An industrial waste gas treatment device

Abstract

The present application relates to waste gas treatment technical field, disclose a kind of industrial waste gas treatment device, including cone cylinder, the upper portion of the side wall of cone cylinder is provided with air inlet pipe, the top end of cone cylinder is sealingly connected with end cover, the middle portion of end cover is penetrated and is provided with exhaust pipe, the air outlet end of the exhaust pipe is equipped with fan, the outside of the cone cylinder is provided with water tank, still include blowdown mechanism and gas humidification mechanism;When air inlet pipe is passed into high-speed spiral airflow to cone cylinder interior, airflow forms negative pressure at the output end of gas humidification mechanism, and the water body in water tank is sucked into cone cylinder by the negative pressure.This application uses airflow negative pressure to suck water tank water by gas humidification mechanism, so that superfine dust and water mist are fully contacted to realize atomization or agglomeration, combined with cyclone separation principle, the removal rate of superfine particles that traditional cyclone dust collector is difficult to capture is improved, meet ultra-low emission requirements, at the same time, intermittent high-pressure flushing of water inlet pipe is realized by the closed-loop control of water replenishment pipe and liquid level sensor, and the pollutants in the inner wall of cone cylinder are removed in time.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically an industrial waste gas treatment device. Background Technology

[0002] In industrial production processes, industries such as metallurgy, chemicals, building materials, and power generation generate large amounts of industrial waste gas, which typically contains high concentrations of particulate matter. With increasingly stringent environmental regulations, industrial waste gas emissions must strictly meet particulate matter concentration limits. Ultrafine particles, due to their ease of atmospheric suspension, wide diffusion range, and potential hazards to the ecological environment and human health, have become one of the core control targets for waste gas purification. Currently, the mainstream particulate matter pretreatment equipment in the industrial sector is the cyclone dust collector. Based on the principle of centrifugal separation, it uses high-speed rotation of the dust-laden airflow within the cylinder, utilizing the density difference between dust particles and gas to generate centrifugal force, throwing the particles against the cylinder wall and causing them to settle into the ash hopper, thus achieving gas-solid separation. This equipment is widely used in the primary dust removal stages of various industrial waste gases due to its simple and compact structure, large air volume handling capacity, low energy consumption, excellent temperature and corrosion resistance, and low maintenance costs.

[0003] However, traditional cyclone dust collectors have significant technical limitations in practical applications: constrained by the centrifugal separation mechanism itself, their separation efficiency for particulate matter is positively correlated with particle size, effectively capturing only large dust particles. For ultrafine particles, due to their small mass and weak inertia, they are difficult to be thrown against the cylinder wall by sufficient centrifugal force and easily escape from the exhaust pipe with the rising airflow, resulting in a significant decrease in dust removal efficiency. If traditional cyclone dust collectors are used directly as a single dust removal device, they often cannot meet the current ultra-low emission requirements for particulate matter in industrial waste gas. If only downstream bag filters or electrostatic precipitators are added as end-of-pipe purification equipment, not only will the high concentration of ultrafine particles at the front end cause problems such as filter clogging and electrode contamination in the end-of-pipe equipment, increasing equipment wear and operating costs, but it will also affect the operational stability and treatment capacity of the overall waste gas treatment system. Therefore, to address the technical pain point of low ultrafine particle capture efficiency of traditional cyclone dust collectors, there is an urgent need to develop an industrial waste gas treatment device that can enhance the separation effect of fine particles and balance treatment efficiency and operating economy. Summary of the Invention

[0004] The purpose of this invention is to provide an industrial waste gas treatment device to solve the technical problem of low collection efficiency of ultrafine particulate matter in the prior art.

