Double-gas-path alternate light microparticle compact bag type dust collector

Abstract

The invention relates to the technical field of dust removal equipment, in particular to a double-gas-path alternate light microparticle compact bag type dust remover which comprises a box body, a top plate is fixedly connected to the box body, a partition plate is fixedly connected to the interior of the box body, two dust hoppers are fixedly connected to the lower portion of the box body, and two dust removal mechanisms are symmetrically arranged on the box body. Two air inlet pipes are symmetrically and fixedly connected to the lower side of the box body, a first three-way valve is connected between the two air inlet pipes, a dust and air conveying pipe is further connected to the first three-way valve, a high-pressure air tank is arranged on the top plate, and two ash removing mechanisms are further symmetrically arranged in the box body. And the ash removal mechanism is connected with the high-pressure gas tank through a pushing mechanism. According to the dust removal device, through the arrangement of the first three-way valve, the conveying direction of dust-containing gas can be changed, and different dust removal mechanisms are switched for filtering work, so that normal dust filtration is not affected when the dust filtration bag is cleaned and replaced, and the dust filtration efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, in particular to a compact bag dust collector with double air paths alternating lightweight micro particles. Background Art

[0002] The bag filter is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and uses the filtering effect of fiber fabric to filter the dust-containing gas. When the dust-containing gas enters the bag filter, the large particles and heavy dust settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified.

[0003] Bag dust collectors in the prior art mostly use a pulse recoil method to clean the dust filter bags. During the cleaning process, the bag dust collector cannot filter dust, which reduces the dust filtering efficiency. In addition, the dust filter bags will swell during the cleaning process, and the mesh holes of the dust filter bags will also expand, reducing the service life of the dust filter bags. Summary of the invention

[0004] The purpose of the present invention is to provide a compact bag dust collector with alternating dual air paths and lightweight micro particles to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: A dual-air-path alternating lightweight micro-particle compact bag dust collector comprises a box body, a top plate is fixedly connected to the box body, a partition plate is fixedly connected in the box body, two ash hoppers are fixedly connected below the box body, two dust removal mechanisms are symmetrically arranged on the box body, two air inlet pipes are symmetrically fixedly connected to the lower side of the box body, a three-way valve 1 is connected between the two air inlet pipes, a dust and gas conveying pipe is also connected to the three-way valve 1, a high-pressure gas tank is arranged on the top plate, and two cleaning mechanisms are symmetrically arranged in the box body, the cleaning mechanisms are connected to the high-pressure gas tank via a pushing mechanism, and the pushing mechanism is connected to the three-way valve 1.

[0005] Preferably, the dust removal mechanism includes telescopic rods symmetrically arranged on both sides of the box body, the telescopic rods are fixedly connected to side panels, the side panels are fixedly connected to mounting plates, nine mounting holes are evenly opened on the mounting plate, a filter bag frame is fixedly connected in the mounting holes, a dust filter bag is slidably sleeved on the filter bag frame, and a clamping assembly for fixing the dust filter bag is also provided on the mounting plate.

[0006] Preferably, the clamping assembly includes two groups of belt transmission assemblies symmetrically arranged at the lower end of the mounting plate, the belt transmission assembly 1 includes three evenly arranged pulleys 1, and the corresponding two pulleys 1 are located at both ends of the single-row filter bag frame. The mounting plate is also slidably connected with three mounting brackets, and the mounting brackets correspond to the positions of the single-row filter bag frame. The mounting brackets are slidably connected with three clamping parts, and the clamping parts correspond to the positions of the filter bag frame. Guide rods are provided at both ends of the mounting brackets, and an eccentric annular groove is opened on the pulley 1, and the guide rods are slidably connected in adjacent eccentric annular grooves.

[0007] Preferably, a pulley 2 is provided between adjacent pulleys 1, a belt is connected to the pulleys 1 and 2 on the same side, the two corresponding pulleys 2 are fixedly connected to the same rotating shaft, a rotating handle is rotatably connected to the side panel, and the rotating handle is fixedly connected to the rotating shaft of one of the pulleys 1.

