Dust collecting cloth bag for dry powder packaging

Abstract

The utility model discloses a dust collecting cloth bag for dry powder packaging, and belongs to the technical field of dust collecting cloth bags. Comprising a dust removal shell, an air inlet pipe is arranged on one side of the dust removal shell, an air outlet pipe is arranged at the upper end of the dust removal shell and connected with an external air extractor, a dust collecting hopper and a discharging pipe are arranged at the bottom of the dust removal shell, and a supporting piece is arranged in the dust removal shell; a framework and a filter bag sleeved outside the framework are arranged on the supporting piece; and a cleaning assembly for cleaning dust on the surface of the filter bag is also arranged on the supporting piece. According to the dust collecting cloth bag for dry powder packaging, the scraping plate for cleaning the filter bag is made of a flexible material and is provided with a fillet or an arc-shaped edge, so that direct damage of a traditional rigid scraping plate to the surface of the filter bag is avoided, and the wear rate of the filter bag is remarkably reduced; the scraper is connected with the vertical rod through the spring to form an elastic buffer structure, so that excessive friction is avoided, and the filter bag is further protected. The flexible scraping plate and the elastic buffering structure can adapt to filter bags of different materials and specifications, and the high universality and adaptability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of dust collector bags, specifically a dust collector bag for dry powder packaging. Background Technology

[0002] Regular cleaning of filter bags is crucial for ensuring the normal operation of a dust collection system. Excessive dust accumulation not only reduces the filtration efficiency of the bags but can also cause blockages, damage, and even system failure. Furthermore, excessive dust buildup increases energy consumption, reduces production efficiency, and causes secondary pollution. Therefore, regular cleaning of filter bags is essential for maintaining system performance and extending the lifespan of the filter bags.

[0003] Traditional dust removal methods include scraper cleaning, which mainly relies on mechanical scraping to remove dust particles attached to the surface of the filter bag. However, by having a hard scraper directly contact the surface of the filter bag and using the sharpness of the scraper's edge or its rigid structure to peel off the accumulated dust, excessive friction is generated during the cleaning process, which greatly increases the wear rate of the fibers on the surface of the filter bag. Utility Model Content

[0004] The purpose of this utility model is to provide a dust collector bag for dry powder packaging, so as to solve the problem that the scraper used in the existing dust collector bag cleaning process is too rigid in material and design, which will generate too much friction on the bag and cause the bag to be easily damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust collector bag for dry powder packaging, comprising a dust collector housing, an air inlet pipe on one side of the dust collector housing, an air outlet pipe at the upper end of the dust collector housing connected to an external exhaust fan, and a dust collection hopper and a discharge pipe at the bottom of the dust collector housing.

[0006] The dust removal housing is equipped with internal support components;

[0007] The support member is provided with a skeleton and a filter bag sleeved on the outside of the skeleton;

[0008] The support is also equipped with a cleaning component for cleaning dust from the surface of the filter bag.

[0009] Preferably, the support includes a circular plate fixed to the inner wall of the dust collector housing, the circular plate having a through hole inside, and the frame located inside the through hole and mounted on the circular plate.

[0010] Preferably, the cleaning assembly includes a ring, and a synchronous gear is fixedly sleeved on the outer wall of the ring.

[0011] Preferably, the upper end of the circular plate is provided with a motor frame and a motor mounted on the motor frame, and the output end of the motor is provided with a main gear, which meshes with a synchronous gear.

[0012] Preferably, the circular plate also has an annular groove inside, and the annular groove is located outside the through hole.

[0013] Preferably, a vertical rod is fixedly provided at the lower end of the ring, and the vertical rod is located inside the annular groove, with a scraper provided on the side of the vertical rod near the skeleton.

[0014] Preferably, the scraper is fixedly connected to the vertical rod by a spring.

[0015] Preferably, the scraper is a spiral structure made of flexible material, and the edge of the spiral structure abuts against the outer wall of the filter bag.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model discloses a dust collector bag for dry powder packaging. The scraper for cleaning the filter bag is made of flexible material and has rounded corners or arc edges to avoid direct damage to the filter bag surface caused by traditional rigid scrapers, significantly reducing the wear rate of the filter bag. The scraper is connected to the vertical rod by a spring to form an elastic buffer structure, avoiding excessive friction and further protecting the filter bag. The flexible scraper and elastic buffer structure can adapt to filter bags of different materials and specifications, and have strong versatility and adaptability.

