A waste gas purification device suitable for environmental protection engineering construction

Abstract

The application relates to the field of waste gas purification technology, and discloses a waste gas purification device suitable for environmental protection engineering construction, which comprises a separation frame, a sealing door is hingedly connected to the surface of the separation frame, an air inlet frame is communicated with the surface of the separation frame, a vertical pipe is communicated with the bottom of the separation frame, a supporting disc is fixedly connected to the bottom of the vertical pipe, an installation ring is rotatably connected to the inner wall of the supporting disc, a roller is fixedly connected to the inner wall of the installation ring, a top frame is fixedly connected to the top of the separation frame, and an air extraction component is arranged in the separation frame. The bottom of the vertical pipe is provided with the supporting disc, the separation frame is supported by the supporting disc, the separation frame is arranged, the installation ring is arranged in the supporting disc to position the roller, the position of the separation frame is adjusted through the roller, the air pump starts operation in the vertical pipe, the suction force generated by the air pump is transmitted to the inside of the circular-arc frame through the transmission frame, and the circular-arc frame transmits the suction force to the outer end of the separation frame through the air inlet frame.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas purification, and in particular to a waste gas purification device suitable for use in environmental protection engineering construction. Background Art

[0002] Environmental protection engineering construction refers to the adoption of various measures and technologies during the construction and development process to reduce pollution and damage to the environment and protect the sustainable development of the ecological environment. During the project construction process, full consideration should be given to ecological environmental protection, and the destruction of ecological balance should be avoided as much as possible. At the same time, environmental monitoring should be strengthened;

[0003] A large number of mechanized facilities are needed during the construction process. Mechanical facilities will emit exhaust gas during operation. The accumulation of a large amount of exhaust gas can easily cause air pollution. At present, exhaust gas purification devices are generally used to purify the exhaust gas in the air. However, the exhaust gas discharged by mechanical facilities will contain particles. Once the particles enter the interior of the exhaust gas purification device, it is easy to cause blockage. Summary of the Invention

[0004] The purpose of the present invention is to provide an exhaust gas purification device suitable for use in environmental protection engineering construction to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an exhaust gas purification device suitable for use in environmental protection engineering construction, comprising a separation frame, a sealing door hingedly connected to the surface of the separation frame, an air intake frame connected to the surface of the separation frame, a vertical pipe connected to the bottom of the separation frame, a support plate fixedly connected to the bottom of the vertical pipe, a mounting ring rotatably connected to the inner wall of the support plate, a roller fixedly connected to the inner wall of the mounting ring, a top frame fixedly connected to the top of the separation frame, an exhaust component provided inside the separation frame, and a cleaning component provided inside the separation frame;

[0007] The air extraction component includes a filter frame, the bottom of the filter frame is fixedly connected to the bottom of the inner wall of the separation frame, the inner wall of the vertical pipe is fixedly connected to an air pump, the bottom of the air pump is connected to an air outlet pipe, the end of the air outlet pipe away from the air pump is connected to an exhaust gas purification device, the surface of the exhaust gas purification device is fixedly connected to a fixing frame, the end of the fixing frame is fixedly connected to a connecting ring, the inner wall of the connecting ring is connected to the surface fixing plate of the vertical pipe, the top of the air pump is connected to a transmission frame, and the surface of the transmission frame is connected to an arc frame.

[0008] Furthermore, the top of the filter frame is fixedly connected to the top of the inner wall of the separation frame, the end of the air outlet pipe away from the air pump passes through the vertical pipe and extends to the outer end of the vertical pipe, and the transmission frame is located at the inner center of the separation frame.

[0009] Furthermore, there are four arc frames, which are arranged around the transmission frame as the center circle. One end of the arc frame away from the transmission frame contacts the inner wall of the filter frame, and the arc frame corresponds to the air intake frame.

