A dehumidification cyclone device and tail gas treatment system

Abstract

The present invention discloses a dehumidification cyclone device and an exhaust gas treatment system, which belongs to the technical field of exhaust gas treatment, and solves the problem in the prior art that dust particles and water vapor are mixed to form mud when the exhaust gas treatment equipment treats dust-containing waste gas, causing the exhaust pipe to be easily blocked. The device includes a cyclone plate, which is arranged at the exhaust pipe air inlet of the exhaust gas treatment system or in a device connected to the exhaust pipe air inlet; the cyclone plate includes an outer ring, a central column arranged in the inner ring area of ​​the outer ring, and a plurality of blades arranged between the outer ring and the central column, the first end of the blade is connected to the outer ring, the second end of the blade is connected to the central column, and the outer ring is connected to the inner wall of the exhaust pipe or the inner wall of the device connected to the exhaust pipe air inlet. The present invention can be used for water vapor separation of exhaust gas after treatment.

Description

Technical Field

[0001] The invention belongs to the technical field of tail gas treatment, and in particular relates to a dehumidification cyclone device and a tail gas treatment system. Background Art

[0002] In the production process of related products represented by semiconductors, solar photovoltaics, flat panel displays and LEDs, a large amount of exhaust gas will be generated. These harmful gases must be treated harmlessly before they can be discharged into the environment.

[0003] The harmless treatment method for these exhaust gases is to pass the gases into a high-temperature reaction chamber. The harmful gases react with oxygen at high temperature. Some of the solid particles generated are captured by the spray tower, some of the water-soluble gases are absorbed by the spray tower, and the rest are harmless products discharged.

[0004] When existing exhaust gas treatment equipment treats dust-containing exhaust gas, especially process exhaust gas containing SiO2 and water vapor such as Chemical Vapor Deposition (CVD), dust particles and water vapor will mix to form mud when passing through the exhaust pipe, causing the exhaust pipe to be easily blocked, requiring frequent shutdown for maintenance, and affecting production efficiency. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide a dehumidification cyclone device and an exhaust gas treatment system, which solves the problem in the prior art that dust particles mix with water vapor to form mud when the exhaust gas treatment equipment treats dust-containing exhaust gas, causing the exhaust pipe to be easily blocked.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] The present invention provides a dehumidification cyclone device, comprising a cyclone plate, which is arranged at the air inlet of an exhaust pipe of an exhaust gas treatment system or in a device connected to the air inlet of the exhaust pipe; the cyclone plate comprises an outer ring, a central column arranged in the inner area of ​​the outer ring, and a plurality of blades arranged between the outer ring and the central column, wherein the first end of the blade is connected to the outer ring, the second end of the blade is connected to the central column, and the outer ring is connected to the inner wall of the exhaust pipe or the inner wall of the device connected to the air inlet of the exhaust pipe.

[0008] Furthermore, the swirl plate is arranged in a device connected to the exhaust pipe air inlet, and the number of the swirl plates is 2, one of which is arranged at the air inlet end of the device connected to the exhaust pipe air inlet, and the other is arranged at the air outlet end of the device connected to the exhaust pipe air inlet.

[0009] Furthermore, the above-mentioned dehumidification cyclone device also includes a flushing component arranged at the air outlet end of the cyclone plate, and the water outlet of the flushing component faces the cyclone plate.

[0010] Furthermore, the flushing assembly includes a plurality of flushing nozzles, and the plurality of flushing nozzles are arranged in multiple layers.

[0011] Furthermore, the number of flushing nozzles on each layer is 1 to 3, and the flow rate of the flushing nozzles on each layer is 3 to 10 liters / minute.

[0012] Furthermore, the flushing component is for periodic spraying; and / or, a dehumidification component is arranged above the flushing component for supplying dry gas into the exhaust pipe or a device connected to the air inlet of the exhaust pipe.

[0013] Furthermore, the air supply pressure of the dehumidification component is 3-5 kgf / cm 2 , the gas supply flow rate is 20 to 200 liters / minute.

