Anti-fouling flat filament dry net

Abstract

The utility model discloses an anti-fouling flat filament dry net, which relates to the technical field of papermaking equipment and comprises an anti-fouling layer, an isolating layer and a bearing layer which are sequentially arranged from outside to inside, the anti-fouling layer, the isolating layer and the bearing layer are integrally woven, a mesh structure formed by warp and weft weaving is arranged on the anti-fouling layer, and the bearing layer is arranged on the isolating layer. The exteriors of the warps and the wefts of the anti-fouling layer are coated with Teflon coatings; the isolating layer is of a fine triangular reticulate pattern structure formed by weaving warps and wefts, the warps and the wefts of the isolating layer are arranged in a manner that anti-hydrolysis monofilaments and elastic polyester are alternately arranged, and the bearing layer is of a twill reticulate pattern structure formed by weaving warps and wefts. According to the anti-fouling flat filament dry net, through the combined action of the anti-fouling layer, the isolating layer and the bearing layer, the problems that in the prior art, a dry net is prone to being blocked by stains, the air permeability is reduced, and the paper quality is affected are effectively solved, the production efficiency is improved, the production failure rate is reduced, and the anti-fouling flat filament dry net has remarkable practical value and wide application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to an anti-fouling flat wire dryer fabric. Background Art

[0002] Flat wire dryer fabric is a key auxiliary equipment in the papermaking process. It is mainly used to support and dehydrate wet paper sheets in the drying cylinder section of the papermaking machine. When the wet paper sheets enter the drying section, the thermoplastic adhesives contained in them will gradually soften and melt under the action of the high temperature of the drying cylinder, and then adhere to the dryer fabric and the surface of the drying cylinder. In addition, dust, paper fibers, oil, ink, collagen and other impurities will be generated during the paper machine production process. These impurities will adhere to the dryer fabric and continue to accumulate over time, seriously affecting the air permeability of the dryer fabric, thereby reducing dehydration efficiency, lowering paper quality, increasing production costs and making equipment maintenance more difficult.

[0003] Therefore, it is necessary to propose an anti-fouling flat wire dryer fabric to solve the above problems. Utility Model Content

[0004] Technical problem to be solved: The purpose of the present utility model is to provide a stain-resistant flat wire dryer fabric to solve the problem of the existing flat wire dryer fabric proposed in the above background technology. When the wet paper sheets enter the drying section, the thermoplastic adhesives contained therein will gradually soften and melt under the action of the high temperature of the drying cylinder, and then adhere to the dryer fabric and the surface of the drying cylinder. In addition, dust, paper fibers, oil, ink, collagen and other impurities will be generated during the paper machine production process. These impurities will adhere to the dryer fabric body and continue to accumulate over time, seriously affecting the air permeability of the dryer fabric, thereby reducing the dehydration efficiency, reducing the paper quality, and increasing production costs and the difficulty of equipment maintenance.

[0005] Technical solution: To achieve the above purpose, the utility model is implemented through the following technical solution: an anti-fouling flat wire dryer net, comprising an anti-fouling layer, an isolation layer and a bearing layer arranged in sequence from the outside to the inside, the anti-fouling layer, the isolation layer and the bearing layer are woven together, the anti-fouling layer is provided with a mesh structure formed by weaving warp and weft, and the warp and weft of the anti-fouling layer are coated with Teflon coating on the outside; the isolation layer is a fine herringbone mesh structure woven by warp and weft, and the warp and weft of the isolation layer are arranged in an alternating manner of hydrolysis-resistant monofilament and elastic polyester, and the bearing layer is a twill mesh structure woven by warp and weft.

[0006] Preferably, the warp and weft of the anti-fouling layer are both polyester monofilaments, and the diameter of the polyester monofilament is 0.4 mm.

[0007] Preferably, the warp and weft of the bearing layer are both nylon monofilaments, and the nylon monofilaments are 0.4 mm in diameter, and the diameters of the hydrolysis-resistant monofilaments and the elastic polyester are both 0.3 mm.

[0008] Beneficial effects: Compared with the prior art, the utility model provides an anti-fouling flat wire dryer net, which has a unique structure and is easy to use. On the one hand, a mesh structure is provided on the anti-fouling layer, and a Teflon coating is sprayed on the warp and weft of the anti-fouling layer, so that the air permeability and anti-fouling ability of the anti-fouling layer are greatly enhanced. On the other hand, by weaving anti-hydrolysis monofilament and elastic polyester into an isolation layer with a tight structure, the penetration of stains can be further blocked. In addition, the bearing layer woven from nylon monofilament has high strength and high wear resistance. Through the joint action of the anti-fouling layer, the isolation layer and the bearing layer, the problems in the prior art such as the dryer net being easily clogged by stains, reduced air permeability, and affected paper quality are effectively solved, the production efficiency is improved, and the production failure rate is reduced. It has significant practical value and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the weaving structure of the isolation layer of the utility model;

[0011] Figure 3 This is a cross-sectional schematic diagram of the polyester monofilament structure of the present invention.

[0012] In the figure: 1. Anti-fouling layer; 11. Polyester monofilament; 12. Teflon coating; 2. Isolation layer; 21. Hydrolysis-resistant monofilament; 22. Elastic polyester; 3. Load-bearing layer. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Example 1: This example 1 provides an anti-fouling flat wire dryer net, which is directly improved on the existing flat wire dryer net and has a unique structure. Figure 1-3 As shown, it includes an anti-fouling layer 1, an isolation layer 2 and a supporting layer 3 arranged in sequence from the outside to the inside. The anti-fouling layer 1, the isolation layer 2 and the supporting layer 3 are woven together. The anti-fouling layer 1 is provided with a mesh structure formed by warp and weft weaving, and the warp and weft of the anti-fouling layer 1 are coated with Teflon coating 12 on the outside; the warp and weft of the anti-fouling layer 1 are both polyester monofilaments 11, and the diameter of the polyester monofilament 11 is 0.4 mm. By arranging the mesh structure on the anti-fouling layer 1, on the one hand, the air circulation is smoother, which helps to improve the air permeability of the flat wire dryer mesh. Good air permeability can promote the rapid evaporation of moisture in the wet paper sheets, thereby improving the drying speed and dehydration efficiency of the paper.

