CN103964805B - A kind of preparation method of fly ash-desulfuration gypsum warming plate - Google Patents
A kind of preparation method of fly ash-desulfuration gypsum warming plate Download PDFInfo
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- CN103964805B CN103964805B CN201410228093.3A CN201410228093A CN103964805B CN 103964805 B CN103964805 B CN 103964805B CN 201410228093 A CN201410228093 A CN 201410228093A CN 103964805 B CN103964805 B CN 103964805B
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Abstract
A preparation method for fly ash-desulfuration gypsum warming plate, it relates to a kind of preparation method of warming plate.The present invention will solve existing method and prepare fly ash-desulfuration gypsum warming plate complex process, the problem that cost is high, method of the present invention: take desulfurated plaster, burner hearth ash, flying dust, unslaked lime, cement, retardant, water reducer, water-resisting agent and water; With modification flying dust absorption composite phase-change material under negative pressure, composite phase-change material melting condition, then mix, pour in mould, jolt ramming, the demoulding after final set, seasoning.Method of the present invention is simple to operate, and cost is low.The present invention is applied to warming plate preparation field.
Description
Technical field
The present invention relates to a kind of preparation method of warming plate.
Background technology
Current China electric structure is based on thermoelectricity, a large amount of industrial residues can be produced in coal-burning power plant's operational process, wherein with flyash and desulfurated plaster output maximum, China is the row's of annual output per year about 800,000,000 tons of flyash often, 8000 ten thousand tons of desulfurated plasters, but wherein most ofly directly thrown aside, recovery utilization rate is less than 30%.
Existing fly ash-desulfuration gypsum building materials only have the environmental benefit of Solid state fermentation, general with the elementary building materials performance that it is made for material, can not promote and improve the productive life of the mankind.Therefore, existing fly ash-desulfuration gypsum building materials are not accepted extensively by market and are generally used with the common people.
The mode of current phase change material and material of construction compound has two kinds: directly infusion method and microcapsule method.The building materials phase change material leakage rate that direct infusion method makes is large, and the life-span is short; Microcapsule method is for utilizing encapsulation phase change material, and the technology of preparing of this method is complicated, cost is high.Therefore, phase-change heat-preserving board cannot realize large-scale industrial production.
There were the research and the patent that utilize fly ash-desulfuration gypsum to make building materials in recent years.The achievement in research of domestic fly ash-desulfuration gypsum goods mainly contains:
(1) fly ash-desulfuration gypsum-concrete self-expandable resists dry and cracked type dry-mix and preparation method thereof: Institutes Of Technology Of Changsha Gao Yingli, Chen Yu utilize desulfurated plaster, flyash, cement and other additives to make an a kind of anti-dry and cracked dry-mix, and properties meets national standard.But because this invention only has environmental-protecting performance, user be there is no to the improvement of comfortableness, therefore cannot promote on a large scale.
(2) a kind of gypsum-based phase change energy storage polymer insulation mortar and preparation method thereof: Nanjing University of Technology Lee east rising sun, Zhang Yi etc. utilize calcining desulfurated plaster, active mineral, sizing lipid acid phase-changing energy storage material to make a kind of gypsum-based phase change energy storage polymer insulation mortar.This invention make use of sizing lipid acid phase-changing energy storage material, and namely use the phase change grains of microcapsule method parcel, microcapsule method complex process, cost is high, requires high, be not suitable for scale operation to workman.
Summary of the invention
The object of the invention is to prepare fly ash-desulfuration gypsum warming plate complex process, the problem that cost is high to solve existing method, and a kind of preparation method of fly ash-desulfuration gypsum warming plate is provided.
