CN107051375A - A kind of desiccant wheel and preparation method thereof - Google Patents
A kind of desiccant wheel and preparation method thereof Download PDFInfo
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- CN107051375A CN107051375A CN201710184258.5A CN201710184258A CN107051375A CN 107051375 A CN107051375 A CN 107051375A CN 201710184258 A CN201710184258 A CN 201710184258A CN 107051375 A CN107051375 A CN 107051375A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3214—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating
Abstract
The present invention discloses a kind of desiccant wheel and preparation method thereof, specifically, and the desiccant wheel includes cellular web；The cellular web includes inorganic fibre paper and is compound in the layer of silica gel and molecular sieve layer of inorganic fibre paper outer layer successively；The layer of silica gel is impregnated in water glass solution to be formed after gel layer by cellular web and is made again with reacting metal salt.Preparing the method for the desiccant wheel includes：1) cellular web is prepared；2) gel layer is prepared using waterglass；3) gel layer is impregnated in metal salt solution and prepares layer of silica gel；With 4) prepare molecular sieve layer, that is, obtain desiccant wheel.The desiccant wheel that the present invention is provided, its quality is slim and graceful, intensity is high, durable in use；It uses infusion process that molecular sieve layer and layer of silica gel is made on inorganic fibre paper surface successively original position, and its technological operation is simple, molecular sieve layer and layer of silica gel absorption are firm, with higher stability.
Description
Technical field
The present invention relates to dehumidification equipment field, and in particular to a kind of desiccant wheel and preparation method thereof.
Background technology
In the wet weather using plum rain season as representative, it usually needs to indoor carry out dehumidification treatments, to reduce sense of discomfort.
The method of dehumidifying can also be dehumidified in addition to the drier such as traditional use calcium chloride are adsorbed by dehumidifier.Family
It is unsatisfactory with refrigerated dehumidification machine effect, and volume is big, power consumption is big.
The rotary wheel type Dehumidifier of family expenses is as shown in figure 1, including heat exchanger 2, web 3, heater 4, dehumidifying fan 5 and
Regeneration fan 6, moisture 1 is converted into drop 7 under the work of dehumidifier.Although effect on moisture extraction is relatively preferable, by small product size
The size of its runner is influenceed also to be restricted.In order to improve effect on moisture extraction, more efficient drier is generally required.
The conventional drier such as calcium chloride etc. is non-reusable.Domestic dehumidifying machine generally selects silica gel or molecular sieve.Molecule
The relative humidity of sieve, activated alumina (granular), activated alumina (spherical) and silica gel and relation such as Fig. 2 institutes of balance wet volume capacity
Show, the adsorbance of molecular sieve is limited, in the case where relative humidity is larger, its wettability power is much smaller than silica gel；And humidity is held with wet
The relation of amount as shown in figure 3, silica gel under high temperature and cryogenic conditions adsorptivity not as molecular sieve it is stable, both respectively have advantage and disadvantage.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention aims to provide a kind of water absorbing properties more preferably and use the longevity
Order long desiccant wheel.
The purpose of the present invention is realized using following technical scheme：
A kind of desiccant wheel, it includes cellular web；The cellular web is including inorganic fibre paper and successively
It is compound in the layer of silica gel and molecular sieve layer of inorganic fibre paper outer layer；It is molten that the layer of silica gel is impregnated in waterglass by cellular web
It is made again with reacting metal salt after forming gel layer in liquid.
The second object of the present invention is to provide the method for preparing above-mentioned desiccant wheel, comprised the following steps：
1) web is prepared：Corrugated is pressed into after inorganic fibre paper is shaped, is rolled into by water glass solution bonding
Cellular web；
2) gel layer is prepared：By step 1) obtained cellular web is impregnated in water glass solution, dries, in honeycomb
The madial wall formation gel layer of shape web；
3) layer of silica gel is prepared：By step 2) processing after cellular web be impregnated in metal salt solution, rinse repeatedly, do
It is dry, in step 2) the interior formation layer of silica gel of the gel layer；The metal salt is aluminum sulfate, magnesium sulfate, calcium chloride or magnesium chloride；Institute
The pH for stating metal salt solution is 4-6；
4) molecular sieve layer is prepared：Molecular sieve is scattered in inorganic bond, impregnation steps 3) processing after cellular turn
Wheel body, is dried, in step 3) form molecular sieve layer outside the layer of silica gel, that is, obtain desiccant wheel.
