Cloth bag type dust collector

Abstract

The invention relates to a cloth bag type dust collector, and belongs to the technical field of dust collection equipment, the cloth bag type dust collector comprises a support and a shell, the shell is fixedly connected with the support, a dust hopper is fixed at the bottom of the shell, an air inlet pipe is fixed on the dust hopper, an air outlet pipe is fixed on the shell, a plurality of dust collection cloth bags are arranged in the shell, and a mounting plate is horizontally fixed in the shell; the plurality of dust collection bags are detachably connected with the mounting plate, an electromagnetic pulse valve and a blowing pipe which are used for blowing air into the dust collection bags are fixed on the shell, a supporting frame is detachably connected into the dust collection bags, the supporting frame is rotatably connected with the mounting plate, an air blowing plate is slidably connected into the shell, and the sliding direction of the air blowing plate is in the vertical direction. The shell is provided with a lead screw assembly used for driving the air blowing plate to slide and a rotating assembly used for driving the dust removal cloth bag to rotate. The dust removal device has the effects that the dust removal effect of the cloth belt can be improved, and continuous and efficient work of the cloth bag is kept.

Description

Technical Field

[0001] This application relates to the technical field of dust removal equipment, and in particular to a bag filter. Background Art

[0002] At present, a bag filter is a dry dust filtering device, which is suitable for collecting fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by the filtering action of the fiber fabric. When the dust-containing gas enters the bag filter, the dust with large particles and high specific gravity settles down due to the action of gravity and then falls into the ash hopper. When the gas containing finer dust passes through the filter bag, the dust is retained, and the gas is purified.

[0003] The common bag filters on the market mainly use physical filtration methods for air purification, relying on woven or felted filter cloth as the filtering material. However, when traditional bag filters handle dust, the filter bags are prone to clogging, damage, and poor dust cleaning effect, which affects the dust removal efficiency and the service life of the filter bags. Summary of the Invention

[0004] In order to improve the dust cleaning effect of the cloth belt and maintain the continuous and efficient operation of the filter bag, this application provides a bag filter.

[0005] The bag filter provided by this application adopts the following technical solutions: A bag filter includes a bracket and a housing. The housing is fixedly connected to the bracket. A dust hopper is fixed at the bottom of the housing, an air inlet pipe is fixed on the dust hopper, an air outlet pipe is fixed on the housing, and it further includes a plurality of dust filter bags. An installation plate is horizontally fixed inside the housing. The plurality of dust filter bags are arranged vertically and are evenly distributed along the area of the installation plate. An electromagnetic pulse valve and a blowpipe for inflating the dust filter bags are fixed on the housing. A support frame is detachably connected inside the dust filter bag, and the support frame is rotatably connected to the installation plate. The rotation axis direction of the support frame is along the vertical direction. A blower is fixed on the housing. A blowing plate is slidably connected inside the housing, and the sliding direction of the blowing plate reciprocates along the vertical direction. The blower is connected to the inside of the blowing plate through a hose. A lead screw assembly for driving the sliding of the blowing plate is arranged inside the housing.

[0006] By adopting the above technical solution, the dusty gas first enters the interior of the housing from the intake pipe on the housing, and then passes through the filtration of multiple dust removal cloth bags. Dust impurities and the like will adhere to the surface of the dust removal cloth bags, while the gas after filtration is discharged through the outlet pipe. Some of the dust impurities on the dust removal cloth bags will directly fall into the ash hopper under the action of their own gravity, while most of the attached dust requires the electromagnetic pulse valve to blow air into the dust removal cloth bags through the blowpipe. The rapid blowing of air can make a large amount of dust and garbage on the surface of the dust removal cloth bags fall off. However, the dust is relatively light in weight and will continue to adhere to the dust removal cloth bags during the floating process. Moreover, since the dust removal cloth bags are vertically arranged and have a relatively long length, the dust cleaning effect of the dust removal cloth bags closer to the bottom is less thorough, which is likely to cause dust accumulation. At this time, a blowing plate is slidably connected to the position close to the inner wall inside the housing. When the blowing plate slides up and down, it performs secondary dust cleaning on the dust removal cloth bags. In this way, the dust cleaning effect of the dust removal cloth bags can be improved.

