A wrinkle-resistant dust filter bag

Abstract

The present invention relates to the technical field of dust filter bags, and in particular to an anti-wrinkle dust filter bag, comprising a filter bag body; the filter bag body is arranged in a cylindrical shape; a connector is arranged on the top of the filter bag body; a plurality of groups of annular limiters are arranged in the middle of the filter bag body; the limiters include an outer sleeve and an internal connecting sleeve; a cavity is formed between the outer sleeve and the connecting sleeve; a plurality of elastic air bags are arranged in an annular array in the cavity; a plurality of through holes are arranged in an annular array on the inner side wall of the connecting sleeve, and the through holes are connected to the air bags; contact belts are arranged on the top and bottom of the connecting sleeve, and the contact belts are fixed to the filter material of the filter bag body; the present invention can effectively prevent wrinkles from occurring on the filter bag body, and at the same time can prevent wear caused by collision between the filter bag bodies; it is beneficial to improve the service life of the filter bag body.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal filter bags, and in particular to an anti-wrinkle dust removal filter bag. Background Art

[0002] The dust filter bag is a highly efficient dust filter material with good ventilation performance, high dust collection efficiency, and certain acid, alkali and heat resistance. Multi-sided velvet is used in the weaving process to increase the fabric thickness and elasticity. The dust removal effect is very good, and the dust removal rate can reach 99.999%. The dust filter bag is made of polyester staple fiber or long fiber. The service life is generally 4-6 times that of glass fiber fabric. It has good air permeability, high dust collection rate, easy cleaning, and dust removal efficiency can reach 98.99%. In the prior art, the cylindrical dust filter bag will be folded and stored during the production and transportation process, which will cause creases to form on the surface of the filter bag; and during the installation and use process, the filter bag will bounce and shrink during the filtering and cleaning process; and the wear will increase at the crease point, affecting the service life of the filter bag.

[0003] In order to solve the above problems, this application proposes an anti-wrinkle dust filter bag. Summary of the invention

[0004] (I) Purpose of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes an anti-wrinkle dust filter bag, which can effectively prevent wrinkles from appearing on the filter bag body, and at the same time can prevent wear caused by collision between the filter bag bodies; it is beneficial to improve the service life of the filter bag body.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides an anti-wrinkle dust filter bag, comprising a filter bag body;

[0008] The filter bag body is arranged in a cylindrical shape; a connector is arranged on the top of the filter bag body; and a plurality of groups of annular limiting members are arranged in the middle of the filter bag body;

[0009] The limiting member includes an outer sleeve and an internal connecting sleeve; a cavity is formed between the outer sleeve and the connecting sleeve; a plurality of elastic airbags are distributed in a circular array in the cavity; a plurality of through holes are distributed in a circular array on the inner side wall of the connecting sleeve, and the through holes are connected to the airbags; contact belts are provided on the top and bottom of the connecting sleeve, and the contact belts are fixed to the filter material of the filter bag body.

[0010] Preferably, under the action of external wind pressure, the filter bag body is attached to the supporting frame; and the airbag remains in a compressed state.

[0011] Preferably, the outer sheath and the connecting sleeve are both elastic members.

[0012] Preferably, the pulse blower sprays high-pressure gas into the interior of the filter bag body, and the filter bag body is expanded under the action of the gas pressure; the gas in the filter bag body is poured into the airbag through the through hole.

[0013] Preferably, when the airbag expands, the distance between the outer sheath and the connecting sleeve increases.

[0014] Preferably, the airbag contracts, the outer sheath hits the connecting sleeve, and reciprocates and hits multiple times under the action of the elastic airbag, causing the entire filter bag body to shake.

[0015] Preferably, shaping wires are interspersed inside the filter bag body; the shaping wires are arranged in a plurality of groups distributed in a circular array.

[0016] Preferably, the shaping wire includes an elastic wire a and an elastic wire b; the elastic wire a is arranged along the outer side of the filter bag body, and the elastic wire a is fixedly installed with a contact belt on the limiter; the elastic wire b is arranged along the inner side of the filter bag body.

[0017] Preferably, there is a gap between the elastic thread a and the elastic thread b.

[0018] The above technical solution of the present invention has the following beneficial technical effects:

[0019] 1. When spray cleaning is required, the pulse blower sprays high-pressure gas into the filter bag body; the entire filter bag body is stretched open by the air pressure; the gas in the filter bag body is poured into the air bag through the through hole; the air bag expands rapidly; and due to the existence of the air bag, compared with the traditional filter bag; the expansion rate is significantly reduced at the location where the limiter is installed; the overall expansion range of the filter bag body is suppressed, which is beneficial to reduce the chance of wrinkles in the filter bag body.

[0020] 2. As the airbag expands, the distance between the outer sleeve and the connecting sleeve will also increase; this can prevent the adjacent filter bags from colliding during the spray cleaning process, avoid additional wear caused by friction, and affect the service life of the filter bag.

