Dust recycling device

Abstract

The invention relates to the technical field of dust removal equipment, in particular to a dust recycling device which comprises a dust removal box, an upper box is fixedly mounted at the top of the dust removal box, a dust hopper is fixedly mounted at the bottom of the dust removal box, a dust discharge assembly is arranged at the bottom of the dust hopper, and an air outlet pipe is fixedly mounted on one side of the upper box. A dust gas inlet pipe is fixedly mounted on one side of the dust hopper, and a plurality of dust removal assemblies are fixedly mounted at the bottom of the upper box body and extend into the dust removal box body; through the arrangement of the supporting assembly, the weight detection assembly and the pushing assembly, dust particles attached to the outer portion of the filter bag can be promoted to be completely separated in cooperation with blowing in the twisting and contracting process and the reverse twisting unfolding and opening process of the filter bag, and the subsequent dust removal effect of the filter bag and complete recovery of dust are effectively guaranteed; the problem that the caked dust cannot be blown off due to the fact that the dust is caked and adhered to the outer side of the filter bag due to water or oil during filtering is avoided, and the influence on the subsequent filtering effect of the filter bag is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, and in particular to a dust recovery and recycling device. Background Art

[0002] The dust recovery and reuse device is mainly used to reduce dust emissions in industrial production processes, protect the environment, and realize resource recycling. Conventional waste gas treatment measures generally use pneumatic conveying to transport waste gas to bag dust removal devices for dust treatment.

[0003] Bag filter: The dust in the dust-laden gas is filtered out through the filter bag, and the cleaned gas is discharged into the atmosphere, while the collected dust can be subsequently processed and utilized.

[0004] A uniform filtering bag dust collector is disclosed in Chinese patent publication number CN117839334B. The uniform filtering bag dust collector is designed to adjust the flow rate of dust gas when passing through an adjustable flow channel. The dust gas after speed adjustment can be directly sprayed to cage bag filter elements in different columns, so that the cage bag filter elements close to or far away from the diverter can contact the dust gas at the first time, thereby achieving efficient and uniform filtration of dust gas by all cage bag filter elements, thereby improving the filtration effect of the entire dust collector.

[0005] However, compared with the existing technologies in related fields, due to the complex working conditions inside the factory, the dust or impurities contain moisture or oil. During filtration, the moisture or oil will cause the dust to clump and adhere to the outside of the filter bag. Simply using pulse jetting cannot blow away the agglomerated dust, which will affect the subsequent filtration effect of the filter bag. At the same time, due to the different types of ore, the dust particles generated when the ore is crushed and ground are also different. Therefore, some larger dust particles attached to the filter bag will be cleaned by pulses, but some smaller dust particles will adhere to the gaps in the filter bag, which cannot be completely cleaned by pulses alone. In addition, since the air generated by the pulse will gradually weaken from the top of the filter bag to the bottom, the pulse bag of the pulse bag dust collector is prone to blockage after a long period of dust treatment, especially near the bottom, and if it is not cleaned in time, it will affect the subsequent filtration effect. Summary of the invention

[0006] The present invention provides a dust recovery and recycling device to solve the problems mentioned in the background technology.

[0007] A dust recovery and reuse device of the present invention adopts the following technical scheme: it includes a dust removal box, an upper box body is fixedly installed on the top of the dust removal box, an ash hopper is fixedly installed on the bottom of the dust removal box, an ash discharge assembly is provided at the bottom of the ash hopper, an air outlet pipe is fixedly installed on one side of the upper box body, a dust air inlet pipe is fixedly installed on one side of the ash hopper, a plurality of dust removal assemblies are fixedly installed on the bottom of the upper box body, the plurality of dust removal assemblies all extend to the interior of the dust removal box body, a pulse assembly for spraying airflow into the interior of the plurality of dust removal assemblies is fixedly installed inside the upper box body; the dust removal assembly includes a mounting piece fixedly installed on the bottom of the upper box body, a filter bag is fixedly installed on the bottom of the mounting piece, a support assembly for controlling the deformation of the filter bag is provided inside the mounting piece, when a certain amount of dust is attached to the surface of the filter bag, the support assembly will cause the area connected to the filter bag to shrink, and when a large amount of dust is attached to the surface of the filter bag, the support assembly will cause the area connected to the filter bag to twist.

