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Functional ceramic fiber air filter element and preparation method thereof

A ceramic fiber and air filter technology, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of solid waste pollution, reduced adsorption efficiency, high replacement frequency, etc., achieve antibacterial negative ion concentration, increase negative ion concentration , High filtering effect

Inactive Publication Date: 2019-11-19
JIANGXI BOCENT TEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional filter paper, polyester fiber or glass fiber plus activated carbon adsorbent air filter has single function, unsatisfactory purification efficiency and many problems: First, whether it is filter paper, polyester fiber or glass fiber, as a filter material, on the one hand, it is water-resistant , poor corrosion resistance and wear resistance. On the other hand, the stiffness is not ideal. When the air intake is large, the filter material is easy to collapse and damage; secondly, the filter paper, polyester fiber and glass fiber have low porosity and dust holding capacity. Small, high frequency of replacement; Finally, there are many problems in using activated carbon as an adsorbent to adsorb and purify harmful gases in the air. , the air filter element with activated carbon and filter paper or polyester fiber as the filter material has flammable hazards and poor safety factor; third, activated carbon has low adsorption efficiency (<85%) for VOCs and high replacement frequency, which is a hazardous waste material. The environment is not friendly, but it brings solid waste pollution when solving the air pollution problem

Method used

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  • Functional ceramic fiber air filter element and preparation method thereof
  • Functional ceramic fiber air filter element and preparation method thereof
  • Functional ceramic fiber air filter element and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a. Add high silicon molecular sieve ZSM-5 and negative ion powder with a particle size of 10 μm into the silica sol with a concentration of 20% in a ratio of 15:1 by weight, and control the mass percentage of high silicon molecular sieve ZSM-5 and negative ion powder in the glue to be 20%, then add 0.55% sodium citrate (dispersant) and 0.2% polyether lipid defoamer by weight of the inorganic glue, stir and disperse evenly to obtain a viscous slurry,

[0029] b. Immerse 0.5mm high-purity ceramic fiber paper into the viscous slurry prepared in step a, and then obtain ceramic fiber paper with molecular sieve adsorbent and functional additives attached to it after dipping, pulling and scraping the film, heating, drying and curing process, ceramic Fiber paper density is 168kg / m 3 ,

[0030] c. Use an origami machine to fold the ceramic fiber paper into a pile of paper with a height of 20mm, use a glue line machine to glue and cut the pile of paper, and form the pile of cera...

Embodiment 2

[0033]a. Add high-silicon molecular sieve ZSM-5 and negative ion powder with a particle size of 5 μm to 25% silica sol at a ratio of 25:1, and control the mass percentage of high-silicon molecular sieve ZSM-5 and negative ion powder in the glue to 30 %, add 0.9% methylcellulose (dispersant) and 0.3% polyether lipid defoamer by weight of the inorganic glue in turn, stir and disperse evenly to prepare a viscous slurry,

[0034] b. Immerse 1 mm of high-purity ceramic fiber paper into the viscous slurry prepared in step a, and then obtain ceramic fiber paper and fiber paper with molecular sieve adsorbent and functional additives attached after dipping, pulling and scraping the film, heating, drying and curing process The density is 207kg / m 3 ,

[0035] c. Use an origami machine to fold the ceramic fiber paper into a pile of paper with a height of 15mm, use a glue line machine to glue and cut the pile of paper, and form the pile of ceramic fiber paper after cutting into a drum sha...

Embodiment 3

[0038] a. Add high-silicon Y-type molecular sieve with a particle size of 10 μm and silver ion antibacterial agent to 30% aluminum sol at a ratio of 50:1 to control the quality of high-silicon Y-type molecular sieve and silver ion antibacterial agent powder in the glue The percentage is 30%, add 0.7% polyvinyl alcohol (dispersant) and 0.1% organic silicon defoamer in sequence by the weight of the inorganic glue, stir and disperse evenly to make a viscous slurry,

[0039] b. Immerse 0.5mm high-purity ceramic fiber paper into the viscous slurry prepared in step a, and then obtain ceramic fiber paper with molecular sieve adsorbent and functional additives attached to it after dipping, pulling and scraping the film, heating, drying and curing processes, and the fiber Paper density is 225kg / m 3 ,

[0040] c. Use an origami machine to fold the ceramic fiber paper into a pile of paper with a height of 20mm, use a glue line machine to glue and cut the pile of paper, and form the pile...

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Abstract

The invention discloses a functional ceramic fiber air filter element and a preparation method thereof. The functional ceramic fiber air filter element has a drum-shaped or plate-shaped shape. The preparation method comprises the following steps: a, preparing a slurry: adding a high-silica molecular sieve adsorbent and a functional additive into an inorganic glue solution, and performing stirringfor uniform dispersion in order to obtain a viscous slurry; b, coating with the slurry: immersing a ceramic fiber paper in the viscous slurry, performing dip-coating knifing, and then performing heating drying curing to obtain a ceramic fiber paper coated with the high-silica molecular sieve adsorbent and the functional additive; c, folding and shaping: folding the ceramic fiber paper to form a paper pile, and gluing and cutting the paper pile to form a filter element main body; and d, assembling the finished product: bonding and sealing the filter element main body and a filter element end cap to prepare the functional ceramic fiber air filter element. The functional ceramic fiber air filter element has the advantages of high filtering precision, low replacement frequency, no secondary pollution, excellent hydrophobicity, excellent antibacterial property and excellent air purifying function; the product can be recycled; and the inorganic glue solution is helpful for shaping the ceramic fiber, and ensures that the ceramic fiber filter element main body have a good stiffness.

Description

technical field [0001] The invention relates to an air filter element, in particular to a functional ceramic fiber air filter element and a preparation method thereof. Background technique [0002] With the acceleration of my country's industrialization process, air pollution is becoming more and more harmful to human health. In addition to suspended particulate matter (PM10, PM2.5, etc.) Existing gaseous pollutants (sulfur oxides, nitrogen oxides, organic compounds VOCs, etc.). Particles floating in the air for a long time are easily inhaled into the body, and the smaller the particle size, the easier it is to deposit in the human lungs. The existence of gaseous pollutants not only corrodes equipment and buildings, but also stimulates the human respiratory system, and many organic compounds (VOCs) are suspected mutagen and carcinogens. The air filter element is the core material of the air filter. On the one hand, it can effectively filter various harmful particles in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20B01D46/00B01D46/10B01D46/24B01D46/52
CPCB01D39/2082B01D46/0001B01D46/0028B01D46/0036B01D46/10B01D46/2411B01D46/521B01D2239/0407B01D2239/0442
Inventor 徐鹏吴汉阳
Owner JIANGXI BOCENT TEC CO LTD
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