A bag filter dust collector with a bag fixing mechanism

Abstract

This utility model discloses a bag filter dust collector with a bag fixing mechanism, including a housing. Inside the housing, filter bags are installed via a mounting plate and mounting groove. A cage frame is provided inside the filter bag body. A limit hole is opened at the top of the filter bag body through a fixing ring. A limit post is provided at the top of the cage frame through a pressing plate. A locking structure is provided between the pressing plate and the mounting plate. Multiple sets of air blowing pipes are vertically arranged on the outside of the filter bag body. The air inlet end of the air blowing pipe is connected to a cold air supply structure, and a blower head is provided on the air blowing pipe facing the filter bag body. An air inlet pipe is provided on the side wall of the housing below the mounting plate, and an air outlet pipe is provided on the top of the housing. This utility model can improve the stability of the filter bag body during installation, preventing it from falling off during use. At the same time, it can achieve cooling of the filter bag body during use, preventing it from burning due to high temperature.

Description

Technical Field

[0001] This utility model relates to the field of bag filter technology, and more specifically, it relates to a bag filter with a bag fixing mechanism. Background Technology

[0002] Baghouse dust collectors are a type of dry dust collection equipment widely used in industrial production where dust emission requirements are high. They primarily utilize filter bags made of fibrous materials to capture dust and then purify the air before releasing it.

[0003] Most existing baghouse dust collectors use a cage frame to directly press and fix the filter bag body into the mounting groove on the mounting plate. During use, the installation stability of the filter bag body is poor, and it is easy for it to fall off unexpectedly.

[0004] In addition, in the existing technology, when purifying dust in the airflow through a bag filter, the airflow temperature is relatively high. When the dust comes into contact with the filter bag, it is easy to generate sparks due to friction, which can lead to the combustion of the filter bag and affect the safety protection of the bag filter during use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a bag dust collector with a bag fixing mechanism, thereby solving the technical problems mentioned in the background art, such as poor installation stability, easy ignition and combustion, and poor safety protection of the prior art bag dust collector.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A bag filter dust collector with a bag fixing mechanism includes a housing. An installation plate is provided inside the housing, and an installation groove is formed on the installation plate. A filter bag body is inserted into the installation groove, and a cage frame is provided inside the filter bag body. A fixing ring is provided at the top of the filter bag body, and a limit hole is provided on the fixing ring. A pressing plate is provided at the top of the cage frame, and a limit post is provided at the bottom of the pressing plate in conjunction with the limit hole. A locking structure is provided between the pressing plate and the installation plate. Multiple sets of air blowing pipes are vertically arranged below the installation plate and outside the filter bag body. The air inlet end of each air blowing pipe is connected to a cold air supply structure, and a blower head is provided on each air blowing pipe facing the filter bag body. An air inlet pipe is provided on the side wall of the housing below the installation plate, and an air outlet pipe is provided at the top of the housing.

[0010] The present invention is further provided with an anti-static wire at the bottom of the mounting plate and on the outside of the filter bag body, and an anti-static grounding wire extending outward from the anti-static wire to prevent dust from generating static electricity due to mutual friction during airflow and causing a fire.

[0011] The present invention is further configured such that a limiting groove is formed on the mounting plate in conjunction with a limiting post, and the limiting post and the limiting groove are engaged with each other to improve the connection stability between the pressing plate and the mounting plate.

[0012] The present invention is further configured such that the cold air supply structure includes a cold air blower, and an air supply pipe is provided between the output end of the cold air blower and the air blowing pipe to provide cold airflow to the air blowing pipe.

[0013] The present invention is further configured such that each group of multiple blower pipes is provided with a connecting ring pipe that is interconnected, thereby improving the installation and stability of the blower pipes.

[0014] The present invention is further provided that a sealing gasket is provided between the fixing ring and the mounting plate to enhance the connection and sealing between the filter bag body and the mounting plate.

[0015] The present invention is further provided that a dust collection hopper is provided at the bottom of the box, and a dust discharge structure is provided at the bottom of the dust collection hopper for collecting dust.

