An exhaust gas treatment spray scrubber tower and method of use

Abstract

This invention relates to the field of spray scrubbing tower technology, and discloses a waste gas treatment spray scrubbing tower and its usage method. The waste gas treatment spray scrubbing tower includes a spray tower body, which includes a tower body. Two sets of connecting pipes are installed inside the tower body, and spray pipes are also installed inside the tower body, with two sets of spray heads symmetrically installed on the spray pipes. A rotating spray unit connects the upper and lower sets of connecting pipes and the spray pipes. The rotating spray unit of this invention uses a dynamic conical coverage trajectory, and its rotational motion allows the scrubbing liquid to periodically sweep across the edge area of ​​the tower body. This specifically strengthens the spray coverage of areas where nitroaniline and o-nitroaniline tend to accumulate, effectively balancing the pollutant concentration difference between the edge and center areas, fundamentally solving the problem of exceeding standards due to insufficient spraying in the edge areas.

Description

Technical Field

[0001] This invention relates to the field of spray scrubbing tower technology, and more specifically, to a waste gas treatment spray scrubbing tower and its usage method. Background Technology

[0002] Nitroaniline and o-nitroaniline are key chemical intermediates in the production of dyes, pharmaceuticals and pesticides. The waste gas emitted during their production is highly toxic and biodegradable. If not treated properly, it will not only cause irreversible damage to the respiratory and nervous systems of operators, but also pollute soil and water bodies through atmospheric deposition, posing a long-term threat to the ecological environment.

[0003] Among existing waste gas treatment technologies, rotary spray towers are widely used because they can expand the gas-liquid contact range. However, the density of nitroaniline and o-nitroaniline waste gases is slightly greater than that of air, which easily leads to edge aggregation within the tower, meaning that the pollutant concentration in the edge area of ​​the tower is significantly higher than that in the central area. However, traditional rotary spraying uses a single circular trajectory with a fixed radius, which cannot dynamically adjust the spray intensity according to this concentration gradient, resulting in consistently insufficient coverage of the scrubbing liquid in the edge area.

[0004] Furthermore, nitroaniline molecules have stable structures, and sufficient contact time is required for effective absorption during the mass transfer process with the washing liquid. However, the relative velocity between the static liquid curtain formed by traditional rotary spraying and the exhaust gas is too low, resulting in extremely high mass transfer resistance. At the same time, due to the height limitation of the tower, the actual residence time of the exhaust gas inside the tower is less than 1 second, far below the mass transfer requirement. This insufficient contact time and low relative velocity cause a large amount of exhaust gas to escape from the outlet before fully reacting with the washing liquid, frequently triggering instantaneous emissions exceeding standards and severely restricting the treatment effect of such highly toxic exhaust gases. Summary of the Invention

[0005] This invention provides a waste gas treatment spray scrubbing tower and its usage method, solving the technical problems in related technologies where traditional rotary spraying uses a single circular trajectory with a fixed radius, which cannot dynamically adjust the spray intensity according to the concentration gradient, resulting in insufficient coverage of the scrubbing liquid in the edge area, and the relatively low motion speed between the static liquid curtain formed by traditional rotary spraying and the waste gas, resulting in extremely high mass transfer resistance.

[0006] This invention provides a waste gas treatment spray scrubbing tower, comprising a spray tower body, the spray tower body including a tower body, two sets of connecting pipes installed inside the tower body, and spray pipes symmetrically mounted on the spray pipes; a rotating spray unit, the upper and lower sets of connecting pipes and the spray pipes being connected via the rotating spray unit; and a uniform distribution unit, the uniform distribution unit including a connecting ring disposed inside a second annular water supply pan, the connecting ring having a rack column disposed inside, and multiple sets of driven gears meshing with the upper part of the rack column, a drive shaft mounted on the driven gears, a swing arm mounted on the drive shaft, a first traction block slidably disposed on the swing arm, and the first traction block being fixedly connected to the spray pipes.

