A new type of venturi high-efficiency wet dust collector

Abstract

The application relates to a novel Venturi high-efficiency wet dust collector, and belongs to the technical field of Venturi wet dust collectors, which comprises a tower body, a suction fan is arranged at the top of the tower body, an air inlet elbow is fixedly installed at the right side of the tower body, a mixing cylinder is fixedly installed at the top of the air inlet elbow, a Venturi pipe is fixedly installed in the mixing cylinder, a conveying cylinder is fixedly installed on the front side of the surface of the mixing cylinder through two fixing blocks, a first connecting pipe is fixedly installed at the top of the conveying cylinder, a second connecting pipe is fixedly installed at the bottom of the conveying cylinder, and a spray head is fixedly installed at one end of the Venturi pipe. The blocking ball rod can automatically move up and down according to the air flow pressure change, the effective flow area of the throat pipe is changed in real time, the air flow speed at the throat pipe can be maintained in the ideal interval of high-efficiency dust removal under different air induction amounts, the stability of the dust removal effect is ensured, and the treatment effect of atmospheric pollution is improved.

Description

Technical Field

[0001] This invention relates to the field of Venturi wet dust collector technology, specifically a novel Venturi high-efficiency wet dust collector. Background Technology

[0002] A Venturi wet scrubber is a highly efficient wet scrubber that uses high-speed airflow to atomize liquid, causing dust particles to collide and agglomerate with the liquid droplets, thereby separating them from the airflow. It is known for its extremely high collection efficiency for fine dust, and the new Venturi wet scrubber is also a commonly used device for air pollution control.

[0003] Traditional Venturi wet scrubbers have a fixed throat diameter, making it impossible to dynamically adjust the flow cross-sectional area according to changes in the induced draft volume. This causes the airflow velocity to deviate from the optimal dust collection range, affecting the stability of dust collection efficiency. Furthermore, the traditional scrubbing liquid supply is independently controlled by a water pump, without any feedback from the gas flow rate through the Venturi tube. When the gas flow rate decreases, the liquid spray volume remains unchanged, resulting in water waste. When the gas flow rate increases, the insufficient liquid spray volume leads to a decrease in dust collection efficiency.

[0004] To address the aforementioned issues, we propose a novel Venturi high-efficiency wet dust collector. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a novel Venturi high-efficiency wet dust collector. In this device, the blocking rod can automatically move up and down according to changes in airflow pressure, thereby changing the effective flow cross-sectional area of ​​the throat in real time. This ensures that the airflow velocity at the throat remains within the ideal range for high-efficiency dust removal under different induced draft volumes, thus guaranteeing the stability of the dust removal effect and improving the control effect of air pollution.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel Venturi high-efficiency wet dust collector, comprising a tower body, an exhaust fan installed at the top of the tower body, an air inlet bend fixedly installed on the right side of the tower body, a mixing cylinder fixedly installed at the top of the air inlet bend, and a Venturi tube fixedly installed inside the mixing cylinder; A conveying cylinder is fixedly installed on the front side of the mixing cylinder surface by two fixing blocks. A first connecting pipe is fixedly installed on the top of the conveying cylinder, and a second connecting pipe is fixedly installed on the bottom of the conveying cylinder. A nozzle is fixedly installed at one end of the first connecting pipe inside the venturi tube, and a telescopic shell is fixedly installed at one end of the second connecting pipe inside the venturi tube. A sealing gasket is slidably installed inside the telescopic shell, and a blocking ball rod is fixedly installed on the top of the sealing gasket. A first piston cylinder is fixedly installed on the lower side of the inner wall of the conveying cylinder, around the end of the second connecting pipe, and a first piston block is provided on the inner wall of the first piston cylinder. A pushing sealing plate is slidably installed on the upper side of the inside of the conveying cylinder, and several conversion components are provided on the lower side of the inner wall of the conveying cylinder, around the first piston cylinder.

[0007] Furthermore, the tower body includes a lower section cylinder, a middle section cylinder, and an upper section cylinder. The upper and lower sides of the middle section cylinder are fixedly connected to the bottom of the upper section cylinder and the top of the lower section cylinder, respectively. The top of the upper section cylinder is fixedly connected to the input end of the exhaust fan.