The preparation method of a kind of fly ash-desulfuration gypsum warming plate of the present invention, it carries out according to following steps:
One, each component is taken by weight: the water of the desulfurated plaster of 40 ~ 60 parts, the burner hearth ash of 40 ~ 60 parts, the modification flying dust of 5 ~ 20 parts, the unslaked lime of 3 ~ 10 parts, the cement of 10 ~ 40 parts, the retardant of 0.01 ~ 2 part, the water reducer of 0.1 ~ 1 part, the water-resisting agent of 0.01 ~ 2 part and 35 ~ 60 parts;
Two, composite phase-change material is got, under negative pressure, composite phase-change material melting condition, modification flying dust step one taken joins in composite phase-change material, be uniformly mixed, be placed in negative-pressure adsorption device, be modification flying dust absorption composite phase-change material 1 ~ 3h under the condition of 0 ~ 1atm in vacuum tightness, obtain flying dust phase change grains;
Three, desulfurated plaster step one taken, burner hearth ash, unslaked lime, cement, retardant, water reducer and water-resisting agent, and the flying dust phase change grains that step 2 obtains mixes, add after water that step one takes is uniformly mixed again, pour in mould, jolt ramming, the demoulding after drying at room temperature, namely seasoning obtains fly ash-desulfuration gypsum warming plate;
Described modification flying dust is through the modified flying dust of acid system, alkaline process and salt method.
The present invention comprises following beneficial effect:
The present invention utilizes solid-liquid phase change energy storage principle, house building materials is absorbed heat, heat release when temperature is low when temperature height, improves the comfort level lived in house, makes full use of latent heat of phase change, reach the object of energy-saving and emission-reduction; By the hydration reaction of flyash and desulfurated plaster, obtaining can the reticulated structure of natural coating phase-change materials.In power plant's industrial waste residue disposal, use present method, the complexity of technique can be reduced, reduce the cost recycled, and effectively solve the leakage problems of phase change material.
Flyash comprises burner hearth ash and flying dust, and the burner hearth ash in flyash and flying dust together do not add as traditional way by the present invention, but first flying dust are carried out modification, absorption composite phase-change material, and then add burner hearth ash; The present invention is by making flyash increase the adsorptive capacity of phase change material to the modification of flying dust, and adsorption effect strengthens.Utilize desulfurated plaster to excite flyash, raw webbed hydrated calcium aluminate sulfate, wraps up phase change grains naturally.Both prevent the seepage of phase change material, turn avoid the sky high cost of the generation of microcapsule method, also improve the intensity of plasterboard;
Compare with microcapsule method with the direct infusion method of existing employing, have phase change material leakage rate little, the life-span is long, and technology is simple, the feature that cost is low.
The present invention works in coordination with the modification that make use of flyash and excites.By adding a small amount of cement, calcium oxide, water-resisting agent, the compositions such as retardant make the intensity of whole plate body strengthen.
The present invention has the difference of 4 DEG C by using this heat-insulation wall plate with the room temp of the warming plate using non-phase transformation.According to the usage data of the general air-conditioning of China, indoor raising 1 DEG C in winter, or make indoor reduction by 1 DEG C that energy consumption will be made to improve the difference of 6%, 4 DEG C by the energy of saving 24% in summer.Be 38MW according to the full heating in winter power in relevant data Heilongjiang Province, after using green warming plate, energy-saving power is 9.1MW, amount to into standard coal to be about and to save standard coal 4,930,000 tons, annual winter in spring emissions reduction carbonic acid gas more than 129.6 ten thousand tons, sulfurous gas 4.2 ten thousand tons, oxynitrides more than 3.6 ten thousand ton, its Economic and ecological effects highly significant.
Accompanying drawing explanation
Fig. 1 be in embodiment 11 deal grind flying dust filter paper soak into result figure;
Fig. 2 be in embodiment 12 deal flying dust filter paper soak into result figure;
Fig. 3 be in embodiment 11 deal flying dust filter paper soak into result figure;
Fig. 4 be in embodiment 11 deal composite phase-change material filter paper soak into result figure;
Fig. 5 be the flying dust filter paper of 1 deal calcium chloride process in embodiment 1 soak into result figure;
Fig. 6 is the flyash desulfurized plaster board keeping temprature curve figure that in embodiment 1, the present invention makes; Wherein, A is the keeping temprature curve of non-composite phase change material, and B is the keeping temprature curve of composite phase-change material;
Fig. 7 is the Electronic Speculum figure of the flying dust phase change grains of composite phase-change material phase change material parcel in embodiment 1;
Fig. 8 is the Electronic Speculum figure of flying dust in embodiment 1.