Preferably, step 1) in, the material of the inorganic fibre paper is ceramic fibre, reinforced plastic glass fibre, aluminum oxide fibre
Dimension, mullite fiber or carbon fiber.
Preferably, the Baume degrees of the water glass solution is 45-48, modulus is 2.5-2.8.
Preferably, step 2) in, drying temperature is 110-120 DEG C, and drying time is 90-120min.
Preferably, step 3) in, dip time is 2-5h, and drying temperature is 140-160 DEG C, and drying time is 120-
180min。
Preferably, step 4) in, inorganic bond is that silicon dioxide gel, alundum (Al2O3) colloidal sol or titanium dioxide are molten
Glue.
Preferably, step 4) in, molecular sieve is X-type molecular sieve.
Preferably, step 4) in, content of the molecular sieve in inorganic bond is 15-25w.t.%, inorganic bond
Solid content be 4-6%.
Preferably, step 4) in, drying temperature is 140-160 DEG C, and drying time is 120-180min.
Compared with prior art, the beneficial effects of the present invention are：
The desiccant wheel that the present invention is provided, it is rolled after being molded using inorganic fibre paper and formed, and its quality is slim and graceful, intensity
Height is durable in use；It uses infusion process that molecular sieve layer and layer of silica gel is made on inorganic fibre paper surface successively original position, its technique behaviour
Make simple, molecular sieve layer and layer of silica gel absorption is firm, with higher stability.
Brief description of the drawings
Fig. 1 is the structural representation of family expenses rotary wheel type Dehumidifier；
Fig. 2 is the relative humidity of drier and the curve map of balance wet volume capacity；
Fig. 3 is the temperature of drier and the curve map of balance wet volume capacity；
Fig. 4 is the structural representation of the desiccant wheel of embodiment 1；
Fig. 5 is the cross-sectional view of the supporter of embodiment 1；
Wherein, each reference：1st, moisture；2nd, heat exchanger；3rd, web；4th, heater；5th, dehumidify fan；6th, regenerate
Fan；7th, drop；10th, desiccant wheel；11st, matrix；12nd, layer of silica gel；13rd, molecular sieve layer；20th, supporter；30th, air duct.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further：
The present invention provides a kind of desiccant wheel, and it includes cellular web；The cellular web includes inorganic fibre
Dimension paper and the layer of silica gel and molecular sieve layer for being compound in inorganic fibre paper outer layer successively；The layer of silica gel is impregnated by cellular web
It is made again with reacting metal salt after forming gel layer in water glass solution.
The layer of silica gel of the desiccant wheel is, madial wall compactness with cellular web generated in-situ by infusion process
Height, coating thickness is uniform；The desiccant wheel has the layer of silica gel of internal layer and the molecular sieve layer of outer layer, in high humidity or the environment of hyperpyrexia
Under have higher, relatively stable water absorbing properties.
The method for preparing above-mentioned desiccant wheel, comprises the following steps：
1) web is prepared：Corrugated is pressed into after inorganic fibre paper is shaped, is rolled into by water glass solution bonding
Cellular web；
In the step, cellular web light weight, the anti-deformation behavior of suitable inorganic fibrous paper making are good；
2) gel layer is prepared：By step 1) obtained cellular web is impregnated in water glass solution, dries, in honeycomb
The madial wall formation gel layer of shape web；
3) layer of silica gel is prepared：By step 2) processing after cellular web be impregnated in metal salt solution, rinse repeatedly, do
It is dry, in step 2) the interior formation layer of silica gel of the gel layer；The metal salt is aluminum sulfate, magnesium sulfate, calcium chloride or magnesium chloride；Institute
The pH for stating metal salt solution is 4-6；
In the step, the uniform gel layer of a layer thickness is formed on cellular web madial wall by elder generation, then by honeybee
Nest shape web is impregnated in metal salt solution, with in-situ preparation layer of silica gel；Madial wall of its layer of silica gel in cellular web
Spreading depth is uniform, and adhesive force is high, so as to make to obtain desiccant wheel durable in use；Wherein, metal salt solution is the acid of metal salt
Solution；
4) molecular sieve layer is prepared：Molecular sieve is scattered in inorganic bond, impregnation steps 3) processing after cellular turn
Wheel body, is dried, in step 3) form molecular sieve layer outside the layer of silica gel, that is, obtain desiccant wheel.
