CN101994364A - Phase-change energy storage desulphurization gypsum building blocks and preparation method thereof - Google Patents
Phase-change energy storage desulphurization gypsum building blocks and preparation method thereof Download PDFInfo
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- CN101994364A CN101994364A CN200910170996XA CN200910170996A CN101994364A CN 101994364 A CN101994364 A CN 101994364A CN 200910170996X A CN200910170996X A CN 200910170996XA CN 200910170996 A CN200910170996 A CN 200910170996A CN 101994364 A CN101994364 A CN 101994364A
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- vermiculite
- energy storage
- desulfurated plaster
- change energy
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5024—Silicates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses phase-change energy storage desulphurization gypsum building blocks and a preparation method thereof. The main raw materials of the phase-change energy storage desulphurization gypsum building blocks are desulphurization gypsum, which is a product of desulphurization, and phase-change energy storage vermiculite from power plants. The method comprises: calcining the desulphurization gypsum in a calcining kiln to prepare desulphurization gypsum powder; mixing the desulphurization gypsum powder with fly ash and molding the mixture; and filling the phase-change energy storage vermiculite into hollow cores, and obtaining the phase-change energy storage desulphurization gypsum building blocks. The phase-change energy storage vermiculite uses light porous vermiculite as a substrate, phase-change energy storage materials are absorbed in the phase-change energy storage vermiculite, and a polymer-based composite material film layer covers phase-change energy storage vermiculite. The invention develops a new way of producing wall materials which have high added values and are energy-saving and environmentally-friendly by using desulphurization gypsum and a new way of comprehensively utilizing desulphurization gypsum solid waste and provides a new scheme for solving the problems of building energy conservation and thermal insulation.
Description
Affiliated technical field:
The present invention relates to the energy-storage composite material field, relate in particular to a kind of phase-change and energy-storage desulfurized gypsum building block and preparation method thereof.
Background technology:
At present, the increasing flue-gas desulfurizing engineering investment construction of China along with the enforcement of flue-gas desulfurizing engineering, will give off a large amount of solid waste---desulfurated plaster soon.Yet at present the utilization rate of China's desulfurated plaster is also very low, though the minority power plant construction gypsum process equipment, its utilization does not seldom become main flow, major part is still to stockpile and store.Desulfurated plaster has become the second largest solid waste behind thermal power plant's flyash, stores up if adopt to abandon, and will take the land resources of a large amount of preciousnesses, and living environment is on every side produced adverse influence.Therefore utilize desulfurated plaster that the national environmental protection and the strategy of sustainable development are had material impact.
Utilize material energy-absorbing and the characteristics of releasing energy in phase transition process, realize that the storage of energy and utilization are in recent years in one of active direction of various fields such as the energy, material, Aero-Space, weaving, electric power, medical instrument, building.Phase-change accumulation energy has advantages such as energy storage density height, energy storage easy control of temperature and range of choice are wide, has entered practicability and commercialization stage in some fields at present.
The research that the phase-change accumulation energy constructional materials is applied to building materials starts from nineteen eighty-two, is initiated by Sunpower Corp. of USDOE.Got up with the technical development that PCM handles constructional materials (as gypsum plank, wallboard and concrete component etc.) nineties in 20 century.The phase-change and energy-storage desulfurized gypsum building block is according to designing requirement, calculate and set through science, can absorb and emit heat automatically, height is inhaled low putting, and regulates the temperature in the energy building automatically, reduce the fluctuation of temperature, the temperature adjustment amplitude can reach 3～4 ℃, improves the comfort level that people live, and reduces the energy consumption of building operation, the phase-change and energy-storage desulfurized gypsum building block is actually a kind of energy accumulator, has great application value aspect building energy conservation, the temperature control.The phase-change and energy-storage desulfurized gypsum building block increases the thermal inertia of building, and the indoor temperature change generated in case amplitude is reduced, thereby reduces the access times of air-conditioning equipment, thereby reaches energy saving purposes.
Summary of the invention:
The purpose of this invention is to provide a kind of materials for wall that can be applied to building energy-saving, insulation, and can fully utilize the comfort level of desulfurated plaster, raising people inhabitation, the energy consumption of reduction building operation.