[0008] Preferably, the clamping component includes a clamping block slidably connected to the mounting bracket, two symmetrical clamping blocks are located on both sides of the filter bag frame, a spring 1 is connected between the two symmetrical clamping blocks, two limit rods are symmetrically slidably connected to the clamping block, two baffles are symmetrically fixedly connected to the clamping block, a spring 2 is connected between the limit rod and the baffle, four limit holes are evenly opened around the mounting hole on the mounting plate, and the limit rod is slidably inserted into the limit hole.

[0009] Preferably, the cleaning mechanism includes four guide rods evenly arranged on the inner side surface of the box body, and a lifting bracket is slidably connected to the guide rod on the same side, and three cleaning components are evenly arranged on the lifting bracket, and each of the cleaning components includes two symmetrically arranged cleaning parts, and the cleaning parts include a sliding bracket, which is slidably connected to the lifting bracket, and three semicircular brushes corresponding to the position of the filter bag frame are evenly arranged on the sliding bracket, and long plates are provided at both ends of the sliding bracket, and the long plates are fixedly connected to the box body, and parallelogram guide grooves are opened on the long plates, and the ends of the sliding brackets are slidably connected in the parallelogram guide grooves.

[0010] Preferably, the sliding bracket is evenly provided with three semicircular grooves, the semicircular brush is slidably connected to the semicircular grooves, the outer side of the semicircular brush is provided with a tooth surface, and the sliding bracket is evenly slidably connected with three racks, the racks are meshed with adjacent tooth surfaces, and the three racks are fixedly connected with a push rod, and two complementary wavy guide plates are fixedly connected to the two symmetrical long plates, and the push rod will abut against the wavy guide plate during the descent process.

[0011] Preferably, the pushing mechanism includes a base support arranged below the lifting bracket, the base support is fixedly connected to the box body, an inflatable telescopic tube is connected between the base support and the lifting bracket, two base support brackets are connected by a pipeline, one of the base supports is connected to the interface of three-way valve 2 through a pipeline, the high-pressure gas tank is connected to another interface of three-way valve 2 through a pipeline, and the last interface of three-way valve 2 is connected to an exhaust pipe.

[0012] Preferably, the valve cores of the two three-way valves 2 are connected to the valve core of the three-way valve 1 through a belt transmission component 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by setting a three-way valve, the direction of dust-containing gas transportation can be changed, and different dust removal mechanisms can be switched to perform filtering work, so that cleaning and replacing the dust filter bag will not affect normal dust filtering, thereby ensuring the efficiency of dust filtering.

[0014] 2. In the present invention, by providing a cleaning mechanism, the dust adsorbed on the surface of the dust filter bag can be cleaned by a semicircular brush, and during the cleaning process, the semicircular brush can also rotate back and forth, thereby further improving the cleaning effect. The brush cleaning method will not cause the mesh holes of the dust filter bag to expand, and can effectively ensure the service life of the dust filter bag.

[0015] 3. In the present invention, the clamping mechanism is set up, and the clamping of all dust filter bags can be released at one time by rotating the handle, which saves the time of removing the dust filter bags. At the same time, the new dust filter bag can be fixed by engaging the clamping block, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a structural schematic diagram of the dust removal mechanism in the present invention; Figure 4 It is a schematic diagram of the structure of the clamping assembly in the present invention; Figure 5 The structure of the dust removal mechanism in the present invention is shown in FIG. Figure 1 ; Figure 6 The structure of the dust removal mechanism in the present invention is shown in FIG. Figure 2 ; Figure 7 The structure of the dust removal mechanism in the present invention is shown in FIG. Figure 3 ; Figure 8 It is a structural schematic diagram of the pushing mechanism in the present invention.

