CN111393152A - Negative oxygen ion micropore ceramic air filter plate - Google Patents

Negative oxygen ion micropore ceramic air filter plate Download PDF

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Publication number
CN111393152A
CN111393152A CN201910868347.0A CN201910868347A CN111393152A CN 111393152 A CN111393152 A CN 111393152A CN 201910868347 A CN201910868347 A CN 201910868347A CN 111393152 A CN111393152 A CN 111393152A
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filter plate
air filter
negative oxygen
nano
oxygen ion
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Inventor
王永根
朱快
杨大平
徐小勇
祁锦锦
裴旭
徐廷博
陆英杰
戚继军
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Greentown Decoration Engineering Group Co Ltd
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Greentown Decoration Engineering Group Co Ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D39/14—Other self-supporting filtering material ; Other filtering material
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
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    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Filtering Materials (AREA)

Abstract

The invention relates to a filter plate, in particular to a negative oxygen ion microporous ceramic air filter plate which can remove bacteria and purify air during air filtration, can generate negative oxygen ions which are beneficial to human bodies to refresh air in the air purification process and can reduce the cost. The product of the invention has uniform pore-forming, the aperture is controlled between 50 and 80 microns, and the radial analysis, observation and analysis show that micropores have uniform irregular coherent channels. The effective rate of the micropores is more than 25%. The product can be repeatedly used in the normal use process, dust particles adsorbed by the filter plate can be washed by clear water after being washed by diluted cleaning liquid and sterilization disinfectant for a plurality of times, and the filter plate can be installed in normal use of equipment after being naturally dried, so that the expensive filter screen replacement cost is saved.

