High-efficiency double-pulse disturbance flow dust-settling collector

Abstract

The application relates to a high-efficiency double-pulse disturbance dust-settling dust collector, and belongs to the dust collector field.The high-efficiency double-pulse disturbance dust-settling dust collector comprises a shell, the shell comprises a dust removal part located at the upper portion and a dust collecting part located below the dust removal part, the inside of the dust removal part is hollow to form a clean room and a dust removal room, the inside of the dust collecting part is hollow to form a dust collecting room, the dust removal part is bolt-connected with the dust collecting part, the port of the dust collecting part close to the dust removal part is larger than the port of the dust removal part; the end of the dust collecting part close to the dust removal part is provided with a plurality of dust blowing assemblies, each dust blowing assembly comprises a nozzle, the nozzle is communicated with a spray pipe, the other end of the spray pipe is communicated with a gas storage device, and the nozzle can clean the iron powder on the inner wall at the connecting position of the dust collecting part and the dust removal part. The application has the effects of reducing the accumulation of the oxide scale or the iron powder at the connecting position of the dust collecting part and the dust removal part and at the connecting position of the adjacent side wall of the dust collecting part, reducing the possibility of self-ignition of the iron powder, and improving the safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dust collectors, in particular to a high-efficiency double-pulse turbulence dust-settling dust collector. BACKGROUND

[0002] A dust collector is a dry dust filtering device. When dust-containing gas enters a bag-type dust collector, dust with large particles and large specific gravity falls into a hopper due to gravity, and gas containing fine dust is filtered through filter material, so that the gas is purified. A pulse dust collector refers to a method of removing dust attached to a filter medium (bag or filter cartridge) by blowing compressed air. As the filtering time is prolonged, the dust layer on the filter bag continues to thicken, and the resistance of the dust removal equipment continues to rise. When the equipment resistance rises to a set value, the dust removal device starts to clean the dust.

[0003] In the metal material surface treatment industry, a shot blasting machine is generally used to treat the metal surface. In order to prevent the diffusion of oxide scale or iron powder gas to the surrounding environment during the operation of the shot blasting machine, a pulse dust collector is generally used to collect the oxide scale or iron powder. The pulse dust collector includes a housing, the housing includes a square dust removal part located at the upper portion and a square funnel-shaped dust collecting part located below the dust removal part. The dust removal part and the dust collecting part are generally connected by bolts. In order to ensure the sealing performance of the connection part, a rubber pad is generally arranged between the two parts for sealing. The inside of the dust removal part is a clean room located at the upper portion and a dust removal chamber located below the clean room. The inside of the dust collecting part is a dust collecting chamber. A filter cartridge is arranged in the dust removal chamber, and a bag is arranged outside the filter cartridge for dust removal. A pulse dust cleaning assembly is further arranged in the clean room. The pulse dust cleaning assembly includes a blowing pipe and a gas storage device for providing pulse high-pressure gas. The nozzle of the blowing pipe is located above the filter cartridge. During dust cleaning, the pulse dust cleaning assembly blows pulse high-pressure gas to remove the oxide scale or iron powder attached to the bag. The oxide scale or iron powder falls into the dust collecting chamber from the dust removal chamber, and then the iron powder in the dust collecting chamber is collected.

[0004] According to the related technology in the above, it is difficult to achieve smooth transition between the dust removal part and the dust collecting part due to processing errors or installation errors, so that the inner wall of the housing may have a step, and the connection position of the adjacent side wall of the dust collecting part has a turning angle. The oxide scale or iron powder may accumulate at the step position or the turning angle position during falling into the dust collecting chamber. The accumulation of iron powder is easy to ignite, thereby damaging the dust collector and affecting the normal operation, and even causing a fire. SUMMARY

[0005] In order to reduce the accumulation of oxide scale or iron powder at the connection position of the dust collecting part and the dust removal part and the connection position of the adjacent side wall of the dust collecting part, and reduce the possibility of self-ignition of the iron powder, the present application provides a high-efficiency double-pulse turbulence dust-settling dust collector.