[0007] Optionally, the lead screw assembly includes a threaded rod, a first servo motor, and a guide rod. The first servo motor is fixed to the housing, the motor shaft of the first servo motor is fixed to the threaded rod, the rotation axis direction of the threaded rod driven by the first servo motor is along the vertical direction, and the guide rod is fixed to the housing.

[0008] Optionally, a surrounding frame is provided on the blowing plate. The surrounding frame rotates relative to the blowing plate. One end of the surrounding frame is threadedly connected to the threaded rod, and the other end is slidably connected to the guide rod. A driving assembly for driving the rotation of the blowing plate is provided on the surrounding frame.

[0009] By adopting the above technical solution, under the driving action of the driving assembly on the surrounding frame, the blowing plate itself can rotate in the front-back direction towards the dust removal cloth bags. In this way, when the blowing plate blows air towards the dust removal cloth bags, by changing the angle, a more comprehensive and thorough cleaning of the dust removal cloth bags can be achieved.

[0010] Optionally, the driving assembly includes a rotating shaft, a driven gear, and a driving gear. The rotating shaft is horizontally arranged and fixed to the surrounding frame. The driven gear is fixed to the blowing plate and rotates relative to the rotating shaft. The driving gear rotates relative to the surrounding frame, and the rotation axis direction of the driving gear is along the direction parallel to the rotating shaft. The driven gear itself is an incomplete tooth type. A rack is slidably connected to the surrounding frame, and the sliding direction of the rack is along the vertical direction. The driving gear meshes with the rack, and the driven gear meshes with the rack.

[0011] By adopting the above technical solution, the driven gear is an incomplete tooth, that is, when meshing with the rack, the rotation angle of the blowing plate can be controlled, so that the rotation angle of the blowing plate will not be too large, thus affecting the setting of the dust removal cloth bags.

[0012] Optionally, a rotating rod is rotatably connected to the mounting plate. The threaded rod passes through the mounting plate and is fixed with a first reversing gear. A second reversing gear is fixed on the rotating rod. The first reversing gear and the second reversing gear are meshed. A rotating assembly for driving the dust removal bag and the support frame to rotate is arranged on the mounting plate.

[0013] By adopting the above technical solution, when the threaded rod drives the blowing plate to move in the vertical direction, it can simultaneously drive the driving assembly above the mounting plate to drive the dust removal bag and the support frame to rotate, so that the cleaning effect of the blowing plate on the dust removal bag can be more comprehensive and thorough.

[0014] Optionally, the rotating assembly includes a worm gear and a worm. A third reversing gear is fixed on the worm. The third reversing gear is meshed with the second reversing gear. The worm rotates relative to the mounting plate. The rotation axis direction of the worm is along the horizontal direction. The worm gear is fixed to the support frame. The worm and the worm gear are meshed.

[0015] By adopting the above technical solution, the worm rotates by meshing with the second reversing gear and the third reversing gear. When the worm rotates, it meshes with the worm gear, and thus can drive the support frame to rotate.

[0016] Optionally, a conveying device is fixed at the ash hopper outlet. A spiral fan blade is rotatably connected in the conveying device. The rotation axis direction of the spiral fan blade is along the horizontal direction.

[0017] By adopting the above technical solution, the outlet device of the ash hopper is provided with a conveying device, which can make the fallen dust and impurities be conveyed to the outlet evenly and then be transported away. It can reduce the situation of accumulation and blockage at the ash hopper outlet and is also beneficial to continuous transportation.

[0018] Optionally, a sliding rod is slidably connected to the inner wall of the ash hopper. The sliding rod is arranged parallel to the ash hopper port and abuts against the inner wall of the ash hopper. The sliding rod is a spring telescopic rod. When the sliding rod moves downward, its own length gradually becomes shorter.