[0017] In the figure: 1, box body; 2, top plate; 3, partition plate; 4, ash hopper; 5, dust removal mechanism; 501, telescopic rod; 502, side plate; 503, mounting plate; 504, mounting hole; 505, filter bag frame; 506, dust filter bag; 51, clamping assembly; 5101, belt transmission assembly 1; 51011, pulley 1; 51012, eccentric ring groove; 51013, pulley 2; 51014, belt; 5102, mounting bracket; 5103, clamping component; 51031, clamping block; 51032, spring 1; 51033, limit rod; 51034, baffle; 51035, spring 2; 51036, limit hole; 5104, guide rod; 5105 , turning handle; 6. air inlet pipe; 7. three-way valve one; 8. dust and gas conveying pipe; 9. high-pressure gas tank; 10. dust cleaning mechanism; 1001. guide rod; 1002. lifting bracket; 101. cleaning component; 102. cleaning parts; 10201. sliding bracket; 10202. semicircular brush; 10203. long board; 10204. parallelogram guide groove; 10205. semicircular slide groove; 10206. tooth surface; 10207. rack; 10208. push rod; 10209. wavy guide plate; 11. pushing mechanism; 1101. bottom support; 1102. inflatable telescopic tube; 1103. three-way valve two; 1104. exhaust pipe; 12. belt drive component two. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 8 , the present invention provides a technical solution: A compact bag dust collector with alternating dual air paths and lightweight micro-particles comprises a box body 1, to which a top plate 2 is fixedly connected, a partition plate 3 is fixedly connected in the box body 1, two ash hoppers 4 are fixedly connected below the box body 1, two dust removal mechanisms 5 are symmetrically arranged on the box body 1, two air inlet pipes 6 are symmetrically fixedly connected on the lower side of the box body 1, a three-way valve 7 is connected between the two air inlet pipes 6, a dust gas conveying pipe 8 is also connected to the three-way valve 7, a high-pressure gas tank 9 is arranged on the top plate 2, and two cleaning mechanisms 10 are symmetrically arranged in the box body 1, the cleaning mechanism 10 is connected to the high-pressure gas tank 9 via a pushing mechanism 11, and the pushing mechanism 11 is connected to the three-way valve 7.

[0020] In this embodiment, the dust removal mechanism 5 includes a telescopic rod 501 symmetrically arranged on both sides of the box body 1, the telescopic rod 501 is fixedly connected to a side panel 502, the side panel 502 is fixedly connected to a mounting plate 503, nine mounting holes 504 are evenly opened on the mounting plate 503, a filter bag frame 505 is fixedly connected in the mounting holes 504, a dust filter bag 506 is slidably sleeved on the filter bag frame 505, and a clamping assembly 51 for fixing the dust filter bag 506 is also provided on the mounting plate 503.

[0021] In this embodiment, the clamping assembly 51 includes two groups of belt transmission assemblies 5101 symmetrically arranged at the lower end of the mounting plate 503, the belt transmission assembly 5101 includes three evenly arranged pulleys 51011, and the corresponding two pulleys 51011 are located at both ends of the single-row filter bag frame 505. The mounting plate 503 is also slidably connected with three mounting brackets 5102, and the mounting brackets 5102 correspond to the positions of the single-row filter bag frame 505. The mounting brackets 5102 are slidably connected with three clamping components 5103, and the clamping components 5103 correspond to the positions of the filter bag frame 505. Guide rods 5104 are provided at both ends of the mounting bracket 5102, and eccentric annular grooves 51012 are opened on the pulleys 51011, and the guide rods 5104 are slidably connected in adjacent eccentric annular grooves 51012.

[0022] In this embodiment, a pulley 2 51013 is provided between adjacent pulleys 1 51011, and a belt 51014 is connected to the pulley 1 51011 and the pulley 2 51013 on the same side. The two corresponding pulleys 2 51013 are fixedly connected to the same rotating shaft, and a rotating handle 5105 is rotatably connected to the side panel 502, and the rotating handle 5105 is fixedly connected to the rotating shaft of one of the pulleys 1 51011.

[0023] In this embodiment, the clamping component 5103 includes a clamping block 51031 slidably connected to the mounting bracket 5102, and two symmetrical clamping blocks 51031 are located on both sides of the filter bag frame 505. A spring 1 51032 is connected between the two symmetrical clamping blocks 51031. Two limiting rods 51033 are symmetrically slidably connected to the clamping block 51031. Two baffles 51034 are symmetrically fixedly connected to the clamping block 51031. A spring 2 51035 is connected between the limiting rod 51033 and the baffle 51034. Four limiting holes 51036 are evenly opened around the mounting hole 504 on the mounting plate 503, and the limiting rod 51033 is slidably inserted into the limiting hole 51036.

