and first through holes 404 on different annular corrugated plates 403 are inconsistent.

[0048] In the above scheme, the material of the annular corrugated plate 403 is the same as that of the existing filler layer. There are three annular corrugated plates 403 in this invention. The quantity here is only an example and not a limitation. In use, the number of annular corrugated plates 403 can be adjusted according to the actual situation. The detachable connection between the three annular corrugated plates 403 and the first fixing ring 401 and the second fixing ring 402 is used to facilitate the replacement of the annular corrugated plates 403. The effect of the trough is to enable the absorbent liquid to contact all the annular corrugated plates 403 in a short time, thereby increasing the contact area and reaction time between the absorbent liquid and the harmful substances in the flue gas, and improving the pollutant removal efficiency. The effect of the peak is to accelerate the upward flow of the flue gas, so that a turbulent effect is formed between the flue gas and the absorbent liquid, increasing the contact area and contact time between the gas and liquid phases, thereby improving the pollutant absorption efficiency. All the second through holes 405 and the first through holes 404 on several of the same annular corrugated plates 403 are staggered.

[0049] like Figures 3-6 and Figures 9-11 As shown, a blocking member 9 is fixedly connected inside the fixed tank 1, located above the first fixed ring 401. The blocking member 9 is fixedly connected with uniformly distributed guide shells 10. The blocking member 9 consists of an arc-shaped part and an inclined part. The uniformly distributed guide shells 10 are all located on the lower side of the arc-shaped part and on the inclined part of the blocking member 9. The spray range of the atomizing nozzle 8 is annular when projected onto the horizontal plane, and the outer diameter of the spray range projection of the atomizing nozzle 8 on the horizontal plane is smaller than the inner diameter of the fixed tank 1. The guide shells 10 are located within the spray range of the atomizing nozzle 8. The upper part of the guide shell 10 is located above the spray range of the atomizing nozzle 8, and the lower part of the guide shell 10 is located below the spray range of the atomizing nozzle 8.

[0050] In the above scheme, the absorbent sprayed by the atomizing nozzle 8 guides the flue gas toward the blocking member 9, increasing the contact time between the flue gas and the absorbent sprayed on the lower side of the blocking member 9, thereby improving the absorption and removal efficiency of pollutants in the flue gas. The guide shell 10 is used to guide the flue gas blocked by the blocking member 9 back to the area below the absorbent sprayed by the atomizing nozzle 8, so that the flue gas can re-contact the absorbent sprayed by the atomizing nozzle 8 to achieve further treatment of the flue gas. The arc-shaped part on the blocking member 9 is used to guide the absorbent sprayed by the atomizing nozzle 8.

[0051] like Figure 11 and Figure 12 As shown, the guide shell 10 is fixedly connected to an inclined guide shell 11. The guide shell 11 is used to guide the absorbent liquid sprayed from the atomizing nozzle 8. The guide shell 11 is composed of two trapezoidal shells of different sizes, and the adjacent sides of the two trapezoidal shells have the same length.

[0052] In the above scheme, the air intake of the trapezoidal shell on the side of the guide shell 11 facing the atomizing nozzle 8 is greater than the air intake of the trapezoidal shell on the side of the guide shell 11 facing away from the atomizing nozzle 8. The guide shell 11 is used to allow the absorbent liquid to pass through the adjacent guide shell 10.

[0053] Working principle: Before treating the boiler flue gas (hereinafter referred to as flue gas), the operator connects the flue gas outlet to the inlet pipe 2, then connects the right side of the outlet shell 3 to the external exhaust equipment, and finally connects the liquid inlet pipe 7 to the liquid delivery pipeline (the liquid delivery pipeline here delivers absorbent liquid, and the specific composition of the absorbent liquid is adjusted by the operator according to the specific application scenario). In this way, the preparation work before treating the flue gas is completed.

[0054] After completing the preparations for flue gas treatment, the staff injects absorbent liquid into the inlet pipe 7 through the inlet pipe. The inlet pipe 7 guides the absorbent liquid to the atomizing nozzle 8 and sprays it out. The absorbent liquid sprayed through the atomizing nozzle 8 forms a mist film in the middle of the fixed tank 1. After being sprayed out of the atomizing nozzle 8, the absorbent liquid falls downward to the annular corrugated plate 403 located on the upper side. After falling into the annular corrugated plate 403 located on the upper side, the absorbent liquid slides freely under the action of its wavy cross section (during the process of the atomizing nozzle 8 spraying the absorbent liquid, some absorbent liquid enters the opposite side of all guide shells 11 and is sprayed out from the opposite side of all guide shells 11, thereby achieving the guidance of the absorbent liquid).

[0055] The upper annular corrugated plate 403 guides the absorbent liquid downwards through all its first through holes 404 until it falls onto the middle annular corrugated plate 403. The absorbent liquid falling onto the middle annular corrugated plate 403 continues to flow downwards along all its first through holes 404 until it flows onto the lower annular corrugated plate 403. Then it flows downwards through all its first through holes 404 until it falls to the bottom of the fixed tank 1. Under the action of the first through holes 404 being located at the troughs of adjacent annular corrugated plates 403, the absorbent liquid is guided, allowing it to fall quickly into the lower annular corrugated plate 403. This allows the absorbent liquid to contact all the annular corrugated plates 403 in a short time, thereby increasing the contact area and reaction time between the absorbent liquid and the harmful substances in the flue gas, and improving the pollutant removal efficiency.