Description

Negative oxygen ion micropore ceramic air filter plate
Technical Field
The invention relates to a filter plate, in particular to a negative oxygen ion microporous ceramic air filter plate which can remove bacteria, purify air, generate negative oxygen ions which are beneficial to human bodies in the air purification process and reduce the cost.
Background
At present, various air treatment and air purification devices are introduced in the market for dealing with air PM2.5 pollution, indoor formaldehyde and toluene VOC (volatile organic compounds) in various layers, the principle is not limited to the purpose of air treatment through activated carbon adsorption and multi-layer filtering fiber dust filtration, but from the analysis of the scientific and chemical principle, activated carbon can only perform adsorption on formaldehyde, toluene and VOC, does not perform chemical reaction with formaldehyde, toluene and VOC to generate irreversible harmless elements, and only performs the function of harmful substance migration physically, while the multi-layer filtering fiber filtering net material does not have a self-cleaning function and is not waterproof, dust is deposited and blocks meshes for a period of time, so that the function of mesh air circulation is lost, a user needs to pay expensive cost for replacement, the material does not have a repeated use function, secondary pollution is easily caused, and the device is not beneficial to the nation and people.
The microporous ceramic filter plate consists of four parts of aggregate particles, a bonding agent, a pore-forming agent and a rare earth corrosion inhibitor. The outer surface and the inner part of the product form mutually communicated bridge arch-shaped open pores through high-temperature sintering, when fluid passes through the micropore channel, suspended matters, colloid particles and macromolecular organic matters are intercepted on the surface of the product, and the fluid passes through the micropore channel to generate various physical and chemical effects, thereby achieving the purposes of purification and filtration.
Disclosure of Invention
The invention aims to provide a negative oxygen ion microporous ceramic air filter plate which can remove bacteria and purify air during air filtration, can generate negative oxygen ions which are beneficial to human bodies during the air purification process, freshen the air and reduce the cost in order to overcome the defects that the existing air filter net material does not have a self-cleaning function, dust blocks meshes after long-time use and the replacement cost is expensive.
In order to achieve the purpose, the invention adopts the following technical scheme:
the negative oxygen ion microporous ceramic air filter plate is made up by using silicon series ceramic material as raw material, adding (by wt%) 5-10% of zirconium oxide, 8-12% of negative ion powder, 3-5% of bactericidal material, 2-5% of pore-forming agent or natural fibre, 0.2-0.5% of binding agent, 0.8-1% of sol and 2-4% of vulcanizing agent into the described silicon series ceramic material. In the technical scheme, the product has uniform pore-forming, the aperture is controlled to be 50-80 microns, and the micropores are analyzed to have uniform irregular coherent channels through radial analysis and observation. The effective rate of the micropores is more than 25%. The nano zirconia has the characteristics of strong thermal shock resistance, high temperature resistance, good chemical stability, outstanding material composite property and the like, can greatly improve the performance parameters of the material, and improve the fracture toughness, bending strength and the like of the material, and the ceramic sintered by the nano zirconia powder becomes one of main structural ceramics due to the good phase change toughening performance of the ceramic; in the research of nano composite materials, nano zirconium dioxide is used as a dispersion relative matrix to be subjected to toughening; the tourmaline negative ion powder is adopted because the negative oxygen ions generated in the negative ion powder have higher activity and strong redox effect, and can destroy the activity of cell membranes of bacteria or cell plasma active enzymes, thereby achieving the aim of antibiosis and sterilization, and the negative ions in the negative ion powder move in the air and are in a Z shape. And negative charges are delivered to bacteria, dust, smoke particles, water drops and the like, and the charges are combined with the particles to form balls which sink, so that the aim of purifying air is fulfilled, and indoor peculiar smell and various harmful gases are eliminated. Then, the sterilizing material and the nano tourmaline negative ion powder are added for sterilization in a synergistic manner, so that the sterilization is thorough and lasting.
Preferably, the zirconia is nanoscale.
Preferably, the anion powder is nano tourmaline anion powder.
Preferably, the sterilization material is one of a nano silver series sterilization material, a nano zinc oxide series sterilization material or a nano cuprous oxide series sterilization material. In the technical scheme, the nano-silver series sterilization materials are as follows: the metal silver has strong bacteriostatic activity, and is prepared into nano silver particles by means of a nano technology, so that the metal silver particles have higher practical value and better antibacterial effect, silver ions in the nano silver particles are combined with bacterial membrane cells, the membrane structure is damaged under the super-strong strengthening action, substances in the bacterial membrane leak out, and chitosan which is a product of the cell membrane cannot be normally synthesized, so that DNA of bacteria is exposed and reacts with the silver ions, the normal propagation path of the bacteria is blocked, and the sterilization effect is achieved. The nano zinc oxide has stronger bacteriostatic and bactericidal effects and broad-spectrum antibacterial property, and has incomparable antibacterial effect compared with the traditional inorganic antibacterial agent due to quantum effect, small-size effect and larger specific surface area; due to the huge specific surface area, a large number of crystal defects and the positive charge effect of the ion surface, the nano zinc oxide shows high antibacterial activity to bacteria, mould, spores, yeast and other microorganisms. The nano zinc oxide is used as a sterilizing material and nano tourmaline negative ion powder, so that the durability of the antibacterial effect can be kept.
Preferably, the pore-forming agent is ammonium chloride, ammonium carbonate or ammonium bicarbonate.
Preferably, the binder is a silicate.
Preferably, the sol is a mixture of a hydrosol and silica.
Preferably, the raw materials are fully stirred and uniformly mixed according to the formula ratio, then are pressed and molded by a mold, and then are sintered at the high temperature of 850 ℃ of 700-.