[0019] By adopting the above technical solution, the inner wall of the ash hopper is prone to adhesion of dust and impurities during the long-term filtering process. At this time, driving the sliding rod to slide along the inner wall of the ash hopper is beneficial to scraping off the dust and impurities adhered to the inner wall of the ash hopper.

[0020] Optionally, a baffle is slidably connected to the ash hopper outlet. The sliding direction of the baffle is perpendicular to the direction of dust falling in the ash hopper.

[0021] By adopting the above technical solution, the baffle can block the outlet of the ash hopper when the dust collector is not working, playing a role in protecting the internal structure of the housing.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The lead screw assembly drives the blowing plate to reciprocate up and down, and the blowing plate can rotate relative to the surrounding frame, which can perform secondary cleaning on the remaining dust and impurities on the dust removal bag, facilitating a better dust cleaning effect of the dust removal bag. 2. The rotating assembly on the mounting plate can drive the dust removal bag and the support frame to rotate, that is, when the blowing plate blows the dust removal bag, the dust removal bag can be cleaned more comprehensively and thoroughly. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the embodiment of the present application; Figure 2 is the schematic diagram showing the internal structure of the housing; Figure 3 is Figure 2 the partial enlarged schematic diagram of part A in Figure 4 is the front structural schematic diagram showing the blowing plate; Figure 5 is Figure 2 the partial enlarged schematic diagram of part B in Figure 6 is the sectional structural schematic diagram showing the ash hopper.

[0024] In the figure, 1, support; 2, housing; 21, ash hopper; 211, intake pipe; 212, conveying device; 2121, spiral fan blade; 213, sliding rod; 2131, first cylinder; 214, baffle; 2141, second cylinder; 22, outlet pipe; 23, mounting plate; 231, rotating rod; 2311, second reversing gear; 24, electromagnetic pulse valve; 25, blowing pipe; 26, blower; 3, dust removal bag; 31, support frame; 4, blowing plate; 41, air jet port; 42, surrounding frame; 5, lead screw assembly; 51, threaded rod; 511, first reversing gear; 52, first servo motor; 53, guide rod; 6, drive assembly; 61, rotating shaft; 62, driven gear; 63, driving gear; 631, second servo motor; 64, rack; 7, rotating assembly; 71, worm gear; 72, worm; 721, third reversing gear. Detailed Embodiment

[0025] The following will Figures 1-6 further elaborate on the present application in conjunction with the attached

[0026] The embodiment of the present application discloses a bag type dust collector.

[0027] Refer to Figure 1, a bag filter includes a support 1 and a housing 2. The support 1 is vertically fixed on the ground, and the housing 2 is fixedly connected to the support 1. A dust hopper 21 is fixed at the bottom of the housing 2, and an intake pipe 211 is horizontally fixed on the dust hopper 21. An exhaust pipe 22 is fixed at a position near the top of the housing 2, and an electromagnetic pulse valve 24 is fixed on the housing 2.

[0028] Reference Figure 2 , a plurality of dust removal bags 3 are arranged in the housing 2. A mounting plate 23 is horizontally fixed in the housing 2. The plurality of dust removal bags 3 are arranged vertically and are evenly distributed along the area of the mounting plate 23. A support frame 31 is detachably connected inside the dust removal bag 3. The support frame 31 can support the dust removal bag 3 to be more stable when filtering gas and can also increase the filtering area; a blower 26 is fixed on the housing 2. A blowing plate 4 is slidably connected inside the housing 2. The blowing plate 4 is arranged along the inner wall of the housing 2 in a self - conforming manner, and the sliding direction of the blowing plate 4 reciprocates in the vertical direction. The blower 26 is connected to the inside of the blowing plate 4 through a hose.