[0007] As a further optimization of the present invention, the swing arm has a traction groove inside, and the traction groove is slidably connected to the first traction block.

[0008] As a further optimization of the present invention, the rotating spray unit includes a connecting frame installed inside the tower body, a first annular water supply plate is installed on the connecting frame, and a second annular water supply plate is slidably connected to the first annular water supply plate.

[0009] As a further optimization of the present invention, a cylinder is installed on the connecting frame, and the telescopic end of the cylinder is rotatably connected to the rack column through a bearing.

[0010] As a further optimization of the present invention, a first conical tooth is installed on the second annular water supply plate, and a second conical tooth is meshed on the first conical tooth. A connecting shaft is installed on the second conical tooth, and the two sets of connecting shafts pass through the tower body and are connected by a belt pulley transmission mechanism. A motor is also installed on the tower body, and the output shaft of the motor is fixedly connected to one of the sets of connecting shafts.

[0011] As a further optimization of the present invention, an annular space is formed between the connecting ring and the second annular water supply tray, and the spray pipes are evenly distributed in an annular shape within the annular space. Water supply pipes are slidably connected to both sides inside the spray pipes, and the ends of the water supply pipes away from the spray pipes are fixedly connected to the connecting ring and the second annular water supply tray respectively.

[0012] As a further optimization of the present invention, the spray head is provided with an anti-clogging unit, the anti-clogging unit including a flexible inner liner installed inside the spray head, and a movable cavity is formed between the flexible inner liner and the inner wall of the spray end of the spray head. A pressure plate is provided inside the movable cavity, and the pressure plate and the spray end of the spray head are controlled by a synchronous scaling component.

[0013] As a further optimization of the present invention, the synchronous scaling component includes a limiting plate installed on the spray head, the limiting plate having multiple sets of limiting grooves evenly distributed in a ring, and a connecting rod slidably connected inside the limiting groove; a rotating disk is bearing connected to the limiting plate, and the rotating disk has multiple sets of arc-shaped grooves evenly distributed in a ring, a second traction block is slidably connected inside the arc-shaped groove, and the second traction block is fixedly connected to the connecting rod.

[0014] As a further optimization of the present invention, each of the connecting rods is equipped with a guide post on the side near the spray head, and the guide post passes through the spray head and is fixedly connected to the pressure plate. The spray head and the guide post are slidably connected.

[0015] Another aspect of the present invention provides a method of using a waste gas treatment spray scrubbing tower, comprising the following steps:

[0016] S1. The waste gas to be treated is introduced into the tower body through the air inlet, so that the waste gas flows upward along the tower body flow channel, forming a countercurrent contact path with the washing liquid.

[0017] S2. Start the rotating spray unit. The spray pipe moves in a circular motion around the central axis of the tower. The centrifugal force of rotation makes the washing liquid droplets evenly distributed, forming a dynamic conical coverage area to eliminate blind spots at the edges and center of the tower. It also drives the airflow to form rotating turbulence to enhance the relative motion between gas and liquid.

[0018] S3. Synchronously start the uniform distribution unit to make the spray pipe extend and retract radially to adjust the coverage radius, adapt to the distribution of exhaust gas concentration and tower diameter, and form a spiral three-dimensional spray net.

[0019] S4. After the washing liquid is atomized by the spray head, it undergoes two-stage purification with the upward-flowing exhaust gas at the upper and lower sets of filter media.

[0020] S5. The purified gas is discharged through the outlet.

[0021] The beneficial effects of the present invention are as follows: The rotating spray unit of the present invention uses a dynamic conical coverage trajectory, and its rotational action enables the washing liquid to periodically sweep across the edge area of ​​the tower body, which specifically strengthens the spray coverage of areas where nitroaniline and o-nitroaniline are prone to accumulate, effectively balancing the difference in pollutant concentration between the edge and the center area, and fundamentally solving the problem of exceeding the standard due to insufficient spraying in the edge area.

