Tail gas treatment device of spray granulation tower

Abstract

The utility model discloses a tail gas treatment device of a spray granulation tower, and relates to the technical field of tail gas treatment, the tail gas treatment device of the spray granulation tower comprises a tower body, an exhaust cylinder, a plurality of cyclone blades and a plurality of nozzle assemblies, the tower body is provided with a gas inlet and a gas outlet, and the gas inlet is communicated with the tail gas outlet of the spray granulation tower; the cyclone blades are arranged in the tower body; an air guide channel is formed between every two adjacent cyclone blades and is communicated with the air inlet; the spray head assembly comprises a plurality of spray heads which are used for spraying water mist. Tail gas enters the air guide channel from the air inlet, the cyclone blades extend in the circumferential side direction of the exhaust barrel so that airflow flowing through the cyclone blades can rotate, then the tail gas rotates in the air guide channel, rotating airflow is generated, and gas and solid particles in the tail gas are separated. And water mist sprayed by the spray head acts with the small particles, so that a plurality of small small particles are adhered together to form larger solid particles, and the solid particles are settled and discharged from the discharging opening.

Description

Technical Field

[0001] This utility model belongs to the technical field of exhaust gas treatment, and specifically relates to an exhaust gas treatment device for a spray granulation tower. Background Technology

[0002] Spray granulation towers use mechanical action to fluidize the material to be dried, dispersing it into very fine, mist-like particles. Upon contact with hot air, most of the moisture is removed, drying the solid matter in the material into regularly shaped spherical particles. Spray granulation produces particles with uniform particle size, uniform moisture content, and good flowability. However, some of these tiny particles are discharged as waste gas with the hot air, polluting the air and wasting material. Utility Model Content

[0003] The purpose of this invention is to provide a tail gas treatment device for a spray granulation tower to solve one or more technical problems existing in the prior art.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] This utility model embodiment provides a tail gas treatment device for a spray granulation tower, comprising:

[0006] The tower body has an air inlet and an exhaust outlet. The air inlet is connected to the tail gas discharge outlet of the spray granulation tower, and the exhaust outlet is located at the top of the tower body. The bottom of the tower body forms a feed outlet.

[0007] An exhaust duct is installed inside the tower body, and the exhaust duct is correspondingly arranged with the exhaust port;

[0008] Multiple cyclone blades are disposed inside the tower body; the cyclone blades extend spirally along the length of the exhaust duct so that the airflow passing through the cyclone blades rotates; one side of the cyclone blades is connected to the inner wall of the tower body, and the other side is connected to the outer wall of the exhaust duct; an air guide channel is formed between two adjacent cyclone blades, and the air guide channel is connected to the air inlet;

[0009] Multiple nozzle assemblies are provided, each nozzle assembly being correspondingly disposed on the cyclone blades; each nozzle assembly includes multiple nozzles, each nozzle being used to spray water mist, and each nozzle being located within the air guide channel.

[0010] According to the exhaust gas treatment device of the spray granulation tower of the present invention, the cyclone blade is a shell, and a sliding groove is provided on the outer wall of the cyclone blade. The sliding groove extends along the inner side of the tower body to the outer side of the tower body; the nozzle is slidably disposed in the sliding groove.

[0011] According to the exhaust gas treatment device of the spray granulation tower of the present invention, the edge of the sliding groove is provided with a sliding guide rail; the nozzle assembly further includes a sliding member, the sliding member is located inside the cyclone blade, and the nozzle is fixed to the sliding member; the sliding member is slidably disposed on the sliding guide rail, so that the nozzle slides in the sliding groove.

[0012] According to the exhaust gas treatment device of the spray granulation tower of the present invention, the sliding member includes a support part, two elastic parts and two sliding parts; the sliding parts are slidably disposed on the sliding guide rail, the sliding parts and the elastic parts correspond one-to-one, and the sliding parts are connected to the support part through the elastic parts, and the two sliding parts are spaced apart along the length direction of the sliding groove; the nozzle is fixed to the support part.

[0013] According to an embodiment of the present invention, in the exhaust gas treatment device of the spray granulation tower, the sliding groove is located on the side of the cyclone blade away from the exhaust pipe; the length of the support is greater than twice the length of the sliding groove, and the height of the support is greater than the height of the sliding groove; the nozzle is located in the middle of the support.