[0010] Furthermore, the cleaning component includes a motor, the bottom of the motor is fixedly connected to the top of the separation frame, the output end of the motor is fixedly connected to a rotating frame, the end of the rotating frame is fixedly connected to a stabilizing ring, the surface of the stabilizing ring is fixedly connected to a right-angle plate, the bottom of the right-angle plate is fixedly connected to a limiting ring, the inner wall of the limiting ring is slidably connected to a cross-hole rod, the inner wall of the cross-hole rod is plugged with a cross rod, the bottom of the cross rod is fixedly connected to a scraper, the surface of the scraper is provided with a feeding hole, the lower surface of the scraper is provided with a collecting hole, and a collecting component is provided inside the scraper.

[0011] Furthermore, the output end of the motor passes through the top frame and extends to the inside of the top frame, the rotating frame is located inside the top frame, the limiting ring is located at the top of the inner wall of the separation frame, the end of the cross hole rod passes through the limiting ring and extends to the outer end of the limiting ring, and the scraper is located inside the separation frame.

[0012] Furthermore, the surface of the scraper contacts the surface of the filter frame, and there are four scrapers, which are arranged on a circle with the filter frame as the center. The bottom of the feed hole and the top of the collection hole are connected to each other, and the bottom of the scraper contacts the bottom of the inner wall of the separation frame.

[0013] Furthermore, the collecting component includes a storage rack, the inner wall of the storage rack is fixedly connected to a positioning plate, the end of the positioning plate away from the storage rack is fixedly connected to a sliding rack, the top of the sliding rack is fixedly connected to a spring, the surface of the scraper is provided with a sliding hole, and the bottom of the inner wall of the scraper is provided with a groove.

[0014] Furthermore, the top of the spring is fixedly connected to the top of the inner wall of the sliding hole, and the inner wall of the sliding frame is slidably connected to the inner wall of the sliding hole.

[0015] Furthermore, the end of the sliding frame extends to the outer end of the sliding hole, the sliding hole is located at the end of the scraper away from the filter frame, and the surface of the storage frame contacts the inner wall of the groove.

[0016] The present invention has the following beneficial effects:

[0017] The present invention provides a support plate at the bottom of the vertical pipe, which supports the separation frame through the support plate so that the separation frame can be placed. A mounting ring is provided inside the support plate to position the roller so that the position of the separation frame can be adjusted by the roller. The air pump is started to operate inside the vertical pipe, and the suction generated by the air pump will be transmitted to the inside of the arc frame through the transmission frame. The arc frame transmits the suction to the outer end of the separation frame through the air intake frame. At this time, the air intake frame can suck the exhaust gas in the construction site into the interior of the separation frame. The exhaust gas entering the separation frame will enter the interior of the arc frame after being filtered by the filter frame. The filter frame can filter particles in the exhaust gas to prevent particles from entering the interior of the exhaust gas purification device with the exhaust gas and causing blockage. The filtered exhaust gas will enter the interior of the exhaust gas purification device through the connection between the air pump and the outlet pipe, and the exhaust gas purification device is used to purify the exhaust gas in the construction site.

[0018] The present invention starts a motor to drive the rotating frame to rotate inside the top frame. When the rotating frame rotates, the connection between the stabilizing ring and the right-angle plate drives the limiting ring to rotate. When the limiting ring rotates, the scraper is driven to rotate by the connection between the cross hole rod and the cross rod. When the scraper rotates, it cleans the surface of the filter frame so that particles attached to the surface of the filter frame can be scraped off, avoiding the accumulation of particles on the surface of the filter frame affecting the exhaust gas circulation. The scraped particles will enter the internal storage of the scraper through the feed hole, and at the same time, the particles that fall into the separation frame will enter the internal storage of the scraper through the collection hole.