Technical scheme of the present invention is: a kind of phase-change and energy-storage desulfurized gypsum building block that is applied to building material industry, and by being primary raw material with the desulfurated plaster powder of preparing with desulphurization gypsum calcination.The desulfurated plaster powder is mixed with into slip with flyash, pours in the building block mould, and sclerosis back form removal, the last hollow place that again the phase-change accumulation energy vermiculite is filled into goods, seal with desulfurated plaster powder slurry at two ends, hollow place, promptly obtains the phase-change and energy-storage desulfurized gypsum building block.
Desulfurated plaster powder of the present invention is directly the solid waste desulfurated plaster of steam power station desulfurization to be passed through low temperature drying, and at high temperature calcining makes the desulfurated plaster powder then.Desulfurated plaster is in calcination process, form a large amount of water vapours, desulfurated plaster is dewatered under the state that is in higher water vapor pressure, can make the crystalline form of semi-hydrated gypsum of generation comparatively complete, crystal has less crackle, density is bigger, and therefore, the performance of the desulfurated plaster powder of calcining out is comparatively excellent.And the waste heat that high-temperature calcination place produces is used with the part heat, finishes the process of desulfurated plaster oven dry, makes full use of heat, improves efficiency of utilization.
Phase-change accumulation energy vermiculite of the present invention is to be matrix with the vermiculite.This phase-change accumulation energy vermiculite has superior performance, and its phase transition temperature is between 5～70 ℃, and phase-change accumulation energy density is greater than 40MJ/m
3, the phase transition process coefficient of heat transfer is greater than 4.4kw/ ℃ of m
3Organic phase changing matter generally can adopt paraffin or aliphatic acid and derivative thereof etc.; The outer layer copolymer based composites generally adopts resin, emulsion etc. as base material, adopts aluminium, copper powders may as filler, makes rete have hyposmosis, high heat-transfer performance, and the weight ratio that filler accounts for composite material is 1～3%.
The preparation of phase-change and energy-storage desulfurized gypsum building block of the present invention.Adopting the land plaster of desulfurated plaster preparation is primary raw material, mixes mutually with flyash, and the preparation desulfurization gypsum block is inserted the phase-change accumulation energy vermiculite at the hollow place of building block then and prepared the phase-change and energy-storage desulfurized gypsum building block.In its concrete preparation process: earlier desulfurated plaster is calcined preparation desulfurated plaster powder in calcining kiln, desulfurated plaster powder and 20%～50% flyash are poured in the agitated kettle, dry mixing 1～2 minute, add measured in advance water then, stirred again 2～3 minutes, the slip that stirs is poured in the building block mould, treat goods sclerosis back form removal after 5～10 minutes, the last hollow place that again the phase-change accumulation energy vermiculite is filled into goods, seal with desulfurated plaster powder slurry at the place, two ends of hollow, promptly obtains the phase-change and energy-storage desulfurized gypsum building block.
Beneficial effect:
1, raw material is cheap and easy to get.The used desulfurated plaster of the present invention has become second largest solid waste behind thermal power plant's flyash in China, and widely applies as yet at present, generally be as waste sludge discharge in the stockyard, low price.
2, production is simple, production efficiency is high.As long as be mixed with desulfurization gypsum block at desulfurated plaster powder and a certain amount of flyash prepared through the desulfurated plaster after the calcination processing, insert the phase-change accumulation energy vermiculite at the hollow place then.This production technology not only can solve the problem that phase-changing energy storage material and matrix merge mutually, problem such as analyses but also solved melting of phase-changing energy storage material, has improved the application life and the stability of phase-changing energy storage material.
3, phase-change and energy-storage desulfurized gypsum building block light weight, little, the wall leveling of thickness, the two sides need not to plaster, and increases building headroom area.
4, during phase-change and energy-storage desulfurized gypsum concrete block masonry body of wall, labor and material saving, is saved auxilliary material at the reduction of erection time, and uses the building of phase-change and energy-storage desulfurized gypsum building block, and year utilization rate of air-conditioning will reduce significantly, reduction building operation energy consumption.
5, open up the new application of desulfurated plaster, improved the added value that desulfurated plaster utilizes.
The specific embodiment:
Provide following examples below in conjunction with content of the present invention:
The needed material desulfurated plaster of the preparation of phase-change and energy-storage desulfurized gypsum building block powder is by special calcine technology elder generation low temperature drying, back high-temperature calcination, prepares the land plaster of excellent performance with the solid waste desulfurated plaster.