Embodiment 1：
The water glass solution that the present embodiment is used is 47 for Baume degrees, and modulus is 2.6.
A kind of preparation method of desiccant wheel, comprises the following steps：
1) web is prepared：It is that 0.3mm, width are that shaping glue is sprayed on 200mm ceramic fiber paper to thickness, passes through pressure
The corrugated height of roll pressing is the corrugated that 2mm ripple spacing is 3.5mm；The side coating water of ceramic fiber paper after pressing
Glass solution, the ceramic fiber paper after compacting and another unstamped thickness are bonded for 0.3mm ceramic fiber paper and compressed；
A diameter of 300mm is made in the opposite side coating water glass solution of shaping fiber paper after compacting, winding, and thickness turns for 200mm's
Colyliform honeycomb ceramics；
2) gel layer is prepared：By step 1) obtained cellular web is impregnated in water glass solution, in 115 DEG C of dryings
105min, in the madial wall formation gel layer of cellular web；
3) layer of silica gel is prepared：By step 2) processing after cellular web be impregnated in pH be 4 aluminum sulfate solution 3 it is small
When, rinsed repeatedly after discharging raffinate, in 150 DEG C of dry 150min, in step 2) the interior formation layer of silica gel of the gel layer；
4) molecular sieve layer is prepared：It is that 10 μm of 4A types molecular sieves and silicon dioxide gel press 1 by particle diameter:4 ratio mixing,
It is uniformly mixing to obtain slurries, wherein the solid content of silicon dioxide gel is 6%, by step 3) cellular web leaching after processing
Stain impregnates 20 minutes in above-mentioned slurries；Raffinate is discharged, in 150 DEG C of dry 150min, in step 3) the layer of silica gel profile composition
Sub- screen layers, that is, obtain desiccant wheel.
As shown in figure 4, desiccant wheel 10 is in cellular, including the air duct 30 inside supporter 20 and supporter；
The cross-sectional structure schematic diagram of supporter is as shown in figure 5, it is using inorganic fibre paper as matrix 11, and is answered successively in the outside of matrix
Conjunction has layer of silica gel 12 and molecular sieve layer 13.
Embodiment 2：
The water glass solution that the present embodiment is used is 45 for Baume degrees, and modulus is 2.6.
A kind of preparation method of desiccant wheel, comprises the following steps：
1) web is prepared：It is that 0.2mm, width are that shaping glue is sprayed on 200mm carbon fiber paper to thickness, passes through pressure roller
It is the corrugated that 2mm ripple spacing is 3.5mm to be pressed into wave height；The side coating waterglass of carbon fiber paper after pressing
Solution, the carbon fiber paper after compacting and another unstamped thickness are bonded for 0.2mm carbon fiber paper and compressed；After pressing
A diameter of 200mm is made in the opposite side coating water glass solution of shaping fiber paper, winding, and thickness is 200mm runner shape honeycomb
Body；
2) gel layer is prepared：By step 1) obtained cellular web is impregnated in water glass solution, in 110 DEG C of dryings
120min, in the madial wall formation gel layer of cellular web；
3) layer of silica gel is prepared：By step 2) processing after cellular web be impregnated in pH be 5 Adlerika 4 it is small
When, rinsed repeatedly after discharging raffinate, in 160 DEG C of dry 120min, in step 2) the interior formation layer of silica gel of the gel layer；
4) molecular sieve layer is prepared：It is that 5 μm of 13X types molecular sieves and alundum (Al2O3) colloidal sol press 1 by particle diameter:5 ratio is mixed
Close, be uniformly mixing to obtain slurries, wherein the solid content of alundum (Al2O3) colloidal sol is 6%, by step 3) cellular turn after processing
Wheel body is impregnated in above-mentioned slurries, impregnates 30 minutes；Raffinate is discharged, in 140 DEG C of dry 160min, in step 3) outside the layer of silica gel
Molecular sieve layer is formed, that is, obtains desiccant wheel.