[0008] Furthermore, the support assembly includes an outer cylinder fixedly installed at the inner center of the mounting piece, and a plurality of movable frames are rotatably provided on the outer surface of the outer cylinder, and gears are rotatably provided inside the plurality of movable frames, and a support rod is fixedly installed on the outer surface of the gear, and a connecting rod is hinged at the end of the support rod away from the gear, and the connecting rod is fixedly installed on the inner wall of the filter bag, and a weight detection assembly for detecting the weight of the filter bag is provided inside the outer cylinder, and the weight detection assembly is used to control the synchronous rotation of multiple gears. When a certain amount of dust is attached to the surface of the filter bag, the weight detection assembly will sink with the deformation of the filter bag, so that when the weight detection assembly sinks, it will control the rotation of multiple gears, and then the support rod will control the contraction of the filter bag through the connecting rod, and the outer cylinder is provided with a pushing assembly at the positions corresponding to the plurality of gears. When a large amount of dust is attached to the surface of the filter bag, the pushing assembly is used to control the gear to drive the movable frame to deflect, so that the support rod can control the twisting of the filter bag through the connecting rod.

[0009] Furthermore, the cross-section of the outer cylinder is polygonal, and each face of the polygonal outer cylinder is rotatably provided with a movable frame, multiple movable frames are linearly arrayed on the outer cylinder along the extension direction of the outer cylinder, the movable frame radially rotates on the outer cylinder, and the gear axially rotates inside the movable frame.

[0010] Furthermore, the weight detection component includes a gear shaft slidably arranged at the center of the outer cylinder, the gear shaft is in the shape of a cylinder, and multiple gears are meshed with the gear shaft. A connecting frame is fixedly installed on the bottom end of the gear shaft, and the connecting frame is fixedly installed on the bottom surface of the filter bag. A cylinder cover is fixedly installed on the top of the outer cylinder, and the top end of the gear shaft and the cylinder cover are connected by an elastic member.

[0011] Furthermore, the push assembly includes a fixed block fixedly mounted on the surface of the outer cylinder, a push rod is fixedly provided on the side of the fixed block close to the gear, and an arc-shaped groove and a slope are opened at the position of the gear corresponding to the push rod. When the push rod contacts the slope, the gear will drive the movable frame to twist.

[0012] Furthermore, two upper and lower adjacent push rods are staggeredly arranged at both ends of the gear, so that when the push rods come into contact with the slope, the torsion directions of the two upper and lower adjacent movable frames are opposite.

[0013] Furthermore, pins are fixedly provided at the top and bottom of the movable frame, and first rotating holes are provided at positions of the outer cylinder corresponding to the pins, and the pins are matched and connected with the first rotating holes through bearings.

[0014] Furthermore, a rotating shaft is fixedly provided at both ends of the gear, a second rotating hole is opened at a position of the movable frame corresponding to the rotating shaft, and the rotating shaft is matched and connected with the second rotating hole through a bearing.

[0015] Furthermore, the pulse assembly includes a gas tank fixedly mounted on the outside of the upper box body, a plurality of blowing pipes are fixedly provided on the outer surface of the gas tank, the plurality of blowing pipes all extend to the interior of the upper box body, and a Venturi tube is fixedly provided at the openings of the plurality of blowing pipes corresponding to the plurality of dust removal assemblies.

[0016] Furthermore, the ash discharge assembly includes an ash discharge pipe fixedly installed at the bottom of the ash hopper, and a solenoid valve is provided on the ash discharge pipe.

