Breakage-proof device for filter bag of bag type dust collector
By introducing air splitters into the bag dust collector, the flow rate of dust-containing gas is adjusted and the dust is prevented from being sucked up again, the problem of filter bags in traditional bag dust collectors is solved, and the dust collection efficiency and service life of the equipment are improved.
Patent Information
- Application Number
- CN202420939144.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the ash collection and fall of the ash in the traditional bag dust collector, the dust is easily absorbed again, causing the filter bag to be damaged, affecting the dust collection effect and increasing maintenance costs.
A damage-proof device is designed, including a air splitter plate, which prevents dust from being sucked up again by adjusting the flow rate of dust-containing gas. The air splitter plate is composed of two flower-hole plates welded at a certain angle, forming a "human" font structure, with the angle controlled between 30° and 45°.
It effectively reduces the risk of breakage of filter bags, improves dust collection efficiency and equipment service life, and reduces maintenance costs.
Smart Images
Figure CN222854896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bag dust collectors, in particular to an anti-breakage device for filter bags of bag dust collectors. Background Art
[0002] Bag dust collectors are key dust collection equipment in various industries such as mining, metallurgy, chemical industry, and building materials. Their performance and effect are directly related to the cleanliness of the production environment and the efficiency of the production process. However, there are some significant problems with traditional bag dust collectors during use.
[0003] During the operation of the bag filter, dust is filtered by the filter bag and then falls into the ash hopper. However, in the process of collecting the fallen dust in the ash hopper, due to the strong airflow force near the air outlet, some of the fallen dust is often sucked up again, forming turbulence. This turbulence not only causes direct impact and friction on the filter bag, but also easily causes the filter bag to be damaged under long-term action. Moreover, the dust sucked up again will re-attach to the filter bag, affecting the dust collection effect. When the dust collector performs pulse cleaning, this part of the dust will fall into the ash hopper again and go through the process of being sucked up again, forming a vicious cycle.
[0004] Damage to the filter bag will not only greatly reduce the dust collection effect, causing "dust leakage" and seriously polluting the environment, but also increase the maintenance workload and maintenance costs of the dust collection equipment; companies need to frequently replace filter bags, which not only affects the continuity of production, but also adds unnecessary economic burdens;
[0005] Therefore, how to effectively solve the problem of dust being sucked up again during the process of collecting fallen dust in the ash hopper of the bag dust collector, reduce the damage of the filter bags, improve the dust collection effect, and reduce the maintenance cost is a key issue that needs to be urgently solved in the current development of bag dust collector technology. Utility Model Content
[0006] In order to solve the above technical problems, the utility model provides an anti-breakage device for filter bags of bag-type dust collectors.
[0007] The utility model provides an anti-breakage device for filter bags of bag-type dust collectors, comprising:
[0008] Guardrail, which is installed on the dust collecting body, is used for inspection or maintenance protection.
[0009] The pulse system is installed on the upper part of the dust collecting body and includes a compressed air bag and a pulse valve for cleaning the filter bag;
[0010] The dust collecting body is equipped with an air outlet, an air inlet, and a filter bag. The filter bag contains a cage support to prevent the filter bag from deforming. The interval area between the air outlet and the air inlet is the working area of the filter bag.
[0011] The ash hopper, inspection door, discharger and air distributor are all arranged at the lower part of the dust collecting body. The air distributor is composed of two perforated plates welded at a certain angle to form a "human" shaped structure. The angle is controlled between 30° and 45° to adjust the flow rate of the dust-laden gas and protect the filter bags.
[0012] Preferably, the air distribution plate is installed near the air outlet, and its installation position is adjusted according to the damage of the filter bag to ensure that the filter bag that is severely damaged is protected.
[0013] Preferably, the number of the air distribution plates to be installed is determined according to the damaged area of the filter bag, and the total area of the air distribution plates is slightly larger than the damaged area of the dust collecting filter bag to protect the filter bag to the greatest extent.
[0014] Preferably, the perforated plate on the air distribution plate is formed by stamping, and its area accounts for at least 35% of the total area of the perforated plate.
[0015] Preferably, in order to prevent the air distribution plate from deforming during use, a rib plate and a support tube are welded inside the "human" shaped structure. The rib plate and the support tube are generally installed in a triangular arrangement, and each group of air distribution plates is installed with 3 to 4 sets of support structures.
[0016] Preferably, the structure and installation position of the air distribution plate are optimized to achieve effective protection of the filter bags of the bag dust collector, reduce the risk of filter bag damage, and improve the dust collection efficiency and service life of the equipment.
