A circulating spray device for exhaust gas treatment

Abstract

The present application relates to the technical field of waste gas spray treatment, in particular to a circulating spray device for waste gas treatment, which comprises a water circulating treatment base, a tower body base, an exhaust tower top, treatment tower sections, one-way backflow pipes and one-way water supplement pipes, the treatment tower sections are provided in plurality, the adjacent treatment tower sections are coaxially installed, the treatment tower section comprises a tower body, a spray unit and a spray head assembly, the spray unit is installed inside the tower body, the adjacent tower bodies are fixedly installed, the spherical spray head is elastically rotationally installed at the lower end of the spray head assembly, and the spherical surface of the spherical spray head is provided with through spray holes. The spherical spray head is driven to rotate relative to the spray head assembly, the spray head assembly scrapes the outer side of the rotating spherical spray head, the orientation of the spray hole is continuously changed in the rotation of the rotating spherical spray head, the flow direction of the water flow in the spray hole is changed, the water flow in the changed flow direction continuously generates reverse impact in the spray hole, and the plugging effect of impurities on the spray hole is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of waste gas spray treatment, and in particular to a circulating spray device for waste gas treatment. Background Technology

[0002] Air pollution refers to the phenomenon where pollutants emitted into the atmosphere beyond the environment's self-purification capacity, either naturally or through human activities, lead to a decline in air quality and endanger ecosystems and human health. It is one of the major environmental problems facing the world, involving complex physical, chemical, and biological processes.

[0003] In air pollution control, spray treatment (also known as "spray scrubbing" or "wet scrubbing") is a widely used end-of-pipe treatment technology. It involves atomizing a liquid (usually water or an absorbent with added chemicals) and exposing it to the exhaust gas for scrubbing treatment. High-efficiency activated carbon is a dry purification technology based on the adsorption of porous materials. In exhaust gas treatment, high-efficiency activated carbon is used to absorb harmful substances in the exhaust gas.

[0004] In the spray scrubbing process for waste gas treatment, Chinese patent CN116688689A discloses a high-efficiency dust removal spray tower for waste gas treatment, including a spray tower body with an air inlet pipe and a drain outlet located below the air inlet pipe on the inner wall of the spray tower body. An exhaust port is located at the top of the spray tower body. A demister, an activated carbon layer, and a grid plate are fixedly installed on the inner wall of the spray tower body from top to bottom, with the grid plate located above the air inlet pipe. An atomizing mechanism is also provided on the spray tower body. This invention uses a mud-water separation component to discharge the mixed liquid generated from the purified waste gas into the spray tower body. During the discharge process, it can separate the precipitates and dust particles from the liquid. After separating the precipitates and dust particles, the mixed liquid can be allowed to settle and then reprocessed for reuse, avoiding waste of liquid resources and saving resources.

[0005] In the treatment of exhaust gas by spraying, existing technologies and the aforementioned related technologies have the following drawbacks: dust or high salinity in the exhaust gas can easily cause nozzle blockage, resulting in a reduction in the amount of water sprayed from the nozzles, requiring frequent shutdowns for cleaning, and reducing the efficiency of exhaust gas purification. Summary of the Invention

[0006] In order to reduce the impact of dust-containing or high-salinity exhaust gas on nozzle clogging, the present invention provides a circulating spray device for exhaust gas treatment.

[0007] The present invention provides a circulating spray device for waste gas treatment, which adopts the following technical solution: including: Water circulation treatment base.

[0008] The tower body base is installed on the upper part of the water circulation treatment base, which purifies the water inside the tower body base. The tower body base is connected to the external exhaust pipe.

[0009] The exhaust tower top is located on the upper side of the tower body base.

[0010] The treatment tower section comprises multiple sections, with adjacent sections coaxially installed. Each section includes a tower body, a spray unit, and a nozzle assembly. The spray unit is installed inside the tower body and is fixedly installed between adjacent tower bodies. The nozzle assembly is installed at one end of the spray unit inside the tower body. A spherical nozzle is elastically rotatably mounted at the lower end of the nozzle assembly. The spherical nozzle has a through-hole on its spherical surface. The nozzle assembly can extend under water pressure and drive the spherical nozzle to rotate when the nozzle assembly extends or retracts.