[0014] Furthermore, the number of the swirl plates is 1, and the number of layers of blades on the swirl plates is 1;

[0015] Alternatively, in the second mode, the number of the swirl plate is 1, and the number of layers of blades on the swirl plate is at least 2;

[0016] Alternatively, the number of swirl plates is at least 2, and the number of layers of blades on each swirl plate is 1;

[0017] Alternatively, the number of swirl plates is at least 2, and the number of layers of blades on each swirl plate is at least 2.

[0018] Furthermore, the dust content in the tail gas after treatment is less than 100mg / m 3 , the number of swirl plates is 2, and the number of blades in each swirl plate is 1 to 2 layers;

[0019] Alternatively, the dust content in the tail gas after treatment is 100-2000 mg / m 3 , the number of swirl plates is 1, and the number of layers of blades in each swirl plate is 1;

[0020] Or, the dust content in the exhaust gas after treatment is more than 2000mg / m 3 , the number of swirl plates is 1, and the number of layers of blades in each swirl plate is 1.

[0021] The present invention also provides an exhaust gas treatment system, comprising an exhaust pipe and the above-mentioned dehumidification cyclone device.

[0022] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0023] The dehumidification cyclone device provided by the present invention is provided with a cyclone blade, so that when the treated exhaust gas containing dust and droplets passes through the cyclone blade, the movement direction of the droplets and dust particles will change, so that the two will move in a spiral upward form. Under the action of centrifugal force, the droplets and dust particles, especially the droplets and dust particles with larger mass, will gradually concentrate on the inner wall area of ​​the exhaust pipe, and the concentrated droplets and dust will gradually merge into large droplets and dust particles, thereby realizing gas-liquid separation, thereby reducing the dust and water vapor content entering the exhaust gas, and reducing the occurrence of dust particles and water vapor mixing to form mud, which causes the exhaust pipe to be easily blocked.

[0024] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0026] Figure 1 A schematic diagram of the structure of a dehumidification cyclone device provided in Embodiment 1 of the present invention;

[0027] Figure 2 A schematic diagram of a first matching method of the adjusting protrusion, the second arc-shaped through hole and the blade in the dehumidification cyclone device provided in the first embodiment of the present invention, wherein the blade is in a horizontal state;

[0028] Figure 3 A schematic diagram of a second matching method of the adjusting protrusion, the second arc-shaped through hole and the blade in the dehumidifying cyclone device provided in the first embodiment of the present invention, wherein the blade is in an inclined state;

[0029] Figure 4 A schematic diagram of the connection between the dehumidification cyclone device provided in Example 1 of the present invention, the exhaust pipe and the spray tower;

[0030] Figure 5 This is a connection diagram of a water curtain guide flange assembly in an exhaust gas treatment system provided in Embodiment 2 of the present invention.

[0031] Reference numerals:

[0032] 1-vertical ring; 2-transverse ring; 3-fluid rotating flange; 4-swirl plate; 41-outer ring; 42-center column; 43-blade; 5-adjusting protrusion; 6-second arc-shaped through hole; 7-flushing component; 8-dehumidification component; 9-second ball joint structure; 10-exhaust pipe; 11-spray tower. DETAILED DESCRIPTION

[0033] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0034] Embodiment 1

[0035] This embodiment provides a dehumidification cyclone device, see Figures 1 to 4 , including a swirl sheet 4, which is arranged at the air inlet of the exhaust pipe 10 of the exhaust gas treatment system or in a device connected to the air inlet of the exhaust pipe 10, the swirl sheet 4 includes an outer ring 41, a central column 42 arranged in the inner area of ​​the outer ring 41, and a plurality of blades 43 arranged between the outer ring 41 and the central column 42, the first end of the blade 43 is connected to the outer ring 41, the second end of the blade 43 is connected to the central column 42, the outer ring 41 is connected to the inner wall of the exhaust pipe 10 or the inner wall of a device connected to the air inlet of the exhaust pipe 10 (for example, a spray tower 11).

