Venturi scrubber based wet dust removal

Abstract

This invention provides a Venturi scrubber based on wet dust removal, relating to the field of Venturi scrubbers, including: a Venturi assembly, which consists of a switching mechanism, a tube body mechanism, and a linkage mechanism. The throat seat integrates three sets of accelerating narrow channels with different inner diameters. Through differentiated aperture design, multiple gas acceleration parameters are formed, allowing for flexible switching based on different dust concentrations, particle size distributions, or gas flow rates. Furthermore, the spray seat can rotate along the air inlet pipe axis, driving the spray seat to perform radial atomization spraying in a rotating manner, forming a 360° spiral liquid curtain covering the entire pipe cross-section, completely eliminating the gas-liquid contact blind zone. This solves the problems of existing Venturi scrubbers with fixed throat section inner diameters, requiring frequent throat replacements when handling different gas conditions, resulting in cumbersome installation and disassembly, low efficiency, and the inability to adjust the spray position and angle of the atomizing nozzle, easily creating contact blind zones when gas flows through the throat.

Description

Technical Field

[0001] This invention relates to the field of Venturi scrubber technology, and more particularly to a Venturi scrubber based on wet dust removal. Background Technology

[0002] A Venturi scrubber is a wet dust removal device that utilizes the Venturi effect. It accelerates airflow through a constriction tube and atomizes liquid through a throat, causing high-speed mixing of gas and liquid to capture dust. The gas is then separated and purified by a diffuser and a cyclone separator. Its function is to efficiently remove pollutants such as dust and acidic gases from industrial waste gas, especially fine particles. At the same time, it can simultaneously achieve multiple purification processes such as cooling and desulfurization.

[0003] Existing Venturi scrubbers have the following disadvantages when in use:

[0004] 1. The throat section adopts a fixed structure design, which means that the acceleration effect on the gas is always maintained within a fixed parameter range. When dealing with gases under different working conditions (such as large differences in dust concentration, particle size distribution or gas flow rate), it is necessary to frequently replace throat sections of different specifications. This not only makes the installation and disassembly operations cumbersome, but also significantly reduces the operating efficiency of the equipment.

[0005] 2. The spray position and angle of its atomizing nozzle lack an adjustable mechanism. When the gas flows through the throat section, a gas-liquid contact blind zone is easily formed in a specific area of ​​the pipe cross section, which affects the full mixing of the gas and liquid phases, resulting in fluctuations in dust collection efficiency and making it difficult to guarantee the stability of equipment operation. Summary of the Invention

[0006] This invention relates to a Venturi scrubber based on wet dust removal, which has a Venturi assembly in which the tube structure can break liquid into extremely fine droplets, forming a large number of gas-liquid mixtures. The pollutant particles or molecules in the gas come into full contact with the droplets, and the droplets carrying pollutants are separated by a cyclone separator, thereby removing the pollutants. It is convenient and flexible to use. At the same time, the throat seat has three sets of accelerating narrow channels with different inner diameters, which can adapt to the dust removal needs of different gases and have a variety of gas acceleration parameters that can be switched according to actual dust removal needs. In addition, under the action of the linkage mechanism and the gas, the spray seat can rotate during dust removal, thereby realizing the radial rotation of the liquid along the air inlet pipe, increasing the gas-liquid mixing range and effect, eliminating the gas-liquid contact blind zone, greatly improving the dust removal effect, and exhibiting strong flexibility, stability and practicality.

