A special spray tower for organic synthesis waste gas treatment

Abstract

This invention relates to the field of waste gas treatment technology and discloses a special spray tower for treating organic synthesis waste gas. The tower includes a tower body, an air inlet for inletting waste gas is located on the outer wall of the bottom end of the tower body, an exhaust port is located at the top end of the tower body, and a water circulation section is located on the side of the tower body. The inner wall of the tower body is arranged from top to bottom as a purification chamber two, a purification chamber one, and an air inlet chamber. An upper spray component is located at the top of the inner wall of purification chamber two, and a lower spray component is located at the top of the inner wall of purification chamber one. The upper and lower spray components are connected to the output end of the water circulation section. This invention achieves deceleration, uniform flow, and guidance of the waste gas through the synergistic effect of the deceleration diffuser and annular channel of the air inlet component, and the conical ring, guide block, and guide vanes of the air inlet chamber. This avoids direct impact of high-speed waste gas on the inner wall of the tower body, the conical ring, and the spray components, while eliminating airflow deviation, ensuring uniform airflow rise, and ensuring uniform airflow around the lower spray pipes, avoiding localized scale buildup and dry spray zones.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and specifically to a special spray tower for treating organic synthesis waste gas. Background Technology

[0002] A spray tower is an industrial waste gas treatment device based on the principle of gas-liquid two-phase contact mass transfer. It purifies pollutants in organic synthesis waste gas through washing, absorption, and neutralization. In organic synthesis waste gas treatment, its core function is to transfer volatile organic compounds, acidic / alkaline gases, and particulate matter from the waste gas to the liquid phase, thereby achieving gas purification. A spray tower mainly consists of a tower body, an air inlet system, a spray system, a packing layer, a demister, a circulating water tank, a circulating water pump, and a dosing and sludge removal system. Waste gas typically enters from the bottom of the tower and flows upwards.

[0003] The exhaust gas at the inlet carries the highest concentration of particulate matter, sticky substances, and potentially high temperatures. Upon entering the tower, the airflow rushes straight in from one side at high speed, deflects, and rises along the wall. This exhaust gas, containing high concentrations of particulate matter, sticky substances, and high temperatures, fails to distribute evenly after entering the scrubbing tower. Instead, it directly impacts the tower wall as a high-speed jet from one side, creating a deflected flow that rises along the wall, concentrating on a specific section of the lower spray pipes. The root cause is the lack of a flow guiding or equalizing device at the tower inlet, preventing effective dissipation of airflow kinetic energy and resulting in a severely uneven flow field. Large, high-inertia particles, with limited airflow direction, directly impact and adhere to the windward side of the pipes, gradually forming thick, loose, or sticky deposits. Simultaneously, sticky substances and coarse particles clog local nozzles, causing a sharp reduction or even interruption of spray volume in that area, creating a "dry zone." The resulting consequences are an imbalance in the liquid-to-gas ratio from top to bottom within the tower, making effective countercurrent scrubbing impossible; high-concentration exhaust gas bypasses the dry zone and rushes directly to the upper layer without any preliminary purification, which not only increases the upper spray load but also causes pollutants such as VOCs, acidic gases, and organic droplets to escape directly due to a lack of contact with the absorbent liquid, ultimately leading to excessive emissions at the outlet, increased risk of localized corrosion in the tower, and a significant decrease in overall treatment efficiency. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a dedicated spray tower for treating organic synthesis waste gas. It effectively solves the problems in existing technologies where the airflow enters the tower and rushes straight up at high speed on one side, deviates, and rises along the wall, directly impacting a section of the lower spray pipe, resulting in severe localized fouling, localized nozzle blockage, and localized dry areas.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a dedicated spray tower for treating organic synthesis waste gas, comprising: The tower body has an air inlet for receiving waste gas on the outer wall at the bottom, an exhaust port for outputting purified gas at the top, and a water circulation section for providing purified liquid on the side of the tower body. The inner wall of the tower is arranged from top to bottom as purification chamber two, purification chamber one and air inlet chamber. The top of the inner wall of purification chamber two is provided with an upper spray component, and the top of the inner wall of purification chamber one is provided with a lower spray component. The upper spray component and the lower spray component are connected to the output end of the water circulation section. An air inlet is provided on the inner wall of the air intake chamber, and the air inlet is connected to the air intake component. A conical ring is fixedly connected to the bottom end of the inner wall of the air intake chamber. A guide block is fixedly connected to the top of the conical ring.