[0021] 3. When the filter bag expands to its maximum, it gradually returns to its original position. At this time, the gas in the airbag is ejected quickly. After the ejection, the distance between the outer sleeve and the connecting sleeve is rapidly reduced. Since the outer sleeve is an elastic body, after contraction, the outer sleeve will hit the connecting sleeve and reciprocate for many times under the action of the elastic airbag. Each impact can drive the entire filter bag to move, thereby facilitating the shaking off of the accumulated dust on the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the limiting member in the present invention when it is in a retracted state;

[0024] Figure 3 It is a schematic diagram of the structure of the present invention when the limiting member is in a propped-up state;

[0025] Figure 4 It is a schematic diagram of the top view of the limiter in the present invention;

[0026] Figure 5 This is a schematic diagram of the installation position structure of the shaping wire in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the shaped yarn in the present invention.

[0028] Figure numerals: 1, filter bag body; 2, limit piece; 21, outer sheath; 22, connecting sleeve; 23, contact belt; 24, through hole; 25, airbag; 3, connector; 4, shaping wire; 41, elastic wire a; 42, elastic wire b. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0030] like Figure 1 As shown, the present invention provides an anti-wrinkle dust filter bag, comprising a filter bag body 1;

[0031] In this embodiment, the filter bag body 1 is arranged in a cylindrical shape; a connector 3 is arranged on the top of the filter bag body 1; and a plurality of groups of annular limiting members 2 are arranged in the middle of the filter bag body 1.

[0032] It should be noted that the cylindrical filter bag body 1 is compatible with the existing supporting frame and has good compatibility; it can be directly installed and used; the connecting head 3 arranged on the top of the filter bag body 1 is convenient for fixed installation with the flower plate; the limiter 2 arranged in the middle of the filter bag body 1 can buffer and limit the filter bag, thereby playing an anti-wrinkle role.

[0033] like Figure 2-4 As shown, an anti-wrinkle dust filter bag proposed by the present invention includes a filter bag body 1; a limiter 2 includes an outer sleeve 21 and an internal connecting sleeve 22; a cavity is formed between the outer sleeve 21 and the connecting sleeve 22; a plurality of elastic air bags 25 are distributed in a circular array in the cavity; a plurality of through holes 24 are distributed in a circular array on the inner side wall of the connecting sleeve 22, and the through holes 24 are connected to the air bags 25; contact belts 23 are provided on the top and bottom of the connecting sleeve 22, and the contact belts 23 are fixed to the filter material of the filter bag body 1.

[0034] It should be noted that the filter bag body 1 is normally installed in the bag dust collector. When filtering, under the action of external wind pressure, the filter bag body 1 is attached to the supporting frame. The air bag 25 remains in a compressed state, and the outer sheath 21 and the connecting sleeve 22 are both elastic parts. When spray cleaning is required, the pulse blower sprays high-pressure gas into the inside of the filter bag body 1. The entire filter bag body 1 is stretched open under the action of air pressure. The gas in the filter bag body 1 is poured into the air bag 25 through the through hole 24. The air bag 25 expands rapidly. Due to the presence of the air bag 25, compared with traditional filter bags, its expansion rate is significantly reduced at the location where the limiter 2 is installed. The overall expansion range of the filter bag body 1 is suppressed, which is beneficial to reducing the probability of wrinkles in the filter bag body 1. As the air bag 25 expands, the distance between the outer sheath 21 and the connecting sleeve 22 will also increase. It can avoid collisions between adjacent filter bags during spray cleaning, avoid additional wear caused by friction, and affect the service life of the filter bag body 1.

[0035] When the filter bag body 1 expands to the maximum, the filter bag body 1 gradually returns to its original position; at this time, the gas in the airbag 25 is quickly ejected, and the distance between the outer sheath 21 and the connecting sleeve 22 is rapidly reduced after the ejection. Since the outer sheath 21 is an elastic body; after contraction, the outer sheath 21 will hit the connecting sleeve 22, and reciprocate and hit it multiple times under the action of the elastic airbag 25, and each impact can drive the entire filter bag body 1 to move, thereby facilitating the shaking off of the accumulated dust on the filter bag body 1.

[0036] like Figure 5-6 As shown, shaping wires 4 are interspersed inside the filter bag body 1; the shaping wires 4 are arranged in a plurality of groups in a circular array, and the shaping wires 4 include elastic wires a41 and elastic wires b42; the elastic wires a41 are arranged along the outer side of the filter bag body 1, and the elastic wires a41 and the contact belt 23 on the limiter 2 are fixedly installed; the elastic wires b42 are arranged along the inner side of the filter bag body 1; and there is a gap between the elastic wires a41 and the elastic wires b42.

