Dust removal filter bag with side leakage prevention

Abstract

The utility model discloses a dust removal filter bag of preventing side leakage relates to dust removal filter bag technical field, the utility model discloses a flower board is provided with mounting hole on, and the mounting hole is clamped with filter bag on, and the filter bag includes bag body and elastic clamp, and the bag body inside is provided with keel frame, the keel frame includes roof, bottom, vertical muscle, horizontal ring, central shaft, connecting muscle and support muscle, and the central shaft is located the center of keel frame, and its upper end is connected with roof through support muscle, and its lower end is connected with the center of bottom, the utility model discloses a center shaft is added and is with the vertical muscle of each layer horizontal ring height welding constitution triangle support system through the connecting muscle of multiple radiality inclined arrangement, and the stress is conducted to roof with cooperation support muscle, and the overall rigidity of keel frame, bending -resistant and anti -twist deformation ability have been enhanced significantly, effectively prevent filter bag and the clearance between frame because of negative pressure or dust removal impact, fundamentally put an end to dust side leakage, guarantee the stability and durability of filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of dust collector filter bag technology, specifically to a dust collector filter bag that prevents side leakage. 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 media, the dust is trapped, thus purifying the gas.

[0003] Traditional dust collector filter bags typically use a rectangular frame composed of vertical ribs and horizontal rings. This structure lacks overall rigidity and is prone to twisting and deformation under the repeated impact of negative pressure during system operation and pulse cleaning. This can lead to gaps between the filter bag and the frame, resulting in dust bypass leakage, which not only reduces filtration efficiency but also shortens the service life of the filter bag.

[0004] Therefore, a dust collector filter bag with anti-side leakage is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a leak-proof dust filter bag to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: A leak-proof dust collector filter bag includes a tube sheet with mounting holes for attaching filter bags. The filter bag comprises a bag body and elastic clamps. A frame is installed inside the bag body. The frame includes a top plate, a bottom plate, vertical ribs, horizontal rings, a central shaft, connecting ribs, and supporting ribs. The central shaft is located at the center of the frame, with its upper end connected to the top plate via the supporting ribs and its lower end connected to the center of the bottom plate. Multiple vertical ribs are evenly distributed circumferentially between the top and bottom plates. Multiple horizontal rings are evenly distributed vertically on the vertical ribs. The central shaft is connected to the vertical ribs at the height of the horizontal rings via connecting ribs. The connecting ribs are inclined and form a triangular support with the central shaft and vertical ribs.

[0007] Furthermore, the lower end of the central shaft is fixedly connected to the center of the base plate.

[0008] Furthermore, the number of supporting ribs is multiple, and they are evenly distributed along the circumference of the top plate.

[0009] Furthermore, the connecting ribs are provided at the height of the multiple horizontal rings and are connected to the vertical ribs at that height.

[0010] Furthermore, the top plate contacts the periphery of the mounting hole of the tube sheet, the elastic clamp clamps the open end of the bag body onto the tube sheet, and the top plate presses the elastic clamp tightly onto the tube sheet.

[0011] Furthermore, the vertical ribs and horizontal rings are all made of metal steel wire, and the top plate and the bottom plate are both circular steel plates.

[0012] The beneficial effects of this utility model are as follows: This invention adds a central axis and welds multiple radially inclined connecting ribs to the vertical ribs at the height of each horizontal ring to form a triangular support system. The supporting ribs transfer stress to the top plate, significantly enhancing the overall rigidity, bending resistance, and torsional deformation resistance of the keel frame. This effectively prevents gaps between the filter bag and the frame due to negative pressure or dust removal impact, fundamentally eliminating dust leakage and ensuring the stability and durability of the filtration effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the flower plate structure of this utility model; Figure 4 This is a schematic diagram of the keel frame structure of this utility model; Figure 5 This is a schematic diagram of the filter bag structure of this utility model.

