Needled felt filter bag for dust removal equipment

Abstract

The utility model is applicable to the technical field of needled felt filter bags, and provides a needled felt filter bag for dust removal equipment, which comprises a mounting ring, a plurality of mounting holes are arranged on the surface of the mounting ring, an expansion support mechanism is arranged at the bottom of the mounting ring, and a filter bag body is arranged on the periphery of the expansion support mechanism. The expansion supporting mechanism is used for shaping the filter bag so as to avoid deformation of the filter bag in the use process, the expansion supporting mechanism comprises a plurality of fixing rods and a limiting ring, the plurality of fixing rods are distributed around the center of the mounting ring, and the tops of the plurality of fixing rods are fixedly connected with the mounting ring. According to the utility model, the expansion supporting mechanism is arranged, so that the inelastic filter bag does not need to be pulled from the bottom of the device and is sleeved on the outer side of the device, the bottom of the device can be contracted, and the filter bag is expanded and expanded after the filter bag is sleeved, so that the installation difficulty of the filter bag can be reduced, and the installation efficiency of the filter bag can be improved.

Description

Technical Field

[0001] This utility model relates to needle-punched felt filter bags, and more particularly to a needle-punched felt filter bag for dust removal equipment. Background Technology

[0002] Needle-punched felt filter bags (dust collector bags) are a key component in the operation of baghouse dust collectors. The fabric and design of needle-punched felt filter bags strive to achieve high-efficiency filtration, easy dust removal, and durability. Needle-punched felt filter bags have the advantages of high porosity, good air permeability, and high dust collection efficiency that are unique to ordinary felt filter cloths.

[0003] With prolonged use, filter bags will affect filtration efficiency and reduce processing efficiency, necessitating timely replacement. Because filter bags need to maintain a constant pore size, they are generally non-elastic structures. When replacing filter bags, they need to be fitted onto the outer periphery of a support structure, which then supports the filter bags. However, because filter bags lack elasticity, friction can make installation difficult and inefficient. Utility Model Content

[0004] This utility model provides a needle-punched felt filter bag for dust removal equipment, which aims to solve the problem mentioned in the background art that the filter bag lacks elasticity, thus making the installation of the filter bag difficult and inefficient due to friction.

[0005] This utility model is implemented as follows: a needle-punched felt filter bag for dust removal equipment includes an installation ring, the surface of which is provided with a plurality of installation holes, and an expansion support mechanism is provided at the bottom of the installation ring. The filter bag body is provided on the outer periphery of the expansion support mechanism. The expansion support mechanism is used to shape the filter bag, thereby preventing the filter bag from deforming during use.

[0006] The expansion support mechanism includes fixed rods and limiting rings. The number of fixed rods is set to multiple, and the multiple fixed rods are distributed around the center of the mounting ring. The top of the multiple fixed rods is fixedly connected to the mounting ring, and the bottom of the multiple fixed rods is movably connected to the expansion rods through universal balls. The outer periphery of the multiple expansion rods is fixedly connected to the positioning rings.

[0007] The surface of the limiting ring is provided with multiple sliding grooves, and the limiting ring is slidably connected to multiple fixed rods and expansion rods through the multiple sliding grooves respectively;

[0008] The expansion support mechanism is provided with a fixing mechanism on its outer periphery, which is used to fix the filter bag body to the mounting ring;

[0009] When installing the filter bag body, firstly, multiple expansion rods are deflected towards the center of the mounting ring around the universal ball joint, thereby simultaneously retracting the multiple expansion rods. Then, the retracted expansion rods are inserted into the filter bag body, and the opening of the filter bag body is fitted around the outer periphery of multiple fixing rods and fixed by the fixing mechanism. Then, the limiting ring between the multiple fixing rods is slid downwards, so that the limiting ring slides between the multiple expansion rods until the bottom of the limiting ring abuts against the positioning ring on the outer periphery of the multiple expansion rods. At this time, the limiting ring will cause the multiple expansion rods to unfold to support the filter bag body and limit the multiple expansion rods. In order to keep the pore size of the filter bag unchanged, it is generally made of non-elastic material. With the above structure, the non-elastic filter bag does not need to be pulled from the bottom of the device and fitted onto the outside of the device. Instead, the bottom of the device can be retracted and the filter bag expanded after it is fitted, thereby reducing the installation difficulty of the filter bag and improving the installation efficiency.

