A dust cleaning device for a pulse bag filter

Abstract

The present invention relates to the technical field of pulse bag dust collectors, and specifically to a dust cleaning device for a pulse bag dust collector, including a support frame, a driving mechanism arranged on the support frame, and a rotating frame connected to the driving mechanism in a transmission manner, and also includes a screw rotatably arranged on one side of the lower end of the rotating frame, a monitoring motor arranged on the rotating frame and connected to the screw in a transmission manner, a guide rod arranged on both sides of the screw and parallel to the screw, a connecting frame arranged between the screw and the guide rod, a lifting seat arranged on the screw, a monitoring module arranged on the lifting seat, a dust cleaning rod arranged on one side of the guide rod, and a paddle arranged on the dust cleaning rod. The present invention can perform dust cleaning when the bag dust collector is in a working state, and when used in conjunction with a pulse back-blowing device, it can significantly reduce the number of times pulse back-blowing is used and increase the service life of the filter bag.

Description

Technical Field

[0001] The invention relates to the technical field of pulse bag dust collectors, and in particular to a dust cleaning device for a pulse bag dust collector. Background Art

[0002] A bag filter is a dry dust filtering device. The filter bag is made of textile filter cloth or non-textile felt. It uses the filtering effect of fiber fabric to filter dust-containing gas. When the dust-containing gas enters the bag filter, the dust with large particles and high specific gravity settles down due to gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter bag, the dust is retained, so that the gas is purified. However, after the filter bag of the bag filter has been used for a period of time, a layer of dust will accumulate on the surface of the filter bag, resulting in a significant reduction in the dust removal efficiency and effect of the bag filter. Especially after using a filter bag that can block fine dust particles, as the filter holes become smaller, as long as a part of the micro dust particles are attached, the filtering capacity of the filter bag will be seriously reduced.

[0003] The pulse bag dust collector adopts pulse backblowing for cleaning. It needs to be opened frequently for backblowing cleaning during use. The pulse backblowing during cleaning is opposite to the flow direction of the dust-laden gas. Cleaning can only be performed when the bag dust collector is stopped, resulting in frequent start and stop of the bag dust collector, repeated expansion and impact vibration of the filter bags, which reduces the life of the filter bags and seriously affects the working efficiency of the bag dust collector. Summary of the invention

[0004] In order to solve the above-mentioned problem, the present invention provides a cleaning device for a pulse bag dust collector, which is installed at the outlet of the filter bag and extends into the filter bag. It can clean the bag dust collector when it is in working state. When used in conjunction with a pulse backblowing device, it can greatly reduce the number of times pulse backblowing is used, thereby increasing the service life of the filter bag without affecting the working efficiency of the bag dust collector.

[0005] The technical solution adopted by the present invention is to provide a dust cleaning device for a pulse bag dust collector, comprising a support frame, a driving mechanism arranged on the support frame, and a rotating frame connected to the driving mechanism in a transmission manner, and also comprising a screw rod rotatably arranged on one side of the lower end of the rotating frame, a monitoring motor arranged on the rotating frame and connected to the screw rod in a transmission manner, a guide rod arranged on both sides of the screw rod and parallel to the screw rod, a connecting frame arranged between the screw rod and the guide rod, a lifting seat arranged on the screw rod, a monitoring module arranged on the lifting seat, a dust cleaning rod arranged on one side of the guide rod, and a paddle arranged on the dust cleaning rod;

[0006] The driving mechanism drives the rotating frame to rotate and drives the lead screw to perform circumferential movement. The lead screw and the guide rod are both vertically arranged and parallel to each other. The upper end of the lead screw is in transmission connection with the driving end of the monitoring motor. The lifting seat is sleeved on the lead screw, and both sides of the lifting seat are slidably sleeved on the guide rod. The monitoring motor drives the lead screw to rotate and drives the lifting seat to lift on the lead screw. The middle part of the connecting frame is rotatably connected to the lead screw, and both sides are fixed to the guide rod. The dust cleaning rod is vertically arranged and parallel to the outside of the guide rod. The baffle is fixed to the outside of the dust cleaning rod and a plurality of baffles are arranged at intervals along the vertical direction of the dust cleaning rod.