[0017] The beneficial effects of the present invention are as follows: by arranging a supporting component, a weight detection component and a pushing component, when a certain weight of dust is attached to the outside of the filter bag, the weight of the filter bag will gradually become heavier, and then the weight detection component can be used to detect the weight of the filter bag. When the filter bag continues to sink due to the attachment of dust, firstly, the shape of the filter bag can be changed by pulling, so that most of the dust particles attached to the outside of the filter bag will automatically fall off, and at the same time, some dust attached to the inside of the gap of the filter bag will be squeezed out; secondly, the filter bag can be twisted to a certain extent, and the twisting of the filter bag can again cause most of the dust particles attached to the outside to fall off; thirdly, after the filter bag is sprayed, the filter bag will undergo a process of reverse twisting, unfolding and stretching, so that the particulate matter attached to its surface can fall off again, and the dust particles attached to the outside of the filter bag can be completely detached in conjunction with the blowing, effectively ensuring the subsequent dust removal effect of the filter bag and the complete recovery of the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0019] FIG1 is a cross-sectional view of a dust removal box, an upper box and an ash hopper of the present invention; FIG2 is a schematic diagram of the first axial side of the filter bag of the present invention when no dust is attached to the surface of the filter bag; FIG3 is a schematic diagram of the second axial side of the filter bag of the present invention when no dust is attached to the surface of the filter bag; FIG4 is a schematic structural diagram of a support assembly of the present invention; FIG5 is a schematic diagram of the structure of a weight detection assembly of the present invention; FIG6 is a schematic diagram of the first axis side of the support assembly when the gear shaft drives the gear to rotate according to the present invention; FIG7 is a schematic diagram of the second axial side of the support assembly when the gear shaft drives the gear to rotate according to the present invention; FIG8 is a schematic diagram of the first axis side of the support assembly when the gear drives the movable frame to deflect according to the present invention; FIG9 is a schematic diagram of the second axial side of the support assembly when the gear drives the movable frame to deflect according to the present invention; FIG10 is a schematic diagram of the meshing state of the gear and the gear shaft of the present invention; FIG11 is a schematic diagram of the state of the gear and the movable frame when the push rod of the present invention is inside the arc-shaped groove; Fig.12 It is a schematic diagram of the state of the gear and the movable frame when the push rod of the present invention is inside the slope.

[0020] In the figure: 1. dust removal box; 2. upper box; 201. air outlet pipe; 3. ash hopper; 301. dust air inlet pipe; 4. ash discharge assembly; 401. ash discharge pipe; 402. solenoid valve; 5. dust removal assembly; 501. mounting part; 502. filter bag; 6. pulse assembly; 601. gas tank; 602. injection pipe; 603. venturi; 7. support assembly; 701. outer cylinder; 702. movable frame; 7021. pin shaft; 703. gear; 7031. rotating shaft; 704. support rod; 705. connecting rod; 706. cylinder cover; 8. weight detection assembly; 801. gear shaft; 802. connecting frame; 803. elastic member; 9. push assembly; 901. fixing block; 902. push rod; 903. arc groove; 904. slope. DETAILED DESCRIPTION

[0021] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0022] An embodiment of a dust recovery and recycling device of the present invention is shown in Figures 1 to Fig.12As shown, it includes a dust removal box body 1, an upper box body 2 is fixedly installed on the top of the dust removal box body 1, an ash hopper 3 is fixedly installed on the bottom of the dust removal box body 1, and an ash discharge component 4 is provided at the bottom of the ash hopper 3. An air outlet pipe 201 is fixedly installed on one side of the upper box body 2, and a dust air inlet pipe 301 is fixedly installed on one side of the ash hopper 3. A plurality of dust removal components 5 are fixedly installed on the bottom of the upper box body 2, and the plurality of dust removal components 5 extend to the interior of the dust removal box body 1. A device for spraying air into the plurality of dust removal components 5 is fixedly installed inside the upper box body 2. The pulse component 6; the dust removal component 5 includes a mounting member 501 fixedly mounted on the bottom of the upper housing 2, a filter bag 502 is fixedly mounted on the bottom of the mounting member 501, a support component 7 for controlling the deformation of the filter bag 502 is provided inside the mounting member 501, when a certain amount of dust adheres to the surface of the filter bag 502, the support component 7 will cause the area connected to the filter bag 502 to shrink, when a large amount of dust adheres to the surface of the filter bag 502, the support component 7 will cause the area connected to the filter bag 502 to twist.