[0017] Compared with the related art, the anti-breakage device for filter bags of bag-type dust collector provided by the utility model has the following beneficial effects:
[0018] The bag dust collector filter bag anti-breakage device provided by the utility model effectively solves the filter bag breakage problem existing in the traditional bag dust collector by introducing the design and application of the air distribution plate; the air distribution plate prevents the dust falling into the ash hopper from being sucked up again by adjusting the flow rate of the dust-containing gas, thereby reducing the impact and friction on the filter bag; this not only prolongs the service life of the filter bag, but also reduces the maintenance cost of the dust collection equipment;
[0019] In addition, by optimizing the structure and installation position of the air distribution plate, the utility model can also achieve accurate protection of the filter bag; according to the damage of the filter bag, the installation position and number of the air distribution plate can be adjusted to ensure that the seriously damaged filter bag is better protected; this accurate protection not only improves the dust collection effect, but also extends the service life of the filter bag;
[0020] In summary, the bag dust collector filter bag anti-breakage device provided by the utility model has significant beneficial effects, can be widely used in bag dust collectors in various industries, and bring better economic and environmental benefits to the production of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic diagram of the structure of the anti-breakage device for filter bags of bag-type dust collectors provided by the utility model;
[0022] Figure 2 This is a front view of the air distribution plate of the utility model;
[0023] Figure 3 It is a left view of the air distribution plate of the utility model.
[0024] Numbers in the figure: 1. Guardrail; 2. Dust collecting body; 3. Pulse system; 4. Air inlet; 5. Ash hopper; 6. Inspection door; 7. Discharger; 8. Filter bag; 9. Air outlet; 10. Air distributor; 10-1. Perforated plate; 10-2. Rib plate; 10-3. Support pipe. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0027] See also Figures 1 to 3, an anti-breakage device for filter bags of bag-type dust collectors, the anti-breakage device for filter bags of bag-type dust collectors comprising: a guardrail 1, a dust collecting body 2, a pulse system 3, an ash hopper 5, an inspection door 6, a discharger 7 and an air distributor 10, the guardrail 1 is installed on the dust collecting body 2 for inspection or maintenance protection, the pulse system 3 is installed on the upper part of the dust collecting body 2, comprising a compressed air bag and a pulse valve for cleaning the filter bag 8, the dust collecting body 2 is provided with an air outlet 9, an air inlet 4, and a filter bag 8, the filter bag 8 contains a cage support The support prevents the filter bag 8 from deforming. The interval area between the air outlet 9 and the air inlet 4 is the working area of the filter bag 8. The ash hopper 5, the inspection door 6, the discharger 7 and the air distribution plate 10 are all arranged at the lower part of the dust collecting body 2, wherein the air distribution plate 10 is composed of two flower hole plates 10-1 welded at a certain angle to form a "human" shaped structure. The angle is controlled between 30° and 45° to adjust the flow rate of the dust-containing gas to protect the filter bag 8. The air distribution plate 10 is installed near the air outlet 9, and its installation position is based on The number of air distribution plates 10 to be installed is determined according to the damaged area of the filter bag 8, and the total area of the air distribution plates 10 is slightly larger than the damaged area of the dust collecting filter bag 8 to protect the filter bag 8 to the greatest extent. The perforated plate 10-1 on the air distribution plate 10 is formed by stamping, and its area accounts for at least 35% of the total area of the perforated plate 10-1. The perforated plate 10-1 needs to be cleaned of burrs, welding slag and other impurities during the manufacturing process. In order to prevent the The air distributor 10 is deformed during use, and its "human" shaped structure has rib plates 10-2 and support tubes 10-3 welded inside. The rib plates 10-2 and support tubes 10-3 are generally installed in a triangular arrangement. Each group of air distributors 10 is installed with 3 to 4 sets of support structures, and burrs, welding slag, etc. are cleaned up during installation. The structure and installation position of the air distributor 10 are optimized to achieve effective protection of the bag filter 8 of the bag dust collector, reduce the risk of damage to the filter bag 8, and improve the dust collection efficiency and the service life of the equipment.
[0028] The working principle of the anti-breakage device for filter bags of bag-type dust collector provided by the utility model is as follows:
[0029] During the operation of the bag filter, the dust-laden gas first enters the dust collecting body 2 through the air inlet 4; under the action of the dust collecting fan, the gas is filtered through the filter bag 8; the filter bag 8 is made of a special high-pressure polyester material, which can effectively block most of the dust and make it adhere to the outer surface of the filter bag 8;
[0030] As time goes by, dust gradually accumulates on the filter bag 8. In order to remove the dust, a pulse system 3 is provided in the device. The pulse system 3 is set at a fixed time and uses the compressed air in the compressed air bag to spray into the filter bag 8 at high speed through the spray pipe. The high-speed airflow at this moment makes the filter bag 8 expand and shake rapidly, so that the dust layer attached to the surface of the filter bag 8 is separated from the filter bag 8 due to inertia and falls into the ash hopper 5.
