CN106242281B - A kind of wide spectrum high-absorbility black glass and its preparation method and application - Google Patents
A kind of wide spectrum high-absorbility black glass and its preparation method and application Download PDFInfo
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- CN106242281B CN106242281B CN201610621240.2A CN201610621240A CN106242281B CN 106242281 B CN106242281 B CN 106242281B CN 201610621240 A CN201610621240 A CN 201610621240A CN 106242281 B CN106242281 B CN 106242281B
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The present invention relates to a kind of wide spectrum high-absorbility black glasses and its preparation method and application.The wide spectrum high-absorbility black glass is prepared from the following materials according to parts by weight: 40~60 parts of iron tailings, 5~15 parts of silica, 2~5 parts of sodium carbonate, 5~10 parts of magnesia, 10~20 parts of aluminium hydroxide, 0.5~1 part of calgon, 1~2 part of potassium carbonate, 10~20 parts of calcium carbonate, 2~3 parts of titanium dioxide.Preparation step includes ingredient mixing, high temperature melting, molding and annealing.Test result shows, black glass flexural strength produced by the present invention is big, reaches 100~140Mpa, has high absorptivity in the spectral region of 250nm-2500nm wide, reach 90% or more, can be applied to prepare solar energy heat absorbing material and building thermal-insulation energy-saving material etc..
Description
Technical field
The invention belongs to glass material field, it is related to a kind of wide spectrum high-absorbility black glass and preparation method thereof and answers
With.
Background technique
Wide spectrum high-absorbility black glass can be used for the industries such as solar energy, building, decoration, the suction to infrared band
High income can store the heat of solar energy and be used.Thus developing has high absorption coefficient, performance stabilization, technique letter
Just, low in cost, integrate structural material and the black glass of heat-absorbing material is of great significance.
The production technology of existing some black glasses, such as the application for a patent for invention of publication number CN101054263A, use
Borosilicate glass and colorant cobalt ions, the raw material that the cost is relatively high such as chromium ion and copper ion；Publication number
The application for a patent for invention of CN101857367, the black glass joined relatively expensive cobalt oxide and chromium oxide coloring
Agent, and technique is cumbersome will be heat-treated and carry out crystallization nucleation, even if the devitrified glass flexural strength highest being prepared is also only
138Mpa can be reached, and the absorptance of glass is not illustrated in patent, the absorption of light is also only showed only as to visible
The absorption of light.
In addition, iron tailings is the waste after ore dressing, iron tailings not only pollutes environment, endangers the life and property of the people
Safety, and also take up a large amount of soil, waste of resource.According to incompletely statistics, the tailing and barren rock that the whole world is discharged every year exist
10000000000 tons or more, the comprehensive utilization ratio of China's tailing is only 7% or so at present, and the iron tailings of stockpiling is up to more than ten00000000 tons.Cause
This, comprehensively utilizes resource of tailings, is allowed to turn waste into wealth, turn bane into boon, and is the important channel for realizing Sustainable Development of Mineral Resource.
Iron content in iron tailings is sampled lower for Iron industry, but high absorptance filter glass higher for iron-content is
Best raw material, iron tailings silica also rich in, is the main component of glass, therefore can be used as primary raw material use
It is and low in cost in production black glass.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiency of the prior art, provide one kind with iron tailings
For the wide spectrum high-absorbility black glass and its preparation method and application of primary raw material.The black glass intensity is high,
The light wave absorptivity of 250nm-2500nm wave band is high.
It is set forth above to solve the problems, such as, the technical scheme adopted by the invention is as follows:
A kind of wide spectrum high-absorbility black glass, which is characterized in that according to parts by weight, be made of following raw materials:
40~60 parts of iron tailings, 5~15 parts of silica, 2~5 parts of sodium carbonate, 5~10 parts of magnesia, aluminium hydroxide 10
~20 parts, 0.5~1 part of calgon, 1~2 part of potassium carbonate, 10~20 parts of calcium carbonate, 2~3 parts of titanium dioxide.
