Waste heat recycling device for dust-containing high-temperature waste gas treatment

Abstract

The utility model discloses a waste heat recycling device for dust-containing high-temperature waste gas treatment. The waste heat recycling device comprises a fixing frame, a gas collecting barrel, a fixing plate, a heat exchange barrel, a cleaning mechanism and a filtering mechanism, a gas collecting barrel is mounted on the fixing frame, a gas inlet is formed in one end of the gas collecting barrel, a drain outlet I is formed in the bottom of the gas collecting barrel, the filtering mechanism is mounted at one end of the gas collecting barrel, a gas pipe is arranged between the gas collecting barrel and the filtering mechanism, and the gas collecting barrel is communicated with the filtering mechanism through the gas pipe; sliding grooves I are formed in the two sides in the gas collecting barrel; fixing plates are installed at the two ends in the gas collecting barrel, the heat exchange barrel is installed in the gas collecting barrel through the fixing plates, a water inlet is formed in one end of the heat exchange barrel, and a water outlet is formed in the other end; and the cleaning mechanism is mounted in the gas collecting barrel. The inner wall of the gas collecting barrel and the outer wall of the heat exchange barrel are cleaned through the cleaning mechanism, and the problems that in the long-term use process, due to solid particle attachment, a channel is narrowed, and the heat exchange efficiency is reduced are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste heat recovery, and in particular relates to a waste heat recovery and utilization device for treating dust-containing high-temperature waste gas. Background Art

[0002] At present, the existing waste heat recovery device has a problem that when exhaust gas enters the device for heat exchange, solid particles in the exhaust gas will adhere to the inner wall of the heat exchange device. Over time, the channel for exhaust gas flow will gradually narrow, and the heat exchange speed between the exhaust gas and the device will slow down and the efficiency will decrease.

[0003] After searching: Prior art announcement number: CN221036974U A waste heat recovery device for exhaust gas includes a box body, a liquid inlet is fixedly installed on the top of the box body, a liquid outlet is fixedly installed on the bottom of the box body, and an air inlet and an air outlet are fixedly installed on both sides of the box body, the liquid inlet, liquid outlet, air inlet, and air outlet all pass through the box body and extend into the interior of the box body; the end of the liquid inlet is rotatably connected to a water distributor, and a plurality of heat exchange tubes are evenly fixedly connected downwardly to the bottom of the water distributor, the bottom of the heat exchange tube is fixedly connected to a water collecting pipe, the bottom of the water collecting pipe is fixedly connected to a liquid outlet pipe, the end of the liquid outlet pipe is rotatably connected to the liquid outlet, and the outer periphery of the liquid outlet pipe is fixedly connected to a rotating assembly for increasing the contact area between the heat exchange tube and the high-temperature gas; when the high-temperature exhaust gas enters the box body for heat exchange in the prior art, the solid particles in the exhaust gas will adhere to the inner wall of the box body and the wall of the heat exchange tube. Over time, the channel for the exhaust gas flow gradually narrows, the heat exchange speed between the exhaust gas and the heat exchange tube slows down, and the efficiency decreases.

