CN103157434B - High-efficient low-resistance molding air purification material and preparation method thereof - Google Patents
High-efficient low-resistance molding air purification material and preparation method thereof Download PDFInfo
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- CN103157434B CN103157434B CN201310018401.5A CN201310018401A CN103157434B CN 103157434 B CN103157434 B CN 103157434B CN 201310018401 A CN201310018401 A CN 201310018401A CN 103157434 B CN103157434 B CN 103157434B
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Abstract
The invention discloses high-efficient low-resistance molding air purification material and a preparation method of the high-efficient low-resistance molding air purification material. The high-efficient low-resistance molding air purification material can be used for chemical industry, catalysis, environment protection, and poison filter ventilating devices. The high-efficient low-resistance molding air purification material is composed of framework support material and granulated or powder-shaped purification material. The preparation method of the high-efficient low-resistance molding air purification material includes the following steps of evenly adhering the granulated or powder-shaped purification material to the framework support material of a certain shape through hot glue and forming a firm molding integrate structure. The prepared purification material in a molding structure can keep original purification activity of granules basically invariant. The prepared purification material in a molding structure can not only have high efficiency of granule purification material but also reduce airflow resistance because of a loose framework. The prepared purification material in a molding structure further avoids that vibration in the process of transportation and utilization leads the material in a filling layer to sink to form a phenomenon of short circuit of channeling.
Description
Technical field
The present invention relates to a kind of moulding material for air purification and technology of preparing thereof.This material and the polishing filter that uses this material to prepare, can be used for chemical industry, environmental protection, catalysis and gas defence field.
Background technology
Graininess material for air purification in use, while particularly use in air-conditioning box or industrial gas purifying technique, owing to being subject to the restriction such as fan pressure head and resistance dissipative, often have to use larger particles (conventionally using the column charcoal of diameter 4mm), and the less outer surface of bulky grain scavenging material and particle effect of intraparticle diffusion make the adsorption layer (invalid layers) of bulky grain scavenging material thicker, reduce the effective rate of utilization of adsorption reaction efficiency and scavenging material.Particularly, in the time that the air-flow velocity by purifying layer is very fast, cannot use book layer absorber, cause filter larger, effective adsorption capacity is low, changes scavenging material inconvenience.And small-particulate materials has larger outer surface and less effect of intraparticle diffusion, produce thin adsorption layer, but the gas-flow resistance of small-particulate materials is larger, energy consumption and fan pressure head are difficult to reach.
The fixed-type technology of granular materials is existing many, is all generally in finished particle material, to add the moulding that is heating and curing again of glue or rubber powder.Apply these technology and can prepare integrally-built filtering material, sorbing material etc., as with after granular activated carbon curing molding for water purifier, fixed-bed adsorber etc.But for absorption, catalysis, gas defence material, major part belongs to porous material, use liquid glue can enter in the hole of material, stop up duct, reduce absorption property.
If the catalyst material of processing for interpolation impregnating agent directly mixes with rubber powder, because particle is different from rubber powder density and granularity, be difficult to mix, therefore need to add a large amount of rubber powders, after moulding, the exhibiting high surface of glue meeting cladding material, significantly reduces the serviceability of material.
Another kind method is that water infiltrates material granule surface, then mixes with rubber powder, and rubber powder ratio is easier to the even particle surface that sticks to like this, reduces the use amount of rubber powder.But in moistening and solidification process, the active component of catalyst is easy to assemble and destroy, and catalytic activity is significantly reduced.And the granule scavenging material of above-mentioned direct gluing shaping still can not overcome gas-flow resistance shortcoming bigger than normal.
Summary of the invention
The invention provides a kind of moulding material for air purification and preparation method thereof.This material is mainly made up of skeleton backing material and graininess or Powdered scavenging material, use thermosol or heat curing-type glue that fine granularity or Powdered scavenging material are sticked on the skeleton backing material of definite shape equably, form firmly molded integral structure.
Technical scheme of the present invention is as follows:
A kind of moulding material for air purification of efficient low-resistance, comprise material for air purification and thermosol or heat curing-type glue, it is characterized in that, described material for air purification is by thermosol or the gluing surface that is connected on the cellular or netted support frame with suitable hole of heat curing-type.
The material of described support frame is ceramic honey comb, molecular sieve, aluminium oxide, fleece, wire netting, non-woven mat, sponge, corrugated sheet or composite porous material.
Described support frame is prefabricated into tabular, cylindric or required arbitrary shape as required.
