Dust explosion-proof bag-type dust collector
By introducing cleaning mechanisms and dust reduction boards into the dust explosion-proof bag dust collector, and automatically cleaning using air potential energy, the high cost problems brought about by electrical equipment in the prior art are solved, and filtration efficiency and equipment safety are improved.
Patent Information
- Application Number
- CN202422388400.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing dust explosion-proof bag dust collectors require electrical equipment during the cleaning process, resulting in high production costs and high energy consumption, which is not conducive to promotion.
The cleaning mechanism is adopted to use the potential energy generated by air flow to automatically intermittent cleaning of explosion-proof cloth bags, reduce the use of electrical equipment, and perform preliminary filtration by setting up dust reduction plates to reduce subsequent filtration burden, and collect dust through funnel.
Automatic cleaning of explosion-proof cloth bags is realized, which reduces equipment costs and power consumption, improves filtration efficiency, and reduces the risk of bag blockage.
Smart Images
Figure CN223112673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bag dust collectors, and particularly relates to a dust explosion-proof bag dust collector. Background Art
[0002] A bag dust removal device is also called a bag dust collector, and its working mechanism is that the dust-containing flue gas passes through the filter material, and the dust particles are filtered out. The filter material captures coarse dust particles mainly by inertial collision, and captures fine dust particles mainly by diffusion and screening. According to the working principle of the bag dust collector, it is commonly used in the industrial field. During the working process of the bag dust collector, the filtered dust is a flammable substance. Also, because the dust is in a closed space inside the device, when static electricity is generated by the friction between the dust and the device, the generated static electricity will generate electric sparks, which may cause the device to explode. To avoid explosions during the dust working process, generally, anti-static filter materials are used to ensure the explosion-proof effect of the device. Therefore, a device using anti-static filter materials is also called an explosion-proof bag dust collector.
[0003] The prior art such as the publication number CN221107409U provides a dust explosion-proof bag dust collector, which relates to the technical field of bag dust collectors. The utility model includes a filter cylinder, the bottom surface of the filter cylinder is fixedly connected with a dust discharge pipe, the upper part of the left side of the filter cylinder is fixedly connected with an air inlet pipe, the upper parts of the front and rear sides of the inner wall of the filter cylinder are jointly fixedly connected with a baffle plate, the top surface of the baffle plate is fixedly connected with the upper side of the inner wall of the filter cylinder, the right side of the baffle plate and the right side of the inner wall of the filter cylinder are jointly fixedly connected with a fixing plate, the front and rear surfaces of the fixing plate are respectively fixedly connected with the front and rear sides of the inner wall of the filter cylinder, the bottom surface of the fixing plate is provided with a plurality of filter mesh cylinders, and anti-static dust collector filter bags are arranged on the lower sides of the surfaces of the plurality of filter mesh cylinders. The upper side of the right side of the filter cylinder is fixedly connected with an air outlet pipe. The utility model can ensure that the impurities filtered by the device do not adhere to the inner wall of the device, ensure the service life of the inner wall of the device, and avoid the problem of corrosion of the inner wall of the device.
[0004] In this solution, electrical equipment such as air pumps and output motors are used. Although the cleaning of the inside of the dust collector and the filter bags is realized, these will greatly increase the production cost of the device and consume electric power as energy, and the overall cost is relatively high and not conducive to popularization. In view of this, we propose a dust explosion-proof bag dust collector. Content of the Utility Model
[0005] The purpose of the utility model is to provide a dust explosion-proof bag dust collector, which solves the problem of self-cleaning of the filter bag.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A dust explosion-proof bag filter, comprising a dust removal bin, an air inlet is connected to the middle position on one side of the dust removal bin, an exhaust port is connected to the side of the dust removal bin away from the air inlet, a plurality of installation frames are connected to the inner wall of the dust removal bin near the exhaust port, explosion-proof bags are connected to the inner walls of the installation frames, and a cleaning mechanism is arranged above the dust removal bin;
[0008] The cleaning mechanism includes a plurality of cleaning pipes, the cleaning pipes are arranged above the dust removal bin, and each cleaning pipe corresponds to the position of each group of installation frames one by one. Each cleaning pipe is communicated with the explosion-proof bag in each group of installation frames through a connecting pipe.
[0009] Preferably, the cleaning mechanism further includes an air cylinder, the air cylinder is connected to the outer wall of the dust removal bin, a piston is connected to the inner wall of the air cylinder, a spring for resetting the piston is connected to the position between the inner wall of the air cylinder and the piston, and the air cylinder is communicated with the cleaning pipe through an air pipe.