[0006] Furthermore, the air intake chamber includes a diffuser settling zone with an inclined design that is larger at the top and smaller at the bottom. A connecting area is provided at the top of the diffuser settling zone, and the top of the connecting area is connected to the bottom of the purification chamber. A blowpipe is provided at the connection between the connecting area and the purification chamber.

[0007] Furthermore, the cone ring adopts an inverted cone design with the same inclination as the inner wall of the air intake chamber, and the guide block at the top of the cone ring adopts a hemispherical design, with the top of the guide block higher than the top of the inner wall of the air intake.

[0008] Furthermore, the air intake component includes an air intake pipe located on the outer wall of the air intake chamber, and a deceleration diffuser is fixedly connected to the side of the air intake pipe near the air intake chamber. The inner wall of the deceleration diffuser adopts a gradually expanding design.

[0009] Furthermore, the end of the deceleration diffuser away from the intake pipe is fixedly connected to an annular channel, and the outer end of the annular channel adopts a rounded corner and arc transition design.

[0010] Furthermore, the outer surface of the blowpipe is designed with a circular end face, the nozzle of the blowpipe is inclined downward, and the outer wall of the blowpipe is flush with the inner wall of the air inlet chamber.

[0011] Furthermore, a guide vane is fixedly connected to one end of the air inlet near the guide block. The outer wall of the guide vane adopts an arc-shaped curved surface design that matches the taper of the inner wall of the air inlet and the taper of the cone ring. The upper edge of the guide vane is higher than the upper edge of the air inlet, and the lower edge of the side of the guide vane ends below the air inlet.

[0012] Furthermore, the upper spray component includes a fixing frame that is fixedly connected to the inner wall of the purification chamber, a nozzle is provided at the bottom end of the fixing frame, and an outer sleeve is fitted on the outer wall of the nozzle.

[0013] Furthermore, the lower spray component includes a second fixing frame that is fixedly connected to the inner wall of the purification chamber, and a second nozzle is provided at the bottom end of the second fixing frame, the second nozzle being staggered with the first nozzle.

[0014] Furthermore, the outer wall of the second nozzle is fitted with an outer ball sleeve, which is spherically designed.

[0015] The technical solution provided by this invention has the following advantages compared with the prior art: This invention achieves deceleration, uniform flow, and guidance of exhaust gas through the synergistic effect of the deceleration diffuser and annular channel of the air inlet component, and the conical ring, guide block, and guide vane of the air inlet chamber. This avoids high-speed exhaust gas directly impacting the inner wall of the tower, the conical ring, and the spray assembly, while eliminating airflow deviation, ensuring uniform airflow rise, and allowing the lower spray pipe to receive air evenly around it, thus avoiding localized scale buildup and dry spray zones.

[0016] This invention, through its inclined design of a diffuser settling zone (larger at the top and smaller at the bottom), a smooth inverted conical design of the conical ring, a short-amplitude design of the upper-mounted guide vanes, and a targeted cleaning design of the blowpipe, ensures that large, sticky impurities and tar clumps can settle smoothly without being blocked or accumulating. Simultaneously, it reduces sticky deposits on the surfaces of various components, preventing deposits from clogging air ducts and nozzles, and lowering the frequency of equipment maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of an embodiment of the present invention on the left side; Figure 3 This is a schematic cross-sectional view of the overall structure of an embodiment of the present invention on the right side; Figure 4 This is a schematic diagram of the air intake component structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the air intake chamber structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the upper spray component structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the lower spray component structure according to an embodiment of the present invention.