[0022] Secondly, the turbulence effect generated by the rotation significantly increases the relative motion intensity of gas and liquid. The dynamic liquid curtain formed by the rotation extends the contact path between the exhaust gas and the scrubbing liquid, providing more sufficient reaction time for structurally stable nitroaniline molecules, effectively reducing mass transfer resistance and minimizing the escape of unreacted exhaust gas.

[0023] In addition, by controlling the radial extension and retraction of the spray head through the uniform distribution unit, the spray range can be flexibly adjusted according to the concentration distribution characteristics of nitroaniline and o-nitroaniline exhaust gases. When the exhaust gas concentration increases locally, the extension and retraction structure can expand the spray radius in real time to increase the amount of washing liquid used in high-concentration areas; while in low-concentration stages, the radius is contracted to avoid wasting washing liquid. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a three-dimensional cross-sectional structural schematic diagram of the present invention;

[0026] Figure 3 This is a three-dimensional structural diagram of the rotating spray unit of the present invention;

[0027] Figure 4 This is a partial three-dimensional structural diagram of the rotating spray unit and the uniform distribution unit of the present invention;

[0028] Figure 5 This is a cross-sectional view of the connection between the first annular water supply tray and the second annular water supply tray of the present invention.

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the uniformly distributed unit of the present invention;

[0030] Figure 7 This is a schematic diagram of a partial three-dimensional structure of the uniformly distributed unit of the present invention;

[0031] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the spray pipe of the present invention;

[0032] Figure 9 This is a three-dimensional structural diagram of the spray head and anti-clogging unit of the present invention;

[0033] Figure 10 This is a three-dimensional structural diagram of the anti-clogging unit of the present invention.

[0034] In the diagram: 100, spray tower body; 110, tower body; 120, air inlet; 130, air outlet; 140, circulating water tank; 150, circulating pipeline; 160, connecting pipeline; 170, spray pipe; 171, cavity; 172, water flow channel; 173, sliding cavity; 174, corrugated sealing pipe; 180, spray head; 190, filter packing; 200, rotating spray unit; 210, connecting frame; 220, first annular water supply tray; 230, second annular water supply tray; 240, first conical tooth; 250, second conical tooth; 260, connecting shaft; 2 70. Belt pulley drive mechanism; 280. Motor; 290. Circular slide rail; 300. Evenly distributed unit; 310. Connecting ring; 320. Water supply pipe; 330. Rack column; 340. Driven gear; 350. Drive shaft; 360. Swing arm; 370. First traction block; 380. Cylinder; 400. Anti-blocking unit; 410. Limiting plate; 420. Limiting groove; 430. Connecting rod; 440. Guide column; 450. Pressure plate; 460. Flexible inner bushing; 470. Rotary disk; 480. Arc groove; 490. Second traction block; 500. Transmission gear. Detailed Implementation

[0035] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0036] Example 1: According to the appendix Figure 1 To be continued Figure 4 As shown, a waste gas treatment spray scrubbing tower includes:

[0037] The spray tower body 100 includes a tower body 110, an air inlet 120 and an air outlet 130 installed on the tower body 110, a circulating water tank 140 and a circulating pipeline 150 installed on the tower body 110, and the circulating water tank 140 and the circulating pipeline 150 are connected by a water pump. Two sets of connecting pipelines 160 are installed inside the tower body 110, and the connecting pipelines 160 are internally connected to the circulating pipeline 150. Spray pipes 170 are also installed inside the tower body 110, and two sets of spray heads 180 are symmetrically installed on the spray pipes 170. Two sets of filter media 190 are also installed inside the tower body 110, and the filter media 190 are located below the upper and lower sets of connecting pipelines 160.

[0038] Working steps: First, the waste gas to be treated enters the interior of the tower body 110 through the air inlet 120 and flows upward along the flow channel of the tower body 110; wherein, the air inlet 120 is located in the lower middle part of the tower body 110 and the air outlet 130 is located at the top, forming a counter-current contact path.