[0008] Furthermore, inspection windows are provided at the front of the middle section cylinder and the upper section cylinder, and fixing plates are fixedly installed on the upper side of the interior of the middle section cylinder, the upper section cylinder and the lower section cylinder, and mesh-shaped demisting plates are fixedly installed on the inner walls of the two fixing plates on the upper side.

[0009] Furthermore, several baffles are fixedly installed on the inner wall of the lower fixed orifice plate, and the opposite sides of the several baffles are integrally formed with downward curved arc plates. The baffles and the arc plates work together to capture and condense water in the flue gas, which then falls into the bottom of the lower section cylinder.

[0010] Furthermore, a filter box is fixedly installed on the front side of the lower section cylinder surface, and a baffle plate is fixedly installed on the inner wall of the filter box near the lower section cylinder, with the top of the baffle plate spaced apart from the upper side of the inner wall of the filter box.

[0011] Furthermore, an overflow port plate is fixedly installed on the inner wall of the filter box in front of the baffle plate, and filter cotton is filled between the overflow port plate and the filter box. Two replacement doors are provided on the top of the filter box above the filter cotton, and a water pump is fixedly installed on the top of the filter box on one side of the replacement doors. The output end of the water pump extends through to the upper side of the inner wall of the conveying cylinder, while the input end of the water pump extends through to the lower side of the inner wall of the filter box. The push sealing plate is located below the input end of the water pump.

[0012] Furthermore, one end of the first connecting pipe extends through the surface of the mixing cylinder and the venturi tube to the upper side of the inner wall of the venturi tube, and one end of the second connecting pipe extends through the surface of the mixing cylinder and the venturi tube to the lower side of the inner wall of the venturi tube.

[0013] Furthermore, the upper end of the blocking rod extends through to the top of the telescopic shell, and the diameter of the blocking rod is slightly smaller than the narrow waist of the venturi tube. By using the blocking rod close to the narrow waist of the venturi tube, the cross-sectional area of ​​the gas entering can be adjusted, thereby changing the gas flow rate. The gas and liquid are sheared into fine water mist by using shearing force. The lower side of the inner wall of the first piston cylinder, the lower side of the inner wall of the telescopic shell, and the interior of the second connecting pipe are all filled with hydraulic oil.

[0014] Furthermore, the conversion assembly includes a second piston cylinder fixedly installed on the lower side of the inner wall of the conveying cylinder, a piston rod slidably installed on the upper side of the inner wall of the second piston cylinder, a spring sleeved on the upper side of the piston rod wall of the second piston cylinder, and a connecting pipe fixedly installed on the upper side of the surface of the second piston cylinder and the surface of the first piston cylinder.

[0015] Furthermore, the upper end of the piston rod extends through to the top of the second piston cylinder, and the upper end of the piston rod is fixedly connected to the bottom of the push sealing plate. The upper and lower ends of the spring are respectively fixedly connected to the bottom of the push sealing plate and the top of the second piston cylinder. Hydraulic oil is filled between the upper side of the second piston cylinder, the upper side of the first piston cylinder, and the connecting pipe. When the push sealing plate is pressed and moves downward, the negative pressure on the upper side of the first piston cylinder contracts during the downward movement of the piston rod. This causes the hydraulic oil in the lower part of the first piston cylinder to move upward, thus causing the blocking ball rod to move downward. When the force on the push sealing plate is small, the blocking ball rod will move upward under the elastic force of the spring. This ensures that when the blocking ball rod moves upward, the gas flow rate decreases, and the liquid spraying decreases accordingly, avoiding liquid waste. Conversely, when the blocking ball rod moves downward, the gas flow rate increases, and the liquid spraying increases accordingly. Otherwise, the amount of liquid adhering to the gas will decrease, affecting the gas treatment effect.

[0016] Compared with the prior art, the present invention provides a novel Venturi high-efficiency wet dust collector, which has the following beneficial effects: 1. The blocking rod in this device can automatically move up and down according to changes in airflow pressure, changing the effective flow cross-sectional area of ​​the throat in real time. This ensures that the airflow velocity at the throat is always maintained within the ideal range for efficient dust removal under different air volumes, thus guaranteeing the stability of the dust removal effect and improving the treatment effect of air pollution.

