Demisting blade and demisting device

Abstract

The present invention discloses a demisting blade and a demister, which belong to the field of flue gas purification technology. The key points of its technical solution are a demisting blade, including a mounting part, an intercepting part and a guiding part. One end of the intercepting part is fixedly connected to the mounting part, and the other end is fixedly connected to the guiding part. The parts where the intercepting part is connected to the mounting part and the intercepting part have a smooth transition. The intercepting part is an arc-shaped plate structure, and the intercepting part adopts the arc of the fastest curve to achieve the effect of improving the demisting efficiency of the demister.

Description

Technical Field

[0001] The present invention relates to the field of gas-liquid separation, and in particular to a demisting blade and a demister. Background Art

[0002] At present, exhaust gas carrying small droplets may be generated during industrial production. In order to make the exhaust gas meet the emission standards, the exhaust gas is usually subjected to gas-liquid separation treatment, and the droplets in the exhaust gas are separated before being discharged.

[0003] In the related technology, when performing gas-liquid separation on the exhaust gas, a demister is often used. The demister is installed in the exhaust gas discharge pipe and connected to the pipe. The demister includes wire mesh type, corrugated plate type, cyclone type and other styles. The corrugated plate type demister is equipped with multiple demister blades. The demister blades are corrugated plate structures. The multiple demister blades are evenly arranged in a direction perpendicular to the air supply direction. The demister blades are connected with clamps. The clamps are clamped with the multiple demister blades and limit the relative positions of the multiple demister blades. When the exhaust gas carrying droplets enters the gaps between the multiple demister blades through the air inlet end, the flue gas hits the demister blades at a certain speed, and the small droplets in the flue gas are captured by the demister blades. When the liquid captured by the demister blades gradually accumulates and reaches a certain weight, the droplets slide to the air inlet end under the action of their own gravity, reducing the droplets carried in the exhaust gas discharged to the outside through the air outlet end of the demister, and reducing the pollution of the pollutants contained in the droplets to the external environment.

[0004] Regarding the above-mentioned related technologies, when the exhaust gas flow rate is too high, the droplets may be entrained into the exhaust gas for the second time. When the exhaust gas flow rate is low, the droplets may remain on the defogger blades and form scale, thereby blocking the gaps between the defogger blades, resulting in a low demisting efficiency of the defogger. Summary of the Invention

[0005] In order to improve the demisting efficiency of a demister, the present invention provides a demisting blade and a demister.

[0006] In a first aspect, the present invention provides a demisting blade adopting the following technical solution:

[0007] A demisting blade comprises a mounting portion, an intercepting portion and a guiding portion, wherein one end of the intercepting portion is fixedly connected to the mounting portion, and the other end is fixedly connected to the guiding portion, and the portions where the intercepting portion is connected to the mounting portion and the intercepting portion are smoothly transitioned, the intercepting portion is an arc-shaped plate structure, and the intercepting portion and the guiding portion both adopt the arc of the fastest curve.

[0008] By adopting the above technical solution, the guide part can guide the flow direction of the exhaust gas so that the exhaust gas flows toward the interception part. When the exhaust gas collides with the interception part, the droplets carried in the exhaust gas are captured by the interception part. The captured liquid gradually accumulates to a certain weight and then flows downward. Since the interception part and the guide part both adopt the fastest curve arc, the falling speed of the droplets can be increased, and the droplets at different positions can fall off from the defogger blades at the same time, reducing the occurrence of droplets falling everywhere when falling, thereby improving the defogger efficiency of the defogger.

[0009] Preferably, the intercepting portion is connected to a protruding portion, and the protruding portion is fixedly connected to the side surface of the intercepting portion to increase the impact area.

[0010] By adopting the above technical solution, the protrusion is fixedly connected to the interception part, which can increase the impact area of the exhaust gas when it flows to the interception part, so that the droplets in the exhaust gas are further captured by the protrusion, reducing the content of droplets in the exhaust gas discharged to the outside, and reducing secondary entrainment, thereby improving the demisting efficiency.

[0011] Preferably, the protrusion is provided at an end of the intercepting portion close to the guiding portion, and the protrusion is located on a side of the intercepting portion away from the mounting portion.

[0012] By adopting the above technical solution, the protrusion is close to the guide part, so that the exhaust gas guided through the guide part to flow to the intercepting part can first be captured by the protrusion for a part of the droplets, and the direction of the airflow is changed, so that the exhaust gas can fully contact the defogger blades, thereby improving the defogger efficiency and reducing environmental pollution.