[0016] The present invention is further configured such that the dust removal structure includes a dust removal pipe disposed at the bottom of the dust collection hopper, and a valve is provided on the dust removal pipe for discharging dust.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a bag dust collector with a bag fixing mechanism, which has the following beneficial effects:

[0019] 1. This utility model includes a housing, inside which is provided an installation plate with an installation groove. A filter bag body is placed inside the installation groove, and a cage frame is provided inside the filter bag body. A fixing ring is provided at the top of the filter bag body, and a limiting hole is provided on the fixing ring. A pressing plate is provided at the top of the cage frame, and a limiting post is provided at the bottom of the pressing plate in conjunction with the limiting hole. A locking structure is provided between the pressing plate and the installation plate. Thus, when installing the filter bag body, the cage frame is first placed inside the filter bag body, and the cage frame carries the filter bag body together into the installation groove on the installation plate, so that the fixing ring on the filter bag body is above the installation plate, and the pressing ring at the top of the cage frame is on the fixing ring. At the same time, the limiting post at the bottom of the pressing plate extends into the limiting groove to limit the installation of the fixing ring. Then, the pressing plate is locked and fixed to the installation plate by the locking structure, thereby achieving stable installation of the filter bag body on the installation plate and preventing the filter bag body from accidentally falling off during use.

[0020] 2. This utility model features multiple sets of air blowing pipes vertically arranged below the mounting plate and on the outside of the filter bag body. The air inlet end of the air blowing pipe is connected to a cold air supply structure, and a blower head is provided on the air blowing pipe facing the filter bag body. The cold air supply structure includes a cold air fan, and an air conveying pipe is provided between the output end of the cold air fan and the air blowing pipe. In this way, during the airflow filtration process, the cold air fan is activated, and the cold air can be delivered to the air blowing pipe through the air conveying pipe. The cold air is then blown evenly towards the filter bag body through the blower head, thereby achieving cooling of the filter bag body during airflow filtration. This avoids the filter bag body from spontaneously combusting due to excessive temperature during use and improves the safety protection of the bag filter during use.

[0021] 3. An anti-static wire is installed at the bottom of the tube sheet and on the outside of the filter bag body. An anti-static grounding wire extends outward from the anti-static wire. In this way, the anti-static wire can adsorb the static electricity generated during airflow and conduct the static electricity outward through the anti-static grounding wire, thereby eliminating static electricity and preventing the filter bag body from burning due to sparks generated by static electricity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a bag filter dust collector with a bag fixing mechanism according to the present invention.

[0023] Figure 2 This is a cross-sectional view of the overall internal structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the filter bag body in this utility model;

[0025] Figure 4This is a cross-sectional schematic diagram of a partial connection structure between the mounting plate and the filter bag body in this utility model;

[0026] Figure 5 This is an exploded cross-sectional view of a portion of the connection structure between the mounting plate and the filter bag body in this utility model.

[0027] In the diagram: 1. Housing; 2. Mounting plate; 3. Mounting groove; 4. Filter bag body; 5. Cage frame; 6. Fixing ring; 7. Limiting hole; 8. Pressing plate; 9. Limiting post; 10. Locking structure; 11. Air blowing duct; 12. Air blowing head; 13. Air inlet duct; 14. Air outlet duct; 15. Anti-static wire; 16. Anti-static grounding wire; 17. Limiting groove; 18. Air cooler; 19. Air conveying duct; 20. Connecting ring pipe; 21. Sealing gasket; 22. Dust collection hopper; 23. Dust discharge pipe; 24. Valve. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5A bag filter dust collector with a bag fixing mechanism includes a housing 1. An installation plate 2 is provided inside the housing 1. An installation groove 3 is formed on the installation plate 2. A filter bag body 4 is inserted into the installation groove 3. A cage frame 5 is provided inside the filter bag body 4. A fixing ring 6 is provided at the top of the filter bag body 4, and a limit hole 7 is formed on the fixing ring 6. A pressing plate 8 is provided at the top of the cage frame 5. A limit post 9 is provided at the bottom of the pressing plate 8 to match the limit hole 7. A locking structure 10 is provided between the pressing plate 8 and the installation plate 2. Thus, when installing the filter bag body 4, the cage frame 5 is first placed into the filter bag. Inside the main body 4, the filter bag body 4 is placed into the mounting groove 3 on the mounting plate 2 along with the cage frame 5, so that the fixing ring 6 on the filter bag body 4 is located above the mounting plate 2, and the pressing ring at the top of the cage frame 5 is located on the fixing ring 6. At the same time, the limiting post 9 at the bottom of the pressing plate 8 extends into the limiting groove 17 to realize the installation limitation of the fixing ring 6. Then, the pressing plate 8 is locked and fixed on the mounting plate 2 by the locking structure 10, thereby realizing the stable installation of the filter bag body 4 on the mounting plate 2. In this way, the filter bag body 4 can be prevented from accidentally falling off during use.