Embodiment
Embodiment one: the preparation method of a kind of fly ash-desulfuration gypsum warming plate of present embodiment, it carries out according to following steps:
One, each component is taken by weight: the water of the desulfurated plaster of 40 ~ 60 parts, the burner hearth ash of 40 ~ 60 parts, the modification flying dust of 5 ~ 20 parts, the unslaked lime of 3 ~ 10 parts, the cement of 10 ~ 40 parts, the retardant of 0.01 ~ 2 part, the water reducer of 0.1 ~ 1 part, the water-resisting agent of 0.01 ~ 2 part and 35 ~ 60 parts;
Two, composite phase-change material is got, under negative pressure, composite phase-change material melting condition, modification flying dust step one taken joins in composite phase-change material, be uniformly mixed, be placed in negative-pressure adsorption device, be modification flying dust absorption composite phase-change material 1 ~ 3h under the condition of 0 ~ 1atm in vacuum tightness, obtain flying dust phase change grains;
Three, desulfurated plaster step one taken, burner hearth ash, unslaked lime, cement, retardant, water reducer and water-resisting agent, and the flying dust phase change grains that step 2 obtains mixes, add after water that step one takes is uniformly mixed again, pour in mould, jolt ramming, the demoulding after drying at room temperature, namely seasoning obtains fly ash-desulfuration gypsum warming plate;
Described modification flying dust is through the modified flying dust of acid system, alkaline process and salt method.
Embodiment two: present embodiment and embodiment one are made up of the borax of the citric acid of 7 ~ 10 parts, the gelatine of 30 ~ 50 parts and 2 ~ 5 parts by weight unlike: the retardant described in step one.Other is identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two unlike: the water reducer described in step one is wooden calcium sulfonate, thionamic acid calcium, sulfonated melamine or naphthalene.Other is identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three unlike: the water-resisting agent described in step one is mortar waterproof agent, and wherein, described mortar waterproof agent is tetramethylolmethane.Other is identical with one of embodiment one to three.
Embodiment five: one of present embodiment and embodiment one to four unlike: the composite phase-change material described in step 2 by mole% being that the capric acid of 50% ~ 80% and the lauric acid of 20% ~ 50% are made.Other is identical with one of embodiment one to four.
Embodiment six: one of present embodiment and embodiment one to five unlike: the transformation temperature of the composite phase-change material described in step 2 is 18 ~ 25 DEG C.Other is identical with one of embodiment one to five.
Embodiment seven: one of present embodiment and embodiment one to six unlike: the negative pressure described in step 2 refers to vacuum tightness 0 ~ 1atm, and described melting condition refers to that temperature is 30 ~ 70 DEG C.Other is identical with one of embodiment one to six.
Content of the present invention is not limited only to the content of the respective embodiments described above, and the combination of one of them or several embodiment equally also can realize the object of inventing.
Beneficial effect of the present invention is verified by following examples:
Embodiment 1
The preparation method of a kind of fly ash-desulfuration gypsum warming plate of the present embodiment, it carries out according to following steps:
One, each component is taken by weight: the water of the desulfurated plaster of 50 parts, the burner hearth ash of 50 parts, the modification flying dust of 5 parts, the unslaked lime of 10 parts, the cement of 10 parts, the retardant of 0.4 part, the water reducer of 0.5 part, the water-resisting agent of 0.1 part and 45 parts;
Two, composite phase-change material is got, pressure be 1atm, under composite phase-change material melting (temperature is 30 ~ 70 DEG C) condition, modification flying dust step one taken joins in composite phase-change material, be uniformly mixed, be placed in negative-pressure adsorption device, be that under the condition of 0 ~ 1atm, modification flying dust absorption composite phase-change material carries out 1 ~ 3h in vacuum tightness, obtain flying dust phase change grains;
Three, desulfurated plaster step one taken, burner hearth ash, unslaked lime, cement, retardant, water reducer and water-resisting agent, and the flying dust phase change grains that step 2 obtains mixes, add after water that step one takes is uniformly mixed again, pour in mould, jolt ramming, the demoulding after drying at room temperature, namely seasoning obtains fly ash-desulfuration gypsum warming plate;
The modification flying dust of the present embodiment first processes with the calcium chloride solution re-using 1mol/L after the sodium hydroxide solution process of 3.5mol/L, realizes ion-exchange, then under the condition of 110 DEG C, carry out drying.