Embodiment one:
Adopt high-quality desulfurated plaster powder, three grades of flyash, clean water, the building block of phase-change accumulation energy vermiculite Composite Preparation phase-change and energy-storage desulfurized gypsum.Wherein phase-change accumulation energy vermiculite composite material is made up of technical grade paraffin and vermiculite, mass ratio is 4: 1, it is 80% of the phase-change material quality that accounts for composite material, the outer layer copolymer based composites adopts resin as base material, adopt aluminium powder as filler, the weight ratio that filler accounts for composite material is 2.4%.。The match ratio of desulfurated plaster powder and flyash is 7: 3, dry mixing 1 minute, add measured in advance water (account for dry material weight 70%) then, stirred again 3 minutes, the slip that stirs is poured in the building block mould, treated goods sclerosis back form removal after 7 minutes, again the phase-change accumulation energy vermiculite is filled up to the hollow place of goods at last, seal with desulfurated plaster powder slurry at the place, two ends of hollow, and the water/binder ratio of this slip is: 0.6: 1.
Embodiment two:
Adopt high-quality desulfurated plaster powder, three grades of flyash, clean water, the building block of phase-change accumulation energy vermiculite Composite Preparation phase-change and energy-storage desulfurized gypsum.Wherein phase-change accumulation energy vermiculite composite material is made up of aliphatic acid and vermiculite, mass ratio is 4.5: 1, it is 82% of the phase-change material quality that accounts for composite material, the outer layer copolymer based composites adopts resin as base material, adopt aluminium powder as filler, the weight ratio that filler accounts for composite material is 2.2%.。The match ratio of desulfurated plaster powder and flyash is 7: 3, dry mixing 1 minute, add measured in advance water (account for dry material weight 70%) then, stirred again 3 minutes, the slip that stirs is poured in the building block mould, treated goods sclerosis back form removal after 7 minutes, again the phase-change accumulation energy vermiculite is filled up to the hollow place of goods at last, seal with desulfurated plaster powder slurry at the place, two ends of hollow, and the water/binder ratio of this slip is: 0.6: 1.
Embodiment three:
Adopt high-quality desulfurated plaster powder, three grades of flyash, clean water, the building block of phase-change accumulation energy vermiculite Composite Preparation phase-change and energy-storage desulfurized gypsum.Wherein phase-change accumulation energy vermiculite composite material is made up of aliphatic acid and vermiculite, mass ratio is 5: 1, promptly phase-change material account for composite material quality 83%, the outer layer copolymer based composites adopts resin as base material, adopt copper powders may as filler, the weight ratio that filler accounts for composite material is 1.2%.。The match ratio of desulfurated plaster powder and flyash is 8: 2, dry mixing 1 minute, add measured in advance water (account for dry material weight 65%) then, stirred again 3 minutes, the slip that stirs is poured in the building block mould, treated goods sclerosis back form removal after 7 minutes, again the phase-change accumulation energy vermiculite is filled up to the hollow place of goods at last, seal with desulfurated plaster powder slurry at the place, two ends of hollow, and the water/binder ratio of this slip is: 0.6: 1.
Said components is by the phase-change and energy-storage desulfurized gypsum building block of aforementioned technology preparation, and its test parameter performance indications see the following form.
Claims (8)
1. phase-change and energy-storage desulfurized gypsum building block and preparation method thereof, be that employing solid waste desulfurated plaster is a main raw material(s), it is characterized in that earlier desulfurated plaster being handled through special calcine technology, preparation desulfurated plaster powder, with the mixed building-block that gets of a certain amount of flyash, insert the phase-change accumulation energy vermiculite at the block core place at last again.
2. method according to claim 1 is characterized in that adopting special process for calcining.Calcine technology be earlier with desulfurated plaster at low temperature drying, at high temperature calcining makes the desulfurated plaster powder then.
3. method according to claim 2, the calcining heat that it is characterized in that high-temperature calcination are 400 ℃～800 ℃, and the bake out temperature of low temperature drying is 100 ℃～300 ℃.
4. method according to claim 1, the flyash that it is characterized in that desulfurated plaster powder and 20%～50% is poured in the agitated kettle, dry mixing 1～2 minute, add measured in advance water then, stirred again 2～3 minutes, the slip that stirs is poured in the building block mould, treated goods sclerosis back form removal after 5～10 minutes, make the desulfurization gypsum hollow building block.
