Bag type air filtering device

Abstract

The invention belongs to the technical field of bag type filtration, and discloses a bag type air filtration device which comprises a mounting frame, middle sleeves are distributed in the mounting frame at equal intervals, filter bag assemblies are fixedly arranged in the mounting frame, and the filter bag assemblies and the middle sleeves are alternately distributed. Through the composite rotating assemblies alternately distributed between the adjacent filter bag assemblies, the disturbance frame rotates in a reciprocating mode between the filter bag bodies on the two sides and impacts and pushes the filter bag bodies on the two sides, on one hand, the filter bag bodies are continuously impacted and shaken in the filtering process, and the internal dust separation effect is improved; on the other hand, expansion contact of the filter bag bodies on the two sides in a high-speed ventilation filtering state is avoided, the filtering area is increased, the filtering area of the filter bag bodies is reduced under the condition that contact accumulation is avoided, the filtering effect of the actual filter bag is greatly enhanced, and the influence of internal blockage and external overlapping is reduced; the use effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of bag filters, in particular to a bag air filter device. Background Art

[0002] Bag air filtration device, also known as bag air filter or bag filter, the working principle of bag air filtration device is mainly pressure filtration. When the gas containing solid powder or dust enters the filter, the gas carrying dust continues to move upward and pass through the filter bag. The dust is gathered on the surface of the filter bag, and the filtered clean air is discharged through the exhaust outlet, finally completing the effective separation of dust and gas.

[0003] The bag-type air filter device in the prior art is most commonly a cloth bag-type filter device. However, in the actual air filtration process, the filter bag is affected by the pressure and speed of the pressurized air, expands at high speed, and makes two adjacent filter bags contact each other, causing the filtration area to overlap, thereby reducing the filtration area and reducing the filtration effect. At low speeds, the filter bags will shrink and fit together, reducing the volume of the filter cavity, which comprehensively reduces the filtration effect. In the filtration process, dust particles are continuously accumulated on the inner wall of the filter bag, and the dust attached to the inner wall of the filter bag forms a clogging layer, which further affects the subsequent filtration quality, and the overall filtration effect is poor. Summary of the invention

[0004] The object of the present invention is to provide a bag-type air filter device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bag-type air filter device, comprising an installation frame, wherein intermediate sleeves are evenly spaced inside the installation frame, filter bag assemblies are fixedly arranged inside the installation frame, and the filter bag assemblies and the intermediate sleeves are alternately arranged, a linkage assembly is movably installed on the top of the installation frame, and the lower end of the linkage assembly is movably sleeved in the intermediate sleeve, and a composite rotating assembly is arranged between adjacent filter bag assemblies, one end of the composite rotating assembly is rotatably installed inside the intermediate sleeve, the linkage assembly reciprocates up and down and controls the composite rotating assembly to reciprocate, a primary filter assembly is installed on the front of the installation frame, and a self-cleaning assembly is rotatably arranged on the front of the primary filter assembly, and the self-cleaning assembly is fixedly connected to a group of composite rotating assemblies, The compound rotating assembly includes a disturbance frame, an intermediate rotating shaft, a gear and a toothed plate. The intermediate rotating shaft is fixedly sleeved inside the disturbance frame, the gear is fixedly sleeved on the outer surface of the intermediate rotating shaft and meshed with the toothed plate, and the top of the toothed plate is fixedly connected to the linkage assembly.

[0006] Preferably, a movable cavity is provided at the top of the intermediate sleeve, an assembly cavity is provided inside the intermediate sleeve, the movable cavity and the assembly cavity are communicated, the gear is rotatably installed in the assembly cavity, and the gear plate is movably sleeved in the movable cavity.

[0007] Preferably, the linkage assembly includes a transverse plate, a push plate and a spring, the push plate is movably sleeved on the top of the mounting frame, the lower end of the push plate is movably sleeved in the movable cavity and fixedly connected to the tooth plate, and the upper end is fixedly connected to the transverse plate, one end of the spring is fixed to the bottom of the transverse plate, and the lower end is fixed to the top of the mounting frame.

[0008] Preferably, a rotating mechanism is fixedly provided on the top of the installation frame, and the rotating mechanism includes a rotating motor and a cam. The rotating motor drives the cam to rotate, and the cam is located on the bottom surface of the horizontal plate and contacts with the bottom surface of the horizontal plate.

