Novel sealing structure of bag type dust collector

Abstract

The utility model relates to a novel sealing structure of a bag type dust collector, which belongs to the technical field of bag type dust collectors and comprises a dust collection chamber, a sealing door is hinged to the outer surface of the dust collection chamber through a door hinge, a triangular support is fixed on the lower surface of the dust collection chamber, and ash hoppers are communicated with the left end and the right end of the lower surface of the dust collection chamber. The left side of the ash bucket at the left end communicates with an air inlet pipe, a sealing mechanism for conveniently sealing the air inlet pipe is arranged at the bottom of the left side of the dust removal chamber, and a fixing mechanism for improving the sealing performance in the dust removal chamber is arranged on the back face of the sealing door. According to the novel sealing structure of the bag type dust collector, the air inlet pipe and the inner cavity of the dust collection chamber can be sealed through the sealing mechanism and the fixing mechanism when the dust collector is not used, so that air can be prevented from entering, a filter bag is prevented from being oxidized, the service life of the filter bag is protected, and the required cost is reduced by adopting a spring mode; the requirements of different customers are met, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of bag filter technology, specifically a novel sealing structure for a bag filter. Background Technology

[0002] A baghouse dust collector is a dry dust filtration device suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. The inlet damper of the dust collector controls the entry of the air that needs to be dusted. The sealing effect of the inlet damper will affect the oxidation effect of the filter bags, and thus affect the normal operation of the entire dust collector.

[0003] A search revealed Chinese Patent Publication No. CN212309118U, which discloses a baghouse dust collector with a sealable damper, belonging to the technical field of baghouse dust collectors. The dust collector includes a dust collector body and a base. An outlet pipe is connected to one side wall of the dust collector body, and an inlet smoke box is installed on the other side wall. One end of the inlet smoke box is connected to an inlet pipe. A sealing box is fixed to the upper surface of the base by a support block. One end of the inlet pipe extends through the side wall of the sealing box into the sealing box. A fixing plate is installed on the other side wall of the sealing box by a fixing rod, and an inlet pipe is connected to the fixing plate. The second air inlet pipe has one end that penetrates the side wall of the sealed box and extends into the sealed box. A spring is fitted onto the second air inlet pipe. A motor is installed on one side of the upper surface of the base, and the output shaft of the motor is connected to a lead screw. This utility model can seal the air inlet damper of a bag filter, preventing air from entering the dust collector and oxidizing the filter bags, thus extending the service life of the equipment. However, the utility model uses a motor lead screw drive to adjust the height of the first and second sealing blocks, which increases the required production cost and thus cannot meet the needs of different customers, reducing market competitiveness. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel sealing structure for bag filters, which has advantages such as low production costs. It solves the problem that using a motor screw drive to adjust the height of sealing block one and sealing block two increases the required production costs, thus failing to meet the needs of different customers and reducing market competitiveness.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel sealing structure for a bag filter, comprising a dust collection chamber, a sealing door hinged to the outer surface of the dust collection chamber via a door hinge, a triangular bracket fixed to the lower surface of the dust collection chamber, ash hoppers connected to both the left and right ends of the lower surface of the dust collection chamber, an air inlet pipe connected to the left side of the ash hopper at the left end, a sealing mechanism for facilitating the sealing of the air inlet pipe at the bottom of the left side of the dust collection chamber, and a fixing mechanism for improving the sealing performance of the dust collection chamber on the back of the sealing door;

[0006] The sealing mechanism includes a first rotating slot located at the bottom left side of the dust removal chamber. A drive plate is provided at the bottom left side of the dust removal chamber. A second rotating slot is provided at the top right side of the drive plate, directly to the left of the first rotating slot. Rotating blocks are rotatably installed in the inner cavities of both the first and second rotating slots. Fixed plates are fixed on opposite sides of the two rotating blocks. Telescopic rods are fixed on opposite sides of the two fixed plates. A return spring is movably sleeved on the outer surface of the telescopic rod. An outer sealing ring is fixed at the bottom right side of the drive plate, and an inner sealing ring is fixed at the bottom right side of the drive plate, within the inner cavity of the outer sealing ring.

[0007] Furthermore, the size of the sealing door is larger than the size of the dust collector chamber, a control valve is fixed on the lower surface of the ash hopper, and a feed pipe is connected to the lower surface of the control valve.

[0008] Furthermore, the cross-sectional shape of the first rotating groove, the second rotating groove, and the rotating block are all inverted T-shaped, and the length and width of the fixing plate are greater than the inner diameter of the first rotating groove and the second rotating groove.