[0036] Compared with the prior art, the dehumidification cyclone device provided in this embodiment is provided with a cyclone blade 4. In this way, when the treated exhaust gas containing dust and droplets passes through the cyclone blade 4, the movement direction of the droplets and dust particles will change, so that the two will move in a spiral upward form. Under the action of centrifugal force, the droplets and dust particles, especially the droplets and dust particles with larger mass, will gradually concentrate on the inner wall area of ​​the exhaust pipe 10, and the concentrated droplets and dust will gradually merge into large droplets and dust particles, thereby achieving gas-liquid separation, thereby reducing the dust and water vapor content entering the exhaust gas, and reducing the dust particles and water vapor mixing to form mud, which causes the exhaust pipe 10 to be easily blocked.

[0037] From the perspective of water vapor reduction effect, the swirl sheet 4 is arranged in the device connected to the air inlet of the exhaust pipe 10. The number of swirl sheets 4 is 2, one of which is arranged at the air inlet end (i.e., the lower end) of the device connected to the air inlet of the exhaust pipe 10, and the other is arranged at the air outlet end (i.e., the top end) of the device connected to the air inlet of the exhaust pipe 10.

[0038] In order to ensure the dehumidification swirl effect, it is necessary to comprehensively consider the size of the swirl plate 4, the number and inclination angle of the blades 43, and the gas flow rate. For example, the outer diameter of the swirl plate 4 is 100-300 mm, the height of the swirl plate 4 is 30-100 mm, the number of blades 43 is 8-20, the inclination angle of the blades 43 relative to the radial plane is 45-75°, and the gas flow rate is 2-8 m / s.

[0039] Considering that the inclination angle of the blade 43 relative to the radial plane will affect the swirl degree, in order to be able to adjust the swirl degree according to the actual exhaust gas conditions, the dehumidification swirl device further includes an adjustment ring (not shown in the figure) and a cylindrical adjustment protrusion 5, see Figures 2 to 3 The adjustment ring is rotatably sleeved on the outer wall of the exhaust pipe 10 or the outer wall of the device connected to the air inlet of the exhaust pipe 10. A first arc-shaped through hole (not shown in the figure) with the ball joint structure at the second end as the center is opened on the outer ring 41. A second arc-shaped through hole 6 with the ball joint structure at the second end as the center is opened on the side wall of the exhaust pipe 10 or the side wall of the device connected to the air inlet of the exhaust pipe 10. The first arc-shaped through hole and the second arc-shaped through hole 6 are both arranged along the axial direction of the outer ring 41, and the first arc-shaped through hole coincides with the second arc-shaped through hole. The first end of the above-mentioned blade 43 is rotatably fixedly connected to the outer ring 41 through the first ball-joint structure, and the second end of the blade 43 is rotatably fixedly connected to the center column 42 through the second ball-joint structure 9. One end of the adjusting protrusion 5 is fixedly connected to the second end of the blade 43, and the other end of the adjusting protrusion 5 passes through the first arc-shaped through hole and the second arc through hole in sequence and is fixedly connected to the adjusting ring. This is because the swirl plate 4 is arranged on the inner wall of the exhaust pipe 10 or the inner wall of the device connected to the air inlet of the exhaust pipe 10, and the angle of the blade 43 cannot be directly adjusted. By setting the adjustment ring, the adjustment protrusion 5 and the arc-shaped through hole, the adjustment ring is rotated to drive the adjustment protrusion 5 to move upward or downward along the first arc-shaped through hole and the second arc-shaped through hole, so that the distance between the projection of the adjustment protrusion 5 and the ball joint structure at the second end in the radial plane changes, and the blade 43 rotates at a certain angle, so that the inclination angle of the blade 43 can be adjusted according to the actual exhaust gas treatment conditions.

[0040] It should be noted that, due to the arrangement of the adjustment ring, it can cover the second arc-shaped through hole 6, so exhaust gas leakage will basically not occur.