[0011] A one-way return pipe is connected to the water circulation treatment base. The spray unit is located at one end outside the tower body and is connected to the one-way return pipe. The one-way return pipe can supply the purified water from the water circulation treatment base to the spray unit under different pressures.

[0012] It also includes a one-way water supply pipe, which is connected to a one-way return pipe, and the one-way water supply pipe supplies water to the one-way return pipe.

[0013] Optionally, the spray unit includes a main water pipe and multiple water distribution components. The water distribution components are installed horizontally inside the tower body, the main water pipe is located outside the tower body, the main water pipe is connected to a one-way return pipe, the main water pipe and the water distribution components are fixed at the outer end of the tower body, and the spray nozzle assembly is installed at the inner end of the water distribution components.

[0014] Optionally, the nozzle assembly includes: The upper spray pipe is connected to the water distribution assembly.

[0015] The lower nozzle is coaxially inserted into the upper nozzle and can move relative to the upper nozzle. A spherical nozzle is rotatably installed at the lower end of the lower nozzle and can elastically twist relative to the lower end of the lower nozzle.

[0016] The inner end tube is rotatably inserted into the upper end of the upper spray pipe, and the upper end of the lower spray pipe is slidably sleeved on the lower end of the inner end tube. The inner end tube and the lower spray pipe are elastically connected.

[0017] The turbine blades are coaxially mounted inside the inner end tube, and the upper end of the turbine blades is rotatably inserted into the upper spray pipe.

[0018] It also includes a collar, which is rotatably fitted onto the outer side of the lower end of the upper spray pipe. A rope is wound around the spherical nozzle and the lower spray pipe at the axis of rotational installation, and the upper end of the rope is fixed to the bottom surface of the collar.

[0019] Optionally, the water distribution component includes: The outer tube of the vertical box penetrates the inner wall of the tower body at both ends. One end of the outer tube is fixed to the main water pipe outside the tower body. The upper spray pipe slides through the bottom surface of the outer tube. The bottom surface of the outer tube is provided with a hole that matches the upper spray pipe. The two ends of the outer tube are detached by bolts.

[0020] The movable disassembly plate is horizontally inserted into the inner side of the outer tube of the vertical box, and the movable disassembly plate is fixedly sleeved on the upper end of the upper spray pipe.

[0021] It also includes a clamping frame, which is located on the upper side of the movable disassembly plate. A clamping thread rod is threaded through the upper side of one end of the vertical box outer tube outside the tower body. The clamping thread rod is rotatably inserted into the upper surface of the clamping frame at one end inside the vertical box outer tube.

[0022] Optionally, a telescopic tube is sleeved on the outside of the rope. The upper end of the telescopic tube is fixed to the collar, and the lower end of the telescopic tube is rotatably sleeved on the outside of the connecting shaft between the spherical nozzle and the lower spray pipe. The connecting shaft between the spherical nozzle and the lower spray pipe is elastically torsionally connected to the lower end of the telescopic tube.

[0023] Optionally, the outer diameter of the upper end of the upper spray pipe is larger than the outer diameter of the lower end of the upper spray pipe, and the hole on the bottom surface of the outer tube of the vertical box is adapted to the upper end of the upper spray pipe, so that the spherical nozzle, the lower spray pipe and the collar can pass through the hole on the bottom surface of the outer tube of the vertical box.

[0024] The number of upper spray pipes at the bottom of the vertical box outer pipe is multiple, and the multiple upper spray pipes are distributed at equal distances.

[0025] Optionally, multiple vertically distributed speed-changing components are installed inside the tower body, with the speed-changing components located below the nozzle assembly.

[0026] The speed change assembly includes multiple speed change tubes and a ring frame. The ring frame is fixedly installed inside the tower body, and the speed change tubes are vertically connected to the ring frame.

[0027] A through-hole is provided at the axis of the transmission tube.

[0028] Optionally, the inner diameter of the middle part of the gear shift hole is smaller than the inner diameter of the upper and lower ends of the gear shift hole, and the gear shift tubes distributed vertically are staggered within the horizontal range.

[0029] Optionally, the lower end of the lower nozzle is adapted to the spherical shape of the spherical nozzle, the lower end of the lower nozzle is set in a hemispherical frame, the inner diameter of the spherical frame of the lower nozzle is equal to the outer diameter of the spherical nozzle, and the axis of rotation connecting the lower nozzle and the spherical nozzle coincides with the center of the spherical nozzle.