[0009] Furthermore, the two ends of the return spring are fixedly connected to the opposite sides of the two fixed plates, and telescopic sleeves are fixed at both the upper and lower ends between the opposite sides of the two fixed plates.

[0010] Furthermore, the inner diameter of the outer sealing ring is adapted to the outer diameter of the air intake pipe, the outer diameter of the inner sealing ring is adapted to the inner diameter of the air intake pipe, and a handle is fixed on the left side of the drive plate.

[0011] Furthermore, the fixing mechanism includes a sealing plate fixed to the back of the sealing door, positioning blocks fixed on the upper and lower sides of the right end of the sealing door, positioning grooves opened on the upper and lower sides of the right end of the front of the dust removal chamber, an L-shaped card block fixed on the front of the positioning block, and a series of pull buckles fixed on the upper and lower sides of the right end of the front of the dust removal chamber.

[0012] Furthermore, the dimensions of the sealing plate are adapted to the dimensions of the dust removal chamber, and the dimensions of the positioning groove are adapted to the dimensions of the positioning block.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This bag filter features a novel sealing structure that, through its sealing and fixing mechanisms, seals the inlet pipe and the inner cavity of the dust collection chamber when the filter is not in use. This prevents air from entering, avoids filter bag oxidation, and extends the filter bag's lifespan. The spring-loaded design reduces costs, meets the needs of different customers, and improves practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sealing mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1 Dust removal chamber, 2 Sealed door, 3 Triangular bracket, 4 Ash hopper, 5 Air inlet pipe, 6 Sealing mechanism, 601 Rotating slot 1, 602 Drive plate, 603 Rotating slot 2, 604 Rotating block, 605 Fixing plate, 606 Telescopic rod, 607 Return spring, 608 Outer sealing ring, 609 Inner sealing ring, 7 Fixing mechanism, 701 Sealing plate, 702 Positioning block, 703 Positioning groove, 704 L-shaped locking block, 705 Linked pull buckle. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 This embodiment of a novel sealing structure for a bag filter includes a dust collection chamber 1. A sealing door 2 is hinged to the outer surface of the dust collection chamber 1 via a door hinge. A triangular bracket 3 is fixed to the lower surface of the dust collection chamber 1. Dust hoppers 4 are connected to both the left and right ends of the lower surface of the dust collection chamber 1. An air inlet pipe 5 is connected to the left side of the left dust hopper 4. A sealing mechanism 6 is provided at the bottom of the left side of the dust collection chamber 1 to facilitate sealing of the air inlet pipe 5. A fixing mechanism 7 is provided on the back of the sealing door 2 to improve the sealing performance of the dust collection chamber 1.

[0022] Among them, the size of the sealing door 2 is larger than the size of the inner cavity of the dust removal chamber 1, and a control valve is fixed on the lower surface of the ash hopper 4. The lower surface of the control valve is connected to the discharge pipe.

[0023] It is understandable that when the dust-laden gas enters the ash hopper 4 through the lower inlet pipe 5 of the dust collector, coarse dust particles will fall into the ash hopper 4 due to the reduction in gas velocity, while the remaining fine dust particles will enter the dust collection chamber 1 with the gas. Due to the inertia, diffusion, blocking, hooking, and electrostatic effects of the filter bag fibers and fabric in the dust collection chamber 1, the dust is trapped outside the filter bag, and the purified gas escapes from the bag and is discharged through the exhaust pipe.

[0024] Please see Figure 2 To seal the intake pipe 5, the sealing mechanism 6 in this embodiment includes a first rotating groove 601 located at the bottom left side of the dust removal chamber 1. A drive plate 602 is provided at the bottom left side of the dust removal chamber 1. A second rotating groove 603 is provided at the top right side of the drive plate 602 and directly to the left of the first rotating groove 601. Rotating blocks 604 are rotatably mounted in the inner cavities of both the first rotating groove 601 and the second rotating groove 603. Fixing plates 605 are fixed on opposite sides of the two rotating blocks 604. Telescopic rods 60 are fixed on opposite sides of the two fixing plates 605. 6. A return spring 607 is movably sleeved on the outer surface of the telescopic rod 606. It moves away from the dust removal chamber 1, thereby driving the drive plate 602 to move. The movement of the drive plate 602 can drive the left end fixing plate 605 to move through the second rotating groove 603 and the rotating block 604. At this time, the movement of the left end fixing plate 605 can drive the telescopic rod 606 and the return spring 607 to stretch. An outer sealing ring 608 is fixed at the bottom right side of the drive plate 602, and an inner sealing ring 609 is fixed at the bottom right side of the drive plate 602 and inside the cavity of the outer sealing ring 608.