[0006] The high-efficiency double-pulse disturbance flow dust settling and removing device provided by the application adopts the following technical scheme:

[0007] The high-efficiency double-pulse disturbance flow dust settling and removing device comprises a shell, the shell comprises a dust removing part located at the top and a dust collecting part located below the dust removing part, the dust removing part is internally hollow to form a clean room and a dust removing room, the dust collecting part is internally hollow to form a dust collecting room, the dust removing part is bolted to the dust collecting part, and the port of the dust collecting part close to the dust removing part is larger than the port of the dust removing part; the dust collecting part close to the dust removing part is provided with a plurality of dust blowing assemblies, each dust blowing assembly comprises a nozzle, the nozzle is communicated with a spray pipe, the other end of the spray pipe is communicated with a gas storage device, and the nozzle can clean the iron powder on the inner wall at the connection position of the dust collecting part and the dust removing part.

[0008] By adopting the above technical scheme, the port of the dust collecting part is larger than the port of the dust removing part, so as to form a flared structure and reduce the accumulation of iron powder at the connection position. At the same time, by additionally arranging the pulse dust blowing assembly, the double-pulse cleaning is realized in combination with the pulse dust blowing assembly, and the cleaning effect of the iron powder is improved. By arranging the nozzle and the spray pipe, the inner wall at the connection position is cleaned, the dust flows out of the dust remover along the sedimentation surface of the sidewall of the dust collecting part, the accumulation of iron powder is avoided, the dust removing effect is improved, and the safety hidden danger is reduced.

[0009] Optionally, the nozzle is a fan-shaped column, the nozzle is coaxially arranged with the spray pipe, the fan-shaped wall at one end of the nozzle can abut against the inner wall of the dust collecting part, and the fan-shaped wall at the other end is provided with a plurality of air holes.

[0010] By adopting the above technical scheme, the nozzle is arranged as a fan-shaped column, the cleaning area of the nozzle on the inner wall of the dust collecting part is increased, and the cleaning effect is improved. At the same time, the air holes are arranged, so that the high-pressure gas can clean the iron powder on the outer surface of the nozzle, and the accumulation of iron powder is reduced.

[0011] Optionally, the fan-shaped wall at one end of the nozzle close to the inner wall of the dust collecting part is provided with a notch, and the notch extends to the position away from the dust collecting part.

[0012] By adopting the above technical scheme, the high-pressure gas output from the notch can also clean the inner wall of the dust collecting part at the positions on both sides of the nozzle, the cleaning area of the nozzle on the inner wall of the dust collecting part is further increased, and the cleaning effect is improved.

[0013] Optionally, a rubber pad for sealing is arranged between the dust collecting part and the dust removing part, and the rubber pad is provided with a recess part corresponding to the position of the pipe.

[0014] The rubber pad is used to ensure the sealing between the dust collecting part and the dust removing part.

[0015] Optionally, the spray pipe comprises a fixed part and a movable part, the movable part is connected with the nozzle, and the fixed part is coaxially sleeved outside the movable part.

[0016] By adopting the above technical scheme, the rotation of the nozzle is realized by setting the fixed part and the movable part, the flexibility of the nozzle is improved, the rotation of the nozzle further expands the soot blowing area, thereby the number of nozzles used can be reduced, and the production cost of the dust remover is further reduced.

[0017] Optionally, the outer surface of the movable part is provided with a sliding groove, the sliding groove is divided into a horizontal section and a rotation section, the rotation section comprises a transition part and two guide parts, the two guide parts are oppositely and spirally symmetrical around the axis of the fixed part, the two guide parts are close to one end of the horizontal section and are communicated with the horizontal section, and the other end of the two guide parts is connected to the two ends of the transition part, respectively.

[0018] By adopting the above technical scheme, the segmented design of the sliding groove, combined with the cooperation of the sliding block and the sliding groove, enables the movable part to automatically rotate the nozzle and restore the original position, and the structure for realizing the rotation function is simple and easy to realize.

[0019] Optionally, the movable part is provided with a reset spring, when the sliding block slides in the rotation section, the reset spring provides a force to the movable part close to the fixed part.

[0020] By adopting the above technical scheme, the reset spring can provide a force to the movable part close to the fixed part, so that the movable part is reset under the action of the reset spring, and then the sliding block slides along the complete sliding path in the sliding groove, so as to achieve the purpose of automatic rotation of the nozzle.

[0021] Optionally, the rotation section is rotationally connected with a baffle, and the baffle alternately covers the end portions of the two guide parts close to the horizontal section.