[0041] It is worth noting that when the exhaust gas after the treatment of dust and droplets passes through the swirl plate 4, it will inevitably collide with the blades 43, the outer ring 41 and the central column 42 of the swirl plate 4, and deposit on the surface of the swirl plate 4. If it is not cleaned, it will block the swirl plate 4, resulting in high exhaust pressure. Therefore, the above-mentioned dehumidification swirl device also includes a flushing component 7 arranged at the outlet end of the swirl plate 4, and the water outlet of the flushing component 7 faces the swirl plate 4. In this way, when a lot of dust is deposited on the swirl plate 4, the flushing component 7 can be opened, and the dust on the swirl plate 4 can be flushed by the water flow sprayed by the flushing component 7.

[0042] Specifically, the structure of the flushing component 7 includes a plurality of flushing nozzles, which are arranged in multiple layers. The water outlet shape of the flushing nozzles is a columnar water flow. The number of flushing nozzles on each layer is 1 to 3, and the flow rate of each layer of flushing nozzles is 3 to 10 liters / minute.

[0043] In order to automatically determine the degree of dust deposition on the swirl blade 4, so as to automatically start the flushing component 7, the above-mentioned dehumidification swirl device also includes a flushing controller (not shown in the figure) and an infrared sensor (not shown in the figure), and the projections of two adjacent blades 43 in the axial direction have an overlapping area. In the overlapping area, the transmitting end of the infrared sensor is arranged on one of the blades 43, and the receiving end of the infrared sensor is arranged on the other blade 43. The transmitting end and the receiving end are located in corresponding positions, and the transmitting end, the flushing controller and the flushing component 7 are connected in sequence. During implementation, the receiving end receives the signal sent by the transmitting end in real time and transmits it to the flushing controller. Once the flushing controller does not receive the signal sent by the receiving end within the time threshold range (for example, 5s), it means that the dust deposition on the swirl blade 4 is too much, and the flushing controller controls the flushing component 7 to start, flush the swirl blade 4, and flush the dust on the swirl blade 4 into the water tank.

[0044] Alternatively, the above-mentioned dehumidification cyclone device also includes a flushing controller (not shown in the figure) and a pressure sensor (not shown in the figure). The pressure sensor is arranged on the blade 43, or the pressure sensor can also be arranged at any position between the exhaust gas inlet and the air inlet end of the dehumidification cyclone device. During implementation, the pressure data collected by the pressure sensor in real time is sent to the flushing controller. The flushing controller determines whether the pressure data exceeds the pressure threshold. If it exceeds, it means that there is too much dust deposition on the cyclone sheet 4. The flushing controller controls the flushing component 7 to open, flush the cyclone sheet 4, and flush the dust on the cyclone sheet 4 into the water tank. Considering that the flushing component 7 will inevitably increase the water vapor content of the treated exhaust gas during the flushing process of the cyclone sheet 4, in order to reduce the influence of the flushing component 7 on the water vapor content, illustratively, the following two methods can be adopted:

[0045] In the first mode, the flushing component 7 is sprayed regularly, illustratively, once every 10 to 30 minutes.

[0046] Alternatively, a dehumidification component 8 (e.g., a dehumidification cylinder and / or a dehumidification nozzle) is provided above the flushing component 7, and under the effect of the exhaust negative pressure, a dry gas (e.g., dry compressed air or dry compressed nitrogen) is supplied to the exhaust pipe 10 or a device connected to the air inlet of the exhaust pipe 10, so as to dilute the water vapor in the treated exhaust gas and reduce the water vapor content therein. The air supply pressure is 3 to 5 kgf / cm 2 , the gas supply flow rate is 20 to 200 liters / minute.

[0047] For the number of swirl plates 4 and the number of blades 43 on each swirl plate 4, the following method can be used, for example:

[0048] In the first mode, the dehumidification cyclone device comprises a cyclone plate 4, and the number of layers of blades 43 on the cyclone plate 4 is one.