According to the above scheme, it is preferable that the flexural strength of the wide spectrum high-absorbility black glass reaches 100~
140Mpa；Wide spectrum high-absorbility black glass in 250nm~2500nm wide spectral region, absorptivity reach 90% with
On.
According to the above scheme, it is preferable that the ingredient of the iron tailings is by mass percentage are as follows:
SiO2: 60~70%, Fe2O3: 10~25%, Al2O3: 3~10%, Na2O:0~4%, P2O5: 0~1%, V2O5:
0~1%, BaO:0~1.5%.
The present invention also provides a kind of preparation methods of above-mentioned wide spectrum high-absorbility black glass, which is characterized in that including
Following steps:
(1) according to parts by weight, following raw materials are uniformly mixed:
40~60 parts of iron tailings, 5~15 parts of silica, 2~5 parts of sodium carbonate, 5~10 parts of magnesia, aluminium hydroxide 10
~20 parts, 0.5~1 part of calgon, 1~2 part of potassium carbonate, 10~20 parts of calcium carbonate, 2~3 parts of titanium dioxide, are mixed
Material；
(2) mixture for obtaining step (1) is melted, the glass metal after being melted；
(3) glass metal after melting is poured into mold, after to be formed, annealing is cooled to room temperature, and obtains the suction of wide spectrum height
Yield black glass.
According to the above scheme, it is preferable that iron tailings raw material described in step (1) passes through break process before mixing, specifically
Are as follows: it is sieved with 100 mesh sieve after pulverizing and jevigating, then carries out drying and processing.
According to the above scheme, it is preferable that described in step (2) be melted temperature be 1400~1500 DEG C, soaking time be 1~
4 hours.
According to the above scheme, it is preferable that the heating rate being melted described in step (2) is 3~8 DEG C/min.
According to the above scheme, it is preferable that mold described in step (3) is graphite jig, by heat treatment, heating temperature
It is 200~400 DEG C.
According to the above scheme, it is preferable that annealing temperature described in step (3) is 550~600 DEG C, and soaking time is 2~3 small
When.
The invention further relates to above-mentioned wide spectrum high-absorbility black glasses to prepare solar energy heat absorbing material or building heat preservation
Application on energy-saving material.
Compared with the prior art, beneficial effects of the present invention are as follows:
(1) the advantages of wide spectrum high-absorbility black glass that the present invention obtains are as follows: flexural strength up to 100~140MPa,
It is higher than 90% in the light wave absorptivity of 250nm-2500nm wave band, can be used for preparing solar energy heat absorbing material and building heat preservation section
Energy material etc..
(2) present invention is without using the metal oxides such as the relatively expensive cobalt chromium of price as colorant, but with iron tail
Mine is primary raw material, by the way that silica, sodium carbonate, magnesia, aluminium hydroxide, calgon, potassium carbonate, carbonic acid is added
The auxiliary materials such as calcium, titanium dioxide play the effects of quenched, fluxing, wide spectrum high-absorbility black glass black hues obtained
Pure, glossiness is high.
(3) preparation method simple process of the present invention needs not move through heat treatment, crystallization coring again, black glass obtained
Just there is very high flexural strength.
(4) iron tailings is the waste after ore dressing, is used for preparing glass, can replace part of silica, oxidation
The conventional raw materials such as aluminium, di-iron trioxide, to reduce cost of material.The present invention is used to prepare black glass using it as primary raw material
Production cost can be greatly reduced in glass, realize waste utilization, turn waste into wealth.
Detailed description of the invention
Fig. 1 is the DSC map of the wide spectrum high-absorbility black glass of embodiment preparation.
Fig. 2 is the wide spectrum high-absorbility black glass of embodiment preparation through map.
Fig. 3 is the reflection map of the wide spectrum high-absorbility black glass of embodiment preparation.
Fig. 4 is the absorption map of the wide spectrum high-absorbility black glass of embodiment preparation.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Embodiment
The iron tailings that the present embodiment is selected samples insufficient waste material after certain iron ore beneficiation, utilizes X Axios
Advanced X-ray fluorescence spectra analyzes its chemical component, learns its ingredient by mass percentage are as follows:
SiO2: 63.76%, Al2O3: 5.25%, Na2O:2.93%, P2O5: 0.50%, V2O5: 0.87%, BaO:
1.17%, Fe2O3: 23.49%, remaining is impurity component.