[0004] Further search: Prior art announcement number: CN221898303U A high-temperature exhaust gas waste heat recovery device, including a base, a support frame, a storage barrel, a closing cover, an air inlet pipe and a first air outlet pipe, etc.; the upper side of the base is connected to the support frame, the support frame is connected to the storage barrel, the upper side of the storage barrel is installed with a closing cover, the upper left side of the storage barrel is connected to the air inlet pipe, and the lower right side of the storage barrel is connected to the first air outlet pipe; when the high-temperature exhaust gas in the prior art enters the storage barrel for heat exchange, the solid particles in the exhaust gas will adhere to the inner wall of the storage barrel and the inner wall of the heat conduction pipe. Over time, the channel for the exhaust gas flow will gradually narrow, and the heat exchange speed between the exhaust gas and the cold water in the storage box will slow down and the efficiency will decrease. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a waste heat recovery and utilization device for treating dust-containing high-temperature exhaust gas. Through the cleaning mechanism, the inner wall of the gas collecting barrel and the outer wall of the heat exchange tube are cleaned, effectively solving the problems of channel narrowing and reduced heat exchange efficiency caused by the adhesion of solid particles during long-term use.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A waste heat recovery and utilization device for treating dust-containing high-temperature exhaust gas, comprising a fixed frame, an air collecting barrel, a fixed plate, a heat exchange barrel, a cleaning mechanism, and a filtering mechanism; an air collecting barrel is installed on the fixed frame, an air inlet is provided at one end of the air collecting barrel, a sewage outlet I is provided at the bottom of the air collecting barrel, the filtering mechanism is installed at one end of the air collecting barrel, an air pipe is provided between the air collecting barrel and the filtering mechanism, and the air collecting barrel and the filtering mechanism are connected to each other through the air pipe; sliding grooves I are provided on both sides of the air collecting barrel; fixed plates are installed at both ends of the air collecting barrel, the heat exchange barrel is installed in the air collecting barrel through the fixed plates, a water inlet is provided at one end of the heat exchange barrel, and a water outlet is provided at the other end; the cleaning mechanism is installed in the air collecting barrel.

[0008] The cleaning mechanism includes a motor I, a screw I, a motor II, a telescopic rod, a sliding rod I, a sliding frame, an inner tooth, a gear I, a scraper I, a scraper II, a scraper III, and a gear II; the screw I and the sliding rod I are respectively located in the sliding groove I on both sides of the gas collecting barrel, the screw I is rotatably connected to the gas collecting barrel, and the sliding rod I is fixedly connected to the gas collecting barrel; the motor I is installed at one end of the screw I, and the output shaft of the motor I is fixedly connected to the screw I; the sliding frame is slidably installed in the gas collecting barrel, the sliding frame is threadedly connected to the screw I, and is slidably connected to the sliding rod I; the inner tooth and the gear I are rotatably installed on one side of the sliding frame, the gear II is located between the inner tooth and the gear I, the gear II is meshed with the inner tooth and the gear I, and a telescopic rod is installed on one side of the gear II, the telescopic end of the telescopic rod passes through the gas collecting barrel, the fixed plate, the sliding frame and is fixedly connected to the gear II, the motor Machine II is installed on one side of the telescopic rod, and the output shaft of motor II is fixedly connected to the telescopic rod; the scraper I is fixedly connected to the inner gear, and the scraper II is fixedly connected to the gear I. Both scraper I and scraper II are annular, and the cleaning end of scraper I fits in with the inner wall of the gas collecting barrel, and the cleaning end of scraper II fits in with the outer wall of the heat exchange barrel. A scraper III is provided between scraper I and scraper II, and scraper III is fixedly connected to the sliding frame. The two sides of scraper III fit in with scraper I and scraper II respectively; sealing ring I is located on one side of the inner gear ring end and is fixedly installed on the sliding frame, and sealing ring II is located on one side of the gear ring end of gear I and is fixedly installed on the sliding frame. A protective shell is provided on the outside of gear II, and the protective shell is rotatably connected to the telescopic rod, and the protective shell is fixedly connected to sealing ring I and sealing ring II. The protective shell, sealing ring I and sealing ring II are provided with notches at the meshing position of gear II, inner gear and gear I.