[0049] In a second embodiment, the dehumidification cyclone device comprises a cyclone plate 4, and the number of layers of blades 43 on the cyclone plate 4 is at least 2.

[0050] In a third embodiment, the dehumidification cyclone device comprises at least two cyclone plates 4, and each cyclone plate 4 has one layer of blades 43.

[0051] In a fourth embodiment, the dehumidification cyclone device comprises at least two cyclone plates 4, and the number of layers of blades 43 on the cyclone plates 4 is at least two.

[0052] It should be noted that, from the dual perspectives of water vapor separation effect, anti-blocking effect and structural simplification, in practical applications, the second method or the third method can be selected.

[0053] In actual application, from the perspective of the amount of dust in the treated exhaust gas and the flow resistance, in order to ensure sufficient separation of water vapor, it is also necessary to adjust the number of swirl plates 4 and the number of blades 43 on each layer of swirl plates 4. For specific parameters, see Table 1.

[0054] Table 1 Correspondence between the amount of dust and the number of swirl plates 4 and the number of blades 43 on each layer of swirl plates 4

[0055] Dust amount Number of swirl blades Number of blades on each swirl plate <![CDATA[Less than 100 mg / m 3 > 2 1st to 2nd floor <![CDATA[100~2000mg / m 3 ]]> 1 1st floor <![CDATA[More than 2000mg / m 3 > 1 1st floor

[0056] It should be noted that in the field of tail gas treatment technology, it is generally believed that the more treatment equipment there are, the more beneficial the effect will be. However, this embodiment found that when the dust content in the tail gas after treatment exceeds 100 mg / m 3 After that, the increase in the number of swirl plates 4 will affect the flow of the treated exhaust gas, which is not conducive to improving the effect.

[0057] In order to avoid excessive dust deposition on the swirl blades 4 , at least one flushing assembly 7 needs to be arranged above each swirl blade 4 .

[0058] In order to facilitate the observation of the water vapor reduction effect, a transparent observation window is provided on the inner wall of the exhaust pipe 10 or the side wall of the device connected to the air inlet of the exhaust pipe 10 at a position corresponding to the swirl plate 4, through which the dust situation and water vapor separation effect on the swirl plate 4 can be clearly observed.

[0059] Through testing, it can be known that when the dehumidification cyclone device with the above-mentioned structure is used, the spray volume of the flushing component 7 is 7 liters / minute, the treated exhaust gas flow rate is 4000 liters / minute, and the air supply flow rate of the dehumidification component 8 is 150 liters / minute, based on the exhaust gas temperature of 30°C, the water vapor content of the treated exhaust gas can be reduced to one third of the original.

[0060] Embodiment 2

[0061] This embodiment provides an exhaust gas treatment system, including an exhaust pipe 10, a spray tower 11 connected to the air inlet of the exhaust pipe 10, and the dehumidification cyclone device provided in the first embodiment.

[0062] Compared with the prior art, the beneficial effects of the exhaust gas treatment system provided in this embodiment are substantially the same as the beneficial effects of the dehumidification cyclone device provided in the first embodiment, and are not described in detail here.

[0063] In order to achieve efficient treatment of tail gas, the tail gas treatment system further includes a thermal decomposition chamber, a reaction chamber and a water curtain guide flange assembly provided in Example 1, and the thermal decomposition chamber is connected to the reaction chamber via the water curtain guide flange assembly.