Wide spectrum high-absorbility black glass is prepared using above-mentioned iron tailings, the specific steps are as follows:
(1) raw material is broken: above-mentioned iron tailings is crushed, it is levigate, and it sieves with 100 mesh sieve, drying is stand-by；
(2) ingredient: by the above-mentioned iron tailings handled well and other raw materials by following formula weighing and burdens:
43.56 grams of iron tailings, 1.38 grams of silica 1,2.39 grams of sodium carbonate, 7.2 grams of magnesia, aluminium hydroxide 14.85
Gram, 0.87 gram of calgon, 1.84 grams of potassium carbonate, 15.63 grams of calcium carbonate, 2.39 grams of titanium dioxide, will be upper with ceramic mortar
The raw material prepared is stated to mix to uniform.
(3) it is melted: mixture being put into Muffle furnace and carries out melted, 1400 DEG C of glass melting temperature is warming up to 3 DEG C/min, protects
Temperature 2 hours, the glass metal after being melted；
(4) it forms and anneals: the glass metal after melting pours into the graphite jig of heating to (mold electricity consumption stove heating is extremely
300 DEG C or so), after molding to be cooled, glass block is put into the annealing furnace for set temperature and is annealed, annealing temperature 550
DEG C, soaking time is 2 hours, and then, furnace cooling to room temperature obtains black glass.
A series of tests are carried out to black glass made from the present embodiment, as a result as shown in Figure 1, Figure 2, Figure 3, Figure 4.
Fig. 1 is the DSC map of the filter glass material, and as seen from the figure, the glass transformation temperature of this filter glass is 665 DEG C, is melted
Melting temperature is 1190 DEG C.
Fig. 2, Fig. 3 are respectively light wave transmitance and reflectivity spectrogram of the filter glass in 250nm-2500nm.
Fig. 4 is the absorptance spectrogram of the filter glass, but data do not measure not instead of directly in figure, by calculating this filter glass
Transmitance (T%) and reflectivity (R%) and obtain.Light its light transmittance (T%), reflectivity (R%) when passing through any medium
According to law of conservation of energy, there are following relationships that (A%=1- is calculated in: T%+R%+A%=1 between absorptivity (A%)
T%-R%).This filter glass is higher in the absorptance of 250nm-2500nm wave band as seen from Figure 4, is concentrated mainly on 90%-
Between 93%.
In addition, the anti-folding of black glass made from the present embodiment is strong by the three-point bending anti-folding test of universal testing machine
Degree reaches 125.52MPa.
Claims (9)
1. a kind of wide spectrum high-absorbility black glass, which is characterized in that according to parts by weight, be made of following raw materials: iron tail
40~60 parts of mine, 5~15 parts of silica, 2~5 parts of sodium carbonate, 5~10 parts of magnesia, 10~20 parts of aluminium hydroxide, six inclined phosphorus
0.5~1 part of sour sodium, 1~2 part of potassium carbonate, 10~20 parts of calcium carbonate, 2~3 parts of titanium dioxide；
The ingredient of the iron tailings is by mass percentage are as follows: SiO2: 60~70%, Fe2O3: 10~25%, Al2O3: 3~
10%, Na2O:0~4%, P2O5: 0~1%, V2O5: 0~1%, BaO:0~1.5%, the sum of each composition quality percentage are
100%.
2. a kind of wide spectrum high-absorbility black glass according to claim 1, which is characterized in that its flexural strength reaches
To 100~140Mpa；In 250nm~2500nm wide spectral region, absorptivity reaches wide spectrum high-absorbility black glass
To 90% or more.