[0019] The particles entering the scraper of the present invention will be stored in the storage rack. When the particles in the storage rack need to be processed, the sealing door is opened. After the sealing door is opened, the cross-hole rod is pushed upward. When the cross-hole rod is separated from the cross rod, the scraper can be taken out from the inside of the separation rack through the sealing door. The sliding rack is pushed to move upward, and the sliding rack will drive the storage rack to move upward through the positioning plate. After the scraper is tilted and the sliding rack is released, the sliding rack pushes the storage rack to collide with the groove through the elasticity of the spring. The collision will cause the particles inside the storage rack to fall off quickly, so that the cleaned particles can be stored.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic cross-sectional structural diagram of the separation frame of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of the air extraction component of the present invention;

[0025] Figure 4 This is another structural schematic diagram of the air extraction component of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the cleaning component of the present invention;

[0027] Figure 6 This is another structural schematic diagram of the cleaning component of the present invention;

[0028] Figure 7 It is a schematic diagram of the overall structure of the collecting component of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] In the figure: 1. Separation frame; 2. Air intake frame; 3. Vertical pipe; 4. Mounting ring; 5. Roller; 6. Support plate; 7. Sealing door; 8. Top frame; 9. Exhaust component; 10. Cleaning component; 11. Collecting component; 20. Filter frame; 21. Connecting ring; 22. Exhaust pipe; 23. Fixed frame; 24. Exhaust gas purification device; 25. Air pump; 26. Arc frame; 27. Transmission frame; 30. Motor; 31. Rotating frame; 32. Stabilizing ring; 33. Right-angle plate; 34. Cross rod; 35. Limiting ring; 36. Cross hole rod; 37. Feed hole; 38. Scraper; 39. Collecting hole; 40. Sliding hole; 41. Spring; 42. Sliding frame; 43. Groove; 44. Positioning plate; 45. Storage rack. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7As shown, the present invention is an exhaust gas purification device suitable for use in environmental protection engineering construction, comprising a separation frame 1, a sealing door 7 hingedly connected to the surface of the separation frame 1, an air intake frame 2 connected to the surface of the separation frame 1, a vertical pipe 3 connected to the bottom of the separation frame 1, a support plate 6 fixedly connected to the bottom of the vertical pipe 3, a mounting ring 4 rotatably connected to the inner wall of the support plate 6, a roller 5 fixedly connected to the inner wall of the mounting ring 4, a top frame 8 fixedly connected to the top of the separation frame 1, an exhaust component 9 provided inside the separation frame 1, and a cleaning component 10 provided inside the separation frame 1;

[0033] The exhaust component 9 includes a filter frame 20, the bottom of the filter frame 20 is fixedly connected to the bottom of the inner wall of the separation frame 1, the inner wall of the vertical pipe 3 is fixedly connected to the air pump 25, the bottom of the air pump 25 is connected to the air outlet pipe 22, the end of the air outlet pipe 22 away from the air pump 25 is connected to the exhaust gas purification device 24, the surface of the exhaust gas purification device 24 is fixedly connected to the fixing frame 23, the end of the fixing frame 23 is fixedly connected to the connecting ring 21, the inner wall of the connecting ring 21 is connected to the surface fixed disk of the vertical pipe 3, the top of the air pump 25 is connected to the transmission frame 27, and the surface of the transmission frame 27 is connected to the arc frame 26.

[0034] The top of the filter frame 20 is fixedly connected to the top of the inner wall of the separation frame 1 . The end of the air outlet pipe 22 away from the air pump 25 passes through the vertical pipe 3 and extends to the outer end of the vertical pipe 3 . The transmission frame 27 is located at the inner center of the separation frame 1 .

[0035] There are four arc frames 26. The present invention is provided with a support plate 6 at the bottom of the vertical pipe 3, and the separation frame 1 is supported by the support plate 6 so that the separation frame 1 can be placed. A mounting ring 4 is provided inside the support plate 6 to position the roller 5 so that the position of the separation frame 1 can be adjusted by the roller 5. The air pump 25 is started to work inside the vertical pipe 3. The suction generated by the air pump 25 is transmitted to the inside of the arc frame 26 through the transmission frame 27. The arc frame 26 transmits the suction to the outer end of the separation frame 1 through the air intake frame 2. At this time, the air intake frame 2 can suck the waste gas in the construction site into the interior of the separation frame 1 and enter the separation frame 1. The exhaust gas inside the frame 1 will enter the interior of the arc frame 26 after being filtered by the filter frame 20. The filter frame 20 can filter the particles in the exhaust gas to prevent the particles from entering the exhaust gas purification device 24 with the exhaust gas and causing blockage. The filtered exhaust gas will enter the exhaust gas purification device 24 through the connection between the air pump 25 and the outlet pipe 22. The exhaust gas purification device 24 is used to purify the exhaust gas in the construction site. The four arc frames 26 are arranged with the transmission frame 27 as the center circumference. The end of the arc frame 26 away from the transmission frame 27 is in contact with the inner wall of the filter frame 20, and the arc frame 26 corresponds to the air intake frame 2.

