Bag type dust collector

Abstract

The utility model discloses a bag type dust collector, which relates to the technical field of bag type dust collection, and adopts the technical scheme that the bag type dust collector comprises a box body, a chamber is arranged in the box body, a fixed plate is arranged in the chamber, a filter bag is detachably connected in the fixed plate, a framework is mounted in the filter bag, and an inspection component is arranged on the framework and is used for adhering dust particles. According to the utility model, when a certain filter bag is damaged, coal ash or dust attached in the air can enter the filter bag through the outer wall of the filter bag, and when the dust passes through the inspection assembly, the dust can be adhered to the inspection assembly, so that a maintainer can preliminarily confirm which filter bags are damaged by checking the inspection assembly; compared with the mode that each filter bag is detached and observed, the mode has the advantages that the distinguishing of the damaged filter bags is quicker, the downtime of the bag type dust collector can be shortened, and the working efficiency of the bag type dust collector can be improved.

Description

Technical Field

[0001] This utility model relates to the field of bag filter technology, and more specifically, to a bag filter dust collector. Background Technology

[0002] Baghouse dust collectors are a type of dust removal equipment widely used in industrial dust removal, such as in the treatment of exhaust gas during coal processing. They can effectively remove dust particles such as coal dust from the air. A baghouse dust collector includes components such as a housing, a filtration system, a dust removal system, and a control system. The housing is set with several chambers, and each chamber is equipped with a filtration system consisting of several filter bags. Existing baghouse dust collectors use the principle of negative pressure to allow air carrying dust particles to enter from the bottom of the filter bag. Larger dust particles are filtered out by the outer wall of the filter bag, and the filtered air exits through the top of the filter bag. To prevent the filter bag from deforming excessively under air pressure, a frame is also set in the filter bag to provide support.

[0003] When too many dust particles adhere to the outer wall of the filter bag, it will affect the subsequent air intake of the filter bag. It is necessary to clean the dust on the outer wall of the filter bag regularly through the dust removal system. The dust removal system introduces pulse airflow into the inside of the filter bag, causing the filter bag to expand rapidly under the action of airflow and then contract rapidly. This continuous expansion and contraction of the filter bag in a short period of time will cause the dust adhering to the filter bag to fall off, thus achieving the cleaning effect of the filter bag. However, the expansion and contraction will cause some damage to the filter bag. When individual filter bags are damaged, it will affect the dust removal effect of the bag filter, and the damaged filter bags need to be replaced in time.

[0004] In existing technologies, dust concentration sensors are usually installed in the chamber to allow maintenance personnel to quickly determine the chamber where the damaged filter bag is located. However, since the chamber contains several filter bags, maintenance personnel still need to inspect all the filter bags in the chamber by visual observation, which is inconvenient.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bag filter.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bag filter, including a housing, wherein the housing is provided with a plurality of chambers, a fixing plate is provided in the chambers, a plurality of filter bags are detachably connected to the fixing plate, a frame for supporting the filter bags is installed in the filter bags, and an inspection component located inside the filter bags is provided on the frame, the inspection component being used to adhere dust particles.

[0008] The present invention is further configured such that: the inspection component includes a bracket detachably connected to the frame and a test paper pasted on the bracket, the surface of the test paper being coated with adhesive.

[0009] The present invention is further configured such that: the frame includes a mounting ring and a support arm fixed below the mounting ring; the fixing plate has a threaded hole, and the mounting ring is threadedly connected to the threaded hole.

[0010] The present invention is further configured such that: an arc-shaped groove is provided on the inner peripheral wall of the mounting ring, a groove communicating with the arc-shaped groove is provided on the top surface of the mounting ring, and a limiting block is provided on the side wall of the bracket, the limiting block can pass through the groove and enter the arc-shaped groove.

[0011] The present invention is further configured such that: the cross-section of the bracket is an isosceles trapezoid, and the thickness of the end of the bracket away from the limiting block is less than the thickness of the end of the bracket close to the limiting block.

