High-negative-pressure dust removal device

Abstract

The utility model relates to the technical field of dust removal equipment, and discloses a high negative pressure dust removal device which comprises a dust removal bin, a fixing seat is welded and connected to the outer side of the dust removal bin, a first sliding groove and a second sliding groove are fixedly connected to the inner wall of the dust removal bin, an exhaust fan is fixedly connected to the left side of the dust removal bin, and a cloth bag reciprocating assembly is arranged at the front end of the dust removal bin. According to the high-negative-pressure dust removal device, a half gear is connected with an upper rack and a lower rack in a meshed mode, and the upper rack and the lower rack are distributed in a central symmetry mode, so that a driving motor can stably drive a reciprocating ring to do reciprocating rectilinear motion through rotation of the half gear, and then a movable plate and a cloth bag body are accurately driven to efficiently shake in a reciprocating mode through a connecting frame; the device is simple in structure and high in transmission efficiency, can ensure that the shaking frequency and amplitude of the cloth bag body are stable, effectively prevents dust from being accumulated and caked on the surface of the cloth bag body, improves the dust removal efficiency and dust removal effect of the cloth bag body, and reduces the frequency and workload of manual dust removal.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically a high negative pressure dust removal device. Background Technology

[0002] In today's industrial production, various production processes generate a large amount of dust-laden gas, such as those in mining, metallurgy, chemical, and building materials industries. If these dust-laden gases are emitted directly without effective treatment, they will not only cause serious air pollution to the surrounding environment, endangering ecological balance and human health, but may also cause safety hazards such as explosions due to dust accumulation, posing a huge risk to enterprise production. Traditional dust removal devices often expose many defects when facing high concentration and high negative pressure conditions. The bag cleaning method of some dust collectors is not effective, and the cleaning is incomplete, resulting in reduced air permeability of the bags and reduced dust removal efficiency. Frequent manual cleaning increases labor intensity and cost, affecting the continuity of production. Therefore, a high negative pressure dust removal device is proposed.

[0003] Chinese Utility Model Patent Publication No. CN 221846448 U discloses a high negative pressure dust collector. This dust collector creates a negative pressure within its casing, allowing dust-laden airflow to quickly enter the filter bags for filtration. It boasts high dust removal efficiency, effectively shaking off accumulated dust from the filter bags to prevent clogging. Dust in the dust collection hopper and discharge valve is also promptly dislodged to prevent blockage. However, the filter bags are driven by a positioning rod and vibration generator, combined with an elastic drive assembly, resulting in poor vibration controllability. Furthermore, the filter bags are difficult to disassemble and maintain, impacting operational efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a high negative pressure dust removal device, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is as follows: a high negative pressure dust removal device, including a dust removal chamber, a fixed base welded to the outside of the dust removal chamber, a sliding groove one and a sliding groove two fixedly connected to the inner wall of the dust removal chamber, an exhaust fan fixedly connected to the left side of the dust removal chamber, a bag reciprocating assembly provided at the front end of the dust removal chamber, a telescopic sealing sleeve fixedly connected to the lower end of the dust removal chamber, a collection hopper fixedly connected to the lower end of the telescopic sealing sleeve, a dust inlet pipe fixedly connected to the rear end of the collection hopper, vibration motors fixedly connected to both sides of the collection hopper, a dust discharge valve fixedly connected to the lower end of the collection hopper, a support leg fixedly connected to the lower end of the dust removal chamber, an elastic bracket fixedly connected to the inner side of the support leg, a sealing plate fixedly connected inside the dust removal chamber, and a negative pressure hole opened at the lower end of the sealing plate;

[0006] The bag reciprocating assembly includes a front sealing plate, a drive motor, a limiting groove, a half gear, a reciprocating ring, an upper rack, a lower rack top plate, a bag body, a moving plate, a dust discharge sleeve, and a connecting frame. The front end of the front sealing plate is fixedly connected to the drive motor, and the rear end of the front sealing plate is fixedly connected to the limiting groove. The output end of the drive motor is fixedly connected to the half gear. A reciprocating ring is provided inside the limiting groove. The top of the reciprocating ring is fixedly connected to the upper rack, and the bottom of the reciprocating ring is fixedly connected to the lower rack. The rear end of the front sealing plate is fixedly connected to the top plate, and the lower end of the top plate is fixedly connected to the bag body. The end of the bag body away from the top plate is fixedly connected to the moving plate, and the lower end of the moving plate is fixedly connected to the dust discharge sleeve. The rear end of the reciprocating ring is fixedly connected to the connecting frame.

