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Glass fiber air filter paper with high dust holding capacity and production process thereof

An air filter paper, glass fiber technology, applied in filter paper, filtration separation, synthetic cellulose/non-cellulose material pulp/paper, etc., can solve the problems of short service life, low dust holding capacity, etc., achieve good mechanical strength, Low sizing concentration, good binding and interweaving effect

Active Publication Date: 2014-01-29
CHONGQING ZAISHENG TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary glass fiber air filter paper also has the disadvantages of low dust holding capacity and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Present embodiment produces the technique of high dust holding capacity glass fiber air filter paper, comprises the following steps:

[0022] (1) Raw material preparation: Take 5 parts of E-glass chopped strands and 95 parts of E-glass fiber cotton with a diameter of 0.3um;

[0023] (2) Dispersion pulping: Add the raw materials selected in step (1) into a disperser equipped with aqueous sulfuric acid solution for beating and dispersing for 12 minutes to obtain a slurry, and then adjust the pH value of the slurry to 3.0 by adjusting the amount of sulfuric acid and water, and the mass concentration To 1%, beating degree 54 ° SR in the present embodiment.

[0024] (3) Wet forming: transfer the slurry obtained in step (2) to the storage tank, add water to dilute to a mass concentration of 0.1% and adjust the pH to 2.9, and then use a centrifugal slag remover to remove the slag in the diluted slurry, Finally, the slurry in the storage tank is transported to the inclined wir...

Embodiment 2

[0030] Present embodiment produces the technique of high dust holding capacity glass fiber air filter paper, comprises the following steps:

[0031] (1) Raw material preparation: take 3 parts of E-glass fiber chopped strands and 97 parts of E-glass fiber cotton with a diameter of 0.35um;

[0032] (2) Dispersion pulping: Add the raw materials selected in step (1) into a disperser equipped with aqueous sulfuric acid solution to beat and disperse for 10 minutes to obtain a slurry, and then adjust the pH value of the slurry to 3.2 by adjusting the amount of sulfuric acid and water, and the mass concentration To 1.3%, beating degree 52 ° SR in the present embodiment.

[0033] (3) Wet molding: transfer the slurry obtained in step (2) to the storage tank, add water to dilute to a mass concentration of 0.13% and adjust the pH to 3.0, and then use a centrifugal slag remover to remove the slag in the diluted slurry, Finally, the slurry in the storage tank is transported to the inclined...

Embodiment 3

[0038] Present embodiment produces the technique of high dust holding capacity glass fiber air filter paper, comprises the following steps:

[0039] (1) Raw material preparation: Take 7 parts of E-glass chopped strands and 93 parts of E-glass fiber cotton with a diameter of 0.4um;

[0040] (2) Dispersion pulping: Add the raw materials selected in step (1) into a disperser equipped with aqueous sulfuric acid solution to beat and disperse for 15 minutes to obtain a slurry, and then adjust the pH value of the slurry to 2.9 by adjusting the amount of sulfuric acid and water, and the mass concentration To 1.5%, beating degree 56 ° SR in the present embodiment.

[0041] (3) Wet forming: transfer the slurry obtained in step (2) to the storage tank, add water to dilute to a mass concentration of 0.15% and adjust the pH to 2.8, and then use a centrifugal slag remover to remove the slag in the diluted slurry, Finally, the slurry in the storage tank is transported to the inclined wire for...

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Abstract

The invention discloses glass fiber air filter paper with high dust holding capacity, which is prepared from alkali-free glass fiber chopped strands and alkali-free glass fiber cotton in the diameter of 0.3-0.4 mu m, as well as an adhesive, wherein the glass fiber air filter paper comprises 3-8 parts by weight of the alkali-free glass fiber chopped strands and 92-97 parts by weight of the alkali-free glass fiber cotton, and the adhesive is a water repellent containing fluorocarbon. The invention further discloses a production process of the glass fiber air filter paper with the high dust holding capacity, and the production process comprises the following steps: firstly beating and dispersing raw material to obtain pulp, then performing wet process forming on the pulp to obtain wet paper, removing water in the wet paper, then performing two-sided sizing on the dehydrated wet paper, and finally drying to obtain a product, wherein the beating degree during beating is 52-56 degrees SR, suction dehydration is performed in three stages, and drying treatment is performed in four stages. The glass fiber air filter paper disclosed by the invention has the advantages of smooth and uniform surface, large specific surface area and dust holding capacity, high mechanical strength and resistance to acid and alkali corrosion.

Description

technical field [0001] The invention belongs to the field of air filtration, and relates to an air filter component, in particular to a glass fiber air filter paper with a high dust holding capacity and a process for producing the glass fiber air filter paper with a high dust holding capacity. Background technique [0002] Air filters are widely used, but the air filters widely used at present have the disadvantages of low dust holding capacity, short service life, and troublesome replacement procedures. The main reason for the above problems is that the filter paper used in the filter has poor filtration performance. Poor, low dust holding capacity. Glass fiber air filter paper is made of glass fiber as the main raw material. It is generally made by wet forming process. It has the characteristics of uniform fiber distribution, low resistance and high strength. It is an ideal air filter material. However, ordinary glass fiber air filter paper also has the disadvantages of l...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H13/40D21H21/16
Inventor 秦大江郭茂
Owner CHONGQING ZAISHENG TECH CORP
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