High-weather-resistance PTFE dust removal filtering cloth bag

Abstract

The utility model discloses a high weatherability PTFE dust removal filter cloth bag, including the filter bag body, the filter bag body includes the base layer, the inner side of base layer is provided with the anticorrosive coating, and the outer side of base layer is provided with the fibrous layer, the outer side of fibrous layer is provided with the polytetrafluoroethylene layer, the utility model relates to the dust removal cloth bag technical field. According to the high-weather-resistant PTFE dust removal filter cloth bag, the wear-resistant layer is arranged, so that the cloth bag body has a wear-resistant effect, the cloth bag body is prevented from being damaged due to wear, the weather-resistant layer is arranged, so that the cloth bag body has heat-resistant and cold-resistant effects, the cloth bag body is prevented from being damaged due to the influence of temperature, and the purpose of protecting the cloth bag body is achieved; the flexibility of the dust removal filter cloth is improved, so that the prepared dust removal filter cloth is high in filtering wind speed, the aperture ratio can reach 90%, the dust removal efficiency of the dust removal filter cloth bag is improved, and the problem that a traditional dust removal filter cloth bag is low in dust removal efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal bags, in particular to a highly weather-resistant PTFE dust removal filter bag. Background Art

[0002] The dust bag is the heart of the bag dust collector, which is generally called filter dust bag, dust filter bag, dust collection bag, dust accumulation bag, dust collection bag, dust collector bag, etc. The dust bag is the key part of the operation of the bag dust collector. Usually the cylindrical filter bag is hung vertically in the dust collector. The dust collector or dust removal equipment is a device that separates dust from the flue gas, and the bag dust collector is also called a filter dust collector. It is a dry and high-efficiency dust collector. It is a dust removal device that uses bag filter elements made of fiber woven fabric to capture solid particles in dust-laden gas. Its working principle is dust When particles pass around the filter cloth fibers, they collide with the fibers due to inertia and are intercepted. Polytetrafluoroethylene, abbreviated as PTFE, commonly known as the "King of Plastics", is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. It is generally called "non-stick coating" or "easy-to-clean material". This material is resistant to acids and alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene is resistant to high temperatures and has an extremely low friction coefficient. Therefore, in addition to being a lubricant, it has also become an ideal coating for the inner layer of easy-to-clean water pipes.

[0003] The existing dust collector bags do not have the advantage of protection, which makes the dust collector bags prone to wear or cracking, reducing the service life of the dust collector bags, making them inconvenient to use, and reducing the efficiency and effect of the dust collector bags. The opening rate of the dust filter cloth used in traditional dust filter bags is very low, which makes the filtration wind speed of the dust filter cloth low, thereby making the dust removal efficiency of the dust filter bag low. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a highly weather-resistant PTFE dust filter bag, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a highly weather-resistant PTFE dust filter bag, comprising a filter bag body, the filter bag body comprising a base layer, an anti-corrosion layer is provided on the inner side of the base layer, and a fiber layer is provided on the outer side of the base layer, a polytetrafluoroethylene layer is provided on the outer side of the fiber layer, and a weather-resistant layer is provided on the outer side of the polytetrafluoroethylene layer, and a wear-resistant layer is provided on the outer side of the weather-resistant layer.

[0006] Preferably, the fiber layer is made of 100% PTFE fibers with a diameter of about 6.8 microns and a relative density of 0.68 grams per cubic centimeter as warp and weft, which are twisted into a grid shape through three strands and then carded and stacked.

[0007] Preferably, the anti-corrosion layer is an epoxy resin layer.

[0008] Preferably, the wear-resistant layer is an epoxy zinc-rich primer, an epoxy micaceous iron middle coating and an acrylic polyurethane outer coating which are sequentially coated from the inside to the outside.

[0009] Preferably, an annular plate is fixedly connected to the top of the filter bag body, and the material of the annular plate is aluminum alloy.

[0010] Preferably, an annular ring is sleeved on the surface of the filter bag body, and an arcuate ring is fixedly connected to the inner wall of the annular ring, and the filter bag body is connected to the arcuate ring by arranging a strap.

