Filter bag dust removal device
By setting up a vacuum cleaner in the dust removal box to absorb floating dust, the problem of dust adhesion in the prior art is solved, which extends the filtering time of the filter bag and reduces the damage to the filter bag.
Patent Information
- Application Number
- CN202420540726.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-20
AI Technical Summary
After the existing filter bag dust removal device is cleaned in the reverse pulse, the dust floating in the dust removal box is prone to stick to the surface of the filter bag again, resulting in a shortened filtration time and frequent damage to the filter bag.
A vacuum cleaner is provided in the dust removal box and between the gaps of the dust removal filter bags to suck away floating dust through the exhaust device to prevent it from sticking to the filter bag again.
The filtering time of the filter bag is extended and the backflush cleaning frequency of the filter bag is reduced, thereby avoiding early damage to the filter bag.
Smart Images
Figure CN222677485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal equipment, and more specifically, to a filter bag dust removal device. Background Art
[0002] The filter bag dust removal device is a dry dust removal device. It uses textile filter cloth or non-textile felt cloth to make filter bags. It uses the filtering effect of fiber materials to filter dust-containing gases, which can significantly reduce the dust concentration of the gas. When the dust-containing gas enters the filter bag dust removal device, the dust will be captured on the surface of the filter bag, allowing the clean gas to pass through the filter bag and be discharged.
[0003] However, there are still some shortcomings in its actual use. At present, the dust on the surface of the dust filter bag is saturated after a period of use, and it is necessary to use reverse pulse to blow back from the opening of the bag to shake off the ash hopper on the surface of the bag. At the same time, a small amount of dust will float inside the dust collector box and will adhere to the surface of the dust filter bag again. This small amount of dust will not directly affect the filtering effect of the dust filter bag. However, in subsequent filtration, since the dust filter bag has adhered to some floating dust, the dust surface of the dust filter bag is easy to be saturated with dust prematurely, which increases the frequency of cleaning the dust filter bag. It has no major impact on the dust filter bag in the short term, but frequent cleaning of the dust filter bag through reverse pulse is likely to cause damage to the dust filter bag, and the dust filter bag needs to be replaced. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a filter bag dust removal device, by arranging a dust suction mechanism inside the dust removal box and between the gaps concentrated in the dust filter bag. After the reverse dust removal equipment performs reverse dust removal on the dust filter bag, the dust floating in the dust removal box is sucked away by the dust suction mechanism to prevent the dust from adhering to the surface of the dust filter bag again, resulting in the need for frequent cleaning of the dust filter bag, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter bag dust removal device, comprising a dust box, an ash hopper at the bottom of the dust box, and a frame for installing the dust box, a flower plate is installed on the top of the dust box, a plurality of through-hole structures for installing dust filter bags are opened on the flower plate, the dust filter bags are installed on the flower plate through the through-holes through the support frame, a reverse dust removal device for blowing air from the inside of the dust filter bags is installed on the top of the dust box, and a dust suction mechanism for absorbing floating dust is also installed inside the dust box and between the gaps between the dust filter bags, the dust suction mechanism includes a collecting An ash box, and a plurality of inner cylinder structures installed on the top of the ash box, the inner cylinder is provided with a through hole structure connected to the outside, the bottom of the ash box is provided with a through hole structure for falling ash, an exhaust device is also provided inside the ash box, the exhaust device is connected to the bottom of the inner cylinder through a pipeline, the dust collection mechanism also includes an outer cylinder sleeved on the inner cylinder, the outer cylinder is rotatably arranged on the inner cylinder, the outer cylinder is provided with an air inlet hole corresponding to the position of the inner cylinder, a gear ring is arranged at the bottom of the outer cylinder, and a driving rack is also provided on the top of the ash box, the driving rack is meshed with the gear ring, and the driving rack is movably arranged on the top of the ash box.
[0006] In a preferred embodiment, the exhaust device is a vacuum cleaner or a fan, the fan or vacuum cleaner is connected to a plurality of inner cylinders through a pipeline, and the dust collecting box is a trapezoidal structure with a larger upper part and a smaller lower part.
[0007] In a preferred embodiment, convex keys are provided on the upper and lower surfaces at both ends of the driving rack, and a keyway in which the convex key can slide is provided on the top end surface of the ash collecting box. The length of the keyway is greater than the convex key. The driving rack is tightly attached to the top surface of the ash collecting box, and the convex key can slide in the keyway. When the driving rack moves, it drives the outer cylinder to rotate through the matching gear ring, and the air inlet hole of the outer cylinder is staggered with the through hole on the inner cylinder.