[0039] Secondly, the washing liquid in the circulating water tank 140 can be configured as water, acid or alkali solution or special absorbent according to the composition of the exhaust gas. Driven by the water pump, it is transported through the circulating pipeline 150 to two sets of connecting pipelines 160, and then distributed to the spray pipe 170 through the connecting pipelines 160.

[0040] The spray pipe 170 atomizes or sprays the washing liquid evenly through the symmetrically installed spray heads 180, forming a liquid curtain or droplet group; since the two sets of connecting pipes 160 and the corresponding spray components are distributed vertically, the washing liquid will be sprayed downward in two stages, covering the cross-section of the tower body 110.

[0041] Subsequently, the upper and lower sets of filter media 190 are located below the corresponding connecting pipes 160, and the spray liquid comes into contact with the upper and lower layers of filter media 190 respectively, forming a uniform liquid film on the surface of the filter media 190. When the upward-flowing exhaust gas passes through the lower layer of filter media 190, it comes into full contact with the lower layer of spray liquid and the liquid film on the surface of the media, completing the primary purification. Then it continues to pass upward through the upper layer of filter media 190, coming into contact with the upper layer of spray liquid and the liquid film, achieving secondary purification.

[0042] Finally, the purified gas, after two stages of treatment, has a significantly reduced pollutant concentration and is discharged through the outlet 130; the washing liquid after spraying flows downward and eventually returns to the circulating water tank 140, where it is recycled again after sedimentation or simple treatment, thus realizing the reuse of the washing liquid.

[0043] In summary, the combination of two-stage spraying and two-stage filter media 190 extends the gas-liquid contact path through multi-stage treatment. Combined with the high specific surface area of ​​the filter media 190, mass transfer efficiency is significantly improved, effectively removing soluble pollutants or particulate matter from the waste gas. Furthermore, the symmetrically installed spray heads 180 ensure uniform distribution of the washing liquid across the cross-section of the tower body 110, avoiding blind spots in localized treatment and ensuring stable purification performance.

[0044] In one embodiment, according to the appendix Figure 3 To be continued Figure 5 As shown, the upper and lower sets of connecting pipes 160 and spray pipes 170 are connected by a rotating spray unit 200. The rotating spray unit 200 includes a connecting frame 210 installed inside the tower body 110. A first annular water supply tray 220 is installed on the connecting frame 210, and a second annular water supply tray 230 is slidably connected to the first annular water supply tray 220. An annular slide rail 290 is movably connected inside the second annular water supply tray 230, and the annular slide rail 290 is fixedly connected to the first annular water supply tray 220.

[0045] Specifically, according to the appendix Figure 3 and attached Figure 4 As shown, a first conical tooth 240 is installed on the second annular water supply tray 230, and a second conical tooth 250 is meshed on the first conical tooth 240. A connecting shaft 260 is installed on the second conical tooth 250, and the two sets of connecting shafts 260 pass through the tower body 110 and are connected by a belt pulley transmission mechanism 270. A motor 280 is also installed on the tower body 110, and the output shaft of the motor 280 is fixedly connected to one of the sets of connecting shafts 260. In this embodiment, the rotation of the spray pipe 170 causes the spray trajectory of the spray head 180 to form a continuous annular coverage. Compared with the static liquid curtain of fixed spray, it can eliminate the treatment blind spots in the edge or center area of ​​the tower body 110, which is especially suitable for large-diameter tower bodies 110. In addition, the centrifugal force generated by the rotation makes the distribution of washing liquid droplets more uniform, and at the same time drives the airflow in the tower to form a weak rotating turbulence, increasing the relative speed of gas and liquid, and enhancing the collision and dissolution efficiency of pollutants and washing liquid.