[0031] However, in the design of the conventional bag dust collector, the dust falling into the ash hopper 5 is easily sucked up again by the dust collecting fan, forming turbulence; this turbulence not only causes impact and friction to the filter bag 8, causing the filter bag 8 to be damaged, but also causes part of the dust to reattach to the filter bag 8, affecting the dust collection effect;
[0032] In order to solve this problem, the utility model introduces the design of an air distribution plate 10; the air distribution plate 10 is installed near the air outlet 9, and its angle is carefully designed and adjusted to be controlled between 30° and 45° to effectively adjust the flow rate of the dust-containing gas; through the blocking effect of the air distribution plate 10, the dust falling into the ash hopper 5 is effectively controlled within a certain range and will not be sucked up again to form turbulence;
[0033] In addition, the herringbone structure of the air distributor 10 and the internally welded ribs 10-2 and support tubes 10-3 not only enhance its structural stability and prevent deformation, but also ensure the reliability of the device during long-term operation;
[0034] When the machine is stopped for maintenance, the staff can conveniently check the damage of the filter bag 8 and the wear of the air distributor 10 through the inspection door 6 on the ash hopper 5; once the filter bag 8 is found to be damaged or the air distributor 10 is worn, it can be replaced and repaired in time, thereby ensuring the continuous stable operation and efficient dust collection effect of the bag dust collector;
[0035] In summary, the utility model achieves efficient protection of the filter bag 8 by combining the basic working principle of the bag dust collector with the innovative design of the air distribution plate 10, improves the dust collection efficiency, reduces maintenance costs, and provides strong technical support and guarantee for the production of enterprises.
[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A device for preventing the filter bag of a bag dust collector from being damaged, characterized in that: include: A guardrail (1) is installed on the dust collecting body (2) and is used for inspection or maintenance protection; A pulse system (3) installed on the upper part of the dust collecting body (2), comprising a compressed air bag and a pulse valve, for cleaning the filter bag (8); A dust collecting body (2) is provided with an air outlet (9), an air inlet (4), and a filter bag (8); the filter bag (8) contains a cage support to prevent the filter bag (8) from deforming; and the interval area between the air outlet (9) and the air inlet (4) is a working area of the filter bag (8); The ash hopper (5), the inspection door (6), the discharger (7) and the air distribution plate (10) are all arranged at the lower part of the dust collecting body (2), wherein the air distribution plate (10) is composed of two perforated plates (10-1) welded at a certain angle to form a "human" shaped structure, and the angle is controlled between 30° and 45° to adjust the flow rate of the dust-containing gas and realize the protection of the filter bag (8).
2. The anti-breakage device for filter bags of bag-type dust collector according to claim 1, characterized in that: The air distribution plate (10) is installed at a position close to the air outlet (9), and its installation position is adjusted according to the damage of the filter bag (8) to ensure that the filter bag (8) that is severely damaged is protected.
3. The anti-breakage device for filter bags of bag-type dust collector according to claim 2, characterized in that: The number of air distribution plates (10) to be installed is determined according to the damaged area of the filter bag (8), and the total area of the air distribution plates (10) to be arranged is slightly larger than the damaged area of the dust collecting filter bag (8) so as to protect the filter bag (8) to the greatest extent.
4. The anti-breakage device for filter bags of bag-type dust collector according to claim 1, characterized in that: The perforated plate (10-1) on the air distribution plate (10) is formed by punching, and its area accounts for at least 35% of the total area of the perforated plate (10-1).
5. The anti-breakage device for filter bags of bag-type dust collector according to claim 1, characterized in that: In order to prevent the air distribution plate (10) from deforming during use, a rib plate (10-2) and a support tube (10-3) are welded inside the herringbone structure. The rib plate (10-2) and the support tube (10-3) are generally installed in a triangular arrangement, and each group of air distribution plates (10) is installed with 3 to 4 sets of support structures.
6. The anti-breakage device for filter bags of bag-type dust collector according to claim 5, characterized in that: The structure and installation position of the air distribution plate (10) are optimized to achieve effective protection of the filter bag (8) of the bag dust collector, reduce the risk of damage to the filter bag (8), and improve the dust collection efficiency and the service life of the equipment.