[0009] Preferably, the primary filter assembly includes a filter plate, filter holes and a mounting portion, the mounting portion is fixed on both sides of the filter plate, the mounting portion is installed on a mounting frame, and the filter holes are opened on the front side of the filter plate.

[0010] Preferably, the mounting portion includes a side plate, a threaded rod and a locking ring, the side plate is fixed to the side of the filter plate, the threaded rod is movably sleeved in the mounting frame and fixedly connected to the side plate, and the threaded rod is fixed to the mounting frame through the locking ring.

[0011] Preferably, the self-cleaning assembly includes a sleeve, a scraper rod and a positioning column, the positioning column is fixedly connected to the end of an intermediate rotating shaft, the sleeve is threadedly sleeved on the outer surface of the positioning column, the sleeve is rotatably sleeved on the front side of the filter plate, the scraper rod is symmetrically fixed on the outer surface of the sleeve, and the scraper rod is located on the front side of the aluminum filter plate.

[0012] Preferably, the filter bag assembly includes a fixing frame, a filter bag body and a magnetic plate. The fixing frame is fixedly sleeved in the installation frame and fixedly connected to the middle sleeve on both sides. The end of the filter bag body is fixedly connected to the fixing frame, and the magnetic plate is fixed to the outer end of the filter bag body.

[0013] Preferably, a magnetic connection part is fixedly provided on the back side of the primary filter assembly, and the magnetic connection part is located in the filter bag assembly. The magnetic connection part includes a support rod, an elastic rod and an electromagnet. One end of the support rod is fixedly connected to the filter plate, and the other end is fixedly connected to the outer side surface of the elastic rod. The electromagnet is fixedly nested on the outer surface of the elastic rod, and the electromagnet corresponds one-to-one to the magnetic plate.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention utilizes a linkage component, a rotating mechanism and a composite rotating component. When performing air filtering, the linkage component is driven up and down by the rotating mechanism to realize the rotation of the composite rotating component. In conjunction with the alternately distributed intermediate sleeves and filter bag components, and the composite rotating components alternately distributed between adjacent filter bag components, the disturbance frame reciprocates between the filter bag bodies on both sides and impacts and pushes the filter bag bodies on both sides. On the one hand, the filter bag bodies are continuously collided and shaken during the filtering process to improve the effect of internal dust separation and avoid clogging the filter bag pores and affecting the filtering effect. On the other hand, the expansion and contact of the filter bag bodies on both sides under the high-speed ventilation and filtering state are avoided, the filtering area is increased, and the filtering area of ​​the filter bag bodies is reduced in the case of contact accumulation, which greatly enhances the filtering effect of the actual filter bag, reduces the influence of internal blockage and external overlap, and has a good use effect.

[0015] 2. The present invention utilizes the reciprocating forward and reverse rotation of the composite rotating component, cooperates with the outer primary filter component and the self-cleaning component rotatably arranged on the outer side of the primary filter component, and while the reciprocating rotation realizes the disturbance of the filter bag body, it drives the connected self-cleaning component to rotate, and makes the scraper rotate and rub along the front side of the filter plate to actively clean the blockage in the filter hole. Without adding additional power equipment, the automatic clearing operation of the primary filter component is completed simultaneously, which is convenient to use.

[0016] 3. The present invention utilizes the primary filter assembly to install the magnetic connection part, and cooperates with the magnetic plate added in the filter bag assembly, so that the magnetic connection parts are arranged in the upper and lower parts of the filter bag assembly. On the one hand, the magnetic connection part is used to provide auxiliary support to the inside of the filter bag body to avoid the filter bag body from shrinking and merging during low-speed air filtering to reduce the filtration area, thereby achieving internal support and basic filtration area. On the other hand, after the electromagnet is energized, a magnetic force is generated, and the electromagnet is magnetically fixed to the magnetic plate on the outer side of the filter bag body. The magnetic connection part is connected and fixed to the inside of the filter bag body by the magnetic effect. When the primary filter assembly is disassembled and moved outward, the magnetic connection part is pulled synchronously, thereby pulling the filter bag body to flip outward, and simultaneously realizing the flipping and removal of multiple groups of filter bag bodies, so that the dust accumulated in the filter bag body can be quickly opened for cleaning and separation, and the internal cleaning is more convenient and simple, with good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the bag-type air filter device of the present invention; Figure 2 is a cross-sectional schematic diagram of a bag-type air filter device of the present invention; Figure 3 It is a front schematic diagram of the installation frame of the present invention; Figure 4 It is a schematic diagram of the self-cleaning component and the linkage component of the present invention; Figure 5is a schematic diagram of a composite rotating assembly of the present invention; Figure 6 It is a cross-sectional schematic diagram of the intermediate sleeve of the present invention; Figure 7 It is an exploded schematic diagram of the filter bag assembly of the present invention; Figure 8 It is a schematic diagram of the installation of the primary filter assembly and the magnetic connection part of the present invention; Fig. 9 It is a partial schematic diagram of the magnetic connection part of the present invention.