[0019] The labels in the diagram represent: 1. Tower body; 11. Inlet chamber; 111. Diffuser settling zone; 112. Connection zone; 12. Purification chamber one; 13. Purification chamber two; 14. Upper spray component; 141. Fixing frame one; 142. Nozzle one; 143. Outer sleeve; 15. Lower spray component; 151. Fixing frame two; 152. Nozzle two; 153. Outer spherical sleeve; 16. Conical ring; 17. Guide block; 18. Blower pipe; 19. Inlet; 191. Guide vane; 2. Exhaust port; 3. Inlet component; 31. Inlet pipe; 32. Deceleration diffuser pipe; 33. Circular channel; 5. Water circulation section. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to embodiments. Example

[0022] Please see Figures 1-7 This invention provides a dedicated spray tower technology solution for treating organic synthesis waste gas: refer to Figure 1 , Figure 2 and Figure 3 The tower body 1 serves as the main load-bearing structure of the entire equipment. Its internal structure adopts a layered and partitioned design, which is divided into air intake chamber 11, purification chamber one 12 and purification chamber two 13 from bottom to top. This layered layout is not a simple spatial division, but rather a step-by-step treatment of organic synthesis waste gas by combining the treatment logic of organic synthesis waste gas, which ensures thorough purification of waste gas and avoids mutual interference between the various stages.

[0023] An air inlet 3 is installed on the outer wall at the bottom of the tower body 1 to receive the organic synthesis waste gas to be treated, and an exhaust port 2 is installed at the top to discharge the purified gas. A water circulation section 5 is installed on the side to provide a stable supply of purified liquid for the entire spray purification system, forming a closed-loop circulation. This saves water resources and ensures the stability of the purification effect. The special feature of this layout is that the air intake, purification, exhaust, and water circulation functional modules are rationally divided, avoiding the problems of airflow turbulence and liquid-gas interference caused by the mixing of functional modules in traditional spray towers. This makes the entire treatment process more organized and facilitates equipment maintenance and repair.

[0024] The inner walls of the air inlet chamber 11, purification chamber one 12, and purification chamber two 13 are all designed with smooth curved surfaces, without any sharp corners, grooves, or other dead corners for dirt accumulation. This design is suitable for treating viscous pollutants in organic synthesis waste gas, structurally reducing the adhesion and accumulation of viscous substances. Among them, the air inlet chamber 11, as the first stage for waste gas to enter the tower body 1, plays an important role in slowing down the waste gas, equalizing its flow, and allowing impurities to settle. Its special design directly determines the effectiveness of subsequent purification stages. Purification chamber one 12 and purification chamber two 13 are connected vertically, with lower spray nozzles 15 and upper spray nozzles 14 respectively, to achieve staged spray purification of the waste gas. This avoids the problem of incomplete purification in a single spray, while reducing the load on a single spray stage and extending the service life of the nozzles.

[0025] The advantages of this overall structural design are significant: First, the layered and zoned design makes the exhaust gas treatment process clear, with the airflow rising smoothly from the intake chamber 11 to the purification chamber 12 and the purification chamber 2 13 without disorder or short circuits, ensuring that every stream of exhaust gas undergoes thorough spray purification; second, the smooth inner wall design reduces the accumulation of sticky pollutants, lowering the frequency of equipment maintenance; third, the water circulation section 5 is precisely connected to the upper spray component 14 and the lower spray component 15, ensuring a stable supply of purified liquid and avoiding liquid-gas imbalance; fourth, the independent layout of each functional module facilitates the later inspection and replacement of individual modules without affecting the overall operation of the equipment.

[0026] refer to Figure 3 and Figure 5 As the primary link in waste gas treatment, the air intake chamber 11 is designed to address the issues of direct flow and deflection of organic synthesis waste gas when it enters at high speed, as well as the settling of viscous impurities. Specifically, it includes components such as the diffuser settling zone 111, the connecting zone 112, the cone ring 16, the guide block 17, the air inlet 19, the guide vane 191, and the blowpipe 18. These components work together to achieve deceleration, uniform flow, settling, and scale prevention of the waste gas.