[0009] The filtering mechanism includes a filter plate, a filter box, a dirt collecting box, a motor III, a screw II, a sliding rod II, an electric push rod, a filtering area, and a cleaning area; the filter box is installed on a fixed frame, the filter box is connected to the air collecting barrel through an air pipe, an air outlet is provided at one end of the filter box, a dirt collecting box is provided on one side of the filter box, the dirt collecting box is connected to the filter box, and a sewage outlet II is provided at the bottom of the dirt collecting box; a plurality of sliding grooves II are provided in the filter box, partitions are provided on both sides of the sliding grooves II, the partitions are fixedly connected to the filter box, and the filter box is divided into a filtering area and a cleaning area by the partitions; the air outlet is located at one end of the filtering area, and the dirt collecting box is located on one side of the cleaning area; the filter plate is provided with a plurality of sliding grooves, and is slidably installed in the corresponding sliding grooves Ⅱ, screw Ⅱ is located on one side of the filter plate, screw Ⅱ is rotatably connected to the filter box and is threadedly connected to the filter plate, motor Ⅲ is installed on the top of the filter box, the output shaft of motor Ⅲ is fixedly connected to screw Ⅱ, sliding rod Ⅱ is opposite to screw Ⅱ, located on one side of the filter plate, and is slidably connected to the filter plate, sliding rod Ⅱ is fixedly connected to the filter box; there are several scrapers Ⅳ, which are located in the cleaning area at the bottom of the partition, scraper Ⅳ is slidably installed in the filter box and is located on one side of the sliding groove Ⅱ, cleans the filter plate entering the cleaning area, and pushes the cleaned solid particles into the dirt collecting box, an electric push rod is installed on one side of the filter box, the telescopic end of the electric push rod is slidably connected to the filter box, and is fixedly connected to the scraper Ⅳ.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1) Motor I drives screw I to rotate, causing the sliding frame to move along sliding rod I in the gas collecting barrel. Scrapers I and II move inside the gas collecting barrel to clean the gas, while pushing solid particles into drain port I. This cleans the inner wall of the gas collecting barrel and the outer wall of the heat exchanger, effectively solving the problem of channel narrowing and reduced heat exchange efficiency caused by solid particle adhesion during long-term use.

[0012] 2) When scrapers I and II rotate, they contact scraper III, which cleans the solid particles attached to scrapers I and II. Scraper III cleans the solid particles attached to scrapers I and II, maintaining the cleaning effect of scrapers I and II, and ensuring the cleaning effect of scrapers I and II.

[0013] 3) Sealing ring I is located on one side of the inner gear ring end and fixedly mounted to the sliding frame, while sealing ring II is located on one side of the gear ring end of gear I and fixedly mounted to the sliding frame. A protective shell is provided on the outside of gear II. Notches are provided on the protective shell, sealing ring I, and sealing ring II at the meshing points between gear II, the inner gear, and gear I. The protective shell, sealing ring I, sealing ring II, scraper I, scraper II, and sliding frame seal and protect the inner gear, gear I, and gear II to prevent solid particles in the exhaust gas from accumulating on the inner gear, gear I, and gear II, thereby affecting the transmission efficiency between the inner gear, gear I, and gear II.

[0014] 4) When the filter plates in the filtration area need to be cleaned, motor III rotates screw II to first move the filter plates in the cleaning area to the filtration area, and then the filter plates that originally needed to be cleaned in the filtration area are moved to the cleaning area; then, the electric push rod pushes scraper IV to slide in the filter box to clean the filter plates entering the cleaning area, and pushes the cleaned solid particles into the sewage collection box, and finally the solid particles are discharged from the sewage outlet II of the sewage collection box; thus, the continuous operation of filtration and cleaning is realized to ensure the continuous and stable filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 This is a schematic structural diagram of a waste heat recovery and utilization device for treating dust-laden high-temperature waste gas in the utility model;

[0016] Attachment Figure 2 It is attached Figure 1 Schematic diagram of the internal structure of the gas collecting barrel;

[0017] Attachment Figure 3 It is attached Figure 1 Schematic diagram of the cleaning mechanism structure;

[0018] Attachment Figure 4 It is attached Figure 3 Schematic diagram of the position of middle gear I;

[0019] Attachment Figure 5 It is attached Figure 3 Schematic diagram of the position of middle gear II;

[0020] Attachment Figure 6 It is attached Figure 4 Schematic diagram of the structure of the middle sealing ring I;