[0007] The present invention provides a Venturi scrubber based on wet dust removal, specifically including: a fixed base and a cyclone separator, wherein the cyclone separator is fixedly installed on the top of the fixed base; and also includes a Venturi assembly, wherein the Venturi assembly includes a switching mechanism and a tube body mechanism;

[0008] The switching mechanism includes a positioning seat, a switching motor, an electric push rod, and a retainer. The positioning seat is fixedly installed on the top of the fixed seat, and the switching motor is fixedly installed on the side of the positioning seat. The electric push rod is fixedly installed on the outside of the positioning seat. The tube body mechanism includes an air inlet pipe, a diffuser pipe, and a throat pipe seat. The air inlet pipe and the diffuser pipe are both fixedly installed on the top of the fixed seat, and the throat pipe seat is rotatably connected inside the positioning seat. The air inlet pipe and the diffuser pipe are symmetrically arranged on both sides of the throat pipe seat, and one end of the diffuser pipe is connected to the air inlet of the cyclone separator. The retainer is inserted into the inside of the throat pipe seat, and the switching motor and the throat pipe seat are connected by a gear set.

[0009] Furthermore, the throat seat has a throat channel inside, and there are three sets of throat channels arranged in a ring array inside the throat seat. The number of throat channels is not limited to three sets, and the number can be increased or decreased.

[0010] Furthermore, the throat passage consists of a constriction channel, an acceleration narrow channel, and a diffusion channel. The two ends of the constriction channel are connected to the air intake pipe and the acceleration narrow channel, respectively, and the two ends of the diffusion channel are connected to the acceleration narrow channel and the diffusion pipe, respectively.

[0011] Furthermore, the cross-sectional shape of the contraction channel and the diffusion channel is trapezoidal, and the larger cross-section of the contraction channel and the diffusion channel faces the intake pipe and the diffusion pipe respectively. The area of ​​the larger cross-section of the contraction channel and the diffusion channel is the same as the cross-sectional area of ​​the channel at the connection between the intake pipe and the diffusion pipe. The cross-sections of the acceleration narrow channels of the three sets of throat channels are different.

[0012] Furthermore, the tube body mechanism also includes a spray seat, an atomizing nozzle is provided on the outside of the spray seat, and the spray seat is rotatably connected to the inside of the air inlet pipe. The inside of the air inlet pipe is provided with a liquid supply channel, and the inside of the spray seat is provided with a rotating channel. The two ends of the liquid supply channel are respectively connected to a liquid supply device and one end of the rotating channel, and the other end of the rotating channel is connected to the atomizing nozzle.

[0013] Furthermore, the Venturi assembly also includes a linkage mechanism, which includes a linkage shaft and a synchronization block. The linkage shaft is rotatably connected inside the throat seat, and the synchronization block is inserted into the cage. The linkage mechanism is provided in a set inside each throat channel, and the synchronization block is located inside the contraction channel. One end of the linkage shaft is provided with a linkage fan blade, and the linkage fan blade is located inside the diffusion channel.

[0014] Furthermore, the cross-section of the shaft at the other end of the linkage shaft is a regular polygon, and the inside of the synchronization block is provided with a synchronization groove, and the shaft part of the regular polygon cross-section of the linkage shaft is inserted into the inside of the synchronization groove.

[0015] Furthermore, the side of the synchronization block is provided with a positioning spring, and the two ends of the positioning spring abut against the side of the synchronization block and the inside of the throat seat, respectively.

[0016] Furthermore, the outside of the synchronization block is provided with a spline block, and the side of the spray seat is provided with a spline groove, with the spline block inserted into the inside of the spline groove.

[0017] Furthermore, the electric push rod has a clutch lever on its outside and a clutch slot on its outside, with the clutch lever inserted into the clutch slot.

[0018] This invention provides a Venturi scrubber based on wet dust removal, which has the following beneficial effects:

[0019] 1. The throat seat integrates three sets of narrow acceleration channels with different inner diameters. Through differentiated aperture design, multiple gas acceleration parameters are formed, which can be flexibly switched for different working conditions such as dust concentration, particle size distribution or gas flow rate, avoiding the drawback of the need to frequently change specifications of traditional fixed throats.