[0005] An industrial waste gas treatment device includes a cone, an air inlet pipe provided on the upper part of the side wall of the cone, an end cap sealed to the top of the cone, an exhaust pipe passing through the middle of the end cap, a fan installed at the outlet end of the exhaust pipe, a water tank provided on the outside of the cone, and also includes a sewage discharge mechanism and a gas humidification mechanism. The sewage discharge mechanism, located at the bottom of the cone, is used to transfer pollutants deposited at the bottom of the cone to the bottom of the water tank and maintain the sealed state of the bottom of the cone. A gas humidification mechanism is located above the cone and is used to humidify the gas flowing into the cone through the inlet pipe. When a high-speed spiral airflow is introduced into the cone through the air intake pipe, the airflow creates a negative pressure at the output end of the gas humidification mechanism, which draws the water in the water tank into the cone.

[0006] In a preferred embodiment of the present invention, the gas humidification mechanism includes a water inlet pipe disposed on the outer wall of a cone and communicating with the interior of the cone. Multiple water inlet pipes are symmetrically distributed around the center of the cone. The end of each water inlet pipe away from the cone is connected to a water distribution ring. An L-shaped connecting pipe communicating with the interior of the water tank is connected to the side of the water distribution ring closest to the water tank. The end of the L-shaped connecting pipe away from the water distribution ring extends towards the bottom of the water tank. The water discharged from the water inlet pipe does not contact the exhaust pipe.

[0007] In a preferred embodiment of the present invention, a water supply pipe is provided on the side of the water tank away from the L-shaped connecting pipe. An electromagnetic throttle valve is connected in series in the middle of the water supply pipe. Liquid level sensors connected to the side wall of the water tank are mounted on both the upper and lower sides of the water supply pipe. Both liquid level sensors are electrically connected to the electromagnetic throttle valve. The water level detection height of the lower liquid level sensor is higher than the water inlet height of the L-shaped connecting pipe, and the water level detection height of the upper liquid level sensor is higher than the water outlet height of the water inlet pipe. The maximum flow rate of the water supply pipe is greater than the sum of the maximum flow rates of all the water inlet pipes.

[0008] As a preferred embodiment of the present invention, the sewage discharge mechanism includes a cylindrical shell disposed at the bottom end of a cone and communicating with the cone. A rotating cylinder is rotatably connected inside the cylindrical shell. The side of the cylindrical shell near the water tank is connected to the inside of the water tank through a guide pipe. A storage trough is provided on the side wall of the rotating cylinder. An extrusion piston is slidably connected inside the storage trough. An ejection assembly is assembled on the side wall of the cylindrical shell. When the storage trough rotates to be aligned with the guide pipe, the ejection assembly pushes the extrusion piston to push the pollutants in the storage trough into the water tank through the guide pipe.

[0009] As a preferred embodiment of the present invention, the ejection assembly includes a fixed plate disposed inside the storage tank, a push rod slidably connected to the middle of the fixed plate and fixedly connected to the extrusion piston, a fixed rod fixedly connected to the side wall of the cylindrical shell, and a fan-shaped ejection block that cooperates with the push rod at the end of the fixed rod. When the storage tank is aligned with the guide tube, the fan-shaped ejection block can abut against and push the push rod, causing the extrusion piston to move away from the center of the rotating cylinder. When the storage tank is aligned with the cone cylinder, the extrusion piston moves towards the center of the cylindrical shell under the action of gravity.

[0010] As a preferred embodiment of the present invention, the bottom of the water tank is equipped with a guide plate, and a discharge port is provided at the bottom of the side wall of the water tank away from the sewage discharge mechanism.

[0011] As a preferred embodiment of the present invention, flow stabilizing plates are respectively provided in the middle of the left and right side walls of the water tank. The flow stabilizing plates are fixed to the side walls of the water tank in a cantilever manner, and a water flow passage is formed between their free ends and the opposite side walls of the water tank.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects: 1. High-efficiency integrated dust removal: It cleverly combines the mechanical separation of cyclone dust collectors with the coagulation effect of wet dust collectors. By introducing water mist through the airflow's own power, it not only effectively captures large dust particles, but also significantly improves the removal efficiency of small particulate pollutants that are difficult to handle by traditional cyclone dust collectors.

[0013] 2. Self-sustaining and intelligent: It automatically pumps water for humidification using the Bernoulli effect of airflow, eliminating the need for an additional water pump; through the linkage of dual liquid level sensors and electromagnetic throttle valve, it realizes automatic compensation of water tank level and intelligent switching between "humidification-rinsing" working modes, resulting in low operation and maintenance costs.