[0013] Preferably, the protrusion is a protruding baffle, the length direction of the protruding baffle is perpendicular to the conveying direction of the exhaust gas, one side of the protruding baffle in the length direction is fixedly connected to the intercepting portion, and the space formed by the protruding baffle and the intercepting portion faces the air intake end.

[0014] By adopting the above technical solution, the space formed by the protruding baffle and the intercepting portion faces the air intake end, which can make the exhaust gas flow back in the space formed by the protruding baffle and the intercepting portion, changing the direction of the airflow, and the droplets in the exhaust gas can be captured by the protruding baffle. When the droplets on the protruding baffle accumulate to a certain extent, the droplets drip downwards, thereby improving the efficiency of the droplet falling.

[0015] In a second aspect, the present invention provides a demister that adopts the following technical solution:

[0016] Preferably, it includes a defogger assembly and a flushing mechanism, the defogger assembly includes a supporting box and a liquid collecting box, the side wall of the supporting box is provided with a defogger port, and the top surface is provided with a placement hole for placing the defogger blades, a plurality of the defogger blades are provided, and the plurality of the defogger blades are arranged at equal intervals in a direction perpendicular to the exhaust gas conveying direction, so that the exhaust gas is conveyed to the interior of the supporting box through the defogger port, and discharged to the outside through the gaps between the plurality of the defogger blades, the plurality of the defogger blades are relatively fixedly connected to the supporting box, the flushing mechanism includes a flushing assembly for flushing the defogger blades, the flushing assembly is connected to the supporting box, the liquid collecting box is located below the supporting box, the liquid collecting box is connected to a liquid collecting pipe, one end of the liquid collecting pipe is fixedly connected to the supporting box, and the other end is fixedly connected to the liquid collecting box, for connecting the supporting box and the liquid collecting box.

[0017] By adopting the above technical solution, multiple defogger blades are located in the placement holes and are relatively fixedly connected to the supporting box body, so that the exhaust gas can be transported to the gaps between the multiple defogger blades through the defogger port, and discharged to the outside after defogger. The droplets falling from the defogger blades can accumulate inside the supporting box body and enter the collecting box through the collecting pipe to be stored, which is not easy to cause pollution to the surrounding environment. The defogger port is opened on the side wall of the supporting box body, which can reduce the droplets falling from the defogger port and be discharged to the outside world; the flushing component can clean the defogger blades, so that it is not easy to scale between the defogger blades, thereby affecting the defogger efficiency.

[0018] Preferably, the flushing assembly includes a flushing bracket and a flushing nozzle. The flushing bracket is located above the support box and is connected to the support box in a relative sliding manner. The sliding direction of the flushing bracket is perpendicular to the exhaust gas delivery direction. There are multiple flushing nozzles, and the multiple flushing nozzles are arranged at equal intervals along the length direction of the flushing bracket. The multiple flushing nozzles are fixedly connected to the flushing bracket.

[0019] By adopting the above technical solution, the flushing bracket can support the flushing nozzle, so that the flushing nozzle can stably flush the defogger blades, reduce the solid dirt formed between the defogger blades, and improve the defogger efficiency.

[0020] Preferably, the flushing mechanism also includes a synchronization component and a drainage baffle, a plurality of drainage holes are provided on the inner wall of the support box, the drainage holes are close to the bottom of the support box, a buffer chamber is provided inside the support box, the buffer chamber is located below the placement hole and is connected to the placement hole, the buffer chamber is connected to the drainage hole, the drainage baffle is connected to the support box for relative rotation, the support box is provided with a second working chamber for the drainage baffle to rotate, the drainage hole is connected to the second working chamber, the synchronization component is respectively connected to the drainage baffle and the flushing nozzle, and is used to make the drainage baffle rotate when the flushing bracket slides, so that the buffer chamber is connected to the second working chamber through the drainage hole.

[0021] By adopting the above technical solution, when the flushing nozzle flushes the defogger blade, the drainage baffle releases the cover on the drainage hole under the action of the synchronization component, and the flushing liquid flows into the buffer chamber through the placement hole, and is transported to the second working chamber through the drainage hole, so as to facilitate the timely discharge of the liquid in the buffer chamber; when the exhaust gas needs to be defogged, the drainage baffle rotates to cover the drainage hole under the action of the synchronization component, separating the second working chamber from the buffer chamber, making it difficult for the exhaust gas to enter the second working chamber, thereby affecting the defogger efficiency.

[0022] The cam is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip and the toothed connecting strip is connected with the toothed connecting strip.