[0007] Preferably, the first slide is located below the sealing plate, the first slide is adapted to the top plate, and the first slide and the top plate are connected by an insertion joint.

[0008] The above technical solution includes two chutes: Chute 1 and Chute 2. When the bag reciprocating assembly needs to be fixed to the dust collection chamber after maintenance, it can be positioned by inserting the top plate into Chute 1 and Chute 2 into the moving plate. The positioning effect is good, thus ensuring the stability and reliability of the dust collection work and facilitating the installation and maintenance of the equipment.

[0009] Preferably, the movable plate can slide laterally along the second slide groove, and the movable plate and the limiting groove are slidably connected.

[0010] Through the above technical solution, the sliding connection between the moving plate and the second slide groove and the limiting groove not only restricts the movement trajectory of the moving plate, making it only able to slide stably laterally, but also ensures the stability of the bag body during the reciprocating motion.

[0011] Preferably, the half gear is meshed with the upper rack and the lower rack, the upper rack and the lower rack are centrally symmetrically distributed around the center of the reciprocating ring, the reciprocating ring is slidably connected to the limiting groove, and the moving plate is fixedly connected to the connecting frame.

[0012] Through the above technical solution, the half gear meshes with the upper and lower racks, and the upper and lower racks are symmetrically distributed at their centers. This allows the drive motor to stably drive the reciprocating ring to perform reciprocating linear motion through the rotation of the half gear. In turn, the connecting frame precisely drives the moving plate and the bag body to perform efficient reciprocating vibration. This results in high transmission efficiency and ensures stable vibration frequency and amplitude of the bag body. It effectively prevents dust from accumulating and clumping on the surface of the bag, improves the dust removal efficiency and cleaning effect of the bag, and reduces the frequency and workload of manual cleaning.

[0013] Preferably, the dust outlet sleeve is connected to the outer side of the lower end of the bag body, and the telescopic sealing sleeve is made of fluororubber.

[0014] Through the above technical solution, the telescopic sealing sleeve is made of fluororubber. Fluororubber has excellent high temperature resistance, corrosion resistance and good elastic sealing performance, and can maintain a good sealing effect under high negative pressure environment.

[0015] Preferably, the elastic support includes a support frame, a spring, and a top seat, with the spring fixedly connected to the upper end of the support frame and the top seat fixedly connected to the upper end of the spring.

[0016] The above technical solution incorporates an elastic support. The dust discharge valve opens during material discharge, simultaneously activating the vibration motor to generate excitation force that is transmitted to the collection hopper. This prevents dust from accumulating and adhering to the inner wall of the collection hopper. The elastic buffering effect of the spring and the telescopic sealing sleeve ensure a flexible connection between the collection hopper and the dust collection chamber. This effectively reduces the impact of vibrations caused by the operation of the vibration motor or other factors on the dust collection chamber and the entire equipment during operation.

[0017] Preferably, the top of the top seat is fixedly connected to the collection hopper.

[0018] With the above technical solution, the top of the top seat is fixedly connected to the collection hopper, so that the vibration generated by the collection hopper is weakened by the spring, which has little impact on the stability of the device.

[0019] Compared with the prior art, this utility model provides a high negative pressure dust removal device, which has the following beneficial effects:

[0020] 1. This high negative pressure dust removal device is equipped with chute one and chute two. When the bag reciprocating assembly needs to be fixed to the dust collection chamber after maintenance, it can be positioned by inserting the top plate into chute one and chute two into the moving plate. The positioning effect is good, thus ensuring the stability and reliability of the dust removal work and facilitating the installation and maintenance of the equipment.

[0021] 2. This high negative pressure dust removal device features a half-gear meshing with the upper and lower racks, which are symmetrically distributed at their centers. This allows the drive motor to stably drive the reciprocating ring to perform reciprocating linear motion via the rotation of the half-gear. This, in turn, precisely drives the moving plate and the filter bag body to perform efficient reciprocating shaking through the connecting frame. This results in high transmission efficiency and ensures stable shaking frequency and amplitude of the filter bag body. It effectively prevents dust from accumulating and agglomerating on the surface of the filter bag body, improving the dust removal efficiency and cleaning effect of the filter bag body, and reducing the frequency and workload of manual cleaning.