[0032] This invention features multiple sets of air blowing pipes 11 vertically arranged below the mounting plate 2 and on the outside of the filter bag body 4. The air inlet end of the air blowing pipe 11 is connected to a cold air supply structure, and a blower head 12 is provided on the air blowing pipe 11 facing the filter bag body 4. The cold air supply structure includes a cold air blower 18, and an air conveying pipe 19 is provided between the output end of the cold air blower 18 and the air blowing pipe 11. In this way, during the airflow filtration process, the cold air blower 18 is started, and the cold air can be delivered to the air blowing pipe 11 through the air conveying pipe 19 and blown evenly towards the filter bag body 4 through the blower head 12. This achieves cooling of the filter bag body 4 during airflow filtration, thereby avoiding the spontaneous combustion of the filter bag body 4 due to excessive temperature during use and improving the safety of the bag filter during use.

[0033] An air inlet pipe 13 is provided on the side wall of the housing 1 and below the mounting plate 2, and an air outlet pipe 14 is provided on the top of the housing 1 for the air inlet and outlet of the air to be filtered.

[0034] Please see Figures 1-5 As one implementation of the bag filter dust collector: an anti-static wire 15 is provided at the bottom of the tube sheet 2 and on the outside of the filter bag body 4, and an anti-static grounding wire 16 is provided extending outward from the anti-static wire 15.

[0035] Specifically, to prevent dust in the airflow from generating static electricity due to friction, the static electricity generated can be adsorbed by the anti-static wire 15 during the airflow process, and the static electricity can be conducted outward by the anti-static grounding wire 16 to eliminate the static electricity and prevent the filter bag body 4 from burning due to sparks generated by static electricity.

[0036] Please see Figures 1-5 As one implementation method for mounting plate 2: a limiting groove 17 is provided on mounting plate 2 to cooperate with limiting post 9, and the limiting post 9 and the limiting groove 17 are engaged with each other.

[0037] Specifically, when locking and fixing the pressure plate 8, the limiting post 9 can be engaged into the limiting groove 17, which can improve the connection stability between the pressure plate 8 and the mounting plate 2, thereby further improving the installation stability of the filter bag body 4.

[0038] Please see Figures 1-5 As one implementation of the blower pipe 11: a connecting ring pipe 20 is provided between each group of multiple blower pipes 11.

[0039] Specifically, the connection stability between the blower pipes 11 can be improved by setting the connecting ring pipe 20.

[0040] Please see Figures 1-5 As one embodiment of the fixing ring 6: a sealing gasket 21 is provided between the fixing ring 6 and the mounting plate 2.

[0041] Specifically, the sealing gasket 21 can enhance the connection and sealing between the fixing ring 6 and the mounting plate 2, thereby enhancing the connection and sealing between the filter bag body 4 and the mounting plate 2, preventing air leakage at the connection between the filter bag body 4 and the mounting plate 2, and improving the filtration effect.

[0042] Please see Figures 1-5 As one embodiment of the housing 1: a dust collection hopper 22 is provided at the bottom of the housing 1, and a dust discharge structure is provided at the bottom of the dust collection hopper 22.

[0043] The dust removal structure includes a dust removal pipe 23 installed at the bottom of the dust collection hopper 22, and a valve 24 is installed on the dust removal pipe 23.

[0044] Specifically, the dust particles intercepted by the filter bag body 4 will fall into the dust collection hopper 22 below under their own gravity, and can be discharged outward through the dust discharge pipe 23, thus cleaning the dust.

[0045] In summary, when using the overall equipment:

[0046] The airflow to be filtered is delivered to the inside of the housing 1 through the air inlet pipe 13, the airflow passes through the filter bag body 4, and is discharged to the outside through the air outlet pipe 14.