[0029] Reference Figure 2 , Figure 3 and Figure 4 , a surrounding frame 42 is arranged on the blowing plate 4. The blowing plate 4 rotates relative to the surrounding frame 42. A lead screw assembly 5 is arranged in the housing 2. The lead screw assembly 5 includes a lead screw rod 51, a first servo motor 52 and a guide rod 53. The first servo motor 52 is fixedly connected to the housing 2. The motor shaft of the first servo motor 52 is fixed to the lead screw rod 51. The rotation axis direction of the first servo motor 52 driving the lead screw rod 51 is in the vertical direction. The surrounding frame 42 is threadedly connected to the lead screw rod 51 and is slidably connected to the guide rod 53.

[0030] A driving assembly 6 is arranged on the surrounding frame 42. The driving assembly 6 includes a rotating shaft 61, a driven gear 62, a driving gear 63, a second servo motor 631 and a rack 64. The rotating shaft 61 is horizontally arranged and fixed at the horizontal mid - line position of the surrounding frame 42. The driven gear 62 is fixedly connected to the blowing plate 4. The driven gear 62 rotates with the rotating shaft 61. The driven gear 62 itself is in an incomplete tooth shape. A rack 64 is vertically slidably connected to the surrounding frame 42. The sliding direction of the rack 64 is in the vertical direction. The second servo motor 631 is fixedly connected to the surrounding frame 42. The motor shaft of the second servo motor 631 is fixed to the driving gear 63. The driving gear 63 meshes with the rack 64, and the driven gear 62 meshes with the rack 64; the second servo motor 631 can drive the driving gear 63 to rotate. When the driving gear 63 rotates, it meshes with the rack 64, and the rack 64 slides in the vertical direction. When the rack 64 slides, it meshes with the driven gear 62, and the driven gear 62 rotates relative to the rotating shaft 61, thereby driving the blowing plate 4 to flip back and forth relative to the dust removal bag 3. Also, because the driven gear 62 itself is an incomplete tooth, the rotation angle of the blowing plate 4 can be limited, reducing its influence on the setting of the dust removal bag 3 itself.

[0031] Inside the housing 2, a blowing pipe 25 is horizontally fixed. The blowing pipe 25 is connected and fixed to the electromagnetic pulse valve 24. A plurality of nozzles are provided on the blowing pipe 25, and they are all arranged directly above the dust removal bag 3. Here, the electromagnetic pulse valve 24 and the blowing pipe 25 are both common devices, so no further introduction will be given. After the dust removal bag 3 has been filtering for a period of time, a part of the dust adhering to the outside of the dust removal bag 3 itself will directly fall into the ash hopper 21 under the action of its own gravity. Then, the blowing pipe 25 blows the dust removal bag 3, and a large amount of the remaining dust will fall into the ash hopper 21. Also, because the dust itself is relatively light in weight, it will continue to adhere to the surface of the dust removal bag 3 when floating. At this time, the blower 26 can be used to blow air to the blowing plate 4. A plurality of air jets 41 are provided on the side of the blowing plate 4 facing the dust removal bag 3. During the up and down movement of the blowing plate 4, combined with the rotation of the blowing plate 4 relative to the surrounding frame 42, secondary dust cleaning of the dust removal surface can be achieved, facilitating a more comprehensive and thorough dust cleaning effect.

[0032] Reference Figure 2 and Figure 5 On the mounting plate 23, a rotating rod 231 is horizontally arranged. The rotating rod 231 is rotatably connected to the mounting plate 23. A threaded rod 51 passes through the mounting plate 23 and is fixed with a first reversing gear 511. A second reversing gear 2311 is fixed on the rotating rod 231. Both the first reversing gear 511 and the second reversing gear 2311 are conical gears, and the first reversing gear 511 meshes with the second reversing gear 2311.

