Capillary fiber oil absorption filter bag

Abstract

The utility model discloses a capillary fiber oil absorption filter bag which comprises a filter shell and further comprises a framework connected with the filter shell, a filter bag body located on the outer side of the filter shell is fixedly installed on the framework, framework rods are arranged on the framework in a circumferential mode, lower arc pieces are arranged on the framework rods at equal intervals, inner bag openings are formed in the inner wall of the filter bag body, and the lower arc pieces are embedded into the inner bag openings. The end of the lower arc piece abuts against the inner bag opening and is attached to the filter shell. According to the capillary fiber oil absorption filter bag provided by the utility model, after the lower arc sheet on the bone rod extends into the inner bag opening, the inner bag opening is propped against the elastic lower arc sheet and the opening is kept open upwards, so that the edge of the inner bag opening is kept against the side wall of the filter shell, and a preset gap is kept between the filter bag mainly used for filtering and the filter shell; therefore, the oil-containing gas has enough filtering space, the problem that the inner wall of the filter bag is adhered due to the attachment of oil dirt is avoided, the situation that airflow does not circulate is greatly reduced, and the filtering effect of the filter bag can also be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filter bags, in particular to a capillary fiber oil-absorbing filter bag. Background Art

[0002] Filter bags are commonly used in industries such as chemical engineering, metallurgy, and mining. Due to their good corrosion resistance and heat resistance, they have high dust removal efficiency and are mainly made of materials such as polyester fiber, polyester fiber, polyurethane, and glass fiber.

[0003] According to the publication (announcement) number: CN111482013B, the publication (announcement) date: October 29, 2021, a corrugated dust removal filter bag is disclosed.

[0004] In the prior art including the above patent, the filter bags used by large fans are also relatively large in size, and a skeleton needs to be equipped and placed into the filter bag to support the filter bag to prevent the inner wall of the filter bag from adhering and affecting the filtration efficiency. However, for the exhaust port position of small equipment, in order to deal with the adhesion of the inner wall of the filter bag, the filter bag is sleeved outside the metal filter shell of the equipment, and the cylindrical filter shell is used to support the filter bag. Although the problem of the inner wall adhesion of the filter bag is solved, when filtering and treating oil-containing gas, oil and gas will be mixed with dirt and adhere between the inner wall of the filter bag and the filter shell. On the one hand, the filter bag adsorbed by oil stains will affect the gas flow between the bag body and the shell, thus affecting the filtration effect. On the other hand, the adhesion of oil stains will reduce the effective area of the filter bag and also affect the filtration effect. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a capillary fiber oil-absorbing filter bag, aiming to solve the problems generated above.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A capillary fiber oil-absorbing filter bag includes a filter shell, and also includes a skeleton connected to the filter shell. A filter bag is fixedly installed on the skeleton outside the filter shell, and circumferentially arranged bone rods are provided on the skeleton;

[0008] Equidistantly arranged lower arc pieces are provided on the bone rods. An inner bag mouth embedded by the lower arc pieces is arranged on the inner wall of the filter bag, and the end of the lower arc piece abuts against the inner bag mouth and fits the filter shell.

[0009] Preferably, bag holes for the bone rods to pass through are opened on the inner bag mouth.

[0010] Preferably, lower holes communicating with the bag holes are opened on the lower arc pieces.

[0011] Preferably, a channel matching the lower arc piece is opened on the bone rod, and the channel communicates with the lower hole.

[0012] Preferably, an upper arc piece matching the filter bag is fixedly mounted on the bone rod.

[0013] In the above technical scheme, a capillary fiber oil absorption filter bag provided by the utility model has the following beneficial effects: by adopting the integral molding of the skeleton and the filter bag, after the lower arc piece on the skeleton rod is extended into the inner bag opening, the inner bag opening is prompted to be resisted by the elastic lower arc piece and keep the opening upward, so that the edge of the inner bag opening maintains resistance to the side wall of the filter shell, and thus a predetermined gap is maintained between the filter bag which is mainly used for filtering function and the filter shell, so that the oil-containing gas has sufficient filtering space, avoiding the problem of sticking to the inner wall of the filter bag caused by the adhesion of oil dirt, greatly reducing the situation of airflow blockage, and also ensuring the filtering effect of the filter bag itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the explosion of the filter housing and filter bag provided in the embodiment of the utility model;