[0020] 2. Under the interaction of the linkage mechanism and the gas, the spray seat can rotate along the axis of the air inlet pipe, driving the spray seat to perform radial atomization spraying in a rotating manner, forming a 360° spiral liquid curtain covering the entire pipe cross section, completely eliminating the blind zone of gas-liquid contact, and improving dust collection efficiency by enhancing the turbulent mixing effect. Compared with the traditional fixed spray structure, the gas-liquid contact area is expanded and the dust removal stability is significantly enhanced. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0023] In the attached diagram:

[0024] Figure 1 A schematic diagram of the structure of the present invention is shown.

[0025] Figure 2 A schematic diagram of the internal structure of the present invention is shown.

[0026] Figure 3 The present invention is shown. Figure 2 Enlarged structural diagram of part A in the middle.

[0027] Figure 4 The present invention is shown. Figure 2 Enlarged structural diagram of part B in the middle.

[0028] Figure 5 The present invention is shown. Figure 2Enlarged structural diagram of part C in the middle.

[0029] Figure 6 A schematic diagram of the disassembled intake pipe of the present invention is shown.

[0030] Figure 7 A schematic diagram of the throat seat of the present invention is shown.

[0031] Figure 8 A schematic diagram of the disassembled linkage mechanism of the present invention is shown.

[0032] Figure 9 A schematic diagram of the disassembled switching mechanism of the present invention is shown.

[0033] Figure 10 The present invention is shown. Figure 2 A schematic diagram of the internal structure of the electric actuator after it retracts.

[0034] Figure 11 The present invention is shown. Figure 10 Enlarged structural diagram of part D in the middle.

[0035] Figure 12 This invention demonstrates the replacement Figure 2 A schematic diagram of the internal structure of the throat tube after use.

[0036] List of reference numerals

[0037] 1. Fixed base;

[0038] 2. Cyclone separator;

[0039] 3. Switching mechanism; 301. Positioning seat; 302. Switching motor; 303. Electric push rod; 3031. Clutch lever; 304. Retainer; 3041. Clutch slot;

[0040] 4. Tube body structure; 401. Air inlet pipe; 4011. Liquid supply channel; 402. Diffuser tube; 403. Throat seat; 431. Throat channel; 4311. Contraction channel; 4312. Acceleration narrow channel; 4313. Diffuser channel; 404. Spray seat; 4041. Rotation channel; 4042. Spline groove;

[0041] 5. Linkage mechanism; 501. Linkage shaft; 5011. Linkage fan blade; 502. Synchronization block; 5021. Synchronization groove; 5022. Alignment top spring; 5023. Spline block.

[0042] It should be noted that, Figure 12 The hollow black arrow indicates the direction of gas flow, and the solid black arrow indicates the direction of liquid injection. Detailed Implementation

[0043] 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. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please refer to Figures 1 to 12 Example 1:

[0045] This invention proposes a Venturi scrubber based on wet dust removal, comprising: a fixed base 1 and a cyclone separator 2, the cyclone separator 2 being fixedly installed on the top of the fixed base 1; and a Venturi assembly, the Venturi assembly including a switching mechanism 3 and a tube body mechanism 4.

[0046] The switching mechanism 3 includes a positioning seat 301, a switching motor 302, an electric push rod 303, and a retainer 304. The positioning seat 301 is fixedly installed on the top of the fixed seat 1, and the switching motor 302 is fixedly installed on the side of the positioning seat 301. The electric push rod 303 is fixedly installed on the outside of the positioning seat 301. The pipe body mechanism 4 includes an air inlet pipe 401, a diffuser pipe 402, and a throat seat 403. The air inlet pipe 401 and the diffuser pipe 402 are both fixedly installed on the top of the fixed seat 1, and the throat seat 403 is rotatably connected to the inside of the positioning seat 301. The air inlet pipe 401 and the diffuser pipe 402 are symmetrically arranged on both sides of the throat seat 403, and one end of the diffuser pipe 402 is connected to the air inlet of the cyclone separator 2. The retainer 304 is inserted into the inside of the throat seat 403, and the switching motor 302 and the throat seat 403 are connected by a gear set.