[0025] After moving a certain distance, the handle can be rotated, causing the drive plate 602 to rotate. At this time, the outer sealing ring 608 and the inner sealing ring 609 are located on the left side of the air intake pipe 5. Then, the limit on the handle is released. At this time, the return spring 607 is not restricted and will rebound, causing the telescopic rod 606 and the telescopic sleeve rod to shorten. This causes the left end fixing plate 605 and the left end rotating block 604 to drive the drive plate 602 to move towards the side closer to the dust removal chamber 1. Thus, the outer sealing ring 608 and the inner sealing ring 609 are respectively fitted onto the outer surface and inner side of the air intake pipe 5, thereby achieving a seal.

[0026] Among them, the cross-sectional shape of the first rotating groove 601, the second rotating groove 603, and the rotating block 604 are all inverted T-shaped, and the length and width of the fixing plate 605 are greater than the inner diameter of the first rotating groove 601 and the second rotating groove 603.

[0027] In addition, both the telescopic rod 606 and the telescopic sleeve rod consist of a sleeve and a moving rod. One end of the moving rod passes through and extends into the interior of the sleeve. A limiting block located inside the sleeve is fixedly connected to the outside of the moving rod. A through hole adapted to the moving rod is opened on one side of the sleeve. By setting the limiting block, the moving rod is prevented from detaching from the sleeve during movement.

[0028] In this embodiment, the two ends of the return spring 607 are fixedly connected to the opposite sides of the two fixed plates 605 respectively. The upper and lower ends of the two fixed plates 605 are fixed with telescopic sleeves. The telescopic sleeves are used to connect the two fixed plates 605. The inner diameter of the outer sealing ring 608 is adapted to the outer diameter of the air intake pipe 5. The outer diameter of the inner sealing ring 609 is adapted to the inner diameter of the air intake pipe 5. A handle is fixed on the left side of the drive plate 602.

[0029] It should be noted that sealing the air inlet pipe 5 and the inner cavity of the dust removal chamber 1 prevents air from entering, prevents filter bag oxidation, protects the service life of the filter bag, and reduces the required cost by using a spring mechanism, meeting the needs of different customers and improving practicality.

[0030] Please see Figures 3 to 4 In order to seal the dust removal chamber 1, the fixing mechanism 7 in this embodiment includes a sealing plate 701 fixed to the back of the sealing door 2. The sealing plate 701 can improve the sealing performance of the dust removal chamber 1. Positioning blocks 702 are fixed on the upper and lower sides of the right end of the sealing door 2. Positioning grooves 703 are opened on the upper and lower sides of the right end of the front of the dust removal chamber 1. An L-shaped card block 704 is fixed on the front of the positioning block 702. A series of pull buckles 705 are fixed on the upper and lower sides of the right end of the front of the dust removal chamber 1. The series of pull buckles 705 is an existing structure and will not be described in detail here.

[0031] The dimensions of the sealing plate 701 are adapted to the dimensions of the inner cavity of the dust removal chamber 1, and the dimensions of the inner cavity of the positioning groove 703 are adapted to the dimensions of the positioning block 702.

[0032] Understandably, when the sealing door 2 is attached to the outer surface of the dust removal chamber 1, the positioning block 702 enters the inner cavity of the positioning groove 703. Then, the interlocking buckle 705 is pushed forward to put one end of it onto the L-shaped latch 704. Then, the interlocking buckle 705 is moved to the side away from the L-shaped latch 704 to stably fix the sealing door 2 to the dust removal chamber 1.

[0033] The working principle of the above embodiments is as follows:

[0034] (1) When the dust-laden gas enters the ash hopper 4 through the lower inlet pipe 5 of the dust collector, the coarse dust particles will fall into the ash hopper 4 due to the decrease in gas velocity, while the remaining fine dust particles will enter the dust collection chamber 1 with the gas. Due to the inertia, diffusion, blocking, hooking, and electrostatic effects of the filter bag fibers and fabric in the dust collection chamber 1, the dust is trapped outside the filter bag, and the purified gas escapes from the bag and is discharged through the exhaust pipe. In order to prevent the filter bag from being oxidized when the dust collector is not in use, the outer sealing ring 608 and the inner sealing ring 609 are located on the upper side of the inlet pipe 5. The user puts his hand into the handle and holds it, and then moves it to the side away from the dust collection chamber 1, thereby driving the drive plate 602 to move. The movement of the drive plate 602 can be achieved through the second rotating groove 603 and the rotating... The moving block 604 drives the left end fixed plate 605 to move. At this time, the movement of the left end fixed plate 605 can drive the telescopic rod 606 and the return spring 607 to stretch. The telescopic sleeve rod extends and moves a certain distance. Then the handle can be turned, which causes the drive plate 602 to rotate. At this time, the outer sealing ring 608 and the inner sealing ring 609 are located on the left side of the air intake pipe 5. Then the limit on the handle is released. At this time, the return spring 607 is not restricted and will rebound and drive the telescopic rod 606 and the telescopic sleeve rod to shorten. This causes the left end fixed plate 605 and the left end rotating block 604 to drive the drive plate 602 to move closer to the dust removal chamber 1. Thus, the outer sealing ring 608 and the inner sealing ring 609 are respectively fitted on the outer surface and the inner side of the air intake pipe 5, thereby achieving a seal.

