A vibrating baghouse dust collector

Abstract

This application provides a vibrating bag filter, including a dust collection box with a horizontal partition inside. Bag cages are mounted on the partitions, and filter bags are fitted over the bag cages. A blower mechanism is located above the partitions. The bag cages include several circumferentially arranged ribs, each rib including a sliding rod and a sleeve fitted onto the sliding rod. The upper end of the sleeve is connected to the partition, and the lower end of the sliding rod is connected to the filter bag. The blower mechanism includes an air supply unit with several air pipes rotatably connected to its lower part. The air pipes are inserted into the filter bags and rotate around their vertical axes. Air outlets are located on the side walls of the air pipes. A moving block protrudes from the sliding rod into the filter bag. A pushing block is located on the side wall of the air pipe. One side of the pushing block in the direction of rotation is an inclined surface. When the pushing block rotates, the moving block is pushed upward by this inclined surface and then instantly downward when it reaches the other side of the pushing block. This dust collector, by pushing the sliding rod upward and then rapidly falling downward, causes the filter bag to vibrate violently, resulting in better dust removal.

Description

[0001] Cross-references to related applications This application claims priority to a utility model patent filed on October 31, 2024, with application number 2024226395764, entitled "A Vibrating Bag Filter", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of waste gas dust collector technology, specifically a vibrating bag filter. Background Technology

[0003] Industrial waste gas often carries a large amount of dust, which, if not properly treated, can cause serious environmental pollution. Therefore, waste gas must undergo dust removal treatment before being emitted, and existing dust removal equipment is usually a bag filter. Bag filters use the gaps in the fabric of the filter bags to filter dust from the waste gas, thus purifying it. However, after prolonged use, a large amount of dust accumulates on the surface of the filter bags, clogging them and reducing or even eliminating their filtration efficiency. To solve this problem, existing bag filters incorporate a blowing device at the bag's opening to blow air into the bag, using the reverse blowing force to dislodge dust from the outer surface. Additionally, pulsed airflow is used to cause the bag to expand and contract, further shaking off dust.

[0004] In practice, while pulsed air blowing can cause the filter bags to shake, this action is a gradual process, and the effect of shaking off dust is not good. In addition, existing blowing devices blow air at the port of the filter bag, which cannot blow air all over the inside of the bag, and require a high-power motor to provide the blowing power, resulting in limited dust removal efficiency. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model provides a vibrating bag filter.

[0006] The technical solution of this utility model is as follows: A vibrating bag filter includes a dust collection box with a horizontal partition inside. A bag cage is provided on the partition, and a cloth bag is fitted on the outside of the bag cage. A blower mechanism is provided above the partition. The bag cage includes several circumferentially arranged keels. Each keel includes a slide rod and a sleeve fitted on the slide rod. The upper end of the sleeve is connected to the partition, and the lower end of the slide rod is connected to the cloth bag. The blower mechanism includes an air supply unit, and several blower tubes are rotatably connected to the lower part of the air supply unit. The blower tubes are inserted into the cloth bag and rotate around their own vertical axis. Air outlet holes are provided on the side wall of the blower tubes. A sliding block protrudes into the bag, and a pushing block is provided on the side wall of the blower tube. One side of the pushing block is an inclined surface in the direction of rotation. When the pushing block rotates, the moving block is pushed upward by the inclined surface and moves downward instantaneously when it reaches the other side of the pushing block.

[0007] When cleaning the cloth bag, the blower is driven to rotate, which in turn drives the pusher block to move the moving block upward. The moving block then moves the slide bar upward, causing the cloth bag to fold upward. As the blower rotates, when the pusher block passes under the slide bar, the moving block moves downward instantly under the gravity of the slide bar, causing the cloth bag to straighten instantly and generate a violent vibration that shakes off the dust, resulting in a more effective dust removal.

[0008] In addition, the blower tube is inserted into the cloth bag and rotates inside the bag, which makes the blowing area wider and the dust removal effect better.

[0009] In the above scheme, the pushing block includes several blocks, which are spaced apart along the circumference of the blower pipe, and the spacing is greater than the width of the moving block, so that the slide bar vibrates multiple times in one rotation of the blower pipe to improve the dust removal efficiency.

[0010] Preferably, the pusher block is a trapezoidal block, with one side of its rotation direction being an inclined surface and the other side being a vertical surface.

[0011] In order to make the bag vibrate evenly and make effective use of the aftershocks, several push blocks are evenly spaced along the circumference of the blower pipe.

[0012] To avoid affecting the setting of the air outlet, the push block is preferably set at the lower part of the side wall of the air blower.