[0022] By adopting the above technical scheme, the baffle alternately covers the two guide parts, so as to realize the alternate closing of the two guide parts, and since the sliding block cannot enter the closed guide part, the path selection of the sliding block is realized, so that the nozzle can rotate alternately in two directions.

[0023] Optionally, two said guide parts are provided with a limiting block near the end position of said horizontal section, said baffle can abut against said limiting block, when said baffle abuts against said limiting block, said baffle is arranged obliquely.

[0024] By adopting the technical scheme, the rotation direction of the baffle is limited by the limiting block, and when the baffle abuts against the limiting block, the baffle is arranged obliquely, so that the sliding block can slide along the correct path in the sliding groove.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The port of the dust collecting part is larger than the port of the dust removing part, so as to form a flared structure and reduce the accumulation of iron powder at the connection. At the same time, by adding a pulse blowing component, a double pulse cleaning is realized in combination with the pulse cleaning component, which improves the cleaning effect of the iron powder; by setting the nozzle and the spray pipe, the inner wall of the connection position between the dust collecting part and the dust removing part is cleaned, so that the dust flows out of the dust remover along the sedimentation surface of the sidewall of the dust collecting part, avoiding the accumulation of iron powder and improving the dust removal effect and reducing the safety hazard;

[0027] 2. By setting the nozzle as a fan-shaped column, the cleaning area of the nozzle on the inner wall of the dust collecting part is increased, and the cleaning effect is improved; at the same time, the opening of the vent hole enables the high-pressure gas to clean the iron powder on the outer surface of the nozzle, reducing the accumulation of iron powder;

[0028] 3. By setting the fixed part and the movable part, the rotation of the nozzle is realized, the flexibility of the nozzle is improved, and the rotation of the nozzle further expands the blowing area, thereby reducing the number of nozzles used and further reducing the production cost of the dust remover. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of embodiment 1 of the present application.

[0030] Figure 2 is a sectional view of the dust blowing component of embodiment 1 of the present application.

[0031] Figure 3 is Figure 2 is an enlarged view of part A in FIG. 6.

[0032] Figure 4 is a sectional view of embodiment 2 of the present application, highlighting the sliding block and the return spring.

[0033] Figure 5 is a structural schematic view of embodiment 2 of the present application, highlighting the sliding groove.

[0034] Figure 6 is Figure 5 is an enlarged view of part B in FIG. 8.

[0035] Explanation of reference numerals: 1, housing; 11, dust removal part; 12, dust collection part; 13, rubber pad; 14, gas storage device; 2, soot blowing assembly; 21, nozzle; 211, notch; 212, air hole; 22, spray pipe; 221, fixed part; 2211, sliding block; 222, movable part; 3, sliding groove; 31, horizontal section; 32, turning section; 321, guide part; 322, transition part; 323, baffle; 324, elastic sheet; 325, limiting block; 4, return spring. DETAILED DESCRIPTION

[0036] The above description is made in connection with the accompanying drawings. Figures 1-6 The application is further described in detail.

[0037] In the present application, unless specifically defined otherwise and limited, the terms "mount", "connect", "connection", "fixed", and like terms should be understood broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection, or communication; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements, or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless specifically defined otherwise and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0039] Embodiment 1, the present application discloses a high-efficiency double-pulse disturbance flow dust settling dust collector. Referring to Figure 1 and Figure 2The utility model provides a high -efficient double pulse disturbance flow dust precipitation dust remover, which comprises a shell 1, the shell 1 is divided into the dust removal part 11 of square column shape located upper and the dust collection part 12 located below the dust removal part 11, the dust collection part 12 is square funnel, and the inner wall of dust collection part 12 is coated with high-temperature-resistant and wear-resistant coating, such as silicon carbide coating, ceramic coating and the like.The dust removal part 11 is hollow to form a clean room and a dust removal chamber, the dust collection part 12 is hollow to form a dust collection chamber, the dust removal part 11 is connected with the large-diameter end of dust collection part 12 by bolt at one end, and the port of dust collection part 12 near the one end of dust removal part 11 is larger than the port of dust removal part 11, so that the inside of shell 1 is not formed with inward converging step from top to bottom, thereby reducing the accumulation of iron powder at the connecting position.The inner wall of dust collection part 12 is provided with arc smooth transition at the connecting position of four side walls, thereby reducing the possibility of iron powder accumulation at the connecting position of side walls.The one end of dust collection part 12 near the dust removal part 11 is provided with a plurality of dust blowing assemblies 2, the plurality of dust blowing assemblies 2 can clean the inner wall of the connecting position of dust collection part 12 and dust removal part 11, avoid iron powder accumulation, improve dust removal effect and reduce safety hazard.The dust blowing assembly 2 is additionally arranged, and double pulse cleaning is realized by combining the pulse dust cleaning assembly, thereby improving the cleaning effect of iron powder.In order to ensure the cleaning effect of dust blowing assembly 2 on the inner wall of dust collection part 12, dust flows along the sedimentation surface of the side wall of dust collection part and flows out of the dust remover.The plurality of dust blowing assemblies 2 are arranged at the end of dust collection part 12.

