Environment dust removal device

Abstract

The utility model relates to the technical field of environmental dust removal, in particular to an environmental dust removal device. The equipment comprises a pretreatment mechanism and a filtering mechanism, an outlet of the pretreatment mechanism communicates with an inlet of the filtering mechanism, and waste gas enters the filtering mechanism through the pretreatment mechanism; the pretreatment mechanism comprises a flow guide pipe and a cooling structure; the cooling structure comprises a cooling plate and a cooling ring pipe; the cooling plate is arranged in the flow guide pipe; the cooling ring pipe is connected with the cooling plate; during operation, a cooling medium flows through the cooling ring pipe, so that the temperature of the cooling ring pipe and the cooling plate is reduced, and then waste gas passing through the flow guide pipe is cooled. When the environment dust removal device provided by the utility model is used, a cooling medium flows through the cooling ring pipe, so that the temperatures of the cooling ring pipe and the cooling plate are reduced, and then waste gas entering the filtering mechanism through the flow guide pipe is cooled. The problem that the filter element is easy to accelerate and lose efficacy in the high-temperature environment due to the fact that the temperature of part of waste gas generated in the high-temperature environment is high is solved.

Description

Technical Field

[0001] This utility model relates to the field of environmental dust removal technology, and in particular to an environmental dust removal device. Background Technology

[0002] Environmental dust removal devices refer to equipment that uses physical, chemical, or electrical methods to remove particulate matter and harmful gases from the air in order to protect the environment and human health. They mainly separate and remove particulate matter and harmful gases from the air through filtration, adsorption, electrostatic dust removal, etc. According to the dust removal method, existing environmental dust removal devices can be divided into mechanical, adsorption, and electrostatic dust removal types. Among them, mechanical dust removal devices mostly utilize the porosity of the filter element to trap particulate matter in the air on the filter element, thereby achieving the purpose of dust removal.

[0003] However, due to the high temperature of exhaust gas generated in some high-temperature environments, the filter element is prone to accelerated failure under high-temperature conditions. Utility Model Content

[0004] This invention provides an environmental dust removal device to solve the problem that the filter element is prone to accelerated failure in high-temperature environments due to the high temperature of the exhaust gas generated in some high-temperature environments.

[0005] To alleviate the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] An environmental dust removal device:

[0007] Includes pretreatment and filtration mechanisms;

[0008] The outlet of the pretreatment unit is connected to the inlet of the filtration unit, and the exhaust gas enters the filtration unit through the pretreatment unit.

[0009] The pretreatment mechanism includes a guide pipe and a cooling structure;

[0010] The cooling structure includes a cooling plate and a cooling ring pipe;

[0011] The cooling plate is arranged inside the guide pipe;

[0012] The cooling ring pipe is connected to the cooling plate;

[0013] During operation, the cooling medium flows through the cooling ring pipe to reduce the temperature of the cooling ring pipe and the cooling plate, thereby cooling the exhaust gas passing through the guide pipe.

[0014] Furthermore, the cooling plate includes a plate body, a driving tube, and a follower tube; one end of the driving tube and the follower tube are both connected to the plate body, and the other end of the driving tube and the follower tube are rotatably connected to the guide tube; one end of the cooling ring tube is connected to the driving tube, and the other end is connected to the follower tube; the cooling medium flows sequentially through the driving tube, the cooling ring tube, and the follower tube.

[0015] Furthermore, the cooling structure also includes an angle adjustment unit; the angle adjustment unit is installed on the guide pipe and is used to drive the cooling plate to rotate around the axis of the drive pipe, so as to change the angle between the plate and the axis of the guide pipe.

[0016] Furthermore, the cooling structure also includes a sensing element; the sensing element is installed in the guide pipe and electrically connected to the angle adjustment unit; the sensing element is used to detect the temperature of the exhaust gas in the guide pipe.

[0017] Furthermore, the cooling structure also includes multiple cooling plates; the multiple cooling plates are arranged along the length of the guide pipe to guide the exhaust gas to flow within the guide pipe.