[0007] It further includes a connecting plate arranged between the dust cleaning rod and the guide rod, and a swing motor arranged on the connecting plate; at least two connecting plates are provided and are respectively fixed to the upper end and the lower end of the guide rod. The upper end and the lower end of the dust cleaning rod are respectively rotatably connected to the connecting plate, and the swing motor is in transmission connection with one end of the dust cleaning rod.

[0008] The support frame includes a support plate, and a plurality of supporting feet annularly arranged at the lower end or the outer periphery of the support plate. At least three supporting feet are equidistantly arranged. The upper end of the supporting feet is fixed to the outer periphery or the lower end of the support plate, and the lower end is inclined outward. A plurality of ventilation holes are arranged on the support plate.

[0009] The driving mechanism includes a fixed column fixed to the lower end of the support plate, a rotating column coaxially arranged at the lower end of the fixed column, and a driving fan sleeved and fixed on the rotating column;

[0010] Both the fixed column and the rotating column are vertically and perpendicularly arranged. The upper end of the fixed column is fixed to the lower end of the support plate. The upper end of the rotating column is rotatably connected to the lower end of the fixed column. The driving fan rotates synchronously with the rotating column. The lower end of the rotating column is fixed to the center of the rotating frame.

[0011] The rotating frame includes an outer ring plate, a center plate arranged inside the outer ring plate, and a connecting plate arranged between the outer ring plate and the center plate. The outer ring plate and the center plate are concentrically arranged. The upper end of the center plate is fixed to the lower end of the rotating column. The outer ring plate is rotatably connected to the upper end of the lead screw.

[0012] It further includes an anti-blowing cylinder arranged at the lower end of the support plate. Avoidance holes for the anti-blowing cylinder to pass through are arranged in the fixed column and the rotating column, and on the rotating frame. The upper end of the anti-blowing cylinder is fixed to the support plate, and the lower end sequentially passes through the fixed column, the rotating column and the rotating frame through the avoidance holes and extends downward.

[0013] It also includes a flapping mechanism arranged at the lower end of the guide rod, the flapping mechanism includes a mounting frame fixed between the guide rods, an electric push rod arranged on the mounting frame, a rack arranged on the electric push rod and connected to the telescopic end of the electric push rod, a mounting seat arranged on the mounting frame and located below the rack, a gear rotatably arranged on the mounting seat, a hinged seat arranged at the lower end of the mounting seat, a flapping plate hinged to one side of the hinged seat, and a connecting rod arranged between the flapping plate and the gear;

[0014] The mounting frame is fixed between the guide rods and is located at the lower end of the screw rod and spaced from the screw rod. The telescopic end of the electric push rod is vertically downward and fixed to the upper end of the rack. One side of the rack is meshed with the gear. The upper end of the connecting rod is hinged to one side of the gear end face to form an eccentric connection. The lower end of the connecting rod is hinged to the flapping plate. The electric push rod drives the rack to move up and down and drives the gear to rotate. The rotation of the gear drives the flapping plate to swing on one side of the hinge seat through the connecting rod.

[0015] The gears, connecting rods and flapping plates are provided in two groups, teeth are provided on both sides of the rack, the gears are arranged side by side on the mounting seat, the lower end of the rack passes between the two gears and the two sides of the rack are respectively meshed with the two gears, the flapping plates are symmetrically arranged on both sides of the hinged seat, and the connecting rods are respectively hinged between the two gears and the two flapping plates.

[0016] The monitoring module includes a camera and a wind speed sensor.

[0017] The beneficial effect of the present invention is that it provides a cleaning device for a pulse bag dust collector, which is fixed on the partition and located in the filter bag, does not occupy other space, and only needs to be installed without changing the original structure. The design drives the rotating frame to rotate through the driving mechanism, and the rotation of the rotating frame drives the screw rod, guide rod, cleaning rod and paddle to move circumferentially along the inner wall of the filter bag, so that the filter bag is vibrated by the paddle to achieve the purpose of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the support frame and the back-blowing cylinder of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the rotating frame of the present invention;

[0021] Figure 4 yes Figure 1 A magnified view of middle;

[0022] Figure 5 It is a structural schematic diagram of the beating mechanism of the present invention;

[0023] Figure 6Reference diagram of the installation state of the dust cleaning device of the present invention and the bag filter.