[0022] 3. This high negative pressure dust removal device is equipped with an elastic support. The dust discharge valve opens when the material is discharged, and the vibrating motor is started at the same time to generate excitation force that is transmitted to the collection hopper. This prevents dust from accumulating and adhering to the inner wall of the collection hopper. The elastic buffering effect of the spring and the telescopic sealing sleeve make the collection hopper and the dust removal chamber a soft connection, which can effectively reduce the impact of vibration of the collection hopper caused by the operation of the vibrating motor or other factors on the dust removal chamber and the entire equipment during operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram showing the disassembled structure of the dust collection bin and bag reciprocating assembly of this utility model;

[0025] Figure 3 This is a schematic cross-sectional view of the dust collection chamber and bag reciprocating assembly of this utility model.

[0026] Figure 4 This is an enlarged structural schematic diagram of the reciprocating bag assembly of this utility model;

[0027] Figure 5 This is a schematic diagram of the disassembled structure of the reciprocating bag assembly of this utility model.

[0028] The components include: 1. Dust collection chamber; 2. Fixed base; 3. Slide 1; 4. Slide 2; 5. Exhaust fan; 6. Bag reciprocating assembly; 601. Front sealing plate; 602. Drive motor; 603. Limiting groove; 604. Half gear; 605. Reciprocating ring; 606. Upper rack; 607. Lower rack; 608. Top plate; 609. Bag body; 610. Moving plate; 611. Dust discharge sleeve; 612. Connecting frame; 7. Telescopic sealing sleeve; 8. Collection hopper; 9. Dust inlet pipe; 10. Vibrating motor; 11. Dust discharge valve; 12. Support leg; 13. Elastic bracket; 1301. Support frame; 1302. Spring; 1303. Top seat; 14. Sealing plate; 15. Negative pressure hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figure 1-5As shown, the present invention provides a high negative pressure dust removal device, including a dust removal chamber 1, a fixed base 2 welded to the outside of the dust removal chamber 1, a sliding groove 3 and a sliding groove 4 fixedly connected to the inner wall of the dust removal chamber 1, an exhaust fan 5 fixedly connected to the left side of the dust removal chamber 1, a bag reciprocating assembly 6 provided at the front end of the dust removal chamber 1, a telescopic sealing sleeve 7 fixedly connected to the lower end of the dust removal chamber 1, a collection hopper 8 fixedly connected to the lower end of the telescopic sealing sleeve 7, a dust inlet pipe 9 fixedly connected to the rear end of the collection hopper 8, a vibration motor 10 fixedly connected to both sides of the collection hopper 8, a dust discharge valve 11 fixedly connected to the lower end of the collection hopper 8, a support leg 12 fixedly connected to the lower end of the dust removal chamber 1, an elastic bracket 13 fixedly connected to the inner side of the support leg 12, a sealing plate 14 fixedly connected inside the dust removal chamber 1, and a negative pressure hole 15 opened at the lower end of the sealing plate 14.

[0031] The bag reciprocating assembly 6 includes a front sealing plate 601, a drive motor 602, a limiting groove 603, a half gear 604, a reciprocating ring 605, an upper rack 606, a lower rack 607, a top plate 608, a bag body 609, a moving plate 610, a dust discharge sleeve 611, and a connecting frame 612. The front end of the front sealing plate 601 is fixedly connected to the drive motor 602, and the rear end of the front sealing plate 601 is fixedly connected to the limiting groove 603. The output end of the drive motor 602 is fixedly connected to the half gear 604. The limiting groove 603 contains... The unit is equipped with a reciprocating ring 605. An upper rack 606 is fixedly connected to the top of the reciprocating ring 605, and a lower rack 607 is fixedly connected to the bottom of the reciprocating ring 605. A top plate 608 is fixedly connected to the rear end of the front sealing plate 601. A bag body 609 is fixedly connected to the lower end of the top plate 608. A movable plate 610 is fixedly connected to the end of the bag body 609 away from the top plate 608. A dust discharge sleeve 611 is fixedly connected to the lower end of the movable plate 610. A connecting frame 612 is fixedly connected to the rear end of the reciprocating ring 605.

