Bag-type dust collector

Abstract

The utility model provides a bag-type dust remover in the technical field of dust removal equipment, which comprises a shell and a dust hopper connected with the bottom of the shell, an air inlet is arranged on the outer wall of the dust hopper, a dust outlet is arranged at the bottom of the dust hopper, an air outlet is arranged at the top of the shell, a mounting table is connected onto the inner wall of the shell, and a swinging device is connected onto the mounting table. The swinging device comprises a moving part, a motor, a rotating part and a swinging part, the moving part is connected with the mounting table, the interior of the moving part is hollow, a through hole allowing the filter bag to penetrate through is formed in the moving part, one side of the top surface of the moving part is connected with the motor, the output end of the motor is connected with the rotating part, and the rotating part is connected with the swinging part; and a rotating rod is arranged between the rotating piece and the swinging piece. The mounting table is arranged on the inner wall of the bottom of the bag-type dust collector shell and connected with the swing device, the motor drives the rotating part and the swing part to move, the swing part continuously shakes the filter bag, dust is effectively cleaned, and incomplete dust cleaning caused by insufficient dust cleaning gas pressure is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a bag dust collector. Background Art

[0002] As one of the most widely used dust collection devices, bag filters are widely used across multiple industries due to their efficient dust removal performance and wide range of applications. However, in actual operation, bag filters face many challenges, one of the most prominent of which is the difficulty in effectively removing dust from the filter bags due to insufficient cleaning pressure.

[0003] Traditional bag filters typically use a pulse jet method for cleaning, which uses high-pressure gas to instantly impact the filter bags, causing dust adhering to their surfaces to fall off and fall into the ash hopper below. This process places high demands on the cleaning gas pressure, and only when the pressure reaches a certain value can the dust be completely removed. However, in actual applications, due to various factors such as unstable air source, high pipeline resistance, and pulse valve failure, insufficient cleaning gas pressure often occurs. This not only reduces cleaning efficiency but can also cause filter bag blockage, seriously affecting the performance and service life of the bag filter. Summary of the Invention

[0004] The problem to be solved by the utility model is to provide a device which can still remove dust on the filter bag when the air pressure in the pulse jet device is insufficient, thereby ensuring the working performance and service life of the bag dust collector.

[0005] The technical solution adopted by the present utility model is: a bag dust collector, comprising an outer shell and an ash hopper connected to the bottom of the outer shell, the outer wall of the ash hopper is provided with an air inlet for dust gas to enter, a dust outlet is provided at the bottom of the ash hopper, and the top of the outer shell is provided with an air outlet for clean air to be discharged, the inner wall of the outer shell is connected with a mounting platform, the mounting platform is connected with a swinging device, the swinging device comprises a moving part, a motor, a rotating part, and a swinging part, wherein the moving part is connected to the mounting platform, the interior of the moving part is hollow, and the moving part is provided with a through hole for the filter bag to pass through, one side of the top surface of the moving part is connected to the motor, the output end of the motor is connected to the rotating part, the rotating part is connected to the swinging part, and a rotating rod is provided between the rotating part and the swinging part.

[0006] The above structure has the following beneficial effects:

[0007] (1) By setting a mounting platform on the inner wall of the bottom of the bag filter housing and connecting the mounting platform to the swing device, the motor drives the rotating part and the swing part to move, so that the swing part continuously shakes the filter bag, which can effectively clean the dust on the filter bag and avoid the occurrence of incomplete cleaning caused by insufficient cleaning gas pressure. Through holes are set on the top and bottom surfaces of the moving part, so that the filter bag can pass through the through holes, ensuring that the swing device can perform the cleaning work.

[0008] (2) The arrangement of the moving parts can prevent the components installed inside the moving parts from being disturbed by foreign matter such as dust, thereby effectively extending the service life of the components.

[0009] Preferably, the rotating rod is arranged at an eccentric position of the rotating member.

[0010] The rotating rod is arranged at an eccentric position of the rotating part and connected to the swing part, so that the rotational motion of the rotating part can be converted into the linear reciprocating motion of the swing part, thereby realizing the dust cleaning work of the swing part.