[0021] Attachment Figure 7 It is attached Figure 1 Schematic diagram of the structure of the cleaning agency Figure 1 ;

[0022] Attachment Figure 8 It is attached Figure 1 Schematic diagram of the structure of the cleaning agency Figure 2 ;

[0023] Attachment Figure 9 It is attached Figure 8 Schematic diagram of the installation effect of the middle filter plate;

[0024] Attachment Figure 10 This is a schematic diagram of the appearance of a waste heat recovery and utilization device for treating dust-laden high-temperature exhaust gas in the utility model;

[0025] In the figure: 1. Fixed frame; 101. Gas collecting barrel; 1011. Air inlet; 1012. Air pipe; 1013. Drain outlet I; 1014. Fixed plate; 1015. Sliding groove I; 102. Heat exchange barrel; 1021. Water inlet; 1022. Water outlet; 2. Cleaning mechanism; 21. Motor I; 22. Lead screw I; 23. Motor II; 24. Telescopic rod; 25. Sliding rod I; 26. Sliding frame; 27. Internal gear; 28. Gear I; 29. Scraper I; 21 0. Scraper II; 211. Scraper III; 212. Gear II; 213. Protective shell; 214. Sealing ring I; 215. Sealing ring II; 3. Filter mechanism; 31. Air outlet; 32. Filter plate; 33. Filter box; 34. Sewage collecting box; 35. Sewage outlet II; 36. Slide groove II; 37. Partition; 38. Motor III; 39. Screw II; 310. Slide rod II; 311. Electric push rod; 312. Scraper IV; 313. Filtering area; 314. Cleaning area. DETAILED DESCRIPTION

[0026] To facilitate understanding by those skilled in the art, Figure 1-10 , the technical solution of the utility model is further described in detail.

[0027] A waste heat recovery and utilization device for treating dust-containing high-temperature exhaust gas, comprising a fixed frame 1, an air collecting barrel 101, a fixed plate 1014, a heat exchange barrel 102, a cleaning mechanism 2, and a filtering mechanism 3; the air collecting barrel 101 is installed on the fixed frame 1, an air inlet 1011 is provided at one end of the air collecting barrel 101, a sewage outlet Ⅰ 1013 is provided at the bottom of the air collecting barrel 101, the filtering mechanism 3 is installed at one end of the air collecting barrel 101, an air pipe 1012 is provided between the air collecting barrel 101 and the filtering mechanism 3, and the air collecting barrel 101 and the filtering mechanism 3 are connected to each other through the air pipe 1012; sliding grooves Ⅰ 1015 are provided on both sides of the air collecting barrel 101; fixed plates 1014 are installed at both ends of the air collecting barrel 101, the heat exchange barrel 102 is installed in the air collecting barrel 101 through the fixed plate 1014, one end of the heat exchange barrel 102 is provided with a water inlet 1021, and the other end is provided with a water outlet 1022; the cleaning mechanism 2 is installed in the air collecting barrel 101.

[0028] From the above description, it can be seen that: dust-containing high-temperature exhaust gas enters from the air inlet 1011 of the air collecting barrel 101, and exchanges heat with the cold water in the heat exchange barrel 102. The heat exchange barrel 102 is inside the air collecting barrel 101, and cold water enters the heat exchange barrel 102 from the water inlet 1021, absorbs the residual heat of the exhaust gas and flows out from the water outlet 1022; the cleaning mechanism 2 cleans the inner wall of the air collecting barrel 101 and the outer wall of the heat exchange barrel 102, and dust-containing impurities accumulate at the bottom of the air collecting barrel 101 and are discharged from the sewage outlet Ⅰ1013; the filtering mechanism 3 filters the exhaust gas after cooling.