[0047] The Venturi assembly also includes a linkage mechanism 5, which includes a linkage shaft 501 and a synchronization block 502. The linkage shaft 501 is rotatably connected inside the throat seat 403, and the synchronization block 502 is inserted into the cage 304. The linkage mechanism 5 is provided in each throat channel 431, and the synchronization block 502 is located inside the contraction channel 4311. One end of the linkage shaft 501 is provided with a linkage fan blade 5011, and the linkage fan blade 5011 is located inside the diffusion channel 4313.

[0048] The throat seat 403 has a throat channel 431 inside, and there are three sets of throat channels 431. The throat channels 431 are arranged in a ring array inside the throat seat 403. The number of throat channels 431 is not limited to three sets, and the number can be increased or decreased.

[0049] The throat passage 431 consists of a constriction passage 4311, an acceleration narrow passage 4312, and a diffusion passage 4313. The two ends of the constriction passage 4311 are connected to the intake pipe 401 and the acceleration narrow passage 4312, respectively, and the two ends of the diffusion passage 4313 are connected to the acceleration narrow passage 4312 and the diffusion pipe 402, respectively. The cross-sectional shape of both the constriction passage 4311 and the diffusion passage 4313 is trapezoidal, and the larger cross-section of the constriction passage 4311 and the diffusion passage 4313 faces the intake pipe. The areas of the large cross-sections of 401 and diffuser 402, constriction channel 4311 and diffuser channel 4313 are the same as the cross-sectional area of ​​the channel at the connection between inlet pipe 401 and diffuser 402. The cross-sections of the acceleration narrow channels 4312 of the three sets of throat channels 431 are different. In use, gas is supplied into the interior of the Venturi assembly by a fan to achieve gas dust removal. When the gas first enters the interior of the throat channel 431 through inlet pipe 401, due to the constriction channel 431... 1. The airflow narrows along the airflow direction, causing the airflow speed to increase until it enters the interior of the acceleration narrow channel 4312. The acceleration narrow channel 4312 is the narrowest part (smallest cross-section) of the throat channel 431, so that the gas reaches the fastest flow velocity in the acceleration narrow channel 4312. At the same time, the liquid supply device supplies liquid into the interior of the rotating channel 4041 through the liquid supply channel 4011, realizing the effect of supplying liquid to the atomizing nozzle. The atomizing nozzle can atomize and spray the liquid, so that the atomized liquid can mix and contact with the gas. The high-speed airflow will break the liquid into extremely fine droplets, forming a large number of gas-liquid mixtures. The pollutant particles or molecules in the gas are in full contact with the droplets. Finally, the gas-liquid mixture can enter the interior of the cyclone separator 2 through the diffuser 402. During this process, as the cross-sectional area of ​​the diffuser 4313 gradually expands and the airflow speed gradually decreases, the droplets carrying pollutants can more easily pass through the cyclone separator 2 and be separated from the purified gas, thereby achieving the removal of pollutants. It is convenient and flexible to use.

