Dust removal filter bag with multi-layer structure

Abstract

The utility model relates to the technical field of bag type dust collectors, and discloses a dust removal filter bag with a multilayer structure, which comprises a filter bag I and a clamping seat, a check ring I is arranged at the top end of the filter bag I, a filter bag II is sleeved on the surface of the filter bag I, a filter hole of the filter bag II is larger than that of the filter bag I, a check ring II is arranged at the top end of the filter bag II, and the check ring II is sleeved on the surface of the filter bag II. The second check ring and the first check ring are both located in the clamping base, a gasket is arranged between the second check ring and the first check ring, and a first supporting assembly for supporting the first filter bag and the second filter bag is arranged at the bottom end of the gasket. The first filter bag and the second filter bag can be limited through the first check ring and the second check ring respectively, the first check ring, the second check ring and the gasket can be placed at the same time through the clamping base, the first filter bag, the second filter bag, the first supporting assembly and the second supporting assembly can be fixed at the same time by fixing the pressing ring to the clamping base, single-person operation is facilitated in the mounting and dismounting process, and the operation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of bag filter technology, specifically a multi-layer dust collector filter bag. Background Technology

[0002] A bag filter 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. When dust-laden gas enters the bag filter, larger and heavier dust particles settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is trapped, thus purifying the gas.

[0003] The application number "202120015690.3" discloses "a multi-layer structure ultrafine fiber filter bag," which "includes a first filter bag, a first mounting frame above the first filter bag, a second filter bag inside the first filter bag, a second mounting frame above the second filter bag and located inside the first mounting frame, a placement groove on the inner side of the top surface of the first mounting frame, and several limiting devices on the outer side of the placement groove and located within the first mounting frame, the limiting devices including a limiting post and a first spring, and the first mounting frame and the second mounting frame connected below the placement groove by a fixing device." This multi-layer structure ultrafine fiber filter bag belongs to the field of dust collector filter bag technology. The limiting devices can restrict the second mounting frame, and the fixing devices facilitate disassembly and installation, making it easy to replace and clean regularly, thus improving its convenience and practicality.

[0004] However, the above method still has the following drawbacks: the second mounting bracket can be connected to the first mounting bracket by the limiting device, which can realize the installation of multi-layer filter bags. However, multiple springs are needed to support multiple limiting rods respectively. It is not convenient to compress multiple springs at the same time during installation and disassembly, making the operation difficult and not convenient for single-person operation. In addition, there is no support between the first filter bag and the second filter bag, resulting in poor stability. Under the action of airflow, the first filter bag is prone to sticking to the second filter bag, which will reduce the ventilation volume and reduce the dust removal efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-layer dust collector filter bag, which has the advantages of easy installation and disassembly by a single person, reduced operation difficulty, and good stability, thus solving the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a multi-layer dust collector filter bag, including a filter bag one and a mounting base. The top of the filter bag one is provided with a retaining ring one. A filter bag two is fitted on the surface of the filter bag one. The filter holes of the filter bag two are larger than those of the filter bag one. The top of the filter bag two is provided with a retaining ring two. Both the retaining ring two and the retaining ring one are located inside the mounting base. A gasket is provided between the retaining ring two and the retaining ring one. The bottom end of the gasket is provided with a support component one for supporting the filter bag one and the filter bag two. The top of the mounting base is fixedly connected to a pressure ring by screws. The middle part of the pressure ring is provided with a support component two for supporting the interior of the filter bag one.

[0007] As a preferred technical solution of this utility model, the support component one includes a support bar one, the top end of the support bar one is fixedly connected to the bottom end of the washer, a support bar two is provided on one side of the support bar one, and a plurality of springs are provided between the support bar one and the support bar two.

[0008] As a preferred embodiment of this utility model, one end of the spring is fitted with a locking post one, one end of the locking post one is fixedly connected to one side of the support bar one, and the other end of the spring is fitted with a locking post two, one end of the locking post two is fixedly connected to one side of the support bar two.

[0009] As a preferred embodiment of the present invention, the support bar one is provided with a support one at the top and bottom, and a connecting rod one is hinged to the support one. The support bar two is provided with a support two at the top and bottom, and a connecting rod two is hinged to the support two. One end of the connecting rod one is hinged to one end of the connecting rod two.

[0010] As a preferred technical solution of this utility model, the top of the card holder is provided with a threaded hole, the screw is threadedly connected to the threaded hole, and the surface of the pressure ring is provided with a countersunk hole, the screw is inserted into the countersunk hole.

[0011] As a preferred technical solution of this utility model, the top of the card holder is provided with a plurality of plate grooves, and the bottom of the pressure ring is fixedly provided with a plurality of card plates, which are engaged and connected with the inside of the plate grooves.

[0012] As a preferred technical solution of this utility model, the second support component includes a first steel ring and a second steel ring. The first steel ring is welded with a plurality of uprights, and the second steel ring is welded to the bottom end of the uprights. Both the uprights and the second steel ring are located inside the first filter bag.