[0024] In the attached drawings, 1 is a support frame, 2 is a driving mechanism, 3 is a rotating frame, 4 is a lead screw, 5 is a monitoring motor, 6 is a guide rod, 7 is a connecting frame, 8 is a lifting seat, 9 is a monitoring module, 10 is a dust cleaning rod, 11 is a baffle, 12 is a connecting plate, 13 is a swinging motor, 14 is a support plate, 15 is a support foot plate, 16 is a fixed column, 17 is a rotating column, 18 is a driving fan, 19 is an outer ring plate, 20 is a central plate, 21 is a reverse blowing cylinder, 22 is a mounting frame, 23 is an electric push rod, 24 is a rack, 25 is a mounting seat, 26 is a gear, 27 is a hinge seat, 28 is a flapping plate, 29 is a connecting rod, 30 is a box body, 31 is a partition plate, 32 is a mounting opening, 33 is a bag cylinder frame, 34 is a filter bag, 35 is a pulse pipeline, 36 is a pulse spray head. Detailed implementation manners

[0025] The structure of the pulse type bag filter applicable to the present invention will be described below, and in combination with the attached drawings, the technical solutions of the present invention will be clearly and completely described.

[0026] In the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not limit that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0027] The structure of the bag filter mainly includes a box body 30 with an air inlet and an air outlet, a partition plate 31 arranged in the box body 30 and dividing the inner cavity of the box body 30 into upper and lower two cavities, a mounting opening 32 arranged on the partition plate 31, a bag cylinder frame 33 arranged at the lower end of the partition plate 31 and corresponding to the mounting opening 32, and a filter bag 34 sleeved on the bag cylinder frame 33.

[0028] The air inlet is communicated with the cavity below the partition plate 31, the air outlet is communicated with the cavity above the partition plate 31, the mouth of the filter bag 34 is fixed on the mounting opening 32, the bag body of the filter bag 34 is sleeved outside the bag cylinder frame 33, the mouth of the filter bag 34 corresponds to the mounting opening 32, the bag cylinder frame 33 is a cylindrical structure adapted to the filter bag 34, and the dust-containing gas enters from the air inlet, passes through the filter bag 34 on the bag cylinder frame 33, enters the inside of the filter bag 34, then enters the cavity above the partition plate 31 from the mouth of the filter bag 34, that is, the mounting opening 32, and finally flows out from the air outlet to complete the filtration.

[0029] The structure of the pulse backwashing device mainly consists of a pulse pipeline 35 and a pulse spray head 36. The pulse pipeline 35 is arranged above the partition plate 31 and is connected to an external air source. The pulse spray head 36 is arranged above the installation port 32, and the pulse spray head 36 faces the filter bag 34 inside the installation port 32. For pulse backwashing, compressed air is transported through the pulse pipeline 35 to the pulse spray head 36, and then the pulse spray head 36 sprays into the filter bag 34. Dust will accumulate on the outer wall of the filter bag 34. By spraying compressed air from the inside to the outside of the filter bag 34, the dust on the outer wall of the filter bag 34 is blown off, and thus the dust cleaning is completed.

[0030] Based on the above structure of the pulse bag filter and aiming at the disadvantage that the above pulse bag filter needs to frequently perform backwashing and dust cleaning operations, the present invention designs a dust cleaning device applicable to the above pulse bag filter. It is fixed on the partition plate 31 and located inside the filter bag 34, without occupying other spaces, and only needs to be added to the structure of the above pulse bag filter without changing the original structure, greatly reducing the transformation cost and operation difficulty.