Described material for air purification is active carbon, activated alumina, molecular sieve, silica or the compound that contains above material, and its character is dipping or non-impregnated; Its shape is crushed particles shape, column, spherical or Powdered.
Described thermosol is PU, EVA or the suitable hot melt material of other melt temperatures; Described heat curing-type glue comprises water soluble phenol resin, polyurethane or acrylic resin.
The melt temperature of described thermosol is lower than the autoignition temperature of softening temperature and the material for air purification of support frame.
A kind of preparation method of moulding material for air purification of described efficient low-resistance.It is characterized in that, preparation process is as follows:
(1) by PUR heating and melting, support frame is dipped in and takes out a moment in the liquid heat colloidal sol of thawing, cooling rapidly, on skeleton, adhere to equably the curing thermosol of one deck; Or use heat curing-type glue directly support frame to be dipped in to taking-up in a moment in glue;
(2) support frame that is covered with glue is placed in to a container, to filling granule or pulverous material for air purification in container, until scavenging material covers support frame completely;
(3) said vesse is placed in to baking oven, the temperature of baking oven is arranged on to the solidification temperature higher than melt temperature or the heat curing-type glue of thermosol, lower than the softening temperature of support frame, smokes 1～4 hour, container is taken out from baking oven, in air, be cooled to room temperature;
(4) support frame is taken out in container, remove unnecessary material for air purification, now, on skeleton, adhered to uniformly one deck granule or powder material for air purification, form required moulding material for air purification.
Technique effect of the present invention is: this bonding process make rubber powder and scavenging material contact area very little, the molding structure material for air purification of preparation can not cover the hole and the active surface that stop up scavenging material, so can keep the original purification activity of particle substantially constant.Both can bring into play the high efficiency of granule scavenging material, again can be because loose skeleton reduces gas-flow resistance, also can avoid causing because of the vibration in transport, use procedure the channel short circuit phenomenon that in filling layer, material sinks to forming.This material can use under high gas flow flow velocity, produces lower gas-flow resistance, obtains higher adsorption efficiency and available capacity.Thereby significantly reduce the use amount of scavenging material, can, for thin layer element filter, increase filter area, reduce resistance loss, it is convenient to change.
Detailed description of the invention
Embodiment 1:
1, material and instrument: cellular nylon wire, thickness 10mm; Broken shape desulphurized aetivated carbon, particle diameter 0.3-0.5mm; EVA rubber powder, 80 DEG C of softening temperatures; Enamel tray, degree of depth 50mm.
2, preparation technology: first EVA is heated to 140 DEG C and is melted into liquid for subsequent use; Nylon wire is dipped in and takes out a moment in the liquid EVA thermosol of thawing, cooling rapidly, on nylon wire, adhere to equably the curing EVA thermosol of one deck; Solidify the nylon wire of EVA thermosol and be placed in enamel tray being covered with, to filling granule desulphurized aetivated carbon in container, until desulphurized aetivated carbon covers nylon wire completely; Enamel tray is placed in to baking oven, the temperature of baking oven is arranged on to 130 DEG C of temperature, smoke 2 hours, container is taken out from baking oven, in air, be cooled to room temperature; Nylon wire is taken out in container, remove unnecessary desulphurized aetivated carbon particle, now, on nylon wire, adhered to uniformly one deck desulphurized aetivated carbon, the tabular desulfurization Carbon Materials that formation desired thickness is 10mm.
Embodiment 2:
1, material and instrument: ceramic honeycomb, thickness 30mm; Activated alumina powder, particle diameter is less than 200 orders; Water-soluble phenolic resin adhesive; Enamel tray, degree of depth 50mm.
2, preparation technology: first water is liquid for subsequent use by water-soluble phenolic resin adhesive dissolved dilution; Ceramic honey comb is dipped in and is taken out a moment in liquid glue, on ceramic honey comb, adhere to equably one deck glue; Be placed in enamel tray, to filling activated alumina powder in enamel tray, until activated alumina powder covers ceramic honey comb completely; Enamel tray is placed in to baking oven, the temperature of baking oven is arranged on to 180 DEG C of temperature, smoke 2 hours, container is taken out from baking oven, in air, be cooled to room temperature; Ceramic honey comb is taken out in container, remove unnecessary activated alumina powder, now, on ceramic honey comb, adhered to uniformly one deck activated alumina powder, form required honeycombed scavenging material.This material hole is large, and gas-flow resistance is low, can under higher temperature, use.
Embodiment 3:
1, material and instrument: loose non-woven mat, thickness 3mm; One side is with the nonwoven of PUR point; Broken shaped activated carbon, particle diameter 0.3mm; EVA rubber powder 40-60 order, 80 DEG C of softening temperatures; Hot-pressing roller.