[0014] 3. Online self-cleaning and sewage discharge: The unique water replenishment high-pressure flushing mechanism can automatically clean the inner wall of the cone periodically to prevent the accumulation of pollutants from affecting the airflow pattern and dust removal efficiency; the innovative closed rotary sewage discharge mechanism can continuously discharge sewage without stopping the system, ensuring long-term stable operation of the device.

[0015] 4. Compact structure and strong practicality: The humidification, water replenishment and sewage discharge modules are integrated into the main structure of the traditional cyclone dust collector, which reduces the improvement cost and makes it easy to upgrade existing equipment. It is suitable for the treatment of waste gas and dust in various industrial scenarios such as building materials, metallurgy, and wood processing. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an industrial waste gas treatment device.

[0018] Figure 2 This is a schematic diagram of the internal structure of an industrial waste gas treatment device.

[0019] Figure 3 for Figure 2 The front view.

[0020] Figure 4 This is a schematic diagram of the sewage discharge mechanism in an industrial waste gas treatment device.

[0021] Figure 5 This is a schematic diagram of the ejector component in an industrial waste gas treatment device.

[0022] Figure 6 for Figure 5 Top view.

[0023] Figure 7 This is a schematic diagram of the structure of a cylindrical shell and a rotating drum in an industrial waste gas treatment device.

[0024] Figure 8 This is a schematic diagram of the structure of a rotary drum in an industrial waste gas treatment device.

[0025] Figure 9 This is a schematic diagram of the internal structure of a cone-shaped structure in an industrial waste gas treatment device.

[0026] Figure 10 This is a schematic diagram of the structure of an industrial waste gas treatment device, showing the cooperation between the water inlet pipe and the water distribution ring.

[0027] In the diagram: 1. Conical cylinder; 2. Sewage discharge mechanism; 3. Gas humidification mechanism; 4. Air inlet pipe; 5. End cap; 6. Exhaust pipe; 7. Fan; 8. Flow stabilizer plate; 9. Flow guide plate; 10. Impurity discharge port; 11. Cylindrical shell; 12. Rotary drum; 13. Material storage tank; 14. Ejection assembly; 15. Material guide pipe; 16. Water tank; 17. Water distribution ring; 18. Water inlet pipe; 19. L-shaped connecting pipe; 20. Water supply pipe; 21. Liquid level sensor; 22. Throttle valve; 23. Drive motor; 24. Extrusion piston; 25. Fan-shaped ejector block; 26. Fixing plate; 27. Ejector rod; 28. Fixing rod. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described 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 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.

[0029] In one embodiment, see Figure 1 , Figure 2 and Figure 3An industrial waste gas treatment device includes a cone 1. An inlet pipe 4 is installed through the upper part of the side wall of the cone 1. An end cap 5 is bolted to the top of the cone 1. An exhaust pipe 6 is coaxially installed through the middle of the end cap 5. The lower end of the exhaust pipe 6 extends vertically into the interior of the cone 1, and a fan 7 is installed at its outlet end. After the fan 7 is started, it draws gas from inside the cone 1 through the exhaust pipe 6, creating a negative pressure environment inside the cone 1, which drives external industrial waste gas to flow in through the inlet pipe 4. To enhance the airflow swirling effect, the inlet pipe 4 is inclined downwards, with its axis close to the tangent direction of the side wall of the cone 1 (specifically extending from the upper left rear side to the lower right front side), ensuring that the airflow swirls smoothly along the inner wall of the cone 1 and reducing airflow turbulence.