[0023] As shown in FIGS. 2 to 5 , the support assembly 7 includes an outer cylinder 701 fixedly mounted at the center of the mounting member 501, and a plurality of movable frames 702 are rotatably provided on the outer surface of the outer cylinder 701. As shown in FIG. 11 , a pin shaft 7021 is fixedly provided on the top and bottom of the movable frame 702. A first rotating hole is provided at a position of the outer cylinder 701 corresponding to the pin shaft 7021. The pin shaft 7021 is connected to the first rotating hole through a bearing. A gear 703 is rotatably provided inside the plurality of movable frames 702. As shown in FIG. 11 , the gear 703 is provided on the inner surface of the plurality of movable frames 702. The two ends of the gear 703 are fixed with a rotating shaft 7031, and the movable frame 702 is provided with a second rotating hole at a position corresponding to the rotating shaft 7031. The rotating shaft 7031 is connected with the second rotating hole through a bearing. A support rod 704 is fixedly installed on the outer surface of the gear 703. A connecting rod 705 is hinged at one end of the support rod 704 away from the gear 703. The connecting rod 705 is fixedly installed on the inner wall of the filter bag 502. A weight detection component 8 for detecting the weight of the filter bag 502 is provided inside the outer cylinder 701. The weight detection component 8 is used to The multiple gears 703 are controlled to rotate synchronously. When a certain amount of dust is attached to the surface of the filter bag 502, the weight detection component 8 will sink with the deformation of the filter bag 502. When the weight detection component 8 sinks, the multiple gears 703 will be controlled to rotate, and then the support rod 704 controls the filter bag 502 to shrink through the connecting rod 705. The outer cylinder 701 is provided with a push assembly 9 at the position corresponding to the multiple gears 703. When a large amount of dust is attached to the surface of the filter bag 502, the push assembly 9 is used to control the gears 703 to drive the movement. The frame 702 is deflected, so that the support rod 704 controls the filter bag 502 to twist through the connecting rod 705. The weight detection component 8 and the push component 9 are both included in the support component 7. The cross-sectional shape of the outer cylinder 701 is polygonal, and each surface of the polygonal outer cylinder 701 is rotatably provided with a movable frame 702. Multiple movable frames 702 are linearly arrayed on the outer cylinder 701 along the extension direction of the outer cylinder 701. The movable frames 702 rotate radially on the outer cylinder 701, and the gear 703 rotates axially inside the movable frame 702.

[0024] As shown in FIGS. 3 to 7 , the weight detection assembly 8 includes a gear shaft 801 slidably arranged at the inner center of the outer cylinder 701. The gear shaft 801 is cylindrical in shape. A plurality of gears 703 are meshed with the gear shaft 801. A connecting frame 802 is fixedly installed at the bottom end of the gear shaft 801. The connecting frame 802 is fixedly installed on the bottom surface of the filter bag 502. A cylinder cover 706 is fixedly installed on the top of the outer cylinder 701. The top end of the gear shaft 801 is connected to the cylinder cover 706 through an elastic member 803. When a certain weight of dust is attached to the outside of the filter bag 502, the weight of the filter bag 502 will gradually become heavier, and then pass through the filter bag 502. 2, the gravity of the connecting frame 802 and the gear shaft 801 are pulled down, and the elastic member 803 is deformed due to the pulling of the gear shaft 801. When the gear shaft 801 sinks, the gear shaft 801 prompts the gear 703 to rotate, so that the gear 703 drives the support rod 704 to tilt toward one side of the outer cylinder 701, thereby changing the shape of the filter bag 502 by pulling the connecting rod 705 (the position where the filter bag 502 and the connecting rod 705 are connected will shrink inward). When the shape of the filter bag 502 changes, most of the dust particles attached to the outside thereof will automatically fall off, and at the same time, some dust attached to the inside of the gap of the filter bag 502 will be squeezed out.