[0029] The cleaning mechanism 2 includes a motor I 21, a screw I 22, a motor II 23, a telescopic rod 24, a sliding rod I 25, a sliding frame 26, an inner tooth 27, a gear I 28, a scraper I 29, a scraper II 210, a scraper III 211, a gear II 212, a sealing ring I 214, and a sealing ring II 215; the screw I 22 and the sliding rod I 25 are respectively located in the sliding groove I 1015 on both sides of the gas collecting barrel 101, the screw I 22 is rotatably connected to the gas collecting barrel 101, and the sliding rod I 25 is fixedly connected to the gas collecting barrel 101; the motor I 21 is installed at one end of the screw I 22, The output shaft of the motor I 21 is fixedly connected to the screw I 22; the sliding frame 26 is slidably installed in the gas collecting barrel 101, the sliding frame 26 is threadedly connected to the screw I 22, and is slidably connected to the sliding rod I 25; the internal teeth 27 and the gear I 28 are rotatably installed on one side of the sliding frame 26, the gear II 212 is located between the internal teeth 27 and the gear I 28, the gear II 212 and the internal teeth 27 and the gear I 28 are meshed with each other, and a telescopic rod 24 is installed on one side of the gear II 212, and the telescopic end of the telescopic rod 24 passes through the gas collecting barrel 101, the fixed plate 1014, the sliding frame 26 and the gear II 21 2 is fixedly connected, the motor II 23 is installed on one side of the telescopic rod 24, and the output shaft of the motor II 23 is fixedly connected to the telescopic rod 24; the scraper I 29 is fixedly connected to the inner gear 27, and the scraper II 210 is fixedly connected to the gear I 28. The scrapers I 29 and II 210 are both annular, and the cleaning end of the scraper I 29 fits in with the inner wall of the gas collecting barrel 101, and the cleaning end of the scraper II 210 fits in with the outer wall of the heat exchange barrel 102. A scraper III 211 is provided between the scrapers I 29 and II 210, and the scraper III 211 is fixedly connected to the sliding frame 26. The two sides of the scraper III 211 are respectively connected to the scrapers Plate I 29 and scraper II 210 fit together; the sealing ring I 214 is located on one side of the gear ring end of the inner tooth 27 and is fixedly installed on the sliding frame 26, and the sealing ring II 215 is located on one side of the gear ring end of the gear I 28 and is fixedly installed on the sliding frame 26. A protective shell 213 is provided on the outside of the gear II 212, and the protective shell 213 is rotatably connected to the telescopic rod 24. The protective shell 213 is fixedly connected to the sealing ring I 214 and the sealing ring II 215. The protective shell 213, the sealing ring I 214 and the sealing ring II 215 are provided with notches at the meshing position of the gear II 212 and the inner tooth 27 and the gear I 28.

[0030] From the above description, it can be seen that: motor I 21 drives screw I 22 to rotate, so that the sliding frame 26 moves along the sliding rod I 25 in the gas collecting barrel 101, so that scraper I 29 and scraper II 210 move in the gas collecting barrel 101 to clean, and push the solid particles into the sewage outlet I 1013; motor II 23 drives gear II 212 to rotate through telescopic rod 24, and scraper I 29 rotates with the inner teeth 27 to clean the inner wall of the gas collecting barrel 101, and scraper I 29 rotates with gear I 28 to clean the outer wall of the heat exchange barrel 102. During the rotation of scraper I 29 and scraper II 210, they contact scraper III 211, and scraper III 211 cleans the solid particles attached to scraper I 29 and scraper II 210.