[0033] A rotating assembly 7 is arranged on the mounting plate 23. The rotating assembly 7 includes a worm gear 71 and a worm 72. A plurality of worm gears 71 and worms 72 are provided, and they respectively correspond to the dust removal bags 3. A third reversing gear 721 is fixed on the worm 72. The third reversing gear 721 meshes with the second reversing gear 2311. The worm 72 rotates relative to the mounting plate 23. The rotation axis direction of the worm 72 is horizontal and perpendicular to the direction of the rotating rod 231. The worm gear 71 is fixed to the support frame 31. The worm 72 meshes with the worm gear 71. When the threaded rod 51 rotates, it can drive the rotating rod 231 to rotate. The rotation of the rotating rod 231 can drive the worm 72 to rotate. The worm 72 meshes with the worm gear 71, so as to drive the dust removal bag 3 and the support frame 31 to rotate. That is, when the blowing plate 4 slides up and down to blow the dust removal bag 3, the dust removal bag 3 itself will also rotate, thus achieving a more comprehensive and thorough dust cleaning effect for the dust removal bag 3.

[0034] Reference Figure 1 and Figure 6 At the outlet of the ash hopper 21, a conveying device 212 is horizontally fixed. A spiral fan blade 2121 is rotatably connected inside the conveying device 212. The rotation axis direction of the spiral fan blade 2121 is horizontal, which can reduce the accumulation and blockage of dust and impurities at the outlet of the ash hopper 21 and also facilitate continuous and regular transportation.

[0035] A sliding rod 213 is slidably connected to the inner wall of the ash hopper 21. The sliding rod 213 is horizontally arranged parallel to the port of the ash hopper 21. The sliding rod 213 abuts against the inner wall of the ash hopper 21. The sliding rod 213 itself is a spring telescopic rod. A first cylinder 2131 is fixed to the inner wall of the ash hopper 21. The sliding end of the first cylinder 2131 is fixed to the sliding rod 213. When the sliding rod 213 moves horizontally downward, the length of the sliding rod 213 itself gradually becomes shorter, which can achieve the effect of removing the dust adhered to the inner wall of the ash hopper 21.

[0036] A baffle 214 is slidably connected to the position where the bottom outlet of the ash hopper 21 is connected to the conveying device 212. A second cylinder 2141 is fixed to the side wall of the ash hopper 21. The movable end of the second cylinder 2141 is fixed to the baffle 214. The second cylinder 2141 drives the baffle 214 to slide perpendicular to the falling direction of the dust, which is convenient for protecting the structure inside the housing 2 when the dust collector is not in use.

[0037] The implementation principle of a bag - type dust collector in an embodiment of this application is as follows: The dust - laden gas entering the inside of the housing 2 from the intake pipe 211 is filtered by the dust - removal cloth bag 3. The dust and impurities in the gas will adhere to the surface of the dust - removal cloth bag 3. The filtered gas is discharged from the outlet pipe 22. In this process, a part of the dust first falls into the ash hopper 21 under the action of its own gravity. In addition, the dust adhered to the dust - removal cloth bag 3 is blown into the dust - removal cloth bag 3 through the electromagnetic pulse valve 24 to achieve the effect of preliminary dust cleaning. And the dust will continue to adhere to the dust - removal cloth bag 3 during the floating process. At this time, the blower 26 is started, and the dust - removal cloth bag 3 is blown through the blowing plate 4. At the same time, at this time, the blowing plate 4 can not only rotate relative to the surrounding frame 42, but also the dust - removal cloth bag 3 and the support frame 31 can rotate relative to the mounting plate 23, which is convenient for achieving a more comprehensive and thorough dust - cleaning effect.

[0038] The embodiments of this specific implementation manner are all preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A bag-type dust collector, comprising a bracket (1) and a shell (2), wherein the shell (2) is fixedly connected to the bracket (1), a ash hopper (21) is fixed at the bottom of the shell (2), an air inlet pipe (211) is fixed on the ash hopper (21), and an air outlet pipe (22) is fixed on the shell (2), characterized in that: The invention also comprises a plurality of dust removal bags (3), a mounting plate (23) is fixed horizontally in the shell (2), the plurality of dust removal bags (3) are arranged vertically and are evenly distributed along the mounting plate (23), an electromagnetic pulse valve (24) and a blowing pipe (25) are fixed on the shell (2) for blowing air into the dust removal bags (3), a support frame (31) is detachably connected in the dust removal bags (3), the support frame (31) is rotatably connected to the mounting plate (23), the rotation axis direction of the support frame (31) is in the vertical direction, a blower (26) is fixed on the shell (2), a blowing plate (4) is slidably connected in the shell (2), the sliding direction of the blowing plate (4) reciprocates in the vertical direction, the blower (26) is connected to the inside of the blowing plate (4) through a hose, and a screw assembly (5) for driving the blowing plate (4) to slide is arranged in the shell (2).