5. method according to claim 1 is characterized in that the phase-change accumulation energy vermiculite, is matrix with light porous vermiculite, contains 60～85% organic phase changing matters in vermiculite, and it is 10～60 μ m polymer composites retes that outer wrap thickness.
6. method according to claim 5 is characterized in that organic phase changing matter is paraffin or aliphatic acid and derivative thereof.
7. method according to claim 5 is characterized in that the polymer composites rete is base material with the resin emulsion, and as filler, filler accounts for composite material weight ratio 1～3% with aluminium, copper metal powder end.
8. method according to claim 1 is characterized in that the hollow place of the desulfurization gypsum block after sclerosis inserts the phase-change accumulation energy vermiculite, seals with desulfurated plaster powder slurry at the two ends of hollow then, and the water/binder ratio of desulfurated plaster powder slurry is: 0.5～0.7: 1.
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| CN200910170996XA CN101994364A (en) | 2009-08-24 | 2009-08-24 | Phase-change energy storage desulphurization gypsum building blocks and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102432260A (en) * | 2011-09-20 | 2012-05-02 | 盐城工学院 | Organic-inorganic composite phase-change energy-storage gypsum building block |
| CN102535735A (en) * | 2011-07-05 | 2012-07-04 | 江苏尼高科技有限公司 | Preparation method of phase change energy-storage gypsum wallboard |
| CN103664120A (en) * | 2013-11-26 | 2014-03-26 | 蚌埠市天网渔需用品有限公司 | Gypsum base phase change energy storing polymer thermal mortar |
| CN103964805A (en) * | 2014-05-27 | 2014-08-06 | 哈尔滨工业大学 | Preparation method of coal ash-desulphurization gypsum thermal-insulation board |
| CN105924120A (en) * | 2016-05-18 | 2016-09-07 | 河北科技大学 | Waterproof and anti-permeability phase-change-energy-storage gypsum block and preparing method thereof |
| CN106082921A (en) * | 2016-06-30 | 2016-11-09 | 云南瑞沃思新能源科技有限公司 | A kind of New-type phase change energy-storage gypsum plate |
| CN109592920A (en) * | 2018-11-05 | 2019-04-09 | 山东新大地环保建材有限公司 | Filler material, preparation facilities and method and its application based on steam power plant's waste |
-
2009
- 2009-08-24 CN CN200910170996XA patent/CN101994364A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535735A (en) * | 2011-07-05 | 2012-07-04 | 江苏尼高科技有限公司 | Preparation method of phase change energy-storage gypsum wallboard |
| CN102535735B (en) * | 2011-07-05 | 2015-03-04 | 江苏尼高科技有限公司 | Preparation method of phase change energy-storage gypsum wallboard |
| 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 |
| CN102417340B (en) * | 2011-08-31 | 2013-04-10 | 南京工业大学 | Gypsum-based phase change energy storage polymer insulation mortar and preparation method thereof |
| CN102432260A (en) * | 2011-09-20 | 2012-05-02 | 盐城工学院 | Organic-inorganic composite phase-change energy-storage gypsum building block |
| CN103664120A (en) * | 2013-11-26 | 2014-03-26 | 蚌埠市天网渔需用品有限公司 | Gypsum base phase change energy storing polymer thermal mortar |
| CN103964805A (en) * | 2014-05-27 | 2014-08-06 | 哈尔滨工业大学 | Preparation method of coal ash-desulphurization gypsum thermal-insulation board |
| CN103964805B (en) * | 2014-05-27 | 2016-01-20 | 哈尔滨工业大学 | A kind of preparation method of fly ash-desulfuration gypsum warming plate |
| CN105924120A (en) * | 2016-05-18 | 2016-09-07 | 河北科技大学 | Waterproof and anti-permeability phase-change-energy-storage gypsum block and preparing method thereof |
| 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 |
| CN106082921A (en) * | 2016-06-30 | 2016-11-09 | 云南瑞沃思新能源科技有限公司 | A kind of New-type phase change energy-storage gypsum plate |
| CN109592920A (en) * | 2018-11-05 | 2019-04-09 | 山东新大地环保建材有限公司 | Filler material, preparation facilities and method and its application based on steam power plant's waste |
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Application publication date: 20110330 |