[0036] The cleaning component 10 includes a motor 30, the bottom of the motor 30 is fixedly connected to the top of the separation frame 1, the output end of the motor 30 is fixedly connected to the rotating frame 31, the end of the rotating frame 31 is fixedly connected to the stabilizing ring 32, the surface of the stabilizing ring 32 is fixedly connected to the right-angle plate 33, the bottom of the right-angle plate 33 is fixedly connected to the limiting ring 35, the inner wall of the limiting ring 35 is slidably connected to the cross hole rod 36, the inner wall of the cross hole rod 36 is inserted with a cross rod 34, the bottom of the cross rod 34 is fixedly connected to the scraper 38, the surface of the scraper 38 is provided with a feeding hole 37, the lower surface of the scraper 38 is provided with a collecting hole 39, and the interior of the scraper 38 is provided with a collecting component 11.

[0037] The output end of the motor 30 passes through the top frame 8 and extends to the inside of the top frame 8. The starting motor 30 of the present invention drives the rotating frame 31 to rotate inside the top frame 8. When the rotating frame 31 rotates, the limit ring 35 is driven to rotate through the connection between the stabilizing ring 32 and the right-angle plate 33. When the limit ring 35 rotates, the scraper 38 is driven to rotate through the connection between the cross hole rod 36 and the cross rod 34. When the scraper 38 rotates, it cleans the surface of the filter frame 20 so that particles attached to the surface of the filter frame 20 can be scraped off, preventing particles from accumulating on the surface of the filter frame 20 and affecting the flow of exhaust gas. The scraped particles will enter the internal storage of the scraper 38 through the feed hole 37. At the same time, the particles falling into the separation frame 1 will enter the internal storage of the scraper 38 through the collecting hole 39. The rotating frame 31 is located inside the top frame 8, the limit ring 35 is located at the top of the inner wall of the separation frame 1, the end of the cross hole rod 36 passes through the limit ring 35 and extends to the outer end of the limit ring 35, and the scraper 38 is located inside the separation frame 1.

[0038] The surface of the scraper 38 contacts the surface of the filter frame 20. There are four scrapers 38, which are arranged around the filter frame 20. The bottom of the feed hole 37 is connected to the top of the collection hole 39, and the bottom of the scraper 38 contacts the bottom of the inner wall of the separation frame 1.

[0039] The collecting component 11 includes a storage rack 45, the inner wall of the storage rack 45 is fixedly connected to a positioning plate 44, the end of the positioning plate 44 away from the storage rack 45 is fixedly connected to a sliding rack 42, the top of the sliding rack 42 is fixedly connected to a spring 41, a sliding hole 40 is provided on the surface of the scraper 38, and a groove 43 is provided at the bottom of the inner wall of the scraper 38.

[0040] The top of the spring 41 is fixedly connected to the top of the inner wall of the sliding hole 40 , and the inner wall of the sliding frame 42 is slidably connected to the inner wall of the sliding hole 40 .

[0041] The end of the sliding rack 42 extends to the outer end of the sliding hole 40. The particles entering the scraper 38 of the present invention will be stored in the storage rack 45. When the particles in the storage rack 45 need to be processed, the sealing door 7 is opened. After the sealing door 7 is opened, the cross hole rod 36 is pushed upward. When the cross hole rod 36 is separated from the cross rod 34, the scraper 38 can be taken out from the inside of the separation rack 1 through the sealing door 7, and the sliding rack 42 is pushed upward. The sliding rack 42 will drive the storage rack 45 to move upward through the positioning plate 44. After the scraper 38 is tilted, the sliding rack 42 is released. The sliding rack 42 pushes the storage rack 45 to collide with the groove 43 through the elasticity of the spring 41. The collision will cause the particles inside the storage rack 45 to fall off quickly, so as to store the cleaned particles. The sliding hole 40 is located at the end of the scraper 38 away from the filter rack 20, and the surface of the storage rack 45 contacts the inner wall of the groove 43.