[0046] It is important to understand that after the motor 280 starts, the output torque is transmitted to the second bevel gear 250 through the connecting shaft 260. The second bevel gear 250 meshes with the first bevel gear 240, converting the horizontal rotational motion into the circumferential rotation of the second annular water supply plate 230, which rotates around the central axis of the tower body 110. The belt pulley transmission mechanism 270 synchronously drives another set of connecting shafts 260, so that the upper and lower sets of rotating spray units 200 maintain the same speed of rotation, ensuring the symmetry of the spraying action inside the tower body 110.

[0047] Furthermore, an annular space is formed between the connecting ring 310 and the second annular water supply tray 230. The spray pipe 170 is evenly distributed in the annular space. Water supply pipes 320 are slidably connected to both sides inside the spray pipe 170, and the end of the water supply pipe 320 away from the spray pipe 170 is fixedly connected to the connecting ring 310 and the second annular water supply tray 230 respectively.

[0048] When the second annular water supply tray 230 rotates, the water supply pipe 320 drives the spray pipe 170 to move in a circular motion around the central axis of the tower body 110. The washing liquid enters the first annular water supply tray 220 from the connecting pipe 160, is diverted to the water supply pipe 320 through the annular space, and is then sent into the spray pipe 170 through the sliding connection structure. Finally, it is sprayed out by the spray head 180. In the rotating state, the trajectory of the spray head 180 forms a dynamic conical coverage area, which, together with the upper and lower rotating spray units 200, forms a three-dimensional cross spray net inside the tower body 110.

[0049] In one embodiment, according to the appendix Figure 3 To be continued Figure 6As shown, the exhaust gas treatment spray scrubbing tower also includes a uniform distribution unit 300. The uniform distribution unit 300 includes a connecting ring 310 disposed inside the second annular water supply pan 230. A rack column 330 is disposed inside the connecting ring 310, and multiple sets of driven gears 340 are meshed on the upper part of the rack column 330. A drive shaft 350 is mounted on the driven gears 340, and both ends of the drive shaft 350 are rotatably connected to supports via bearings. The supports are fixedly connected to the connecting ring 310. A swing arm 360 is mounted on the drive shaft 350, and a first traction block 370 is slidably disposed on the swing arm 360. The first traction block 370 is fixedly connected to the spray pipe 170. In this embodiment, the spray pipe 170 simultaneously undergoes a combined rotational and radial extension / retraction motion, causing the trajectory of the spray head 180 to form a dynamically changing spiral three-dimensional spray net. This creates a complex and interwoven contact path with the upward-flowing exhaust gas, increasing the probability of collision between pollutants and the scrubbing liquid.

[0050] Specifically, according to the appendix Figure 4 Appendix Figure 6 and attached Figure 7 As shown, multiple sets of driven gears 340 are arranged in a ring around the outside of the rack column 330. In this embodiment, the multiple sets of driven gears 340 are evenly distributed in a ring to ensure that the extension and retraction of all spray pipes 170 are consistent, avoiding local overspray or underspray, which is especially suitable for treating non-uniformly distributed exhaust gas.

[0051] Furthermore, the swing arm 360 has a traction groove inside, and the traction groove is slidably connected to the first traction block 370. In this embodiment, the slidable connection between the traction groove and the first traction block 370 allows the spray pipe 170 to reciprocate under the action of the traction groove movement.

[0052] It should be noted that a cylinder 380 is installed on the connecting frame 210, and the telescopic end of the cylinder 380 is rotatably connected to the rack column 330 via a bearing. In this embodiment, by adjusting the radial extension and retraction of the spray pipe 170 through the cylinder 380, the spray coverage radius can be adjusted in real time according to the diameter of the tower body 110 and the characteristics of the exhaust gas distribution, such as high concentration at the edge or center. This changes the distribution of the washing liquid within the cross-section of the tower body 110 from a fixed ring to an adjustable ring, thereby improving the coverage rate.

[0053] It should be noted that the cylinder 380 extends and retracts to drive the rack column 330 to rise and fall axially. When the rack column 330 rises and falls, its tooth surface meshes with multiple sets of driven gears 340, driving the driven gears 340 to rotate synchronously.