[0018] In the figure: 1. installation frame; 2. intermediate sleeve; 3. filter bag assembly; 31. fixed frame; 32. filter bag body; 33. magnetic plate; 4. linkage assembly; 41. cross plate; 42. push plate; 43. spring; 5. rotating mechanism; 6. compound rotating assembly; 61. disturbance frame; 62. intermediate rotating shaft; 63. gear; 64. tooth plate; 7. movable cavity; 8. assembly cavity; 9. primary filter assembly; 91. filter plate; 92. filter hole; 93. installation part; 10. self-cleaning assembly; 101. sleeve; 102. scraper rod; 103. positioning column; 11. magnetic connection part; 111. support rod; 112. elastic rod; 113. electromagnet. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figures 1 to 9 As shown, an embodiment of the present invention provides a bag-type air filter device, including a mounting frame 1, wherein intermediate sleeves 2 are evenly spaced inside the mounting frame 1, filter bag assemblies 3 are fixedly arranged inside the mounting frame 1, and the filter bag assemblies 3 and the intermediate sleeves 2 are alternately arranged, a linkage assembly 4 is movably installed on the top of the mounting frame 1, and the lower end of the linkage assembly 4 is movably sleeved in the intermediate sleeve 2, a composite rotating assembly 6 is arranged between adjacent filter bag assemblies 3, one end of the composite rotating assembly 6 is rotatably installed inside the intermediate sleeve 2, the linkage assembly 4 reciprocates up and down and controls the composite rotating assembly 6 to reciprocate, a primary filter assembly 9 is installed on the front of the mounting frame 1, and a self-cleaning assembly 10 is rotatably arranged on the front of the primary filter assembly 9, and the self-cleaning assembly 10 is fixedly connected to a group of composite rotating assemblies 6, The compound rotating component 6 includes a disturbance frame 61, an intermediate rotating shaft 62, a gear 63 and a toothed plate 64. The intermediate rotating shaft 62 is fixedly sleeved inside the disturbance frame 61, and the gear 63 is fixedly sleeved on the outer surface of the intermediate rotating shaft 62 and meshed with the toothed plate 64. The top of the toothed plate 64 is fixedly connected to the linkage component 4.

[0021] Embodiment 1: When in use, as the mixed air to be filtered is input into the front of the filter device, large particles of impurities are directly blocked on the filter plate 91 of the primary filter assembly 9, and the mixed air after primary filtration is further input into each group of filter bag assemblies 3, and the dust is filtered inside the filter bag body 32, and the pure air is blown out, and the rotating mechanism 5 is started. The cam in the rotating mechanism 5 rotates along the bottom of the cross plate 41 in the linkage assembly 4, and intermittently pushes the cross plate 41 to move upward. When moving upward, the cross plate 41 stretches the spring 43 upward. When the raised part of the cam is located at the bottom, the spring 43 pulls the cross plate 41 elastically downward to reset, and contacts the outer side surface of the cam, so that the cross plate 41 moves up and down reciprocatingly, and the cross plate 41 The tooth plate 64 is driven to move up and down reciprocatingly, and the meshing gear 63 is caused to rotate reciprocatingly, thereby driving the intermediate rotating shaft 62 to rotate reciprocatingly, so that the disturbance frame 61 swings back and forth between the filter bag bodies 32 on both sides and hits the filter bag bodies 32, and the dust attached to the inner wall of the filter bag bodies 32 is shaken off inside, and when the filter bag bodies 32 on both sides are inflated and contacted, the disturbance frame 61 pushes the contacting filter bag bodies 32 on both sides back and forth. At the same time, a group of intermediate rotating shafts 62 drives the sleeve 101 to rotate through the positioning columns 103 fixed at the ends, so that the sleeve 101 drives the scraper rods 102 on both sides to rotate, so that the scraper rods 102 rotate along the front of the filter plate 91, and complete the cleaning of the blockage on the outside of the filter hole 92.