[0056] After the absorbent liquid is present on all the annular corrugated plates 403, the operator activates the external extraction device on the right side of the outlet shell 3 via the control terminal. The flue gas is then guided into the fixed tank 1 through the inlet pipe 2. Under the action of the external extraction device on the right side of the outlet shell 3 drawing gas from the fixed tank 1, the flue gas in the lower part of the fixed tank 1 flows upward. Some of the upward-flowing flue gas preferentially flows through the lower annular corrugated plates 403 and upwards through all the second through holes 405 on the lower annular corrugated plates 403 (the second through holes 405 are located on the crests of adjacent annular corrugated plates 403, accelerating the upward flow of the flue gas). The upward flow velocity creates a turbulent effect between the flue gas and the absorbent liquid, increasing the contact area and contact time between the gas and liquid phases, thereby improving the absorption efficiency of pollutants. This continues until the flue gas flows between the two lower annular corrugated plates 403. When the flue gas comes into contact with the absorbent liquid on the annular corrugated plates 403, the particulate matter and harmful gases in the flue gas come into contact with the absorbent liquid and undergo physical adsorption or chemical reaction, thereby achieving the removal of pollutants. As the flue gas flows upward, it will pass through all the second through holes 405 on the middle annular corrugated plate 403 and all the second through holes 405 on the upper annular corrugated plate 403.

[0057] As the flue gas moves upward through all the annular corrugated plates 403, it achieves the effect of graded treatment of the flue gas. After the flue gas flows out through all the second through holes 405 on the upper annular corrugated plate 403, the flue gas comes into contact with the mist film formed by the atomizing nozzle 8 again, further enhancing the efficiency of flue gas treatment.

[0058] Another portion of the flue gas in the lower part of the fixed tank 1 moves upward along the fixed cylinder 6. When this other portion of the flue gas moves upward and comes into contact with the absorbent liquid sprayed by the atomizing nozzle 8, it is carried towards the inner wall of the fixed tank 1. This causes the other portion of the flue gas to be sent into the lower part of the blocking member 9 by the absorbent liquid sprayed by the atomizing nozzle 8. After the flue gas stays in the blocking member 9, it enters the upper side of all the guide shells 10 and is sprayed out from the lower side of all the guide shells 10. Since the lower side of the blocking member 9 is the limit position of the absorbent liquid sprayed by the atomizing nozzle 8, the amount of absorbent liquid on the lower side of the blocking member 9 is more than that in other positions. Therefore, the flue gas is guided to the lower side of the blocking member 9 to increase the contact time between the flue gas and the absorbent liquid, thereby improving the absorption and removal efficiency of pollutants in the flue gas.

[0059] The treated gas passes through the mist film formed by the atomizing nozzle 8 and is finally discharged from the gas outlet shell 3.

[0060] When flue gas treatment is no longer required, simply turn off the external exhaust equipment, shut off the liquid delivery pipeline, and stop the gas supply to the flue gas outlet.

[0061] Example 2: Based on Example 1, such as Figures 9-12 As shown, it also includes: evenly distributed connecting frames 12, all fixed inside the fixed tank 1. The evenly distributed connecting frames 12 are located between the upper annular corrugated plate 403 and the blocking member 9. The connecting frames 12 are fixedly connected to a baffle plate 13. The baffle plate 13 is located above the upper annular corrugated plate 403 and is inclined. The cross section of the baffle plate 13 is [-shaped], which is used to guide the gas. The width of the baffle plate 13 gradually increases from the side near the liquid inlet pipe 7 to the side away from the liquid inlet pipe 7 (the width of the baffle plate 13 gradually increases from bottom to top), which is used to increase the coverage area of ​​the gas. Several liquid guide shells 14 are fixedly connected to the lower side inside the baffle plate 13. All the liquid guide shells 14 on the same baffle plate 13 are fixedly connected and connected to a liquid guide pipe 15. The liquid guide pipe 15 passes through the fixed cylinder 6 and is connected to the lower part of the fixed tank 1. The liquid guide shell 14 is composed of a V-shaped shell and a fixed plate. The connection between the liquid guide pipe 15 and the liquid guide shell 14 is located at the lower part of the V-shaped shell on the liquid guide shell 14.

[0062] In the above scheme, the lower side of the liquid guide pipe 15 can be connected between multiple annular corrugated plates 403 so that the absorbent liquid can flow back into the filling layer or collection area through the liquid guide shell 14 and the liquid guide pipe 15, ensuring that it fully participates in the reaction process and improving the recycling efficiency of the absorbent liquid. The middle part of the connecting frame 12 is hollow, which is used to ensure that the baffle plate 13 is fixed while reducing the contact area with the flue gas.