[0050] The pipe body mechanism 4 also includes a spray seat 404. The spray seat 404 has an atomizing nozzle on its exterior and is rotatably connected to the interior of the air inlet pipe 401. The air inlet pipe 401 has a liquid supply channel 4011 inside, and the spray seat 404 has a rotating channel 4041 inside. Both ends of the liquid supply channel 4011 are connected to a liquid supply device and one end of the rotating channel 4041, respectively, and the other end of the rotating channel 4041 is connected to the atomizing nozzle. During use, in dust removal, the linkage mechanism 5, in coordination with the gas, causes the spray seat 404 to rotate, spraying liquid radially along the air inlet pipe 401, increasing the gas-liquid mixing range and effect. There is no blind spot in gas-liquid contact, greatly improving the dust removal effect. The linkage fan blade 5011 is located inside the diffusion channel 4313, thereby discharging liquid from inside the accelerating narrow channel 4312. The high-speed airflow can drive the linkage shaft 501 to rotate through the linkage fan blade 5011. The shaft body at the other end of the linkage shaft 501 has a regular polygonal cross-section, and the synchronization block 502 has a synchronization groove 5021 inside. The shaft body part of the linkage shaft 501 with a regular polygonal cross-section is inserted into the synchronization groove 5021. When the linkage shaft 501 rotates, it can drive the synchronization block 502 to rotate through the synchronization groove 5021. The outside of the synchronization block 502 is provided with a spline block 5023, and the side of the spray seat 404 is provided with a spline groove 4042. The spline block 5023 is inserted into the spline groove 4042. When the synchronization block 502 rotates, the spline block 5023 can drive the spray seat 404 to rotate through the spline groove 4042, thereby forming a 360° spiral liquid curtain covering the entire pipe cross-section, which has a good gas-liquid mixing effect and also improves the dust removal effect.

[0051] The synchronizing block 502 has a aligning top spring 5022 on its side, with both ends of the aligning top spring 5022 abutting against the side of the synchronizing block 502 and the inside of the throat seat 403, respectively. The electric push rod 303 has a clutch lever 3031 on its outside, and the retainer 304 has a clutch groove 3041 on its outside. The clutch lever 3031 is inserted into the inside of the clutch groove 3041. In use, the throat seat 403 integrates three sets of acceleration narrow channels 4312 with different inner diameters, thus providing multiple gas acceleration parameters that can be adjusted as needed. It is used for adjustable applications to adapt to different dust concentrations, particle size distributions, or gas flow rates. When it is necessary to switch the throat channel 431, the transmission relationship between the linkage mechanism 5 and the spray seat 404 is released by the retraction of the electric push rod 303. When the electric push rod 303 retracts, the clutch lever 3031 can drive the retainer 304 to move through the clutch slot 3041. When the retainer 304 moves, it can drive the synchronizing block 502 to move and compress the alignment top spring 5022. The synchronizing block 502 moves as the synchronizing block 502 moves. After the movement, the spline block 5023 can disengage from the inside of the spline groove 4042, while the synchronizing block 502 is completely located inside the contraction channel 4311. Then, by switching the motor 302 to drive the throat seat 403 to rotate, the corresponding throat channel 431 is switched to the working position and connected to the intake pipe 401 and the diffuser 402. The transmission relationship between the linkage mechanism 5 and the spray seat 404 is restored by extending the electric push rod 303. When the transmission relationship between the linkage mechanism 5 and the spray seat 404 is restored, when the spline block 5023... When spline block 5023 cannot match spline groove 4042, the extension of electric push rod 303 can only drive cage 304 to move and reset independently. In the subsequent rotation of linkage shaft 501 and synchronizing block 502, under the action of alignment top spring 5022, when spline block 5023 cannot match spline groove 4042, spline block 5023 can automatically insert into spline groove 4042 to restore the transmission relationship between linkage mechanism 5 and spray seat 404. There will be no device jamming or transmission failure, and the operation is stable.