[0027] The inlet chamber 11 includes a diffuser-settling zone 111 and a connecting zone 112. The diffuser-settling zone 111 adopts an inclined design that is larger at the top and smaller at the bottom. This special inclined structure is not arbitrarily set, but is combined with the flow characteristics of organic synthesis waste gas to achieve deceleration and diffusion of waste gas and sedimentation of impurities. When the waste gas enters the diffuser-settling zone 111 from the inlet 19, the airflow velocity will naturally decrease due to the gradual expansion of the spatial cross-section. This provides settling time for large particulate sticky impurities and tar agglomerates carried in the waste gas, allowing them to slide down the inclined inner wall of the diffuser-settling zone 111 under the action of gravity to the bottom of the tower body 1, preventing these impurities from entering the subsequent purification chamber and reducing the risk of nozzle clogging.

[0028] The connecting area 112 is located at the top of the diffuser settling zone 111, and its top end connects to the bottom end of the purification chamber 12, serving as a transition. The inner wall of the connecting area 112 also adopts a smooth curved surface design, and it transitions with the inner walls of the diffuser settling zone 111 and the purification chamber 12 using rounded arcs, without any steps or dead corners, thus preventing the formation of eddies in the exhaust gas at the connection point and preventing the accumulation of sticky substances at the connection point. In addition, a blowpipe 18 is provided at the connection point between the connecting area 112 and the purification chamber 12. The position of the blowpipe 18 is precisely designed, corresponding exactly above the cone ring 16 and the guide block 17, providing a guarantee for subsequent anti-fouling cleaning.

[0029] The advantages of the design of the diffusion and settling zone 111 and the connecting zone 112 are: First, the inclined design with a larger upper section and a smaller lower section achieves natural deceleration and diffusion of the exhaust gas, eliminating the need for additional deceleration equipment, which reduces equipment costs and fan load; Second, the inclined inner wall facilitates the settling and sliding of viscous impurities, preventing impurities from accumulating and clogging the air duct; Third, the arc transition design eliminates dead corners for scale accumulation, making it suitable for the viscous working conditions of organic synthesis exhaust gas; Fourth, the transition function of the connecting zone 112 ensures that the airflow smoothly enters the purification chamber 12 from the inlet chamber 11, avoiding uneven spraying caused by sudden changes in airflow.

[0030] The conical ring 16 is fixedly connected to the bottom of the inner wall of the air inlet chamber 11. It adopts an inverted conical design with the same inclination as the inner wall of the air inlet chamber 11. The special feature of this design is that the conical ring 16 and the inner wall of the air inlet chamber 11 form an annular air duct of equal width, ensuring that the airflow can rise evenly and avoiding airflow deviation. The outer surface of the conical ring 16 is designed to be smooth, without any grooves or protrusions, reducing the adhesion of sticky substances. At the same time, the inverted conical structure facilitates the sliding of sedimented impurities along its surface to the bottom of the tower body 1, without forming dead corners for scale accumulation.

[0031] A guide block 17 is fixedly connected to the top of the conical ring 16. The guide block 17 has a hemispherical design, and its top is higher than the top of the inner wall of the air inlet 19. The special hemispherical design allows the airflow to flow smoothly around the guide block 17, preventing turbulence and dirt accumulation caused by airflow impact. At the same time, the guide block 17 can evenly disperse the airflow entering from the air inlet 19, further preventing the airflow from directly impacting the subsequent spray components. The design of the guide block 17 being higher than the air inlet 19 ensures that all incoming exhaust gas can be guided by the guide block 17, preventing some exhaust gas from directly impacting the purification chamber 12 from above the air inlet 19, thus avoiding the formation of a dry spray zone.

[0032] The design advantages of the conical ring 16 and guide block 17 are: First, the inverted conical ring 16 and the inner wall of the air inlet chamber 11 form an annular air duct of equal width, ensuring uniform airflow, eliminating flow deviation, and avoiding uneven airflow on one side of the lower spray pipe; Second, the smooth surface reduces the adhesion of sticky substances, and the inverted conical structure facilitates the sliding of impurities, reducing the risk of scale buildup; Third, the hemispherical guide block 17 guides the airflow to diffuse evenly, avoiding direct airflow and eliminating dead corners for scale buildup; Fourth, the height of the guide block 17 is higher than that of the air inlet 19, ensuring that the exhaust gas is guided throughout the entire range, avoiding short-circuiting and direct discharge of exhaust gas, and laying the foundation for subsequent spray purification.