[0031] As Figures 1-6 shown, the present invention provides a dust cleaning device for a pulse bag filter, including a support frame 1, a driving mechanism 2 arranged on the support frame 1, and a rotating frame 3 drivingly connected to the driving mechanism 2. It also includes a lead screw 4 rotatably arranged at one side of the lower end of the rotating frame 3, a monitoring motor 5 arranged on the rotating frame 3 and drivingly connected to the lead screw 4, guide rods 6 arranged on both sides of the lead screw 4 and parallel to the lead screw 4, a connecting frame 7 arranged between the lead screw 4 and the guide rods 6, a lifting seat 8 arranged on the lead screw 4, a monitoring module 9 arranged on the lifting seat 8, a dust cleaning rod 10 arranged on one side of the guide rod 6, and a baffle 11 arranged on the dust cleaning rod 10; the driving mechanism 2 drives the rotating frame 3 to rotate and drives the lead screw 4 to perform circumferential movement. The lead screw 4 and the guide rods 6 are both vertically arranged and parallel to each other. The upper end of the lead screw 4 is drivingly connected to the driving end of the monitoring motor 5. The lifting seat 8 is sleeved on the lead screw 4, and both sides of the lifting seat 8 are slidably sleeved on the guide rods 6. The monitoring motor 5 drives the lead screw 4 to rotate and drives the lifting seat 8 to lift on the lead screw 4. The middle of the connecting frame 7 is rotatably connected to the lead screw 4, and both sides are fixed to the guide rods 6. The dust cleaning rod 10 is vertically and parallelly arranged outside the guide rod 6. The baffle 11 is fixed outside the dust cleaning rod 10 and a plurality of baffles are arranged at intervals along the vertical direction of the dust cleaning rod 10.

[0032] The support frame 1 is installed on the mounting opening 32 of the bag-type dust collector partition 31, and is located at the upper end of the mounting opening 32, playing a fixed supporting role. The driving mechanism 2 is installed on the support frame 1, and is used to drive the rotating frame 3 to rotate. The rotating frame 3 is located in the mounting opening 32 of the bag-type dust collector, that is, the bag opening of the filter bag 34. The screw rod 4 is vertically inserted downward into the filter bag 34. The upper end of the screw rod 4 is rotatably connected to the lower end of one side of the rotating frame 3, adjacent to the filter bag 34, reducing the space occupied by the filter bag 34. When the screw rod 4 moves circumferentially under the drive of the rotating frame 3, the influence on the filtering effect of the filter bag 34 can also be reduced.

[0033] The guide rods 6 are fixed on both sides of the connecting frame 7, and the connecting frame 7 is mounted on the screw rod 4. The connecting frame 7 and the screw rod 4 are rotationally connected and longitudinally limited, that is, the rotation of the screw rod 4 will not drive the connecting frame 7 to rotate synchronously, and the connecting frame 7 will not slide up and down on the screw rod 4.

[0034] The lifting seat 8 is adapted to be installed with the screw rod 4, that is, the lifting seat 8 is provided with a sleeve hole adapted to the screw rod 4, and the inner wall of the sleeve hole is adapted to the thread on the outer periphery of the screw rod 4. The rotation of the screw rod 4 can drive the lifting seat 8 to perform lifting and lowering movements on the screw rod 4. The lifting seat 8 is slidably connected with the guide rod 6, that is, sleeve holes adapted to the guide rod 6 are provided on both sides of the lifting seat 8, and the inner wall of the sleeve hole and the outer periphery of the guide rod 6 are smooth surfaces, forming a sliding sleeve connection.

[0035] The monitoring module 9 on the lifting seat 8 can monitor the environment inside the filter bag 34. The monitoring module 9 can be a camera, which can collect images inside the filter bag 34 by sliding the lifting seat 8 up and down. It can also be a wind speed sensor, which can monitor the gas flow rate in the filter bag 34 and provide reference data for the user. Due to the existence of the connecting frame 7, it is necessary to arrange the lifting seat 8 and the monitoring module 9 according to the number and position of the connecting frame 7. A group of lifting seats 8 and monitoring modules 9 are arranged between every two adjacent connecting frames 7 to ensure that the entire filter bag 34 can be monitored. The guide rod 6 can improve the sliding stability of the lifting seat 8, and can also cooperate with the screw rod to form a frame structure to further improve the stability of the overall structure.

[0036] A cleaning rod 10 is installed on the outside of each of the two guide rods 6. A paddle 11 is installed at a position corresponding to the inner wall of each cleaning rod 10 and the filter bag 34. The end of the paddle 11 contacts the inner wall of the filter bag 34. The end of the paddle 11 is in an arc shape to avoid scratching the filter bag 34.