[0010] Preferably, the fixing mechanism includes fixing plates, and the number of fixing plates is set to multiple, with the top of each fixing plate fixedly connected to the mounting ring, and the multiple fixing plates are distributed around the center of the mounting ring;

[0011] The fixed plate has an installation plate on one side. The top of the installation plate is fixedly connected to the installation ring. A threaded rod is threadedly connected to the middle of the installation plate. A knob is fixedly connected to one end of the threaded rod. A stop plate is rotatably connected to the other end of the threaded rod. Two limiting rods are fixedly connected to the side wall of the stop plate. The middle of each of the two limiting rods passes through the adjacent installation plates. The two limiting rods are slidably connected to the adjacent installation plates.

[0012] When installing the filter bag body, firstly, multiple expansion rods are deflected towards the center of the mounting ring around the universal ball joint, thereby simultaneously retracting the multiple expansion rods. Then, the retracted expansion rods are inserted into the filter bag body, and the opening of the filter bag body is fitted around the outer periphery of multiple fixing rods. At this time, rotating the knob can drive the first threaded rod to rotate, and the first threaded rod will move in the middle of the mounting plate that is threaded to it, driving the abutment plate to move until the opening of the filter bag body is clamped and fixed between the abutment plate and the fixing plate. Therefore, by rotating multiple knobs in sequence through the above structure, the fixing between the filter bag body and the mounting ring can be completed.

[0013] Preferably, all of the fixing plates are arc-shaped, all of the abutments are arc-shaped, all of the abutment sidewalls are provided with anti-slip pads, and all of the abutments are respectively matched with the fixing plates;

[0014] By installing anti-slip pads on the sidewalls of the support plate, the friction between the support plate and the filter bag body can be increased, thereby preventing the filter bag from falling off the device during use.

[0015] Preferably, the outer circumference of the limiting ring is provided with guide wheels, and the number of guide wheels is set to multiple, and the multiple guide wheels are evenly distributed;

[0016] By setting guide wheels, the sliding friction between the outer circumference of the limiting ring and the filter bag body can be converted into the rotational friction of the guide wheels, thereby reducing the friction between the limiting ring and the filter bag body, which in turn reduces the wear on the filter bag and prevents the filter bag from being scratched.

[0017] Preferably, each of the ends of the plurality of expansion rods is fixedly connected to a protective member, and each of the plurality of protective members is spherical;

[0018] By installing a spherical protective element at the end of the expansion rod, the end of the expansion rod can be prevented from scratching the inside of the filter bag body.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a needle-punched felt filter bag for dust removal equipment.

[0020] To maintain the pore size on its surface, filter bags are generally made of inelastic materials. By setting up an expansion support mechanism, the inelastic filter bag can be installed without having to be pulled from the bottom of the device and fitted onto the outside of the device. Instead, the bottom of the device can be contracted, and the filter bag can be expanded after it is fitted onto the device. This reduces the difficulty of installing the filter bag and improves the installation efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the expansion support mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the limiting ring structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the expansion rod structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the abutment structure of this utility model.