[0030] Optionally, the spherical nozzle has a circular hole structure at its center, the connecting rotation axis of the lower spray pipe and the spherical nozzle is coaxial with the axis of the circular hole structure of the spherical nozzle, the spray hole of the spherical nozzle is connected to the circular hole structure of the spherical nozzle, and the extension line of the spray hole axis of the spherical nozzle coincides with the center of the spherical nozzle.

[0031] In summary, the present invention has the following beneficial technical effects: This invention utilizes the cooperation between the nozzle assembly and the spray unit. Water is pressurized and supplied to the nozzle assembly through a one-way water supply pipe and a one-way return pipe via the spray unit. When there is no blockage inside the spherical nozzle, the nozzle assembly is in a contracted state. When blockage occurs in the nozzle orifice of the spherical nozzle, obstructing the water flow, the nozzle assembly extends under water pressure, causing the spherical nozzle to rotate relative to the nozzle assembly. The nozzle assembly scrapes the outer side of the rotating spherical nozzle, reducing the clogging effect of deposits on its surface. Simultaneously, the rotating spherical nozzle continuously changes the orientation of its nozzles, altering the water flow direction within the nozzles. This altered water flow continuously creates a reverse impact within the nozzles, reducing the clogging effect of impurities.

[0032] This invention utilizes the combined use of turbine blades, an inner end tube, and a lower end tube. Under the impact of water flow, the turbine blades drive the inner end tube and the lower end tube to rotate. The spherical nozzle follows the rotation of the lower end tube. As the spherical nozzle rotates, it further increases the orientation range of the spray holes, increases the range of water flow, and ensures the uniformity of the sprayed water flow.

[0033] This invention, through the setting of the speed-changing tube and speed-changing orifice, allows the exhaust gas to flow upward, carrying water mist through the speed-changing orifice. Since the orifice diameters at both ends of the speed-changing orifice are larger than those at the middle position, the air pressure of the passing airflow first increases and then decreases. The change in airflow pressure enhances the reaction effect of the water mist. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 This is a front view structural diagram in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the tower body in an embodiment of the present invention; Figure 4 This is a schematic diagram of the distribution of the water distribution component and the nozzle component in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the transmission component in an embodiment of the present invention; Figure 6 This is a schematic diagram of the water-dividing component in an embodiment of the present invention; Figure 7 This is a schematic diagram of the nozzle assembly in an embodiment of the present invention; Figure 8 This is a schematic diagram of the lower axial side structure of the nozzle assembly in an embodiment of the present invention; Figure 9 This is a schematic diagram of the distribution of the rope and the spherical nozzle in an embodiment of the present invention.

[0035] Reference numerals: 1. Water circulation treatment base; 2. Tower base; 3. Exhaust tower top; 4. Treatment tower section; 41. Tower body; 42. Spray unit; 421. Main water pipe; 422. Water distribution assembly; 4221. External pipe of vertical box; 4222. Movable disassembly plate; 4223. Pressing frame; 4224. Pressing threaded rod; 43. Nozzle assembly; 431. Upper spray pipe; 432. Lower spray pipe; 433. Inner end pipe; 434. Turbine fan blade; 435. Collar; 436. Rope winding; 437. Telescopic pipe; 44. Spherical nozzle; 45. Speed ​​change assembly; 451. Speed ​​change pipe; 452. Ring frame; 453. Speed ​​change hole; 5. One-way return pipe; 6. One-way water supply pipe. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0037] This invention discloses a circulating spray device for waste gas treatment. For example... Figures 1-4 As shown, it includes a water circulation treatment base 1, a tower base 2, an exhaust tower top 3, a treatment tower section 4, a one-way return pipe 5, and a one-way water supply pipe 6.

[0038] The tower base 2 is installed on the upper part of the water circulation treatment base 1. The water circulation treatment base 1 purifies the water inside the tower base 2. The tower base 2 is connected to the external exhaust pipe. A high-efficiency activated carbon layer is installed inside the tower base 2 to absorb impurities in the exhaust gas.

[0039] External exhaust gas is introduced into the tower base 2 through the exhaust gas pipe.

[0040] In this embodiment, a filter component and a purification component are installed inside the water circulation treatment base 1. Water accumulated in the tower base 2 flows into the water circulation treatment base 1, and the water circulation treatment base 1 purifies the water entering the interior, so that the purified water can be reused, reducing the waste of water resources.