[0037] In this design, the driving mechanism 2 drives the rotating frame 3 to rotate, and the rotation of the rotating frame 3 drives the screw rod 4, the guide rod 6, the cleaning rod 10 and the paddle plate 11 to move circumferentially along the inner wall of the filter bag 34, so that the filter bag 34 is vibrated by the paddle movement to achieve the purpose of cleaning, and the paddle plate 11 has little resistance to the circumferential movement, and the impact on the filter bag 34 is also greatly reduced.

[0038] The rotational connections described above and below are all conventional technical means in the art. This design does not further specify the structure and will not elaborate specifically. For example, a bearing connection can be adopted. A bearing seat is installed on the rotating frame 3, and the upper end of the lead screw 4 is fixed in the middle hole of the bearing inside the bearing seat, thus realizing the rotational connection.

[0039] In this design, the baffle 11 is installed when the outer wall of the filter bag 34 is in a flat state. After installation, the baffle 11 abuts against the inner wall of the filter bag 34 in a flat state. And this design conducts dust cleaning when the bag filter is in a working state. The filter bag 34 in the working state is affected by the dust-containing air flow and is in a state of inward contraction. The baffle 11 will push the inner wall of the corresponding filter bag 34 outwards, and the filter bag 34 remains in the inward contraction state. When the baffle 11 moves circumferentially along the filter bag 34, it will cause the filter bag 34 to agitate, and the dust cleaning effect is better. The position of the baffle 11 corresponds to the position where the filter bag 34 will contract, that is, the gap position of the cloth bag cylinder frame 33.

[0040] As Figure 1 shown, it further includes a connecting plate 12 arranged between the dust cleaning rod 10 and the guide rod 6, and a swing motor 13 arranged on the connecting plate 12; at least two connecting plates 12 are provided and are respectively fixed at the upper end and the lower end of the guide rod 6. The upper end and the lower end of the dust cleaning rod 10 are respectively rotationally connected to the connecting plate 12, and the swing motor 13 is drivingly connected to one end of the dust cleaning rod 10.

[0041] One ends of the two connecting plates 12 are respectively fixed at the upper and lower ends of the guide rod 6, which will not interfere with the sliding of the lifting seat 8. The connection mode between the dust cleaning rod 10 and the other ends of the connecting plates 12 adopts rotational connection. The driving end of the swing motor 13 is directly fixed to one end of the dust cleaning rod 10 downward. The swing motor 13 drives the dust cleaning rod 10 to rotate, which can adjust the pressing force between the baffle 11 and the filter bag 34. When using filter bags 34 of different materials, it can effectively reduce the wear on the filter bag 34. At the same time, during dust cleaning, the swing motor 13 can be selectively used to drive the dust cleaning rod 10 to swing, so that the baffle 11 pats the inner wall of the filter bag 34, improving the vibration frequency and vibration force of the filter bag 34, and further improving the dust cleaning effect.

[0042] As Figure 2 shown, the support frame 1 includes a support plate 14 and a plurality of support feet 15 annularly arranged at the lower end or the outer periphery of the support plate 14. At least three support feet 15 are arranged at equal intervals. The upper end of the support feet 15 is fixed to the outer periphery or the lower end of the support plate 14, and the lower end is inclined outwards. A plurality of ventilation holes are arranged on the support plate 14.

[0043] The support frame 1 adopts a triangular support structure. The three support feet plates 15 jack up the support plate 14 upward, so that the support plate 14 does not directly block the mouth of the filter bag 34. Combined with the hollow support plate 14, it can effectively reduce the influence on the air flow. The support plate 14 is a flat plate structure, which is convenient for the installation of other components. The whole structure has stable support and low self-weight.

[0044] As Figures 2-3 shown, the driving mechanism 2 includes a fixed column 16 fixed to the lower end of the support plate 14, a rotating column 17 coaxially arranged at the lower end of the fixed column 16, and a driving fan 18 sleeved and fixed on the rotating column 17; both the fixed column 16 and the rotating column 17 are vertically arranged perpendicular to each other. The upper end of the fixed column 16 is fixed to the lower end of the support plate 14, the upper end of the rotating column 17 is rotatably connected to the lower end of the fixed column 16, the driving fan 18 rotates synchronously with the rotating column 17, and the lower end of the rotating column 17 is fixed to the center of the rotating frame 3.