[0042] When in use, a support plate 6 is provided at the bottom of the vertical pipe 3, and the separation frame 1 is supported by the support plate 6 so that the separation frame 1 can be placed. A mounting ring 4 is provided inside the support plate 6 to position the roller 5 so that the position of the separation frame 1 can be adjusted by the roller 5. The air pump 25 is started to work inside the vertical pipe 3. The suction generated by the air pump 25 will be transmitted to the inside of the arc frame 26 through the transmission frame 27. The arc frame 26 transmits the suction to the outer end of the separation frame 1 through the air intake frame 2. At this time, the air intake frame 2 can suck the exhaust gas in the construction site into the interior of the separation frame 1 and enter the separation frame 1. The exhaust gas from the outside will enter the interior of the arc frame 26 after being filtered by the filter frame 20. The filter frame 20 can filter the particles in the exhaust gas to prevent the particles from entering the exhaust gas purification device 24 with the exhaust gas and causing blockage. The filtered exhaust gas will enter the interior of the exhaust gas purification device 24 through the connection between the air pump 25 and the exhaust pipe 22. The exhaust gas purification device 24 is used to purify the exhaust gas in the construction site. The starting motor 30 drives the rotating frame 31 to rotate inside the top frame 8. When the rotating frame 31 rotates, it drives the limit ring 35 through the connection between the stabilizing ring 32 and the right-angle plate 33. The scraper 38 is driven to rotate by the connection between the cross hole rod 36 and the cross rod 34 when the limiting ring 35 rotates. The scraper 38 cleans the surface of the filter frame 20 when it rotates, so that the particles attached to the surface of the filter frame 20 can be scraped off, avoiding the accumulation of particles on the surface of the filter frame 20 affecting the exhaust gas circulation. The scraped particles will enter the internal storage of the scraper 38 through the feed hole 37. At the same time, the particles falling into the separation frame 1 will enter the internal storage of the scraper 38 through the collecting hole 39. The particles entering the scraper 38 will be stored in the storage rack 45. The particles in the storage rack 45 need to be cleaned. When the particles are to be processed, the sealing door 7 is opened. After the sealing door 7 is opened, the cross hole rod 36 is pushed to move upward. When the cross hole rod 36 is separated from the cross rod 34, the scraper 38 can be taken out from the inside of the separation rack 1 through the sealing door 7, and the sliding rack 42 is pushed to move upward. The sliding rack 42 will drive the storage rack 45 to move upward through the positioning plate 44. After the scraper 38 is tilted, the sliding rack 42 is released. The sliding rack 42 pushes the storage rack 45 to collide with the groove 43 through the elasticity of the spring 41. The collision will cause the particles inside the storage rack 45 to fall off quickly, so that the cleaned particles can be stored.