[0030] A water tank 16 is located on the right side of the cone 1, and the cone also includes a sewage discharge mechanism 2 and a gas humidification mechanism 3. The sewage discharge mechanism 2 is located at the lower end of the cone 1 and communicates with the lower left wall of the water tank 16. It is used to transfer pollutants deposited at the bottom of the cone 1 to the bottom of the water tank 16, maintaining a sealed state at the bottom of the cone 1 throughout the process to ensure stable negative pressure inside the cone 1. The gas humidification mechanism 3 is located above the cone 1 and is used to humidify the airflow flowing in from the air inlet pipe 4, achieving the capture of ultrafine particles through gas-liquid contact. When a high-speed spiral airflow is introduced into the cone 1 through the air inlet pipe 4, a negative pressure is formed at the output end of the gas humidification mechanism 3. This negative pressure is used to draw water from the water tank 16 into the cone 1, completing humidification and fine particle capture.

[0031] In one instance of this embodiment, please refer to Figure 2 , Figure 9 and Figure 10 The gas humidification mechanism 3 includes a water inlet pipe 18 disposed on the outer wall of the cone 1 and communicating with the interior of the cone 1. The water inlet pipe 18 and the air inlet pipe 4 are inclined in the same direction (both are distributed clockwise or counterclockwise), but the water inlet pipe 18 is set horizontally, and the water inlet pipe 18 and the exhaust pipe 6 are staggered on the same plane to avoid the water flow directly hitting the exhaust pipe 6 after being sprayed out. There are 8-16 water inlet pipes 18 symmetrically distributed along the circumference of the cone 1. A hollow annular water distribution ring 17 is sleeved on the outer side of the cone 1. The inner side of the water distribution ring 17 is connected to the end of each water inlet pipe 18 away from the cone 1. An L-shaped connecting pipe 19 is connected to the right side of the water distribution ring 17. The right end of the L-shaped connecting pipe 19 extends into the interior of the water tank 16, and the right end of the L-shaped connecting pipe 19 is the water inlet end, which is the short side extending downward and is immersed in the water in the water tank 16.

[0032] A water supply pipe 20 is installed on the upper right side wall of the water tank 16. An electromagnetic throttle valve 22 is connected in series in the middle of the water supply pipe 20. Liquid level sensors 21 are installed on the upper and lower sides of the water supply pipe 20, and both liquid level sensors 21 are electrically connected to the electromagnetic throttle valve 22 to form a closed-loop control. The detection height of the lower liquid level sensor 21 is higher than the height of the water inlet end of the L-shaped connecting pipe 19, ensuring that the L-shaped connecting pipe 19 is always submerged. The detection height of the upper liquid level sensor 21 is higher than the height of the axis of the water inlet pipe 18, which is used to limit the maximum water level of the water tank 16. The maximum flow rate of the water supply pipe 20 is greater than the sum of the maximum flow rates of all the water inlet pipes 18, ensuring that the water supply rate meets the water jet requirements.

[0033] When the water level in tank 16 is lower than the level sensor 21 below, the electromagnetic throttle valve 22 opens to replenish water. When the water level exceeds the outlet of the L-shaped connecting pipe 19, the water automatically flows to the water distribution ring 17 under the action of static pressure difference, at which point there is no need for airflow negative pressure suction. If the replenishment flow rate (designed to be greater than the total drainage capacity of the inlet pipe 18) continues to exceed the consumption, the water level will continue to rise, resulting in a significant increase in the water pressure and flow rate at the outlet of the inlet pipe 18. The high-pressure water flow can be sprayed onto the inner wall of the opposing cone 1, powerfully washing away the dirt attached to the wall (especially in the dust wet accumulation area). When the water level reaches the set height of the level sensor 21 above, the electromagnetic throttle valve 22 closes, and water replenishment stops. Subsequently, as the water is consumed, the water level gradually decreases, and the device automatically returns to the "wet dust removal" mode that relies on airflow negative pressure. This cycle achieves an organic combination of dust removal and intermittent automatic flushing.

