CN210448369U

CN210448369U - High-stiffness multifilament filter cloth

Info

Publication number: CN210448369U
Application number: CN201920676475.0U
Authority: CN
Inventors: 王洪榜; 闫燕; 关伟; 郭瑞; 张秋娥; 刘军键
Original assignee: Yantai Xinghe Filtering Technology Co ltd
Current assignee: Yantai Xinghe Filtering Technology Co ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-05-05
Anticipated expiration: 2029-05-13

Abstract

The utility model provides a high-stiffness multifilament filter cloth which is woven by warps and wefts, and is characterized in that the warps are 2890dtex multifilaments; the weft is formed by twisting six 1440dtex multifilaments two by two to form three strands, the core is formed by twisting three strands, the three 1440dtex multifilaments are coated outside the core, and the twisting direction of the core is opposite to the coating direction of the multifilaments. Compared with the prior art, the utility model discloses fully develop the respective advantage of multifilament raw materials filter cloth, monofilament raw materials filter cloth, overcome the respective shortcoming of multifilament raw materials filter cloth, monofilament raw materials filter cloth, can realize the pair unity of deflection and filter fineness.

Description

High-stiffness multifilament filter cloth

Technical Field

The utility model relates to a solid-liquid separation technical field specifically is a high straight multifilament filter cloth.

Background

In a vacuum filter and a filter press in the chemical industry, filter cloth is an important part, and solid-liquid separation of materials is realized through the filter cloth.

The existing woven industrial filter cloth is mainly divided into staple fiber raw material filter cloth, multifilament raw material filter cloth, monofilament raw material filter cloth and monofilament and multifilament interweaved filter cloth. Each silk thread of the multifilament raw material filter cloth consists of a plurality of monofilament fibers to form a fiber bundle, which is beneficial to filter cloth cake removal and has high filtering precision, but has the defects that gaps among the fibers can adsorb fine filtering particles in the filtering process to cause blockage, the stiffness is low, and the filter cloth is easy to wrinkle and deflect, so that the filtering equipment cannot normally run; the monofilament raw material filter cloth is cylindrical with smooth and clean monofilament surface, and the fabric is completely formed by interweaving individual monofilaments, so that the fabric is stiff and difficult to fold, has smooth and clean surface after press polishing, is difficult to block, and is easy to strip filter cakes. But has the disadvantages of low filtration precision and poor adhesion of solid filter residue due to the smooth surface of the fabric.

Disclosure of Invention

The utility model aims at providing a multifilament filter cloth that not only has higher filter fineness, has higher deflection moreover, and the technical scheme who takes is:

the high-stiffness multifilament filter cloth is formed by weaving warps and wefts, and is characterized in that the warps are 2890dtex multifilaments; the weft is formed by twisting six 1440dtex multifilaments two by two to form three strands, the core is formed by twisting three strands, the three 1440dtex multifilaments are coated outside the core, and the twisting direction of the core is opposite to the coating direction of the multifilaments. Six 1440dtex multifilament two by two forms the triplex after twisting becomes a branch body equivalent to monofilament intensity and stiffness, and three components of a whole body of bigger cylindric of twisting again, and whole diameter can reach more than 0.5mm, therefore the fabric is stiff, is difficult for the fold, and outside reverse cladding multifilament makes this whole circularity higher, and keeps the higher filtration precision of multifilament. Meanwhile, the warp is still multifilament, so that the filtering precision of the filter cloth is maintained at a higher level.

Further, the core is twisted in the same direction. The strength of the weft can be increased by twisting in the same direction, and the stiffness of the filter cloth is further increased.

Compared with the prior art, the utility model discloses fully develop the respective advantage of multifilament raw materials filter cloth, monofilament raw materials filter cloth, overcome the respective shortcoming of multifilament raw materials filter cloth, monofilament raw materials filter cloth, can realize the pair unity of deflection and filter fineness.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the weft of the present invention.

Detailed Description

The high-stiffness multifilament filter cloth shown in the figures 1-2 is formed by weaving warps 1 and wefts 2, wherein the warps are 2890dtex multifilaments; the weft 2 is formed by twisting six 1440dtex multifilaments two by two to form three strands, the three strands are twisted to form a core 21, the three 1440dtex multifilaments 22 are wrapped outside the core 21, the core 21 is twisted in the same direction, and the twisting direction of the core 21 is opposite to the wrapping direction of the multifilaments 22. Thus, the weft is thicker and stronger than the warp, the surface of the weft is rough after twisting, the roughness is reduced after coating, and the material is easy to remove. Because the coated multifilament can generate the state of being in the same direction as the warp, the coated yarn of the weft can be embedded and interwoven with the multifilament of the warp, so that the friction force between the warp and the weft of the filter cloth is large, and the change of the filtering precision caused by the displacement is not easy to occur; meanwhile, the filter cloth has high stiffness after high-temperature shaping, and the anti-wrinkle capability is greatly improved.

Claims

1. A high-stiffness multifilament filter cloth is formed by weaving warps (1) and wefts (2), and is characterized in that the warps (1) are 2890dtex multifilaments; the weft (2) is formed by twisting six 1440dtex multifilaments two by two to form three strands, the three strands are twisted to form a core (21), the three 1440dtex multifilaments (22) are wrapped outside the core (21), and the twisting direction of the core (21) is opposite to the wrapping direction of the multifilaments (22).

2. A high stiffness multifilament filter cloth according to claim 1, characterised in that the core (21) is twisted in the same direction.