[0041] Multiple treatment tower sections 4 are provided, and adjacent treatment tower sections 4 are coaxially installed. The exhaust gas in the tower base 2 enters the treatment tower section 4.

[0042] The treatment tower section 4 includes a tower body 41, a spray unit 42, and a nozzle assembly 43. The spray unit 42 is installed inside the tower body 41 and is fixedly installed between adjacent tower bodies 41. The nozzle assembly 43 is installed at one end of the spray unit 42 inside the tower body 41. A spherical nozzle 44 is elastically rotatably installed at the lower end of the nozzle assembly 43. The spherical nozzle 44 has a through-hole on its spherical surface. The nozzle assembly 43 can extend under water pressure impact and can drive the spherical nozzle 44 to rotate when the nozzle assembly 43 extends and retracts.

[0043] In this embodiment, a transparent observation window is provided on the surface of the tower body 41 for observing the internal condition of the equipment.

[0044] In this embodiment, a temperature detector is installed on the outside of the tower body 41 to detect the internal temperature, and a vibration detector is installed to detect the vibration of the spray unit 42. By detecting the vibration of the spray head assembly 43 on the spray unit 42, the wear of the spray head assembly 43 can be observed.

[0045] The one-way return pipe 5 is connected to the water circulation treatment base 1. The spray unit 42 is located outside the tower body 41 and is connected to the one-way return pipe 5. The one-way return pipe 5 can supply the water purified by the water circulation treatment base 1 to the spray unit 42 with pressure. The one-way return pipe 5 provides pressure-changing water flow to the spherical nozzle 44. The change in water pressure causes the angle of the water flow sprayed from the nozzle of the spherical nozzle 44 to change accordingly, so that the range of water mist sprayed continuously changes, increasing the uniformity of water mist coverage and improving the absorption efficiency of waste gas treatment.

[0046] The one-way water supply pipe 6 is connected to the one-way return pipe 5, and the one-way water supply pipe 6 supplies water to the one-way return pipe 5.

[0047] The one-way water supply pipe 6 is connected to the external water supply equipment. The external water supply equipment replenishes water to the one-way return pipe 5 through the one-way water supply pipe 6 to replenish the water inside the equipment. The water flow in the one-way return pipe 5 can only be supplied to the spray unit 42 in one direction. The one-way water supply pipe 6 fills the one-way return pipe 5 with water in one direction.

[0048] like Figure 5 As shown, in this embodiment, multiple speed-changing components 45 are installed on the inner side of the tower body 41, and the speed-changing components 45 are located below the nozzle assembly 43.

[0049] The speed change assembly 45 includes multiple speed change tubes 451 and a ring frame 452. The ring frame 452 is fixedly installed inside the tower body 41. The speed change tubes 451 are vertically connected to the ring frame 452. A speed change hole 453 is provided at the axis of the speed change tubes 451.

[0050] The inner diameter of the middle part of the gear shift hole 453 is smaller than the inner diameter of the upper and lower ends of the gear shift hole 453.

[0051] Furthermore, the diameter of the variable speed orifice 453 changes smoothly in a curve between its two ends and the middle part. When the airflow passes through the variable speed orifice 453, the exhaust gas forms an upward airflow. As the upward airflow carries water mist through the variable speed orifice 453 with its changing diameter, the airflow pressure changes. This pressure change increases the movement of particles inside the exhaust gas, increases the contact effect between the water mist and the exhaust gas, and thus increases the absorption of particles inside the exhaust gas by the water mist.

[0052] In this embodiment, the vertically distributed speed-changing tubes 451 are staggered within a horizontal range. The staggered arrangement of the vertically distributed speed-changing tubes 451 allows the upward-flowing airflow to pass through the interior of the speed-changing tubes 451. Furthermore, the speed-changing tubes 451 are provided on at least two sides. As the number of layers increases, the effect on changing the airflow increases.

[0053] like Figures 6-9 As shown, in this embodiment, the spray unit 42 includes a main water pipe 421 and multiple water distribution components 422. The water distribution components 422 are installed horizontally inside the tower body 41. The main water pipe 421 is located outside the tower body 41 and is connected to a one-way return pipe 5. The main water pipe 421 and the water distribution components 422 are fixed at one end outside the tower body 41. The nozzle assembly 43 is installed at one end of the water distribution components 422 inside the tower body 41. The one-way return pipe 5 fills the water distribution components 422 with water through the main water pipe 421.