[0018] Furthermore, the angle adjustment unit includes an angle adjustment motor; the housing of the angle adjustment motor is connected to the guide pipe, and its rotation axis is fitted with the drive pipe; the angle adjustment motor drives the cooling plate to rotate around the axis of the drive pipe.

[0019] Furthermore, it also includes a flushing structure; the flushing structure includes a spray manifold and a flushing nozzle; the flushing nozzle is connected to the outlet of the spray manifold and is located inside the guide pipe; the spray manifold sprays cleaning fluid onto the guide pipe, the cooling plate and the cooling ring pipe through the flushing nozzle, thereby removing impurities from the surfaces of the guide pipe, the cooling plate and the cooling ring pipe.

[0020] Furthermore, the flushing structure also includes a drain pipe; the drain pipe is connected to the guide pipe; the cleaning fluid in the guide pipe is discharged through the drain pipe.

[0021] Furthermore, the flushing structure also includes a switching valve; the switching valve is connected to the inlet of the spray manifold and electrically connected to the sensing element; when the temperature inside the guide pipe exceeds a threshold, the sensing element controls the switching valve to open, so that the spray manifold sprays cleaning fluid into the guide pipe through the flushing nozzle.

[0022] Furthermore, the guide pipe includes a pipe body, an air intake hood, and an exhaust hood; one end of the pipe body is connected to the air intake hood, and the other end is connected to the exhaust hood.

[0023] The beneficial effects of the environmental dust removal device in this utility model are analyzed as follows:

[0024] The device includes a pretreatment mechanism and a filtration mechanism; the outlet of the pretreatment mechanism is connected to the inlet of the filtration mechanism, and the exhaust gas enters the filtration mechanism through the pretreatment mechanism; the pretreatment mechanism includes a guide pipe and a cooling structure; the cooling structure includes a cooling plate and a cooling ring pipe; the cooling plate is arranged inside the guide pipe; the cooling ring pipe is connected to the cooling plate; during operation, the cooling medium flows through the cooling ring pipe to reduce the temperature of the cooling ring pipe and the cooling plate, thereby cooling the exhaust gas passing through the guide pipe.

[0025] When the environmental dust removal device provided by this utility model is in use, the cooling medium flows through the cooling ring pipe to reduce the temperature of the cooling ring pipe and the cooling plate, thereby cooling the exhaust gas that enters the filtration mechanism through the guide pipe, thus preventing the high-temperature exhaust gas from accelerating the aging and failure of the filter element in the filtration mechanism. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the pretreatment mechanism in the environmental dust removal device provided in this embodiment of the utility model;

[0028] Figure 2 Left view of the pretreatment mechanism in the environmental dust removal device provided in this embodiment of the utility model;

[0029] Figure 3 A front view of the pretreatment mechanism in the environmental dust removal device provided in this embodiment of the utility model;

[0030] Figure 4 AA cross-sectional view of the pretreatment mechanism in the environmental dust removal device provided in this embodiment of the utility model;

[0031] Figure 5 BB cross-sectional view of the pretreatment mechanism in the environmental dust removal device provided in this embodiment of the utility model;

[0032] Figure 6 An exploded three-dimensional structural diagram of the cooling plate and cooling ring pipe in the environmental dust removal device provided in this embodiment of the utility model;

[0033] Figure 7 This utility model provides a schematic diagram of the structure of the synchronization component in the environmental dust removal device.

[0034] icon:

[0035] 001. Pretreatment mechanism; 100. Guide pipe; 110. Pipe body; 120. Air inlet hood; 130. Exhaust hood; 140. Reinforcing frame; 150. Rotary bearing; 200. Cooling structure; 210. Cooling plate; 211. Plate body; 212. Drive pipe; 213. Follower pipe; 220. Cooling ring pipe; 230. Angle adjustment unit; 231. Angle adjustment motor; 232. Synchronization component; 201. Swing arm; 202. Synchronization link; 240. Sensing element; 250. Liquid supply unit; 251. Liquid supply manifold; 252. Liquid supply bracket; 253. Liquid supply hose; 260. Recovery unit; 261. Recovery collection pipe; 262. Recovery bracket; 263. Recovery hose; 300. Flushing structure; 310. Spray manifold; 320. Flushing nozzle; 330. Drain pipe; 340. Switch valve. Detailed Implementation

[0036] Because the exhaust gas generated in some high-temperature environments is at a high temperature, the filter element is prone to accelerated failure under high-temperature conditions.