[0014] Reference numerals: 1. Perforated plate; 101. Mounting hole; 2. Filter bag; 201. Bag body; 202. Elastic clamp; 3. Frame; 301. Top plate; 302. Bottom plate; 303. Vertical rib; 304. Horizontal ring; 305. Central shaft; 306. Connecting rib; 307. Supporting rib. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figure 1-5 As shown, a leak-proof dust collector filter bag includes a tube sheet 1 with mounting holes 101. The tube sheet 1 is a plate-like structure for mounting the dust collector filter bag and can be welded inside the dust collector filter (details omitted here). A filter bag 2 is snapped into the mounting holes 101. The filter bag 2 includes a bag body 201 and an elastic clamp 202. A frame 3 is installed inside the bag body 201. The frame 3 includes a top plate 301, a bottom plate 302, vertical ribs 303, horizontal rings 304, a central shaft 305, connecting ribs 306, and supporting ribs 307. The central shaft 305 is located at the center of the frame 3, and its upper end is connected to the top plate 301 via the supporting ribs 307, while its lower end is connected to the bottom plate 302. The central connection is achieved through multiple vertical ribs 303 evenly distributed circumferentially between the top plate 301 and the bottom plate 302; multiple horizontal rings 304 are evenly distributed vertically on the vertical ribs 303; the central shaft 305 is connected to the vertical ribs 303 at the height of the horizontal rings 304 via connecting ribs 306; the connecting ribs 306 are inclined and form a triangular support with the central shaft 305 and the vertical ribs 303. The triangular support system formed by the connecting ribs 306, the central shaft 305, and the vertical ribs 303 significantly improves the bending and torsional strength of the frame 3, avoids the parallelogram deformation that is easily caused by the rectangular frame formed by only the vertical ribs 303 and the horizontal rings 304, and ensures that the filter bag 2 is always evenly supported and maintains a stable filtration gap.

[0020] like Figure 4As shown, the lower end of the central shaft 305 is fixedly connected to the center of the base plate 302. Specifically, the lower end of the central shaft 305 is fixedly connected to the center of the base plate 302 by welding to ensure the connection is firm and airtight. The center of the base plate 302 can be punched upward to form a protruding sleeve or a nut sleeve can be welded on. The lower end of the central shaft 305 is machined with external threads and screwed into the sleeve and locked, or it can be directly inserted into the sleeve and fixed by pins or welding. This structure is convenient for transportation and on-site assembly.

[0021] like Figure 4 As shown, there are multiple support ribs 307, which are evenly distributed around the circumference of the top plate 301. Specifically, one end of the support rib 307 is welded to the surface of the top plate 301, and the other end is welded to the upper end of the central shaft 305. The support rib 307 not only serves as a connection, but also constitutes a support structure itself, suspending and positioning the central shaft 305 at the center of the top plate 301. This ensures the verticality of the central shaft 305 and evenly distributes the force from the central shaft 305 onto the top plate 301.

[0022] like Figure 4 As shown, connecting ribs 306 are provided at the height of the multi-layer horizontal rings 304 and connected to the vertical ribs 303 at the same height. Specifically, at the height of each layer of horizontal rings 304, multiple connecting ribs 306 are provided. These connecting ribs 306 are radially and symmetrically connected to the central axis 305 and all or key vertical ribs 303 of that layer with the central axis 305 as the center. This radial diagonal bracing structure can more effectively transmit the lateral pressure on the filter bag during filtration from the vertical ribs 303 and horizontal rings 304 to the central axis 305, and then to the top plate 301 through the support ribs 307. This greatly enhances the overall rigidity and deformation resistance of the frame 3 and prevents shaking under negative pressure or dust removal pressure. This is to achieve "side leakage prevention". The connection between the connecting ribs 306 and the vertical ribs 303 is preferably made by welding to ensure the strength of the joint. The welding point should be smooth and burr-free to prevent wear on the filter bag 2.