[0054] The nozzle assembly 43 includes an upper nozzle 431, a lower nozzle 432, an inner end pipe 433, a turbine fan blade 434, and a collar 435.

[0055] The upper spray pipe 431 is connected to the water distribution assembly 422, and the lower spray pipe 432 is coaxially inserted into the upper spray pipe 431. The lower spray pipe 432 can move relative to the upper spray pipe 431. The spherical nozzle 44 is rotatably installed at the lower end of the lower spray pipe 432. The spherical nozzle 44 elastically twists relative to the lower end of the lower spray pipe 432. The spherical nozzle 44 and the lower spray pipe 432 are elastically connected by a torsion spring.

[0056] The inner end tube 433 is rotatably inserted into the upper end of the upper spray pipe 431, and the upper end of the lower spray pipe 432 is slidably sleeved on the lower end of the inner end tube 433. The inner end tube 433 and the lower spray pipe 432 are elastically connected.

[0057] In this embodiment, the inner end tube 433 and the lower spray pipe 432 are connected by a vertically arranged straight spring. When the lower spray pipe 432 is pulled closer to the inner end tube 433, and the nozzle of the spherical nozzle 44 is not blocked, the lower spray pipe 432 is located at the uppermost position under the pull of the straight spring when the spherical nozzle 44 is impacted by the water flow. As the impurities attached to the spherical nozzle 44 increase, the permeability of the nozzle of the spherical nozzle 44 gradually decreases, and the water pressure impact on the spherical nozzle 44 gradually increases. Under the water pressure, the lower spray pipe 432 is gradually pulled downward.

[0058] The turbine blade 434 is coaxially mounted inside the inner end pipe 433, and the upper end of the turbine blade 434 is rotatably inserted into the upper nozzle 431.

[0059] In this embodiment, the turbine blade 434 rotates under the impact of water flow. During the rotation of the turbine blade 434, the spherical nozzle 44 rotates around the axis of the lower nozzle 432 through the inner end pipe 433 and the lower nozzle 432. During the rotation of the spherical nozzle 44, the water flow ejected from the nozzle rotates synchronously, increasing the uniformity of water flow coverage in the horizontal range.

[0060] The collar 435 is rotatably sleeved on the outer side of the lower end of the upper spray pipe 431. The spherical nozzle 44 and the lower spray pipe 432 are rotatably connected by a rope 436. The upper end of the rope 436 is fixed to the bottom surface of the collar 435. The two ends of the spherical nozzle 44 are round rods, and the rope 436 is wound around the round rod part of the spherical nozzle 44.

[0061] In this embodiment, when the lower nozzle 432 is at its uppermost position, the elastic connection between the spherical nozzle 44 and the lower nozzle 432 winds the rope 436. As impurities increasingly clog the nozzle orifice of the spherical nozzle 44, the lower nozzle 432 gradually moves downward under water pressure, gradually pulling the rope 436 taut. This pulls the rope 436 out from the round rod portion of the spherical nozzle 44, causing the spherical nozzle 44 to rotate up and down. The rotating spherical nozzle 44 scrapes against the lower end of the lower nozzle 432. The spherical nozzle 44 is wiped to remove impurities attached to its outer side. When the nozzle is inside the lower spray pipe 432, water flows into the nozzle, and when the nozzle is outside the lower spray pipe 432, water flows out of the nozzle. As the spherical nozzle 44 rotates, it continuously changes the orientation of the nozzle, which changes the direction of the water flow inside the nozzle. The water flow that changes direction continuously generates a reverse impact on the nozzle, reducing the clogging effect of impurities on the nozzle, increasing the service life of the spherical nozzle 44, and reducing the maintenance frequency.

[0062] A telescopic tube 437 is sleeved on the outside of the rope 436. The upper end of the telescopic tube 437 is fixed to the collar 435, and the lower end of the telescopic tube 437 is rotatably sleeved on the outside of the connecting shaft between the spherical nozzle 44 and the lower spray pipe 432. The connecting shaft between the spherical nozzle 44 and the lower spray pipe 432 is elastically torsionally connected to the lower end of the telescopic tube 437.

