Preparation method of filtering membrane used for industrial air filter

An air filter and filter membrane technology, which is applied in chemical instruments and methods, separation methods, dispersed particle filtration, etc. At the same time, problems such as hydrophobicity and oleophobicity are achieved, which facilitates commercial mass production, optimizes physical and chemical properties, and improves product quality.

Inactive Publication Date: 2017-12-26
江苏华强新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although traditional filter membranes have high filtration efficiency for particles above the micron level, it is difficult to effectively filter submicron particles. At the same time, the fiber filter membranes sold on the market generally cannot filter dust and oily particles at the same time. The main reason is that the filter membrane generally cannot achieve the effect of hydrophobic and oleophobic at the same time. Studies have shown that the filtration efficiency of the fiber filter membrane will increase significantly with the decrease of the fiber diameter. Therefore, reducing the fiber diameter has become an effective way to improve the fiber filter membrane. ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The present embodiment provides a kind of preparation method of filter membrane for industrial air filter, the preparation method of this filter membrane comprises the following steps:

[0054] (1) Preparation of ceramic binder

[0055] Mix water-based hydroxyacrylic resin, kaolin, silica sand, silicon dioxide, dispersant, calcium carbonate, coupling agent, thickener and compound rare earth evenly, and then perform ball milling for 30 hours at a ball milling speed of 400t / min. Put it in a drying oven and dry it at 50°C, grind it into powder, and then get the ceramic binder powder;

[0056] In step (1), the ceramic binder includes the following components in parts by mass:

[0057] Water-based hydroxyacrylic resin: 30 parts, kaolin: 20 parts, silica sand: 10 parts, silicon dioxide: 10 parts, dispersant: 5 parts, calcium carbonate: 1 part, coupling agent: 4 parts, thickener: 3 parts , compound rare earth: 0.1 part;

[0058] The composite rare earth contains the followi...

Embodiment 2

[0081] The present embodiment provides a kind of preparation method of filter membrane for industrial air filter, the preparation method of this filter membrane comprises the following steps:

[0082] (1) Preparation of ceramic binder

[0083] Mix water-based hydroxyacrylic resin, kaolin, silica sand, silicon dioxide, dispersant, calcium carbonate, coupling agent, thickener and compound rare earth, and then perform ball milling for 35 hours at a ball milling speed of 450t / min. Put it in a drying box and dry it at 50-60°C, grind it into powder, and then get the ceramic binder powder;

[0084] In step (1), the ceramic binder includes the following components in parts by mass:

[0085] Water-based hydroxyacrylic resin: 40 parts, kaolin: 25 parts, silica sand: 15 parts, silicon dioxide: 13 parts, dispersant: 7 parts, calcium carbonate: 3 parts, coupling agent: 6 parts, thickener: 5 parts , compound rare earth: 0.3 parts;

[0086] The composite rare earth contains the following ...

Embodiment 3

[0109] The present embodiment provides a kind of preparation method of filter membrane for industrial air filter, the preparation method of this filter membrane comprises the following steps:

[0110] (1) Preparation of ceramic binder

[0111] Mix water-based hydroxyacrylic resin, kaolin, silica sand, silicon dioxide, dispersant, calcium carbonate, coupling agent, thickener and compound rare earth evenly, and then perform ball milling for 33 hours at a ball milling speed of 420t / min. Put it in a drying oven and dry it at 55°C, grind it into powder, and then get the ceramic binder powder;

[0112] In step (1), the ceramic binder includes the following components in parts by mass:

[0113] Water-based hydroxyacrylic resin: 35 parts, kaolin: 22 parts, silica sand: 10-15 parts, silicon dioxide: 12 parts, dispersant: 6 parts, calcium carbonate: 2 parts, coupling agent: 5 parts, thickener: 4 parts, compound rare earth: 0.2 parts;

[0114] The composite rare earth contains the fol...

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Abstract

The invention discloses a preparation method of a filtering membrane used for an industrial air filter. The preparation method of the filtering membrane includes the following steps that 1, ceramic adhesive is prepared; 2, a sodium carboxymethylcellulose solution is prepared; 3, a composite supporting body is prepared; 4, a ceramic fiber transition layer is prepared; 5, the filtering membrane is prepared. The preparation method is simple and easy to implement, the preparation technology has high anti-fake performance, the prepared filtering membrane is uniform in structure, and has good high temperature resistance, high pressure resistance and chemical stability, filtering pressure is reduced, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of daily chemical filtration, and in particular relates to a preparation method of a filter membrane for an industrial air filter. Background technique [0002] Air is the guarantee for maintaining life. The air contains a large amount of harmful gases and fine suspended particles, which will cause serious harm to the respiratory tract, cardiovascular system and central nervous system of human respiratory immune function. Reducing the emission of suspended particles in the air is harmful to the environment. It is very important to protect and guarantee human health. At present, with the rapid development of industry, the human living environment is constantly being challenged, one of which is air pollution; at the same time, modern science and modern industry, especially electronics, precision instruments, metallurgy, etc. The development of industries such as aerospace, nuclear energy, and chemical industry...

Claims

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Application Information

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IPC IPC(8): B01D67/00B01D69/12B01D46/54B01D53/22
CPCB01D46/543B01D53/228B01D67/0079B01D67/0095B01D69/12
Inventor 冷祥珠龚圣杰王伟江训林
Owner 江苏华强新能源科技有限公司
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