[0040] Referring to Figure 2 And Figure 3 Each dust blowing assembly 2 comprises a nozzle 21, the nozzle 21 is communicated with a spray pipe 22, the other end of spray pipe 22 is communicated with a gas storage device 14, pulse high-pressure gas can be provided to all nozzles 21 at the same time, so that the inner wall of dust collection part 12 is cleaned by nozzle 21.The nozzle 21 is a fan-shaped column, and the nozzle 21 is coaxially arranged with the spray pipe 22.The fan-shaped wall at one end of nozzle 21 can abut against the inner wall of dust collection part 12, so as to clean the inner wall of dust collection part 12, and the fan-shaped wall at the other end of nozzle 21 is provided with a plurality of air holes 212 for the ejection of pulse high-pressure gas, thereby cleaning the iron powder on the surface of nozzle 21.

[0041] Further, referring to Figure 3 The fan-shaped wall at the end of nozzle 21 near the inner wall of dust collection part 12 is also provided with a notch 211, the notch 211 extends from the end near the dust collection part 12 to the end away from the dust collection part 12, and the notch 211 is provided so that the radius of the fan-shaped wall at the end of nozzle 21 near the inner wall of dust collection part 12 is much smaller than the radius of the fan-shaped wall at the other end.The setting of notch 211 makes the high-pressure gas output from notch 211 also clean the inner wall of dust collection part 12 at the positions on both sides of nozzle 21, further increasing the cleaning area of nozzle 21 on the inner wall of dust collection part 12.

[0042] Meanwhile, referring toFigure 2 A rubber pad 13 is arranged between the dust collecting part 12 and the dust removing part 11 to ensure the sealing between the dust collecting part 12 and the dust removing part 11. The rubber pad 13 is provided with a plurality of notches corresponding to the positions of the nozzles 22 to avoid the rubber pad 13 from hindering the connection between the gas storage device 14 and the nozzles 21, and the rubber pad 13 is in surface abutment with the nozzles 22 to ensure the sealing of the inside of the shell 1.

[0043] The implementation principle of the present embodiment 1 is that, in use, the pulse blowing ash assembly 2 is added to realize double pulse cleaning in combination with the pulse cleaning assembly, thereby improving the cleaning effect on the iron powder. The gas storage device 14 provides pulse high-pressure gas to the nozzles 21, and the gas is sprayed out from the gaps 211 and the air holes 212 to clean the inner wall of the dust collecting part 12. Since the nozzles 21 are arranged in a fan shape, the cleaning area of the high-pressure gas sprayed out by the nozzles 21 on the inner wall of the dust collecting part 12 is increased, thereby improving the cleaning effect. Meanwhile, the gaps 211 are arranged to further increase the cleaning area of the nozzles 21. In addition, the rubber pad 13 and the notches are arranged to ensure the sealing of the inside of the shell.

[0044] The embodiment 2 is different from the embodiment 1 in that, in order to further increase the cleaning range of each blowing ash assembly 2, thereby reducing the number of blowing ash assemblies 2 and further reducing the production cost of the dust remover, the specific structure of the nozzles 22 is further refined.