[0054] Driven gear 340 drives transmission shaft 350 and swing arm 360 to rotate. The traction groove of swing arm 360 applies radial force through first traction block 370, causing first traction block 370 to slide in the traction groove, driving spray pipe 170 to reciprocate outside water supply pipe 320, thereby causing spray pipe 170 to extend and retract radially. When swing arm 360 rotates clockwise, spray pipe 170 extends outward, expanding coverage radius; when rotated counterclockwise, spray pipe 170 retracts inward, reducing coverage radius.

[0055] In yet another embodiment, according to the appendix Figure 8 As shown, the spray pipe 170 has a cavity 171 inside, and water flow channels 172 are provided on both sides of the cavity 171. The water flow channels 172 are connected to the inside of the spray head 180. Sliding cavities 173 are also provided on both sides of the cavity 171. The sliding cavities 173 are slidably connected to the water supply pipe 320. A corrugated sealing pipe 174 is also provided between the sliding cavity 173 and the water supply pipe 320. One end of the corrugated sealing pipe 174 is connected to the sliding cavity 173, and the other end of the corrugated sealing pipe 174 is connected to the water supply pipe 320.

[0056] When the uniformly distributed unit 300 drives the spray pipe 170 to extend and retract radially, the spray pipe 170 and the water supply pipe 320 generate relative displacement: when the spray pipe 170 extends outward, the sliding cavity 173 slides outward along the outer wall of the water supply pipe 320, and the overlap length between the two shortens; when the spray pipe 170 retracts inward, the overlap length increases. During this process, the corrugated sealing pipe 174 undergoes elastic deformation with the relative displacement. When it extends outward, the corrugated pipe is stretched, and when it retracts inward, it is compressed, but the sealed and fixed state at both ends is always maintained, forming a closed flexible connection space that completely wraps the docking area between the sliding cavity 173 and the water supply pipe 320, preventing leakage to the outside.

[0057] In one embodiment, according to the appendix Figure 7 and attached Figure 9 As shown, the spray head 180 is equipped with an anti-clogging unit 400. The anti-clogging unit 400 includes a flexible inner liner 460 installed inside the spray head 180, and a movable cavity is formed between the flexible inner liner 460 and the inner wall of the spray end of the spray head 180. A pressure plate 450 is installed inside the movable cavity, and the pressure plate 450 and the spray end of the spray head 180 are controlled by a synchronous scaling component. The flexible inner liner 460 is made of an acid and alkali resistant and aging resistant elastic material; and the anti-clogging action can be performed synchronously with the spraying process, avoiding downtime for cleaning and ensuring that the spray head 180 always maintains the designed flow rate.

[0058] Furthermore, according to the appendix Figure 9 and attached Figure 10As shown, the synchronous scaling component includes a limiting plate 410 mounted on the spray head 180. The limiting plate 410 has multiple sets of limiting grooves 420 evenly distributed in a ring, and a connecting rod 430 is slidably connected inside the limiting grooves 420. A rotating disk 470 is bearing connected to the limiting plate 410, and multiple sets of arc-shaped grooves 480 are evenly distributed in a ring inside the rotating disk 470. A second traction block 490 is slidably connected inside the arc-shaped grooves 480, and the second traction block 490 is fixedly connected to the connecting rod 430.

[0059] Specifically, each of the connecting rods 430 near the spray head 180 is equipped with a guide post 440, and the guide post 440 passes through the spray head 180 and is fixedly connected to the pressure plate 450. The spray head 180 and the guide post 440 are slidably connected.

[0060] It is important to understand that the rotating disk 470 rotates under the drive of an external force. When the rotating disk 470 rotates, the curved trajectory of the arc-shaped groove 480 forces the second traction block 490 to slide along the groove. The connecting rod 430 is constrained by the limiting groove 420 and can only move radially. Therefore, the circular motion of the rotating disk 470 is converted into the synchronous radial extension and contraction of the connecting rod 430. When the rotating disk 470 rotates clockwise, the arc-shaped groove 480 pushes the second traction block 490 to drive the connecting rod 430 to retract towards the center; when rotating counterclockwise, it extends outward.