[0064] For the water curtain guide flange assembly structure, see Figure 5 , including a fluid rotating flange 3 and a guide baffle, an overflow groove is provided on the upper surface of the fluid rotating flange 3, the guide baffle includes a vertical ring 1 and a transverse ring 2 connected to the vertical ring 1, the transverse ring 2 is arranged above the overflow groove and has a first gap with the overflow groove, the vertical ring 1 is arranged on the side wall of the fluid rotating flange 3 and has a second gap with the side wall of the fluid rotating flange 3, the first gap and the second gap are connected to form a fluid channel between the water outlet of the fluid rotating flange 3 and the reaction chamber. During implementation, the rotating water flow fills the overflow groove, the guide baffle guides the water flow to flow to the side wall of the reaction chamber along the tangent direction of the inner wall of the fluid rotating flange 3, and the fluid forms a spiral uniform water curtain on the inner wall of the reaction chamber. In this way, on the one hand, by setting the guide baffle, the gap between the guide baffle and the fluid rotating flange 3 serves as a fluid channel between the water outlet of the fluid rotating flange 3 and the reaction chamber. When the fluid passes through this fluid channel, under the action of the swirl, it can basically fill the entire circle of the fluid channel, and the swirl fluid flowing out of this fluid channel can more evenly cover the inner wall of the reaction chamber, reduce the accumulation of dust particles on the side wall of the reaction chamber, and avoid clogging of the reaction chamber. On the other hand, the setting of the transverse ring 2 is equivalent to setting a cover on the upper surface of the fluid rotating flange 3, which can reduce the reflux of water vapor on the upper surface of the fluid rotating flange 3 to the thermal decomposition chamber, and the reflux of water vapor damages the electronic components in the flame generator in the thermal decomposition chamber. The setting of the vertical ring 1 can provide a certain shielding to the upper part of the water curtain on the side wall of the reaction chamber, and can also reduce the reflux of water vapor on the upper surface of the fluid rotating flange 3 to the thermal decomposition chamber, and the reflux of water vapor damages the electronic components in the flame generator in the thermal decomposition chamber.

[0065] Exemplarily, in order to better cover the overflow groove, the radial width of the end of the transverse ring 2 away from the side wall of the fluid rotating flange 3 exceeds the overflow groove by 15 to 25 mm (for example, 20 mm).

[0066] Considering that the width of the overflow groove directly affects the water supply speed, in order to form a more uniform water curtain, the radial width of the overflow groove is 20 to 30 mm (for example, 25 mm).

[0067] Similarly, since the first gap and the second gap are connected to form a fluid channel between the water outlet of the fluid rotating flange 3 and the reaction chamber, the size of the fluid channel will directly affect the water supply speed. For example, the height of the first gap is 4 to 8 mm, and the radial width of the second gap is 4 to 8 mm.