[0010] Preferably, the cleaning mechanism further includes a rotating rod, the rotating rod is rotatably connected to the position on the inner wall of the dust removal bin near the air inlet side, and the rotating rod penetrates through one side of the dust removal bin. A plurality of wind-catching plates are connected to the outer wall of the rotating rod corresponding to the air inlet position, and the plurality of wind-catching plates are annularly distributed on the outer wall of the rotating rod. One end of the rotating rod outside the dust removal bin is connected with a small gear, the outer wall of the small gear is meshed with a large gear, and the large gear is rotatably connected to the outer wall of the dust removal bin. Three pressing columns are connected to the surface of the large gear, and the three pressing columns are annularly arranged in an array. One side of the outer wall of the dust removal bin away from the small gear is hinged with a swing rod, and one end of the swing rod close to the large gear is hinged with a pressing rod for pressing down the piston.
[0011] Preferably, the bottom of the pressing rod is hinged with a slider, the top of the piston is connected with a slideway, and the slider is connected with the inner wall of the slideway.
[0012] Preferably, a one-way valve is connected to the inner wall of the piston for air to enter the air cylinder internally unidirectionally, and a check valve is arranged on the inner wall of the cleaning pipe.
[0013] Preferably, a funnel is connected to the bottom of the dust removal bin, and an ash collection tank is placed below the funnel.
[0014] Preferably, a dust settling plate is connected to the position on the inner wall of the dust removal bin between the explosion-proof bag and the air inlet, and a baffle is connected to the top of the exhaust port.
[0015] By means of the above technical solution, the present invention provides a dust explosion-proof bag filter. It has at least the following beneficial effects:
[0016] 1. The utility model can automatically and intermittently clean the explosion-proof cloth bag by setting a cleaning mechanism, and uses the potential energy generated during air flow as the power source. Compared with the method of using electrical equipment as the cleaning power source in the prior art, it reduces the cost of using electrical equipment and avoids the consumption of electric energy.
[0017] 2. By setting a dust reduction plate at the position of the air inlet, the incoming air is divided into two streams and passes through above and below the dust reduction plate. Larger-mass dust in the incoming air will contact the dust reduction plate under the action of inertia, lose inertia with the dust on the dust reduction plate, and fall under its own gravity to facilitate preliminary filtration and reduce the subsequent filtration burden of the explosion-proof cloth bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a view showing the large gear of the utility model;
[0021] Figure 3 It is a partial cross-sectional view of the utility model;
[0022] Figure 4 In the utility model Figure 3 is an enlarged view of part A.
[0023] In the figure: 1, dust removal bin; 11, dust reduction plate; 12, installation frame; 13, explosion-proof cloth bag; 3, air inlet; 4, funnel; 5, ash collection tank; 6, exhaust port; 7, baffle; 8, cleaning mechanism; 81, cleaning pipe; 82, connecting pipe; 83, rotating rod; 84, wind-catching plate; 85, small gear; 86, large gear; 87, swing rod; 781, pressing rod; 782, slideway; 783, slider; 88, pressing column; 89, air cylinder; 891, piston; 892, air pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.