[0027] In the picture:

[0028] 1. Mounting ring; 11. Mounting hole; 12. Filter bag body;

[0029] 2. Expansion support mechanism; 21. Fixed rod; 22. Limiting ring; 23. Expansion rod; 24. Positioning ring; 25. Slide groove;

[0030] 3. Fixing mechanism; 31. Fixing plate; 32. Mounting plate; 33. Threaded rod; 34. Knob; 35. Support plate; 36. Limiting rod;

[0031] 4. Anti-slip mat; 5. Guide rollers; 6. Protective components. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0033] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0034] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Please see Figure 1-6This utility model provides a technical solution: a needle-punched felt filter bag for dust removal equipment, including an installation ring 1, a plurality of installation holes 11 on the surface of the installation ring 1, an expansion support mechanism 2 at the bottom of the installation ring 1, a filter bag body 12 on the outer periphery of the expansion support mechanism 2, and the expansion support mechanism 2 is used to shape the filter bag, thereby preventing the filter bag from deforming during use.

[0038] The expansion support mechanism 2 includes a fixed rod 21 and a limiting ring 22. The number of fixed rods 21 is set to be multiple. The multiple fixed rods 21 are distributed around the center of the mounting ring 1. The top of the multiple fixed rods 21 is fixedly connected to the mounting ring 1. The bottom of the multiple fixed rods 21 is movably connected to an expansion rod 23 through a universal ball. The outer periphery of the multiple expansion rods 23 is fixedly connected to a positioning ring 24.

[0039] The surface of the limiting ring 22 is provided with multiple sliding grooves 25, and the limiting ring 22 is slidably connected to multiple fixed rods 21 and expansion rods 23 through the multiple sliding grooves 25 respectively.

[0040] The expansion support mechanism 2 is provided with a fixing mechanism 3 on its outer periphery. The fixing mechanism 3 is used to fix the filter bag body 12 to the mounting ring 1.

[0041] Furthermore, the fixing mechanism 3 includes a fixing plate 31, and the number of fixing plates 31 is set to multiple. The top of each fixing plate 31 is fixedly connected to the mounting ring 1, and the multiple fixing plates 31 are distributed around the center of the mounting ring 1.

[0042] A mounting plate 32 is provided on one side of the fixed plate 31. The top of the mounting plate 32 is fixedly connected to the mounting ring 1. A threaded rod 33 is threadedly connected to the middle of the mounting plate 32. A knob 34 is fixedly connected to one end of the threaded rod 33, and a stop plate 35 is rotatably connected to the other end of the threaded rod 33. Two limiting rods 36 are fixedly connected to the side wall of the stop plate 35. The middle of the two limiting rods 36 is set through the adjacent mounting plates 32, and the two limiting rods 36 are slidably connected to the adjacent mounting plates 32.

[0043] Furthermore, all the fixing plates 31 are arc-shaped, all the abutment plates 35 are arc-shaped, and all the abutment plates 35 have anti-slip pads 4 on their side walls. Each abutment plate 35 is matched with a fixed plate 31.

[0044] Furthermore, the outer circumference of the limiting ring 22 is provided with guide wheels 5, and the number of guide wheels 5 is set to multiple, with the multiple guide wheels 5 evenly distributed.

[0045] Furthermore, each of the ends of the multiple expansion rods 23 is fixedly connected to a protective element 6, and all the protective elements 6 are spherical.

[0046] Working principle and usage process of this utility model:

[0047] When the filter bag body 12 needs to be installed, firstly, multiple expansion rods 23 are deflected towards the center of the mounting ring 1 with the universal ball as the axis, thereby simultaneously retracting multiple expansion rods 23. Then, the retracted expansion rods 23 are inserted into the filter bag body 12, and the opening of the filter bag body 12 is fitted around the outer periphery of multiple fixing rods 21. At this time, rotating the knob 34 can drive the first threaded rod 33 to rotate. At the same time, the first threaded rod 33 will move in the middle of the mounting plate 32 that is threaded to it and drive the abutment plate 35 to move until the opening of the filter bag body 12 is clamped and fixed between the abutment plate 35 and the fixing plate 31. Therefore, by rotating multiple knobs 34 in sequence through the above structure, the fixing between the filter bag body 12 and the mounting ring 1 can be completed.