[0068] It should be noted that, by limiting the above dimensions, it is basically possible to ensure that the flow rate of the swirl water curtain in the reaction chamber is 8 to 32 L / min (for example, 16 L / min), thereby ensuring the formation of a uniform water curtain.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A tail gas treatment system, characterized in that: It includes an exhaust pipe, a spray tower, a thermal decomposition chamber, a reaction chamber and a dehumidification cyclone device, wherein the spray tower is connected to the air inlet of the exhaust pipe, and the thermal decomposition chamber is connected to the reaction chamber through a water curtain guide flange assembly; The dehumidification cyclone device comprises a cyclone blade, and the cyclone blade is arranged at the air inlet of the exhaust pipe of the exhaust gas treatment system; The swirl plate includes an outer ring, a central column arranged in the inner ring area of ​​the outer ring, and a plurality of blades arranged between the outer ring and the central column, wherein the first end of the blade is connected to the outer ring, the second end of the blade is connected to the central column, and the outer ring is connected to the inner wall of the exhaust pipe; The corresponding relationship between the amount of dust in the exhaust gas after treatment, the number of swirl plates, and the number of blades on each layer of swirl plates is as follows: The dust content in the exhaust gas after treatment is less than 100mg / m 3 , the number of the swirl plates is 2, and the number of layers of blades in each swirl plate is 2; The dust content in the tail gas after treatment is 100~2000mg / m 3 , the number of the swirl plates is 1, and the number of layers of blades in each swirl plate is 1; The dust content in the exhaust gas after treatment is more than 2000mg / m 3 , the number of the swirl plates is 1, and the number of layers of blades in each swirl plate is 1; The dehumidification cyclone device also includes a flushing component, a flushing controller and an infrared sensor arranged at the air outlet end of the cyclone plate, the water outlet of the flushing component faces the cyclone plate; the projections of two adjacent blades in the vertical direction have no gap, and the projections of two adjacent blades in the axial direction have an overlapping area, in the overlapping area, the transmitting end of the infrared sensor is arranged on one of the blades, and the receiving end of the infrared sensor is arranged on the other blade, the transmitting end and the receiving end are located correspondingly, and the transmitting end, the flushing controller and the flushing component are connected in sequence; the receiving end receives the signal sent by the transmitting end in real time and transmits it to the flushing controller, and if the flushing controller does not receive the signal sent by the receiving end within the time threshold range, the flushing controller controls the flushing component to open and flush the cyclone plate; The first end of the blade is rotatably fixedly connected to the outer ring through a first ball joint structure, and the second end of the blade is rotatably fixedly connected to the central column through a second ball joint structure; The dehumidification cyclone device also includes an adjustment ring and a cylindrical adjustment protrusion, the adjustment ring can be rotatably sleeved on the outer wall of the exhaust pipe, the outer ring is provided with a first arc-shaped through hole with the ball joint structure at the second end as the center, the side wall of the exhaust pipe is provided with a second arc-shaped through hole with the ball joint structure at the second end as the center, the first arc-shaped through hole and the second arc-shaped through hole are both arranged along the axial direction of the outer ring, the first arc-shaped through hole coincides with the second arc-shaped through hole, the first end of the blade is rotatably fixedly connected to the outer ring through the first ball joint structure, the second end of the blade is rotatably fixedly connected to the center column through the second ball joint structure, one end of the adjustment protrusion is fixedly connected to the second end of the blade, and the other end of the adjustment protrusion passes through the first arc-shaped through hole and the second arc-shaped through hole in sequence and then is fixedly connected to the adjustment ring; By rotating the adjusting ring, the adjusting protrusion is driven to move upward or downward along the first arc-shaped through hole and the second arc-shaped through hole, so that the distance between the adjusting protrusion and the projection of the ball joint structure at the second end in the radial plane changes, and the blade rotates; The flushing assembly comprises a plurality of flushing nozzles, which are arranged in multiple layers, and the water outlet shape of the flushing nozzles is a columnar water flow; The water curtain guide flange assembly includes a fluid rotating flange and a guide baffle, an overflow groove is provided on the upper surface of the fluid rotating flange, the guide baffle includes a vertical ring and a transverse ring connected to the vertical ring, the transverse ring is arranged above the overflow groove and has a first gap with the overflow groove, the vertical ring is arranged on the side wall of the fluid rotating flange and has a second gap with the side wall of the fluid rotating flange, the first gap and the second gap are connected to form a fluid channel between the water outlet of the fluid rotating flange and the reaction chamber; The rotating water flow fills the overflow trough, and the guide baffle guides the water flow to flow toward the side wall of the reaction chamber along the tangent direction of the inner wall of the fluid rotating flange, so that the fluid forms a spiral uniform water curtain on the inner wall of the reaction chamber; The gap between the guide baffle and the fluid rotating flange serves as a fluid channel between the water outlet of the fluid rotating flange and the reaction chamber. Under the action of the swirl flow, the fluid fills the entire circle of the fluid channel when passing through the fluid channel.

2. The exhaust gas treatment system according to claim 1, characterized in that: The number of flushing nozzles on each layer is 1 to 3, and the flow rate of the flushing nozzles on each layer is 3 to 10 liters / minute.

3. The exhaust gas treatment system according to claim 1, characterized in that: The flushing component is a regular spraying component; And / or, a dehumidification component is arranged above the flushing component to supply dry gas into the exhaust pipe.

4. The exhaust gas treatment system according to claim 3, characterized in that: The air supply pressure of the dehumidification component is 3~5kgf / cm 2 , the gas supply flow rate is 20~200 liters / minute.

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