[0014] According to the exhaust gas treatment device of the spray granulation tower of the present invention, the nozzle is located on the side of the air guide channel opposite to the flow direction of the airflow, and the spray direction of the nozzle is set along the tangential direction of the airflow.

[0015] According to an embodiment of the present invention, the exhaust gas treatment device of the spray granulation tower has an air inlet located on the side wall of the tower body and on the side of the air guide channel away from the discharge port. The air inlet is connected to an air inlet pipe, which is used to transport the exhaust gas of the spray granulation tower.

[0016] According to the exhaust gas treatment device of the spray granulation tower of the present invention, the cyclone blades are provided with five blades, and the gap between two adjacent cyclone blades is less than or equal to 80 cm.

[0017] According to an embodiment of the present invention, the exhaust port of the spray granulation tower is connected to an exhaust pipe, and the exhaust port is connected to the exhaust duct.

[0018] According to an embodiment of the present invention, the exhaust gas treatment device for a spray granulation tower further includes an exhaust filter bag connected to the exhaust pipe.

[0019] The present invention has at least the following beneficial effects:

[0020] The exhaust gas discharged from the tail gas outlet of the spray granulation tower enters the air guide channel through the air inlet. The cyclone blades extend along the circumference of the exhaust duct, causing the airflow passing through the cyclone blades to rotate. This, in turn, causes the exhaust gas to rotate within the air guide channel, guiding the exhaust gas to rotate along the circumference of the exhaust duct, generating a rotating airflow. The rotation of the airflow generates a strong centrifugal force, which pushes the tiny particles (such as dust) in the airflow towards the inner wall of the tower, causing the gas and solid particles in the exhaust gas to separate. The water mist sprayed from the nozzles interacts with the tiny particles, causing multiple small particles to stick together to form larger solid particles. These solid particles then settle and are discharged from the discharge port, while the exhaust gas moves upward from inside the exhaust duct and flows out from the exhaust port. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a schematic diagram of the overall structure of the tail gas treatment device of the spray granulation tower provided in this embodiment of the utility model;

[0023] Figure 2 This is a top view of the exhaust gas treatment device of the spray granulation tower provided in this embodiment of the utility model;

[0024] Figure 3 yes Figure 2 Cross-sectional view of AA in the middle;

[0025] Figure 4 This is a schematic diagram showing the matching relationship between the cyclone blades and the exhaust duct of the tail gas treatment device of the spray granulation tower provided in this embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the cyclone blade of the tail gas treatment device of the spray granulation tower provided in this embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram showing the fit between the cyclone blades and the sliding parts of the exhaust gas treatment device of the spray granulation tower provided in this embodiment of the present invention.

[0028] The following labels are shown in the attached diagram:

[0029] 100. Tower body; 110. Air inlet; 120. Exhaust outlet; 130. Material discharge port; 140. Exhaust pipe;

[0030] 200. Exhaust duct;

[0031] 300 Cyclone blade; 310 Air guide channel; 320 First side; 330 Second side; 340 First end; 350 Second end; 360 Sliding groove; 370 Sliding component; 371 Support part; 372 Elastic part; 373 Sliding part; 380 Sliding guide rail;

[0032] 400. Nozzle assembly; 410. Nozzle. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Reference Figures 1 to 6 The following are several embodiments of the exhaust gas treatment device of the spray granulation tower of this utility model.

[0038] like Figures 1 to 3As shown, the exhaust gas treatment device for the spray granulation tower of this utility model embodiment includes a tower body 100, an exhaust duct 200, multiple cyclone blades 300, and multiple nozzle assemblies 400. The tower body 100 has an air inlet 110 and an exhaust outlet 120. The air inlet 110 is connected to the exhaust gas discharge outlet of the spray granulation tower, and the exhaust outlet 120 is located at the top of the tower body 100. A feed inlet 130 is formed at the bottom of the tower body 100. The exhaust duct 200 is disposed inside the tower body 100, and the exhaust duct 200 is correspondingly disposed to the exhaust outlet 120. Multiple cyclone blades 300 are disposed on the tower body 100. Inside the tower body 100; the cyclone blades 300 extend spirally along the length of the exhaust duct 200 so that the airflow passing through the cyclone blades 300 rotates. One side of the cyclone blades 300 is connected to the inner wall of the tower body 100, and the other side is connected to the outer wall of the exhaust duct 200. An air guide channel 310 is formed between two adjacent cyclone blades 300, and the air guide channel 310 is connected to the air inlet 110. The nozzle assembly 400 is correspondingly arranged on the cyclone blades 300. The nozzle assembly 400 includes multiple nozzles 410, which are used to spray water mist, and the nozzles are located inside the air guide channel 310.