[0023] By adopting the above technical solution, the flushing bracket is moved, driving the support rod and the synchronous baffle to slide, so that when the flushing nozzle moves to the flushing position, the synchronous baffle covers the liquid collecting pipe, making it difficult for the flushing liquid to enter the liquid collecting tank, thereby achieving the effect of separating the flushing liquid from the collected droplets. During the movement of the synchronous baffle, the synchronous rack is driven to slide and the synchronous gear is rotated, so that the connecting rod drives the drainage baffle to rotate and expose the drainage hole, so that the second working chamber is connected to the buffer chamber, which is convenient for discharging the flushing liquid; when performing defogger work, the flushing bracket is reset, and at this time the drainage baffle is rotated to cover the drainage hole, and the synchronous baffle slides to expose the liquid collecting pipe, so that the buffer chamber is connected to the liquid collecting tank, so that the droplets captured in the exhaust gas enter the liquid collecting tank, and at the same time, the exhaust gas is not easily leaked to the outside through the drainage hole, thereby improving the defogger efficiency.

[0024] Preferably, the width of the support rod is greater than the diameter of the demister port, so that when the flushing nozzle moves to the flushing position, the support rod covers the demister port.

[0025] By adopting the above technical solution, when the flushing nozzle moves to the flushing position, the synchronous baffle covers the end of the liquid collecting pipe close to the support box, and the support rod covers the defogger port, which can limit the flow of the flushing liquid and make it difficult for the flushing liquid to enter the defogger port or the liquid collecting pipe, thereby affecting the subsequent defogger effect and droplet recovery effect.

[0026] Preferably, the flushing mechanism includes a flushing box, the flushing box is connected to a drain pipe, one end of the drain pipe is fixedly connected to the flushing box, and the other end is fixedly connected to the support box, and the interior of one end of the drain pipe close to the support box is connected to the interior of the second working chamber, and the flushing box is connected to a filter assembly for filtering the cleaning liquid.

[0027] By adopting the above technical solution, the flushing box can collect the flushing liquid in the buffer chamber through the drain pipe. Under the action of the filtering component, the solid impurities contained in the flushing liquid can be filtered, which is convenient for the staff to recycle the flushing liquid, save resources and improve the flushing efficiency.

[0028] In summary, the present invention has the following beneficial effects:

[0029] 1. When the exhaust gas is transported from the guide part to the installation part, it is first guided by the guide part in its flow direction, and then hits the surface of the interception part. After the droplets carried in the exhaust gas are captured by the interception part, the exhaust gas continues to flow toward the installation part and is discharged to the outside. After the droplets remaining on the interception part gradually accumulate to a certain weight, they fall downward under the action of their own gravity. Since both the interception part and the guide part adopt the fastest curve, the speed of the droplet falling is accelerated, the demisting efficiency is improved, and the secondary entrainment of droplets in the exhaust gas is reduced.

[0030] 2. When the flushing nozzle moves to the cleaning position, the synchronous baffle covers one end of the liquid collecting pipe close to the supporting box body, which can prevent the flushing liquid from flowing into the liquid collecting box. The support rod covers the defogger port, which can prevent the flushing liquid from being discharged to the outside through the defogger port and polluting the external environment. At the same time, under the action of the synchronous rack and synchronous gear, the connecting rod drives the drainage baffle to rotate until the buffer chamber is connected to the second working chamber, so that the flushing liquid can enter the second working chamber through the drainage hole; when it is necessary to defog the exhaust gas, the flushing bracket is reset, and the drainage baffle can be rotated to cover the drainage hole, so that the staff can quickly adjust the connection between the buffer chamber and the second working chamber, the liquid collecting box and the defogger port as needed, thereby improving the defogger efficiency.

[0031] 3. The filter component can filter the flushing liquid after flushing the demisting blades, reduce the solid impurities in the flushing liquid, and facilitate the staff to recycle the filtered flushing liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of Example 1 of the present application.

[0033] Figure 2 It is a structural diagram of Example 2 of the present application.

[0034] Figure 3 It is a structural diagram of Example 3 of the present application.

[0035] Figure 4 Embodiment 3 of the present application is intended to show a partial cross-sectional view of the first sliding groove and the second sliding groove.

[0036] Figure 5 This is an enlarged view of the part of point A shown in Example 3 of the present application.

[0037] Figure 6 Example 3 of the present application is intended to show a cross-sectional view of the filter assembly.