[0016] Figure 2 A side cross-sectional view of a filter bag and a schematic diagram of filter housing assembly provided in an embodiment of the utility model;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0018] Figure 4 This is a schematic diagram of a partial bone rod provided in an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. filter shell; 2. frame; 21. filter bag; 22. inner bag opening; 221. bag hole; 3. bone rod; 31. lower arc piece; 311. lower hole; 32. upper arc piece; 33. channel. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1-4 As shown, a capillary fiber oil absorption filter bag comprises a filter housing 1 and a frame 2 connected to the filter housing 1, a filter bag 21 located outside the filter housing 1 is fixedly mounted on the frame 2, and bone rods 3 arranged circumferentially are provided on the frame 2;

[0023] The bone rod 3 is provided with equally spaced lower arc-shaped pieces 31. The inner wall of the filter bag 21 is provided with an inner bag mouth 22 into which the lower arc-shaped piece 31 is inserted, and the end of the lower arc-shaped piece 31 abuts against the inner bag mouth 22 and fits against the filter housing 1.

[0024] Specifically, the filter housing 1 is a stainless steel metal mesh cylinder, and the filter bag 21 is made of capillary fibers, both of which are prior arts and will not be elaborated here. Moreover, the framework 2 and its components are made of corrosion-resistant and high-temperature-resistant plastics, which are also prior arts and will not be elaborated here.

[0025] Furthermore, the framework 2 and the filter housing 1 are connected and fixed by bolts and gaskets, while the filter bag 21 is detachably installed on the framework 2. The lower arc-shaped piece 31 is specifically an elastic plastic piece, and the inner bag mouth 22 is a pocket separately cut and sewn on the inner wall of the filter bag 21.

[0026] By integrally forming and using the framework 2 and the filter bag 21, after the lower arc-shaped piece 31 on the bone rod 3 extends into the inner bag mouth 22, the inner bag mouth 22 is urged by the elastic lower arc-shaped piece 31 to keep the opening upward and open, so that the edge of the inner bag mouth 22 remains in contact with the side wall of the filter housing 1. Furthermore, a predetermined gap is maintained between the filter bag 21 mainly used for filtering function and the filter housing 1, so that the oil-containing gas has sufficient filtering space, avoiding the problem of adhesion on the inner wall of the filter bag 21 caused by oil stain attachment, greatly reducing the situation of poor air flow, and also ensuring the filtering effect of the filter bag 21 itself.

[0027] As a further embodiment provided by the present utility model, a bag hole 221 for the bone rod 3 to pass through is opened on the inner bag mouth 22.

[0028] Specifically, the inner bag mouth 22 is cut and sewn after the installation of the bone rod 3, and the bag hole 221 is opened at the arc surface of the inner bag mouth 22. The bag hole 221 has elasticity, so that the air flow carrying dirt can pass through the bag hole 221.

[0029] Through the bag hole 221 provided on the inner bag mouth 22, when the air flow discharged from the filter housing 1 is transported to the bottom of the filter bag 21, the air flow will enter from the opening of the inner bag mouth 22 against the wind. On the one hand, the dirt in the air flow can be intercepted, reducing the influence of dirt attachment on the inner wall of the filter bag 21 on the filtering effect. On the other hand, the dirt entering between the lower arc-shaped piece 31 and the bone rod 3 can improve the deformation support of the lower arc-shaped piece 31, so that the inner bag mouth 22 is abutted by the lower arc-shaped piece 31 and maintains good tension, ensuring the gas flow in the filter bag 21.

[0030] As another further embodiment provided by the present utility model, a lower hole 311 communicating with the bag hole 221 is opened on the lower arc-shaped piece 31.

[0031] Excess dirt between the lower arc piece 31 and the bone rod 3 passes through the lower hole 311 and is conveyed downward from the bag hole 221 to the next inner bag opening 22, causing the dirt to be carried by the airflow and spread toward the other inner bag openings 22, which is used to provide a more uniform tension effect for all the lower arc pieces 31.