[0024] In this embodiment, the cleaning mechanism 10 includes four guide rods 1001 evenly arranged on the inner side of the box body 1, and a lifting bracket 1002 is slidably connected to the guide rod 1001 on the same side. Three cleaning components 101 are evenly arranged on the lifting bracket 1002, and each of the cleaning components 101 includes two symmetrically arranged cleaning parts 102, and the cleaning parts 102 include a sliding bracket 10201, and the sliding bracket 10201 is slidably connected to the lifting bracket 1002. Three semicircular brushes 10202 corresponding to the position of the filter bag frame 505 are evenly arranged on the sliding bracket 10201, and long plates 10203 are provided at both ends of the sliding bracket 10201. The long plates 10203 are fixedly connected to the box body 1, and parallelogram guide grooves 10204 are opened on the long plates 10203. The ends of the sliding bracket 10201 are slidably connected in the parallelogram guide grooves 10204.

[0025] In this embodiment, three semicircular grooves 10205 are evenly arranged on the sliding bracket 10201, the semicircular brush 10202 is slidably connected to the semicircular groove 10205, the outer side surface of the semicircular brush 10202 is provided with a tooth surface 10206, and three racks 10207 are evenly slidably connected to the sliding bracket 10201. The racks 10207 are meshed with adjacent tooth surfaces 10206, and the three racks 10207 are fixedly connected with a push rod 10208. Two complementary wavy guide plates 10209 are fixedly connected to the two symmetrical long plates 10203, and the push rod 10208 will abut against the wavy guide plate 10209 during the descent process.

[0026] In this embodiment, the pushing mechanism 11 includes a base support 1101 arranged below the lifting bracket 1002, the base support 1101 is fixedly connected to the box body 1, an inflatable telescopic tube 1102 is connected between the base support 1101 and the lifting bracket 1002, the two base supports 1101 are connected by a pipeline, one of the base supports 1101 is connected to the interface of the three-way valve 1103 through a pipeline, the high-pressure gas tank 9 is connected to the other interface of the three-way valve 1103 through a pipeline, and the last interface of the three-way valve 1103 is connected to the exhaust pipe 1104.

[0027] In this embodiment, a counterweight block can be installed on the lifting bracket 1002 to ensure that the lifting bracket 1002 and the components thereon can overcome the resistance of the semicircular brush 10202 during cleaning and move downward smoothly. At the same time, the outlet diameter of the exhaust pipe 1104 is small, which can effectively slow down the discharge speed of the air in the inflatable telescopic tube 1102, thereby controlling the descending speed of the lifting bracket 1002 not to be too fast.

[0028] In this embodiment, the valve cores of the two three-way valves 1103 are connected to the valve core of the three-way valve 1 7 via a belt transmission assembly 2 12 .

[0029] In this embodiment, a high-pressure pulse recoil pipe connected to the high-pressure gas tank 9 can be provided on the upper part of the box body 1. After multiple brush cleanings, the dust filter bag 506 can be cleaned more thoroughly by pulse recoil.