[0045] Reference Figure 4 and Figure 5, the nozzle 21 is fixedly connected with the fixed part 221, and the movable part 222 is in sliding and rotating connection with the fixed part 221. The fixed part 221 is coaxially sleeved outside the movable part 222, and the outer surface of the movable part 222 is provided with a sliding groove 3, which is divided into a horizontal section 31 and a rotating section 32. The rotating section 32 further includes a transition part 322 and two guide parts 321, and the two guide parts 321 are oppositely and symmetrically provided around the axis of the fixed part 221. The two guide parts 321 have an angle of about 90°, and the two guide parts 321 are in communication with the horizontal section 31 at one end close to the horizontal section 31. The other end of the two guide parts 321 is connected to the two ends of the transition part 322, respectively. The transition part 322 is located at the end of the guide part 321 away from the horizontal section 31, and the transition part 322 is arc-shaped on the surface of the fixed part 221. The middle part of the transition part 322 is farther away from the horizontal section 31 than the two ends. The transition part 322 and the two guide parts 321 are in communication to form a complete sliding groove 3. The fixed part 221 is fixedly connected with a sliding block 2211. When the sliding block 2211 slides in the horizontal section 31, the notch 211 of the nozzle 21 faces downward. When the sliding block 2211 slides in the rotating section 32, the movable part 222 slides and rotates towards the nozzle 21, and simultaneously drives the nozzle 21 to rotate around the axis of the movable part 222, thereby increasing the soot blowing range of each nozzle 21.

[0046] With reference to Figure 4 , the movable part 222 is further provided with a reset spring 4 at one end inside the fixed part 221. One end of the reset spring 4 is in rotating connection with the movable part 222, and the other end is fixedly connected with the inner wall of the fixed part 221. When the reset spring 4 is in a normal state, the sliding block 2211 is in the horizontal section 31 of the sliding groove 3, and the side wall of the nozzle 21 abuts against the side wall of the dust collecting part 12. When the movable part 222 moves towards the nozzle 21, the reset spring 4 applies a force to the movable part 222 in the opposite direction.

[0047] Further, with reference to Figure 6 , the rotating section 32 is further rotatably connected with a baffle 323 at the position connected with the horizontal section 31. The baffle 323 is provided with a V-shaped spring piece 324 at one end. When the baffle 323 rotates under the action of an external force, the spring piece 324 is compressed and deformed. When the abutting point of the baffle 323 and the spring piece 324 exceeds the vertex of the V shape, the baffle 323 is automatically turned to the other side under the action of the spring piece 324. The baffle 323 can alternately cover the end of the two guide parts 321 close to the horizontal section 31 under the action of the spring piece 324, thereby realizing the bidirectional and alternate rotation of the nozzle 21.

[0048] With reference to Figure 6The two guide portions 321 are also fixedly connected with limiting blocks 325 at positions close to the ends of the horizontal section 31. When the baffle 323 abuts against the limiting block 325 on one side, the baffle 323 is arranged to be inclined and covers the end of the guide portion 321 on the same side, so that the guide portion 321 is closed, and the inclined baffle 323 can guide the sliding block 2211 to slide along the path of the guide portion 321 on the other side.

[0049] The implementation principle of the high-efficiency double-pulse disturbance flow dust settling device according to Embodiment 2 of the present application is as follows: when the gas storage device 14 provides the pulse high-pressure gas to the nozzle 21, the pulse high-pressure gas impacts the side wall of the nozzle 21, so that the nozzle 21 drives the movable part 222 to move, and at the same time, the sliding block 2211 slides in the horizontal section 31, so that the movable part 222 moves towards the nozzle 21. When the sliding groove 3 moves with the movable part 222, the sliding block 2211 moves to the rotating section 32, the baffle 323 covers the end of the guide portion 321 on one side, and the inclined baffle 323 can guide the sliding block 2211 to slide along the path of the guide portion 321 on the other side, so that the movable part 222 rotates. The impact force of the pulse high-pressure gas on the side wall of the nozzle 21 makes the sliding block 2211 slide in the sliding groove 3, and the movable part 222 overcomes the elastic force of the return spring 4 while the sliding block 2211 passes the midpoint of the transition part 322. At this time, the nozzle 21 moves and rotates. When the sliding block 2211 exceeds the midpoint position of the transition part 322, the impact force of the pulse high-pressure gas on the side wall of the nozzle 21 decreases, at this time, the movable part 222 moves away from the nozzle 21, and at the same time, the sliding block 2211 enters the closed guide portion 321 through the transition part 322, and the sliding block 2211 pushes the baffle 323 under the action of the elastic force of the return spring 4, so that the baffle 323 rotates to the end of the guide portion 321 on the other side to close it. Due to the alternate closing of the guide portion 321, when the next pulse high-pressure gas is generated, the sliding direction of the sliding block 2211 in the sliding groove 3 is opposite to the sliding direction of the last time, so as to ensure the cleaning effect of the nozzle 21 on the iron powder on both sides. The rotation of the nozzle 21 makes the cleaning range of each nozzle 21 expand, so as to ensure the cleaning effect while reducing the number of dust blowing assemblies 2, thereby saving production costs.