[0034] In one instance of this embodiment, please refer to Figures 2-8 The sewage discharge mechanism 2 includes a cylindrical shell 11 located at the lower end of the cone 1. The cylindrical shell 11 is axially arranged front-to-back, with its upper end connected to the lower end of the cone 1. A guide pipe 15 is connected to the right side wall, and the other end of the guide pipe 15 is connected to the lower part of the left side wall of the water tank 16. A rotating cylinder 12 is rotatably connected inside the cylindrical shell 11. The rotating cylinder 12 is coaxially arranged with the cylindrical shell 11. A drive motor 23 is installed at the rear end of the cylindrical shell 11. The output shaft of the drive motor 23 is fixedly connected to the rear end of the rotating cylinder 12, driving the rotating cylinder 12 to rotate at a uniform speed. A sealing ring is provided between the outer wall of the rotating cylinder 12 and the inner wall of the cylindrical shell 11 to ensure the airtightness of the bottom of the cone 1. Four material storage slots 13 are evenly opened along the circumference of the outer wall of the rotating cylinder 12. An extrusion piston 24 is slidably connected inside each material storage slot 13. An ejection assembly 14 is installed on the front side wall of the cylindrical shell 11. When the storage tank 13 rotates to align with the guide pipe 15, the ejector assembly 14 pushes the extrusion piston 24 to move away from the center of the rotating drum 12, pushing the contaminants in the storage tank 13 into the guide pipe 15, and then into the water tank 16.

[0035] The ejection assembly 14 includes a fixing rod 28 fixed to the front side wall of the cylindrical housing 11. A fan-shaped ejection block 25 is provided at the rear end of the fixing rod 28. The upper and lower ends of the fan-shaped ejection block 25 are arc surfaces (the radius of the upper arc surface is smaller than the radius of the lower arc surface), and the left and right sides are smoothly transitioned slopes. A fixing plate 26 is fixedly connected to the storage tank 13 near the center of the rotating drum 12. A push rod 27 is slidably connected to the middle of the fixing plate 26. The push rod 27 is distributed radially along the rotating drum 12. When the push rod 27 rotates to the right side with the rotating drum 12, its end slides along the upper arc surface of the fan-shaped ejector block 25 to the right inclined surface, thereby pushing the push rod 27 to drive the extrusion piston 24 to move in the direction of the guide tube 15; when the storage tank 13 is completely aligned with the guide tube 15, the push rod 27 moves to the maximum stroke, and the extrusion piston 24 pushes all the contaminants into the guide tube 15; when the push rod 27 slides to the lower arc surface of the fan-shaped ejector block 25, the position of the extrusion piston 24 remains stable; when the storage tank 13 rotates to the top, the extrusion piston 24 resets under the action of gravity, and the storage tank 13 forms a cavity to receive the contaminants falling from the bottom of the cone 1.

[0036] In one instance of this embodiment, please refer to Figure 2 A guide plate 9 is fixedly connected to the bottom of the water tank 16. The right end of the guide plate 9 is inclined towards the ground to facilitate the sliding of pollutants to the right along the guide plate 9. A discharge port 10 is opened at the lower part of the right side wall of the water tank 16. The deposited pollutants are discharged through the discharge port 10, and the wastewater during the cleaning of the water tank 16 is also discharged through the discharge port 10. A flow stabilizing plate 8 is horizontally installed in the middle of the left and right side walls of the water tank 16. One end of the flow stabilizing plate 8 is fixed to the side wall of the water tank 16, and the other end leaves a flow gap with the opposite side wall. This ensures the flow of water between the upper and lower parts of the water tank 16 and suppresses the disturbance of the upper water flow to the lower water during water replenishment, which is conducive to the static deposition of pollutants.

[0037] This embodiment includes the following steps during implementation: 1. Initialization phase: Place the device vertically, connect the water supply pipe 20 to the external water source, start the electromagnetic throttle valve 22 to fill the water tank 16 with water until the water level reaches the height of the liquid level sensor 21 above, and then close the electromagnetic throttle valve 22; connect the air inlet pipe 4 to the industrial exhaust pipe and check the airtightness of each sealing part.

[0038] 2. Large Particle Dust Filtration Stage: Fan 7 is started, creating negative pressure inside cone 1. Industrial waste gas flows in tangentially along the inner wall of cone 1 through inlet pipe 4, forming a high-speed spiral airflow. During the airflow swirling process, large particles of dust settle towards the inner wall of cone 1 under the action of centrifugal force and gravity, sliding down the wall to the bottom storage tank 13. As the airflow swirls downwards, the flow velocity gradually decreases, and the purified airflow converges upwards, exiting cone 1 through exhaust pipe 6.