[0030] The working process of this dual-air-path alternating lightweight micro-particle compact bag dust collector is as follows: S1. Dust-containing gas is transported from the dust gas transport pipe 8 into the device. The dust-containing gas enters the box body 1 from the air inlet pipe 6 on one side through the three-way valve 7. The dust in the dust-containing gas is filtered by the dust filter bag 506, and the clean gas is discharged from the opening above the device; S2. After filtering for a period of time, the dust filter bag 506 is clogged with dust and the filtering efficiency decreases. At this time, the valve core of the three-way valve 7 is turned to allow the dust-containing gas to enter the box body 1 from the air inlet pipe 6 on the other side and be filtered by the dust filter bag 506 in the other dust removal mechanism 5; When the valve core of the three-way valve 1 7 rotates, the valve core of the three-way valve 2 1103 is driven to rotate through the belt drive assembly 2 12, so that the inflation telescopic tube 1102 on the dust filter side is connected with the exhaust pipe 1104, and now the inflation telescopic tube 1102 on the dust filter side is connected with the high-pressure gas tank 9; When the inflatable telescopic tube 1102 is connected to the high-pressure gas tank 9, high-pressure air enters the inflatable telescopic tube 1102 through the pipeline, pushing the lifting bracket 1002 and the components thereon to move upward and remain motionless after reaching the top. Due to the guidance of the parallelogram guide groove 10204, the two semicircular brushes 10202 will move closer to each other when they are about to move to the top, and finally form a ring-shaped brush, the bristles of the brush will abut against the surface of the dust filter bag 506, and the top rod 10208 will also move to a position aligned with the wavy guide plate 10209; When the inflatable telescopic tube 1102 is connected to the exhaust pipe 1104, the lifting bracket 1002 and the components connected thereto will move downward and to the bottom under the action of gravity. When the top rod 10208 abuts against the wavy guide plate 10209, the rack 10207 will be driven to slide back and forth, and the rack 10207 will drive the semicircular brush 10202 to rotate back and forth, thereby enhancing the cleaning effect. S3, after filtering for a period of time, when the dust filter bag 506 is clogged with dust again, the valve core of the three-way valve 7 is turned back, and the dust filter bag 506 that has been cleaned is used for dust filtering; S4. When the dust filter bag 506 needs to be replaced after being used for a long time, the cleaning mechanism 10 is pushed out of the housing 1 through the telescopic rod 501, and then the rotating handle 5105 is rotated one circle. All the pulleys 51011 will rotate one circle, and under the drive of the eccentric ring groove 51012, the mounting bracket 5102 will move down and then reset. The downward movement of the mounting bracket 5102 will cause the limiting rod 51033 to slide out of the limiting hole 51036, so that all the clamping blocks 51031 are separated under the elastic force of the spring 51032, loosening the clamping of the dust filter bag 506, making it convenient to remove the dust filter bag 506. Whenever a new dust filter bag 506 is installed, the clamping blocks 51031 can be pinched to clamp the dust filter bag 506. After all replacements are completed, the cleaning mechanism 10 is sent into the housing 1 to filter dust again.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A compact bag dust collector with alternating dual air paths and lightweight micro particles, comprising a housing (1), characterized in that: The box body (1) is fixedly connected to a top plate (2), the box body (1) is fixedly connected to a partition plate (3), the box body (1) is fixedly connected to two ash hoppers (4) below the box body (1), two dust removal mechanisms (5) are symmetrically arranged on the box body (1), two air inlet pipes (6) are symmetrically fixedly connected to the lower side of the box body (1), a three-way valve (7) is connected between the two air inlet pipes (6), and a dust gas conveying pipe (8) is also connected to the three-way valve (7), a high-pressure gas tank (9) is arranged on the top plate (2), and two dust cleaning mechanisms (10) are symmetrically arranged in the box body (1), the dust cleaning mechanisms (10) are connected to the high-pressure gas tank (9) via a pushing mechanism (11), and the pushing mechanism (11) is connected to the three-way valve (7).

2. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 1 is characterized by: The dust removal mechanism (5) comprises telescopic rods (501) symmetrically arranged on both sides of the box body (1); the telescopic rods (501) are fixedly connected to side panels (502); the side panels (502) are fixedly connected to mounting plates (503); nine mounting holes (504) are evenly formed on the mounting plate (503); a filter bag frame (505) is fixedly connected to the mounting holes (504); a dust filter bag (506) is slidably sleeved on the filter bag frame (505); and a clamping assembly (51) for fixing the dust filter bag (506) is also provided on the mounting plate (503).

3. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 2 is characterized by: The clamping assembly (51) comprises two groups of belt transmission assemblies (5101) symmetrically arranged at the lower end of the mounting plate (503), the belt transmission assembly (5101) comprising three evenly arranged pulleys (51011), the two corresponding pulleys (51011) being located at the two ends of the single-row filter bag frame (505), the mounting plate (503) being further slidably connected with three mounting brackets (5102), the mounting brackets (5102) corresponding to the positions of the single-row filter bag frame (505), the mounting brackets (5102) being slidably connected with three clamping components (5103), the clamping components (5103) corresponding to the positions of the filter bag frame (505), guide rods (5104) being provided at both ends of the mounting bracket (5102), the pulleys (51011) being provided with eccentric annular grooves (51012), the guide rods (5104) being slidably connected in adjacent eccentric annular grooves (51012); A pulley 2 (51013) is provided between adjacent pulleys 1 (51011), and a belt (51014) is connected to the pulleys 1 (51011) and 2 (51013) on the same side. The two corresponding pulleys 2 (51013) are fixedly connected to the same rotating shaft, and a rotating handle (5105) is rotatably connected to the side plate (502), and the rotating handle (5105) is fixedly connected to the rotating shaft of one of the pulleys 1 (51011).

4. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 3 is characterized by: The clamping component (5103) comprises a clamping block (51031) slidably connected to the mounting bracket (5102), two symmetrical clamping blocks (51031) are located on both sides of the filter bag frame (505), a spring 1 (51032) is connected between the two symmetrical clamping blocks (51031), two limiting rods (51033) are symmetrically slidably connected to the clamping block (51031), two baffles (51034) are symmetrically fixedly connected to the clamping block (51031), a spring 2 (51035) is connected between the limiting rod (51033) and the baffle (51034), four limiting holes (51036) are evenly opened around the mounting hole (504) on the mounting plate (503), and the limiting rod (51033) is slidably inserted into the limiting hole (51036).

5. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 1 is characterized by: The dust cleaning mechanism (10) comprises four guide rods (1001) evenly arranged on the inner side of the box body (1); a lifting bracket (1002) is slidably connected to the guide rods (1001) on the same side; three cleaning components (101) are evenly arranged on the lifting bracket (1002); each cleaning component (101) comprises two symmetrically arranged cleaning parts (102); the cleaning parts (102) comprise a sliding bracket (10201); the sliding bracket (10201) is slidably connected to the lifting bracket (1002); On the descending bracket (1002), three semicircular brushes (10202) corresponding to the positions of the filter bag frame (505) are evenly arranged on the sliding bracket (10201), long plates (10203) are arranged at both ends of the sliding bracket (10201), the long plates (10203) are fixedly connected to the box body (1), and parallelogram guide grooves (10204) are opened on the long plates (10203), and the ends of the sliding bracket (10201) are slidably connected in the parallelogram guide grooves (10204).

6. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 5 is characterized by: The sliding bracket (10201) is evenly provided with three semicircular grooves (10205), the semicircular brush (10202) is slidably connected to the semicircular grooves (10205), the outer side surface of the semicircular brush (10202) is provided with a tooth surface (10206), the sliding bracket (10201) is evenly slidably connected with three racks (10207), the racks (10207) are meshed with adjacent tooth surfaces (10206), the three racks (10207) are fixedly connected with a push rod (10208), the two symmetrical long plates (10203) are fixedly connected with two complementary wavy guide plates (10209), and the push rod (10208) will abut against the wavy guide plate (10209) during the descending process.

7. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 6 is characterized by: The pushing mechanism (11) comprises a base (1101) arranged below the lifting bracket (1002); the base (1101) is fixedly connected to the box body (1); an inflatable telescopic tube (1102) is connected between the base (1101) and the lifting bracket (1002); two bases (1101) are connected via a pipeline; one of the bases (1101) is connected to an interface of a second three-way valve (1103) via a pipeline; the high-pressure gas tank (9) is connected to another interface of the second three-way valve (1103) via a pipeline; and an exhaust pipe (1104) is connected to the last interface of the second three-way valve (1103).

8. The double-air-path alternating lightweight micro-particle compact bag dust collector according to claim 7 is characterized by: The valve cores of the two three-way valves 2 (1103) are connected to the valve core of the three-way valve 1 (7) via a belt transmission assembly 2 (12).

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