Embodiment 3：
The water glass solution that the present embodiment is used is 48 for Baume degrees, and modulus is 2.8.
A kind of preparation method of desiccant wheel, comprises the following steps：
1) web is prepared：It is that 0.1mm, width are that shaping glue is sprayed in 200mm alumina fibre paper to thickness, passes through
It is the corrugated that 2mm ripple spacing is 3.5mm that pressure roller, which is pressed into wave height,；The side of alumina fibre paper after pressing is applied
Water glass solution is covered, the alumina fibre paper after compacting is glued with another unstamped thickness for 0.1mm alumina fibre paper
Combined pressure is tight；A diameter of 250mm is made in the opposite side coating water glass solution of shaping fiber paper after pressing, winding, and thickness is
200mm runner shape honeycomb ceramics；
2) gel layer is prepared：By step 1) obtained cellular web is impregnated in water glass solution, in 110 DEG C of dryings
120min, in the madial wall formation gel layer of cellular web；
3) layer of silica gel is prepared：By step 2) processing after cellular web be impregnated in pH be 5 Adlerika 4 it is small
When, rinsed repeatedly after discharging raffinate, in 160 DEG C of dry 180min, in step 2) the interior formation layer of silica gel of the gel layer；
4) molecular sieve layer is prepared：It is that 8 μm of NY types molecular sieves and TiO 2 sol press 1 by particle diameter:5 ratio mixing, is stirred
Mix it is uniform obtain slurries, the wherein solid content of TiO 2 sol is 6%, by step 3) cellular web dipping after processing
In above-mentioned slurries, impregnate 20 minutes；Raffinate is discharged, in 160 DEG C of dry 120min, in step 3) molecule is formed outside the layer of silica gel
Screen layers, that is, obtain desiccant wheel.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of desiccant wheel, it is characterised in that it includes cellular web；The cellular web includes inorfil
Paper and the layer of silica gel and molecular sieve layer for being compound in inorganic fibre paper outer layer successively；The layer of silica gel is impregnated in by cellular web
It is made again with reacting metal salt after forming gel layer in water glass solution.
2. preparing the method for desiccant wheel as claimed in claim 1, comprise the following steps：
1) web is prepared：Corrugated is pressed into after inorganic fibre paper is shaped, honeycomb is rolled into by water glass solution bonding
Shape web；
2) gel layer is prepared：By step 1) obtained cellular web is impregnated in water glass solution, dries, at cellular turn
The madial wall formation gel layer of wheel body；
3) layer of silica gel is prepared：By step 2) processing after cellular web be impregnated in metal salt solution, rinse repeatedly, dry,
In step 2) the interior formation layer of silica gel of the gel layer；The metal salt is aluminum sulfate, magnesium sulfate, calcium chloride or magnesium chloride；It is described
The pH of metal salt solution is 4-6；
4) molecular sieve layer is prepared：Molecular sieve is scattered in inorganic bond, impregnation steps 3) processing after cellular web,
Dry, in step 3) form molecular sieve layer outside the layer of silica gel, that is, obtain desiccant wheel.
3. method according to claim 2, it is characterised in that step 1) in, the material of the inorganic fibre paper is ceramics
Fiber, reinforced plastic glass fibre, alumina fibre, mullite fiber or carbon fiber.
4. method according to claim 2, it is characterised in that the Baume degrees of the water glass solution is 45-48, modulus is
2.5-2.8。
5. method according to claim 2, it is characterised in that step 2) in, drying temperature is 110-120 DEG C, when drying
Between be 90-120min.
6. method according to claim 2, it is characterised in that step 3) in, dip time is 2-5h, and drying temperature is
140-160 DEG C, drying time is 120-180min.
7. method according to claim 2, it is characterised in that step 4) in, inorganic bond is silicon dioxide gel, three
Al 2 O colloidal sol or TiO 2 sol.