[0048] Then, the limiting ring 22 between the multiple fixed rods 21 is slid downwards, so that the limiting ring 22 slides between the multiple expansion rods 23 until the bottom of the limiting ring 22 abuts against the positioning ring 24 on the outer periphery of the multiple expansion rods 23. At this time, the limiting ring 22 will cause the multiple expansion rods 23 to unfold and support the filter bag body 12, and limit the multiple expansion rods 23. In order to keep the pore size of the filter bag unchanged, it is generally made of non-elastic material. With the above structure, the non-elastic filter bag does not need to be pulled from the bottom of the device and put on the outside of the device. Instead, the bottom of the device can be contracted and the filter bag can be expanded after it is put on, thereby reducing the installation difficulty of the filter bag and improving the installation efficiency of the filter bag.

Claims

1. A needle-punched felt filter bag for dust removal equipment, comprising an mounting ring (1), characterized in that: The mounting ring (1) has multiple mounting holes (11) on its surface. The mounting ring (1) has an expansion support mechanism (2) at its bottom. The expansion support mechanism (2) has a filter bag body (12) on its outer periphery. The expansion support mechanism (2) is used to shape the filter bag, thereby preventing the filter bag from deforming during use. The expansion support mechanism (2) includes a fixed rod (21) and a limiting ring (22). The number of fixed rods (21) is set to multiple. The multiple fixed rods (21) are distributed around the center of the mounting ring (1). The top of the multiple fixed rods (21) is fixedly connected to the mounting ring (1). The bottom of the multiple fixed rods (21) is movably connected to an expansion rod (23) through a universal ball. The outer periphery of the multiple expansion rods (23) is fixedly connected to a positioning ring (24). The surface of the limiting ring (22) is provided with multiple sliding grooves (25), and the limiting ring (22) is slidably connected to multiple fixed rods (21) and expansion rods (23) through the multiple sliding grooves (25); The expansion support mechanism (2) is provided with a fixing mechanism (3) on its outer periphery. The fixing mechanism (3) is used to fix the filter bag body (12) to the mounting ring (1).

2. The needle-punched felt filter bag for dust removal equipment as described in claim 1, characterized in that: The fixing mechanism (3) includes a fixing plate (31), and the number of fixing plates (31) is set to multiple. The top of each of the multiple fixing plates (31) is fixedly connected to the mounting ring (1), and the multiple fixing plates (31) are distributed around the center of the mounting ring (1). The fixed plate (31) is provided with an installation plate (32) on one side. The top of the installation plate (32) is fixedly connected to the installation ring (1). A threaded rod (33) is threadedly connected to the middle of the installation plate (32). A knob (34) is fixedly connected to one end of the threaded rod (33). A stop plate (35) is rotatably connected to the other end of the threaded rod (33). Two limiting rods (36) are fixedly connected to the side wall of the stop plate (35). The middle of the two limiting rods (36) is set through the adjacent installation plate (32). The two limiting rods (36) are slidably connected to the adjacent installation plates (32).

3. The needle-punched felt filter bag for dust removal equipment as described in claim 2, characterized in that: The multiple fixing plates (31) are all arc-shaped, the multiple abutment plates (35) are all arc-shaped, the side walls of the multiple abutment plates (35) are provided with anti-slip pads (4), and the multiple abutment plates (35) are respectively matched with the multiple fixing plates (31).

4. The needle-punched felt filter bag for dust removal equipment as described in claim 1, characterized in that: The limiting ring (22) is provided with guide wheels (5) on its outer circumference. The number of guide wheels (5) is set to multiple and the multiple guide wheels (5) are evenly distributed.

5. The needle-punched felt filter bag for dust removal equipment as described in claim 1, characterized in that: Each of the expansion rods (23) is fixedly connected to a protective member (6), and each of the protective members (6) is spherical.

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