[0033] The air inlet 19 is located on the inner wall of the air inlet chamber 11 and is connected to the air inlet component 3, serving as the channel for exhaust gas to enter the tower body 1. The special design of the air inlet 19 is that a guide vane 191 is fixedly connected to one end near the guide block 17. The design of the guide vane 191 fully takes into account the characteristics of the high-speed airflow of organic synthesis exhaust gas being concentrated in the upper half of the air inlet 19 and the low flow velocity in the lower half, thus specifically solving the problem of airflow deviation.

[0034] The outer wall of the guide vane 191 adopts an arc-shaped curved surface design that matches the taper of the inner wall of the air intake chamber 11 and the taper of the cone ring 16. This arc-shaped curved surface allows the airflow to flow smoothly around the surface, preventing turbulence and dirt accumulation caused by airflow impact. The upper edge of the guide vane 191 is slightly higher than the upper edge of the air intake 19, and the lower edge of its side ends below the air intake 19. This short, upward-positioned design ensures that the guide vane 191 only covers the high-speed airflow area of ​​the upper half of the air intake 19, while the lower half is completely open, without obstructing the sedimentation path of impurities. The guide vane 191 is only fixedly connected to the air intake 19 on its outer side, while its inner side maintains a uniform gap with the outer wall of the cone ring 16 and is not connected to the cone ring 16, thus avoiding interference with the stability of the cone ring 16 and not narrowing the cross-section of the annular air duct.

[0035] The advantages of the guide vane 191 are: First, its curved surface conforms to the taper of the tower body 1 and the conical ring 16, ensuring smooth airflow without turbulence and reducing the adhesion of viscous substances; second, its upper short-amplitude design precisely targets the high-speed airflow in the upper half, effectively correcting any deviation and guiding it evenly into the annular air duct, preventing the airflow from directly impacting the conical ring 16 and the inner wall of the tower body 1; third, its open lower half design does not obstruct the settling channel below the air inlet 19, ensuring that large viscous impurities and tar clumps can settle smoothly without being blocked by the guide vane 191; and fourth, it is not connected to the conical ring 16, avoiding structural deformation caused by assembly stress and facilitating later maintenance and cleaning.

[0036] The blowpipe 18 is located at the connection between the connecting area 112 and the purification chamber 12. Its exterior features a circular end face design, with the nozzle angled downwards. The outer wall of the blowpipe 18 is flush with the inner wall of the air inlet chamber 11. This unique embedded design prevents the blowpipe 18 from protruding from the inner wall of the tower body 1, avoiding direct airflow impact on the blowpipe 18 and reducing the adhesion and buildup of sticky substances on its surface. The downward-angled nozzle design allows the sprayed cleaning liquid to be precisely aimed at the surfaces of the cone ring 16 and the guide block 17, achieving targeted cleaning of both, while preventing the cleaning liquid from spraying upwards into the purification chamber 12 and interfering with the spray purification effect.

[0037] The advantages of the blowpipe 18 design are: First, the flush-embedded design with no protruding windward surface avoids direct impact of exhaust gas and accumulation of dirt, making it suitable for viscous exhaust gas conditions; second, the downward tilt of the nozzle accurately cleans the viscous dirt on the surface of the cone ring 16 and guide block 17, preventing dirt from clogging the annular air duct; third, the circular end face design further reduces dead angles for dirt accumulation and facilitates cleaning; fourth, the reasonable position design of the blowpipe 18 does not interfere with airflow and impurity settling, achieving dirt prevention without affecting the normal operation of the equipment.

[0038] refer to Figure 1 and Figure 4 As a key component of the exhaust gas inlet tower 1, the air inlet 3 is designed to address the issues of direct flow and turbulence when organic synthesis exhaust gas enters at high speed, while also reducing scale buildup at the air inlet 19. Specifically, it includes the air inlet pipe 31, the deceleration diffuser pipe 32, and the annular channel 33. These three components work together to achieve smooth access and initial deceleration of the exhaust gas.