[0015] On the other hand, the mesh structure makes it easier to remove dirt and impurities, and water and detergent can penetrate deeper into the mesh during cleaning, thereby improving cleaning efficiency. In addition, since the polyester monofilament 11 is coated with a Teflon coating 12 on the outside, it is difficult for stains to adhere to the anti-fouling layer 1, further improving the cleaning effect. The isolation layer 2 is a fine herringbone mesh structure woven by warp and weft, and the warp and weft of the isolation layer 2 are arranged in an alternating manner using hydrolysis-resistant monofilaments 21 and elastic polyester 22. The supporting layer 3 is a twill mesh structure woven by warp and weft. The warp and weft of the supporting layer 3 are both nylon monofilaments, and the nylon monofilament is 0.4 mm thick and anti-fouling. The diameters of the hydrolyzed monofilament 21 and the elastic polyester 22 are both 0.3 mm. The surfaces of the hydrolysis-resistant monofilament 21 and the elastic polyester 22 are relatively smooth, which can effectively prevent the adhesion and penetration of stains. In addition, since the elastic polyester 22 has good elasticity and flexibility, it can not only adapt to different shape and size changes, but also, due to its elastic properties, it can form a relatively tight structure when weaving, thereby further preventing the penetration of stains; nylon not only has high tensile strength and can withstand greater mechanical stress, but also has excellent wear resistance and can withstand long-term friction and wear, and is suitable for use in high-strength and high-load papermaking environments.

[0016] Working principle: The flat wire dryer mesh is composed of an anti-fouling layer 1, an isolation layer 2 and a supporting layer 3, which are arranged in sequence from the outside to the inside and woven together. The anti-fouling layer 1 is provided with a mesh structure formed by weaving the warp and weft of polyester monofilaments 11, and the outside of the polyester monofilaments 11 is coated with a Teflon coating 12. In the drying cylinder part of the papermaking machine, the wet paper sheets run under the support of the dryer mesh. Due to the presence of the mesh structure, the air circulation is smoother, which helps to improve the air permeability of the flat wire dryer mesh. Good air permeability can promote the rapid evaporation of moisture in the wet paper sheets, thereby improving the drying speed and dehydration efficiency of the paper. At the same time, the mesh structure makes it easier for dirt and impurities to be removed by the high-pressure cleaning device on the equipment. During cleaning, water and detergent can penetrate deeper into the mesh, improving the cleaning efficiency. The addition of Teflon coating 12 makes it difficult for stains to adhere to the anti-fouling layer 1, further improving the cleaning effect and reducing the reduced air permeability of the dryer mesh and paper quality problems caused by stain accumulation.

[0017] The isolation layer 2 is a fine, herringbone-shaped mesh structure woven from warp and weft. The warp and weft threads are arranged in an alternating pattern of hydrolysis-resistant monofilaments 21 and elastic polyester 22. The surfaces of the hydrolysis-resistant monofilaments 21 and the elastic polyester 22 are relatively smooth, which can effectively prevent the adhesion and penetration of stains. Moreover, due to the elastic properties of the elastic polyester 22, a relatively tight structure can be formed during weaving, thereby further blocking the penetration of stains and preventing stains from penetrating from the isolation layer 2 to the supporting layer 3 and affecting the performance of the entire dryer fabric. In addition, the flexibility of the elastic polyester 22 enables it to adapt to different shapes and sizes, ensuring the stability and reliability of the dryer fabric during operation.

[0018] The bearing layer 3 is a twill mesh structure woven by warp and weft. Nylon not only has high tensile strength and can withstand large mechanical stress, ensuring the normal use of the dryer fabric in a high-intensity and high-load papermaking environment, but also has excellent wear resistance and can withstand long-term friction and wear, thereby extending the service life of the dryer fabric and reducing production costs.

[0019] 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. An anti-fouling flat yarn dryer fabric, comprising an anti-fouling layer (1), an isolation layer (2) and a bearing layer (3) arranged in sequence from the outside to the inside, characterized in that: The anti-fouling layer (1), the isolation layer (2) and the bearing layer (3) are woven together as a whole. The anti-fouling layer (1) is provided with a mesh structure formed by weaving warp and weft, and the warp and weft of the anti-fouling layer (1) are coated with a Teflon coating (12) on the outside. The isolation layer (2) is a fine herringbone mesh structure woven by warp and weft, and the warp and weft of the isolation layer (2) are arranged in an alternating manner by arranging hydrolysis-resistant monofilaments (21) and elastic polyester (22). The bearing layer (3) is a twill mesh structure woven by warp and weft.

2. The anti-fouling flat dryer fabric according to claim 1, characterized in that: The warp and weft of the anti-fouling layer (1) are both polyester monofilaments (11), and the diameter of the polyester monofilaments (11) is 0.4 mm.

3. The anti-fouling flat dryer fabric according to claim 1, characterized in that: The warp and weft of the bearing layer (3) are both nylon monofilaments, and the nylon monofilaments are 0.4 mm in diameter. The diameters of the hydrolysis-resistant monofilaments (21) and the elastic polyester (22) are both 0.3 mm.

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