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Wound filter element and application thereof

A winding type filter element and filter element technology, applied in the direction of filtration separation, gravity filter, chemical instruments and methods, etc., can solve problems such as inapplicability

Inactive Publication Date: 2014-06-25
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN201283253Y discloses an anti-unwinding filter element, which is suitable for sewage filtration, adopts roving formed by air spinning, and proposes to improve the filtering effect by increasing the twist of the roving, but there is no specific solution, and the fiber raw material used Cotton and chemical fiber are not suitable for filtering high-temperature strong acid-alkaline liquids such as boiler return water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Using single fiber fineness of 3dtex and fiber length of 51mm PPS short fiber (Tony Fiber from Toray Company) is used to obtain carded tops on a woolen carding machine to make fiber threads, and then draw 4 fiber threads. A roving with an apparent fineness of 3.8Nm is obtained, and then twisted to obtain a roving with a twist coefficient of 240. The elongation of the roving is 29%. The hairiness on the surface of the roving is 0.5-100mm, which accounts for the total number of hairiness on the surface of the roving. 60%; the above roving is wound in a cross spiral on a cylinder made of a metal plate with small holes on the surface to form a filter layer with a thickness of 2cm to obtain the wound filter element of the present invention, the outermost yarn and The angle of the axis of the porous aggregate is 60°. The filter element is used to filter the 85°C return water produced by the boiler, and the pressure loss is tested, and the pressure loss is low, specifically 0.2...

Embodiment 2

[0026] Using single fiber fineness of 3dtex, fiber length of 51mm PPS short fiber (Tony Fiber from Toray Company) is used to obtain carded sliver to make fiber thread by woolen carding machine, and then two fiber threads are drawn. A roving with an apparent fineness of 3.8Nm is obtained, and then twisted to obtain a roving with a twist coefficient of 210. The elongation of the roving is 25%. The hairiness on the surface of the roving is 0.5-100mm, which accounts for the total number of hairiness on the surface of the roving. 80%; the above roving is wound in a cross spiral on a cylinder made of a metal plate with small holes on the surface to form a filter layer with a thickness of 2cm to obtain the wound filter element of the present invention, the outermost yarn and The angle of the axis of the porous aggregate is 65°. The filter element is used to filter the 85°C return water produced by the boiler, and the pressure loss is tested, and the pressure loss is lower, specificall...

Embodiment 3

[0028] Use the PPS trilobal cross-section short fiber with a single fiber fineness of 6dtex and a fiber length of 72mm to obtain a carded sliver through a woolen carding machine to obtain a fiber thread, and then draw the 6 fiber threads to obtain the apparent fineness The roving with a degree of 1Nm is twisted to obtain a roving with a twist coefficient of 220. The elongation of the roving is 25%. The hairiness on the surface of the roving is 0.5-100mm, which accounts for 30% of the total number of hairiness on the surface of the roving. The roving is wound in a cross spiral on a cylinder made of a metal plate with small holes on the surface to form a filter layer with a thickness of 3 cm to obtain the wound filter element of the present invention. The outermost layer of yarn is aligned with the axis of the porous aggregate. The angle is 55°. The filter element is used to filter the 85°C return water produced by the boiler, and the pressure loss is tested, and the pressure los...

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Abstract

The invention discloses a wound filter element and application thereof. The wound filter element comprises a porous aggregate and a rough yarn wound on the porous aggregate, wherein the rough yarn contains polyphenylene sulfide fibre, has a coefficient of twist of 180-280, has excellent bulkiness and better filtering property, and can not be excessively drafted during the winding. The wound filter element disclosed by the invention has the characteristics of small pressure loss, high filtering accuracy, and excellent steaming resistance and chemical properties, and can be applied to the field of filtration of various kinds of high-temperature liquids.

Description

Technical field [0001] The invention relates to a winding filter element and its application, in particular to a winding filter element used in the field of high-temperature liquid filtration and its application. Background technique [0002] The wound filter element is a kind of filter element for deep filtration. It is used for low-viscosity and low-impurity filtration. It is made of textile fiber thread and precisely wound on the porous aggregate according to a specific process. It has a honeycomb shape with sparse outside and dense inside. The structure, forming numerous three-dimensional small holes, can effectively remove suspended solids, particles, rust and other impurities in the fluid, and has very good filtering characteristics. It is widely used in the filtration of tap water, beverages, industrial water, domestic water, electroplating liquid, chemical liquid, oil, paint, etc. [0003] Currently commercially available wound filter cartridges use polypropylene yarns and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/16B01D29/31
Inventor 刘晶山本英行
Owner TORAY IND INC
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