[0037] In view of this, this solution provides an environmental dust removal device, including a pretreatment mechanism 001 and a filtration mechanism.

[0038] The following combination Figures 1-7 The structure and shape of the environmental dust removal device provided in this embodiment will be described in detail:

[0039] The outlet of the pretreatment unit 001 is connected to the inlet of the filtration unit, and the exhaust gas enters the filtration unit through the pretreatment unit 001. The pretreatment unit 001 includes a guide pipe 100 and a cooling structure 200. The cooling structure 200 includes a cooling plate 210 and a cooling ring pipe 220. The cooling plate 210 is arranged inside the guide pipe 100. The cooling ring pipe 220 is connected to the cooling plate 210. During operation, the cooling medium flows through the cooling ring pipe 220 to reduce the temperature of the cooling ring pipe 220 and the cooling plate 210, thereby cooling the exhaust gas passing through the guide pipe 100.

[0040] To filter exhaust gas, the filtration mechanism includes a support cylinder, a filter element, and a fan.

[0041] Specifically, the filter element is installed inside the carrier cylinder, and the inlet of the fan is connected to the outlet of the carrier cylinder. The fan drives the exhaust gas into the pretreatment mechanism 001. After being cooled, the exhaust gas is output to the environment by the fan through the carrier cylinder. During this process, impurities in the exhaust gas are filtered and separated by the filter element.

[0042] In this embodiment, the cooling medium flows through the cooling ring pipe 220 to reduce the temperature of the cooling ring pipe 220 and the cooling plate 210, thereby cooling the exhaust gas entering the filtration mechanism through the guide pipe 100, thus preventing the high-temperature exhaust gas from accelerating the aging and failure of the filter element in the filtration mechanism.

[0043] In addition, exhaust gases in high-temperature environments often contain evaporated gases, such as water vapor and organic waste gases. Water vapor entering the filter structure can cause the filter element to become damp. After becoming damp, the filter element will not only expand, affecting the filtration efficiency, but it is also prone to corrosion or mold growth. Organic waste gases entering the filter structure will condense inside the filter element, causing blockage. Evaporated gases in the exhaust gas condense and gather after contacting the cooling ring pipe 220 and cooling plate 210, thereby reducing the amount of water vapor and organic waste gases in the exhaust gas entering the filter mechanism through the guide pipe 100, avoiding the above problems, and extending the effective service life of the filter element in the filter structure.

[0044] More details regarding the shape and structure of the cooling structure 200:

[0045] The cooling plate 210 includes a plate body 211, a drive tube 212, and a follower tube 213; one end of the drive tube 212 and the follower tube 213 are both connected to the plate body 211, and the other end is rotatably connected to the guide tube 100; one end of the cooling ring tube 220 is connected to the drive tube 212, and the other end is connected to the follower tube 213; the cooling medium flows through the drive tube 212, the cooling ring tube 220, and the follower tube 213 in sequence.

[0046] To improve the ease of installation of the cooling plate 210:

[0047] The drive tube 212 includes a drive adapter tube and a drive insertion tube; the drive adapter tube is inserted into the plate 211; the drive insertion tube is screwed onto the drive adapter tube and inserted into the guide tube 100, and is slidably and rotatably connected to the guide tube 100; the follower tube 213 includes a follower adapter tube and a follower insertion tube; the follower adapter tube is inserted into the plate 211; the follower insertion tube is screwed onto the follower adapter tube and inserted into the guide tube 100, and is slidably and rotatably connected to the guide tube 100. When the cooling plate 210 is installed, the drive adapter tube and the follower adapter tube are driven to a set position inside the guide tube 100 by the plate 211, and then the drive insertion tube and the follower insertion tube are respectively inserted into the drive adapter tube and the follower adapter tube, thereby fixing the cooling plate 210.