[0018] 2. This utility model discloses a dust collector bag for dry powder packaging. The scraper for cleaning the filter bag adopts a spiral structure, which can better fit the surface of the filter bag, ensuring no dead corners are covered during the cleaning process and resulting in a more uniform cleaning effect. The rotation direction of the spiral scraper can be flexibly adjusted according to the orientation of the discharge port, optimizing the dust collection path and improving cleaning efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the dust collector bag for dry powder packaging according to this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the dust collector bag for dry powder packaging according to this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the dust collector bag for dry powder packaging according to this utility model. Figure 3 ;

[0022] Figure 4 This is a schematic diagram of the structure of the dust collector bag for dry powder packaging according to this utility model. Figure 4 ;

[0023] Figure 5 This is a schematic diagram of the structure of the dust collector bag for dry powder packaging according to this utility model. Figure 5 ;

[0024] Figure 6 This is a schematic diagram of the structure of the dust collector bag for dry powder packaging according to this utility model. Figure 6 ;

[0025] Figure 7 This is a cross-sectional view of the scraper of the dust removal bag for dry powder packaging according to this utility model.

[0026] In the diagram: 1. Dust collector housing; 2. Circular plate; 3. Frame; 4. Filter bag; 5. Motor; 6. Main gear; 7. Synchronous gear; 8. Ring; 9. Vertical rod; 10. Spring; 11. Scraper; 12. Annular groove; 13. Through hole. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-7 This embodiment provides the following technical solution:

[0029] A dust collector bag for dry powder packaging includes a dust collector housing 1. An air inlet pipe is provided on one side of the dust collector housing 1, and an air outlet pipe is provided at the upper end of the dust collector housing 1, which is connected to an external exhaust fan. A dust collection hopper and a discharge pipe are provided at the bottom of the dust collector housing 1. A support member is provided inside the dust collector housing 1. A frame 3 and a filter bag 4 are provided on the support member. A cleaning component for cleaning dust on the surface of the filter bag 4 is also provided on the support member.

[0030] When the dust-laden flue gas enters the dust collector housing 1 through the inlet pipe, it will directly enter the chamber below the support. Then, the exhaust fan is turned on, which will generate a suction force that pulls the flue gas from the dust collector housing 1 toward the outlet pipe. The flue gas below the support will move upward and pass through the filter bag 4 to achieve filtration. The cleaning component uses a rotating scraping method to clean the dust on the outer wall of the filter bag 4. The scraped dust falls into the dust collection hopper and is finally discharged from the discharge pipe.

[0031] The support includes a circular plate 2 fixed to the inner wall of the dust collector housing 1. The circular plate 2 has a through hole 13 inside. The frame 3 is located inside the through hole 13 and is mounted on the circular plate 2. The circular plate 2 can provide a support position for the frame 3. The frame 3 can be easily installed in the through hole 13, which is convenient for later maintenance and replacement.

[0032] The cleaning assembly includes a ring 8, on the outer wall of which a synchronous gear 7 is fixedly sleeved.

[0033] The upper end of the circular plate 2 is provided with a motor frame and a motor 5 mounted on the motor frame. The output end of the motor 5 is provided with a main gear 6, and the main gear 6 meshes with the synchronous gear 7.

[0034] The circular plate 2 also has an annular groove 12 inside, and the annular groove 12 is located outside the through hole 13.

[0035] A vertical rod 9 is fixedly installed at the lower end of the ring 8, and the vertical rod 9 is located inside the annular groove 12. A scraper 11 is provided on the side of the vertical rod 9 near the skeleton 3.

[0036] By starting the motor 5, its output end drives the main gear 6 for transmission. Since the main gear 6 and the synchronous gear 7 mesh, they drive the ring 8 and the vertical rod 9 to rotate together, so that the scraper 11 scrapes the dust off the outer wall of the filter bag 4. The annular groove 12 facilitates the rotation of the vertical rod 9.

[0037] The scraper 11 is fixedly connected to the vertical rod 9 by a spring 10. By adopting an elastic structure, the scraper 11 has a certain buffer when it comes into contact with the filter bag 4, which avoids excessive friction caused by the fixed scraper 11 and the filter bag 4 being too tightly pressed together, thus preventing damage to the filter bag. In addition, the movable scraper 11 also facilitates the disassembly and replacement of the filter bag 4.