[0017] 2. When the gas flow rate increases, the blocking rod moves down, increasing the throat opening. At the same time, the hydraulic linkage system increases the spray volume at the nozzle. When the gas flow rate decreases, the spray volume is automatically reduced, achieving "on-demand liquid supply". This effectively avoids excessive waste of circulating water and reduces operating energy and water consumption costs.

[0018] 3. This device operates through a closed hydraulic circuit and mechanical linkage, eliminating the need for external sensors, electrically controlled valves, or complex control systems, thus reducing manufacturing costs. It also boasts advantages such as fast response, strong anti-interference capabilities, and low failure rate, making it particularly suitable for harsh industrial environments with high temperature, high humidity, and high dust levels.

[0019] 4. This device achieves coarse dehydration by setting baffles with arc plates in the lower section of the cylinder, and fine demisting by setting grid-shaped demisting plates in the middle and upper sections, forming a three-stage gas-liquid separation structure. This device can efficiently remove large-diameter dust-laden liquid droplets and fine mist entrained in the airflow, ensuring that the gas finally discharged into the exhaust fan has a high degree of cleanliness, and effectively avoiding scouring, wear and corrosion of the fan impeller. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the structure of the present invention; Figure 2 This is a three-dimensional structural view of the lifting mechanism of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a perspective view of the fixing plate of the present invention; Figure 5 for Figure 4 Enlarged structural diagram of section B; Figure 6 This is a vertical sectional perspective view of the intake bend of the present invention; Figure 7 for Figure 6 Enlarged structural diagram of section C; Figure 8 This is a vertical sectional perspective view of the venturi tube of the present invention; Figure 9 for Figure 8 Enlarged structural diagram of section D in the middle.

[0021] In the diagram: 1. Tower body; 101. Lower section cylinder; 102. Middle section cylinder; 103. Upper section cylinder; 104. Inspection window; 105. Fixed perforated plate; 106. Mesh demister plate; 107. Baffle plate; 108. Arc plate; 109. Filter box; 110. Water baffle plate; 111. Overflow port plate; 112. Filter cotton; 113. Replacement door; 114. Water pump; 2. Exhaust fan; 3. Inlet bend; 4. Mixing cylinder; 401. Fixing block; 5. Conveying cylinder; 6. First connecting pipe; 7. Second connecting pipe; 8. Nozzle; 9. Telescopic shell; 10. Sealing gasket; 11. Barrier rod; 12. First piston cylinder; 13. First piston block; 14. Push sealing plate; 15. Conversion assembly; 1501. Second piston cylinder; 1502. Piston rod; 1503. Spring; 1504. Connecting tube; 16. Venturi tube. Detailed Implementation

[0022] 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 embodiments of the present invention, and not all embodiments. Based on the 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.