[0039] The exhaust gas discharged from the tail gas outlet of the spray granulation tower enters the air guide channel 310 through the air inlet 110. The cyclone blades 300 extend spirally along the length of the exhaust duct 200, causing the airflow passing through the cyclone blades 300 to rotate, thereby causing the exhaust gas to rotate within the air guide channel 310. This guides the exhaust gas to rotate along the periphery of the exhaust duct 200, generating a rotating airflow. Due to the rotation of the airflow, a strong centrifugal force is generated, which pushes the tiny particles (such as dust) in the airflow towards the inner wall of the tower body 100, causing the gas and solid particles in the exhaust gas to separate. The nozzle assembly 400 is correspondingly arranged on the cyclone blades 300. The water mist sprayed by the nozzles 410 interacts with the tiny particles, causing multiple small particles to stick together to form larger solid particles. This causes the solid particles to settle and be discharged from the discharge port 130, while the exhaust gas moves upward from inside the exhaust duct 200 and flows out from the exhaust port 120.

[0040] The water mist sprayed from nozzle 410 acts on the tiny particles within the air guide channel 310, causing them to aggregate, grow larger, and become heavier, forming solid particles. These solid particles settle quickly and are no longer easily suspended in the air, reducing the concentration of tiny particles in the exhaust gas and thus achieving a clean exhaust gas effect. Furthermore, it effectively utilizes the tiny particles suspended in the exhaust gas, using spraying to aggregate them into solid particles and allow them to settle, thereby recovering dust and other tiny particles from the exhaust gas and improving its utilization rate. The final particle size, density, and other properties can be controlled by adjusting parameters such as the size of the spray droplets from nozzle 410 and the air intake speed from inlet 110.

[0041] During the operation of the exhaust gas treatment device, large-diameter dust particles in the exhaust gas are more significantly affected by centrifugal force, making them easier to separate. However, small-diameter dust particles may still escape with the airflow due to insufficient inertia, resulting in an increased proportion of small-diameter particles in the central region. If the nozzle 410 is placed on the tower body 100, it will be difficult to capture small-diameter particles located in the central region. In this embodiment of the invention, the nozzle 410 is placed on the cyclone blade 300, which is more conducive to the uniform distribution of the water mist sprayed by the nozzle 410 and is beneficial to the capture of small-diameter particles.

[0042] In some embodiments, such as Figures 5 to 6 As shown, the cyclone blade 300 is a shell, and a sliding groove 360 ​​is provided on the outer wall of the cyclone blade 300. The sliding groove 360 ​​extends from the inner side of the tower body 100 to the outer side of the tower body 100. The nozzle 410 is slidably disposed in the sliding groove 360, which facilitates the adjustment of the position of the nozzle 410 on the cyclone blade 300 according to the air intake speed. A water pipe can be installed inside the cyclone blade 300, which connects the nozzle 410 to an external water source. Water is transported to the nozzle 410 through the water pipe, and water mist is sprayed out through the nozzle 410. This water mist can act on the tiny particles in the air guide channel 310, causing the tiny particles to agglomerate and form solid particles. The cyclone blade 300 can be snapped into the tower body 100 for easy maintenance.

[0043] In some embodiments, the exhaust gas treatment device further includes a water tank and a water pump. A water pipe connects the water tank and the nozzle 410 to deliver water from the water tank to the nozzle 410. The water pump is installed on the water pipe and is used to regulate the flow rate of water in the water pipe. The nozzle 410 is used to atomize water into water mist and spray it out. Multiple nozzles 410 are distributed at different positions on the water pipe, and water is transported to different nozzles 410 through the water pipe.