[0008] In a preferred embodiment, a sealing cover is provided on the top of the ash collecting box.
[0009] In a preferred embodiment, one end of the driving rack extends through the dust removal box to the outside, and a connecting rod structure is provided at the end of the driving rack, the connecting rod is used to connect one end of several driving racks, and a cylinder is installed on the outer side wall of the dust removal box, the output end of the cylinder is fixedly connected to the connecting rod, and the cylinder is extended and retracted to drive the driving rack to move.
[0010] In a preferred embodiment, the reverse dust removal device comprises a compressed air bag and a pulse pipe, a solenoid valve is arranged between the pulse pipe and the compressed air bag, and a plurality of nozzles corresponding to the positions of the dust filter bags are arranged at the bottom of the pulse pipe;
[0011] A through exhaust duct is arranged outside the dust removal box and above the flower plate to discharge the filtered clean air.
[0012] The technical effects and advantages of the utility model are as follows: a dust suction mechanism is arranged inside the dust removal box and between the gaps concentrated on the dust filter bags. After the reverse dust removal equipment performs reverse dust removal on the dust filter bags, the dust floating in the dust removal box is sucked away by the dust suction mechanism to prevent this part of the dust from adhering to the dust filter bags again. This can increase the filtration time of the dust filter bags, and there is no need to frequently backwash the dust filter bags. On the other hand, it also avoids the problem of easy damage to the dust filter bags due to frequent backwashing cleaning. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] Figure 2 It is a schematic diagram of the installation structure of the dust collection mechanism of the utility model.
[0015] Figure 3 It is a schematic diagram of the dust collection mechanism and assembly enlarged structure of the utility model.
[0016] Figure 4 It is a schematic diagram of the assembly of the driving rack of the utility model.
[0017] Figure 5 The utility model is a schematic diagram of the positions of the convex keys on the inner cylinder and the driving rack.
[0018] The accompanying drawings are marked as follows: 1. dust removal box; 2. cylinder; 201. outer cylinder; 202. ash collection box; 203. sealing cover; 204. driving rack; 205. air inlet; 206. cam; 207. gear ring; 208. inner cylinder; 209. keyway; 210. exhaust equipment; 3. frame; 4. ash hopper; 5. compressed air bag; 6. solenoid valve; 7. pulse pipe; 8. dust filter bag; 9. flower plate; 10. exhaust duct. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] As attached Figure 1 With attached Figure 5A filter bag dust removal device shown in the figure comprises a dust removal box 1, an ash hopper 4 at the bottom of the dust removal box 1, and a frame 3 for installing the dust removal box 1. A flower plate 9 is installed on the top of the dust removal box 1. A plurality of through-hole structures for installing dust filter bags 8 are opened on the flower plate 9. The dust filter bags 8 are installed on the flower plate 9 through the through-holes through the support frame. A reverse dust removal device for blowing air from the inside of the dust filter bags 8 is installed on the top of the dust removal box 1. At the same time, a dust suction mechanism for absorbing floating dust is also installed inside the dust removal box 1 and between the gaps of the dust filter bags 8.
[0021] The dust collection mechanism includes an ash box 202 and a plurality of inner cylinders 208 structures installed on the top of the ash box 202. The inner cylinder 208 is provided with a through-hole structure connected to the outside. The bottom of the ash box 202 is provided with a ash-falling opening structure. An exhaust device 210 is also provided inside the ash box 202. The exhaust device 210 is connected to the bottom of the inner cylinder 208 through a pipeline. In practice, the exhaust device 210 can be a vacuum cleaner or a fan. The fan or vacuum cleaner is connected to a plurality of inner cylinders 208 through a pipeline. The ash box 202 is a trapezoidal structure with a large upper part and a small lower part. When working, the reverse dust removal device blows air from the inside of the dust filter bag 8, causing the dust filter bag 8 to expand outward and shake, thereby cleaning the dust. Most of the dust adsorbed on the surface of the filter bag 8 will fall directly into the ash hopper 4 at the bottom of the dust collection box 1 and be discharged through the conveying auger in the ash hopper 4. However, a small amount of dust will float inside the dust collection box 1 and will adhere to the surface of the dust filter bag 8 again. This small amount of dust will not directly affect the filtering effect of the dust filter bag 8. However, during subsequent filtration, since the dust filter bag 8 has adhered to some floating dust, the dust surface of the dust filter bag 8 is easily saturated with dust prematurely, increasing the frequency of cleaning the dust filter bag 8. It has no significant impact on the dust filter bag 8 in the short term, but frequent reverse pulse cleaning of the dust filter bag 8 is likely to cause damage to the dust filter bag 8, and the dust filter bag 8 needs to be replaced.