[0023] Please see Figures 1 to 9 This embodiment of a novel Venturi high-efficiency wet dust collector includes a tower body 1, with an exhaust fan 2 installed at the top of the tower body 1. The tower body 1 is formed by a lower section cylinder 101, a middle section cylinder 102, and an upper section cylinder 103 connected in sequence. The top of the upper section cylinder 103 is fixedly connected to the input end of the exhaust fan 2. An air inlet bend 3 is fixedly installed on the right side of the tower body 1. A mixing cylinder 4 is fixedly installed at the top of the air inlet bend 3. A Venturi tube 16 is fixedly installed inside the mixing cylinder 4. A conveying cylinder 5 (here, the conveying cylinder 5 is a liquid supply and conveying component independent of the venturi tube 16) is fixedly installed on the front side of the surface of the mixing cylinder 4 by two fixing blocks 401. A first connecting pipe 6 is fixedly installed on the top of the conveying cylinder 5, and a second connecting pipe 7 is fixedly installed on the bottom of the conveying cylinder 5. One end of the first connecting pipe 6 extends through the surface of the mixing cylinder 4 and the venturi tube 16 to the upper side of the inner wall of the venturi tube 16, and a nozzle 8 is fixedly installed at the end located inside the venturi tube 16. One end of the second connecting pipe 7 extends through the surface of the mixing cylinder 4 and the venturi tube 16 to the lower side of the inner wall of the venturi tube 16, and a telescopic shell 9 is fixedly installed at the end located inside the venturi tube 16. A filter box 109 is fixedly installed on the front side of the lower section cylinder 101. A water pump 114 is fixedly installed on the top of the filter box 109. The output end of the water pump 114 extends through to the upper side of the inner wall of the conveying cylinder 5, and the input end of the water pump 114 extends through to the lower side of the inner wall of the filter box 109. Inspection windows 104 are provided in front of the middle section cylinder 102 and the upper section cylinder 103. Fixing plate 105 is fixedly installed on the upper side of the interior of the middle section cylinder 102, the upper section cylinder 103 and the lower section cylinder 101. Mesh-shaped demister plates 106 are fixedly installed on the inner walls of the two upper fixing plate 105. Several baffle plates 107 are fixedly installed on the inner wall of the lower fixing plate 105. The opposite sides of the several baffle plates 107 are integrally formed with downwardly curved arc plates 108. A baffle plate 110 is fixedly installed on the inner wall of the filter box 109 near the lower section cylinder 101. The top of the baffle plate 110 is spaced apart from the upper side of the inner wall of the filter box 109. An overflow port plate 111 is fixedly installed on the inner wall of the filter box 109 in front of the baffle plate 110. Filter cotton 112 is filled between the overflow port plate 111 and the filter box 109. Two replacement doors 113 are provided on the top of the filter box 109 above the filter cotton 112. A sealing gasket 10 is slidably installed inside the telescopic shell 9. A blocking rod 11 is fixedly installed on the top of the sealing gasket 10. The upper end of the blocking rod 11 extends through to the top of the telescopic shell 9, and the diameter of the blocking rod 11 is slightly smaller than the middle waist of the venturi tube 16. A first piston cylinder 12 is fixedly installed on the lower side of the inner wall of the conveying cylinder 5, which is located around the end of the second connecting pipe 7. A first piston block 13 is slidably arranged on the inner wall of the first piston cylinder 12. A push sealing plate 14 is slidably installed on the upper side inside the conveying cylinder 5. The push sealing plate 14 is located below the input end of the water pump 114. Several conversion components 15 are arranged on the lower side of the inner wall of the conveying cylinder 5, which is located around the first piston cylinder 12. The conversion assembly 15 includes a second piston cylinder 1501 fixedly installed on the lower side of the inner wall of the conveying cylinder 5. A piston rod 1502 is slidably installed on the upper side of the inner wall of the second piston cylinder 1501. The upper end of the piston rod 1502 extends through to the top of the second piston cylinder 1501, and the upper end of the piston rod 1502 is fixedly connected to the bottom of the push sealing plate 14. A spring 1503 is sleeved on the upper side of the piston rod 1502 located on the second piston cylinder 1501. The upper and lower ends of the spring 1503 are fixedly connected to the bottom of the push sealing plate 14 and the top of the second piston cylinder 1501, respectively. A connecting pipe 1504 is fixedly installed on the upper side of the surface of the second piston cylinder 1501 and the surface of the first piston cylinder 12. Hydraulic oil is filled in the lower side of the inner wall of the first piston cylinder 12, the lower side of the inner wall of the telescopic shell 9, and the interior of the second connecting pipe 7. Hydraulic oil is also filled in the upper side of the interior of the second piston cylinder 1501, the upper side of the interior of the first piston cylinder 12, and the space between the connecting pipe 1504.