[0011] Beneficial effects

[0012] The utility model provides a highly weather-resistant PTFE dust filter bag. Compared with the prior art, the highly weather-resistant PTFE dust filter bag has the following beneficial effects: the filter bag body includes a base layer, an anti-corrosion layer is provided on the inner side of the base layer, a fiber layer is provided on the outer side of the base layer, a polytetrafluoroethylene layer is provided on the outer side of the fiber layer, a weather-resistant layer is provided on the outer side of the polytetrafluoroethylene layer, and a wear-resistant layer is provided on the outer side of the weather-resistant layer. The wear-resistant layer can make the bag body wear-resistant and avoid damage to the bag body due to wear. The weather-resistant layer can make the bag body heat-resistant and cold-resistant and avoid damage to the bag body due to temperature, thereby achieving the purpose of protecting the bag body. The fiber layer increases the softness of the dust filter cloth, so that the obtained dust filter cloth has a high filtration wind speed and an opening rate of up to 90%, thereby increasing the dust removal efficiency of the dust filter cloth bag and solving the problem of low dust removal efficiency of traditional dust filter cloth bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of the structure of the utility model;

[0014] Figure 2 This is a top view of the annular ring structure of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the filter bag body of the utility model.

[0016] In the figure: 1-filter bag body, 11-base layer, 12-anti-corrosion layer, 13-fiber layer, 14-polytetrafluoroethylene layer, 15-weather-resistant layer, 16-wear-resistant layer, 2-annular plate, 3-annular ring, 4-arc ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model provides a technical solution: a highly weather-resistant PTFE dust filter bag, comprising a filter bag body 1, the filter bag body 1 comprising a base layer 11, an anti-corrosion layer 12 is provided on the inner side of the base layer 11, and a fiber layer 13 is provided on the outer side of the base layer 11, a polytetrafluoroethylene layer 14 is provided on the outer side of the fiber layer 13, and a weather-resistant layer 15 is provided on the outer side of the polytetrafluoroethylene layer 14, and a wear-resistant layer 16 is provided on the outer side of the weather-resistant layer 15.

[0019] Specifically, the fiber layer 13 is composed of 100% PTFE fibers with a diameter of about 6.8 microns and a relative density of 0.68 grams per cubic centimeter as warp and weft, which are twisted into a grid shape through three strands and then carded and stacked.

[0020] Specifically, the anti-corrosion layer 12 is an epoxy resin layer.

[0021] Specifically, the wear-resistant layer 16 is an epoxy zinc-rich primer, an epoxy micaceous iron middle coating, and an acrylic polyurethane outer coating, which are sequentially coated from the inside to the outside.

[0022] Specifically, the top of the filter bag body 1 is fixedly connected with an annular plate 2, and the material of the annular plate 2 is aluminum alloy.

[0023] Specifically, an annular ring 3 is sleeved on the surface of the filter bag body 1 , and an arcuate ring 4 is fixedly connected to the inner wall of the annular ring 3 . The filter bag body 1 is connected to the arcuate ring 4 by a binding strap.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly weather-resistant PTFE dust filter bag, comprising a filter bag body (1), characterized in that: The filter bag body (1) comprises a base layer (11), an anti-corrosion layer (12) is provided on the inner side of the base layer (11), a fiber layer (13) is provided on the outer side of the base layer (11), a polytetrafluoroethylene layer (14) is provided on the outer side of the fiber layer (13), a weather-resistant layer (15) is provided on the outer side of the polytetrafluoroethylene layer (14), and a wear-resistant layer (16) is provided on the outer side of the weather-resistant layer (15).

2. The highly weather-resistant PTFE dust filter bag according to claim 1, characterized in that: The fiber layer (13) is made of 100% PTFE fibers with a diameter of about 6.8 microns and a relative density of 0.68 grams per cubic centimeter as warp and weft, which are twisted in three strands and then combed and stacked to form a grid.

3. The highly weather-resistant PTFE dust filter bag according to claim 1, characterized in that: The anti-corrosion layer (12) is an epoxy resin layer.

4. The highly weather-resistant PTFE dust filter bag according to claim 1, characterized in that: The wear-resistant layer (16) is an epoxy zinc-rich primer, an epoxy micaceous iron middle coat and an acrylic polyurethane outer coat, which are sequentially coated from the inside to the outside.

5. The highly weather-resistant PTFE dust filter bag according to claim 1, characterized in that: An annular plate (2) is fixedly connected to the top of the filter bag body (1), and the material of the annular plate (2) is aluminum alloy.

6. The highly weather-resistant PTFE dust filter bag according to claim 1, characterized in that: The surface of the filter bag body (1) is sleeved with an annular ring (3), and the inner wall of the annular ring (3) is fixedly connected with an arc ring (4), and the filter bag body (1) is connected to the arc ring (4) by arranging a strap.

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