[0045] The fixed column 16 is fixedly connected to the support plate 14, the rotating column 17 is rotatably connected to the fixed column 16, and the driving fan 18 is sleeved and fixed on the rotating column 17. The driving fan 18 refers to including a sleeve for sleeving and fixing on the rotating column 17 in the middle and a plurality of fan blades circumferentially arranged on the outer periphery of the sleeve. The driving fan 18 is located above the installation opening 32 of the partition plate 31. When the air flow passes through, it drives the driving fan 18 to rotate. The rotation of the driving fan 18 drives the rotation of the rotating frame 3, thereby driving the screw rod 4, the guide rod 6, the dust cleaning rod 10 and the baffle 11 to perform circumferential movement in the filter bag 34. Without the need to rely on a motor and without separate control, when the bag filter is in a working state, the dust cleaning device is also in a dust cleaning working state, which simplifies the structures required for driving and transmission, has low cost and is convenient for installation.

[0046] As Figure 3 shown, the rotating frame 3 includes an outer ring plate 19, a center plate 20 arranged inside the outer ring plate 19, and a connecting plate 12 arranged between the outer ring plate 19 and the center plate 20. The outer ring plate 19 and the center plate 20 are concentrically arranged. The upper end of the center plate 20 is fixed to the lower end of the rotating column 17, and the outer ring plate 19 is rotatably connected to the upper end of the screw rod 4.

[0047] The center position of the center plate 20 is the fixed position of the rotating frame 3 and the rotating column 17. The size of the outer ring plate 19 is adapted to the installation opening 32, and it can be placed through the installation opening 32 and located at the mouth of the filter bag 34. The rotating frame 3 with a hollow structure formed by the outer ring plate 19 and the center plate 20 greatly reduces the obstruction of the rotating frame 3 to the passing air flow at the bag mouth, and reduces the self-weight and the burden on the support frame 1.

[0048] As Figures 1-3As shown, it further includes a backflush cylinder 21 provided at the lower end of the support plate 14. Avoidance holes for the backflush cylinder 21 to pass through are provided in the fixed column 16 and the rotating column 17, and on the rotating frame 3. The upper end of the backflush cylinder 21 is fixed to the support plate 14, and the lower end sequentially passes through the fixed column 16, the rotating column 17 and the rotating frame 3 through the avoidance holes and extends downward.

[0049] Both the fixed column 16 and the rotating column 17 are cylindrical structures with through holes in the center. A through hole is also provided at the position of the central plate 20 of the rotating frame 3 to form an avoidance hole. The backflush cylinder 21 is inserted into the avoidance hole. The backflush cylinder 21 is inserted from above the support frame 1 and extends downward into the filter bag 34 at the installation port 32. The pulse nozzle 36 is inserted into the upper end of the backflush cylinder 21. The backflush air flow enters the filter bag 34 along the backflush cylinder 21 to complete backflush cleaning. This design can retain the backflush cleaning function of the original bag filter and does not require changing the original structure. When the bag filter is operating, the cleaning device of this design performs cleaning. When the bag filter stops working, the original backflush device performs cleaning. The two are used in combination, greatly improving the cleaning effect and eliminating the need for the bag filter to start and stop frequently.

[0050] As Figures 4-5 As shown, it further includes a flapping mechanism provided at the lower end of the guide rod 6. The flapping mechanism includes a mounting frame 22 fixed between the guide rods 6, an electric push rod 23 provided on the mounting frame 22, a rack 24 provided on the electric push rod 23 and connected to the telescopic end of the electric push rod 23, a mounting seat 25 provided on the mounting frame 22 and located below the rack 24, a gear 26 rotatably provided on the mounting seat 25, a hinge seat 27 provided at the lower end of the mounting seat 25, a flapping plate 28 hinged to one side of the hinge seat 27, and a connecting rod 29 provided between the flapping plate 28 and the gear 26; The mounting frame 22 is fixed between the guide rods 6 and is located at the lower end of the lead screw 4 and is spaced from the lead screw 4. The telescopic end of the electric push rod 23 is vertically downward and fixed to the upper end of the rack 24. One side of the rack 24 meshes with the gear 26. The upper end of the connecting rod 29 is hinged to one side of the end face of the gear 26 to form an eccentric connection. The lower end of the connecting rod 29 is hinged to the flapping plate 28. The electric push rod 23 drives the rack 24 to move up and down and drives the gear 26 to rotate. The rotation of the gear 26 drives the flapping plate 28 to swing on one side of the hinge seat 27 through the connecting rod 29.