[0025] like Fig.12 As shown, the push assembly 9 includes a fixed block 901 fixedly mounted on the surface of the outer cylinder 701, a push rod 902 is fixedly arranged on one side of the fixed block 901 close to the gear 703, and an arc groove 903 and a slope 904 are provided at the position of the gear 703 corresponding to the push rod 902. When the push rod 902 contacts the slope 904, the gear 703 drives the movable frame 702 to twist, and the two push rods 902 adjacent to each other are staggered at both ends of the gear 703, so that the push rods 902 When the filter bag 502 contacts the slope 904, the twisting directions of the two upper and lower adjacent movable frames 702 are opposite. As shown in FIGS. 3 to 9, when the filter bag 502 continues to sink due to the attachment of dust, the top rod 902 contacts the slope 904. When the top rod 902 contacts the slope 904, the gear 703 drives the movable frame 702 to twist. The two upper and lower adjacent top rods 902 are staggered at both ends of the gear 703, so that when the top rod 902 contacts the slope 904 (as shown in FIGS. 11 and 12), the top rod 902 contacts the slope 904. Fig.12 As shown in FIG. 5 ), the twisting directions of the two upper and lower adjacent movable frames 702 are opposite, so that the filter bag 502 is twisted to a certain extent, and the twisting of the filter bag 502 causes most of the dust particles attached to the outside to fall off again.

[0026] As shown in Figures 1 and 2, the pulse component 6 includes a gas tank 601 fixedly mounted on the outside of the upper box body 2, and a plurality of blowing pipes 602 are fixedly arranged on the outer surface of the gas tank 601. The plurality of blowing pipes 602 extend to the interior of the upper box body 2, and a venturi 603 is fixedly arranged at the openings of the plurality of blowing pipes 602 corresponding to the plurality of dust removal components 5. When the pulse component 6 is working, the gas tank 601 disperses the high-pressure gas from the blowing pipe 602 to the plurality of venturi tubes 603, and then sprays the high-pressure gas from the top of the mounting part 501 into the interior of the filter bag 502 through the venturi tubes 603. After the filter bag 502 is sprayed, the filter bag 502 is The gear 803 pulls back the gear shaft 801, so that the gear 703 drives the support rod 704 and the connecting rod 705 to change from the deflected tilted state to the tilted state, and then to the vertical state through the tilted state. At this time, the torsion part of the filter bag 502 will be unfolded, and the contracted part will also be stretched. During the unfolding and stretching process of the filter bag 502, the particles attached to the surface of the filter bag 502 can fall off again, and the dust particles attached to the outside of the filter bag 502 can be completely detached with the blowing, which effectively ensures the subsequent dust removal effect of the filter bag 502 and the complete recovery of the dust (as shown in Figures 3 to 9).

[0027] As shown in Figure 1, the ash discharge component 4 includes an ash discharge pipe 401 fixedly installed at the bottom of the ash hopper 3. The ash discharge pipe 401 is provided with a solenoid valve 402. After the dust falls off, it will gather inside the ash hopper 3. Then, the solenoid valve 402 can be opened to discharge the dust from the ash discharge pipe 401, so that the dust can be recycled and reused.

[0028] The dust removal box 1, upper box 2, ash hopper 3, ash discharge assembly 4, filter bag 502 and pulse assembly 6 described in this application are all well-known technologies in the technical field, so their specific structures and working principles are not described in detail.