The retardant of the present embodiment is made up of the borax of the citric acid of 7 ~ 10 parts, the gelatine of 30 ~ 50 parts and 2 ~ 5 parts by weight; The water reducer of the present embodiment is wooden calcium sulfonate; The water-resisting agent of the present embodiment is tetramethylolmethane;
The composite phase-change material of the present embodiment is by mole% being that the capric acid of 65% and the lauric acid of 35% are made; The transformation temperature of composite phase-change material is 21 DEG C;
The Electronic Speculum figure of the fly ash-desulfuration gypsum warming plate that the present embodiment obtains 2 μm as shown in Figure 7, and modified flying dust as shown in Figure 8, from Fig. 3 and Fig. 4, the present embodiment utilizes flyash flying dust to have the carrier making phase change grains of feature used as phase change material of porous adsorptivity, and cost is extremely low.Use negative-pressure adsorption method, flyash and above-mentioned phase change material compound are made phase change grains, use bell glass and vacuum pump, make to fill up phase change material in the hole of flyash.
Test experiments is once carried out to the fly ash-desulfuration gypsum warming plate of the present embodiment:
Get 1g flying dust phase change grains on a slice filter paper, under the condition of 110 DEG C, heat half hour, by observing the size of soaking into area phase change grains seepage discharge of filter paper.As shown in Figures 1 to 5, as can be seen from experimental result, the phase change grains that the flying dust of calcium chloride process is made, seepage discharge is very little for result.Grind flyash identical with its seepage discharge of the phase change grains that ordinary fly ash is made.The phase change material of equivalent on filter paper to soak into area very large, be no matter the flyash of ordinary fly ash or calcium chloride process as seen, all there is certain adsorptivity.
Meanwhile, carried out heat insulation effect experiment to warming plate, as shown in Figure 6, result shows result, and rise in top temperature evaluation index in stop room temp, phase change material volume is more stiff than reference latter about 4 DEG C of the energy-storage gypsum plate of 5%, and fractional energy savings is up to 24%.
Shown in the intensity results part table 1 of the fly ash-desulfuration gypsum warming plate of the present embodiment, can show that the performance of the fly ash-desulfuration gypsum warming plate that the present embodiment obtains meets national standard JC/T9775-2008 by table 1.
The fly ash-desulfuration gypsum warming plate basic parameter that table 1 is made for embodiment 1
| Detect data | Normal data | |
| 28d ultimate compression strength: | 8.21MPa | National standard JC/T9775-2008 |
| 28d folding strength | 4.21MPa | National standard JC/T9775-2008 |
| Planeness mm | 0.8 | 1.0 |
| Apparent density kg/m 3 | 992 | 1000 |
| Crushing load kN | 2.3 | 1.5 |
| Coefficient of softening | 0.62 | 0.6 |
The present embodiment has the difference of 4 DEG C by using this heat-insulation wall plate with the room temp of the warming plate using non-phase transformation.According to the usage data of the general air-conditioning of China, indoor raising 1 DEG C in winter, or make indoor reduction by 1 DEG C that energy consumption will be made to improve the difference of 6%, 4 DEG C by the energy of saving 24% in summer.Be 38MW according to the full heating in winter power in relevant data Heilongjiang Province, after using green warming plate, energy-saving power is 9.1MW, amount to into standard coal to be about and to save standard coal 4,930,000 tons, annual winter in spring emissions reduction carbonic acid gas more than 129.6 ten thousand tons, sulfurous gas 4.2 ten thousand tons, oxynitrides more than 3.6 ten thousand ton, its Economic and ecological effects highly significant.