[0061] When the connecting rod 430 extends outward, the guide post 440 pushes the pressure plate 450 to move away from the axis, squeezing the flexible inner bushing 460 to cause it to expand radially, tightly fitting the inner wall of the spray head 180 and causing deformation; when the connecting rod 430 retracts towards the center, the guide post 440 pulls the pressure plate 450 to move towards the axis of the spray head 180, the gap between the pressure plate 450 and the inner wall of the spray head 180 increases, and the flexible inner bushing 460 resets under its own elasticity, restoring its fit with the inner wall.

[0062] When the flexible inner liner 460 expands under the pressure of the pressure plate 450, its outer surface rubs violently against the inner wall of the spray head 180. At the same time, the shearing force generated by the deformation can peel off the attached scale, impurity particles or viscous substances. When the pressure plate 450 contracts, the rebound force generated by the reset of the flexible inner liner 460 forms a reverse flush, which discharges the peeled impurities from the nozzle along with the washing liquid, thus preventing impurities from accumulating at the nozzle.

[0063] In other embodiments, according to the appendix Figure 9 and attached Figure 10 As shown, a transmission gear 500 can be installed on the rotating disk 470. The transmission gear 500 can be connected to an external drive gear controlled by a micro motor, or to an external rack plate controlled by an electric push rod. Alternatively, two sets of transmission gears 500 can form a transmission mechanism through a rack and belt and be connected by a micro motor.

[0064] Example 2: According to the appendix Figure 1 To be continued Figure 10 As shown, a method of using a waste gas treatment spray scrubbing tower, employing a waste gas treatment spray scrubbing tower as described in Example 1, includes the following steps:

[0065] S1. The waste gas to be treated is introduced into the tower body 110 through the air inlet 120, so that the waste gas flows upward along the flow channel of the tower body 110, forming a countercurrent contact path with the washing liquid.

[0066] S2. Start the rotating spray unit 200. The spray pipe 170 moves in a circular motion around the central axis of the tower body 110. The centrifugal force of rotation makes the washing liquid droplets evenly distributed, forming a dynamic conical coverage area to eliminate the blind areas at the edge and center of the tower body 110, and drives the airflow to form a rotating turbulence to enhance the relative motion of gas and liquid.

[0067] S3. Synchronously start the uniform distribution unit 300 to make the spray pipe 170 extend and retract radially to adjust the coverage radius, adapt to the waste gas concentration distribution and the tower body 110 diameter, and form a spiral three-dimensional spray net.

[0068] S4. After the washing liquid is atomized by the spray head at 180°, it undergoes two-stage purification with the upward-flowing exhaust gas at the upper and lower sets of filter media at 190°.

[0069] S5. The purified gas is discharged through the outlet 130.