[0051] The flapping mechanism is installed below the guide rod 6 and the lead screw 4 to clean the bottom of the filter bag 34. The electric push rod 23 drives the rack 24 to descend vertically, driving the gear 26 on the mounting seat 25 to rotate. A connecting rod 29 is hinged at the eccentric position of the gear 26. The rotation of the gear 26 drives the connecting rod 29 to move downward, pushing the outer end of the flapping plate 28 to swing downward, realizing the flapping of the bottom of the filter bag 34. The upper end of the hinge seat 27 is fixed to the lower end of the mounting seat 25 for installing and supporting the flapping plate 28. The inner end of the flapping plate 28 is hinged to the mounting seat 25, with a more stable structure. And the dust cleaning device in this design abuts against the inner wall of the filter bag 34 and moves in a circular motion along the inner wall of the filter bag 34. The flapping mechanism performs circumferential motion flapping along the bottom edge of the filter bag 34 without affecting the passage of air flow.

[0052] As Figures 4-5 shown, there are two sets of the gear 26, the connecting rod 29 and the flapping plate 28. Tooth teeth are arranged on both sides of the rack 24. The gears 26 are arranged side by side on the mounting seat 25. The lower end of the rack 24 passes between the two gears 26, and both sides of the rack 24 are respectively meshed with the two gears 26. The flapping plates 28 are symmetrically arranged on both sides of the hinge seat 27. The connecting rods 29 are respectively hinged between the two gears 26 and the two flapping plates 28.

[0053] Without adding and changing the driving and transmission structures, changing from one flapping plate 28 to two flapping plates 28 can achieve a better dust cleaning effect with flapping vibration.

[0054] As Figure 1 shown, the monitoring module 9 includes a camera and an air velocity sensor.

[0055] The monitoring module 9 in this design mainly includes a camera and an air velocity sensor, which can monitor the image inside the filter bag 34 and the air flow velocity.

Claims

1. A dust cleaning device for a pulse bag filter, comprising a support frame (1), a driving mechanism (2) arranged on the support frame (1), and a rotating frame (3) in transmission connection with the driving mechanism (2), characterized in that: It further includes a lead screw (4) rotatably arranged at one side of the lower end of the rotating frame (3), a monitoring motor (5) arranged on the rotating frame (3) and in transmission connection with the lead screw (4), guide rods (6) arranged on both sides of the lead screw (4) and parallel to the lead screw (4), a connecting frame (7) arranged between the lead screw (4) and the guide rods (6), a lifting seat (8) arranged on the lead screw (4), a monitoring module (9) arranged on the lifting seat (8), a dust cleaning rod (10) arranged on one side of the guide rod (6), and a baffle (11) arranged on the dust cleaning rod (10); The driving mechanism (2) drives the rotating frame (3) to rotate and drives the lead screw (4) to perform circumferential movement. The lead screw (4) and the guide rods (6) are both vertically arranged and parallel to each other. The upper end of the lead screw (4) is in transmission connection with the driving end of the monitoring motor (5). The lifting seat (8) is sleeved on the lead screw (4), and both sides of the lifting seat (8) are slidably sleeved on the guide rods (6). The monitoring motor (5) drives the lead screw (4) to rotate and drives the lifting seat (8) to lift on the lead screw (4). The middle of the connecting frame (7) is rotatably connected to the lead screw (4), and both sides are fixed to the guide rods (6). The dust cleaning rod (10) is vertically and parallelly arranged outside the guide rod (6). The baffle (11) is fixed outside the dust cleaning rod (10) and is arranged at intervals in the vertical direction of the dust cleaning rod (10); It further includes a connecting plate (12) arranged between the dust cleaning rod (10) and the guide rod (6), and a swing motor (13) arranged on the connecting plate (12); At least two connecting plates (12) are provided and are respectively fixed to the upper end and the lower end of the guide rod (6). The upper end and the lower end of the dust cleaning rod (10) are respectively rotatably connected to the connecting plate (12). The swing motor (13) is in transmission connection with one end of the dust cleaning rod (10).