[0038] Figure 7 This is a schematic diagram of the local structure of the synchronization component intended to be shown in Example 3 of the present application.

[0039] Figure 8 This is a partial cross-sectional view of Example 3 of the present application intended to show the connecting groove.

[0040] Description of reference numerals:

[0041] 1. Demisting blade; 11. Mounting portion; 12. Intercepting portion; 13. Guide portion; 14. Protruding baffle; 2. Demisting assembly; 21. Card plate; 211. Card slot; 22. Support box; 221. Placement hole; 222. Buffer chamber; 223. Demisting port; 224. First sliding slot; 225. Second sliding slot; 226. Drain hole; 227. First working chamber; 228. Second working chamber; 229. Connecting slot; 23. Demisting pipe; 24. Collecting Liquid tank; 241, liquid collecting pipe; 3, flushing mechanism; 31, flushing assembly; 311, support rod; 3111, smoke baffle; 312, flushing bracket; 313, flushing nozzle; 32, synchronization assembly; 321, synchronization baffle; 322, synchronization rack; 323, synchronization gear; 33, drainage baffle; 331, connecting rod; 34, flushing box body; 341, drainage pipe; 4, filter assembly; 41, filter plate; 42, circulation pipe; 43, sewage pipe. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] A demisting blade, such as Figure 1 As shown, it includes a mounting portion 11, an intercepting portion 12 and a guiding portion 13. The mounting portion 11 is a vertical plate-like structure. One end of the intercepting portion 12 is fixedly connected to the bottom surface of the mounting portion 11, and the other end is fixedly connected to the guiding portion 13. The connection between the intercepting portion 12 and the mounting portion 11 and the guiding portion 13 is a smooth transition, and the intercepting portion 12 and the guiding portion 13 are both plate-like structures with the fastest curve radian in the longitudinal section, and the bending direction of the guiding portion 13 is opposite to the bending direction of the intercepting portion 12.

[0045] The use process of a demisting blade 1 is as follows:

[0046] When in use, the side of the guide part 13 away from the intercepting part 12 is the air inlet end, and the side of the mounting part 11 away from the intercepting part 12 is the air outlet end. The exhaust gas is conveyed in the direction from the guide part 13 to the mounting part 11. When the exhaust gas is conveyed from the air inlet end to the air outlet end, the droplets carried in the exhaust gas are captured by the intercepting part 12. Since the intercepting part 12 and the guide part 13 adopt the fastest curve arc, the droplets accumulated at different positions of the intercepting part 12 can simultaneously break away from the bottom of the demisting blade 1 when they reach a certain weight, and fall at a faster speed, shortening the time the droplets stay on the demisting blade 1 and enhancing the demisting efficiency.

[0047] Example 2

[0048] like Figure 2As shown, the difference from Example 1 is that it also includes a protrusion, which can be a protruding column, the length direction of the protruding column is parallel to the length direction of the intercepting portion 12, and the protruding column is fixedly connected to the side of the intercepting portion 12 away from the guide portion 13. It can also be a protruding baffle 14, which is a plate-like structure with a length direction parallel to the length direction of the intercepting portion 12. One end of the protruding baffle 14 is fixedly connected to the end of the intercepting portion 12 close to the guide portion 13, and the other end is inclined in the direction away from the intercepting portion 12, and the protruding baffle 14 is located on the side of the intercepting portion 12 away from the mounting portion 11, and the opening formed by the protruding baffle 14 and the intercepting portion 12 faces the guide portion 13.

[0049] When in use, when the exhaust gas flows to the space between the protruding baffle 14 and the intercepting portion 12, a backflow can be formed to further capture droplets, while slowing down the flow speed of the exhaust gas, reducing the droplets contained in the exhaust gas when it is transported from the outlet to the outside, and enhancing the demisting effect.

[0050] Example 3

[0051] A demister equipped with the above-mentioned demister blade 1, such as Figure 3 As shown, it includes a defogger assembly 2, a flushing mechanism 3 and a filter assembly 4. The defogger blades 1 are connected to the defogger assembly 2 for removing droplets carried in the exhaust gas. The flushing mechanism 3 is connected to the defogger assembly 2 for cleaning the defogger blades 1. The filter assembly 4 is connected to the defogger assembly 2 for filtering the flushing liquid after flushing so that the filtered flushing liquid can be recycled.