[0048] To ensure that exhaust gas flows smoothly through cooling plate 210:

[0049] The cooling ring pipe 220 is positioned on the side of the cooling plate 210 opposite to the inlet of the guide pipe 100, so that the exhaust gas flows in the guide pipe 100 under the guidance of the plate 211. During this process, the cooling ring pipe 220 is on the leeward side of the cooling plate 210, thereby reducing the obstruction of the cooling ring pipe 220 during the process of the exhaust gas passing through the cooling plate 210.

[0050] In order to reduce the impact on the ventilation volume of the environmental dust removal device while ensuring the pretreatment effect, the cooling structure 200 also includes an angle adjustment unit 230.

[0051] Specifically, the angle adjustment unit 230 is installed on the guide pipe 100 and is used to drive the cooling plate 210 to rotate around the axis of the drive pipe 212, so as to change the angle between the plate 211 and the axis of the guide pipe 100.

[0052] In order for the angle adjustment unit 230 to control the tilt angle of the cooling plate 210 according to the temperature, the cooling structure 200 also includes a sensing element 240, which may include, but is not limited to, a temperature sensor and a temperature control switch.

[0053] Specifically, the sensing element 240 is installed in the guide pipe 100 and is electrically connected to the angle adjustment unit 230; the sensing element 240 is used to detect the temperature of the exhaust gas in the guide pipe 100.

[0054] To further improve the treatment effect of the pretreatment mechanism 001 on the exhaust gas, the cooling structure 200 also includes multiple cooling plates 210.

[0055] Specifically, multiple cooling plates 210 are arranged along the length of the guide pipe 100 to guide the exhaust gas to flow within the guide pipe 100.

[0056] In order to drive multiple cooling plates 210 to rotate synchronously, the angle adjustment unit 230 includes an angle adjustment motor 231.

[0057] Specifically, the housing of the angle adjustment motor 231 is connected to the guide tube 100, and its rotating shaft is fitted with the drive tube 212; the angle adjustment motor 231 drives the cooling plate 210 to rotate around the axis of the drive tube 212.

[0058] In order to achieve synchronous rotation of multiple cooling plates 210 driven by a single angle-adjusting motor 231, the angle-adjusting unit 230 also includes a synchronization component 232.

[0059] Specifically, the synchronization component 232 includes multiple swing arms 201 and multiple synchronization links 202. One end of the swing arm 201 is fitted with the drive tube 212, and the other end is rotatably connected to the synchronization link 202. The angle adjustment motor 231 drives the swing arm 201 to swing through the cooling plate 210. The multiple swing arms 201 swing synchronously with the cooperation of the multiple synchronization links 202, so that the multiple cooling plates 210 rotate synchronously.

[0060] To enable centralized injection and recovery of the cooling medium, the cooling structure 200 also includes a liquid supply unit 250 and a recovery unit 260.

[0061] Specifically, the liquid supply unit 250 includes a liquid supply manifold 251, a liquid supply bracket 252, and multiple liquid supply hoses 253. One end of the liquid supply manifold 251 is connected to an external pipeline, and the other end is fitted with a liquid supply end cap. The liquid supply bracket 252 is fitted with the liquid supply manifold 251 and connected to the guide pipe 100 to fix the liquid supply manifold 251 to the guide pipe 100. One end of the liquid supply hose 253 is connected to the liquid supply manifold 251, and the other end is connected to the drive pipe 212. During the rotation of the cooling plate 210, the liquid supply hose 253 compensates for the displacement between the drive pipe 212 and the liquid supply manifold 251 through deformation.

[0062] The recycling unit 260 includes a collection pipe 261, a recycling bracket 262, and multiple recycling hoses 263. One end of the collection pipe 261 is connected to an external pipeline, and the other end is fitted with a recycling end cap. The recycling bracket 262 is fitted to the collection pipe 261 and connected to the guide pipe 100 to fix the collection pipe 261 to the guide pipe 100. One end of the recycling hose 263 is connected to the collection pipe 261, and the other end is connected to the follower pipe 213. During the rotation of the cooling plate 210, the recycling hose 263 compensates for the displacement between the follower pipe 213 and the collection pipe 261 through deformation.