[0012] The present invention is further configured such that: a lifting ring is rotatably connected to the top surface of the mounting ring, and a groove for receiving the lifting ring is provided on the top surface of the mounting ring.

[0013] In summary, this utility model has the following beneficial effects: When one or more filter bags are damaged, dust particles in the air can pass through the damaged filter bags, affecting the filtration effect of the bag filter. Maintenance personnel need to replace the damaged filter bags. The inspection components installed in the filter bags can adhere to the dust particles in the air. After stopping the bag filter, maintenance personnel can observe the inspection components installed in each filter bag. When a large amount of dust particles adhere to the inspection components in one or more filter bags, it can be preliminarily confirmed that the filter bag is damaged, and then it can be replaced. This design allows maintenance personnel to directly determine whether a filter bag is damaged by observing the dust adhesion on the inspection components. Compared with the traditional method of removing each filter bag for observation, this method is more efficient, reduces the downtime of the bag filter, and allows the bag filter to be put into use more quickly. Attached Figure Description

[0014] Figure 1 This is a partial cross-sectional view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the filter bag and the support in this utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0017] In the diagram: 1. Box body; 2. Fixing plate; 3. Filter bag; 4. Bracket; 5. Test paper; 6. Mounting ring; 7. Support arm; 8. Threaded hole; 9. Arc groove; 10. Groove; 11. Limiting block; 12. Lifting ring; 13. Embedded groove. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Baghouse dust collectors, such as Figure 1 and Figure 2 As shown, the baghouse includes a housing 1 containing several chambers. Each chamber has a fixed plate 2, and several filter bags 3 are detachably connected to the fixed plate 2. The chambers are separated from each other, and each chamber is equipped with a dust concentration alarm. Each filter bag 3 has a support frame, and the frame has an inspection component located inside the filter bag 3. The inspection component is used to adhere dust particles. During the use of the baghouse dust collector, dust particles in the air adhere to the outer wall of the filter bags 3 as they pass through, while air can pass through normally. This allows the air passing through the filter bags 3 to be effectively filtered. When the dust concentration alarm in a certain chamber sounds, it indicates that one or more filter bags 3 in that chamber are damaged, causing the dust particles in the air to become trapped. Damaged filter bags 3 can affect the filtration efficiency of a baghouse dust collector, requiring maintenance personnel to replace them. The inspection components installed in the filter bags 3 can trap airborne dust particles. After stopping the baghouse dust collector, maintenance personnel can observe the inspection components installed in each filter bag 3. When a large amount of dust particles adheres to the inspection components in one or more filter bags 3, it can be preliminarily confirmed that the filter bag 3 is damaged, and it can then be replaced. This setup allows maintenance personnel to directly determine whether a filter bag 3 is damaged by observing the dust adhesion on the inspection components. Compared to the traditional method of removing each filter bag 3 for observation, this method is more efficient, reduces downtime of the baghouse dust collector, and allows it to be put into use more quickly.