[0039] The inlet pipe 31 is located on the outer wall of the inlet chamber 11 and is used to connect to the external exhaust gas pipeline to introduce the organic synthesis waste gas to be treated into the tower body 1. A deceleration diffuser pipe 32 is fixedly connected to the side of the inlet pipe 31 near the inlet chamber 11. The inner wall of the deceleration diffuser pipe 32 adopts a gradually expanding design. This gradually expanding structure allows the high-speed flowing waste gas to be naturally decelerated by gradually expanding the cross-section before entering the tower body 1, avoiding direct impact of high-speed waste gas on the inner wall of the tower body 1 and the conical ring 16, reducing the adhesion and scale buildup of viscous substances at the impact points, and providing time for the initial settling of large particulate impurities in the waste gas.

[0040] The end of the deceleration diffuser 32 furthest from the intake pipe 31 is fixedly connected to an annular channel 33, the outer end of which features a rounded corner and arc transition design. The function of the annular channel 33 is to evenly guide the decelerated exhaust gas into the intake port 19, preventing the exhaust gas from concentrating and impacting a certain part of the intake port 19, thus avoiding airflow deviation. The rounded corner and arc transition design eliminates sharp corners and dead angles at the outer end of the annular channel 33, preventing the accumulation of viscous substances at the corners, while allowing the airflow to smoothly enter the intake port 19 without generating turbulence.

[0041] The advantages of the intake component 3 are: First, the gradual expansion design of the deceleration diffuser 32 achieves initial deceleration of the exhaust gas, avoiding high-speed direct impact and reducing scale buildup and equipment wear; Second, the annular channel 33 achieves uniform introduction of exhaust gas, avoiding airflow deviation and laying the foundation for the flow equalization effect of the subsequent guide vanes 191; Third, the rounded corner and arc transition design eliminates dead angles for scale buildup and is suitable for the viscous working conditions of organic synthetic exhaust gas; Fourth, the entire intake component 3 has a simple structure, a firm connection, avoids exhaust gas leakage, and is also easy to connect with external pipelines and for later maintenance.

[0042] refer to Figure 3 , Figure 6 and Figure 7 The inner walls of purification chamber 12 and purification chamber 2 13 are respectively equipped with a lower spray component 15 and an upper spray component 14, both of which are connected to the output end of the water circulation unit 5 to achieve staged spray purification of exhaust gas. The design of the purification chamber focuses on solving problems such as nozzle clogging, uneven spraying, dry spraying zone, and liquid-gas ratio imbalance, ensuring thorough purification of exhaust gas while extending the service life of the nozzles.

[0043] The upper spray component 14 is located at the top of the inner wall of the purification chamber 2 13, and includes a fixing frame 141, a nozzle 142, and an outer sleeve 143. The fixing frame 141 is fixedly connected to the inner wall of the purification chamber 2 13 and is used to fix the nozzle 142. Its structural design is simple and robust, and it adopts a smooth surface design to reduce the adhesion of sticky substances. The nozzle 142 is located at the bottom of the fixing frame 141 and is used to spray purification liquid to achieve deep purification of exhaust gas. The outer sleeve 143 is fitted on the outer wall of the nozzle 142. This is the core special design of the upper spray component 14. The outer sleeve 143 can effectively protect the nozzle 142 and prevent sticky particles and tar carried in the exhaust gas from directly impacting the nozzle 142 nozzle orifice, causing nozzle blockage. At the same time, the design of the outer sleeve 143 does not affect the spray range and atomization effect of the nozzle 142.

[0044] The advantages of the upper spray component 14 are: firstly, the fixing bracket 141 is firmly fixed, ensuring the stable operation of the nozzle 142 and preventing uneven spraying caused by shaking; secondly, the outer sleeve 143 effectively protects the nozzle 142, reducing the risk of clogging and extending the service life of the nozzle; thirdly, the reasonable layout of the nozzle 142 enables comprehensive coverage of the exhaust gas in the purification chamber 13, avoiding dry spraying areas; and fourthly, the precise connection with the water circulation unit 5 ensures a stable supply of purified liquid, avoids liquid-gas ratio imbalance, and improves the deep purification effect.