[0044] In some embodiments, a sliding guide rail 380 is provided at the edge of the sliding groove 360; the nozzle assembly 400 also includes a slider 370, which is located inside the cyclone blade 300, and the nozzle 410 is fixed to the slider 370; the sliding guide rail 380 is arranged along the length direction of the sliding groove 360, and the slider 370 is slidably disposed on the sliding guide rail 380, so that the nozzle 410 slides in the sliding groove 360; through the cooperation between the slider 370 and the sliding guide rail 380, the nozzle 410 can slide relative to the sliding groove 360; therefore, the nozzle 410 can be turned so that the nozzle 410 slides in the sliding groove 360, thereby adjusting the position of the nozzle 410 in the air guide channel 310, which facilitates the adjustment of the distribution of water mist in the air guide channel 310 according to the wind speed.

[0045] In some embodiments, the slider 370 includes a support portion 371, two elastic portions 372, and two sliding portions 373. The sliding portions 373 are slidably disposed on the sliding guide rail 380, with each sliding portion 373 corresponding to one of the elastic portions 372. The sliding portions 373 are connected to the support portion 371 via the elastic portions 372, and the two sliding portions 373 are spaced apart along the length of the sliding groove 360. The nozzle 410 is fixed to the support portion 371. By sliding the sliding portions 373 within the sliding guide rail 380, the support portion 371 slides relative to the sliding groove 360, thereby causing the nozzle 410 to slide relative to the sliding groove 360. Since the cyclone blade 300 is arc-shaped, the distance between the support portion 371 and the cyclone blade 300 can be adjusted via the elastic portions 372, reducing the risk of deformation of the support portion 371.

[0046] In some embodiments, the sliding groove 360 ​​is located on the side of the cyclone blade 300 away from the exhaust pipe, so that the nozzle 410 can wet the separated particles; the length of the support 371 is greater than twice the length of the sliding groove 360, the height of the support 371 is greater than the height of the sliding groove 360, and the nozzle 410 is located in the middle of the support 371 to ensure that the support 371 can cover the sliding groove 360.

[0047] In some embodiments, the nozzle 410 is located on the side of the air duct 310 opposite to the flow direction of the airflow, and the spray direction of the nozzle 410 is set along the tangential direction of the airflow, so that when the direction of the sprayed water mist is consistent with the flow direction of the dust particles, the droplets can collide with the dust particles more efficiently by taking advantage of the inertia of the dust particles.

[0048] like Figures 1 to 3 As shown, the tower body 100 is cylindrical. One side of the cyclone blade 300 is connected to the inner wall of the tower body 100, and the other side is connected to the outer wall of the exhaust duct 200. This ensures a tight connection between the cyclone blade 300 and the tower body 100, as well as between the cyclone blade 300 and the exhaust duct 200, reducing the risk of the cyclone blade 300 detaching from the tower body 100 or the exhaust duct 200. In other words, the cyclone blade 300 has a first side 320 and a second side 330 arranged along its width direction. The first side 320 is connected to the outer wall of the exhaust duct 200, and the second side 330 is connected to the outer wall of the tower body 100. The inner wall; an air guide channel 310 is formed between two adjacent cyclone blades 300. The cyclone blades 300 are connected to the inner wall of the tower body 100 and the outer wall of the exhaust duct 200. This ensures that the exhaust gas flows along the extension direction of the air guide channel 310, so as to better guide the flow direction of the exhaust gas and prevent the exhaust gas from flowing out through the gap between the cyclone blades 300 and the tower body 100 or the gap between the cyclone blades 300 and the exhaust duct 200, which would affect the recovery of solid particles. The cyclone blades 300 can be curved, which is conducive to guiding the flow of exhaust gas and forming a rotating airflow.

[0049] like Figure 3As shown, in some embodiments, each nozzle assembly 400 includes at least three nozzles 410 to ensure sufficient water mist to wet the fine particles in the exhaust gas and to ensure the uniformity of the water mist in the air guide channel 310; the nozzle assembly 400 and the air guide channel 310 correspond one-to-one to ensure that the water mist can flow in each air guide channel 310; the exhaust gas flows in the air guide channel 310, and the nozzles 410 of the same nozzle assembly 400 are arranged along the extension direction of the corresponding air guide channel 310, so that the water mist can reach different positions in the air guide channel 310, thereby improving the uniformity of the water mist in the air guide channel 310 and improving the recovery rate of fine particles in the exhaust gas.