[0063] Working principle: During the flue gas treatment process, the flue gas moves upward through all the annular corrugated plates 403 to below the mist film sprayed by the atomizing nozzle 8. Under the action of the baffle plate 13 located above the annular corrugated plates 403, the flue gas is blocked, causing the flue gas to move along the inner side of the baffle plate 13 towards the blocking member 9. The flue gas guided by the baffle plate 13 enters the blocking member 9 and comes into contact with the surrounding absorbent liquid, increasing the contact time and area between the absorbent liquid and the flue gas, further enhancing the absorption and removal efficiency of pollutants. The baffle plate 13 also prevents the flue gas below from carrying the absorbent liquid upward and splashing, thereby reducing the ineffective loss of absorbent liquid and lowering operating costs. The subsequent gas flows upward through the mist film.

[0064] The absorbent liquid carried by the flue gas is blocked by the baffle plate 13 and eventually stays on the inner side of the baffle plate 13. Under the action of gravity, the absorbent liquid on the lower side of the baffle plate 13 flows into the liquid guide shell 14, and then the liquid guide shell 14 guides the absorbent liquid into the liquid guide pipe 15. Finally, it flows out from the lower side of the liquid guide pipe 15 to facilitate subsequent recycling.

[0065] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the invention. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention.

Claims

1. A boiler flue gas filtration and separation treatment device, characterized in that, include: A fixed tank (1) is fixedly connected to and connected to an air inlet pipe (2) on its lower side, and an air outlet shell (3) is fixedly connected to and connected to its upper side. A packing element (4) is disposed inside the fixed tank (1); Bolt bracket (5) is fixed inside the fixed tank (1) and located below the packing member (4); The fixing cylinder (6) is fixedly connected to the bolt bracket (5); The liquid inlet pipe (7) is fixed to the fixed tank (1) and the fixed cylinder (6). Atomizing nozzle (8) is fixed inside the fixed cylinder (6) and connected to the liquid inlet pipe (7). The nozzle of the atomizing nozzle (8) is oriented in the same direction as the flow of flue gas inside the fixed tank (1). The packing element (4) includes: The first fixing ring (401) is fixed inside the fixing tank (1) and located above the bolt bracket (5); The second fixing ring (402) is fixed to the fixing cylinder (6). The second fixing ring (402) is located below the first fixing ring (401). A plurality of annular corrugated plates (403) are detachably connected between the second fixing ring (402) and the first fixing ring (401). The annular corrugated plates (403) are provided with a first through hole (404) and a second through hole (405) arranged in an annular array and uniformly distributed. The second through hole (405) is located at the crest of the adjacent annular corrugated plate (403) and is used to transport gas. The first through hole (404) is located at the trough of the adjacent annular corrugated plate (403) and is used to transport absorbent liquid. The distribution positions of all the second through holes (405) and the first through holes (404) on different annular corrugated plates (403) are inconsistent. The fixed tank (1) is fixedly connected to a blocking member (9) located above the first fixed ring (401), and the blocking member (9) is fixedly connected to a uniformly distributed guide shell (10). The blocking member (9) is composed of an arc-shaped part and an inclined part. The guide shells (10) that are evenly distributed are located on the lower side of the arc-shaped part and the inclined part of the blocking member (9). The spraying range of the atomizing nozzle (8) is annular when projected onto the horizontal plane. The outer diameter of the atomizing nozzle (8) when projected onto the horizontal plane is smaller than the inner diameter of the fixed tank (1). The guide shells (10) are located within the spraying range of the atomizing nozzle (8). The guide shell (10) is fixedly connected to an inclined guide shell (11). The guide shell (11) is used to guide the absorbent liquid sprayed by the atomizing nozzle (8). The guide shell (11) is composed of two trapezoidal shells of different sizes, and the adjacent sides of the two trapezoidal shells have the same length.

2. The boiler flue gas filtration and separation treatment device according to claim 1, characterized in that, it further... include: The evenly distributed connecting frames (12) are all fixed inside the fixed tank (1). The evenly distributed connecting frames (12) are located between the upper annular corrugated plate (403) and the blocking member (9). The connecting frames (12) are fixed with a shielding plate (13). The shielding plate (13) is located above the upper annular corrugated plate (403) and is inclined.

3. The boiler flue gas filtration and separation treatment device according to claim 2, characterized in that, The shield (13) has a cross-section of [ ], which is used to guide the gas. The width of the shield (13) gradually increases from the side near the liquid inlet pipe (7) to the side away from the liquid inlet pipe (7), which is used to increase the coverage area of ​​the gas.

4. The boiler flue gas filtration and separation treatment device according to claim 3, characterized in that, Several liquid guide shells (14) are fixedly connected to the lower side of the shield (13). All the liquid guide shells (14) on the same shield (13) are fixedly connected and connected to a liquid guide pipe (15). The liquid guide pipe (15) passes through the fixed cylinder (6) and is connected to the lower part of the fixed tank (1).

5. The boiler flue gas filtration and separation treatment device according to claim 4, characterized in that, The liquid guiding shell (14) is composed of a V-shaped shell and a fixing plate. The connection between the liquid guiding tube (15) and the liquid guiding shell (14) is located at the lower part of the V-shaped shell on the liquid guiding shell (14).

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