[0022] Firstly, by utilizing the linkage assembly 4, the rotating mechanism 5 and the composite rotating assembly 6, during air filtering, the linkage assembly 4 is driven up and down by the rotating mechanism 5 to realize the rotation of the composite rotating assembly 6, and the intermediate sleeve 2 and the filter bag assembly 3 that are alternately distributed, as well as the composite rotating assembly 6 that is alternately distributed between adjacent filter bag assemblies 3, the disturbance frame 61 reciprocates between the filter bag bodies 32 on both sides, and impacts and pushes the filter bag bodies 32 on both sides. On the one hand, the filter bag bodies 32 are continuously collided and shaken during the filtering process to improve the effect of internal dust separation and avoid clogging the filter bag pores and affecting the filtering effect. On the other hand, the filter bag bodies 32 on both sides are prevented from expanding and contacting in the high-speed ventilation and filtering state, thereby increasing the filtering area and avoiding reducing the filtering area of ​​the filter bag bodies 32 in the case of contact accumulation, which greatly enhances the filtering effect of the actual filter bag, reduces the influence of internal blockage and external overlap, and has a good use effect.

[0023] In addition, by utilizing the reciprocating forward and reverse rotation of the composite rotating component 6, cooperating with the outer primary filter component 9 and the self-cleaning component 10 rotatably arranged on the outer side of the primary filter component 9, while the reciprocating rotation realizes the disturbance of the filter bag body 32, it drives the connected self-cleaning component 10 to rotate, and makes the scraper rod 102 rotate and rub along the front side of the filter plate 91, actively cleaning the blockage in the filter hole 92, and the automatic clearing operation of the primary filter component 9 is completed simultaneously without adding additional power equipment, which is convenient to use.

[0024] The top of the middle sleeve 2 is provided with a movable cavity 7 , the interior of the middle sleeve 2 is provided with an assembly cavity 8 , the movable cavity 7 and the assembly cavity 8 are connected, the gear 63 is rotatably installed in the assembly cavity 8 , and the gear plate 64 is movably sleeved in the movable cavity 7 .

[0025] By utilizing the cooperation between the assembly cavity 8 and the movable cavity 7, one end of the composite rotating assembly 6 is installed, stable support is maintained, and movement space is provided.

[0026] Among them, the linkage assembly 4 includes a transverse plate 41, a push plate 42 and a spring 43. The push plate 42 is movably sleeved on the top of the mounting frame 1. The lower end of the push plate 42 is movably sleeved in the movable cavity 7 and is fixedly connected to the tooth plate 64, and the upper end is fixedly connected to the transverse plate 41. One end of the spring 43 is fixed to the bottom of the transverse plate 41, and the lower end is fixed to the top of the mounting frame 1.

[0027] The linkage assembly 4 provides up and down reciprocating movement, and controls the tooth plate 64 to move up and down, so as to realize the reciprocating rotation of the gear 63, and complete the reciprocating rotation control of the compound rotating assembly 6.

[0028] A rotating mechanism 5 is fixedly provided on the top of the installation frame 1 . The rotating mechanism 5 includes a rotating motor and a cam. The rotating motor drives the cam to rotate. The cam is located on the bottom surface of the horizontal plate 41 and contacts the bottom surface of the horizontal plate 41 .

[0029] By utilizing the rotating mechanism 5 to provide a rotating force and cooperating with the arrangement of the cam, the linkage assembly 4 is pushed upward reciprocatingly, and the elasticity of the spring 43 is coordinated to provide the power for the linkage assembly 4 to move up and down reciprocatingly.

[0030] Among them, the primary filter assembly 9 includes a filter plate 91, a filter hole 92 and a mounting portion 93, the mounting portion 93 is fixed on both sides of the filter plate 91, the mounting portion 93 is installed on the mounting frame 1, the filter hole 92 is opened on the front of the filter plate 91, the mounting portion 93 includes a side plate, a threaded rod and a locking ring, the side plate is fixed to the side of the filter plate 91, the threaded rod is movably sleeved in the mounting frame 1 and fixedly connected to the side plate, and the threaded rod is fixed to the mounting frame 1 through a locking ring.