[0050] like Figure 3 As shown, in some embodiments, the air inlet 110 is located on the side wall of the tower body 100, and the air inlet 110 is located on the side of the air guide channel 310 away from the discharge port 130, so as to improve the flow path of the exhaust gas inside the tower body 100, thereby improving the recovery rate of small particles in the exhaust gas; the air inlet 110 is connected to an air inlet pipe, which is used to transport the exhaust gas of the spray granulation tower. The air inlet pipe connects the air inlet 110 and the exhaust gas discharge port of the spray granulation tower, so as to transport the exhaust gas of the spray granulation tower to the air inlet 110, and the exhaust gas enters the interior of the tower body 100 through the air inlet 110.

[0051] like Figures 3 to 4 As shown, in some embodiments, the height of the cyclone blades 300 is less than the height of the air inlet 110. After the exhaust gas enters the tower body 100 through the air inlet 110, it flows into different air guide channels 310. Since the cyclone blades 300 extend along the circumferential direction of the exhaust duct 200, the exhaust gas rotates through the cyclone blades 300 and is subjected to centrifugal force. The tiny particles in the exhaust gas move towards the inner wall of the tower body 100. Under the action of water mist, the tiny particles agglomerate and sink. If the height of the cyclone blades 300 is higher than the height of the air inlet 110, it will easily obstruct the flow between different air guide channels 310, causing the exhaust gas to flow from the air inlet 110 to the inner wall of the tower body 100. The incoming exhaust gas cannot flow into the different air guide channels 310, affecting the recovery of small particles in the exhaust gas; the cyclone blade 300 has a first end 340 and a second end 350 arranged along its extension direction. The first end 340 of the cyclone blade 300 is connected to the upper end of the exhaust duct 200, and the second end 350 of the cyclone blade 300 is connected to the lower end of the exhaust duct 200. The height of the first end 340 of the cyclone blade 300 is below the air inlet 110 to avoid the cyclone blade 300 near the air inlet 110 from obstructing the flow of exhaust gas entering from the air inlet 110 into the air guide channel 310 away from the air inlet 110.

[0052] like Figures 1 to 3As shown, in some embodiments, along the direction from the upper end of the tower body 100 to the lower end of the tower body 100, the diameter of the cross-section at the lower end of the tower body 100 gradually decreases, so that the inner wall of the tower body 100 forms an inclined guiding surface. The guiding surface guides the solid particles to the discharge port 130, which is conducive to the complete discharge of the solid particles. The discharge port 130 is less than or equal to the diameter of the exhaust duct 200 to ensure that the size of the exhaust duct 200 is large enough to improve the exhaust efficiency of the exhaust gas. In addition, by limiting the size of the discharge port 130, the solid particles can be more concentrated, reducing the risk of solid particles scattering due to the excessive size of the discharge port 130 during the feeding process.

[0053] In some embodiments, the exhaust gas treatment device further includes a conveyor belt located below the discharge port 130. The conveyor belt transports solid particles flowing out of the discharge port 130. After flowing out of the discharge port 130, the solid particles fall directly onto the conveyor belt and are transported by it. The conveyor belt is a conventional conveyor belt, which is typically made of strip-shaped material (such as rubber, cloth, metal chain, etc.) and can carry items and move them along a fixed path via a drive device. This embodiment of the invention does not specifically limit the specific structure of the conveyor belt.

[0054] like Figure 4 As shown, in some embodiments, the cyclone blades 300 are provided with five blades. Multiple cyclone blades 300 can better guide the exhaust gas and facilitate the formation of a rotating airflow. The gap between two adjacent cyclone blades 300 is less than or equal to 80 cm. By limiting the gap between two adjacent cyclone blades 300, that is, limiting the width of the air guide channel 310, the interaction area between the exhaust gas and the cyclone blades 300 is increased, which in turn facilitates the cyclone blades 300 to guide the exhaust gas and make the exhaust gas rotate.