[0052] The specific usage and function of this embodiment: In this invention, the gas acceleration parameters of the Venturi assembly are adjusted according to actual usage needs. The throat seat 403 integrates three sets of acceleration narrow channels 4312 with different inner diameters, thus providing multiple gas acceleration parameters that can be adjusted as needed to adapt to different dust concentrations, particle size distributions, or gas flow rates. When it is necessary to switch the throat channel 431, the transmission relationship between the linkage mechanism 5 and the spray seat 404 is released by the retraction of the electric push rod 303. When the electric push rod 303 retracts, the clutch lever 3031 can drive the retainer 304 to move through the clutch slot 3041. When the retainer 304 moves, it can drive the synchronizing block 502 to move and compress the alignment top spring 502. 2. After the synchronization block 502 moves, it allows the spline block 5023 to disengage from the spline groove 4042. Simultaneously, the synchronization block 502 is completely positioned inside the contraction channel 4311. Subsequently, the switching motor 302 drives the throat seat 403 to rotate, switching the corresponding throat channel 431 to its working position and connecting it with the intake pipe 401 and diffuser 402. The transmission relationship between the linkage mechanism 5 and the spray seat 404 is then restored by extending the electric push rod 303. When the transmission relationship between the linkage mechanism 5 and the spray seat 404 is restored, if the spline block 5023 cannot match the spline groove 4042, the extension of the electric push rod 303 can only drive the retainer 304 to move and reset independently. In the subsequent rotation of the linkage shaft 501 and the synchronization block 502... Under the action of the alignment spring 5022, when the spline block 5023 cannot match the spline groove 4042, the spline block 5023 can automatically insert into the spline groove 4042 to restore the transmission relationship between the linkage mechanism 5 and the spray seat 404, and there will be no phenomenon of device jamming or transmission failure. The gas is supplied into the venturi assembly through the fan, thereby realizing the dust removal operation of the gas. When the gas first enters the throat channel 431 through the inlet pipe 401, the narrowing channel 4311 narrows along the airflow direction, which accelerates the airflow speed until it enters the acceleration narrow channel 4312. The acceleration narrow channel 4312 is the narrowest (smallest cross-section) part of the throat channel 431, so the gas in the acceleration narrow channel 431... The system reaches its maximum flow rate twice. Simultaneously, the liquid supply device supplies liquid into the rotating channel 4041 through the liquid supply channel 4011, thus supplying liquid to the atomizing nozzle. The atomizing nozzle atomizes and sprays the liquid, allowing it to mix and contact with the gas. The high-speed airflow breaks the liquid into extremely fine droplets, forming a large amount of gas-liquid mixture. Pollutant particles or molecules in the gas come into full contact with the droplets. Finally, the gas-liquid mixture enters the cyclone separator 2 through the diffuser 402. During this process, as the cross-sectional area of ​​the diffuser channel 4313 gradually expands and the airflow velocity gradually decreases, the droplets carrying pollutants can more easily pass through the cyclone separator 2 and separate from the purified gas, thereby achieving pollutant removal.During dust removal, the linkage mechanism 5, in coordination with the gas, causes the spray seat 404 to rotate, spraying liquid radially out along the air inlet pipe 401. This increases the gas-liquid mixing range and effect, eliminates blind spots in gas-liquid contact, and significantly improves dust removal efficiency. The linkage fan blade 5011 is located inside the diffusion channel 4313, allowing the high-speed airflow expelled from the narrow acceleration channel 4312 to drive the linkage shaft 501 to rotate via the linkage fan blade 5011. When the linkage shaft 501 rotates, it drives the synchronization block 502 to rotate via the synchronization groove 5021. When the synchronization block 502 rotates, the spline block 5023 drives the spray seat 404 to rotate via the spline groove 4042, thus forming a 360° spiral liquid curtain covering the entire pipe cross-section. This results in excellent gas-liquid mixing and improved dust removal efficiency.

[0053] In another embodiment, each component of the Venturi assembly has a chamfered design on the side facing the airflow. This design reduces the flow resistance of the airflow in the channel and further improves the dust removal effect.