[0031] The primary filter assembly 9 realizes preliminary filtration, filtering large particles of impurities in the air outside the filter bag to achieve multi-stage filtration. The mounting portion 93 is fixed to the mounting frame 1 by the sleeve connection of the threaded rod and the locking ring.

[0032] Among them, the self-cleaning component 10 includes a sleeve 101, a scraper rod 102 and a positioning column 103. The positioning column 103 is fixedly connected to the end of an intermediate rotating shaft 62. The sleeve 101 is threadedly sleeved on the outer surface of the positioning column 103. The sleeve 101 is rotatably sleeved on the front side of the filter plate 91. The scraper rod 102 is symmetrically fixed on the outer surface of the sleeve 101. The scraper rod 102 is located on the front side of the aluminum filter plate 91.

[0033] By utilizing the rotation of the self-cleaning component 10, the blockage on the front side of the primary filter component 9 can be cleared, and the sleeve 101 and the positioning column 103 in the self-cleaning component 10 are detachable, which is convenient for removal.

[0034] Among them, the filter bag assembly 3 includes a fixed frame 31, a filter bag body 32 and a magnetic plate 33. The fixed frame 31 is fixedly sleeved in the installation frame 1, and the two sides are fixedly connected to the middle sleeve 2. The end of the filter bag body 32 is fixedly connected to the fixed frame 31, and the magnetic plate 33 is fixed to the outer end of the filter bag body 32. A magnetic connection part 11 is fixedly provided on the back of the primary filter assembly 9. The magnetic connection part 11 is located in the filter bag assembly 3. The magnetic connection part 11 includes a support rod 111, an elastic rod 112 and an electromagnet 113. One end of the support rod 111 is fixedly connected to the filter plate 91, and the other end is fixedly connected to the outer side surface of the elastic rod 112. The electromagnet 113 is fixedly nested on the outer surface of the elastic rod 112, and the electromagnet 113 corresponds one to one with the magnetic plate 33.

[0035] The magnetic connection part 11 is sleeved on the inside of the filter bag body 32 to achieve internal support, thereby preventing the internal deformation of the filter bag body 32 during low-speed filtration. On the other hand, when the electromagnet 113 is energized to generate magnetic force, it is magnetically attracted to the outer magnetic plate 33 to achieve internal connection of the filter bag body 32. When the magnetic connection part 11 is pulled out, the filter bag body 32 is flipped open to open the interior, thereby quickly cleaning the internal dust and impurities.

[0036] Embodiment 2: When the air flow rate to be filtered is low, the filter bag body 32 gradually recovers from the expanded state and maintains a relatively contracted state. At this time, the magnetic connection part 11 inserted into the filter bag body 32 supports the inside of the filter bag body 32 through the horizontal elastic rod 112. The filter bag body 32 maintains the internal space and performs dust filtering. When it is necessary to clean the dust and filter material inside the filter bag body 32, the electromagnet 113 in the magnetic connection part 11 is first started. The energized electromagnet 113 has magnetism and is adsorbed and fixed to the magnetic plate 33 in the filter bag assembly 3. The filter bag body 32 is The end is clamped and fixed with the magnetic connection part 11, the locking ring in the mounting part 93 in the primary filter assembly 9 is loosened, and the self-cleaning assembly 10 is unscrewed from the front of the filter plate 91, and the filter plate 91 is pulled outward, driving the support rod 111 to move horizontally and move out from the filter bag body 32, and at the same time driving the filter bag body 32 to move horizontally. As the magnetic connection part 11 is moved out of the mounting frame 1, the inside of the magnetically clamped filter bag body 32 is turned over and turned over to the outside of the mounting frame 1. The inside of all the filter bag bodies 32 are opened, and shaking and manual cleaning are completed to quickly separate the dust accumulated inside the filter bag body 32.