[0022] Through the dust suction mechanism, when working, the reverse dust removal device blows back from the inside of the dust filter bag 8, and the floating dust floating in the dust box 1 can be sucked through the exhaust device 210. The exhaust device 210 is connected to the bottom of the inner cylinder 208 through a pipe. The exhaust device 210 generates suction when working, so that the dust floating in the dust box 1 is adsorbed to the inside of the ash box 202 through the through holes on the inner cylinder 208, and is discharged into the ash hopper 4 from the bottom of the ash box 202 again. Compared with the existing technology, the filter bag dust removal device can solve the problem of dust floating in the dust box 1 after reverse pulse cleaning of the filter bag, so as to avoid this part of the dust from adhering to the dust filter bag 8 again. In this way, the filtration time of the dust filter bag 8 can be increased, and there is no need to frequently backwash the dust filter bag 8. On the other hand, it also avoids the problem of frequent backwashing cleaning, which makes the dust filter bag 8 easy to be damaged.
[0023] The dust collection mechanism also includes an outer cylinder 201 sleeved on the inner cylinder 208, the outer cylinder 201 is rotatably arranged on the inner cylinder 208, an air inlet hole 205 corresponding to the position of the inner cylinder 208 is opened on the outer cylinder 201, a gear ring 207 is arranged at the bottom of the outer cylinder 201, and a driving rack 204 is also arranged on the top of the dust collection box 202. The driving rack 204 is meshed with the gear ring 207, and the driving rack 204 is movably arranged on the top of the dust collection box 202.
[0024] Convex keys 206 are provided on the upper and lower surfaces of both ends of the driving rack 204, and a key slot 209 is provided on the top end surface of the ash collecting box 202 in which the convex key 206 can slide. The length of the key slot 209 is greater than the convex key 206. The driving rack 204 is close to the top surface of the ash collecting box 202, and the convex key 206 can slide in the key slot 209. When this structure is working, when the driving rack 204 moves, the outer cylinder 201 can be driven to rotate through the matching gear ring 207, so that the air inlet 205 of the outer cylinder 201 is staggered with the through hole on the inner cylinder 208. In this state, when the dust removal box 1 is working normally, dust will not enter the inner cylinder 208.
[0025] A sealing cover 203 is provided on the top of the dust collecting box 202, and the sealing cover 203 is used to cover the structure of the driving rack 204 and the gear ring 207 to prevent dust from falling in.
[0026] One end of the driving rack 204 extends through the dust removal box 1 to the outside, and a connecting rod structure is provided at the end of the driving rack 204, which is used to connect one end of several driving racks 204. A cylinder 2 is installed on the outer side wall of the dust removal box 1, and the output end of the cylinder 2 is fixedly connected to the connecting rod. The driving rack 204 is moved by the extension and retraction of the cylinder 2, thereby realizing the rotation of the outer cylinder 201 on the inner cylinder 208.
[0027] The reverse dust removal equipment includes a compressed air bag 5 and a pulse pipe 7. A solenoid valve 6 is arranged between the pulse pipe 7 and the compressed air bag 5. A plurality of nozzles corresponding to the positions of the dust filter bags 8 are arranged at the bottom of the pulse pipe 7. When removing dust, the solenoid valve 6 is opened to allow compressed air to be sprayed from the bottom of the pulse pipe 7 to the opening of the dust filter bags 8, so that the dust on the surface of the dust filter bags 8 is shaken off.
[0028] An exhaust duct 10 is provided outside the dust removal box 1 and above the flower plate 9 to discharge the filtered clean air.
[0029] Working principle of the utility model: when removing dust, the electromagnetic valve 6 is opened to allow compressed air to be ejected from the bottom of the pulse pipe 7 to the opening of the dust filter bag 8, causing the dust on the surface of the dust filter bag 8 to fall off. At this time, a small amount of floating dust will float in the dust box 1. At this time, the cylinder 2 is extended and retracted to drive the drive rack 204 to move. When the drive rack 204 moves, it can drive the outer cylinder 201 to rotate through the matching gear ring 207. When the air inlet 205 of the outer cylinder 201 is concentric with the through hole of the inner cylinder 208, suction is sucked through the exhaust device 210, and the exhaust device 210 is connected to the bottom of the inner cylinder 208 through a pipeline. When the exhaust device 210 is working, suction is generated, so that the dust floating in the dust box 1 is adsorbed into the dust box 202 through the through holes on the inner cylinder 208, and is discharged into the ash hopper 4 from the bottom of the dust box 202 again. Compared with the existing technology, the filter bag dust removal device can solve the problem of dust floating in the dust box 1 after reverse pulse cleaning of the filter bag, so as to avoid this part of the dust from adhering to the dust filter bag 8 again. In this way, the filtering time of the dust filter bag 8 can be increased, and there is no need to frequently recoil clean the dust filter bag 8. On the other hand, it also avoids the problem of easy damage to the dust filter bag 8 caused by frequent recoil cleaning.