[0011] Preferably, the swinging member includes a sliding rod, a semicircular plate and a connecting plate, the top surface of the sliding rod is provided with at least two groups of oppositely arranged semicircular plates, and one side of the semicircular plate is fixed by the connecting plate.

[0012] By arranging at least two groups of oppositely arranged semicircular plates on the sliding rod and fixing one side of the semicircular plate through a connecting plate, the swinging part can perform cleaning work from multiple directions when cleaning, and the connecting plate ensures that the multiple groups of semicircular plates can perform linear reciprocating motion synchronously.

[0013] Preferably, a sliding groove is provided on the bottom surface inside the moving part, and the sliding rod is slidably connected to the sliding groove.

[0014] By setting a slide groove on the bottom surface of the moving part and slidingly connecting the sliding rod with the slide groove, the swinging part can move smoothly along the preset trajectory during movement, avoiding shaking and deviation of the swinging part during movement, and ensuring the stability and reliability of the cleaning process.

[0015] Preferably, a moving device is provided on both sides of the moving member, and the moving device includes a rack and a driving mechanism, wherein the driving mechanism is connected to the moving member, and the driving mechanism is connected to the rack.

[0016] By arranging moving devices on both sides of the moving part, the moving part is driven to move along the rack by the driving mechanism in the moving device, thereby further increasing the working range of the swinging device and enabling the swinging device to clean different positions of the filter bag.

[0017] Preferably, a pulse blowing device is provided on the top of the shell, and the pulse blowing device includes an air bag, an electromagnetic pulse valve, and a blowing pipe. The air bag is installed on the outside of the shell, and the blowing pipe is installed inside the shell. The air bag and the blowing pipe are connected through the electromagnetic pulse valve, and the blowing pipe is provided with a blowing hole for injecting air flow.

[0018] The pulse jet device enables the air bag to pass through the electromagnetic pulse valve and the jet pipe, and instantly impact the filter bag with high-pressure airflow, so that the attached dust falls off, and cooperates with the mechanical shaking of the swing device to further improve the cleaning effect.

[0019] Preferably, a porous plate is provided below the blowing pipe, the porous plate is connected to the inner wall of the shell, and a venturi tube is provided on the porous plate, and a filter bag is installed on the venturi tube.

[0020] The design of the Venturi tube can speed up the airflow, increase the impact of the airflow on the filter bag, further enhance the cleaning effect, and ensure that the dust on the surface of the filter bag can be effectively cleaned.

[0021] Preferably, the swing device and the pulse jet device are connected to a controller.

[0022] By connecting the swing device and the pulse spray device to the controller, the cleaning process can be precisely controlled through the controller, including parameters such as the swing frequency and the time interval of the pulse spray, making the cleaning process more intelligent and automated, and improving the cleaning efficiency and reliability.

[0023] Preferably, brushes are provided at the top and bottom of the driving mechanism, and the ends of the brushes abut against the rack.

[0024] By setting brushes at the top and bottom of the drive mechanism, the brushes will clean the dust on the rack when the drive mechanism moves, preventing the drive mechanism from getting stuck during movement, ensuring the smooth operation of the drive mechanism, avoiding failures caused by dust accumulation, and improving the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural diagram of embodiment 1 of the present utility model.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the swing device in Example 1 of the present utility model.

[0028] Figure 3 It is a cross-sectional view of the swing device in Example 1 of the present utility model.

[0029] Figure 4 It is a cross-sectional view of the moving part in the swing device in Example 1 of the utility model.

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the swing member in the swing device in Example 1 of the utility model.

[0031] Figure 6 It is a structural diagram of embodiment 2 of the present utility model.

[0032] Figure 7 It is a structural diagram of embodiment 3 of the present utility model.