[0043] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An exhaust gas purification device suitable for use in environmental protection engineering construction, comprising a separation frame (1), characterized in that: The surface of the separation frame (1) is hinged with a sealing door (7), the surface of the separation frame (1) is connected to the air inlet frame (2), the bottom of the separation frame (1) is connected to a vertical pipe (3), the bottom of the vertical pipe (3) is fixedly connected to a support plate (6), the inner wall of the support plate (6) is rotatably connected to a mounting ring (4), the inner wall of the mounting ring (4) is fixedly connected to a roller (5), the top of the separation frame (1) is fixedly connected to a top frame (8), the interior of the separation frame (1) is provided with an exhaust component (9), and the interior of the separation frame (1) is provided with a cleaning component (10); The air extraction component (9) includes a filter frame (20), the bottom of the filter frame (20) is fixedly connected to the bottom of the inner wall of the separation frame (1), the inner wall of the vertical pipe (3) is fixedly connected to an air pump (25), the bottom of the air pump (25) is connected to an air outlet pipe (22), the end of the air outlet pipe (22) away from the air pump (25) is connected to an exhaust gas purification device (24), the surface of the exhaust gas purification device (24) is fixedly connected to a fixing frame (23), the end of the fixing frame (23) is fixedly connected to a connecting ring (21), the inner wall of the connecting ring (21) is connected to a surface fixing plate of the vertical pipe (3), the top of the air pump (25) is connected to a transmission frame (27), and the surface of the transmission frame (27) is connected to an arc frame (26); The cleaning component (10) includes a scraper (38), a feed hole (37) is provided on the surface of the scraper (38), a collecting hole (39) is provided on the lower surface of the scraper (38), a collecting component (11) is provided inside the scraper (38), the surface of the scraper (38) contacts the surface of the filter frame (20), the bottom of the feed hole (37) and the top of the collecting hole (39) are communicated with each other, and the bottom of the scraper (38) contacts the bottom of the inner wall of the separation frame (1); The collecting component (11) includes a storage rack (45), an inner wall of the storage rack (45) is fixedly connected to a positioning plate (44), an end of the positioning plate (44) away from the storage rack (45) is fixedly connected to a sliding rack (42), a top of the sliding rack (42) is fixedly connected to a spring (41), a surface of the scraper (38) is provided with a sliding hole (40), and a bottom of the inner wall of the scraper (38) is provided with a groove (43); The top of the spring (41) is fixedly connected to the top of the inner wall of the sliding hole (40), and the inner wall of the sliding frame (42) is slidably connected to the inner wall of the sliding hole (40); The end of the sliding frame (42) extends to the outer end of the sliding hole (40), and the sliding hole (40) is located at the end of the scraper (38) away from the filter frame (20). The surface of the storage frame (45) contacts the inner wall of the groove (43).

2. The exhaust gas purification device suitable for environmental protection engineering construction according to claim 1, characterized in that: The top of the filter frame (20) is fixedly connected to the top of the inner wall of the separation frame (1), the end of the air outlet pipe (22) away from the air pump (25) passes through the vertical pipe (3) and extends to the outer end of the vertical pipe (3), and the transmission frame (27) is located at the inner center of the separation frame (1).

3. The exhaust gas purification device suitable for environmental protection engineering construction according to claim 2, characterized in that: The number of the circular arc frames (26) is four, and the four circular arc frames (26) are arranged around the transmission frame (27) as a central circumference. One end of the circular arc frame (26) away from the transmission frame (27) contacts the inner wall of the filter frame (20), and the circular arc frame (26) corresponds to the air inlet frame (2).

4. The exhaust gas purification device suitable for environmental protection engineering construction according to claim 3 is characterized by: The cleaning component (10) includes a motor (30), the bottom of the motor (30) is fixedly connected to the top of the separation frame (1), the output end of the motor (30) is fixedly connected to the rotating frame (31), the end of the rotating frame (31) is fixedly connected to a stabilizing ring (32), the surface of the stabilizing ring (32) is fixedly connected to a right-angle plate (33), the bottom of the right-angle plate (33) is fixedly connected to a limiting ring (35), the inner wall of the limiting ring (35) is slidably connected to a cross-hole rod (36), the inner wall of the cross-hole rod (36) is plugged with a cross rod (34), and the bottom of the cross rod (34) is fixedly connected to a scraper (38).

5. The exhaust gas purification device suitable for environmental protection engineering construction according to claim 4 is characterized in that: The output end of the motor (30) passes through the top frame (8) and extends to the inside of the top frame (8), the rotating frame (31) is located inside the top frame (8), the limiting ring (35) is located at the top of the inner wall of the separation frame (1), the end of the cross hole rod (36) passes through the limiting ring (35) and extends to the outer end of the limiting ring (35), and the scraper (38) is located inside the separation frame (1).

6. The exhaust gas purification device suitable for environmental protection engineering construction according to claim 5, characterized in that: The number of the scrapers (38) is four, and the four scrapers (38) are arranged around the filter frame (20) as a central circumference.

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