[0063] In this embodiment, the sensing element 240 detects the temperature of the exhaust gas in the guide pipe 100, and then determines the angle of the cooling plate 210 based on the exhaust gas temperature. When the exhaust gas temperature is lower than the cooling range, the angle adjustment unit 230 drives the plate 211 to rotate through the drive pipe 212 until multiple plates 211 are stacked on top of each other. At this time, the projected area of ​​the cooling plate 210 in the length direction of the guide pipe 100 is the smallest, thereby reducing the impact on the exhaust gas flow of the environmental dust removal device in the non-cooled environment.

[0064] When the exhaust gas temperature is within the cooling range, the angle adjustment unit 230 drives multiple cooling plates 210 to rotate. During this process, the angle between the cooling plates 210 and the guide pipe 100 increases as the exhaust gas temperature rises, thereby increasing the contact area between the plate 211 and the exhaust gas passing through the guide pipe 100. At the same time, the cooling medium enters the cooling ring pipe 220 through the drive pipe 212, and the cooling medium in the cooling ring pipe 220 is output through the follower pipe 213. During this process, the temperature of the cooling ring pipe 220 and the cooling plates 210 decreases, thereby cooling the exhaust gas.

[0065] When the exhaust gas temperature exceeds the cooling range, the angle adjustment unit 230 drives multiple cooling plates 210 to rotate until the plate 211 is in contact with the inner wall of the guide pipe 100. At this time, the multiple plates 211 are staggered along the length of the guide pipe 100, so that the guide pipe 100 forms a baffle channel with the plates 211 as intervals. The exhaust gas flows in the baffle channel under the guidance of the plates 211, thereby extending the exhaust gas's journey in the guide pipe 100 and increasing the heat exchange between the exhaust gas and the cooling plate 210.

[0066] During the above cooling operation, the exhaust gas slows down due to the obstruction of multiple cooling plates 210 in the guide pipe 100. The evaporated gas or droplets in the exhaust gas separate under inertia and condense and gather on the surface of the plate 211. The droplets gathered on the surface of the plate 211 fall into the guide pipe 100, further avoiding the impact of the evaporated gas in the exhaust gas on the filter element.

[0067] A flushing structure 300 is also included to clean impurities from the guide pipe 100, cooling plate 210 and cooling ring pipe 220.

[0068] Specifically, the rinsing structure 300 includes a spray manifold 310 and a rinsing nozzle 320; the rinsing nozzle 320 is connected to the outlet of the spray manifold 310 and is located inside the guide pipe 100; the spray manifold 310 sprays cleaning fluid through the rinsing nozzle 320 into the guide pipe 100, the cooling plate 210 and the cooling ring pipe 220, thereby removing impurities from the surfaces of the guide pipe 100, the cooling plate 210 and the cooling ring pipe 220.

[0069] In order to drain the condensate and cleaning fluid accumulated in the drain pipe 100, the flushing structure 300 also includes a drain pipe 330.

[0070] Specifically, the drain pipe 330 is connected to the guide pipe 100; the cleaning fluid in the guide pipe 100 is discharged through the drain pipe 330.

[0071] To prevent cleaning fluid from entering the filter during the cleaning process:

[0072] A shut-off valve is installed between the pretreatment mechanism 001 and the filtration mechanism. Before the rinsing structure 300 performs the rinsing operation, the shut-off valve disconnects the pretreatment mechanism 001 from the filtration mechanism. After the rinsing structure 300 finishes rinsing, the shut-off valve connects the pretreatment mechanism 001 to the filtration mechanism.