[0038] The scraper 11 is a spiral structure made of flexible material. The edge of the spiral structure abuts against the outer wall of the filter bag 4. This flexible material is made of rubber or polyurethane, which is less likely to scratch the filter bag 4. The scraper 11 has rounded or arc-shaped edges, which is better than right-angled edges, as it reduces the sharp parts in direct contact. The spiral design of the scraper 11 allows for better contact with the filter bag 4, resulting in more even cleaning and less damage to the filter bag 4. It should be noted that the rotation direction of the spiral scraper 11 is best arranged according to the orientation of the discharge port. If the discharge port is downward, a clockwise rotation should be selected.

[0039] Because the scraper 11 has strong elasticity, it will not cause excessive wear to the surface of the filter bag 4. Its spiral design not only ensures good contact between the scraper 11 and the surface of the filter bag 4, but also provides a uniform cleaning effect when it rotates. The spiral scraper 11 design, combined with the flexible material and elastic buffer structure, can effectively reduce the friction between the filter bag 4 and the scraper 11, avoiding wear of the filter bag 4 due to excessive friction.

[0040] The scraper 11 has a rounded or arc-shaped edge design. Compared with the traditional right-angled edge, this design can significantly reduce the sharp friction when the scraper 11 comes into contact with the filter bag 4, further improving its service life. Especially during the dust removal process, when the scraper 11 comes into contact with the filter bag 4, it can reduce local damage caused by scraping dust.

[0041] Working principle: During use, the dust-laden flue gas enters the dust collector housing 1 through the inlet pipe and directly enters the chamber below the circular plate 2. Then, the exhaust fan is turned on, which generates a suction force that pulls the flue gas from the dust collector housing 1 towards the outlet pipe. The flue gas below the support will move upward and pass through the filter bag 4 for filtration. The purified gas enters the top of the circular plate 2 through the through hole 13 and exits through the outlet pipe. When it is necessary to clean the outer wall of the filter bag 4, the motor 5 is started, and its output end drives the main gear 6 for transmission. Since the main gear 6 and the synchronous gear 7 mesh, they drive the ring 8 and the vertical rod 9 to rotate together, so that the scraper 11 scrapes the dust off the outer wall of the filter bag 4. The spring 10 provides a certain buffer when the scraper 11 contacts the filter bag 4, so as to avoid the fixed scraper 11 from being too close to the filter bag 4 and causing excessive friction and damage to the filter bag. The scraper 11 is set in a spiral shape, which can better fit the filter bag 4, and the rotating cleaning will clean more evenly and cause less damage to the filter bag 4.

[0042] 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 dust collector bag for dry powder packaging, comprising a dust collector housing (1), an air inlet pipe on one side of the dust collector housing (1), an air outlet pipe at the upper end of the dust collector housing (1) and the air outlet pipe being connected to an external exhaust fan, and a dust collection hopper and a discharge pipe at the bottom of the dust collector housing (1), characterized in that: The dust removal housing (1) is provided with a support member inside; The support is provided with a skeleton (3) and a filter bag (4) sleeved on the outside of the skeleton (3). The support is also provided with a cleaning component for cleaning dust on the surface of the filter bag (4); the cleaning component includes a ring (8), and a synchronous gear (7) is fixedly sleeved on the outer wall of the ring (8); a vertical rod (9) is fixedly provided at the lower end of the ring (8), and the vertical rod (9) is located inside the annular groove (12), and a scraper (11) is provided on the side of the vertical rod (9) near the frame (3); the scraper (11) is fixedly connected to the vertical rod (9) by a spring (10); the scraper (11) is a spiral structure made of flexible material, and the edge of the spiral structure abuts against the outer wall of the filter bag (4).

2. A dedusting cloth bag for dry powder packaging according to claim 1, characterized in that: The support includes a circular plate (2) fixed to the inner wall of the dust collector housing (1), with a through hole (13) inside the circular plate (2), and the frame (3) located inside the through hole (13) and mounted on the circular plate (2).

3. A dedusting cloth bag for dry powder packaging according to claim 2, characterized in that: The upper end of the circular plate (2) is provided with a motor frame and a motor (5) mounted on the motor frame. The output end of the motor (5) is provided with a main gear (6), and the main gear (6) meshes with the synchronous gear (7).

4. The dedusting cloth bag for dry powder packaging according to claim 2, characterized in that: The circular plate (2) is also provided with an annular groove (12), and the annular groove (12) is located outside the through hole (13).

Images