[0020] like Figures 2 to 3As shown, the inspection assembly includes a bracket 4 detachably connected to the frame and a test paper 5 adhered to the bracket 4. The test paper 5 is white and coated with adhesive. The adhesive effectively adheres to dust particles. The white test paper 5 contrasts with the coal ash-containing dust, making it easier for maintenance personnel to observe. When the chamber is dimly lit and it is difficult to observe dust adhesion, maintenance personnel can remove the bracket 4 from the frame to check the dust adhesion on the test paper 5. The frame includes a mounting ring 6 and a support arm 7 fixed below the mounting ring 6. The inner wall of the filter bag 3 is adhered to the support arm 7, allowing the support arm 7 to provide good support for the filter bag 3. The fixing plate 2 has a threaded hole 8, and the mounting ring 6 is threaded into the threaded hole 8. This design allows the filter bag 3 to be replaced easily by unscrewing the mounting ring 6 from the threaded hole 8, thus relieving the frame's restriction on the fixing plate 2. The inner circumferential wall of the mounting ring 6 has an arc-shaped groove 9, and the top surface of the mounting ring 6 has a groove 10 communicating with the arc-shaped groove 9. The side wall of the bracket 4 has a limiting block 11, which can pass through the groove 10 and enter the arc-shaped groove 9. One side wall of the groove 10 coincides with one side wall of the arc-shaped groove 9. When disassembling the bracket 4 to check for dust adhesion, the maintenance personnel rotate the bracket 4 to rotate the limiting block 11 along the inner wall of the arc-shaped groove 9. When the limiting block 11 rotates to below the groove 10, the bracket 4 can be lifted to allow the limiting block 11 to pass through the groove 10, separating the bracket 4 from the mounting ring 6. Maintenance personnel can then inspect the test paper 5 removed from the bracket 4. A protrusion is provided on the inner wall of the arc-shaped groove 9, and a limiting groove is provided on the limiting block 11 for the protrusion to be embedded in. When installing the bracket 4 in the arc-shaped groove 9, the protrusion needs to be embedded in the limiting groove so that it can restrict the bracket 4 and prevent it from rotating on its own in the arc-shaped groove 9 during use. The cross-section of the bracket 4 is an isosceles trapezoid, and the thickness of the end of the bracket 4 away from the limiting block 11 is less than the thickness of the end closer to the limiting block 11. The test paper 5, which is attached to the bracket 4, is tilted towards the bottom surface of the filter bag 3, so that the projected area of ​​the test paper 5 in the direction of airflow is larger, thus allowing dust particles to adhere to the test paper 5 more easily. The top surface of the mounting ring 6 is rotatably connected to the lifting ring 12. The top surface of the mounting ring 6 has a groove 13 for receiving the lifting ring 12. When it is necessary to replace the damaged filter bag 3, the maintenance personnel can turn the lifting ring 12 out of the groove 13 and then apply torque to the lifting ring 12 so that the lifting ring 12 can transmit torque to the mounting ring 6, which facilitates the relative rotation between the mounting ring 6 and the inner wall of the threaded hole 8, so that the maintenance personnel have a better position to apply force to remove the mounting ring 6 from the threaded hole 8.

[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bag filter, comprising a housing (1) having a plurality of chambers therein, characterized in that: The chamber is provided with a fixing plate (2), and a number of filter bags (3) are detachably connected to the fixing plate (2). The filter bags (3) are equipped with a frame for supporting the filter bags (3). The frame is provided with an inspection component located inside the filter bags (3). The inspection component is used to adhere dust particles.

2. The bag filter according to claim 1, characterized in that: The inspection assembly includes a bracket (4) detachably connected to the frame and a test paper (5) pasted on the bracket (4), the surface of which is coated with adhesive.

3. The bag filter according to claim 2, characterized in that: The frame includes a mounting ring (6) and a support arm (7) fixed below the mounting ring (6). The fixing plate (2) has a threaded hole (8), and the mounting ring (6) is threaded into the threaded hole (8).

4. The bag filter according to claim 3, characterized in that: The mounting ring (6) has an arc-shaped groove (9) on its inner peripheral wall and a groove (10) communicating with the arc-shaped groove (9) on its top surface. The bracket (4) has a limiting block (11) on its side wall. The limiting block (11) can pass through the groove (10) and enter the arc-shaped groove (9).

5. The bag filter according to claim 4, characterized in that: The cross section of the bracket (4) is an isosceles trapezoid, and the thickness of the end of the bracket (4) away from the limiting block (11) is less than the thickness of the end of the bracket (4) close to the limiting block (11).

6. The bag filter according to claim 3, characterized in that: The top surface of the mounting ring (6) is rotatably connected to a lifting ring (12), and the top surface of the mounting ring (6) is provided with a groove (13) for receiving the lifting ring (12).

Images