[0073] In this embodiment, the cleaning fluid is sprayed from the rinsing nozzle 320 onto the surface of the cooling plate 210 and the cooling ring pipe 220 through the spray manifold 310. Impurities on the surface of the cooling plate 210 and the cooling ring pipe 220 are removed by the cleaning fluid. The cooling plate 210 and the cooling ring pipe 220 reflect the cleaning fluid onto the surface of the guide pipe 100. Impurities on the surface of the guide pipe 100 are removed by the cleaning fluid. The condensate and cleaning fluid accumulated in the guide pipe 100 are discharged through the drain pipe 330.

[0074] The cooling structure 200 and the flushing structure 300 work together to further improve the flushing effect. Specifically:

[0075] Before the flushing structure 300 operates, the heating medium enters the cooling ring pipe 220 through the drive pipe 212. The heating medium in the cooling ring pipe 220 is output through the follower pipe 213. During this process, the impurities adhering to the cooling ring pipe 220, cooling plate 210, and guide pipe 100 are liquefied and peeled off by heat. Then, the cleaning fluid is sprayed from the flushing nozzle 320 onto the surface of the cooling plate 210 and cooling ring pipe 220 through the spray manifold 310. During this process, the angle adjustment unit 230 drives the cooling plate 210 to rotate, and the cooling plate 210 drives the cooling ring pipe 220 to rotate. During this process, the cleaning fluid output by the flushing nozzle 320 flushes various parts of the cooling plate 210 and cooling ring pipe 220. At the same time, the rotating cooling plate 210 reflects the cleaning fluid to the inner wall of the guide pipe 100 over a larger area, so that the impurities on the inner wall of the guide pipe 100 are peeled off.

[0076] In order to extinguish the ignition point in the pretreatment mechanism 001 in a timely manner, the flushing structure 300 also includes a switching valve 340.

[0077] Specifically, the switch valve 340 is connected to the inlet of the spray manifold 310 and is electrically connected to the sensing element 240; when the temperature inside the guide pipe 100 exceeds the threshold, the sensing element 240 controls the switch valve 340 to open, so that the spray manifold 310 sprays cleaning fluid into the guide pipe 100 through the flushing nozzle 320.

[0078] In this embodiment, since the exhaust gas easily contains organic gases, the organic gases will condense and accumulate in the pretreatment mechanism 001 to form oil stains. The oil stains are prone to combustion at high temperatures. When the temperature in the guide pipe 100 exceeds the threshold, the sensing element 240 controls the switch valve 340 to open, so that the spray manifold 310 sprays cleaning liquid into the guide pipe 100 through the flushing nozzle 320, thereby extinguishing the ignition point of the pretreatment mechanism 001.

[0079] More details regarding the shape and structure of the guide tube 100:

[0080] The guide pipe 100 includes a pipe body 110, an air intake shroud 120, and an exhaust shroud 130; one end of the pipe body 110 is connected to the air intake shroud 120, and the other end is connected to the exhaust shroud 130.

[0081] To improve the structural strength of the guide tube 100, the guide tube 100 also includes a reinforcing frame 140 and a rotary bearing 150.

[0082] Multiple bearing holes are provided on the reinforcing frame 140; each slewing bearing 150 is inserted into the corresponding bearing hole with an interference fit, and is also fitted with the corresponding drive tube 212 and follower tube 213 with an interference fit; the reinforcing frame 140 is fitted with the guide tube 100; the stress and gravity generated during the operation of the cooling structure 200 are transmitted to the reinforcing frame 140 through the slewing bearing 150, and at the same time, the reinforcing frame 140 forms a grid structure on the surface of the tube body 110, thereby strengthening the guide tube 100's ability to withstand external impact forces.