3. the preparation method of wide spectrum high-absorbility black glass described in any one of claim 1~2, which is characterized in that packet
Include following steps: (1) according to parts by weight, following raw materials being uniformly mixed: 40~60 parts of iron tailings, 5~15 parts of silica,
2~5 parts of sodium carbonate, 5~10 parts of magnesia, 10~20 parts of aluminium hydroxide, 0.5~1 part of calgon, 1~2 part of potassium carbonate,
10~20 parts of calcium carbonate, 2~3 parts of titanium dioxide, obtain mixture；(2) mixture for obtaining step (1) is melted, and is melted
Glass metal after melting；(3) glass metal after melting is poured into mold, after to be formed, annealing is cooled to room temperature, obtains wide light
Compose high-absorbility black glass.
4. the preparation method of wide spectrum high-absorbility black glass according to claim 3, which is characterized in that step
(1) the iron tailings raw material described in passes through break process before mixing, specifically: it sieves with 100 mesh sieve, then is dried after pulverizing and jevigating
Dry-cure.
5. the preparation method of wide spectrum high-absorbility black glass according to claim 3, which is characterized in that step
(2) the melted temperature described in is 1400~1500 DEG C, and soaking time is 1~4 hour.
6. the preparation method of wide spectrum high-absorbility black glass according to claim 5, which is characterized in that step
(2) the melted heating rate described in is 3~8 DEG C/min.
7. the preparation method of wide spectrum high-absorbility black glass according to claim 3, which is characterized in that step
(3) mold described in is graphite jig, and by heat treatment, heating temperature is 200~400 DEG C.
8. the preparation method of wide spectrum high-absorbility black glass according to claim 3, which is characterized in that step
(3) annealing temperature described in is 550~600 DEG C, and soaking time is 2~3 hours.
9. the application of wide spectrum high-absorbility black glass described in any one of claim 1~2, which is characterized in that be applied to
It prepares on solar energy heat absorbing material or building thermal-insulation energy-saving material.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107265878A (en) * | 2017-06-06 | 2017-10-20 | 界首市七曜新能源有限公司 | High transmission rate solar water heater vacuum pipe special |
| CN110128105A (en) * | 2019-04-04 | 2019-08-16 | 河北工业大学 | Iron tailings based black solar energy heat absorbing ceramics and preparation method thereof |
| CN110194653B (en) * | 2019-04-04 | 2022-03-15 | 河北工业大学 | Iron tailing heat absorption functional ceramic material and preparation method thereof |
| CN112225459B (en) * | 2019-07-15 | 2022-09-30 | 国合通用测试评价认证股份公司 | Black iron tailing microcrystalline glass and preparation method thereof |
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| SU618347A1 (en) * | 1977-01-12 | 1978-08-05 | Уральский Ордена Трудового Красного Знамени Политехнический Институт Имени С.М.Кирова | Black glass |
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| CN101817640A (en) * | 2009-01-24 | 2010-09-01 | 北京清迈信息材料有限公司 | Method for manufacturing microlite by using high-silicon iron tailings |
| CN101857367A (en) * | 2010-06-23 | 2010-10-13 | 浮山县晋盛新型建筑材料有限责任公司 | Black glass ceramic and production method thereof |
| CN103864309A (en) * | 2014-01-25 | 2014-06-18 | 浙江大学 | Method of preparing high-strength wear-resisting glass ceramics by utilizing iron tailings |
-
2016
- 2016-08-01 CN CN201610621240.2A patent/CN106242281B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU618347A1 (en) * | 1977-01-12 | 1978-08-05 | Уральский Ордена Трудового Красного Знамени Политехнический Институт Имени С.М.Кирова | Black glass |
| CN1263059A (en) * | 1999-01-29 | 2000-08-16 | 河北邢台晶牛玻璃股份有限公司 | Method for making microcrystalline board material by using iron milltailings |
| CN101817640A (en) * | 2009-01-24 | 2010-09-01 | 北京清迈信息材料有限公司 | Method for manufacturing microlite by using high-silicon iron tailings |
| CN101857367A (en) * | 2010-06-23 | 2010-10-13 | 浮山县晋盛新型建筑材料有限责任公司 | Black glass ceramic and production method thereof |
| CN103864309A (en) * | 2014-01-25 | 2014-06-18 | 浙江大学 | Method of preparing high-strength wear-resisting glass ceramics by utilizing iron tailings |
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