[0024] Working principle After the exhaust fan 2 is started, the dust-laden gas enters the inlet bend 3 through the mixing cylinder 4. The gas passes through the venturi tube 16 inside the mixing cylinder 4. The flow velocity of the dust-laden airflow gradually increases in the contraction section of the venturi tube 16, and the pressure energy of the airflow is gradually converted into kinetic energy. When the airflow enters the waist (throat) position of the venturi tube 16, the flow velocity reaches the maximum value and the static pressure drops to the minimum value. The water pump 114 draws out the circulating water at the bottom of the filter box 109 and sends it through the output end to the upper side of the inner wall of the conveying cylinder 5. Inside the conveying cylinder 5, it is transported through the first connecting pipe 6 to the upper side of the inner wall of the venturi tube 16 and sprayed out by the nozzle 8. The sprayed washing liquid meets the dust-laden airflow above the throat of the Venturi tube 16. The high flow velocity of the airflow at the throat generates a strong airflow shearing force, which shears and pulverizes the washing liquid into fine droplets. The gas and liquid phases are fully mixed in the throat. The dust particles in the dust-laden gas undergo inertial collisions and agglomeration with the fine droplets to form dust-laden droplets. The blocking rod 11 is located at the narrow waist of the venturi tube 16. Its diameter is slightly smaller than that of the throat. The blocking rod 11 can slide up and down inside the telescopic shell 9. When the blocking rod 11 moves upward, its ball extends further into the throat, reducing the cross-sectional area through which the gas passes. When the blocking rod 11 moves downward, the ball exits the throat, increasing the cross-sectional area through which the gas passes. By changing the actual flow cross-sectional area of ​​the throat, the flow rate of the airflow can be adjusted. The vertical movement of the blocking rod 11 is determined by the magnitude of the liquid flow entering the conveying cylinder 5. When the water pump 114 delivers circulating water to the upper side of the inner wall of the conveying cylinder 5, the circulating water generates downward water pressure on the pushing sealing plate 14. When the gas flow rate increases (i.e., the position of the blocking rod 11 changes), the flow rate at the throat of the venturi tube 16 changes, and the liquid pressure on the pushing sealing plate 14 changes with the change of the water pump 114. When the pushing sealing plate 14 is pressed and moves downward, during the downward movement of the piston rod 1502, the first piston cylinder 12... The negative pressure on the upper side of the piston cylinder 12 causes the hydraulic oil in the lower part of the first piston cylinder 12 to move upward, which in turn causes the blocking rod 11 to move downward. When the force pushing the sealing plate 14 is small, the blocking rod 11 will move upward under the elastic force of the spring 1503. This ensures that when the blocking rod 11 moves upward, the gas flow rate decreases, and the liquid spraying will decrease accordingly, avoiding liquid waste. Conversely, when the blocking rod 11 moves downward, the gas flow rate increases, and the liquid spraying will increase accordingly. Otherwise, the amount of liquid adhering to the gas will decrease, which will affect the gas treatment effect. After the dust-laden droplets leave the Venturi tube 16 with the airflow, they enter the lower section 101 of the tower body 1 through the inlet bend 3. The airflow passes in sequence through the baffle 107 in the lower section 101, the middle section 102, and the grid-shaped demister 106 in the upper section 103. The baffle 107, together with the arc plate 108, can capture and condense the moisture in the flue gas, causing the dust-laden droplets to fall to the bottom of the lower section 101. The grid-shaped demister 106 further removes the fine droplets entrained in the airflow. The purified gas is discharged by the exhaust fan 2. The dust-laden water collected at the bottom of the lower section cylinder 101 flows into the filter box 109 through the baffle plate 110, overflows through the overflow port plate 111 and is filtered by the filter cotton 112. The filtered clean water is collected at the bottom of the filter box 109 and is pumped out by the water pump 114 for recycling. The filter cotton 112 can be replaced periodically through the replacement door 113.

[0025] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A novel venturi high-efficiency wet dust collector, comprising a tower body (1), characterized in that: A blower (2) is provided on the top of the tower body (1), an air inlet bend (3) is fixedly installed on the right side of the tower body (1), a mixing cylinder (4) is fixedly installed on the top of the air inlet bend (3), and a venturi tube (16) is fixedly installed inside the mixing cylinder (4). The front side of the mixing cylinder (4) is fixedly installed with a conveying cylinder (5) by two fixing blocks (401). The top of the conveying cylinder (5) is fixedly installed with a first connecting pipe (6) and the bottom of the conveying cylinder (5) is fixedly installed with a second connecting pipe (7). The first connecting pipe (6) is fixedly installed with a nozzle (8) at one end inside the venturi tube (16), while the second connecting pipe (7) is fixedly installed with a telescopic shell (9) at one end inside the venturi tube (16). A sealing gasket (10) is slidably installed inside the telescopic shell (9), and a blocking ball rod (11) is fixedly installed on the top of the sealing gasket (10). A first piston cylinder (12) is fixedly installed on the lower side of the inner wall of the conveying cylinder (5) at the periphery of the end of the second connecting pipe (7), and a first piston block (13) is provided on the inner wall of the first piston cylinder (12). A pushing sealing plate (14) is slidably installed on the upper side inside the conveying cylinder (5), and several conversion components (15) are provided on the lower side of the inner wall of the conveying cylinder (5) at the periphery of the first piston cylinder (12).