[0047] During this process, dust is trapped on the outside of the filter bag body 4 to achieve dust filtration;

[0048] During this process, the air cooler 18 is started. The air cooler 18 can deliver the cold air to the blower 11 through the air duct 19 and blow it evenly towards the filter bag body 4 through the blower head 12. This achieves cooling of the filter bag body 4 during air filtration, thereby avoiding the filter bag body 4 from spontaneous combustion due to excessive temperature during use and improving the safety of the bag filter during use.

[0049] Meanwhile, an anti-static wire 15 is provided at the bottom of the mounting plate 2 and on the outside of the filter bag body 4, and an anti-static grounding wire 16 is provided extending outward from the anti-static wire 15.

[0050] In this way, during the airflow process, the static electricity generated is adsorbed by the anti-static wire 15 and conducted outward by the anti-static grounding wire 16, thereby eliminating static electricity and preventing the filter bag body 4 from burning due to sparks generated by static electricity.

[0051] In this invention, when installing the filter bag body 4, the cage frame 5 is placed inside the filter bag body 4, and the cage frame 5 carries the filter bag body 4 together into the mounting groove 3 on the mounting plate 2, so that the fixing ring 6 on the filter bag body 4 is located above the mounting plate 2, and the clamping ring at the top of the cage frame 5 is located on the fixing ring 6. At the same time, the limiting post 9 at the bottom of the clamping plate 8 extends into the limiting groove 17 to achieve the installation limitation of the fixing ring 6. Then, the clamping plate 8 is locked and fixed on the mounting plate 2 by the locking structure 10, thereby achieving stable installation of the filter bag body 4 on the mounting plate 2. In this way, the filter bag body 4 can be prevented from accidentally falling off during use.

[0052] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0053] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, their electrical connections and specific circuit structures will not be elaborated here.

Claims

1. A bag filter dust collector with a bag fixing mechanism, comprising a housing (1), wherein a mounting plate (2) is provided inside the housing (1), a mounting groove (3) is provided on the mounting plate (2), a filter bag body (4) is inserted into the mounting groove (3), and a cage frame (5) is provided inside the filter bag body (4), characterized in that: The top of the filter bag body (4) is provided with a fixing ring (6), and the fixing ring (6) has a limiting hole (7). The top of the cage frame (5) is provided with a pressing plate (8), and the bottom of the pressing plate (8) is provided with a limiting post (9) in conjunction with the limiting hole (7). A locking structure (10) is provided between the pressing plate (8) and the mounting plate (2). Below the mounting plate (2) and on the outside of the filter bag body (4), multiple sets of air blowing pipes (11) are vertically arranged. The air inlet end of the air blowing pipe (11) is connected to a cold air supply structure, and the air blowing pipe (11) is provided with a blower head (12) facing the filter bag body (4). An air inlet pipe (13) is provided on the side wall of the box (1) and below the mounting plate (2), and an air outlet pipe (14) is provided on the top of the box (1).

2. A baghouse according to claim 1, wherein: An antistatic wire (15) is provided at the bottom end of the mounting plate (2) and on the outside of the filter bag body (4), and an antistatic grounding wire (16) is provided extending outward from the antistatic wire (15).

3. A baghouse according to claim 1, wherein: the baghouse further comprises a bag retainer mechanism. The mounting plate (2) is provided with a limiting groove (17) for the limiting post (9), and the limiting post (9) and the limiting groove (17) are engaged with each other.

4. A baghouse according to any one of claims 1-3, characterized in that: The cold air supply structure includes a cold air blower (18), and an air supply pipe (19) is provided between the output end of the cold air blower (18) and the air blowing pipe (11).

5. A baghouse according to claim 4, wherein: Each group of multiple blow pipes (11) is provided with interconnected connecting ring pipes (20).

6. A baghouse according to claim 3, wherein: A sealing gasket (21) is provided between the fixing ring (6) and the mounting plate (2).

7. A baghouse according to claim 1 wherein: 5 The bottom of the box (1) is provided with a dust collection hopper (22), and the bottom of the dust collection hopper (22) is provided with a dust discharge structure.

8. A baghouse according to claim 7, wherein: The dust removal structure includes a dust removal pipe (23) installed at the bottom of the dust collection hopper (22), and a valve (24) is installed on the dust removal pipe (23).

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