[0013] As a preferred embodiment of this utility model, a plurality of crossbars are welded to the surface of the steel ring, and one end of each crossbar is welded to the inner wall of the pressure ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The retaining rings 1 and 2 can limit the position of filter bag 1 and filter bag 2 respectively. The retaining ring 1, retaining ring 2 and gasket can be installed at the same time through the retaining seat. By fixing the pressure ring on the retaining seat, filter bag 1, filter bag 2, support component 1 and support component 2 can be fixed at the same time. The installation and disassembly process is convenient for single-person operation and reduces the difficulty of operation.

[0016] 2. The support component can support filter bag one and filter bag two, preventing filter bag one from sticking to filter bag two, ensuring ventilation, and improving dust removal efficiency. Under the action of airflow, the support component one can shake and tap filter bag one and filter bag two, which can clean the filter bags. The support component two can support the inside of filter bag one, preventing filter bag one from collapsing, and ensuring the fit between filter bag one and support component one. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the support component one of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second support component of this utility model;

[0022] Figure 6 This is a schematic diagram of the card holder of this utility model.

[0023] In the diagram: 1. Filter bag one; 2. Retaining ring one; 3. Filter bag two; 4. Retaining ring two; 5. Card holder; 6. Washer; 7. Support assembly one; 701. Support bar one; 702. Spring; 703. Support bar two; 704. Card post one; 705. Card post two; 706. Support one; 707. Connecting rod one; 708. Support two; 709. Connecting rod two; 8. Pressure ring; 9. Support assembly two; 901. Steel ring one; 902. Steel ring two; 903. Upright pole; 904. Horizontal bar; 10. Screw; 11. Countersunk hole; 12. Threaded hole; 13. Card plate; 14. Plate groove. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 A multi-layer dust collector filter bag includes a filter bag 1 and a mounting base 5. A retaining ring 2 is fixedly mounted on the top of the filter bag 1. A filter bag 3 is fitted over the surface of the filter bag 1, with the filter pores of the filter bag 3 being larger than those of the filter bag 1. A retaining ring 4 is fixedly mounted on the top of the filter bag 3. Both retaining ring 4 and retaining ring 2 are located inside the mounting base 5. A gasket 6 is provided between retaining ring 4 and retaining ring 2. The inner diameters of retaining ring 2 and retaining ring 4 are equal to the inner diameter of gasket 6. Retaining rings 2 and 4 can be respectively... The filter bag 1 and filter bag 2 are limited. The retaining ring 2, retaining ring 4 and washer 6 can be installed at the same time through the card holder 5. The bottom end of the washer 6 is provided with a support component 7 to support the filter bag 1 and filter bag 2. The top end of the card holder 5 is fixedly connected with a pressure ring 8 by a screw 10. The middle part of the pressure ring 8 is provided with a support component 2 9 to support the inside of the filter bag 1. By fixing the pressure ring 8 on the card holder 5, the filter bag 1, filter bag 2, support component 7 and support component 2 9 can be fixed at the same time.

[0026] In this embodiment, preferably, the support component 7 includes a support bar 701, the top end of which is fixedly connected to the bottom end of the washer 6. A support bar 703 is provided on one side of the support bar 701. A plurality of springs 702 are provided between the support bar 701 and the support bar 703. One end of each spring 702 is engaged with a locking post 704, one end of which is fixedly connected to one side of the support bar 701. The other end of each spring 702 is engaged with a locking post 705, one end of which is fixedly connected to one side of the support bar 703. The locking posts 704 and 705 limit the movement of both ends of the springs 702, allowing the springs 702 to support the space between the support bar 701 and the support bar 703. The support bar 701 supports the filter bag 1 and the filter bag 2 3. Under the action of airflow, the spring 702 can vibrate, which can drive the support bar 701 and the support bar 2 703 to vibrate and beat the filter bag 1 and the filter bag 2 3, which can clean the filter bag and reduce dust adhesion. The support bar 701 is provided with a support 706 at the top and bottom. The support bar 706 is hinged to the connecting rod 707. The support bar 2 703 is provided with a support 708 at the top and bottom. The support 708 is hinged to the connecting rod 2 709. One end of the connecting rod 707 is hinged to one end of the connecting rod 2 709. The support bar 701 and the support bar 2 703 can be movably connected through the connecting rod 707 and the connecting rod 2 709.

[0027] In this embodiment, preferably, the support component 2 9 includes a steel ring 1 901 and a steel ring 2 902. The steel ring 1 901 is welded with a plurality of uprights 903. The steel ring 2 902 is welded to the bottom end of the uprights 903. The uprights 903 and the steel ring 2 902 are both located inside the filter bag 1. The surface of the steel ring 1 901 is welded with a plurality of crossbars 904. One end of the crossbars 904 is welded to the inner wall of the pressure ring 8. The uprights 903 can support the interior of the filter bag 1 and prevent the filter bag 1 from collapsing. The pressure ring 8 can support the uprights 903 through the crossbars 904. The steel ring 1 901 and the steel ring 2 902 can reinforce the two ends of the uprights 903.