[0037] Firstly, by using the primary filter assembly 9 to install the magnetic connection part 11, and cooperating with the magnetic plate 33 added in the filter bag assembly 3, the magnetic connection part 11 is arranged up and down in the filter bag assembly 3. On the one hand, the magnetic connection part 11 is used to provide auxiliary support for the inside of the filter bag body 32 to avoid the filter bag body 32 from shrinking and merging during low-speed air filtering to reduce the filtration area, thereby achieving internal support and basic filtration area. On the other hand, after the electromagnet 113 is energized, a magnetic force is generated, and the electromagnet 113 is magnetically fixed to the magnetic plate 33 on the outer side of the filter bag body 32. The magnetic connection part 11 is connected and fixed to the inside of the filter bag body 32 by the magnetic effect. When the primary filter assembly 9 is disassembled and moved outward, the magnetic connection part 11 is pulled synchronously, thereby pulling the filter bag body 32 to flip outward, and simultaneously realizing the flipping and removal of multiple groups of filter bag bodies 32, thereby quickly cleaning and separating the dust accumulated in the filter bag body 32 after opening, and the internal cleaning is more convenient and simple, and the use effect is good.

[0038] The working principle and use process of the present invention are as follows: when in use, as the mixed air to be filtered is input into the front side of the filter device, large particles of impurities are directly blocked on the filter plate 91 of the primary filter assembly 9, and the mixed air after primary filtration is further input into each group of filter bag assemblies 3, and the dust is filtered inside the filter bag body 32, and the pure air is blown out, and the rotating mechanism 5 is started, and the cam in the rotating mechanism 5 rotates along the bottom of the cross plate 41 in the linkage assembly 4, and intermittently pushes the cross plate 41 to move upward, and when moving upward, the cross plate 41 stretches the spring 43 upward, and when the convex part of the cam is located at the bottom, the spring 43 pulls the cross plate 41 elastically downward to reset, and cooperates with the outer cam The side contact causes the horizontal plate 41 to move up and down reciprocatingly, and the horizontal plate 41 drives the tooth plate 64 to move up and down reciprocatingly, and causes the meshing gear 63 to rotate reciprocatingly, thereby driving the intermediate shaft 62 to rotate reciprocatingly, so that the disturbance frame 61 swings back and forth between the filter bag bodies 32 on both sides and hits the filter bag bodies 32, and the dust attached to the inner wall of the filter bag bodies 32 is shaken off inside, and when the filter bag bodies 32 on both sides are inflated and in contact, the disturbance frame 61 pushes the filter bag bodies 32 on both sides in contact reciprocatingly, and at the same time, a set of intermediate shafts 62 drives the sleeve 101 to rotate through the positioning column 103 fixed at the end, so that the sleeve 101 drives the scraping rods on both sides. 102 rotates, so that the scraper rod 102 rotates along the front of the filter plate 91 and completes the cleaning of the blockage on the outside of the filter hole 92; when the air flow rate to be filtered is low, the filter bag body 32 gradually recovers from the expanded state and maintains a relatively contracted state, and at this time, the magnetic connection part 11 inserted into the filter bag body 32 supports the inside of the filter bag body 32 through the horizontal elastic rod 112, and the filter bag body 32 maintains the internal space and performs dust filtering. When it is necessary to clean the dust and filter material inside the filter bag body 32, the electromagnet 113 in the magnetic connection part 11 is first started, and the energized electromagnet 113 has magnetism and is connected to the filter bag assembly 3 The magnetic plate 33 is adsorbed and fixed, one end of the filter bag body 32 is clamped and fixed to the magnetic connection part 11, the locking ring in the mounting part 93 in the primary filter assembly 9 is loosened, and the self-cleaning assembly 10 is unscrewed from the front of the filter plate 91, and the filter plate 91 is pulled outward, driving the support rod 111 to move horizontally and move out of the filter bag body 32, and at the same time driving the filter bag body 32 to move horizontally, as the magnetic connection part 11 is moved out of the mounting frame 1, the inside of the magnetically clamped filter bag body 32 is turned over and turned over to the outside of the mounting frame 1, all the insides of the filter bag bodies 32 are opened, and shaking and manual cleaning are completed to quickly separate the dust accumulated inside the filter bag bodies 32.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag-type air filter device, comprising a mounting frame (1), characterized in that: The interior of the installation frame (1) is provided with intermediate sleeves (2) at equal intervals. The interior of the installation frame (1) is fixedly provided with filter bag assemblies (3). The filter bag assemblies (3) and the intermediate sleeves (2) are alternately provided. A linkage assembly (4) is movably installed on the top of the installation frame (1). The lower end of the linkage assembly (4) is movably sleeved in the intermediate sleeve (2). A composite rotating assembly (6) is provided between adjacent filter bag assemblies (3). One end of the composite rotating assembly (6) is rotatably installed inside the intermediate sleeve (2). The linkage assembly (4) reciprocates up and down and controls the composite rotating assembly (6) to reciprocate. A primary filter assembly (9) is installed on the front of the installation frame (1). A self-cleaning assembly (10) is rotatably provided on the front of the primary filter assembly (9). The self-cleaning assembly (10) is fixedly connected to a group of composite rotating assemblies (6). The composite rotating assembly (6) comprises a disturbance frame (61), an intermediate rotating shaft (62), a gear (63) and a toothed plate (64); the intermediate rotating shaft (62) is fixedly sleeved inside the disturbance frame (61); the gear (63) is fixedly sleeved on the outer surface of the intermediate rotating shaft (62) and meshingly connected with the toothed plate (64); and the top of the toothed plate (64) is fixedly connected to the linkage assembly (4).