[0052] like Figure 3 and Figure 4 As shown, the defogger assembly 2 includes a card plate 21, a support box 22, a defogger pipe 23 and a liquid collecting box 24. A plurality of defogger blades 1 are arranged at equal intervals in the horizontal direction to form a rectangular blade group. A plurality of horizontal card plates 21 are provided. The card plates 21 are provided with card slots 211 whose number is equal to the number of the defogger blades 1. The plurality of card plates 21 are respectively plugged into the two sides of the top surface and the two sides of the bottom surface of the blade group. The top surface of the support box 22 is provided with a placement hole 221 for accommodating the plurality of defogger blades 1. The side walls of the plurality of card plates 21 are respectively fixedly connected to the inner walls of the placement hole 221, and the length direction of the defogger blade 1 is perpendicular to the height direction of the support box 22. The top surface of the mounting portion 11 is flush with the top surface of the support box 22.

[0053] like Figure 3 and Figure 4As shown, the support box body 22 is provided with a buffer cavity 222, and the buffer cavity 222 is located below the placement hole 221 and is communicated with the placement hole 221. A defogger port 223 is provided on the side wall of the support box body 22, and the defogger port 223 is communicated with the buffer cavity 222. The defogger pipe 23 is located on the side of the support box body 22 where the defogger port 223 is provided. One end of the defogger pipe 23 is fixedly connected to the side wall of the support box body 22, and the interior of the defogger pipe 23 is communicated with the defogger port 223, so that the interior of the defogger pipe 23 is communicated with the interior of the buffer cavity 222; the liquid collecting box 24 is located below the support box body 22, and the liquid collecting box 24 is connected to a liquid collecting pipe 241, one end of the liquid collecting pipe 241 extends into the interior of the support box body 22 and is communicated with the buffer cavity 222, and the other end is fixedly connected to the top surface of the liquid collecting box 24 and is communicated with the interior of the liquid collecting box 24.

[0054] During use, the exhaust gas carrying droplets is transported to the buffer chamber 222 through the defogger pipe 23 and moves in the direction close to the defogger blade 1. When the exhaust gas flows through the channel formed between the multiple defogger blades 1, the flow direction is guided by the guide part 13. The droplets carried in the exhaust gas are accumulated on the surface of the interception part 12 when they are captured by the interception part 12. When the droplets accumulate to a certain extent, since the interception part 12 and the guide part 13 adopt the fastest curve arc, the droplets can quickly fall into the buffer chamber 222 under the action of their own gravity and be transported to the liquid collecting box 24 through the collecting pipe 241, which is convenient for the staff to handle in a centralized manner and improves the defogger efficiency of the defogger.

[0055] like Figure 5 and Figure 6 As shown, the flushing mechanism 3 includes a flushing component 31, a synchronization component 32, a drainage baffle 33 and a flushing box 34. The flushing component 31 is connected to the support box 22 for flushing the defogger blades 1. The synchronization component 32 is respectively connected to the flushing component 31 and the drainage baffle 33. The drainage baffle 33 is connected to the support box 22. The flushing box 34 is relatively connected to the support box 22.

[0056] like Figure 4 and Figure 6As shown, the flushing assembly 31 includes a support rod 311, a flushing bracket 312 and a flushing nozzle 313. There are two vertical support rods 311, which are respectively located at both ends of the demisting blade 1 and are slidably connected to the support box 22. The width of the support rod 311 is greater than the diameter of the demisting port 223. The support box 22 is provided with a first sliding groove 224 for the support rod 311 to slide. The first sliding groove 224 is connected to the buffer chamber 222, and one end of the first sliding groove 224 is connected to the buffer chamber 222. One side of the cavity 222 is flush, and the other end is close to the center of the buffer cavity 222. The support rod 311 is connected to a smoke baffle 3111, which is used to prevent the exhaust gas from leaking to the outside through the first sliding groove 224. The horizontal smoke baffle 3111 is located below the top surface of the support box 22. One end of the smoke baffle 3111 is fixedly connected to the side wall of the support rod 311. The support box 22 is correspondingly provided with a second sliding groove 225 for the smoke baffle 3111 to slide horizontally, and the second sliding groove 225 is connected to the first sliding groove 224.

[0057] like Figure 4 As shown, the two ends of the horizontal flushing bracket 312 are fixedly connected to the opposite side walls of the two support rods 311, and a plurality of flushing nozzles 313 are provided. The plurality of flushing nozzles 313 are evenly spaced along the length direction of the flushing bracket 312, and the flushing nozzles 313 are fixedly connected to the bottom surface of the flushing bracket 312. When the support rod 311 moves to the end of the first sliding groove 224 close to the center of the placement hole 221, the position of the flushing nozzle 313 is the cleaning position. The flushing nozzle 313 at the cleaning position can clean multiple defogger blades 1.

