Chimney dust removal filter bag

Abstract

The utility model belongs to the technical field of dust removal filter bags, and discloses a chimney dust removal filter bag which comprises a filter bag body, the filter bag body is formed by weaving composite yarn, a stainless steel fiber layer is arranged on the side wall of the filter bag body, a fluorescent layer is arranged on the side wall of the stainless steel fiber layer, and a PU coating is arranged on the side wall of the fluorescent layer. The device has the effect of reducing the difficulty of detecting the wear condition of the PU coating by a worker.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal filter bags, in particular to a chimney dust removal filter bag. Background Technique

[0002] The dust removal filter bag is a highly efficient dust removal filter material. The dust removal filter bag is made of polyester staple fiber or long fiber as raw materials, and its service life is generally 4-6 times that of glass fiber fabrics. It has good air permeability, high dust collection rate, easy dust cleaning, and the dust removal efficiency can reach 98.99%.

[0003] When the dust removal filter bag removes dust from the gas, the dust substances in the gas follow the gas and impact on the dust removal filter bag and are blocked by the dust removal filter bag. During this process, the PU coating arranged on the outermost side of the dust removal filter bag is prone to wear. After the PU coating is exhausted, the staff can protect the dust removal filter bag by re-spraying the PU coating. However, in most cases, the staff needs to clean the dust removal filter bag and place it under a professional instrument to detect the wear condition of the PU coating, and the operation is relatively complex and the efficiency is low. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides a chimney dust removal filter bag.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme: a chimney dust removal filter bag, including a filter bag body, the filter bag body is woven with composite yarn, a stainless steel fiber layer is arranged on the side wall of the filter bag body, a fluorescent layer is arranged on the side wall of the stainless steel fiber layer, and a PU coating is arranged on the side wall of the fluorescent layer.

[0006] By adopting the above technical scheme, stainless steel fiber is a new type of industrial material, which not only has properties such as high conductivity, high thermal conductivity, high strength, high temperature resistance, and corrosion resistance, thus reducing the probability that the dust substances in the gas cause damage to the dust removal filter bag when the dust removal filter bag filters the gas. When the dust removal filter bag filters the gas, the PU coating on the dust removal filter bag is prone to wear. At this time, the staff only needs to remove the dust removal filter bag, clean a local area of the dust removal filter bag, and irradiate the cleaned area with an ultraviolet lamp. When the PU coating is about to completely disappear, the light can directly penetrate the PU coating and contact the fluorescent layer, and then the staff receives the fluorescent signal, and then judges the wear condition of the PU coating in this area, thereby reducing the difficulty for the staff to judge the wear condition of the PU coating.

[0007] Furthermore, transparent protective layers are arranged on both side walls of the fluorescent layer opposite to each other.

[0008] By adopting the above technical solution, the probability of the fluorescent layer being oxidized during the filtration process is reduced, which is beneficial to extending the service life of the filter bag.

[0009] Furthermore, a PTEF microporous membrane layer is provided between the filter bag body and the stainless steel fiber layer.

[0010] By adopting the above technical solution, the PTEF microporous membrane layer has good high-temperature resistance, can effectively improve the high-temperature resistance of the dust removal filter bag, and further effectively improves the continuous working temperature of the dust removal filter bag.

[0011] Furthermore, the transparent protective layer is a transparent protective layer made of high-temperature resistant transparent silica gel.

[0012] By adopting the above technical solution, high-temperature resistant transparent silica gel is a common performance silica gel product. Ordinary silica gel has a high temperature resistance between 200 and 300 degrees Celsius. High-temperature resistant transparent silica gel can reach a maximum temperature of about 350 degrees Celsius within a short time, such as two hours, thus effectively reducing the probability of damage to the fluorescent layer and improving the working experience of the staff.

[0013] Furthermore, the composite yarn includes AC fiber and SS fiber twisted together.

[0014] Furthermore, the composite yarn further includes NX fiber, and the NX fiber is twisted together with the AC fiber and the SS fiber.

[0015] By adopting the above technical solution, AC fiber refers to acetate fiber, which is a man-made fiber formed by cellulose. Acetate fiber is a medium-weight fiber with excellent drape performance and delicate handfeel, average elasticity, average water absorption, and no static electricity phenomenon. SS fiber is a kind of non-woven fabric fiber with good self-adhesion and self-healing properties. NX fiber, namely Meta-Aramid fiber, has good heat resistance, flame retardancy, and infusibility. Polyphenylene sulfide fiber, also known as PPS fiber, has excellent chemical reagent resistance, hydrolysis resistance, and flame retardancy. The composite yarn formed by twisting the NX fiber with the AC fiber and the SS fiber has good heat resistance, self-adhesion, and infusibility, which can effectively improve the heat resistance of the dust removal filter bag and further improve the continuous working temperature of the dust removal filter bag.