2. A bag type air filter device according to claim 1, characterized in that: A movable cavity (7) is provided at the top of the intermediate sleeve (2), an assembly cavity (8) is provided inside the intermediate sleeve (2), the movable cavity (7) and the assembly cavity (8) are communicated, the gear (63) is rotatably mounted in the assembly cavity (8), and the gear plate (64) is movably sleeved in the movable cavity (7).

3. A bag type air filter device according to claim 2, characterized in that: The linkage assembly (4) comprises a transverse plate (41), a push plate (42) and a spring (43); the push plate (42) is movably sleeved on the top of the mounting frame (1); the lower end of the push plate (42) is movably sleeved in the movable cavity (7) and is fixedly connected to the tooth plate (64), and the upper end is fixedly connected to the transverse plate (41); one end of the spring (43) is fixed to the bottom of the transverse plate (41), and the lower end is fixed to the top of the mounting frame (1).

4. A bag type air filter device according to claim 3, characterized in that: A rotating mechanism (5) is fixedly provided on the top of the installation frame (1), wherein the rotating mechanism (5) comprises a rotating motor and a cam, wherein the rotating motor drives the cam to rotate, and the cam is located on the bottom surface of the horizontal plate (41) and contacts the bottom surface of the horizontal plate (41).

5. A bag type air filter device according to claim 4, characterized in that: The primary filter assembly (9) comprises a filter plate (91), a filter hole (92) and a mounting portion (93); the mounting portion (93) is fixed to both sides of the filter plate (91); the mounting portion (93) is mounted on a mounting frame (1); and the filter hole (92) is provided on the front surface of the filter plate (91).

6. A bag type air filter device according to claim 5, characterized in that: The mounting portion (93) comprises a side plate, a threaded rod and a locking ring, the side plate being fixed to the side surface of the filter plate (91), the threaded rod being movably sleeved in the mounting frame (1) and fixedly connected to the side plate, and the threaded rod being fixed to the mounting frame (1) via the locking ring.

7. A bag type air filter device according to claim 6, characterized in that: The self-cleaning assembly (10) comprises a sleeve (101), a scraper rod (102) and a positioning column (103); the positioning column (103) is fixedly connected to the end of an intermediate rotating shaft (62); the sleeve (101) is threadedly sleeved on the outer surface of the positioning column (103); the sleeve (101) is rotatably sleeved on the front surface of the filter plate (91); the scraper rod (102) is symmetrically fixed on the outer surface of the sleeve (101); and the scraper rod (102) is located on the front surface of the aluminum filter plate (91).

8. A bag-type air filter device according to claim 7, characterized in that: The filter bag assembly (3) comprises a fixing frame (31), a filter bag body (32) and a magnetic plate (33); the fixing frame (31) is fixedly sleeved in the mounting frame (1) and fixedly connected to the middle sleeve (2) at two sides; the end of the filter bag body (32) is fixedly connected to the fixing frame (31); and the magnetic plate (33) is fixed to the outer end of the filter bag body (32).

9. A bag-type air filter device according to claim 8, characterized in that: A magnetic connection part (11) is fixedly provided on the back of the primary filter assembly (9); the magnetic connection part (11) is located in the filter bag assembly (3); the magnetic connection part (11) comprises a support rod (111), an elastic rod (112) and an electromagnet (113); one end of the support rod (111) is fixedly connected to the filter plate (91), and the other end is fixedly connected to the outer side surface of the elastic rod (112); the electromagnet (113) is fixedly nested on the outer surface of the elastic rod (112); the electromagnet (113) corresponds one-to-one to the magnetic plate (33).

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