[0025] A dust explosion-proof cloth bag dust collector, as Figure 1 - Figure 4As shown in the figure, it includes a dust removal bin 1. An air inlet 3 is connected to the middle position on one side of the dust removal bin 1. An exhaust port 6 is connected to the side of the dust removal bin 1 away from the air inlet 3. Multiple mounting frames 12 are connected to the inner wall of the dust removal bin 1 near the exhaust port 6. An explosion-proof cloth bag 13 is connected to the inner wall of the mounting frame 12. A cleaning mechanism 8 is arranged above the dust removal bin 1. The cleaning mechanism 8 includes multiple cleaning pipes 81. The cleaning pipes 81 are arranged above the dust removal bin 1, and each cleaning pipe 81 corresponds to each mounting frame 12 in position. Each cleaning pipe 81 is communicated with the explosion-proof cloth bag 13 in each mounting frame 12 through a connecting pipe 82. The cleaning mechanism 8 further includes an air cylinder 89. The air cylinder 89 is connected to the outer wall of the dust removal bin 1. A piston 891 is connected to the inner wall of the air cylinder 89. A spring for resetting the piston 891 is connected between the inner wall of the air cylinder 89 and the piston 891. The air cylinder 89 is communicated with the cleaning pipe 81 through an air pipe 892. The cleaning mechanism 8 further includes a rotating rod 83. The rotating rod 83 is rotatably connected to the position on one side of the inner wall of the dust removal bin 1 near the air inlet 3, and the rotating rod 83 penetrates through one side of the dust removal bin 1. Multiple wind-catching plates 84 are connected to the outer wall of the rotating rod 83 corresponding to the position of the air inlet 3, and the multiple wind-catching plates 84 are annularly distributed on the outer wall of the rotating rod 83. One end of the rotating rod 83 outside the dust removal bin 1 is connected with a small gear 85. The outer wall of the small gear 85 is meshed with a large gear 86, and the large gear 86 is rotatably connected to the outer wall of the dust removal bin 1. Three pressing columns 88 are connected to the surface of the large gear 86, and the three pressing columns 88 are annularly arranged in an array. A swing rod 87 is hinged to the position on the outer wall of the dust removal bin 1 away from the small gear 85. One end of the swing rod 87 close to the large gear 86 is hinged to a pressing rod 781 for pressing down the piston 891. The bottom of the pressing rod 781 is hinged to a slider 783. A slideway 782 is connected to the top of the piston 891, and the slider 783 and the inner wall of the slideway 782 are connected to the wind-catching plate 84. A one-way valve is connected to the inner wall of the piston 891 for allowing air to enter the air cylinder 89 unidirectionally. A check valve is arranged on the inner wall of the cleaning pipe 81, so that each time the piston 891 is reset due to the tension of the spring, new air is inhaled from the one-way valve.
[0026] In this embodiment, by setting up the cleaning mechanism 8, when the gas inlet 3 containing dust is connected to the inside of the dust removal bin 1, it will first come into contact with the air guiding plate 84, and the potential energy generated by the air flow will push the air guiding plate 84 to drive the rotating rod 83 to rotate, thereby driving the small gear 85 connected to the rotating rod 83 to rotate. The large gear 86 in mesh drives the pressure column 88 to rotate. Each time the pressure column 88 contacts the swing rod 87 during the rotation process, it will press down the swing rod 87, causing the pressure rod 781 connected to the swing rod 87 to sink and press down the piston 891, so as to squeeze the air in the air cylinder 89. The air is discharged into the inner side of the explosion-proof cloth bag 13 through the air pipe 892 and the cleaning pipe 81 and finally through the connecting pipe 82. By injecting air into the explosion-proof cloth bag 13, it is convenient to clean the dust attached to the surface during filtration from the inside of the explosion-proof cloth bag 13, avoiding the problem of blockage of the explosion-proof cloth bag 13 resulting in a decline in the filtration effect, so as to achieve the purpose of cleaning the explosion-proof cloth bag 13.
[0027] As Figure 1 shown, a funnel 4 is connected to the bottom of the dust removal bin 1, and an ash collecting tank 5 is placed below the funnel 4.
[0028] In this embodiment, by setting up the funnel 4, the dust intercepted by the explosion-proof cloth bag 13 on the inner wall of the dust removal bin 1 will be guided to fall into the ash collecting tank 5 for collection.
[0029] As Figure 1 、 Figure 2 shown, a dust settling plate 11 is connected to the position between the explosion-proof cloth bag 13 and the air inlet 3 on the inner wall of the dust removal bin 1, and a baffle 7 is connected to the top of the exhaust port 6.
[0030] In this embodiment, by setting the dust settling plate 11 at the position of the air inlet 3, the incoming air will be divided into two streams and pass through above and below the dust settling plate 11. Larger-mass dust in the incoming air will contact the dust settling plate 11 under the action of inertia, and the dust will lose inertia on the dust settling plate 11 and fall under its own gravity, so as to facilitate preliminary filtration and reduce the subsequent filtration burden of the explosion-proof cloth bag 13.