8. method according to claim 2, it is characterised in that step 4) in, molecular sieve is X-type molecular sieve.
9. method according to claim 2, it is characterised in that step 4) in, content of the molecular sieve in inorganic bond
For 15-25w.t.%, the solid content of inorganic bond is 4-6%.
10. method according to claim 2, it is characterised in that step 4) in, drying temperature is 140-160 DEG C, when drying
Between be 120-180min.
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| CN201710184258.5A CN107051375A (en) | 2017-03-24 | 2017-03-24 | A kind of desiccant wheel and preparation method thereof |
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| CN201710184258.5A CN107051375A (en) | 2017-03-24 | 2017-03-24 | A kind of desiccant wheel and preparation method thereof |
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Cited By (10)
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| CN107537290A (en) * | 2017-10-16 | 2018-01-05 | 王金华 | A kind of preparation method of compound-dehumidifying agent |
| CN108976798A (en) * | 2018-05-08 | 2018-12-11 | 净顶新材料科技无锡有限公司 | Setting agent is used in a kind of production of VOCs honeycomb runner cell cube |
| CN109589929A (en) * | 2018-11-20 | 2019-04-09 | 华东理工大学 | A kind of structuring silica gel adsorptive material and preparation method thereof |
| CN109764419A (en) * | 2018-12-28 | 2019-05-17 | 东南大学 | A kind of pump-free type solution dehumidifying and regenerating device based on solution impregnation |
| CN111408338A (en) * | 2020-03-17 | 2020-07-14 | 江苏苏净集团有限公司 | Silica gel rotating wheel adsorbing material for dehumidification and preparation method thereof |
| CN111408337A (en) * | 2020-03-17 | 2020-07-14 | 江苏苏净集团有限公司 | Silica gel dehumidification rotating wheel and preparation method thereof |
| CN112645612A (en) * | 2020-12-22 | 2021-04-13 | 青岛华世洁环保科技有限公司 | Dehumidification rotating wheel and preparation method thereof |
| CN112705158A (en) * | 2020-12-22 | 2021-04-27 | 青岛华世洁环保科技有限公司 | Preparation method of high-load modified silica gel dehumidification rotary core |
| CN113842876A (en) * | 2021-11-02 | 2021-12-28 | 上海大学(浙江·嘉兴)新兴产业研究院 | Hydrophobic molecular sieve rotating wheel and preparation method thereof |
| CN114682045A (en) * | 2022-03-17 | 2022-07-01 | 青岛华世洁环保科技有限公司 | Antibacterial household dehumidifying rotating wheel and preparation method thereof |
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| CN107537290A (en) * | 2017-10-16 | 2018-01-05 | 王金华 | A kind of preparation method of compound-dehumidifying agent |
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| CN111408337A (en) * | 2020-03-17 | 2020-07-14 | 江苏苏净集团有限公司 | Silica gel dehumidification rotating wheel and preparation method thereof |
| CN111408338B (en) * | 2020-03-17 | 2023-03-14 | 江苏苏净集团有限公司 | Silica gel rotating wheel adsorbing material for dehumidification and preparation method thereof |
| CN112645612A (en) * | 2020-12-22 | 2021-04-13 | 青岛华世洁环保科技有限公司 | Dehumidification rotating wheel and preparation method thereof |
| CN112705158A (en) * | 2020-12-22 | 2021-04-27 | 青岛华世洁环保科技有限公司 | Preparation method of high-load modified silica gel dehumidification rotary core |
| CN113842876A (en) * | 2021-11-02 | 2021-12-28 | 上海大学(浙江·嘉兴)新兴产业研究院 | Hydrophobic molecular sieve rotating wheel and preparation method thereof |
| CN114682045A (en) * | 2022-03-17 | 2022-07-01 | 青岛华世洁环保科技有限公司 | Antibacterial household dehumidifying rotating wheel and preparation method thereof |
| CN114682045B (en) * | 2022-03-17 | 2024-03-08 | 青岛华世洁环保科技有限公司 | Antibacterial household dehumidifying rotating wheel and preparation method thereof |
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