[0023] like Figure 2 As shown, the top plate 301 contacts the periphery of the mounting hole 101 of the tube sheet 1, and the elastic clamp 202 clamps the open end of the bag body 201 onto the tube sheet 1. The top plate 301 presses the elastic clamp 202 tightly onto the tube sheet 1. Specifically, the edge of the top plate 301 may be designed with a downward-turned edge or a raised ring, which can more accurately position and press the elastic clamp 202 to prevent it from shifting.

[0024] like Figure 4As shown, the vertical ribs 303 and horizontal rings 304 are all made of metal steel wire, and the top plate 301 and bottom plate 302 are both circular steel plates. Specifically, the surfaces of the top plate 301, bottom plate 302, vertical ribs 303, horizontal rings 304, central shaft 305, connecting ribs 306, and supporting ribs 307 should be smooth, without sharp corners or burrs, and should be treated with anti-corrosion. The entire keel frame 3 should be firmly welded, with high overall strength, and without false welds or missing welds. After welding, the entire frame should be straightened to ensure that its center 305 is vertical, each layer of horizontal rings 304 is horizontal, and the overall shape is regular.

[0025] In summary: When installing filter bag 2, first insert bag body 201 into mounting hole 101 of tube sheet 1, so that elastic clamp 202 is pressed between the flange of bag body 201 and the inner wall of mounting hole 101 to tighten it. Then, under its own weight and system negative pressure, the top plate 301 of the keel frame 3 presses down to tighten the elastic clamp 202 and adheres tightly to tube sheet 1 to form a seal. During filtration, the triangular support system composed of vertical ribs 303, horizontal rings 304, central shaft 305 and radially inclined connecting ribs 306 bears the lateral force and transmits the force to the top plate 301 through support ribs 307 to prevent deformation of keel frame 3 and side leakage of filter bag 2.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof dust collector filter bag, comprising a tube sheet (1), wherein the tube sheet (1) has mounting holes (101) and a filter bag (2) is snapped into the mounting holes (101), characterized in that: The filter bag (2) includes a bag body (201) and an elastic clamp (202). A frame (3) is provided inside the bag body (201). The frame (3) includes a top plate (301), a bottom plate (302), vertical ribs (303), horizontal rings (304), a central shaft (305), connecting ribs (306), and supporting ribs (307). The central shaft (305) is located at the center of the frame (3), and its upper end is connected to the top plate (301) through the supporting ribs (307), and its lower end is connected to the bottom plate (302). The center of the plate (302) is connected; multiple vertical ribs (303) are evenly distributed circumferentially between the top plate (301) and the bottom plate (302); multiple horizontal rings (304) are evenly distributed vertically on the vertical ribs (303); the central axis (305) is connected to the vertical ribs (303) at the height of the horizontal rings (304) through the connecting ribs (306); the connecting ribs (306) are inclined, and the connecting ribs (306), the central axis (305) and the vertical ribs (303) form a triangular support.

2. The leak-proof dust collector filter bag according to claim 1, characterized in that, The lower end of the central shaft (305) is fixedly connected to the center of the base plate (302).

3. The leak-proof dust collector filter bag according to claim 1, characterized in that, The number of the supporting ribs (307) is multiple, and they are evenly distributed along the circumference of the top plate (301).

4. A leak-proof dust collector filter bag according to claim 1, characterized in that, The connecting rib (306) is provided at the height of the multi-layer horizontal ring (304) and is connected to the vertical rib (303) at that height.

5. A leak-proof dust collector filter bag according to claim 1, characterized in that, The top plate (301) contacts the periphery of the mounting hole (101) of the flower plate (1), the elastic clamp (202) clamps the open end of the bag body (201) onto the flower plate (1), and the top plate (301) presses the elastic clamp (202) onto the flower plate (1).

6. A leak-proof dust collector filter bag according to claim 1, characterized in that, The vertical ribs (303) and horizontal rings (304) are both metal steel wires, and the top plate (301) and the bottom plate (302) are both circular steel plates.

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