The present embodiment considers north of China indoor heating temperature in transformation temperature; Making material make use of north of China heat power plant quantity many, flyash and desulfurated plaster produce the large feature of discharge capacity, and therefore this energy-saving heat preserving wallboard can use in Northern Part of China big area.Power plant's waste can be solved well and pile up problem, process some agricultural wastes, such as stalk.On economic and practical sex chromosome mosaicism, this kind of warming plate cost performance is very high, and the cost of flyash and desulfurated plaster is almost nil, can not produce the toxic gases such as the formaldehyde in most of finishing material, harmless to health.
Embodiment 2
The preparation method of a kind of fly ash-desulfuration gypsum warming plate of the present embodiment, it carries out according to following steps:
One, each component is taken by weight: the water of the desulfurated plaster of 50 parts, the burner hearth ash of 50 parts, the modification flying dust of 5 parts, the unslaked lime of 10 parts, the cement of 10 parts, the retardant of 0.4 part, the water reducer of 0.5 part, the water-resisting agent of 0.1 part and 45 parts;
Two, composite phase-change material is got, pressure be 1atm, under composite phase-change material melting (temperature is 30 ~ 70 DEG C) condition, modification flying dust step one taken joins in composite phase-change material, be uniformly mixed, be placed in negative-pressure adsorption device, be that under the condition of 0 ~ 1atm, modification flying dust absorption composite phase-change material carries out 1 ~ 3h in vacuum tightness, obtain flying dust phase change grains;
Three, desulfurated plaster step one taken, burner hearth ash, unslaked lime, cement, retardant, water reducer and water-resisting agent, and the flying dust phase change grains that step 2 obtains mixes, add after water that step one takes is uniformly mixed again, pour in mould, jolt ramming, the demoulding after drying at room temperature, namely seasoning obtains fly ash-desulfuration gypsum warming plate;
The modification flying dust of the present embodiment uses 1mol/L hydrochloric acid to mix with flyash flying dust, and boiling 20 minutes under the condition of 110 DEG C is dry to flyash flying dust.
The retardant of the present embodiment is made up of the borax of the citric acid of 7 ~ 10 parts, the gelatine of 30 ~ 50 parts and 2 ~ 5 parts by weight;
The water reducer of the present embodiment is wooden calcium sulfonate; The water-resisting agent of the present embodiment is tetramethylolmethane;
The composite phase-change material of the present embodiment is by mole% being that the capric acid of 65% and the lauric acid of 35% are made; The transformation temperature of composite phase-change material is 21 DEG C.
The present embodiment has the difference of 4 DEG C by using this heat-insulation wall plate with the room temp of the warming plate using non-phase transformation.According to the usage data of the general air-conditioning of China, indoor raising 1 DEG C in winter, or make indoor reduction by 1 DEG C that energy consumption will be made to improve the difference of 6%, 4 DEG C by the energy of saving 24% in summer.Be 38MW according to the full heating in winter power in relevant data Heilongjiang Province, after using green warming plate, energy-saving power is 9.1MW, amount to into standard coal to be about and to save standard coal 4,930,000 tons, annual winter in spring emissions reduction carbonic acid gas more than 129.6 ten thousand tons, sulfurous gas 4.2 ten thousand tons, oxynitrides more than 3.6 ten thousand ton, its Economic and ecological effects highly significant.
The present embodiment considers north of China indoor heating temperature in transformation temperature; Making material make use of north of China heat power plant quantity many, flyash and desulfurated plaster produce the large feature of discharge capacity, and therefore this energy-saving heat preserving wallboard can use in Northern Part of China big area.Power plant's waste can be solved well and pile up problem, process some agricultural wastes, such as stalk.On economic and practical sex chromosome mosaicism, this kind of warming plate cost performance is very high, and the cost of flyash and desulfurated plaster is almost nil, can not produce the toxic gases such as the formaldehyde in most of finishing material, harmless to health.