[0063] As the lower nozzle 432 rotates, it drives the collar 435 to rotate synchronously via the telescopic tube 437. At the same time, the telescopic tube 437 prevents the rope 436 from detaching from the round rod part of the spherical nozzle 44, thus limiting the range in which the rope 436 is wrapped around the spherical nozzle 44.

[0064] The lower end of the lower nozzle 432 is adapted to the spherical shape of the spherical nozzle 44. The lower end of the lower nozzle 432 is set in a hemispherical frame. The inner diameter of the spherical frame of the lower nozzle 432 is equal to the outer diameter of the spherical nozzle 44. The axis of rotation connecting the lower nozzle 432 and the spherical nozzle 44 coincides with the center of the spherical nozzle 44. As the spherical nozzle 44 rotates relative to the lower nozzle 432, the lower end of the lower nozzle 432 can scrape the outer spherical surface of the spherical nozzle 44, thus initially cleaning the impurities attached to the outer surface of the spherical nozzle 44.

[0065] The spherical nozzle 44 has a circular hole structure at its center. The connecting rotation axis of the lower spray pipe 432 and the spherical nozzle 44 is coaxial with the axis of the circular hole structure of the spherical nozzle 44. The nozzle orifice of the spherical nozzle 44 is connected to the circular hole structure of the spherical nozzle 44. The extension line of the nozzle axis of the spherical nozzle 44 coincides with the center of the spherical nozzle 44, so that the nozzles on the outside of the spherical nozzle 44 are divergent, which maximizes the coverage of the water flow sprayed by the spherical nozzle 44. Then, the unidirectional return pipe 5 provides the spherical nozzle 44 with a variable pressure water flow, so that the sprayed water mist range is constantly changing, which further increases the coverage uniformity of the water flow sprayed by the spherical nozzle 44.

[0066] The water distribution assembly 422 includes an outer pipe 4221 for the vertical tank, a movable disassembly plate 4222, and a clamping frame 4223.

[0067] The two ends of the outer tube 4221 of the vertical box penetrate the inner wall of the tower body 41. The outer end of the outer tube 4221 of the vertical box is fixed to the main water pipe 421 outside the tower body 41. The upper spray pipe 431 slides through the bottom surface of the outer tube 4221 of the vertical box. The bottom surface of the outer tube 4221 of the vertical box has a hole that matches the upper spray pipe 431. The two ends of the outer tube 4221 of the vertical box are disassembled by bolts. The two ends of the outer tube 4221 of the vertical box can be opened by removing the bolts.

[0068] The movable disassembly plate 4222 is horizontally inserted into the inner side of the outer tube 4221 of the vertical box, and the movable disassembly plate 4222 is fixedly sleeved on the upper end of the upper spray pipe 431.

[0069] The clamping frame 4223 is located on the upper side of the movable disassembly plate 4222. The upper side of the outer tube 4221 of the vertical box is located outside the tower body 41 and has a clamping thread rod 4224 threaded through it. The clamping thread rod 4224 is located inside the outer tube 4221 of the vertical box and is rotatably inserted into the upper surface of the clamping frame 4223.

[0070] In this embodiment, a sealing gasket is provided between the bottom of the movable disassembly plate 4222 and the outer tube 4221 of the vertical box. After the threaded rod 4224 engages with the outer tube 4221 of the vertical box and pushes the clamping frame 4223 to press the movable disassembly plate 4222, the sealing gasket increases the sealing between the movable disassembly plate 4222 and the outer tube 4221 of the vertical box.

[0071] The outer diameter of the upper end of the upper nozzle 431 is larger than the outer diameter of the lower end of the upper nozzle 431. The hole on the bottom surface of the outer tube 4221 of the vertical box is adapted to the upper end of the upper nozzle 431. The spherical nozzle 44, the lower nozzle 432 and the collar 435 can pass through the hole on the bottom surface of the outer tube 4221 of the vertical box.

[0072] In this embodiment, after rotating the clamping threaded rod 4224 to move the clamping frame 4223 upward, the maintenance personnel can push the movable disassembly plate 4222 upward relative to the vertical box outer tube 4221, pull the spherical nozzle 44, the lower spray pipe 432 and the collar 435 into the vertical box outer tube 4221, and then pull the above-mentioned components out from one end of the vertical box outer tube 4221. Thus, the nozzle assembly 43 and the spherical nozzle 44 can be repaired and replaced without disassembling the entire tower body 41.