[0035] (2) The sealing plate 701 can improve the sealing performance of the dust removal chamber 1. After the filter bag is replaced, the sealing door 2 is attached to the outer surface of the dust removal chamber 1. At this time, the positioning block 702 enters the inner cavity of the positioning groove 703. Then, the interlocking buckle 705 is used to push forward and put one end of it on the L-shaped card block 704. Then, the interlocking buckle 705 is moved to the side away from the L-shaped card block 704, so that the sealing door 2 can be stably fixed to the dust removal chamber 1.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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.

Claims

1. A novel sealing structure for a bag filter, comprising a dust collection chamber (1), characterized in that: The outer surface of the dust removal chamber (1) is hinged to a sealing door (2) by a door hinge. A triangular bracket (3) is fixed on the lower surface of the dust removal chamber (1). Both the left and right ends of the lower surface of the dust removal chamber (1) are connected to a ash hopper (4). An air inlet pipe (5) is connected to the left side of the ash hopper (4). A sealing mechanism (6) for sealing the air inlet pipe (5) is provided at the bottom left side of the dust removal chamber (1). A fixing mechanism (7) for improving the sealing performance of the dust removal chamber (1) is provided on the back of the sealing door (2). The sealing mechanism (6) includes a first rotating groove (601) opened at the bottom left side of the dust removal chamber (1). A drive plate (602) is provided at the bottom left side of the dust removal chamber (1). A second rotating groove (603) is opened at the top right side of the drive plate (602) and directly to the left of the first rotating groove (601). Rotating blocks (604) are rotatably installed in the inner cavities of the first rotating groove (601) and the second rotating groove (603). Fixing plates (605) are fixed on opposite sides of the two rotating blocks (604). Telescopic rods (606) are fixed on opposite sides of the two fixing plates (605). A return spring (607) is movably sleeved on the outer surface of the telescopic rod (606). An outer sealing ring (608) is fixed at the bottom right side of the drive plate (602). An inner sealing ring (609) is fixed at the bottom right side of the drive plate (602) and in the inner cavity of the outer sealing ring (608).

2. The novel sealing structure of a bag filter according to claim 1, characterized in that: The size of the sealing door (2) is larger than the size of the inner cavity of the dust removal chamber (1). A control valve is fixed on the lower surface of the ash hopper (4), and a feed pipe is connected to the lower surface of the control valve.

3. The novel sealing structure of a bag filter according to claim 1, characterized in that: The cross-sectional shape of the first rotating groove (601), the second rotating groove (603), and the rotating block (604) is an inverted T-shape. The length and width of the fixing plate (605) are greater than the inner diameter of the first rotating groove (601) and the second rotating groove (603).

4. The novel sealing structure of a bag filter according to claim 1, characterized in that: The two ends of the return spring (607) are fixedly connected to the opposite sides of the two fixed plates (605), and telescopic sleeves are fixed at the upper and lower ends of the opposite sides of the two fixed plates (605).

5. The novel sealing structure of a bag filter according to claim 1, characterized in that: The inner diameter of the outer sealing ring (608) is adapted to the outer diameter of the air intake pipe (5), the outer diameter of the inner sealing ring (609) is adapted to the inner diameter of the air intake pipe (5), and a handle is fixed on the left side of the drive plate (602).

6. The novel sealing structure of a bag filter according to claim 1, characterized in that: The fixing mechanism (7) includes a sealing plate (701) fixed to the back of the sealing door (2), and positioning blocks (702) fixed on both the upper and lower sides of the right end of the sealing door (2). Positioning grooves (703) are provided on both the upper and lower sides of the right end of the front of the dust removal chamber (1). An L-shaped card block (704) is fixed on the front of the positioning block (702). A series of pull buckles (705) are fixed on both the upper and lower sides of the right end of the front of the dust removal chamber (1).

7. A novel sealing structure for a bag filter according to claim 6, characterized in that: The size of the sealing plate (701) is adapted to the size of the inner cavity of the dust removal chamber (1), and the size of the inner cavity of the positioning groove (703) is adapted to the size of the positioning block (702).

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