[0045] The lower spray component 15 is located at the top of the inner wall of the purification chamber 12 and includes a second fixing frame 151, a second nozzle 152, and an outer ball sleeve 153. The second fixing frame 151 is fixedly connected to the inner wall of the purification chamber 12. Its structural design is similar to that of the first fixing frame 141, featuring a smooth surface design to reduce the adhesion of sticky substances and ensure the stability of the second nozzle 152. The second nozzle 152 is located at the bottom of the second fixing frame 151 and is used for primary spray purification of the exhaust gas rising from the intake chamber 11. The second nozzle 152 and the first nozzle 142 are staggered. This staggered layout can effectively compensate for the blind spots of single-stage spraying, ensuring that the exhaust gas can be fully sprayed by the purified liquid during the rising process, avoiding dry spraying areas, and improving purification efficiency.

[0046] Nozzle 2 152 is fitted with an outer spherical sleeve 153. The outer spherical sleeve 153 features a spherical design, which is unique in that it provides 360° protection for nozzle 2 152, preventing viscous impurities from different directions from impacting the nozzle orifice. Simultaneously, its smooth spherical surface makes it difficult for viscous substances to adhere; even if a small amount adheres, it can be easily detached by the spray liquid, further reducing the risk of nozzle clogging. Furthermore, the design of the outer spherical sleeve 153 does not affect the spray angle or atomization effect of nozzle 2 152, ensuring stable primary purification results.

[0047] The advantages of the lower spray component 15 are: firstly, the fixing bracket 2 151 is firmly fixed, ensuring the stable operation of nozzle 2 152; secondly, the staggered design of nozzle 2 152 and nozzle 1 142 eliminates spray blind spots, avoids dry spray areas, and improves purification efficiency; thirdly, the outer ball sleeve 153 provides all-round protection for nozzle 2 152, reducing the risk of clogging and adapting to viscous waste gas conditions; and fourthly, the stable connection with the water circulation unit 5 ensures sufficient supply of purified liquid, avoids liquid-gas ratio imbalance, and provides a guarantee for primary purification.

[0048] Through the coordinated action of the deceleration diffuser pipe 32 and annular channel 33 of the air intake component 3, and the conical ring 16, guide block 17 and guide vane 191 of the air intake chamber 11, the exhaust gas is decelerated, evenly distributed and guided, avoiding direct impact of high-speed exhaust gas on the inner wall of the tower body 1, the conical ring 16 and the spray assembly. At the same time, it eliminates airflow deviation, ensures uniform airflow rise, and allows the lower spray pipe to receive air evenly around it, avoiding local scale buildup and dry spray areas.

[0049] The inclined design of the diffuser settling zone 111 (larger at the top and smaller at the bottom), the smooth inverted cone design of the cone ring 16, the short upper-mounted design of the guide vane 191, and the targeted cleaning design of the blowpipe 18, together ensure that large-particle sticky impurities and tar clumps can settle smoothly without being blocked or accumulating. At the same time, it reduces the sticky deposits on the surface of each component, avoids the accumulation of deposits clogging the air ducts and nozzles, and reduces the frequency of equipment maintenance.

[0050] The outer sleeve 143 of the upper spray component 14, the outer ball sleeve 153 of the lower spray component 15, and the filter assembly of the water circulation unit 5 protect the nozzle from multiple angles, filter impurities in the spray liquid, prevent viscous substances from impacting and clogging the nozzle, extend the service life of the nozzle, and reduce the frequency of nozzle replacement and cleaning.

[0051] The staggered arrangement of the upper spray component 14 and the lower spray component 15 ensures full coverage of the spraying range and eliminates dry spraying areas; the flow regulation component of the water circulation section 5 can flexibly adjust the spray liquid flow rate to ensure a stable liquid-to-gas ratio and avoid a decrease in purification efficiency or waste of water resources due to imbalance in the liquid-to-gas ratio.