[0070] The embodiments of this specific implementation have been described above. However, this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A waste gas treatment spray scrubbing tower, characterized in that, include: The spray tower body (100) includes a tower body (110), two sets of connecting pipes (160) are installed inside the tower body (110), and a spray pipe (170) is also provided inside the tower body (110), and two sets of spray heads (180) are symmetrically installed on the spray pipe (170). The rotating spray unit (200) connects the upper and lower sets of connecting pipes (160) and the spray pipe (170) through the rotating spray unit (200); The uniform distribution unit (300) includes a connecting ring (310) disposed inside the second annular water supply tray (230). The connecting ring (310) is provided with a rack column (330) inside, and multiple sets of driven gears (340) are meshed on the rack column (330). A drive shaft (350) is mounted on the driven gear (340), and a swing arm (360) is mounted on the drive shaft (350). A first traction block (370) is slidably disposed on the swing arm (360), and the first traction block (370) is fixedly connected to the spray pipe (170). The spray head (180) is provided with an anti-clogging unit (400), the anti-clogging unit (400) includes a flexible inner liner (460) installed inside the spray head (180), and a movable cavity is formed between the flexible inner liner (460) and the inner wall of the spray end of the spray head (180). A pressure plate (450) is provided inside the movable cavity, and the pressure plate (450) and the spray end of the spray head (180) are controlled by a synchronous scaling component. The synchronous scaling component includes a limiting plate (410) mounted on a spray head (180). The limiting plate (410) has multiple sets of limiting grooves (420) evenly distributed in a ring, and a connecting rod (430) is slidably connected inside the limiting grooves (420). A rotating disk (470) is bearing connected to the limiting plate (410), and multiple sets of arc-shaped grooves (480) are evenly distributed in a ring inside the rotating disk (470). A second traction block (490) is slidably connected inside the arc-shaped grooves (480), and the second traction block (490) is fixedly connected to the connecting rod (430). Each of the connecting rods (430) is equipped with a guide post (440) on the side near the spray head (180), and the guide post (440) passes through the spray head (180) and is fixedly connected to the pressure plate (450). The spray head (180) and the guide post (440) are slidably connected.

2. The waste gas treatment spray scrubbing tower according to claim 1, characterized in that, The swing arm (360) has a traction groove inside, and the traction groove is slidably connected to the first traction block (370).

3. The waste gas treatment spray scrubbing tower according to claim 1, characterized in that, The rotating spray unit (200) includes a connecting frame (210) installed inside the tower body (110), on which a first annular water supply tray (220) is installed, and a second annular water supply tray (230) is slidably connected.

4. The waste gas treatment spray scrubbing tower according to claim 3, characterized in that, A cylinder (380) is installed on the connecting frame (210), and the telescopic end of the cylinder (380) is rotatably connected to the rack column (330) through a bearing.

5. A waste gas treatment spray scrubbing tower according to claim 3, characterized in that, The second annular water supply tray (230) is equipped with a first bevel tooth (240), and a second bevel tooth (250) is meshed on the first bevel tooth (240). A connecting shaft (260) is installed on the second bevel tooth (250), and the two sets of connecting shafts (260) pass through the tower body (110) and are connected by a belt pulley transmission mechanism (270). A motor (280) is also installed on the tower body (110), and the output shaft of the motor (280) is fixedly connected to one of the sets of connecting shafts (260).

6. A waste gas treatment spray scrubbing tower according to claim 3, characterized in that, An annular space is formed between the connecting ring (310) and the second annular water supply tray (230). The spray pipe (170) is evenly distributed in the annular space. Water supply pipes (320) are slidably connected to both sides inside the spray pipe (170), and the end of the water supply pipe (320) away from the spray pipe (170) is fixedly connected to the connecting ring (310) and the second annular water supply tray (230).

7. A method of using a waste gas treatment spray scrubbing tower, comprising using a waste gas treatment spray scrubbing tower as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. The waste gas to be treated is introduced into the tower body (110) through the air inlet (120), so that the waste gas flows upward along the flow channel of the tower body (110) to form a countercurrent contact path with the washing liquid. S2. Start the rotating spray unit (200), and make a circular motion around the central axis of the tower body (110) through the spray pipe (170). Use the centrifugal force of rotation to make the washing liquid droplets evenly distributed, forming a dynamic conical coverage area to eliminate the blind area at the edge and center of the tower body (110), and drive the airflow to form a rotating turbulence to enhance the relative motion of gas and liquid. S3. Synchronously start the uniform distribution unit (300) to make the spray pipe (170) extend and retract radially to adjust the coverage radius, adapt to the distribution of exhaust gas concentration and the diameter of the tower body (110), and form a spiral three-dimensional spray net; S4. After the washing liquid is atomized by the spray head (180), it and the upward-flowing exhaust gas are purified in two stages at the upper and lower sets of filter media (190). S5. The purified gas is discharged through the outlet (130).

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