The invention has the beneficial effects that: the negative oxygen ion microporous ceramic air filter plate provided by the invention has the functions of sterilizing and purifying air in air filtration, generates negative oxygen ion fresh air beneficial to human bodies in the air purification process, and is called as air vitamin in the medical field. The product of the invention has uniform pore-forming, the aperture is controlled between 50 and 80 microns, and the radial analysis, observation and analysis show that micropores have uniform irregular coherent channels. The effective rate of the micropores is more than 25%. The product can be repeatedly used in the normal use process, dust particles adsorbed by the filter plate can be washed by clear water after being washed by diluted cleaning liquid and sterilization disinfectant for a plurality of times, and the filter plate can be installed in normal use of equipment after being naturally dried, so that the expensive filter screen replacement cost is saved.
Detailed Description
The invention is further illustrated by the following examples in which:
the raw materials used in the invention are all available from the market, and the treatment method is also the existing treatment method if not specially.
Example 1
The negative oxygen ion microporous ceramic air filter plate comprises a silicon series ceramic material raw material, wherein 5% of nano-grade zirconia, 8% of nano tourmaline negative ion powder, 3% of one-dimensional nano Ag/C composite material, 2% of pore-forming agent ammonium chloride, 0.2% of binding agent silicate, 0.8% of ferric hydroxide sol, silicon dioxide (the mass ratio is 1: 1) and 2% of vulcanizing agent are added into the silicon series ceramic material raw material in percentage by weight to prepare the negative oxygen ion microporous ceramic air filter plate. The raw materials are fully stirred and uniformly mixed according to the formula ratio, then are pressed and formed by a mould, and then are sintered at a high temperature of 700 ℃, and the aperture is controlled to be 50-80 microns.
Example 2
The negative oxygen ion microporous ceramic air filter plate comprises a silicon series ceramic material raw material, wherein 8% of nano-grade zirconium oxide, 10% of nano tourmaline negative ion powder, 3% of nano zinc oxide series sterilization material, 3% of pore-forming agent ammonium carbonate, 0.3% of binding agent silicate, 0.9% of ferric hydroxide sol, silicon dioxide (mass ratio is 1: 1) and 3% of vulcanizing agent are added into the silicon series ceramic material raw material in percentage by weight to prepare the negative oxygen ion microporous ceramic air filter plate. The raw materials are fully stirred and uniformly mixed according to the formula ratio, then are pressed and formed by a mould, and then are sintered at the high temperature of 780 ℃, and the aperture is controlled to be 50-80 microns.
Example 3
A negative oxygen ion microporous ceramic air filter plate comprises a silicon series ceramic material raw material, wherein 10% of nano-grade zirconium oxide, 12% of nano tourmaline negative ion powder, 5% of nano cuprous oxide series sterilization material, 5% of pore-forming agent ammonium bicarbonate, 0.5% of binding agent silicate, 1% of ferric hydroxide sol, silicon dioxide (mass ratio is 1: 1) and 4% of vulcanizing agent are added into the silicon series ceramic material raw material to prepare the silicon series ceramic air filter plate. The raw materials are fully stirred and uniformly mixed according to the formula ratio, then are pressed and formed by a mould, and then are sintered at a high temperature of 850 ℃, and the aperture is controlled to be 50-80 microns.
Example 4
The negative oxygen ion microporous ceramic air filter plate comprises a silicon series ceramic material raw material, wherein 10% of nano-grade zirconium oxide, 12% of nano tourmaline negative ion powder, 5% of nano cuprous oxide series sterilization material, 5% of pore-forming agent sisal fiber, 0.5% of binding agent silicate, 1% of ferric hydroxide sol, silicon dioxide (mass ratio is 1: 1) and 4% of vulcanizing agent are added into the silicon series ceramic material raw material in percentage by weight to prepare the negative oxygen ion microporous ceramic air filter plate. The raw materials are fully stirred and uniformly mixed according to the formula ratio, then are pressed and formed by a mould, and then are sintered at a high temperature of 850 ℃, and the aperture is controlled to be 50-80 microns.
Comparative example 1, commercially available activated carbon was placed into the filter plate.
And (3) performance testing: 1. formaldehyde removal performance test at room temperature for 12 hours (25 ℃ C.)
The test is carried out according to the national standard QB-T2761-2006 method for measuring the purification effect of indoor air purification products. A1 m square bare board capable of releasing formaldehyde was placed in a 10 m square vacant room, and after 24 hours, the vacant room was examined for formaldehyde concentration of 1 mg/m, the filter plates of examples 1 to 4 and the filter plate of comparative example 1 (the filter plates were the same size) were placed in each vacant room, respectively, and after 12 hours, the formaldehyde concentration in the vacant room was examined. The formaldehyde removal rate (initial concentration-sample concentration) X100/initial concentration was as shown in table 1.
2. Formaldehyde removal performance test at room temperature for 24 hours (25 ℃ C.)
The test is carried out according to the national standard QB-T2761-2006 method for measuring the purification effect of indoor air purification products. A1 m square bare board capable of releasing formaldehyde was placed in a 10 m square blank room, and after 24 hours, the blank room was examined to determine the concentration of formaldehyde at 1 mg/m, the filter plates of examples 1 to 4 and the filter plate of comparative example 1 were placed in each blank room, respectively, and after 24 hours, the concentration of formaldehyde in the blank room was examined. The formaldehyde removal rate (initial concentration-sample concentration) X100/initial concentration was as shown in table 1.
TABLE 1 test results
Formaldehyde removal rate (12h) Formaldehyde removal rate (24h)
Example 1 89.2％ 91.7％
Example 2 90.5％ 94.3％
Example 3 91％ 96.2％
Example 4 87％ 89.3％
Comparative example 1 41％ 43.9％
As can be seen from Table 1, the filter plates of examples 1 to 4 have better removal efficiency of formaldehyde than the filter plate of comparative example 1, while having more thorough and lasting effect of removing formaldehyde after 24 hours.
The above embodiments are only used to describe the technical solutions of the present application in detail, but the above embodiments are only used to help understanding the method of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily apparent to one skilled in the art are intended to be included within the scope of the embodiments of the present invention.