[0031] The filtering mechanism 3 includes a filter plate 32, a filter box 33, a dirt collecting box 34, a motor III 38, a lead screw II 39, a sliding rod II 310, an electric push rod 311, a scraper IV 312, a filtering area 313, and a cleaning area 314; the filter box 33 is installed on the fixed frame 1, and the filter box 33 is connected to the air collecting barrel 101 through the air pipe 1012. An air outlet 31 is provided at one end of the filter box 33, and a dirt collecting box 34 is provided on one side of the filter box 33. The bottom of the sewage collecting box 34 is provided with a sewage outlet II 35; the filter box 33 is provided with a plurality of sliding grooves II 36, and the sliding grooves II 36 are provided with partitions 37 on both sides. The partitions 37 are fixedly connected to the filter box 33, and the filter box 33 is divided into a filtering area 313 and a cleaning area 314 by the partitions 37; the air outlet 31 is located at one end of the filtering area 313, and the sewage collecting box 34 is located on one side of the cleaning area 314; the filter plate 32 is provided with a plurality of sliding grooves II 36, and the sliding grooves II 36 are provided with partitions 37 on both sides. The partitions 37 are fixedly connected to the filter box 33, and the filter box 33 is divided into a filtering area 313 and a cleaning area 314 by the partitions 37; the air outlet 31 is located The filter box 33 is fixed with the electric push rod 311 on one side, and the telescopic end of the electric push rod 311 is slidably connected to the filter box 33 and is fixedly connected to the scraper IV312.

[0032] From the above description, it can be seen that after the dust-laden high-temperature exhaust gas is cooled by heat exchange in the gas collecting barrel 101, it enters the filter area 313 of the filter box 33 through the air pipe 1012 for filtration; a plurality of filter plates 32 are provided, which are installed in the corresponding sliding grooves II 36; during filtering, one group of filter plates 32 is located in the filter area 313, and the remaining multiple groups of filter plates 32 are located in the cleaning area 314; when the filter plates 32 in the filter area 313 need to be cleaned, the motor III 38 rotates the screw II 39 to first move the filter plates 32 in the cleaning area 314 to the filter area 313, and then the filter plates 32 that originally needed to be cleaned in the filter area 313 are moved to the cleaning area 314; then, the electric push rod 311 pushes the scraper IV 312 to slide in the filter box 33, cleans the filter plates 32 entering the cleaning area 314, and pushes the cleaned solid particles into the sewage collecting box 34, and finally the solid particles are discharged from the sewage outlet II 35 of the sewage collecting box 34.

[0033] A waste heat recovery and utilization device for treating dusty high-temperature exhaust gas, the working process is as follows:

[0034] The dust-laden high-temperature exhaust gas enters from the air inlet 1011 of the air collecting barrel 101 and exchanges heat with the cold water in the heat exchange barrel 102. The heat exchange barrel 102 is inside the air collecting barrel 101. The cold water enters the heat exchange barrel 102 from the water inlet 1021, absorbs the residual heat of the exhaust gas and flows out from the water outlet 1022; the cleaning mechanism 2 cleans the inner wall of the air collecting barrel 101 and the outer wall of the heat exchange barrel 102, and the dust-laden impurities accumulate at the bottom of the air collecting barrel 101 and are discharged from the sewage outlet I 1013; the filtering mechanism 3 filters the exhaust gas after cooling.

[0035] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In summary, electronic or electrical components including but not limited to motors, electric push rods, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art, and are not within the scope of protection of the present utility model.