[0058] like Figure 6 and Figure 7 As shown, the synchronization component 32 includes a synchronization baffle 321, a synchronization rack 322 and a synchronization gear 323. The two ends of the horizontal synchronization baffle 321 are fixedly connected to the bottom of the opposite side walls of the two support rods 311, and the bottom surface of the synchronization baffle 321 abuts against the bottom surface of the buffer chamber 222, so that when the flushing nozzle 313 moves to the cleaning position, the bottom surface of the synchronization baffle 321 covers the top surface of the liquid collecting pipe 241 and the side wall of the support rod 311 covers the defogger port 223.

[0059] like Figure 5 、 Figure 7 and Figure 8 As shown, two synchronization racks 322 are provided, and the two synchronization racks 322 are respectively connected to the side of the two support rods 311 away from the smoke baffle 3111, and one end of the synchronization rack 322 is fixedly connected to the bottom of the support rod 311, and two synchronization gears 323 are correspondingly provided. The two synchronization gears 323 are respectively located above the two synchronization racks 322 and meshed with the synchronization racks 322, and the support box body 22 is correspondingly provided with a first working chamber 227 for accommodating the synchronization racks 322 and the synchronization gears 323.

[0060] like Figure 4 、 Figure 5 and Figure 6 As shown, the buffer chamber 222 is provided with a plurality of drainage holes 226 on the side wall near the synchronous rack 322, and the plurality of drainage holes 226 are all close to the bottom surface of the buffer chamber 222. The support box body 22 is provided with a second working chamber 228, and the second working chamber 228 is connected to the plurality of drainage holes 226. The drainage baffle 33 is located in the second working chamber 228, and the drainage baffle 33 is connected to a connecting rod 331. The horizontal connecting rod 331 passes through the bottom of the drainage baffle 33 and is fixedly connected to the drainage baffle 33. The length direction of the connecting rod 331 is parallel to the length direction of the drainage baffle 33, and the two synchronous gears 323 are fixedly connected to the two ends of the connecting rod 331 respectively.

[0061] like Figure 5 、 Figure 6 and Figure 8 As shown, the support box body 22 is provided with a connecting groove 229 for the connecting rod 331 to rotate, and the interior of the connecting groove 229 is communicated with the interior of the first working chamber 227 and the interior of the second working chamber 228 respectively.

[0062] like Figure 6 As shown, the flushing box 34 is located on one side of the support box 22, and the flushing box 34 is connected to a drain pipe 341. One end of the drain pipe 341 is fixedly connected to the side wall of the support box 22, and the other end is fixedly connected to the top surface of the flushing box 34. The interior of the drain pipe 341 is connected to the interior of the second working chamber 228, so that the interior of the buffer chamber 222, the interior of the drain pipe 341, and the interior of the flushing box 34 are connected.

[0063] When the defogger blade 1 needs to be flushed, the flushing bracket 312 is moved so that the flushing nozzle 313 is in the flushing position. At this time, the synchronous baffle 321 moves to the top of the liquid collecting pipe 241 and covers the end of the liquid collecting pipe 241 connected to the support box 22, and the support rod 311 covers the defogger port 223. During cleaning, the flushing liquid is not easy to flow back into the defogger pipe 23 and the liquid collecting pipe 241.

[0064] When the synchronous baffle 321 moves, it drives the synchronous rack 322 to move, and the synchronous gear 323 engaged with the synchronous rack 322 rotates, driving the connecting rod 331 to rotate, so that the drainage baffle 33 rotates to a horizontal state, removing the cover of the drainage hole 226, connecting the flushing nozzle to the water tank through a pipe, opening the flushing nozzle 313 so that the flushing liquid is output to the surface of the defogger blade 1 through the flushing nozzle 313, and flushing the dirt remaining on the surface of the defogger blade 1, and the flushing liquid carrying impurities is transported to the inside of the flushing box 34 through the drainage hole 226, the second working chamber 228, and the drainage pipe 341, so that the staff can collect it easily, thereby improving the demisting effect of the defogger blade 1 and the demisting efficiency of the defogger.

[0065] After cleaning is completed, the flushing bracket 312 is moved in the opposite direction to reset the flushing bracket 312, and the synchronous baffle 321 moves away from the liquid collecting pipe 241, and the liquid collecting pipe 241 is connected to the inside of the buffer chamber 222. The synchronous rack 322 drives the synchronous gear 323 to rotate, so that the drainage baffle 33 rotates to a vertical state and covers the drainage hole 226, and the exhaust gas to be treated is introduced into the defogger pipe 23. Under the action of the smoke baffle 3111, the exhaust gas is not easily discharged to the outside through the first sliding groove 224.