[0013] In this application, a limiting part is provided at the lower end of the sleeve, and a chuck is provided at the upper end of the slide rod. The chuck slides inside the sleeve. Through the cooperation of the limiting part and the chuck, the slide rod is prevented from sliding out of the sleeve, and the slide rod is also prevented from excessively pulling the cloth bag, causing damage to the cloth bag.

[0014] To ensure the smooth downward movement of the slide bar, a tension spring is installed between the limiting part and the chuck. When the slide bar moves upward, the tension spring is stretched and deformed. When the pushing block moves past the moving block, the tension spring pulls the slide bar downward. At the same time, due to the combined action of elasticity and gravity, the slide bar causes the cloth bag to vibrate more strongly, resulting in a better dust-shaking effect.

[0015] To facilitate bag replacement, the sleeve and partition are detachably connected, and the bag can be removed by taking out the bag cage.

[0016] In this application, an air outlet pipe protrudes downward from the lower part of the air supply unit, and a blower pipe is sleeved outside the air outlet pipe. A gap exists between the lower end and sidewall of the blower pipe and the lower end and sidewall of the blower pipe, and the upper end is rotatably connected to the air outlet pipe. This double-pipe connection allows for higher air pressure at the air outlet and stronger airflow, resulting in better dust removal, while maintaining the same air supply volume. Conversely, it effectively reduces the power of the air supply motor and lowers costs while maintaining the same dust removal effect.

[0017] In this application, a driven wheel is sleeved on the outer side of the upper end of the blower tube, and a driving wheel is provided on the partition plate. The driving wheel is connected to a drive motor, and drives the driven wheel to rotate via a belt, thereby driving the blower tube to rotate. This structure can drive multiple blower tubes to rotate with one motor, simplifying the structure and reducing costs.

[0018] This utility model provides a vibrating bag filter, which uses the rotation of the blower pipe to drive the sliding rod to move up and down, causing the filter bag to vibrate violently in an instant, thereby improving the dust removal effect. It has a fast dust removal speed, high efficiency, and better effect, which can shorten the time of gas stoppage for dust removal and improve the overall dust removal efficiency of exhaust gas. Attached Figure Description

[0019] In the attached diagram: Figure 1 This is a cross-sectional schematic diagram of a bag filter. Figure 2 for Figure 1 Enlarged diagram of section A in the middle; Figure 3 for Figure 1 Enlarged schematic diagram of section B in the middle; Figure 4 for Figure 1 Enlarged diagram of section C; Figure 5 This is a schematic diagram of the top of the partition in a bag filter view.

[0020] The components represented by the various reference numerals in the diagram are: 1. Dust collector box; 2. Partition plate; 3. Bag cage; 31. Slide rod; 311. Moving block; 312. Chuck; 32. Sleeve; 321. Limiting part; 33. Tension spring; 4. Filter bag; 51. Air supply part; 511. Air outlet pipe; 52. Blower pipe; 521. Air outlet; 522. Pushing block; 6. Driven wheel; 7. Driving wheel. Detailed Implementation

[0021] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a vibrating bag filter, including a dust collection box 1, a horizontal partition 2 inside the dust collection box 1, a bag cage 3 on the partition 2, a cloth bag 4 on the outside of the bag cage 3, and a blower mechanism above the partition 2.

[0022] The dust collector 1 and the partition 2 are both existing technologies. The dust collector 1 has an air outlet and an air inlet, located above and below the partition 2, respectively. The partition 2 has several through holes. The bag cage 3 is connected to the through holes and extends downwards from the partition 2. The filter bag 4 is fitted over the outside of the bag cage 3 and connected to the bag cage 3. The upper end of the filter bag is sealed to the through holes to prevent air leakage. For specific structural details, those skilled in the art can refer to existing technologies, and will not be described in detail here.

[0023] The technical improvement of this embodiment is that the bag cage 3 includes several circumferentially arranged keels, the keels include a slide rod 31 and a sleeve 32 sleeved on the slide rod 31, the upper end of the sleeve 32 is connected to the partition plate 2, and the lower end of the slide rod 31 is connected to the cloth bag 4. The blower mechanism includes an air supply unit 51, and a number of blower pipes 52 are rotatably connected to the lower part of the air supply unit 51. The blower pipes 52 are inserted into the cloth bag 4 and rotate around their own vertical axis. The side wall of the blower pipe 52 is provided with air outlet holes 521. There are multiple air outlet holes 521, which are densely arranged in an array on the side wall of the blower pipe 52. At least one sliding rod 31 has a movable block 311 protruding into the cloth bag 4. A pushing block 522 is provided on the side wall of the blower pipe 52. One side of the pushing block 522 in the direction of rotation is an inclined surface. When the pushing block 522 rotates, the movable block 311 is pushed upwards by this inclined surface, and upon reaching the other side of the pushing block 522, it momentarily moves downwards. This momentary downward movement of the movable block 311 causes the cloth bag 4 to vibrate strongly, thereby improving the dust-shaking effect.