2. The dust cleaning device of a pulse bag filter according to claim 1, characterized in that: The support frame (1) includes a support plate (14) and a plurality of support feet (15) annularly arranged at the lower end or the outer periphery of the support plate (14). At least three support feet (15) are equidistantly arranged. The upper end of the support feet (15) is fixed to the outer periphery or the lower end of the support plate (14), and the lower end is inclined outward. A plurality of ventilation holes are provided on the support plate (14).

3. The dust cleaning device of a pulse bag filter according to claim 2, characterized in that: The driving mechanism (2) includes a fixed column (16) fixed to the lower end of the support plate (14), a rotating column (17) coaxially arranged at the lower end of the fixed column (16), and a driving fan (18) sleeved and fixed on the rotating column (17); Both the fixed column (16) and the rotating column (17) are vertically and perpendicularly arranged. The upper end of the fixed column (16) is fixed to the lower end of the support plate (14). The upper end of the rotating column (17) is rotatably connected to the lower end of the fixed column (16). The driving fan (18) rotates synchronously with the rotating column (17). The lower end of the rotating column (17) is fixed to the center of the rotating frame (3).

4. The dust cleaning device of a pulse bag filter according to claim 3, characterized in that: The rotating frame (3) includes an outer ring plate (19), a central plate (20) arranged inside the outer ring plate (19), and a connecting plate (12) arranged between the outer ring plate (19) and the central plate (20). The outer ring plate (19) and the central plate (20) are concentrically arranged. The upper end of the central plate (20) is fixed to the lower end of the rotating column (17), and the outer ring plate (19) is rotatably connected to the upper end of the lead screw (4).

5. The dust cleaning device of a pulse bag filter according to claim 3, characterized in that: It further includes an air back-blowing cylinder (21) arranged at the lower end of the support plate (14). Avoidance holes for the air back-blowing cylinder (21) to pass through are arranged in the fixed column (16) and the rotating column (17), and on the rotating frame (3). The upper end of the air back-blowing cylinder (21) is fixed to the support plate (14), and the lower end sequentially passes through the fixed column (16), the rotating column (17) and the rotating frame (3) through the avoidance holes and extends downward.

6. The dust cleaning device of a pulse bag filter according to claim 1, characterized in that: It further includes a flapping mechanism arranged at the lower end of the guide rod (6). The flapping mechanism includes a mounting frame (22) fixed between the guide rods (6), an electric push rod (23) arranged on the mounting frame (22), a rack (24) arranged on the electric push rod (23) and connected to the telescopic end of the electric push rod (23), a mounting seat (25) arranged on the mounting frame (22) and located below the rack (24), a gear (26) rotatably arranged on the mounting seat (25), a hinge seat (27) arranged at the lower end of the mounting seat (25), a flapping plate (28) hinged to one side of the hinge seat (27), and a connecting rod (29) arranged between the flapping plate (28) and the gear (26); The mounting frame (22) is fixed between the guide rods (6), located at the lower end of the lead screw (4) and spaced from the lead screw (4). The telescopic end of the electric push rod (23) is vertically downward and fixed to the upper end of the rack (24). One side of the rack (24) meshes with the gear (26). The upper end of the connecting rod (29) is hinged to one side of the end face of the gear (26) to form an eccentric connection. The lower end of the connecting rod (29) is hinged to the flapping plate (28). The electric push rod (23) drives the rack (24) to move up and down and drives the gear (26) to rotate. The rotation of the gear (26) drives the flapping plate (28) to swing on one side of the hinge seat (27) through the connecting rod (29).

7. The dust cleaning device of a pulse bag filter according to claim 6, characterized in that: Two groups of the gear (26), the connecting rod (29) and the flapping plate (28) are provided. Tooth teeth are arranged on both sides of the rack (24). The gears (26) are arranged side by side on the mounting seat (25). The lower end of the rack (24) passes between the two gears (26), and both sides of the rack (24) mesh with the two gears (26) respectively. The flapping plates (28) are symmetrically arranged on both sides of the hinge seat (27). The connecting rods (29) are respectively hinged between the two gears (26) and the two flapping plates (28).

8. The dust cleaning device of a pulse bag filter according to claim 1, characterized in that: The monitoring module (9) includes a camera and an air speed sensor.

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