[0029] The working process is as follows: S1, as shown in Figures 1 and 2, when in use, the dust gas is transported from the dust gas inlet pipe 301 to the inside of the ash hopper 3, and then the multiple dust removal components 5 will filter the dust, and the filtered gas will rise from the inside of the multiple dust removal components 5 to the upper box 2, and then be discharged through the outlet pipe 201; S2. As shown in FIGS. 3 to 7, when a certain weight of dust is attached to the outside of the filter bag 502, the weight of the filter bag 502 will gradually increase, and then the connection frame 802 and the gear shaft 801 will be pulled downward by the gravity of the filter bag 502. At this time, the elastic member 803 will be deformed due to the pulling of the gear shaft 801. When the gear shaft 801 sinks, the gear shaft 801 will cause the gear 703 to rotate, so that the gear 703 drives the support rod 704 to tilt toward one side of the outer cylinder 701, thereby changing the shape of the filter bag 502 by pulling the connecting rod 705 (the position where the filter bag 502 and the connecting rod 705 are connected will shrink inward). When the shape of the filter bag 502 changes, most of the dust particles attached to the outside will automatically fall off, and at the same time, part of the dust attached to the inside of the gap of the filter bag 502 will be squeezed out; S3, as shown in Figures 3 to 9, when the filter bag 502 continues to sink due to the attachment of dust, the top rod 902 will contact the slope 904. When the top rod 902 contacts the slope 904, the gear 703 will drive the movable frame 702 to twist. The two upper and lower adjacent top rods 902 are staggered at both ends of the gear 703, so that when the top rod 902 contacts the slope 904 (as shown in Figures 11 and Fig.12 As shown in FIG. 1 ), the twisting directions of the two upper and lower adjacent movable frames 702 are opposite, so that the filter bag 502 is twisted to a certain extent, and the twisting of the filter bag 502 causes most of the dust particles attached to the outside to fall off again; S4, as shown in FIG. 1 and FIG. 2, when the pulse assembly 6 is working, the gas tank 601 will disperse the high-pressure gas from the blowing pipe 602 to the multiple venturi tubes 603, and then the high-pressure gas will be sprayed from the top of the mounting member 501 into the interior of the filter bag 502 through the venturi tubes 603; S5. As shown in Figures 3 to 9, after the filter bag 502 is sprayed, the elastic member 803 is used to pull back the gear shaft 801, so that the gear 703 drives the support rod 704 and the connecting rod 705 to change from the deflected tilted state to the tilted state, and then to the vertical state through the tilted state. At this time, the torsion part of the filter bag 502 will be unfolded, and the contracted part will also be stretched. During the unfolding and stretching process of the filter bag 502, the particles attached to the surface of the filter bag 502 can fall off again, and the dust particles attached to the outside of the filter bag 502 are completely detached in cooperation with the spraying, which effectively ensures the subsequent dust removal effect of the filter bag 502 and the complete recovery of the dust.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust recovery and recycling device, comprising a dust removal box (1), characterized in that: An upper box body (2) is fixedly mounted on the top of the dust removal box body (1), an ash hopper (3) is fixedly mounted on the bottom of the dust removal box body (1), an ash discharge assembly (4) is provided at the bottom of the ash hopper (3), an air outlet pipe (201) is fixedly mounted on one side of the upper box body (2), a dust air inlet pipe (301) is fixedly mounted on one side of the ash hopper (3), a plurality of dust removal assemblies (5) are fixedly mounted on the bottom of the upper box body (2), the plurality of dust removal assemblies (5) all extend into the interior of the dust removal box body (1), and a pulse assembly (5) for spraying air into the interior of the plurality of dust removal assemblies (5) is fixedly mounted inside the upper box body (2). 6); the dust removal component (5) comprises a mounting member (501) fixedly mounted on the bottom of the upper housing (2); a filter bag (502) is fixedly mounted on the bottom of the mounting member (501); a support component (7) for controlling the deformation of the filter bag (502) is provided inside the mounting member (501); when a certain amount of dust adheres to the surface of the filter bag (502), the support component (7) causes the area where the filter bag (502) is connected to shrink; when a large amount of dust adheres to the surface of the filter bag (502), the support component (7) causes the area where the filter bag (502) is connected to twist.