[0024] In detail, the push block 522 may include several blocks, which are spaced apart around the circumference of the blower pipe 52 and the spacing is greater than the width of the moving block 311, so that the slide bar 31 can vibrate multiple times when the blower pipe 52 rotates once, thereby improving the dust removal efficiency.

[0025] Preferably, a number of push blocks 522 are evenly spaced along the circumference of the blower pipe 52 so that the bag 4 vibrates evenly and the aftershocks are effectively utilized.

[0026] In this example, the bag cage 3 includes six ribs arranged at even intervals in a circumferential direction. Each of the six ribs has a movable block 311 on its sliding rod 31. The blower pipe 52 is correspondingly provided with six pushing blocks 522, arranged at even intervals. The six pushing blocks 522 can simultaneously push the movable blocks 311 upward, so that the six sliding rods 31 are simultaneously subjected to an upward pushing force, thereby making the sliding rods 31 of the bag cage 3 uniformly stressed and smoothly moved upward, and causing the cloth bag 4 to move upward and fold.

[0027] In this embodiment, the six sleeves 32 can be connected into one piece by a ring-shaped member, and the six slide rods 31 can also be connected into one piece by a ring-shaped member, so as to provide structural strength and facilitate movement together.

[0028] This application does not limit the number of moving blocks 311 and pushing blocks 522. It can be that one moving block 311 corresponds to multiple pushing blocks 522, or multiple moving blocks 311 correspond to one pushing block 522, or multiple moving blocks 311 correspond to multiple pushing blocks 522. The number of both can be the same or different. In any case, as long as the pushing block 522 can push all moving blocks 311 upward and all moving blocks 311 instantly move downward when the pushing block 522 leaves below the moving blocks 311, this embodiment only provides a preferred technical solution and is not a limitation.

[0029] In this embodiment, the pushing block 522 is a trapezoidal block with one side of its rotation direction being an inclined surface and the other side being a vertical surface. The inclined surface is conducive to pushing the moving block 311 upward, while the vertical surface on the other side allows the moving block 311 to fall freely in an instant, thereby achieving the purpose of violently shaking the cloth bag 4.

[0030] To avoid affecting the setting of the air outlet 521, the push block 522 is preferably set at the lower part of the side wall of the air blowing pipe 52.

[0031] More specifically, such as Figure 3 As shown, in this embodiment, a limiting part 321 is provided at the lower end of the sleeve 32, and a chuck 312 is provided at the upper end of the slide rod 31. The chuck 312 slides inside the sleeve 32. Through the cooperation of the limiting part 321 and the chuck 312, the slide rod 31 is prevented from sliding out of the sleeve, and the slide rod 31 is prevented from pulling the cloth bag 4 excessively, causing damage to the cloth bag 4.

[0032] Preferably, a tension spring 33 may also be provided between the limiting part 321 and the chuck 312. Under normal conditions, the tension spring 33 presses on the limiting part 321, and the chuck 312 presses on the tension spring 33. The tension spring 33 is in a non-deformed state, and the cloth bag 4 is in a straight state. When the pushing block 522 pushes the slide rod 31 upward by the moving block 311, it stretches and deforms the tension spring 33. When the pushing block 522 moves below the moving block 311, the tension spring 33 pulls the slide rod 31 downward. Under the combined action of elasticity and gravity, the slide rod 31 causes the cloth bag 4 to vibrate more strongly, resulting in a better dust-shaking effect.

[0033] In addition, to facilitate the replacement of the cloth bag 4, the sleeve 32 is detachably connected to the partition plate 2, and the cloth bag 4 can be removed by taking out the bag cage 3.

[0034] like Figure 4As shown, in this embodiment, the lower part of the air supply unit 51 has a downwardly protruding air outlet pipe 511, and the blower pipe 52 is sleeved on the outside of the air outlet pipe 511. A gap is provided between the lower end and side wall of the blower pipe 52 and the lower end and side wall of the air outlet pipe 511. Gas flows from the lower end of the air outlet pipe 511 into the gap between the air outlet pipe 511 and the blower pipe 52, and is blown out from the air outlet 521. The upper end of the blower pipe 52 is rotatably connected to the air outlet pipe 511. By using a double-pipe sleeve, the air space inside the blower pipe 52 is reduced. Under the same air supply volume, the air pressure at the air outlet is higher, the airflow is stronger, and the dust removal effect is better. Conversely, under the same dust removal effect, the power of the air supply motor can be effectively reduced, thus reducing costs.