[0073] The working principle is as follows: exhaust gas is filled into the tower body 41 through the tower base 2. External water source fills the one-way return pipe 5 through the one-way water supply pipe 6. Water is supplied to the spherical nozzle 44 through the spray unit 42 and the nozzle assembly 43, so that the water mist is sprayed out through the nozzle hole of the spherical nozzle 44. The sprayed water mist sprays and washes the rising exhaust gas. The water flowing to the bottom enters the water circulation treatment base 1. The water circulation treatment base 1 purifies the water used. Then, it is refilled into the spray unit 42 through the one-way return pipe 5 to increase the water utilization rate.

[0074] When there is no blockage inside the spherical nozzle 44, the nozzle assembly 43 is in a retracted state. When the nozzle orifice of the spherical nozzle 44 becomes blocked and obstructs the water flow, the nozzle assembly 43 extends under water pressure, causing the spherical nozzle 44 to rotate relative to the nozzle assembly 43. The nozzle assembly 43 scrapes the outside of the rotating spherical nozzle 44, reducing the clogging effect of the deposits on the surface of the spherical nozzle 44. At the same time, the rotating spherical nozzle 44 continuously changes the orientation of the nozzle as it rotates, causing the water flow direction inside the nozzle to change. The water flow that changes direction continuously impacts the impurities inside the nozzle in the opposite direction, increasing the permeability of the nozzle.

[0075] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A circulating spray device for treating waste gas, characterized in that, include: Water circulation treatment base (1); Tower base (2), the tower base (2) is installed on the upper part of the water circulation treatment base (1), the water circulation treatment base (1) purifies the water in the tower base (2), and the tower base (2) is connected to the external exhaust pipe; The exhaust tower top (3) is located on the upper side of the tower base (2); The processing tower section (4) is provided in multiple ways. The processing tower sections (4) are coaxially installed between adjacent processing tower sections (4). The processing tower section (4) includes a tower body (41), a spray unit (42) and a nozzle assembly (43). The spray unit (42) is installed inside the tower body (41) and is fixedly installed between adjacent tower bodies (41). The nozzle assembly (43) is installed at one end of the spray unit (42) inside the tower body (41). A spherical nozzle (44) is elastically rotatably installed at the lower end of the nozzle assembly (43). The spherical nozzle (44) has a through-hole on its spherical surface. The nozzle assembly (43) can extend under water pressure impact and can drive the spherical nozzle (44) to rotate when the nozzle assembly (43) extends and retracts. One-way return pipe (5), the one-way return pipe (5) is connected to the water circulation treatment base (1), the spray unit (42) is located outside the tower body (41) and is connected to the one-way return pipe (5). The one-way return pipe (5) can change the pressure of the water purified by the water circulation treatment base (1) and supply it to the spray unit (42). It also includes a one-way water supply pipe (6), which is connected to a one-way return pipe (5), and the one-way water supply pipe (6) supplies water to the one-way return pipe (5).

2. The circulating spray device for waste gas treatment according to claim 1, characterized in that: The spray unit (42) includes a main water pipe (421) and multiple water distribution components (422). The water distribution components (422) are installed horizontally inside the tower body (41). The main water pipe (421) is located outside the tower body (41). The main water pipe (421) is connected to a one-way return pipe (5). The main water pipe (421) and the water distribution components (422) are fixed at one end outside the tower body (41). The nozzle assembly (43) is installed at one end of the water distribution components (422) inside the tower body (41).

3. A circulating spray device for waste gas treatment according to claim 2, characterized in that: The nozzle assembly (43) includes: The upper spray pipe (431) is connected to the water distribution assembly (422); The lower nozzle (432) is coaxially inserted into the upper nozzle (431). The lower nozzle (432) can move relative to the upper nozzle (431). The spherical nozzle (44) is rotatably installed at the lower end of the lower nozzle (432). The spherical nozzle (44) elastically twists relative to the lower end of the lower nozzle (432). The inner end tube (433) is rotatably inserted into the upper end of the upper spray pipe (431), and the upper end of the lower spray pipe (432) is slidably sleeved on the lower end of the inner end tube (433). The inner end tube (433) and the lower spray pipe (432) are elastically connected. Turbine fan blade (434), the turbine fan blade (434) is coaxially installed inside the inner end pipe (433), and the upper end of the turbine fan blade (434) is rotatably inserted into the upper nozzle (431); It also includes a collar (435), which is rotatably sleeved on the outer side of the lower end of the upper spray pipe (431). A rope (436) is wound around the axis of rotation of the spherical nozzle (44) and the lower spray pipe (432), and the upper end of the rope (436) is fixed to the bottom surface of the collar (435).