[0032] As another embodiment further provided by the present utility model, a duct 33 is provided on the bone rod 3 and is matched with the lower arc piece 31, and the duct 33 is communicated with the lower hole 311.

[0033] Excess dirt between the lower arc piece 31 and the bone rod 3 passes through the duct 33 and enters the inner bag opening 22 between the bone rod 3 and the filter bag 21, so that this part of the dirt accumulates with each other and generates a squeezing force on the bone rod 3, so that the entire bone rod 3 can evenly disperse the force to a plurality of lower arc pieces 31, further enhancing the effect of providing tension for the lower arc pieces 31. At the same time, the dirt can be stored to reduce the random spread of the dirt.

[0034] As still another embodiment further provided by the present utility model, an upper arc piece 32 for cooperating with the filter bag 21 is fixedly installed on the bone rod 3.

[0035] Specifically, the upper arc piece 32 is located between the bone rod 3 and the inner wall of the filter bag 21, and the arc top of the upper arc piece 32 faces the framework 2, and the upper arc piece 32 is also an elastic plastic piece.

[0036] By closing the port of the inner bag opening 22 between the bone rod 3 and the inner wall of the filter bag 21 through the upper arc piece 32, the inner bag opening 22 with the opening facing the airflow direction is continuously replenished with the oil-containing gas, and the airflow presses the oil stain between the lower arc piece 31 and the bone rod 3. On the one hand, it can accelerate the replacement efficiency of the oil stain, and on the other hand, it can also improve the storage stability of the oil stain, which is convenient for stably taking away the dirt when replacing the filter bag 21 later, and avoiding the problem of dirt dripping during the disassembly and assembly of the filter bag 21.

[0037] Working principle: By using the framework 2 and the filter bag 21 integrally formed, after the lower arc piece 31 on the bone rod 3 extends into the inner bag opening 22, the inner bag opening 22 is urged to be elastically resisted by the lower arc piece 31 and keep the opening upward and open, so that the edge of the inner bag opening 22 remains in contact with the side wall of the filter housing 1, and further a predetermined gap is maintained between the filter bag 21 mainly used for the filtering function and the filter housing 1, so that the oil-containing gas has enough filtering space to avoid the inner wall of the filter bag 21 from being adhered due to the attachment of the oil stain. And the bag hole 221 provided on the inner bag opening 22 enables the airflow discharged from the filter housing 1 to be conveyed to the bottom of the filter bag 21, and the airflow will enter from the opening of the inner bag opening 22 facing the wind. On the one hand, it can intercept the dirt in the airflow and reduce the influence of the dirt adhering to the inner wall of the filter bag 21 on the filtering effect. On the other hand, the dirt entering between the lower arc piece 31 and the bone rod 3 can improve the deformation support of the lower arc piece 31, so that the inner bag opening 22 is resisted by the lower arc piece 31 and maintains good tension.

[0038] The above only describes some exemplary embodiments of the present utility model by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A capillary fiber oil-absorbing filter bag, comprising a filter housing (1), characterized in that, It further includes a framework (2) connected to the filter housing (1). A filter bag (21) located outside the filter housing (1) is fixedly installed on the framework (2), and circumferentially arranged bone rods (3) are provided on the framework (2). Equidistantly arranged lower arc pieces (31) are provided on the bone rods (3). An inner bag mouth (22) into which the lower arc pieces (31) are embedded is arranged on the inner wall of the filter bag (21), and the ends of the lower arc pieces (31) abut against the inner bag mouth (22) and fit against the filter housing (1).

2. The capillary fiber oil-absorbing filter bag according to claim 1, wherein A bag hole (221) for the bone rod (3) to pass through is formed in the inner bag mouth (22).

3. The capillary fiber oil-absorbing filter bag according to claim 2, wherein, A lower hole (311) communicating with the bag hole (221) is formed in the lower arc piece (31).

4. The capillary fiber oil-absorbing filter bag according to claim 3, wherein A channel (33) matching the lower arc piece (31) is formed in the bone rod (3), and the channel (33) communicates with the lower hole (311).

5. The capillary fiber oil-absorbing filter bag according to claim 4, characterized in that, An upper arc piece (32) matching the filter bag (21) is fixedly installed on the bone rod (3).

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