Embodiment 3
The preparation method of a kind of fly ash-desulfuration gypsum warming plate of the present embodiment, it carries out according to following steps:
One, each component is taken by weight: the water of the desulfurated plaster of 50 parts, the burner hearth ash of 50 parts, the modification flying dust of 5 parts, the unslaked lime of 10 parts, the cement of 10 parts, the retardant of 0.4 part, the water reducer of 0.5 part, the water-resisting agent of 0.1 part and 45 parts;
Two, composite phase-change material is got, pressure be 1atm, under composite phase-change material melting (temperature is 30 ~ 70 DEG C) condition, modification flying dust step one taken joins in composite phase-change material, be uniformly mixed, be placed in negative-pressure adsorption device, be that under the condition of 0 ~ 1atm, modification flying dust absorption composite phase-change material carries out 1 ~ 3h in vacuum tightness, obtain flying dust phase change grains;
Three, desulfurated plaster step one taken, burner hearth ash, unslaked lime, cement, retardant, water reducer and water-resisting agent, and the flying dust phase change grains that step 2 obtains mixes, add after water that step one takes is uniformly mixed again, pour in mould, jolt ramming, the demoulding after drying at room temperature, namely seasoning obtains fly ash-desulfuration gypsum warming plate;
The modification flying dust of the present embodiment mixes with the sodium hydroxide solution of 1mol/L, heats 20 minutes under the condition of 110 DEG C, dry to flyash flying dust.
The retardant of the present embodiment is made up of the borax of the citric acid of 7 ~ 10 parts, the gelatine of 30 ~ 50 parts and 2 ~ 5 parts by weight;
The water reducer of the present embodiment is wooden calcium sulfonate; The water-resisting agent of the present embodiment is tetramethylolmethane;
The composite phase-change material of the present embodiment is by mole% being that the capric acid of 65% and the lauric acid of 35% are made; The transformation temperature of composite phase-change material is 21 DEG C.
The present embodiment has the difference of 4 DEG C by using this heat-insulation wall plate with the room temp of the warming plate using non-phase transformation.According to the usage data of the general air-conditioning of China, indoor raising 1 DEG C in winter, or make indoor reduction by 1 DEG C that energy consumption will be made to improve the difference of 6%, 4 DEG C by the energy of saving 24% in summer.Be 38MW according to the full heating in winter power in relevant data Heilongjiang Province, after using green warming plate, energy-saving power is 9.1MW, amount to into standard coal to be about and to save standard coal 4,930,000 tons, annual winter in spring emissions reduction carbonic acid gas more than 129.6 ten thousand tons, sulfurous gas 4.2 ten thousand tons, oxynitrides more than 3.6 ten thousand ton, its Economic and ecological effects highly significant.
The present embodiment considers north of China indoor heating temperature in transformation temperature; Making material make use of north of China heat power plant quantity many, flyash and desulfurated plaster produce the large feature of discharge capacity, and therefore this energy-saving heat preserving wallboard can use in Northern Part of China big area.Power plant's waste can be solved well and pile up problem, process some agricultural wastes, such as stalk.On economic and practical sex chromosome mosaicism, this kind of warming plate cost performance is very high, and the cost of flyash and desulfurated plaster is almost nil, can not produce the toxic gases such as the formaldehyde in most of finishing material, harmless to health.
Claims (7)
1. a preparation method for fly ash-desulfuration gypsum warming plate, is characterized in that it carries out according to following steps:
One, each component is taken by weight: the water of the desulfurated plaster of 40 ~ 60 parts, the burner hearth ash of 40 ~ 60 parts, the modification flying dust of 5 ~ 20 parts, the unslaked lime of 3 ~ 10 parts, the cement of 10 ~ 40 parts, the retardant of 0.01 ~ 2 part, the water reducer of 0.1 ~ 1 part, the water-resisting agent of 0.01 ~ 2 part and 35 ~ 60 parts;
Two, composite phase-change material is got, under negative pressure, composite phase-change material melting condition, modification flying dust step one taken joins in composite phase-change material, be uniformly mixed, be placed in negative-pressure adsorption device, under the condition for 0< vacuum tightness <1atm, modification flying dust absorption composite phase-change material 1 ~ 3h, obtains flying dust phase change grains;
Three, desulfurated plaster step one taken, burner hearth ash, unslaked lime, cement, retardant, water reducer and water-resisting agent, and the flying dust phase change grains that step 2 obtains mixes, add after water that step one takes is uniformly mixed again, pour in mould, jolt ramming, the demoulding after drying at room temperature, namely seasoning obtains fly ash-desulfuration gypsum warming plate;
Described modification flying dust is through the modified flying dust of acid system, alkaline process or salt method.