[0039] 3. Small Particle Dust Filtration Stage: When the high-speed spiral airflow passes through the end of the water inlet pipe 18, a negative pressure is formed at the outlet of the water inlet pipe 18. Under atmospheric pressure, the water in the water tank 16 enters each water inlet pipe 18 through the L-shaped connecting pipe 19 and the water distribution ring 17, and is finally sprayed into the cone 1. After the water flow comes into contact with the high-speed airflow, it is partially atomized. The ultrafine dust particles combine with the water mist to form droplets, or the particles agglomerate due to increased humidity, forming large-diameter flocs. Under the action of centrifugal force, the droplets and flocs are thrown towards the inner wall of the cone 1 and slide down the wall to the bottom storage tank 13, completing the capture of ultrafine particles. The diameter of the water inlet pipe 18 is much smaller than the diameter of the air inlet pipe 4. Therefore, after a negative pressure is formed inside the cone 1, the pressure difference is mainly reduced by supplementing gas through the air inlet pipe 18, and a small part is reduced by the water flowing in through the air inlet pipe 4.

[0040] 4. Cone 1 Flushing Stage: As water continues to spray out, the water level in water tank 16 gradually drops to the height of the lower level sensor 21. The electromagnetic throttle valve 22 automatically opens, and the water supply pipe 20 quickly replenishes water to water tank 16. When the water level is higher than the outlet end of the L-shaped connecting pipe 19, water is sprayed into cone 1 through the inlet pipe 18 under the action of the level difference. When the initial level difference is small, the water flows slowly down the inner wall of cone 1, achieving preliminary flushing. As the water level continues to rise, the water jet pressure increases, and the water flow directly impacts the opposing inner wall of cone 1, performing high-pressure flushing on the airflow vortex area and the contaminants attached to the wall. The flushed wastewater carries the contaminants down to the storage tank 13. When the water level rises to the upper level sensor 21, the water supply pipe 20 stops replenishing water, the water flow in the inlet pipe 18 gradually weakens, and the device returns to the small particle filtration stage. Furthermore, since the gas containing moisture is continuously discharged outside the cone 1, the water level in the water tank 16 will drop after a period of operation. Therefore, the entire water tank 16 will need to be replenished intermittently, thus achieving the effect of intermittently rinsing the inner wall of the cone 1.

[0041] 5. Sewage Discharge Stage: Start the drive motor 23, and the drum 12 rotates clockwise at a speed of 5-10 r / min. When the storage tank 13 rotates to the top, the extrusion piston 24 resets, receiving the pollutants falling from the cone 1; when the storage tank 13 rotates to the right side and aligns with the guide pipe 15, the ejector assembly 14 pushes the extrusion piston 24 to push the pollutants into the guide pipe 15. The pollutants are discharged into the water tank 16 through the guide pipe 15, slide along the guide plate 9 to the bottom of the water tank 16, and are finally periodically discharged through the discharge port 10. Preferably, the drive motor 23 is connected to the control system. When the high-pressure flushing mode is detected (i.e., the electromagnetic throttle valve 22 is open), the rotation speed of the drum 12 can be increased accordingly to accelerate the discharge speed of the flushing wastewater, that is, to improve the sewage discharge efficiency of the sewage discharge mechanism 2, so that the water used to flush the inner wall of the cone 1 can be discharged quickly.