2. A bag-type dust collector according to claim 1, characterized in that: The lead screw assembly (5) comprises a threaded rod (51), a first servo motor (52) and a guide rod (53); the first servo motor (52) is fixed to the housing (2); the motor shaft of the first servo motor (52) is fixed to the threaded rod (51); the first servo motor (52) drives the threaded rod (51) to rotate in a vertical direction; and the guide rod (53) is fixed to the housing (2).

3. A bag-type dust collector according to claim 2, characterized in that: The blowing plate (4) is provided with a frame (42), the frame (42) rotates relative to the blowing plate (4), the rotation axis direction of the blowing plate (4) is along the horizontal direction, one end of the frame (42) is threadedly connected to the threaded rod (51), and the other end is slidably connected to the guide rod (53), and the frame (42) is provided with a driving assembly (6) for driving the blowing plate (4) to rotate.

4. A bag-type dust collector according to claim 3, characterized in that: The driving assembly (6) comprises a rotating shaft (61), a driven tooth (62) and a driving tooth (63); the rotating shaft (61) is arranged horizontally and fixed to the surrounding frame (42); the driven tooth (62) is fixed to the blowing plate (4), and the driven tooth (62) rotates with the rotating shaft (61); the driving tooth (63) rotates relative to the surrounding frame (42); the direction of the rotation axis of the driving tooth (63) is parallel to the direction of the rotating shaft (61); the driven tooth (62) itself is an incomplete tooth type; a rack (64) is slidably connected to the surrounding frame (42); the sliding direction of the rack (64) is in the vertical direction; the driving tooth (63) meshes with the rack (64); and the driven tooth (62) meshes with the rack (64).

5. A bag-type dust collector according to claim 2, characterized in that: The mounting plate (23) is rotatably connected to a rotating rod (231), a threaded rod (51) passes through the mounting plate (23) and is fixed with a first reversing tooth (511), a second reversing tooth (2311) is fixed to the rotating rod (231), the first reversing tooth (511) and the second reversing tooth (2311) are meshed, and a rotating assembly (7) for driving the dust bag (3) and the supporting frame (31) to rotate is provided on the mounting plate (23).

6. A bag-type dust collector according to claim 5, characterized in that: The rotating assembly (7) comprises a worm wheel (71) and a worm (72); a third reversing tooth (721) is fixed on the worm (72); the third reversing tooth (721) is meshed with the second reversing tooth (2311); the worm (72) rotates relative to the mounting plate (23); the rotation axis of the worm (72) is in the horizontal direction; the worm wheel (71) is fixed to the supporting frame (31); and the worm (72) and the worm wheel (71) are meshed.

7. A bag-type dust collector according to claim 1, characterized in that: A conveying device (212) is fixed at the outlet of the ash hopper (21), and a spiral blade (2121) is rotatably connected inside the conveying device (212), and the rotation axis direction of the spiral blade (2121) is along the horizontal direction.

8. A bag-type dust collector according to claim 7, characterized in that: The inner wall of the ash hopper (21) is slidably connected with a sliding rod (213). The sliding rod (213) is arranged parallel to the end of the ash hopper (21) and abuts against the inner wall of the ash hopper (21). The sliding rod (213) is a spring telescopic rod. When the sliding rod (213) moves downward, the length of the sliding rod (213) gradually shortens.

9. A bag-type dust collector according to claim 8, characterized in that: A baffle (214) is slidably connected to the outlet of the ash hopper (21), and the sliding direction of the baffle (214) is perpendicular to the direction in which dust in the ash hopper (21) falls.

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