4. A circulating spray device for waste gas treatment according to claim 3, characterized in that: The water distribution component (422) includes: The outer tube of the vertical box (4221) penetrates the inner wall of the tower body (41) at both ends. The outer tube of the vertical box (4221) is located outside the tower body (41) and is fixed to the main water pipe (421). The upper spray pipe (431) slides through the bottom surface of the outer tube of the vertical box (4221). The bottom surface of the outer tube of the vertical box (4221) is provided with a hole that matches the upper spray pipe (431). The two ends of the outer tube of the vertical box (4221) are disassembled by bolts. Movable disassembly plate (4222), which is horizontally inserted into the inner side of the outer tube (4221) of the vertical box, and fixedly sleeved on the upper end of the upper spray pipe (431); It also includes a clamping frame (4223), which is located on the upper side of the movable disassembly plate (4222). The upper side of the outer tube of the vertical box (4221) located outside the tower body (41) is threaded with a clamping thread rod (4224). The end of the clamping thread rod (4224) located inside the outer tube of the vertical box (4221) is rotatably inserted into the upper surface of the clamping frame (4223).

5. A circulating spray device for waste gas treatment according to claim 3, characterized in that: A telescopic tube (437) is sleeved on the outside of the winding rope (436). The upper end of the telescopic tube (437) is fixed to the collar (435), and the lower end of the telescopic tube (437) is rotatably sleeved on the outside of the connecting shaft between the spherical nozzle (44) and the lower spray pipe (432). The connecting shaft between the spherical nozzle (44) and the lower spray pipe (432) is elastically twisted to the lower end of the telescopic tube (437).

6. A circulating spray device for waste gas treatment according to claim 4, characterized in that: The outer diameter of the upper end of the upper spray pipe (431) is larger than the outer diameter of the lower end of the upper spray pipe (431). The hole on the bottom surface of the vertical box outer pipe (4221) is adapted to the upper end of the upper spray pipe (431). The spherical nozzle (44), the lower spray pipe (432) and the collar (435) can pass through the hole on the bottom surface of the vertical box outer pipe (4221). The number of upper spray pipes (431) at the bottom of the outer tube (4221) of the vertical box is multiple, and the multiple upper spray pipes (431) are distributed at equal distances.

7. A circulating spray device for waste gas treatment according to claim 1, characterized in that: Multiple speed-changing components (45) are installed on the inner side of the tower body (41), and the speed-changing components (45) are located below the nozzle assembly (43). The speed change assembly (45) includes multiple speed change tubes (451) and a ring frame (452). The ring frame (452) is fixedly installed inside the tower body (41), and the speed change tubes (451) are vertically connected to the ring frame (452). The gear tube (451) has a gear hole (453) that runs vertically through the shaft.

8. A circulating spray device for treating waste gas according to claim 7, characterized in that: The inner diameter of the middle part of the speed change hole (453) is smaller than the inner diameter of the upper and lower ends of the speed change hole (453), and the speed change tubes (451) distributed vertically are staggered within the horizontal range.

9. A circulating spray device for waste gas treatment according to claim 3, characterized in that: The lower end of the lower nozzle (432) is adapted to the spherical shape of the spherical nozzle (44). The lower end of the lower nozzle (432) is set in a hemispherical frame. The inner diameter of the spherical frame of the lower nozzle (432) is equal to the outer diameter of the spherical nozzle (44). The axis of rotation connecting the lower nozzle (432) and the spherical nozzle (44) coincides with the center of the spherical nozzle (44).

10. A circulating spray device for waste gas treatment according to claim 3, characterized in that: The spherical nozzle (44) has a circular hole structure at its center. The connecting rotation axis of the lower nozzle (432) and the spherical nozzle (44) is coaxial with the axis of the circular hole structure of the spherical nozzle (44). The nozzle orifice of the spherical nozzle (44) is connected to the circular hole structure of the spherical nozzle (44). The extension line of the nozzle axis of the spherical nozzle (44) coincides with the center of the spherical nozzle (44).

Images