[0037] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A waste heat recovery and utilization device for treating dust-laden high-temperature exhaust gas, comprising a fixed frame, a gas collecting barrel, a fixed plate, a heat exchange barrel, a cleaning mechanism, and a filtering mechanism; the fixed frame is mounted with a gas collecting barrel, one end of which is provided with an air inlet, a bottom of which is provided with a sewage outlet I, the filtering mechanism is mounted at one end of the gas collecting barrel, an air pipe is provided between the gas collecting barrel and the filtering mechanism, and the gas collecting barrel and the filtering mechanism are interconnected through the air pipe; sliding grooves I are provided on both sides of the gas collecting barrel; fixed plates are mounted at both ends of the gas collecting barrel, the heat exchange barrel is mounted in the gas collecting barrel via the fixed plates, one end of the heat exchange barrel is provided with a water inlet, and the other end of the heat exchange barrel is provided with a water outlet; the cleaning mechanism is mounted in the gas collecting barrel; It is characterized by The filter mechanism includes a filter plate, a filter box, a dirt collection box, a motor III, a screw II, a sliding rod II, an electric push rod, a filter area, and a cleaning area; the filter box is installed on a fixed frame, the filter box is connected to the air collecting barrel through an air pipe, one end of the filter box is provided with an air outlet, a dirt collection box is provided on one side of the filter box, the dirt collection box is connected to the filter box, and a sewage outlet II is provided at the bottom of the dirt collection box; a number of sliding grooves II are provided in the filter box, partitions are provided on both sides of the sliding grooves II, the partitions are fixedly connected to the filter box, the filter box is divided into a filter area and a cleaning area by the partitions; the air outlet is located at one end of the filter area, and the dirt collection box is located on one side of the cleaning area; the filter plate is provided with a number and is slidably installed in the corresponding sliding grooves II, the screw II is located on one side of the filter plate, the screw II is rotatably connected to the filter box and is threadedly connected to the filter plate, the motor III is installed on the top of the filter box, the output shaft of the motor III is fixedly connected to the screw II, the sliding rod II is opposite to the screw II, located on one side of the filter plate and slidably connected to the filter plate, and the sliding rod II is fixedly connected to the filter box; The cleaning mechanism includes motor I, screw I, motor II, telescopic rod, sliding rod I, sliding frame, internal teeth, gear I, scraper I, scraper II, scraper III, and gear II; the screw I and sliding rod I are respectively located in the sliding groove I on both sides of the gas collecting barrel, the screw I is rotatably connected to the gas collecting barrel, and the sliding rod I is fixedly connected to the gas collecting barrel; motor I is installed at one end of screw I, and the output shaft of motor I is fixedly connected to screw I; the sliding frame is slidably installed in the gas collecting barrel, the sliding frame is threadedly connected to screw I, and is slidably connected to sliding rod I; the internal teeth and gear I are rotatably installed on one side of the sliding frame, gear II is located between the internal teeth and gear I, gear II is meshed with the internal teeth and gear I, a telescopic rod is installed on one side of gear II, the telescopic end of the telescopic rod passes through the gas collecting barrel, the fixed plate, the sliding frame and the gear II are fixedly connected, the motor II is installed on one side of the telescopic rod, and the output shaft of motor II is fixedly connected to the telescopic rod; the scraper I is fixedly connected to the internal teeth, and the scraper II is fixedly connected to gear I.

2. The waste heat recovery and utilization device for treating dusty high-temperature exhaust gas according to claim 1 is characterized in that Scraper I and scraper II are both annular. The cleaning end of scraper I fits with the inner wall of the gas collecting barrel, and the cleaning end of scraper II fits with the outer wall of the heat exchange barrel.

3. The waste heat recovery and utilization device for treating dusty high-temperature exhaust gas according to claim 1 is characterized in that A scraper III is provided between the scraper I and the scraper II. The scraper III is fixedly connected to the sliding frame, and two sides of the scraper III are matched with the scraper I and the scraper II.

4. The waste heat recovery and utilization device for treating dusty high-temperature exhaust gas according to claim 1 is characterized in that Sealing ring I is located on one side of the inner gear ring end and is fixedly installed with the sliding frame. Sealing ring II is located on one side of the gear ring end of gear I and is fixedly installed with the sliding frame. A protective shell is provided on the outside of gear II. The protective shell is rotatably connected to the telescopic rod. The protective shell is fixedly connected to sealing ring I and sealing ring II. The protective shell, sealing ring I and sealing ring II are provided with notches at the meshing position between gear II and the inner gear and gear I.

5. The waste heat recovery and utilization device for treating dusty high-temperature exhaust gas according to claim 1 is characterized in that There are several scrapers IV located in the cleaning area at the bottom of the partition. Scrapers IV are slidably installed in the filter box and are located on one side of the sliding groove II. An electric push rod is installed on one side of the filter box. The telescopic end of the electric push rod is slidably connected to the filter box and fixedly connected to the scraper IV.

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