[0031] When a dust explosion-proof bag filter of the present utility model is in use, when the gas inlet 3 containing dust is connected to the inside of the dust removal bin 1, it will first contact the air guiding plate 84, and the potential energy generated by the air flow will push the air guiding plate 84 to drive the rotating rod 83 to rotate, thereby driving the small gear 85 connected to the rotating rod 83 to rotate. The large gear 86 drives the pressing column 88 to rotate through meshing. Each time the pressing column 88 contacts the swing rod 87 during rotation, it will press down the swing rod 87, causing the pressing rod 781 connected to the swing rod 87 to sink and press down the piston 891, so as to squeeze the air in the air cylinder 89. The air passes through the air pipe 892 and the cleaning pipe 81 and is finally sprayed into the inner side of the explosion-proof bag 13 through the connecting pipe 82. By injecting air into the explosion-proof bag 13, it is convenient to clean the dust attached to the surface during filtration from the inside of the explosion-proof bag 13, avoiding the problem of the explosion-proof bag 13 being blocked and the filtration effect decreasing, so as to achieve the purpose of cleaning the explosion-proof bag 13. And by arranging the dust settling plate 11 at the position of the air inlet 3, the incoming air will be divided into two streams and pass through above and below the dust settling plate 11. The dust with a larger mass in the incoming air will contact the dust settling plate 11 under the action of inertia, and the dust will lose inertia on the dust settling plate 11 and fall under the action of its own gravity, so as to facilitate the preliminary filtration and reduce the subsequent filtration burden of the explosion-proof bag 13. By arranging the funnel 4, the dust intercepted by the explosion-proof bag 13 on the inner wall of the dust removal bin 1 will be guided and fall into the ash collection tank 5 for collection.
[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A dust explosion-proof bag filter, comprising a dust removal bin (1), characterized in that: An air inlet (3) is connected to the middle position on one side of the dust removal bin (1). An exhaust port (6) is connected to the side of the dust removal bin (1) far from the air inlet (3). A plurality of mounting frames (12) are connected to the inner wall of the dust removal bin (1) near the exhaust port (6). An explosion-proof cloth bag (13) is connected to the inner wall of the mounting frame (12). A cleaning mechanism (8) is arranged above the dust removal bin (1). The cleaning mechanism (8) includes a plurality of cleaning pipes (81). The cleaning pipes (81) are arranged above the dust removal bin (1), and each cleaning pipe (81) corresponds to each group of mounting frames (12) in position. Each cleaning pipe (81) is communicated with the explosion-proof cloth bag (13) in each group of mounting frames (12) through a connecting pipe (82).
2. The fabric filter dust collector for preventing explosion of dust according to claim 1, wherein: The cleaning mechanism (8) further includes an air cylinder (89). The air cylinder (89) is connected to the outer wall of the dust removal bin (1). A piston (891) is connected to the inner wall of the air cylinder (89). A spring for resetting the piston (891) is connected to the position between the inner wall of the air cylinder (89) and the piston (891). The air cylinder (89) is communicated with the cleaning pipe (81) through an air pipe (892).
3. The fabric filter dust collector for preventing explosion of dust according to claim 2, characterized in that: The cleaning mechanism (8) further includes a rotating rod (83). The rotating rod (83) is rotatably connected to the position on the inner wall of the dust removal bin (1) near the air inlet (3), and the rotating rod (83) penetrates through one side of the dust removal bin (1). A plurality of wind-catching plates (84) are connected to the outer wall of the rotating rod (83) corresponding to the air inlet (3), and the plurality of wind-catching plates (84) are annularly distributed on the outer wall of the rotating rod (83). One end of the rotating rod (83) outside the dust removal bin (1) is connected with a small gear (85). The outer wall of the small gear (85) is meshed with a large gear (86), and the large gear (86) is rotatably connected to the outer wall of the dust removal bin (1). Three pressing columns (88) are connected to the surface of the large gear (86), and the three pressing columns (88) are annularly arrayed. A swing rod (87) is hinged to the position on the outer wall of the dust removal bin (1) far from the small gear (85). One end of the swing rod (87) close to the large gear (86) is hinged with a pressing rod (781) for pressing down the piston (891).
4. The fabric filter dust collector for preventing explosion of dust according to claim 3, wherein: The bottom of the pressing rod (781) is hinged with a slider (783). The top of the piston (891) is connected with a slideway (782), and the slider (783) is connected with the inner wall of the slideway (782).
5. The fabric filter dust collector for preventing explosion of dust according to claim 4, characterized in that: A one-way valve is connected to the inner wall of the piston (891) for one-way air entry into the air cylinder (89) interior. A check valve is arranged on the inner wall of the cleaning pipe (81).
6. The fabric dust collector for preventing explosion of dust according to claim 1, wherein: A funnel (4) is connected to the bottom of the dust removal bin (1). An ash collection tank (5) is placed below the funnel (4).
7. A dust explosion-proof bag filter according to claim 1, characterized in that: A dust settling plate (11) is connected to the position on the inner wall of the dust removal bin (1) between the explosion-proof cloth bag (13) and the air inlet (3). A baffle (7) is connected to the top of the exhaust port (6).