[0052] The design of the guide block 17 being higher than the air inlet 19, the flow equalization effect of the guide wing 191, and the layered spray purification design ensure that each stream of exhaust gas can undergo sufficient settling and spray purification, preventing the exhaust gas from being discharged directly from the exhaust port 2 without treatment, thus improving the exhaust gas treatment efficiency.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special spray tower for treating organic synthesis waste gas, characterized in that, include: The tower body (1) has an air inlet (3) for inletting waste gas on the outer wall at the bottom end, an exhaust port (2) for outputting purified gas at the top end of the tower body (1), and a water circulation section (5) for providing purified liquid on the side of the tower body (1). The inner wall of the tower body (1) is arranged from top to bottom as purification chamber two (13), purification chamber one (12) and air inlet chamber (11). The top of the inner wall of purification chamber two (13) is provided with an upper spray component (14), and the top of the inner wall of purification chamber one (12) is provided with a lower spray component (15). The upper spray component (14) and the lower spray component (15) are connected to the output end of the water circulation section (5). An air inlet (19) is provided on the inner wall of the air inlet chamber (11). The air inlet (19) is connected to the air inlet component (3). A cone ring (16) is fixedly connected to the bottom of the inner wall of the air inlet chamber (11). The top end of the cone ring (16) is fixedly connected to a guide block (17).

2. A special spray tower for treating organic synthesis waste gas according to claim 1, characterized in that: The air intake chamber (11) includes a diffuser settling area (111) with an inclined design that is larger at the top and smaller at the bottom. A connecting area (112) is provided at the top of the diffuser settling area (111). The top of the connecting area (112) is connected to the bottom of the purification chamber (12). A blow pipe (18) is provided at the connection between the connecting area (112) and the purification chamber (12).

3. A special spray tower for treating organic synthesis waste gas according to claim 1, characterized in that: The cone ring (16) adopts an inverted cone design with the same inclination as the inner wall of the air intake chamber (11). The guide block (17) at the top of the cone ring (16) adopts a hemispherical design. The top of the guide block (17) is higher than the top of the inner wall of the air intake (19).

4. A special spray tower for treating organic synthesis waste gas according to claim 1, characterized in that: The air intake component (3) includes an air intake pipe (31) located on the outer wall of the air intake chamber (11). A deceleration diffuser pipe (32) is fixedly connected to the side of the air intake pipe (31) near the air intake chamber (11). The inner wall of the deceleration diffuser pipe (32) adopts a gradually expanding design.

5. A special spray tower for treating organic synthesis waste gas according to claim 4, characterized in that: The deceleration diffuser (32) is fixedly connected to an annular channel (33) at the end away from the intake pipe (31), and the outer end of the annular channel (33) adopts a rounded corner and arc transition design.

6. A special spray tower for treating organic synthesis waste gas according to claim 2, characterized in that: The outer side of the blowpipe (18) adopts a circular end face design, the nozzle of the blowpipe (18) is inclined downward, and the outer wall of the blowpipe (18) is flush with the inner wall of the air inlet chamber (11).

7. A special spray tower for treating organic synthesis waste gas according to claim 3, characterized in that: The air inlet (19) is fixedly connected to a guide wing (191) at one end near the guide block (17). The outer wall of the guide wing (191) adopts an arc-shaped curved surface design that matches the taper of the inner wall of the air inlet (11) and the taper of the cone ring (16). The upper edge of the guide wing (191) is higher than the upper edge of the air inlet (19), and the lower edge of the side of the guide wing (191) ends below the air inlet (19).

8. A special spray tower for treating organic synthesis waste gas according to claim 1, characterized in that: The upper spray component (14) includes a fixing frame (141) fixedly connected to the inner wall of the purification chamber (13), a nozzle (142) is provided at the bottom of the fixing frame (141), and an outer sleeve (143) is fitted on the outer wall of the nozzle (142).

9. A special spray tower for treating organic synthesis waste gas according to claim 8, characterized in that: The lower spray component (15) includes a fixed frame two (151) fixedly connected to the inner wall of the purification chamber one (12). The bottom end of the fixed frame two (151) is provided with a nozzle two (152), and the nozzle two (152) and the nozzle one (142) are designed to be staggered.

10. A special spray tower for treating organic synthesis waste gas according to claim 9, characterized in that: The outer wall of the nozzle 2 (152) is fitted with an outer ball sleeve (153), which is spherical in design.

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