[0042] This invention provides an industrial waste gas treatment device. The gas humidification mechanism 3 uses negative pressure airflow to draw water from the water tank 16, allowing ultrafine dust to come into full contact with water mist to achieve atomization or agglomeration. Combined with the cyclone separation principle, the removal rate of ultrafine particles that are difficult to capture by traditional cyclone dust collectors is improved, meeting the requirements for ultra-low emissions. At the same time, the closed-loop control of the water supply pipe 20 and the liquid level sensor 21 enables intermittent high-pressure flushing of the water inlet pipe 18, timely removing pollutants from the inner wall of the cone 1, avoiding blockage of the airflow channel, and ensuring long-term stable operation.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. An industrial waste gas treatment device, comprising a cone, an inlet pipe disposed on the upper part of the side wall of the cone, an end cap sealed to the top of the cone, an exhaust pipe extending through the middle of the end cap, and a fan assembled at the outlet end of the exhaust pipe, characterized in that, A water tank is provided on the outside of the cone, and it also includes a sewage discharge mechanism and a gas humidification mechanism; A sewage discharge mechanism, located at the bottom of the cone, is used to transfer contaminants deposited at the bottom of the cone to the bottom of the water tank while maintaining the sealed state of the bottom of the cone. The sewage discharge mechanism includes a cylindrical shell located at the bottom end of the cone and communicating with the cone. A rotating cylinder is rotatably connected inside the cylindrical shell. The side of the cylindrical shell near the water tank is connected to the inside of the water tank via a feed pipe. A storage trough is formed on the side wall of the rotating cylinder, and an extrusion piston is slidably connected inside the storage trough. An ejection assembly is fitted on the side wall of the cylindrical shell. When the storage trough rotates to align with the feed pipe, the ejection assembly pushes the extruder... The piston pushes contaminants in the storage tank into the water tank through the guide pipe. The ejection assembly includes a fixed plate disposed inside the storage tank. A push rod that is fixedly connected to the extrusion piston is slidably connected to the middle of the fixed plate. A fixed rod is fixedly connected to the side wall of the cylindrical shell. A fan-shaped ejection block that cooperates with the push rod is assembled at the end of the fixed rod. When the storage tank is aligned with the guide pipe, the fan-shaped ejection block can abut against and push the push rod, causing the extrusion piston to move away from the center of the rotating cylinder. When the storage tank is aligned with the cone cylinder, the extrusion piston moves towards the center of the cylindrical shell under the action of gravity. A gas humidification mechanism is installed above the cone and is used to humidify the gas flowing into the cone through the air inlet pipe. The gas humidification mechanism includes a water inlet pipe arranged on the outer wall of the cone and communicating with the inside of the cone. Multiple water inlet pipes are symmetrically distributed around the center of the cone. The end of the water inlet pipe away from the cone is connected to a water distribution ring. The side of the water distribution ring near the water tank is connected to an L-shaped connecting pipe communicating with the inside of the water tank. The end of the L-shaped connecting pipe away from the water distribution ring extends towards the bottom of the water tank. When a high-speed spiral airflow is introduced into the cone through the air intake pipe, the airflow creates a negative pressure at the output end of the gas humidification mechanism, which draws the water in the water tank into the cone.

2. The industrial waste gas treatment device according to claim 1, characterized in that, The water flow discharged from the inlet pipe does not come into contact with the exhaust pipe.

3. The industrial waste gas treatment device according to claim 1, characterized in that, A water supply pipe is provided on the side of the water tank away from the L-shaped connecting pipe. An electromagnetic throttle valve is connected in series in the middle of the water supply pipe. Liquid level sensors connected to the side wall of the water tank are installed on both the upper and lower sides of the water supply pipe. Both liquid level sensors are electrically connected to the electromagnetic throttle valve. The water level detection height of the lower liquid level sensor is higher than the water inlet end of the L-shaped connecting pipe, and the water level detection height of the upper liquid level sensor is higher than the water outlet end of the water inlet pipe.

4. The industrial waste gas treatment device according to claim 3, characterized in that, The maximum flow rate of the water supply pipe is greater than the sum of the maximum flow rates of all the water inlet pipes.

5. An industrial waste gas treatment device according to claim 1, characterized in that, The bottom of the water tank is equipped with a baffle plate, and a sludge discharge port is opened at the bottom of the side wall of the water tank away from the sewage discharge mechanism.

6. The industrial waste gas treatment device according to claim 1, characterized in that, The water tank has flow stabilizing plates installed in the middle of the left and right side walls. The flow stabilizing plates are fixed to the side walls of the water tank in a cantilever manner, and a water flow passage is formed between their free ends and the opposite side walls of the water tank.

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