[0016] Furthermore, a flange edge is provided at the bag mouth of the filter bag body.

[0017] By adopting the above technical solution, the flange edge improves the structural strength at the bag mouth of the filter bag body and reduces the difficulty for the staff to connect the dust removal filter bag to the chimney, thereby improving the working experience of the staff.

[0018] Furthermore, the sum of the thicknesses of the filter bag body, the stainless steel fiber layer, the fluorescent layer, the PTEF microporous membrane layer, the transparent protective layer, and the PU coating is 2.1 millimeters.

[0019] In summary, the present utility model has the following beneficial effects:

[0020] 1. In this application, stainless steel fiber is a new type of industrial material, which not only has properties such as high conductivity, high thermal conductivity, high strength, high temperature resistance, and corrosion resistance, thereby reducing the probability of damage to the dust removal filter bag caused by dust substances in the gas when the dust removal filter bag filters the gas. When the dust removal filter bag filters the gas, the PU coating on the dust removal filter bag is prone to wear. At this time, the staff only needs to remove the dust removal filter bag, clean a local area of the dust removal filter bag, and irradiate the cleaned area with an ultraviolet lamp. When the PU coating is about to completely disappear, the light can directly penetrate the PU coating and contact the fluorescent layer, thereby enabling the staff to receive the fluorescent signal, and then judge the wear condition of the PU coating in this area, thus reducing the difficulty for the staff to judge the wear condition of the PU coating;

[0021] 2. In this application, high-temperature resistant transparent silica gel is a common performance silica gel product among silica gel products. The high temperature resistance of ordinary silica gel is between 200 and 300 degrees Celsius, and the highest temperature of high-temperature resistant transparent silica gel can reach about 350 degrees Celsius within a short time, such as two hours, thereby effectively reducing the probability of damage to the fluorescent layer, and further improving the user experience of the staff;

[0022] 3. In this application, AC fiber refers to acetate fiber, which is a man-made fiber formed by cellulose. Acetate fiber is a medium-weight fiber with excellent draping performance and delicate handfeel. It has general elasticity and general water absorption, but has no static electricity phenomenon. SS fiber is a kind of non-woven fabric fiber with good self-adhesion and self-healing characteristics. NX fiber, namely Metas fiber, has good heat resistance, flame retardancy, and non-melting properties. The composite yarn formed by twisting NX fiber, AC fiber, and SS fiber together has good heat resistance, self-adhesion, and non-melting properties, which can effectively improve the heat resistance of the dust removal filter bag, thereby further increasing the continuous working temperature of the dust removal filter bag. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0024] Figure 2 is the schematic diagram of the composite yarn and its connection structure of the embodiment of the present utility model;

[0025] Figure 3It is a schematic diagram of the PTEF microporous membrane layer and its connection structure according to an embodiment of the present utility model.

[0026] In the figure: 1. Filter bag body; 2. Composite yarn; 21. AC fiber; 22. SS fiber; 23. NX fiber; 3. Stainless steel fiber layer; 4. Fluorescent layer; 5. PU coating; 6. Transparent protective layer; 7. PTEF microporous membrane layer; 8. Flange edge. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] As Figures 1 - 3 shown, an embodiment of the present application discloses a chimney dust removal filter bag, including a filter bag body 1, a stainless steel fiber layer 3, a fluorescent layer 4, a PU coating 5, a transparent protective layer 6, and a PTEF microporous membrane layer 7. The filter bag body 1 is woven with a composite yarn 2, and the composite yarn 2 includes AC fiber 21, SS fiber 22, and NX fiber 23 that are twisted together.

[0029] The AC fiber 21 refers to acetate fiber, which is a man-made fiber formed by cellulose. Acetate fiber is a medium-weight fiber with excellent draping performance and delicate handfeel, average elasticity, average water absorption, and no static electricity phenomenon. The SS fiber 22 is a type of non-woven fabric fiber with good self-adhesion and self-healing properties. The NX fiber 23 is Metax fiber, which has good heat resistance, flame retardancy, and non-melting properties. Polyphenylene sulfide fiber, also known as PPS fiber, has excellent chemical reagent resistance, hydrolysis resistance, and flame retardancy. The composite yarn 2 formed by twisting the NX fiber 23 with the AC fiber 21 and the SS fiber 22 has good heat resistance, self-adhesion, and non-melting properties, which can effectively improve the heat resistance of the dust removal filter bag, thereby further increasing the continuous working temperature of the dust removal filter bag.