[0033] Figure numerals: outer shell 1, ash hopper 2, air inlet 3, air outlet 4, air bag 5, electromagnetic pulse valve 6, blowing pipe 7, porous plate 8, venturi tube 9, filter bag 10, controller 11, mounting platform 12, fixed plate 13, moving part 14, through hole 1401, slide rail 1402, motor 15, rotating part 16, rotating rod 17, swinging part 18, slide 1801, semicircular plate 1802, connecting plate 1803, sliding rod 1804, rack 19, drive mechanism 20, brush 21. DETAILED DESCRIPTION

[0034] The following will be combined with the Figure 1-7 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] Example 1

[0037] The following is further described in conjunction with specific embodiments. Figure 1-5As shown, this embodiment is a bag dust collector, comprising a housing 1, with an ash hopper 2 connected to the bottom of the housing 1 by welding, and support legs for support are also welded to the bottom of the housing 1, wherein an air inlet 3 for dust gas to enter is provided on the outer wall of the ash hopper 2, and a dust outlet is provided at the bottom of the ash hopper 2, and an air outlet 4 for discharging filtered clean air is provided at the top of the housing 1. A pulse spray device is provided at the top of the housing 1, and the pulse device is connected to the controller 11 by a cable, and the pulse spray device is set to spray by the controller 11. The spray device includes an air bag 5, an electromagnetic pulse valve 6, and a spray pipe 7, wherein the air bag 5 is installed on the outside of the housing 1 and is threadedly connected to the electromagnetic pulse valve 6, and a spray pipe 7 is provided inside the housing 1 and connected to the electromagnetic pulse valve 6, and a spray hole for spraying air is also provided on the spray pipe 7. A porous plate 8 is connected to the bottom of the blowing pipe 7, wherein a venturi tube 9 is provided on the porous plate 8, and the filter bag 10 is vertically hung on the venturi tube 9 through the porous plate 8. The flow rate of the air flow is accelerated through the venturi tube 9 to better achieve dust removal for the filter bag 10.

[0038] A mounting platform 12 is provided on the inner wall of the housing 1, and the mounting platform 12 is connected to a fixed plate 13 by bolts. The fixed plate 13 is connected to a swinging device, and the swinging device includes a moving part 14, a motor 15, a rotating part 16, a rotating rod 17, and a swinging part 18. The moving part 14 adopts a rectangular box with a hollow interior, and through holes 1401 are opened on the top and bottom surfaces of the moving part 14 to facilitate the filter bag 10 to pass through the through holes 1401; a motor 15 is provided on one side of the top surface of the moving part 14, and the output end of the motor 15 is connected to the rotating part 16 provided inside the moving part 14, and the rotating part 16 is on the side away from the motor 15. A rotating rod 17 is provided, which is connected to an oscillating member 18. The oscillating member 18 is composed of a sliding rod 1804, a semicircular plate 1802, and a connecting plate 1803. Multiple sets of semicircular plates 1802 are arranged on the top surface of the sliding rod 1804, and are connected on one side of the semicircular plates 1802 by a connecting plate 1803, so that the multiple sets of semicircular plates 1802 can oscillate synchronously. A chute 1801 is provided on the bottom surface of the movable plate, which is slidably connected to the sliding rod 1804, so that the oscillating member 18 can move along a preset trajectory when cleaning the filter bag 10. The oscillating device is also connected to a controller 11, which can control parameters such as the oscillation frequency of the oscillating device.

[0039] Working principle:

[0040] When the dust gas enters the bag dust collector through the air inlet 3, the dust gas will pass through the filter bag 10, and the dust particles will be intercepted and attached to the surface of the filter bag 10, while the clean air will be discharged from the air outlet 4 through the filter bag 10. As the filtration process continues, a layer of dust gradually accumulates on the surface of the filter bag 10, and as time goes by, the dust forms a dust cake, which becomes thicker and thicker, resulting in a large pressure difference between the inside and outside of the filter bag 10, causing the ventilation volume and efficiency of the dust collector to decrease. At this time, the compressed air is quickly released through the pulse jet device, forming a strong airflow to impact the filter bag 10, so that the dust attached to the surface of the filter bag 10 is removed. However, as the pressure in the air bag 5 is insufficient, the dust attached to the filter bag 10 may not be effectively removed. Therefore, a swinging device is provided inside the bag collector, and the swinging device is controlled by the controller 11, so that the motor 15 drives the rotating part 16, and the rotating rod 17 provided on the rotating part 16 is connected to the swinging part 18, thereby driving the swinging part 18 to press the chute 1801 to perform reciprocating motion. By continuously shaking the filter bag 10, the dust attached to the filter bag 10 falls off, which makes up for the poor dust cleaning caused by insufficient compressed air pressure in the bubble.