[0050] The embodiment of the present application has the effect of reducing the accumulation of oxide scales or iron powder at the connection position of the dust collecting part 12 and the dust removing part 11, reducing the possibility of self-ignition of the iron powder, and improving safety.

[0051] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A high efficiency dual pulse vortex precipitator characterized by: The utility model provides a dust removal device, including shell (1), shell (1) includes the dust removal part (11) of being located above and the dust collection part (12) of being located below dust removal part (11), and the dust removal part (11) is hollow and forms clean room and dust removal chamber inside, and the dust collection part (12) is hollow and forms dust collection chamber inside, and dust removal part (11) is bolted with dust collection part (12), and the port of dust collection part (12) near the dust removal part (11) one end is greater than the port of dust removal part (11), and the dust collection part (12) near the dust removal part (11) one end is provided with a plurality of blowing ash subassembly (2), and each blowing ash subassembly (2) includes nozzle (21), and the nozzle (21) is communicated with spray pipe (22), and the other end of spray pipe (22) is communicated with gas storage device (14), and the nozzle (21) can clean the iron powder on the inner wall at the connecting position of dust collection part (12) and dust removal part (11), and the inner wall at the connecting position of adjacent side wall of dust collection part (12) is provided as arc, realizes the smooth transition between adjacent side wall, The spray pipe (22) includes a fixed portion (221) and a movable portion (222), the movable portion (222) is connected with the nozzle (21), and the fixed portion (221) is coaxially sleeved outside the movable portion (222), and the movable portion (222) can drive the nozzle (21) to rotate around the axis of the movable portion (222); The outer surface of the movable portion (222) is provided with a sliding groove (3), and the sliding groove (3) is divided into a horizontal section (31) and a rotating section (32), the rotating section (32) includes a transition portion (322) and two guide portions (321), the two guide portions (321) are oppositely and spirally symmetrical with respect to the axis of the fixed portion (221), and the two guide portions (321) are communicated with the horizontal section (31) at one end close to the horizontal section (31) and connected to the two ends of the transition portion (322) at the other end respectively; the fixed portion (221) is provided with a sliding block (2211), and when the movable portion (222) moves, the sliding block (2211) slides in the sliding groove (3), so that the movable portion (222) drives the nozzle (21) to rotate; The movable portion (222) is provided with a reset spring (4), and when the sliding block (2211) slides in the rotating section (32), the reset spring (4) provides a force to the movable portion (222) close to the fixed portion (221); The rotating section (32) is rotationally connected with a baffle (323), one end of the baffle (323) is abutted with a V-shaped spring piece (324), and the baffle (323) is compressed when rotating under the action of an external force, so that the spring piece (324) is deformed, and when the abutment point of the baffle (323) and the spring piece (324) exceeds the vertex of the V shape, the baffle (323) is automatically turned to the other side under the action of the spring piece (324), and the baffle (323) is alternatively covered on the end portions of the two guide portions (321) close to the horizontal section (31). Two said guide parts (321) are provided with limiting blocks (325) near the end positions of the horizontal section (31), the baffle (323) can abut against the limiting block (325), when the baffle (323) abuts against the limiting block (325), the baffle (323) is obliquely arranged.

2. The high efficiency dual pulse vortex dirt precipitator of claim 1, wherein: The nozzle (21) is a fan-shaped cylinder, the nozzle (21) is coaxially arranged with the spray pipe (22), and the fan-shaped wall at one end of the nozzle (21) can abut against the inner wall of the dust collecting part (12), and the fan-shaped wall at the other end is provided with a plurality of air holes (212).

3. The high efficiency dual pulse vortex dirt precipitator of claim 1, wherein: The nozzle (21) is provided with a notch (211) at the fan-shaped wall of one end near the inner wall of the dust collecting part (12), and the notch (211) extends to a position away from one end of the dust collecting part (12).

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