[0032] Specifically, chute 3 is located below the sealing plate 14, and chute 3 is adapted to the top plate 608, with chute 3 and the top plate 608 being connected by an insertion joint. The advantage is that with chute 3 and chute 4, when the bag reciprocating assembly 6 needs to be fixed to the dust collection chamber 1 after maintenance, it can be positioned and located through the insertion joint between the top plate 608 and chute 3, and chute 4 and the moving plate 610. This provides good positioning, ensuring the stability and reliability of the dust collection operation and facilitating equipment installation and maintenance.

[0033] Specifically, the movable plate 610 can slide laterally along the second slide groove 4, and the movable plate 610 is slidably connected to the limiting groove 603. The advantage is that the slidable connection between the movable plate 610 and the second slide groove 4 and the limiting groove 603 not only restricts the movement trajectory of the movable plate 610, making it only able to slide laterally stably, but also ensures the stability of the bag body 609 during reciprocating motion.

[0034] Example 2: Figure 2-5 As shown, this is an improvement on the previous embodiment.

[0035] Specifically, the half gear 604 is meshed with the upper rack 606 and the lower rack 607. The upper rack 606 and the lower rack 607 are centrally symmetrically distributed around the center of the reciprocating ring 605. The reciprocating ring 605 is slidably connected to the limiting groove 603, and the moving plate 610 is fixedly connected to the connecting frame 612. The advantage is that the meshing connection between the half gear 604 and the upper and lower racks 606 and 607, and the centrally symmetrical distribution of the upper and lower racks 606 and 607, allows the drive motor 602 to stably drive the reciprocating ring 605 to perform reciprocating linear motion through the rotation of the half gear 604. This, in turn, precisely drives the moving plate 610 and the bag body 609 to perform efficient reciprocating vibration through the connecting frame 612. This results in high transmission efficiency and ensures stable vibration frequency and amplitude of the bag body 609, effectively preventing dust accumulation and agglomeration on the bag surface, improving the dust removal efficiency and cleaning effect of the bag, and reducing the frequency and workload of manual cleaning.

[0036] Specifically, the dust extraction sleeve 611 is connected to the lower outer side of the filter bag body 609, and the telescopic sealing sleeve 7 is made of fluororubber. The advantage is that the telescopic sealing sleeve 7 is made of fluororubber, which has excellent high-temperature resistance, corrosion resistance, and good elastic sealing performance, enabling it to maintain a good sealing effect under high negative pressure environments.

[0037] Specifically, the elastic support 13 includes a support frame 1301, a spring 1302, and a top seat 1303. The upper end of the support frame 1301 is fixedly connected to the spring 1302, and the upper end of the spring 1302 is fixedly connected to the top seat 1303. The advantage is that with the elastic support 13, the dust discharge valve 11 opens during material discharge, simultaneously activating the vibration motor 10, which generates a vibration force transmitted to the collection hopper 8, preventing dust from accumulating and adhering to the inner wall of the collection hopper 8. Utilizing the elastic buffering effect of the spring 1302, the telescopic sealing sleeve 7 provides a flexible connection between the collection hopper 8 and the dust collection chamber 1, effectively reducing the impact of vibrations caused by the operation of the vibration motor 10 or other factors on the dust collection chamber 1 and the entire equipment during operation.

[0038] Specifically, the top of the top seat 1303 is fixedly connected to the collection hopper 8. The advantage is that the fixed connection between the top of the top seat 1303 and the collection hopper 8 allows the vibration generated by the collection hopper 8 to be weakened by the spring 1302, thus having a smaller impact on the stability of the device.