2. the preparation method of a kind of fly ash-desulfuration gypsum warming plate according to claim 1, is characterized in that the retardant described in step one is made up of the borax of the citric acid of 7 ~ 10 parts, the gelatine of 30 ~ 50 parts and 2 ~ 5 parts by weight.
3. the preparation method of a kind of fly ash-desulfuration gypsum warming plate according to claim 1, is characterized in that the water reducer described in step one is wooden calcium sulfonate, thionamic acid calcium, sulfonated melamine or naphthalene.
4. the preparation method of a kind of fly ash-desulfuration gypsum warming plate according to claim 1, is characterized in that the water-resisting agent described in step one is mortar waterproof agent, and wherein, described mortar waterproof agent is tetramethylolmethane.
5. the preparation method of a kind of fly ash-desulfuration gypsum warming plate according to claim 1, is characterized in that the composite phase-change material described in step 2 is by mole% being that the capric acid of 50% ~ 80% and the lauric acid of 20% ~ 50% are made.
6. the preparation method of a kind of fly ash-desulfuration gypsum warming plate according to claim 1, is characterized in that the transformation temperature of the composite phase-change material described in step 2 is 18 ~ 25 DEG C.
7. the preparation method of a kind of fly ash-desulfuration gypsum warming plate according to claim 1, modification flying dust absorption composite phase-change material 1 ~ 3h under the condition for 0< vacuum tightness <1atm, described melting condition refers to that temperature is 30 ~ 70 DEG C.
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| CN105174895B (en) * | 2015-10-13 | 2018-06-15 | 北京高能时代环境技术股份有限公司 | A kind of preparation method of light-weight water-proof thermal insulation material used for building exterior wall |
| CN105924120B (en) * | 2016-05-18 | 2018-05-18 | 河北科技大学 | A kind of water proof anti-seepage phase-change energy-storage gypsum building block and preparation method thereof |
| CN106082918B (en) * | 2016-06-26 | 2018-02-23 | 深圳南利装饰集团股份公司 | A kind of preparation method of high-strength light waterproof gypsum board |
| CN108218376B (en) * | 2018-03-13 | 2020-08-28 | 浙江大学宁波理工学院 | Desulfurized gypsum temperature-regulating building block and preparation method thereof |
| CN109896819A (en) * | 2019-04-22 | 2019-06-18 | 盐城工学院 | A kind of composite modified desulfurized plaster board and preparation method thereof |
| US11384022B2 (en) * | 2019-05-22 | 2022-07-12 | Abbas Khan | Method of producing lightweight ceramic sand particulates from coal pond ash and use thereof |
| CN113441532A (en) * | 2021-07-29 | 2021-09-28 | 苏州西热节能环保技术有限公司 | Fly ash treatment method for waste incineration power plant |
| CN114716981B (en) * | 2022-05-07 | 2023-05-05 | 中国科学院过程工程研究所 | Modified phosphogypsum-based organic phase change composite heat storage material and preparation method and application thereof |
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| CN101994364A (en) * | 2009-08-24 | 2011-03-30 | 江苏仁和建材科技有限公司 | Phase-change energy storage desulphurization gypsum building blocks and preparation method thereof |
| CN102417340A (en) * | 2011-08-31 | 2012-04-18 | 南京工业大学 | Gypsum-based phase change energy storage polymer insulation mortar and preparation method thereof |
| CN102659378A (en) * | 2012-05-05 | 2012-09-12 | 太原理工大学 | Production method of heat accumulation gypsum wall body material |
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