Claims

1. A Venturi scrubber based on wet dust removal, including: The fixed base (1) and the cyclone separator (2) are fixedly installed on the top of the fixed base (1); characterized in that it further includes a venturi assembly, which includes a switching mechanism (3) and a tube body mechanism (4). The switching mechanism (3) includes a positioning seat (301), a switching motor (302), an electric push rod (303), and a retainer (304). The positioning seat (301) is fixedly installed on the top of the fixed seat (1), and the switching motor (302) is fixedly installed on the side of the positioning seat (301). The electric push rod (303) is fixedly installed on the outside of the positioning seat (301). The tube body mechanism (4) includes an air inlet pipe (401), a diffuser pipe (402), and a throat seat (403). The air inlet pipe ( Both the inlet pipe (401) and the diffuser (402) are fixedly installed on the top of the fixed base (1), and the throat pipe seat (403) is rotatably connected to the inside of the positioning base (301). The inlet pipe (401) and the diffuser (402) are symmetrically arranged on both sides of the throat pipe seat (403), and one end of the diffuser (402) is connected to the air inlet of the cyclone separator (2). The retainer (304) is inserted into the inside of the throat pipe seat (403), and the switching motor (302) and the throat pipe seat (403) are connected by a gear set. The tube body mechanism (4) also includes a spray seat (404), the outside of which is provided with an atomizing nozzle, and the spray seat (404) is rotatably connected to the inside of the air inlet pipe (401). The inside of the air inlet pipe (401) is provided with a liquid supply channel (4011), and the inside of the spray seat (404) is provided with a rotating channel (4041). The two ends of the liquid supply channel (4011) are respectively connected to a liquid supply device and one end of the rotating channel (4041), and the other end of the rotating channel (4041) is connected to the atomizing nozzle. The Venturi assembly also includes a linkage mechanism (5), which includes a linkage shaft (501) and a synchronization block (502). The linkage shaft (501) is rotatably connected to the inside of the throat seat (403), and the synchronization block (502) is inserted into the inside of the retainer (304). The linkage mechanism (5) is provided in a set inside each throat channel (431), and the synchronization block (502) is located inside the contraction channel (4311). One end of the linkage shaft (501) is provided with a linkage fan blade (5011), and the linkage fan blade (5011) is located inside the diffusion channel (4313). The cross-section of the shaft at the other end of the linkage shaft (501) is a regular polygon, and the inside of the synchronization block (502) is provided with a synchronization groove (5021). The shaft part of the regular polygon cross-section of the linkage shaft (501) is inserted into the inside of the synchronization groove (5021). The side of the synchronization block (502) is provided with a positioning top spring (5022), and the two ends of the positioning top spring (5022) abut against the side of the synchronization block (502) and the inside of the throat seat (403), respectively. The outside of the synchronization block (502) is provided with a spline block (5023), and the side of the spray seat (404) is provided with a spline groove (4042), and the spline block (5023) is inserted into the inside of the spline groove (4042); The electric push rod (303) has a clutch lever (3031) on its outside and a clutch slot (3041) on its outside. The clutch lever (3031) is inserted into the clutch slot (3041).

2. The Venturi scrubber based on wet dust removal according to claim 1, characterized in that, The throat seat (403) is provided with a throat channel (431) inside, and there are three sets of throat channels (431). The throat channels (431) are arranged in a ring array inside the throat seat (403). The number of throat channels (431) is not limited to three sets.

3. The Venturi scrubber based on wet dust removal according to claim 2, characterized in that, The throat passage (431) consists of a constriction passage (4311), an acceleration narrow passage (4312), and a diffusion passage (4313). The two ends of the constriction passage (4311) are connected to the air intake pipe (401) and the acceleration narrow passage (4312), respectively, and the two ends of the diffusion passage (4313) are connected to the acceleration narrow passage (4312) and the diffusion pipe (402), respectively.

4. The Venturi scrubber based on wet dust removal according to claim 3, characterized in that, The cross-sectional shape of the contraction channel (4311) and the diffusion channel (4313) is trapezoidal. The larger cross-section of the contraction channel (4311) and the diffusion channel (4313) faces the intake pipe (401) and the diffusion pipe (402) respectively. The area of ​​the larger cross-section of the contraction channel (4311) and the diffusion channel (4313) is the same as the cross-sectional area of ​​the channel at the connection between the intake pipe (401) and the diffusion pipe (402). The cross-sections of the acceleration narrow channels (4312) of the three sets of throat channels (431) are different.

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