[0030] After cleaning, the cylinder 2 is driven again to rotate the outer cylinder 201 again, so that the air inlet 205 of the outer cylinder 201 is staggered with the through hole on the inner cylinder 208. In this state, when the dust removal box 1 is working normally, dust will not enter the inner cylinder 208.
[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0032] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A filter bag dust removal device, comprising a dust removal box (1), a ash hopper (4) at the bottom of the dust removal box (1), and a frame (3) for mounting the dust removal box (1), characterized in that: The dust collecting box (1) is provided with a flower plate (9) on the top, and a plurality of through-hole structures for installing dust filter bags (8) are provided on the flower plate (9), and the dust filter bags (8) are installed on the flower plate (9) through the through-holes via a support frame, and a reverse dust removal device for blowing air from the inside of the dust filter bags (8) is installed on the top of the dust collecting box (1), and a dust suction mechanism for absorbing floating dust is also installed inside the dust collecting box (1) and between the gaps of the dust filter bags (8), and the dust suction mechanism comprises an ash collecting box (202), and a plurality of inner cylinders (208) structures installed on the top of the ash collecting box (202), and the inner cylinders (208) are provided with through-hole structures connected to the outside, and the bottom of the ash collecting box (202) is provided with a dust dropping hole. The dust collecting box (202) has a through-hole structure, and an exhaust device (210) is also arranged inside the dust collecting box (202). The exhaust device (210) is connected to the bottom of the inner cylinder (208) through a pipeline. The dust collecting mechanism also includes an outer cylinder (201) sleeved on the inner cylinder (208). The outer cylinder (201) is rotatably arranged on the inner cylinder (208). An air inlet hole (205) corresponding to the position of the inner cylinder (208) is opened on the outer cylinder (201). A gear ring (207) is arranged at the bottom of the outer cylinder (201). A driving rack (204) is also arranged at the top of the dust collecting box (202). The driving rack (204) is meshed with the gear ring (207). The driving rack (204) is movably arranged at the top of the dust collecting box (202).
2. A filter bag dust removal device according to claim 1, characterized in that: The exhaust device (210) is a vacuum cleaner or a fan, and the fan or vacuum cleaner is connected to a plurality of inner cylinders (208) via a pipeline, and the dust collection box (202) is a trapezoidal structure with a larger upper portion and a smaller lower portion.
3. A filter bag dust removal device according to claim 2, characterized in that: Both ends of the driving rack (204) are provided with convex keys (206) on the upper and lower surfaces. The top end surface of the ash collecting box (202) is provided with a keyway (209) in which the convex key (206) can slide. The length of the keyway (209) is greater than the convex key (206). The driving rack (204) is in close contact with the top surface of the ash collecting box (202), and the convex key (206) can slide in the keyway (209). When the driving rack (204) moves, it drives the outer cylinder (201) to rotate through the matching gear ring (207). The air inlet (205) of the outer cylinder (201) is staggered with the through hole on the inner cylinder (208).
4. A filter bag dust removal device according to claim 3, characterized in that: A sealing cover (203) is provided on the top of the ash collecting box (202).
5. A filter bag dust removal device according to claim 4, characterized in that: One end of the driving rack (204) passes through the dust removal box (1) and extends to the outside, and a connecting rod structure is provided at the end of the driving rack (204), the connecting rod being used to connect one end of a plurality of driving racks (204), and a cylinder (2) is installed on the outer side wall of the dust removal box (1), the output end of the cylinder (2) is fixedly connected to the connecting rod, and the cylinder (2) is extended and retracted to drive the driving rack (204) to move.
6. A filter bag dust removal device according to claim 5, characterized in that: The reverse dust removal device comprises a compressed air bag (5) and a pulse pipe (7), a solenoid valve (6) is arranged between the pulse pipe (7) and the compressed air bag (5), and a plurality of nozzles corresponding to the positions of the dust removal filter bags (8) are arranged at the bottom of the pulse pipe (7); A through exhaust duct (10) is provided outside the dust removal box (1) and above the flower plate (9) for discharging filtered clean air.