[0035] In this application, the blower tube 52 is driven to rotate by a drive mechanism. In some embodiments, one drive mechanism may be provided for each blower tube 52. In this embodiment, as shown... Figure 1 and Figure 5 As shown, the partition 2 has only one drive wheel 7, which is connected to the drive shaft of the drive motor. A driven wheel 6 is sleeved on the outer side of the upper end of the blower pipe 52. The drive wheel 7 drives the driven wheel 6 to rotate via a belt, which in turn drives the blower pipe 52 to rotate. This structure can drive multiple blower pipes 52 to rotate with one motor, simplifying the structure and reducing costs.

[0036] This utility model provides a vibrating bag filter. When cleaning the filter bag 4, the blowing pipe 52 is driven to rotate, which drives the pushing block 522 to push the moving block 311 upward. The moving block 311 drives the sliding rod 31 upward, and the sliding rod 31 moves the filter bag 4 upward to fold. As the blowing pipe 52 rotates, when the pushing block 522 moves under the sliding block, the moving block 311 falls instantaneously under the sliding rod 31, causing the filter bag 4 to straighten instantly and generate violent vibration to improve the dust removal effect. It has a fast dust removal speed, high efficiency, and better effect, which can shorten the time of gas stoppage for dust removal and improve the overall dust removal efficiency of exhaust gas.

[0037] In addition, the blower pipe 52 is inserted into the cloth bag 4 and rotates inside the cloth bag 4, which makes its blowing surface wider and the dust removal effect better.

[0038] In addition, the use of a double-pipe connection can increase wind power while reducing the power of the air supply motor, thus lowering costs.

Claims

1. A vibrating bag filter, comprising a dust collection box (1), wherein a horizontal partition (2) is provided inside the dust collection box (1), a bag cage (3) is provided on the partition (2), a cloth bag (4) is fitted on the outside of the bag cage (3), and a blower mechanism is provided above the partition (2), characterized in that, The bag cage (3) includes several circumferentially arranged keels, each keel including a slide rod (31) and a sleeve (32) fitted on the slide rod (31). The upper end of the sleeve (32) is connected to the partition (2), and the lower end of the slide rod (31) is connected to the cloth bag (4). The blower mechanism includes an air supply unit (51), and a plurality of blower pipes (52) are rotatably connected to the lower part of the air supply unit (51). The blower pipes (52) are inserted into the cloth bag (4) and rotate around their own vertical axis. An air outlet (521) is provided on the side wall of the blower pipe (52). At least one of the slide rods (31) has a moving block (311) protruding into the cloth bag (4). The side wall of the blower pipe (52) is provided with a push block (522). One side of the push block (522) in the direction of rotation is an inclined surface. When the push block (522) rotates, the moving block (311) is pushed upward by the inclined surface and moves downward instantaneously when it reaches the other side of the push block (522).

2. The vibrating bag filter as described in claim 1, characterized in that, The push block (522) includes several blocks, which are arranged at intervals along the circumference of the blow pipe (52), and the interval distance is greater than the width of the moving block (311).

3. A vibrating bag filter as described in claim 2, characterized in that, The push block (522) is a trapezoidal block with one side of its rotation direction being an inclined surface and the other side being a vertical surface.

4. A vibrating bag filter as described in claim 3, characterized in that, Several of the push blocks (522) are evenly spaced along the circumference of the blow pipe (52).

5. A vibrating bag filter as described in claim 4, characterized in that, The push block (522) is located on the lower side wall of the blow pipe (52).

6. A vibrating bag filter as described in claim 1, characterized in that, The sleeve (32) is provided with a limiting part (321) at the lower end, and the slide rod (31) is provided with a chuck (312) at the upper end, and the chuck (312) slides inside the sleeve (32).

7. A vibrating bag filter as described in claim 6, characterized in that, A tension spring (33) is provided between the limiting part (321) and the chuck (312).

8. A vibrating bag filter as described in claim 7, characterized in that, The sleeve (32) is detachably connected to the partition (2).

9. A vibrating bag filter as described in claim 1, characterized in that, The lower part of the air supply unit (51) has an air outlet pipe (511) protruding downward. The blower pipe (52) is sleeved outside the air outlet pipe (511). There is a gap between its lower end and side wall and the lower end and side wall of the air outlet pipe (511). Its upper end is rotatably connected to the air outlet pipe (511).

10. A vibrating bag filter as described in any one of claims 1-9, characterized in that, The blower tube (52) has a driven wheel (6) sleeved on the outer side of its upper end. The partition plate (2) has a driving wheel (7). The driving wheel (7) is connected to a drive motor and drives the driven wheel (6) to rotate via a belt.

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