[0039] Working principle: During assembly, the bag reciprocating assembly 6 and the dust collection chamber 1 are positioned and connected by the top plate 608 and the first slide 3, and the second slide 4 and the moving plate 610 through insertion and positioning. The fixed seat 2 and the front sealing plate 601 are locked and fixed with bolts, which has a good positioning effect. The bag reciprocating assembly 6 is easy to disassemble and maintain, reducing the maintenance difficulty. When the dust removal device is removing dust, the drive motor 602 is started, which can stably drive the reciprocating ring 605 to make reciprocating linear motion along the limiting groove 603 through the rotation of the half gear 604. Then, through the connecting frame 612, the moving plate 610 and the bag body 609 are precisely driven to perform efficient reciprocating shaking. Effectively prevents dust from accumulating and agglomerating on the surface of the bag body 609, improving the dust removal efficiency and cleaning effect of the bag body 609, reducing the frequency and workload of manual cleaning. The dust discharge valve 11 opens when discharging material, and at the same time starts the vibration motor 10 to generate excitation force that is transmitted to the collection hopper 8, preventing dust from agglomerating and adhering to the inner wall of the collection hopper 8. Utilizing the elastic buffering effect of the spring 1302, the telescopic sealing sleeve 7 makes the collection hopper 8 and the dust collection chamber 1 a soft connection, which can effectively reduce the impact of vibration of the collection hopper 8 caused by the operation of the vibration motor 10 or other factors on the dust collection chamber 1 and the entire equipment during operation.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high negative pressure dust removal device, comprising a dust removal chamber (1), characterized in that: A fixed base (2) is welded to the outside of the dust removal chamber (1). A sliding groove one (3) and a sliding groove two (4) are fixedly connected to the inner wall of the dust removal chamber (1). A fan (5) is fixedly connected to the left side of the dust removal chamber (1). A bag reciprocating assembly (6) is provided at the front end of the dust removal chamber (1). A telescopic sealing sleeve (7) is fixedly connected to the lower end of the dust removal chamber (1). A collection hopper (8) is fixedly connected to the lower end of the telescopic sealing sleeve (7). A dust inlet pipe (9) is fixedly connected to the rear end of the collection hopper (8). A vibration motor (10) is fixedly connected to both sides of the collection hopper (8). A dust discharge valve (11) is fixedly connected to the lower end of the collection hopper (8). A support leg (12) is fixedly connected to the lower end of the dust removal chamber (1). An elastic bracket (13) is fixedly connected to the inner side of the support leg (12). A sealing plate (14) is fixedly connected inside the dust removal chamber (1). A negative pressure hole (15) is opened at the lower end of the sealing plate (14). The bag reciprocating assembly (6) includes a front sealing plate (601), a drive motor (602), a limiting groove (603), a half gear (604), a reciprocating ring (605), an upper rack (606), a lower rack (607), a top plate (608), a bag body (609), a moving plate (610), a dust extraction sleeve (611), and a connecting frame (612). The front end of the front sealing plate (601) is fixedly connected to the drive motor (602), and the rear end of the front sealing plate (601) is fixedly connected to the limiting groove (603). The output end of the drive motor (602) is fixedly connected to the half gear (604), and the limiting groove (603) is fixedly connected to the half gear (604). The reciprocating ring (605) is provided inside. An upper rack (606) is fixedly connected to the top of the reciprocating ring (605). A lower rack (607) is fixedly connected to the bottom of the reciprocating ring (605). A top plate (608) is fixedly connected to the rear end of the front sealing plate (601). A bag body (609) is fixedly connected to the lower end of the top plate (608). A movable plate (610) is fixedly connected to the end of the bag body (609) away from the top plate (608). A dust outlet sleeve (611) is fixedly connected to the lower end of the movable plate (610). A connecting frame (612) is fixedly connected to the rear end of the reciprocating ring (605).

2. The high negative pressure dust removal device according to claim 1, characterized in that: The first slide (3) is located below the sealing plate (14), the first slide (3) is adapted to the top plate (608), and the first slide (3) and the top plate (608) are connected by a plug-in connection.

3. The high negative pressure dust removal device according to claim 1, characterized in that: The movable plate (610) can slide laterally along the second slide groove (4), and the movable plate (610) and the limiting groove (603) are slidably connected.

4. The high negative pressure dust removal device according to claim 1, characterized in that: The half gear (604) is meshed with the upper rack (606) and the lower rack (607). The upper rack (606) and the lower rack (607) are centrally symmetrically distributed around the center of the reciprocating ring (605). The reciprocating ring (605) is slidably connected to the limiting groove (603). The moving plate (610) is fixedly connected to the connecting frame (612).

5. The high negative pressure dust removal device according to claim 1, characterized in that: The dust extraction sleeve (611) is sleeved and connected to the outer side of the lower end of the bag body (609), and the telescopic sealing sleeve (7) is made of fluororubber.

6. The high negative pressure dust removal device according to claim 1, characterized in that: The elastic support (13) includes a support frame (1301), a spring (1302) and a top seat (1303). The upper end of the support frame (1301) is fixedly connected to the spring (1302), and the upper end of the spring (1302) is fixedly connected to the top seat (1303).

7. A high negative pressure dust removal device according to claim 6, characterized in that: The top of the top seat (1303) is fixedly connected to the collection hopper (8).

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