2, preparation technology: first by for subsequent use with nonwoven and the non-woven mat heat pressure adhesive of PUR point one side; Broken shaped activated carbon is mixed by 10:1 with EVA rubber powder, and cloth is sprinkled upon simultaneously and is covered with in the non-woven mat of nonwoven equably, controls the about 200g/m of consumption of active carbon
2, the non-textile mulch with PUR point is in the non-woven mat of spilling active carbon, cooling rapidly after 160 DEG C of hot pressing, make the about 3mm of thickness two sides and be covered with the limber board shaped activated carbon material of nonwoven.This material can be folded into filter and use, and expands filter area, reduces gas-flow resistance.
The support frame of all the other materials and the concrete technology of material for air purification can be with reference to above-described embodiments, according to the physical and chemical parameter of material, technique carried out suitably adjusting and routine test can realize, and do not repeat them here.
Performance comparison experiment:
The particle desulphurized aetivated carbon that is 2.5mm by the tabular desulfurization Carbon Materials making in embodiment 1 and the diameter that uses same material to make carries out purging sulfur dioxide test.In test, the experimental concentration of sulfur dioxide gas is 4ppm, the continuous flow that is 0.4m/s by gas flow rate.The purification efficiency that records bi-material is as shown in table 1:
The purification efficiency of table 1 bi-material to sulfur dioxide
The granule desulfurization carbon slab that uses as can be seen from Table 1 the inventive method to prepare is high with the loose charcoal phase specific efficiency of not moulding, resistance is little.
Claims (1)
1. the preparation method of the moulding material for air purification of an efficient low-resistance, it is characterized in that, the moulding material for air purification of described efficient low-resistance comprises material for air purification and PUR or heat curing-type glue, and described material for air purification is by PUR or the gluing surface that is connected on the cellular or netted support frame with suitable hole of heat curing-type; Preparation process is as follows:
(1) by PUR heating and melting, support frame is dipped in and takes out a moment in the liquid heat colloidal sol of thawing, cooling rapidly, on skeleton, adhere to equably the curing thermosol of one deck; Or use heat curing-type glue directly support frame to be dipped in to taking-up in a moment in glue;
(2) support frame that is covered with glue is placed in to a container, to filling granule or pulverous material for air purification in container, until scavenging material covers support frame completely;
(3) said vesse is placed in to baking oven, the temperature of baking oven is arranged on to the solidification temperature higher than melt temperature or the heat curing-type glue of thermosol, lower than the softening temperature of support frame, smokes 1～4 hour, container is taken out from baking oven, in air, be cooled to room temperature;
(4) support frame is taken out in container, remove unnecessary material for air purification, now, on skeleton, adhered to uniformly one deck granule or powder material for air purification, form required moulding material for air purification.
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| CN201310018401.5A CN103157434B (en) | 2013-01-18 | 2013-01-18 | High-efficient low-resistance molding air purification material and preparation method thereof |
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| CN103157434B true CN103157434B (en) | 2014-10-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104043314B (en) * | 2014-06-17 | 2016-04-27 | 北京埃夫信环保科技有限公司 | A kind of mesopore molecular sieve coating processes |
| CN106750499A (en) * | 2016-11-22 | 2017-05-31 | 俞潮军 | A kind of micropore large surface material for volatile organic contaminant absorption |
| CN106423102A (en) * | 2016-11-23 | 2017-02-22 | 广西大学 | Air purification material and preparation method thereof |
| CN106390873A (en) * | 2016-12-02 | 2017-02-15 | 山东科润环保科技有限公司 | Low-resistance adsorbing material based on resin microspheres and application of low-resistance adsorbing material |
| CN110433575A (en) * | 2019-08-26 | 2019-11-12 | 惠州市腾旺环境净化科技有限公司 | A kind of preparation method of efficient filter core |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393626Y (en) * | 1999-05-13 | 2000-08-30 | 中国人民解放军57605部队 | Purifying filtering materials containing particular adsorbent |
| CN2495367Y (en) * | 2000-12-28 | 2002-06-19 | 中国人民解放军63971部队 | Purification material contg. granular absorbent |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393626Y (en) * | 1999-05-13 | 2000-08-30 | 中国人民解放军57605部队 | Purifying filtering materials containing particular adsorbent |
| CN2495367Y (en) * | 2000-12-28 | 2002-06-19 | 中国人民解放军63971部队 | Purification material contg. granular absorbent |
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