[0066] like Figure 6 As shown, the filter assembly 4 includes a filter plate 41, a circulation pipe 42 and a drain pipe 43. The filter plate 41 is located inside the flushing box 34 and is clamped with the flushing box 34. A plurality of holes are provided on the filter plate 41 for filtering solid impurities carried in the flushing liquid. The circulation pipe 42 is located below the filter plate 41, and one end is fixedly connected to the flushing box 34. The drain pipe 43 is located above the filter plate 41, and one end of the drain pipe 43 is fixedly connected to the flushing box 34. The interior of the drain pipe 43 and the interior of the circulation pipe 42 are both connected to the interior of the flushing box 34; the circulation pipe 42 and the drain pipe 43 are fixedly connected to valves (not shown in the figure).

[0067] The use process of a mist eliminator is as follows:

[0068] When in use, the exhaust gas to be treated is introduced into the demister pipe 23, so that the exhaust gas passes through the channel formed between the multiple demister blades 1. Under the action of the intercepting part 12, the droplets carried in the exhaust gas are captured, thereby reducing the droplet content in the exhaust gas discharged from the gas outlet to the outside; as the droplets on the demister blades 1 gradually accumulate, after reaching a certain weight, the droplets fall into the buffer chamber 222 and flow into the liquid collecting box 24 through the collecting pipe 241, which is convenient for the staff to centrally handle and improve the demisting efficiency of the demister.

[0069] When the defogger blades 1 need to be cleaned, the flushing bracket 312 is moved so that the flushing nozzle 313 is in the flushing position, and the flushing nozzle 313 is turned on to clean the defogger blades 1. The flushing liquid carrying solid impurities falls into the buffer chamber 222. Since the collecting pipe 241 is covered by the synchronous baffle 321 and the defogger port 223 is covered by the support rod 311, the flushing liquid in the buffer chamber 222 is transported to the flushing box 34 through the drain hole 226 and the drain pipe 341. The solid impurities contained in the flushing liquid entering the flushing box 34 are filtered by the filter plate 41 and remain on the filter plate 41. The solid impurities can be removed by opening the valve on the drain pipe 43, and the filtered flushing liquid can be recycled by opening the valve on the circulation pipe 42, saving energy.