2. The novel Venturi high-efficiency wet dust collector according to claim 1, characterized in that: The tower body (1) includes a lower section cylinder (101), a middle section cylinder (102), and an upper section cylinder (103). The upper and lower sides of the middle section cylinder (102) are fixedly connected to the bottom of the upper section cylinder (103) and the top of the lower section cylinder (101), respectively. The top of the upper section cylinder (103) is fixedly connected to the input end of the exhaust fan (2).

3. A novel Venturi high-efficiency wet dust collector according to claim 2, characterized in that: Inspection windows (104) are provided in front of the middle section cylinder (102) and the upper section cylinder (103). Fixing plates (105) are fixedly installed on the upper side of the interior of the middle section cylinder (102), the upper section cylinder (103) and the lower section cylinder (101). Mesh demisting plates (106) are fixedly installed on the inner walls of the two fixing plates (105) on the upper side.

4. A novel Venturi high-efficiency wet dust collector according to claim 3, characterized in that: The inner wall of the lower fixed hole plate (105) is fixedly installed with several baffles (107), and the opposite sides of the several baffles (107) are integrally formed with downward curved arc plates (108).

5. A novel Venturi high-efficiency wet dust collector according to claim 2, characterized in that: A filter box (109) is fixedly installed on the front side of the surface of the lower section cylinder (101). A baffle plate (110) is fixedly installed on the inner wall of the filter box (109) near the lower section cylinder (101). The top of the baffle plate (110) is spaced apart from the upper side of the inner wall of the filter box (109).

6. A novel Venturi high-efficiency wet dust collector according to claim 5, characterized in that: An overflow port plate (111) is fixedly installed on the inner wall of the filter box (109) in front of the baffle plate (110), and filter cotton (112) is filled between the overflow port plate (111) and the filter box (109). Two replacement doors (113) are provided on the top of the filter box (109) above the filter cotton (112), and a water pump (114) is fixedly installed on the top of the filter box (109) on one side of the replacement door (113). The output end of the water pump (114) extends through to the upper side of the inner wall of the conveying cylinder (5), while the input end of the water pump (114) extends through to the lower side of the inner wall of the filter box (109). The push sealing plate (14) is located below the input end of the water pump (114).

7. A novel Venturi high-efficiency wet dust collector according to claim 6, characterized in that: One end of the first connecting pipe (6) extends through the surface of the mixing cylinder (4) and the venturi tube (16) to the upper side of the inner wall of the venturi tube (16), and one end of the second connecting pipe (7) extends through the surface of the mixing cylinder (4) and the venturi tube (16) to the lower side of the inner wall of the venturi tube (16).

8. A novel Venturi high-efficiency wet dust collector according to claim 6, characterized in that: The upper end of the blocking rod (11) extends through to the top of the telescopic shell (9), and the lower side of the inner wall of the first piston cylinder (12), the lower side of the inner wall of the telescopic shell (9), and the interior of the second connecting pipe (7) are all filled with hydraulic oil.

9. A novel Venturi high-efficiency wet dust collector according to claim 6, characterized in that: The conversion assembly (15) includes a second piston cylinder (1501) fixedly installed on the lower side of the inner wall of the conveying cylinder (5), and a piston rod (1502) is slidably installed on the upper side of the inner wall of the second piston cylinder (1501). A spring (1503) is sleeved on the upper side of the piston rod (1502) located on the upper side of the second piston cylinder (1501). A connecting pipe (1504) is fixedly installed on the upper side of the surface of the second piston cylinder (1501) and the surface of the first piston cylinder (12). The upper end of the piston rod (1502) extends through to the top of the second piston cylinder (1501), and the upper end of the piston rod (1502) is fixedly connected to the bottom of the push sealing plate (14).

10. A novel Venturi high-efficiency wet dust collector according to claim 9, characterized in that: The upper and lower ends of the spring (1503) are fixedly connected to the bottom of the push sealing plate (14) and the top of the second piston cylinder (1501), respectively. Hydraulic oil is filled between the upper side of the second piston cylinder (1501) and the upper side of the first piston cylinder (12) and the connecting pipe (1504).

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