[0083] In this embodiment, the air intake hood 120 connects the external pipeline to the inlet of the pipe body 110, while the exhaust hood 130 connects the filter mechanism to the outlet of the pipe body 110. At the same time, the air intake hood 120 and the exhaust hood 130 form a stepped structure at both ends of the pipe body 110, thereby blocking the condensate accumulated in the guide pipe 100 by the stepped structure, preventing the condensate from entering the external pipeline and the filter mechanism.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An environmental dust removal device, characterized in that: comprising a pretreatment mechanism (001) and a filtering mechanism; the outlet of the pretreatment mechanism (001) is communicated with the inlet of the filtering mechanism, and waste gas enters the filtering mechanism through the pretreatment mechanism (001); the pretreatment mechanism (001) comprises a flow guide pipe (100) and a cooling structure (200); the cooling structure (200) comprises a cooling plate (210) and a cooling ring pipe (220); the cooling plate (210) is arranged in the flow guide pipe (100); the cooling ring pipe (220) is connected with the cooling plate (210); during operation, cooling medium flows through the cooling ring pipe (220) to reduce the temperature of the cooling ring pipe (220) and the cooling plate (210), thereby cooling the waste gas passing through the flow guide pipe (100).

2. The environmental dust removal device according to claim 1, characterized in that: the cooling plate (210) comprises a plate body (211), a driving pipe (212) and a following pipe (213); one end of the driving pipe (212) and the following pipe (213) is connected with the plate body (211), and the other end is rotationally connected with the flow guide pipe (100); one end of the cooling ring pipe (220) is communicated with the driving pipe (212), and the other end is communicated with the following pipe (213); the cooling medium flows through the driving pipe (212), the cooling ring pipe (220) and the following pipe (213) in sequence.

3. The environmental dust removal device according to claim 2, characterized in that: the cooling structure (200) further comprises an angle adjusting unit (230); the angle adjusting unit (230) is installed on the flow guide pipe (100) and drives the cooling plate (210) to rotate around the axis of the driving pipe (212) to change the included angle between the plate body (211) and the axis of the flow guide pipe (100).

4. The environmental dust removal device according to claim 3, characterized in that: the cooling structure (200) further comprises a sensing element (240); the sensing element (240) is installed on the flow guide pipe (100) and is electrically connected with the angle adjusting unit (230); the sensing element (240) is used for detecting the temperature of the waste gas in the flow guide pipe (100).

5. The environmental dust removal device according to claim 4, characterized in that: the cooling structure (200) further comprises a plurality of cooling plates (210); the plurality of cooling plates (210) are arranged along the length direction of the flow guide pipe (100) and are used for guiding the flow of waste gas in the flow guide pipe (100).

6. The environmental dust removal device according to claim 5, characterized in that: the angle adjusting unit (230) comprises an angle adjusting motor (231); the housing of the angle adjusting motor (231) is connected with the flow guide pipe (100), and the rotating shaft of the angle adjusting motor (231) is sleeved with the driving pipe (212); the angle adjusting motor (231) drives the cooling plate (210) to rotate around the axis of the driving pipe (212). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 7. The environmental dust removal device according to claim 6, further comprising a flushing structure (300); The flushing structure (300) comprises a spray header (310) and a flushing nozzle (320); The flushing nozzle (320) is in communication with the outlet of the spray header (310) and is located in the flow guide pipe (100); The spray header (310) sprays cleaning liquid to the flow guide pipe (100), the cooling plate (210) and the cooling ring pipe (220) through the flushing nozzle (320), thereby stripping the impurities on the surface of the flow guide pipe (100), the cooling plate (210) and the cooling ring pipe (220).

8. The environmental dust removal device according to claim 7, further comprising a drain pipe (330); The drain pipe (330) is in communication with the flow guide pipe (100); The cleaning liquid in the flow guide pipe (100) is discharged through the drain pipe (330).

9. The environmental dust removal device according to claim 8, further comprising a switch valve (340); The switch valve (340) is in communication with the inlet of the spray header (310) and is electrically connected with the sensing element (240); When the temperature in the flow guide pipe (100) exceeds a threshold value, the sensing element (240) controls the switch valve (340) to open, so that the spray header (310) sprays cleaning liquid into the flow guide pipe (100) through the flushing nozzle (320).

10. The environmental dust removal device according to claim 9, wherein the flow guide pipe (100) comprises a pipe body (110), an air inlet cover (120) and an air outlet cover (130); One end of the pipe body (110) is in communication with the air inlet cover (120), and the other end is in communication with the air outlet cover (130). ​ ​ ​ ​

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