[0030] The stainless steel fiber layer 3 is provided on the side wall of the filter bag body 1, and the fluorescent layer 4 is provided on the side wall of the stainless steel fiber layer 3. The PU coating 5 is provided on the side wall of the fluorescent layer 4 for protecting the dust removal filter bag.

[0031] There are two transparent protective layers 6, which are respectively provided on the two opposite side walls of the fluorescent layer 4. The transparent protective layer 6 reduces the probability of the fluorescent layer 4 being oxidized during the filtration process, thereby facilitating the extension of the service life of the filter bag.

[0032] The PTEF microporous membrane layer 7 is disposed between the filter bag body 1 and the stainless steel fiber layer 3. The PTEF microporous membrane layer 7 has good high-temperature resistance, which can effectively improve the high-temperature resistance of the dust removal filter bag, and thus effectively increase the continuous working temperature of the dust removal filter bag.

[0033] To improve the working experience of the staff, the transparent protective layer 6 is made of high-temperature resistant transparent silica gel. High-temperature resistant transparent silica gel is a common performance silica product. The high temperature resistance of ordinary silica gel is between 200 and 300 degrees Celsius. The high-temperature resistant transparent silica gel can reach a maximum temperature of about 350 degrees Celsius in a short time, such as two hours. This effectively reduces the probability of damage to the fluorescent layer 4, and thus improves the working experience of the staff.

[0034] The flange edge 8 is provided at the bag mouth of the filter bag body 1. The flange edge 8 improves the structural strength of the bag mouth of the filter bag body 1 and reduces the difficulty for the staff to connect the dust removal filter bag to the chimney, thereby improving the working experience of the staff.

[0035] To improve the hand feeling of the dust removal filter bag, the total thickness of the filter bag body 1, the stainless steel fiber layer 3, the fluorescent layer 4, the PTEF microporous membrane layer 7, the transparent protective layer 6 and the PU coating 5 is 2.1 mm.

[0036] The working principle of a chimney dust removal filter bag in this embodiment is as follows: Stainless steel fiber is a new type of industrial material, which not only has properties such as high conductivity, high thermal conductivity, high strength, high temperature resistance, and corrosion resistance, thus reducing the probability of damage to the dust removal filter bag caused by dust substances in the gas when the dust removal filter bag filters the gas. When the dust removal filter bag filters the gas, the PU coating 5 on the dust removal filter bag is prone to wear. At this time, the staff only needs to remove the dust removal filter bag, clean a local area of the dust removal filter bag, and irradiate the cleaned area with an ultraviolet lamp. When the PU coating 5 is about to completely disappear, the light can directly penetrate the PU coating 5 and contact the fluorescent layer 4, so that the staff can receive the fluorescent signal, and then judge the wear condition of the PU coating 5 in this area, thereby reducing the difficulty for the staff to judge the wear condition of the PU coating 5.

[0037] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A chimney dust removal filter bag, comprising a filter bag body (1), characterized in that: The filter bag body (1) is woven from a composite yarn (2). A stainless steel fiber layer (3) is provided on the side wall of the filter bag body (1). A fluorescent layer (4) is provided on the side wall of the stainless steel fiber layer (3). A PU coating (5) is provided on the side wall of the fluorescent layer (4).

2. A chimney dust removal filter bag according to claim 1, characterized in that: Transparent protective layers (6) are provided on both side walls of the fluorescent layer (4) that face each other.

3. The chimney dust removal filter bag according to claim 2, characterized in that: A PTEF microporous membrane layer (7) is provided between the filter bag body (1) and the stainless steel fiber layer (3).

4. The chimney dust removal filter bag according to claim 3, characterized in that: The transparent protective layer (6) is a transparent protective layer (6) made of high-temperature resistant transparent silica gel.

5. A chimney dust removal filter bag according to claim 4, characterized in that: The composite yarn (2) includes AC fibers (21) and SS fibers (22) that are twisted together.

6. The chimney dust removal filter bag according to claim 5, characterized in that: The composite yarn (2) further includes NX fibers (23), and the NX fibers (23) are twisted together with the AC fibers (21) and the SS fibers (22).

7. A chimney dust removal filter bag according to claim 6, characterized in that: A flange edge (8) is provided at the bag mouth of the filter bag body (1).

8. A chimney dust removal filter bag according to claim 7, characterized in that: The sum of the thicknesses of the filter bag body (1), the stainless steel fiber layer (3), the fluorescent layer (4), the PTEF microporous membrane layer (7), the transparent protective layer (6), and the PU coating (5) is 2.1 millimeters.

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