[0037] It should be noted that when the filter bag body 1 undergoes elastic deformation, the elastic wire a41 and the elastic wire b42 will also undergo elastic deformation accordingly. During the retraction process, the top and bottom of the elastic wire a41 and the elastic wire b42 remain fixed to the top and bottom of the filter bag body 1, thereby playing a shaping role and avoiding wrinkles during the retraction process.

[0038] The working principle and use process of the present invention are as follows: the filter bag body 1 and the support frame are installed, and the support frame is inserted into the inside of the filter bag body 1 to support the filter bag body 1 as a whole; when the filter bag body 1 is filtering normally, under the action of external wind pressure, the filter bag body 1 is attached to the support frame; at the same time, the airbag 25 is kept in a compressed state; and the outer sheath 21 and the connecting sleeve 22 are both elastic parts;

[0039] When spray cleaning is required, the pulse blower sprays high-pressure gas into the filter bag body 1; the entire filter bag body 1 is stretched open by the air pressure; the gas in the filter bag body 1 is poured into the air bag 25 through the through hole 24; the air bag 25 expands rapidly; and due to the presence of the air bag 25, compared with the traditional filter bag; the expansion rate is significantly reduced at the location where the limiter 2 is installed, which suppresses the overall expansion range of the filter bag body 1, which is beneficial to reducing the probability of wrinkles on the filter bag body 1; as the air bag 25 expands, the distance between the outer sheath 21 and the connecting sleeve 22 will also increase, which can avoid collisions between adjacent filter bags during the spray cleaning process, avoid additional wear caused by friction, and affect the service life of the filter bag body 1.

[0040] When the filter bag body 1 expands to the maximum, the filter bag body 1 gradually returns to its original position; at this time, the gas in the airbag 25 is ejected quickly, and the distance between the outer sheath 21 and the connecting sleeve 22 is rapidly reduced after the ejection. Since the outer sheath 21 is an elastic body, after contraction, the outer sheath 21 will hit the connecting sleeve 22, and reciprocate and hit multiple times under the action of the elastic airbag 25, and each impact can drive the entire filter bag body 1 to move, so as to facilitate the dust accumulation on the filter bag body 1. The present invention can effectively prevent the filter bag body 1 from wrinkling, and can also prevent the filter bag body 1 from being worn due to collisions, which is conducive to improving the service life of the filter bag body 1.

[0041] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A wrinkle-resistant dust filter bag, characterized in that: It includes a filter bag body (1); The filter bag body (1) is arranged in a cylindrical shape; a connector (3) is arranged on the top of the filter bag body (1); and a plurality of groups of annular limiting members (2) are sleeved on the outer side of the middle part of the filter bag body (1); The limiting member (2) comprises an outer protective sleeve (21) and an inner connecting sleeve (22); a cavity is formed between the outer protective sleeve (21) and the connecting sleeve (22); a plurality of elastic air bags (25) are arranged in a circular array in the cavity; The airbag (25) expands, and the distance between the outer sheath (21) and the connecting sleeve (22) increases; A plurality of through holes (24) are arranged in a circular array on the inner side wall of the connecting sleeve (22), and the through holes (24) are connected to the air bag (25); contact belts (23) are arranged on the top and bottom of the connecting sleeve (22), and the contact belts (23) are fixed to the filter material of the filter bag body (1).

2. The anti-wrinkle dust filter bag according to claim 1, characterized in that: Under the action of external wind pressure, the filter bag body (1) is attached to the supporting frame; and the air bag (25) remains in a compressed state.

3. The anti-wrinkle dust filter bag according to claim 1, characterized in that: The outer sheath (21) and the connecting sleeve (22) are both elastic parts.

4. The anti-wrinkle dust filter bag according to claim 1, characterized in that: The pulse blower sprays high-pressure gas into the filter bag body (1), and the filter bag body (1) is stretched open under the action of the gas pressure; the gas in the filter bag body (1) is poured into the air bag (25) through the through hole (24).

5. The anti-wrinkle dust filter bag according to claim 1, characterized in that: The airbag (25) contracts, the outer sheath (21) hits the connecting sleeve (22), and reciprocates and hits multiple times under the action of the elastic airbag (25), driving the entire filter bag body (1) to vibrate.

6. The anti-wrinkle dust filter bag according to claim 1, characterized in that: The filter bag body (1) is provided with shaping wires (4) inserted therein; the shaping wires (4) are provided in a plurality of groups distributed in a ring array.

7. The anti-wrinkle dust filter bag according to claim 1, characterized in that: The shaping wire (4) comprises an elastic wire a (41) and an elastic wire b (42); the elastic wire a (41) is arranged along the outer side of the filter bag body (1), and the elastic wire a (41) and the contact belt (23) on the stopper (2) are fixedly mounted; the elastic wire b (42) is arranged along the inner side of the filter bag body (1).

8. The anti-wrinkle dust filter bag according to claim 7, characterized in that: There is a gap between the elastic thread a (41) and the elastic thread b (42).

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