[0070] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A demister, characterized in that: The invention comprises a demisting assembly (2) and a flushing mechanism (3), wherein the demisting assembly (2) comprises a supporting box body (22) and a liquid collecting box (24), a side wall of the supporting box body (22) is provided with a demisting port (223), and a top surface is provided with a placement hole (221) for placing a demisting blade (1), and the demisting blade (1) comprises a mounting portion (11), an intercepting portion (12) and a guiding portion (13), one end of the intercepting portion (12) is fixedly connected to the mounting portion (11), and the other end is fixedly connected to the guiding portion (13), the connection parts of the intercepting portion (12) with the mounting portion (11) and the intercepting portion (12) are smoothly transitioned, the intercepting portion (12) is an arc-shaped plate structure, and the intercepting portion (12) and the guiding portion (13) both adopt the arc of the fastest curve; The demisting blades (1) are provided in plurality, and the plurality of demisting blades (1) are arranged at equal intervals in a direction perpendicular to the exhaust gas conveying direction, and are used to convey the exhaust gas into the interior of the supporting box (22) through the demisting port (223), and discharge the exhaust gas to the outside through the gaps between the plurality of demisting blades (1), and the plurality of demisting blades (1) are relatively fixedly connected to the supporting box (22); The flushing mechanism (3) comprises a flushing assembly (31) for flushing the demisting blade (1), the flushing assembly (31) being connected to the supporting box (22), the liquid collecting box (24) being located below the supporting box (22), the liquid collecting box (24) being connected to a liquid collecting pipe (241), one end of the liquid collecting pipe (241) being fixedly connected to the supporting box (22), and the other end being fixedly connected to the liquid collecting box (24), for communicating the supporting box (22) and the liquid collecting box (24); The flushing assembly (31) includes a flushing bracket (312) and a flushing nozzle (313). The flushing bracket (312) is located above the support box (22) and is slidably connected to the support box (22). The sliding direction of the flushing bracket (312) is perpendicular to the exhaust gas conveying direction. A plurality of flushing nozzles (313) are provided. The plurality of flushing nozzles (313) are arranged at equal intervals along the length direction of the flushing bracket (312). The plurality of flushing nozzles (313) are fixedly connected to the flushing bracket (312). The flushing assembly (31) further includes a support rod (311), a plurality of support rods (311) are provided, and the support rods (311) are symmetrically arranged at both ends of the flushing bracket (312), one end of the support rod (311) is fixedly connected to the flushing bracket (312), and the support box (22) is provided with a first sliding groove (224), and the other end of the support rod (311) passes through the first sliding groove (224) and extends into the interior of the support box (22), and is connected to the support box (22). The supporting box (22) is slidably connected, the supporting rod (311) is connected to a smoke shield (3111), the smoke shield (3111) is horizontally arranged below the top surface of the supporting box (22), one end of the smoke shield (3111) is fixedly connected to the side wall of the supporting rod (311), and the supporting box (22) is correspondingly provided with a second sliding groove (225) for the smoke shield (3111) to slide horizontally, and the second sliding groove (225) is communicated with the first sliding groove (224); The flushing mechanism (3) further comprises a synchronization component (32) and a drainage baffle (33); a plurality of drainage holes (226) are provided on the inner wall of the support box (22); the drainage holes (226) are close to the bottom of the support box (22); a buffer cavity (222) is provided inside the support box (22); the buffer cavity (222) is located below the placement hole (221) and is in communication with the placement hole (221); the buffer cavity (222) is in communication with the drainage holes (226); the drainage baffle (33) is in communication with the support box ( 22) are relatively rotatably connected, the support box (22) is provided with a second working chamber (228) for the rotation of the drainage baffle (33), the drainage hole (226) is communicated with the second working chamber (228), and the synchronization component (32) is respectively connected to the drainage baffle (33) and the flushing nozzle (313) relative to each other, so that when the flushing bracket (312) slides, the drainage baffle (33) rotates, so that the buffer chamber (222) is communicated with the second working chamber (228) through the drainage hole (226); The synchronization assembly (32) includes a synchronization baffle (321), a synchronization rack (322) and a synchronization gear (323). The two ends of the synchronization baffle (321) are respectively fixedly connected to the end of the support rod (311) away from the flushing bracket (312), and the length direction of the synchronization baffle (321) is parallel to the length direction of the flushing bracket (312). The synchronization baffle (321) is fixedly connected to the side close to the drainage hole (226) with a synchronization rack (322). The synchronization rack (322) is slidably connected to the support box (22). The drainage The baffle (33) is connected to a connecting rod (331), the connecting rod (331) passes through the drainage baffle (33) and is fixedly connected to the drainage baffle (33), the synchronous gear (323) is sleeved on both ends of the connecting rod (331) and is fixedly connected to the connecting rod (331), the synchronous gear (323) is located above the synchronous rack (322) and meshes with the synchronous rack (322), and the supporting box (22) is provided with a first working chamber (227) for allowing the synchronous rack (322) to slide and the synchronous gear (323) to rotate.

2. A demister according to claim 1, characterized in that: The intercepting portion (12) is connected to a protruding portion, and the protruding portion is fixedly connected to the side surface of the intercepting portion (12) for increasing the impact area.

3. A demister according to claim 2, characterized in that: The protruding portion is arranged at one end of the intercepting portion (12) close to the guiding portion (13), and the protruding portion is located on a side of the intercepting portion (12) away from the mounting portion (11).

4. A demister according to claim 3, characterized in that: The protruding portion is a protruding baffle (14), the length direction of the protruding baffle (14) is perpendicular to the conveying direction of the exhaust gas, one side of the protruding baffle (14) in the length direction is fixedly connected to the intercepting portion (12), and the space formed by the protruding baffle (14) and the intercepting portion (12) faces the air intake end.

5. The demister according to claim 1, characterized in that: The width of the support rod (311) is greater than the diameter of the demister port (223), and is used for enabling the support rod (311) to cover the demister port (223) when the flushing nozzle (313) moves to the flushing position.

6. A demister according to claim 5, characterized in that: The flushing mechanism (3) comprises a flushing box (34), the flushing box (34) being connected to a drain pipe (341), one end of the drain pipe (341) being fixedly connected to the flushing box (34), and the other end being fixedly connected to the support box (22), and the interior of one end of the drain pipe (341) close to the support box (22) being communicated with the interior of the second working chamber (228), and the flushing box (34) being connected to a filter assembly (4) for filtering cleaning liquid.

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