Preparation method for ECR (e-glass of chemical resistance) glass fiber filter cloth

A technology of glass fiber and glass fiber yarn is applied in the field of preparation of ECR ​​glass fiber filter cloth, which can solve the problems of poor corrosion resistance of strong acid and narrow application range, and achieve good temperature resistance, improve filtering effect, and improve coating effect. Effect

Active Publication Date: 2015-06-17
SICHUAN FIBERGLASS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, the glass fiber filter cloth in this patent can only resist the corrosion of general concentration of acid and alkali, but cannot resist the corrosion of strong acids such as concentrated sulfuric acid, concentrated hydrochloric acid, hydrofluoric acid, etc., and has poor corrosion resistance to strong acids and Disadvantages of narrow scope of application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method for ECR (e-glass of chemical resistance) glass fiber filter cloth
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  • Preparation method for ECR (e-glass of chemical resistance) glass fiber filter cloth

Examples

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Effect test

Embodiment 1

[0034] A preparation method of ECR ​​glass fiber filter cloth, comprising the following steps:

[0035] a. Warp beam preparation, the ECR glass fiber yarns used for warp yarns are arranged on the warp beam pan head used for weaving through the warping machine;

[0036] b. Weft yarn bulking, the ECR glass fiber yarn used for weft yarn is expanded and loosened through the bulky yarn machine. The specific process is to make the strands of ECR ​​glass fiber yarn tow pass through a compressed air nozzle with a pressure of 0.4mpa at a speed of 250 meters per minute;

[0037] c, weaving gray cloth, the prepared warp yarn and weft yarn are woven into filter base cloth by loom;

[0038] d. Thermal cleaning, pass the filter base cloth through the boiling hot water in the thermal cleaning unit at a speed of 3m / min for thermal cleaning, and then pass through the hot air at 380°C at the same speed to burn to remove 70% of the surface of the filter base cloth. % of wetting agent;

[0039]...

Embodiment 2

[0054] A preparation method of ECR ​​glass fiber filter cloth, comprising the following steps:

[0055] a. Warp beam preparation, the ECR glass fiber yarns used for warp yarns are arranged on the warp beam pan head used for weaving through the warping machine;

[0056] b. Weft yarn bulking, the ECR glass fiber yarn used for weft yarn is expanded and loosened through the bulky yarn machine. The specific process is to make the strands of ECR ​​glass fiber yarn tow pass through a compressed air nozzle with a pressure of 0.4mpa at a speed of 260 meters per minute;

[0057] c, weaving gray cloth, the prepared warp yarn and weft yarn are woven into filter base cloth by loom;

[0058] d. Thermal cleaning, pass the filter base cloth through the boiling hot water in the thermal cleaning unit at a speed of 4m / min for thermal cleaning, and then pass through the hot air at 390°C at the same speed to burn to remove 70% of the surface of the filter base cloth. % of wetting agent;

[0059]...

Embodiment 3

[0073] A preparation method of ECR ​​glass fiber filter cloth, comprising the following steps:

[0074] a. Warp beam preparation, the ECR glass fiber yarns used for warp yarns are arranged on the warp beam pan head used for weaving through the warping machine;

[0075] b. Weft yarn bulking, the ECR glass fiber yarn used for weft yarn is expanded and loosened through the bulky yarn machine. The specific process is to make the strands of ECR ​​glass fiber yarn tow pass through a compressed air nozzle with a pressure of 0.4mpa at a speed of 280 meters per minute;

[0076] c, weaving gray cloth, the prepared warp yarn and weft yarn are woven into filter base cloth by loom;

[0077] d. Thermal cleaning, pass the filter base cloth through the boiling hot water in the thermal cleaning unit at a speed of 7m / min for thermal cleaning, and then pass through the hot air at 410°C at the same speed to burn to remove 70% of the surface of the filter base cloth. % of wetting agent;

[0078]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method for ECR (e-glass of chemical resistance) glass fiber filter cloth. The preparation method comprises the following steps: a, arranging warp yarns on a weaving warp beam disk head through a warping machine; b, bulking and loosening weft yarns through a bulked yarn machine; c, weaving the prepared warp yarns and weft yarns into filter base cloth through a weaving machine; d, enabling the filter base cloth to pass through boiling hot water in a hot cleaning machine unit at a speed of 3-8 m/min for performing hot cleaning, and then enabling the filter base cloth to pass through hot air with a temperature of 380-420 DEG C at the same speed for performing combustion; e, coating the filter base cloth with a surface treatment agent; f, drying the filter base cloth coated with the surface treatment agent, and finally obtaining the ECR glass fiber filter cloth. Therefore, the glass fiber filter cloth can resist corrosion of strong-acid substances such as concentrated sulfuric acid, concentrated hydrochloric acid, hydrofluoric acid and the like, and the rigid strength, high temperature resistance and filtering effect of the glass fiber filter cloth also can be improved.

Description

technical field [0001] The invention relates to a glass fiber filter cloth, in particular to a preparation method of an ECR glass fiber filter cloth. Background technique [0002] Glass fiber filter material is widely used because of its high strength, stable size, high temperature resistance and high filtration efficiency, but glass fiber also has obvious disadvantages, that is, the fiber is brittle, not resistant to folding, not wear-resistant, and easily corroded by acid , These shortcomings have seriously affected the service life of the glass fiber filter material. [0003] In the prior art, after the glass fiber filter cloth is made, it is usually treated with a surface treatment agent to improve the overall performance of the glass fiber filter cloth and prolong the service life of the filter cloth. For example, the Chinese patent number is "201210276805.X The prior art of "disclosed a kind of glass fiber filter cloth surface treatment agent and glass fiber filter cl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08D03D15/00D06B3/10D06B15/00D06M15/256D06M15/564D03D15/267D03D15/44D03D15/50D03D15/513
Inventor 李军康明杜学勤
Owner SICHUAN FIBERGLASS GRP
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