Claims (8)

1. The negative oxygen ion microporous ceramic air filter plate comprises a silicon series ceramic material raw material, and is characterized in that 5-10% of zirconium oxide, 8-12% of negative ion powder, 3-5% of a sterilizing material, 2-5% of a pore-forming agent or natural fiber, 0.2-0.5% of a bonding agent, 0.8-1% of sol and 2-4% of a vulcanizing agent are added into the silicon series ceramic material raw material in percentage by weight.
2. The negative oxygen ion microporous ceramic air filter plate of claim 1, wherein the zirconia is nano-sized.
3. The oxygen anion micro porous ceramic air filter plate of claim 1, wherein the anion powder is a nano tourmaline anion powder.
4. The negative oxygen ion microporous ceramic air filter plate of claim 1, wherein the sterilizing material is one of nano silver series sterilizing material, nano zinc oxide series sterilizing material or nano cuprous oxide series sterilizing material.
5. The oxygen anion microporous ceramic air filter plate of claim 1, wherein the pore former is ammonium chloride, ammonium carbonate or ammonium bicarbonate.
6. The negative oxygen ion microporous ceramic air filter plate of claim 1, wherein the binder is a silicate.
7. The oxygen anion micro porous ceramic air filter plate of claim 1, wherein said sol is a mixture of a hydrosol and silica.
8. The negative oxygen ion microporous ceramic air filter plate of claim 1, wherein the raw materials are fully stirred and uniformly mixed according to the formula ratio, then are pressed and molded by a mold, and then are sintered at a high temperature of 850 ℃ at 700 ℃ and 850 ℃, and the pore diameter is controlled to be 50-80 microns.
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN114146577A (en) * 2021-12-09 2022-03-08 广西碧清源环保投资有限公司 Ceramic filtering membrane capable of releasing negative ions and preparation method thereof

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CN102432325A (en) * 2011-07-25 2012-05-02 广东骏丰频谱实业有限公司 Three-dimensional porous far-infrared negative ion ceramic body, preparation method thereof, and purpose thereof
US20150306271A1 (en) * 2009-06-03 2015-10-29 Triatomic Environmental, Inc. Adsorptive photo-catalytic oxidation air purification device
CN107500731A (en) * 2017-09-22 2017-12-22 苏州瓷气时代净化设备有限公司 A kind of micropore ceramic filter scavenging material
CN109331607A (en) * 2018-11-27 2019-02-15 成都新柯力化工科技有限公司 A kind of the air purifying filter core material and preparation method of efficient release anion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150306271A1 (en) * 2009-06-03 2015-10-29 Triatomic Environmental, Inc. Adsorptive photo-catalytic oxidation air purification device
CN102432325A (en) * 2011-07-25 2012-05-02 广东骏丰频谱实业有限公司 Three-dimensional porous far-infrared negative ion ceramic body, preparation method thereof, and purpose thereof
CN107500731A (en) * 2017-09-22 2017-12-22 苏州瓷气时代净化设备有限公司 A kind of micropore ceramic filter scavenging material
CN109331607A (en) * 2018-11-27 2019-02-15 成都新柯力化工科技有限公司 A kind of the air purifying filter core material and preparation method of efficient release anion

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114146577A (en) * 2021-12-09 2022-03-08 广西碧清源环保投资有限公司 Ceramic filtering membrane capable of releasing negative ions and preparation method thereof

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