2. A dust recovery and recycling device according to claim 1, characterized in that: The support assembly (7) comprises an outer cylinder (701) fixedly mounted at the center of the mounting member (501); a plurality of movable frames (702) are rotatably mounted on the outer surface of the outer cylinder (701); gears (703) are rotatably mounted inside the plurality of movable frames (702); a support rod (704) is fixedly mounted on the outer surface of the gear (703); a connecting rod (705) is hingedly connected to one end of the support rod (704) away from the gear (703); the connecting rod (705) is fixedly mounted on the inner wall of the filter bag (502); a weight detection assembly (8) for detecting the weight of the filter bag (502) is disposed inside the outer cylinder (701); the weight detection assembly (8) is used to control the synchronous rotation of the plurality of gears (703) When a certain amount of dust adheres to the surface of the filter bag (502), the weight detection component (8) sinks with the deformation of the filter bag (502), so that when the weight detection component (8) sinks, it controls the plurality of gears (703) to rotate, thereby allowing the support rod (704) to control the filter bag (502) to shrink through the connecting rod (705), and the outer cylinder (701) is provided with a push assembly (9) at the position corresponding to the plurality of gears (703), and when a large amount of dust adheres to the surface of the filter bag (502), the push assembly (9) is used to control the gears (703) to drive the movable frame (702) to deflect, thereby allowing the support rod (704) to control the filter bag (502) to twist through the connecting rod (705).

3. A dust recovery and recycling device according to claim 2, characterized in that: The cross-sectional shape of the outer cylinder (701) is polygonal, and each face of the polygonal outer cylinder (701) is rotatably provided with a movable frame (702), a plurality of movable frames (702) are linearly arrayed on the outer cylinder (701) along the extension direction of the outer cylinder (701), the movable frames (702) radially rotate on the outer cylinder (701), and the gear (703) axially rotates inside the movable frame (702).

4. A dust recovery and recycling device according to claim 3, characterized in that: The weight detection component (8) comprises a gear shaft (801) slidably arranged at the center of the outer cylinder (701), the gear shaft (801) being in the shape of a cylinder, a plurality of gears (703) being meshed with the gear shaft (801), a connecting frame (802) being fixedly mounted on the bottom end of the gear shaft (801), the connecting frame (802) being fixedly mounted on the bottom surface of the filter bag (502), a cylinder cover (706) being fixedly mounted on the top of the outer cylinder (701), and the top end of the gear shaft (801) and the cylinder cover (706) being matched and connected via an elastic member (803).

5. The dust recovery and recycling device according to claim 4 is characterized in that: The push assembly (9) comprises a fixed block (901) fixedly mounted on the surface of the outer cylinder (701); a push rod (902) is fixedly mounted on a side of the fixed block (901) close to the gear (703); an arc-shaped groove (903) and a slope (904) are formed on the gear (703) at a position corresponding to the push rod (902); when the push rod (902) contacts the slope (904), the gear (703) drives the movable frame (702) to twist.

6. The dust recovery and recycling device according to claim 5, characterized in that: The two upper and lower adjacent push rods (902) are staggeredly arranged at the two ends of the gear (703), so that when the push rods (902) contact the slope (904), the twisting directions of the two upper and lower adjacent movable frames (702) are opposite.

7. The dust recovery and recycling device according to claim 2, characterized in that: A pin shaft (7021) is fixedly provided at the top and the bottom of the movable frame (702), a first rotation hole is provided at a position of the outer cylinder (701) corresponding to the pin shaft (7021), and the pin shaft (7021) is matched and connected to the first rotation hole via a bearing.

8. The dust recovery and recycling device according to claim 2, characterized in that: Rotating shafts (7031) are fixedly provided at both ends of the gear (703), and second rotating holes are provided at positions of the movable frame (702) corresponding to the rotating shafts (7031), and the rotating shafts (7031) are matched and connected to the second rotating holes via bearings.

9. The dust recovery and recycling device according to claim 1, characterized in that: The pulse assembly (6) comprises a gas tank (601) fixedly mounted on the outside of the upper housing (2); a plurality of blowing pipes (602) are fixedly mounted on the outer surface of the gas tank (601); the plurality of blowing pipes (602) all extend into the interior of the upper housing (2); and a venturi (603) is fixedly mounted at the openings of the plurality of blowing pipes (602) corresponding to the plurality of dust removal assemblies (5).

10. The dust recovery and recycling device according to claim 1, characterized in that: The ash discharge assembly (4) comprises an ash discharge pipe (401) fixedly mounted at the bottom of the ash hopper (3), and a solenoid valve (402) is provided on the ash discharge pipe (401).

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