[0028] In this embodiment, preferably, the top of the card holder 5 is provided with a threaded hole 12, and the screw 10 is threadedly connected to the threaded hole 12. The surface of the pressure ring 8 is provided with a countersunk hole 11, and the screw 10 is inserted into the countersunk hole 11. The screw 10 can be inserted through the countersunk hole 11 and the screw 10 can be fixed through the threaded hole 12. The top of the card holder 5 is provided with a plurality of plate grooves 14, and the bottom of the pressure ring 8 is fixed with a plurality of retaining plates 13. The retaining plates 13 are engaged with the inside of the plate grooves 14. The retaining plates 13 and the plate grooves 14 can increase the stability between the pressure ring 8 and the card holder 5 and can ensure the installation accuracy of the screw 10.

[0029] In use, first, pass the filter bag 2 3 through the bracket 5, put the retaining ring 1 2 into the bracket 5, then put the support bar 1 701 of the support component 1 7 into the inside of the filter bag 2 3, and then put the filter bag 1 1 into the inside of the filter bag 2 3, so that the filter bag 1 1 is located between several support bars 2 703. After the filter bag 1 1 is placed, put the support component 2 9 into the filter bag 1 1 to support its interior. When the filter bag 1 1 is open, it can compress the spring 702. The spring 702 can support the support bar 1 701 and the support bar 2 703, and can maintain the fit between the support bar 1 701 and the support bar 2 703 and the filter bag 2 3 and the filter bag 1 1, so as to prevent the filter bag 1 1 and the filter bag 2 3 from collapsing. Finally, fix the pressure ring 8 on the bracket 5 with the screw 10. The pressure ring 8, together with the bracket 5, can fix the retaining ring 1 2, the washer 6 and the retaining ring 2 4, thus completing the installation of the filter bag 1 1 and the filter bag 2 3.

[0030] During the dust removal process, since the filter holes of filter bag 2 3 are larger than those of filter bag 1, filter bag 2 3 and filter bag 1 can remove dust in sequence. Under the action of airflow, spring 702 can shake, which can drive support bar 1 701 and support bar 2 703 to vibrate, which can beat filter bag 1 and filter bag 2 3, thus cleaning the filter bags and reducing dust adhesion.

[0031] 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 multi-layer dust collector filter bag, comprising a filter bag (1) and a mounting base (5), characterized in that: The filter bag one (1) has a retaining ring one (2) at its top end. The filter bag one (1) is fitted with a filter bag two (3). The filter holes of the filter bag two (3) are larger than those of the filter bag one (1). The filter bag two (3) has a retaining ring two (4) at its top end. The retaining ring two (4) and the retaining ring one (2) are both located inside the card seat (5). A washer (6) is provided between the retaining ring two (4) and the retaining ring one (2). The bottom end of the washer (6) is provided with a support component one (7) for supporting the filter bag one (1) and the filter bag two (3). The top end of the card seat (5) is fixedly connected with a pressure ring (8) by a screw (10). The middle part of the pressure ring (8) is provided with a support component two (9) for supporting the inside of the filter bag one (1).

2. The multi-layer dust collector filter bag according to claim 1, characterized in that: The support component 1 (7) includes a support bar 1 (701), the top end of the support bar 1 (701) is fixedly connected to the bottom end of the washer (6), a support bar 2 (703) is provided on one side of the support bar 1 (701), and a plurality of springs (702) are provided between the support bar 1 (701) and the support bar 2 (703).

3. The multi-layer dust collector filter bag according to claim 2, characterized in that: One end of the spring (702) is engaged with a locking post one (704), one end of the locking post one (704) is fixedly connected to one side of the support bar one (701), and the other end of the spring (702) is engaged with a locking post two (705), one end of the locking post two (705) is fixedly connected to one side of the support bar two (703).

4. The multi-layer dust collector filter bag according to claim 2, characterized in that: The support bar 1 (701) is provided with a support 1 (706) at the top and bottom, and the support 1 (706) is hinged to a connecting rod 1 (707). The support bar 2 (703) is provided with a support 2 (708) at the top and bottom, and the support 2 (708) is hinged to a connecting rod 2 (709). One end of the connecting rod 1 (707) is hinged to one end of the connecting rod 2 (709).

5. A multi-layer dust collector filter bag according to claim 1, characterized in that: The top of the card holder (5) is provided with a threaded hole (12), and the screw (10) is threadedly connected to the threaded hole (12). The surface of the pressure ring (8) is provided with a countersunk hole (11), and the screw (10) is inserted into the countersunk hole (11).

6. The multi-layer dust collector filter bag according to claim 1, characterized in that: The top of the card holder (5) is provided with several plate grooves (14), and the bottom of the pressure ring (8) is fixed with several card plates (13). The card plates (13) are engaged with the inside of the plate grooves (14).

7. A multi-layer dust collector filter bag according to claim 1, characterized in that: The second support component (9) includes a first steel ring (901) and a second steel ring (902). The first steel ring (901) is welded with several uprights (903). The second steel ring (902) is welded to the bottom end of the uprights (903). The uprights (903) and the second steel ring (902) are both located inside the first filter bag (1).

8. A multi-layer dust collector filter bag according to claim 7, characterized in that: The surface of the steel ring (901) is welded with several crossbars (904), one end of which is welded to the inner wall of the pressure ring (8).

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