[0055] like Figure 1 As shown, in some embodiments, the exhaust port 120 is connected to the exhaust pipe 140, and the exhaust port 120 is connected to the exhaust duct 200, so that the exhaust gas flowing out of the exhaust duct 200 can be directly exhausted from the exhaust port 120, which is beneficial to guiding the direction of the exhaust gas.

[0056] In some embodiments, the exhaust gas treatment device further includes an exhaust filter bag connected to the exhaust pipe 140; exhaust gas flows through the exhaust pipe 140 to the exhaust filter bag, which can filter and remove particulate matter in the air. As a filter medium, the exhaust filter bag can trap dust or particulate matter in the gas, ensuring clean air, reducing pollution, and meeting environmental protection requirements.

[0057] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A tail gas treatment device for a spray granulation tower, characterized in that, include: The tower body has an air inlet and an exhaust outlet, the air inlet being connected to the tail gas emission outlet of the spray granulation tower, and the exhaust outlet being located at the top of the tower body; A discharge port is formed at the bottom of the tower body; An exhaust duct is installed inside the tower body, and the exhaust duct is correspondingly arranged with the exhaust port; Multiple cyclone blades are disposed inside the tower body; The cyclone blades extend spirally along the length of the exhaust duct so that the airflow passing through the cyclone blades rotates. One side of the cyclone blades is connected to the inner wall of the tower body, and the other side is connected to the outer wall of the exhaust duct. An air guide channel is formed between two adjacent cyclone blades, and the air guide channel is connected to the air inlet; Multiple nozzle assemblies are provided, with each nozzle assembly correspondingly disposed on the cyclone blade; The nozzle assembly includes multiple nozzles for spraying water mist, and the nozzles are located within the air guide channel.

2. The tail gas treatment device for the spray granulation tower according to claim 1, characterized in that, The cyclone blade is a shell, and a sliding groove is provided on the outer wall of the cyclone blade. The sliding groove extends along the inner side of the tower body to the outer side of the tower body; the nozzle is slidably disposed in the sliding groove.

3. The tail gas treatment device for the spray granulation tower according to claim 2, characterized in that, The edge of the sliding groove is provided with a sliding guide rail; the nozzle assembly also includes a sliding member, which is located inside the cyclone blade, and the nozzle is fixed to the sliding member; the sliding member is slidably disposed on the sliding guide rail, so that the nozzle slides within the sliding groove.

4. The tail gas treatment device for the spray granulation tower according to claim 3, characterized in that, The sliding component includes a support portion, two elastic portions, and two sliding portions; the sliding portions are slidably disposed on the sliding guide rail, the sliding portions and the elastic portions correspond one-to-one, and the sliding portions are connected to the support portion through the elastic portions, and the two sliding portions are spaced apart along the length direction of the sliding groove; the nozzle is fixed to the support portion.

5. The tail gas treatment device for the spray granulation tower according to claim 4, characterized in that, The sliding groove is located on the side of the cyclone blade away from the exhaust pipe; the length of the support is greater than twice the length of the sliding groove, and the height of the support is greater than the height of the sliding groove; the nozzle is located in the middle of the support.

6. The tail gas treatment device for the spray granulation tower according to any one of claims 1 to 5, characterized in that, The nozzle is located on the side of the air guide channel opposite to the flow direction of the airflow, and the spray direction of the nozzle is set along the tangential direction of the airflow.

7. The tail gas treatment device for the spray granulation tower according to any one of claims 1 to 3, characterized in that, The air inlet is located on the side wall of the tower body, and the air inlet is located on the side of the air guide channel away from the feed port. The air inlet is connected to an air inlet pipe, which is used to transport the exhaust gas of the spray granulation tower.

8. The tail gas treatment device for the spray granulation tower according to any one of claims 1 to 3, characterized in that, The cyclone blades are provided with five blades, and the gap between two adjacent cyclone blades is less than or equal to 80 centimeters.

9. The tail gas treatment device for the spray granulation tower according to any one of claims 1 to 3, characterized in that, The exhaust port is connected to an exhaust pipe, and the exhaust port is connected to the exhaust duct.

10. The tail gas treatment device for the spray granulation tower according to claim 9, characterized in that, The exhaust gas treatment device also includes an exhaust filter bag, which is connected to the exhaust pipe.

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