[0041] Example 2

[0042] like Figure 6 As shown, this embodiment adds a moving device on the basis of embodiment 1, and the moving device includes a vertically arranged rack 19, and a porous plate 8 and a mounting platform 12 are respectively provided at both ends of the rack 19. A driving mechanism 20 is provided at a position of the swinging device near the rack 19, and a gear box is provided in the driving mechanism 20 and connected to the rack 19, and a driving motor is provided for driving, and the driving mechanism 20 is connected to the swinging device.

[0043] Working principle:

[0044] By arranging moving devices on both sides of the swinging device and connecting the driving device in the moving device with the vertically arranged rack 19, the working range of the swinging device is expanded, and the swinging device will be displaced following the movement of the driving mechanism 20, so that different positions of the filter bag 10 can be shaken more effectively, making the dust cleaning work more efficient.

[0045] Example 3

[0046] like Figure 7 As shown, this embodiment adds a brush 21 on the basis of embodiment 2. The brush 21 will clean the dust on the rack 19 while the driving device is moving, preventing the driving device from getting stuck during movement, thereby reducing the dust removal efficiency.

[0047] Directional terms used in this disclosure, such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," to indicate positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this disclosure. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations on this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0048] The standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bag dust collector comprising a housing and an ash hopper connected to the bottom of the housing, wherein the outer wall of the ash hopper is provided with an air inlet for dust gas to enter, a dust outlet is provided at the bottom of the ash hopper, and the top of the housing is provided with an air outlet for clean air to be discharged, characterized in that: A mounting platform is connected to the inner wall of the shell, and the mounting platform is connected to a swinging device. The swinging device includes a moving part, a motor, a rotating part, and a swinging part, wherein the moving part is connected to the mounting platform, the interior of the moving part is hollow, and the moving part is provided with a through hole for the filter bag to pass through, one side of the top surface of the moving part is connected to the motor, the output end of the motor is connected to the rotating part, the rotating part is connected to the swinging part, and a rotating rod is provided between the rotating part and the swinging part.

2. A bag dust collector according to claim 1, characterized in that: The rotating rod is arranged at an eccentric position of the rotating member.

3. A bag dust collector according to claim 2, characterized in that: The swinging member includes a sliding rod, a semicircular plate and a connecting plate. The top surface of the sliding rod is provided with at least two groups of semicircular plates arranged opposite to each other, and one side of the semicircular plate is fixed by the connecting plate.

4. A bag dust collector according to claim 3, characterized in that: A sliding groove is provided on the bottom surface inside the moving part, and the sliding rod is slidably connected to the sliding groove.

5. The bag dust collector according to claim 4, characterized in that: A moving device is provided on both sides of the moving member, and the moving device comprises a rack and a driving mechanism, wherein the driving mechanism is connected to the moving member, and the driving mechanism is connected to the rack.

6. The bag dust collector according to claim 5, characterized in that: A pulse blowing device is provided on the top of the shell, and the pulse blowing device includes an air bag, an electromagnetic pulse valve, and a blowing pipe. The air bag is installed on the outside of the shell, and the blowing pipe is installed inside the shell. The air bag and the blowing pipe are connected through the electromagnetic pulse valve, and the blowing pipe is provided with a blowing hole for injecting air flow.

7. The bag dust collector according to claim 6, characterized in that: A porous plate is provided below the blowing pipe, the porous plate is connected to the inner wall of the shell, and a venturi tube is provided on the porous plate, and a filter bag is installed on the venturi tube.

8. The bag dust collector according to claim 7, characterized in that: The swing device and the pulse jet device are connected with a controller.

9. The bag dust collector according to claim 8, characterized in that: A brush is provided on the top of the driving mechanism, and the end of the brush abuts against the rack.

Images