CN105016620B - A kind of building heat preservation foam glass and preparation method thereof - Google Patents
A kind of building heat preservation foam glass and preparation method thereof Download PDFInfo
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- CN105016620B CN105016620B CN201510486385.1A CN201510486385A CN105016620B CN 105016620 B CN105016620 B CN 105016620B CN 201510486385 A CN201510486385 A CN 201510486385A CN 105016620 B CN105016620 B CN 105016620B
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Abstract
The present invention relates to a kind of building heat preservation foam glass and preparation method thereof, include following steps：1) parent glass powder, float glass powder, borax, saltcake, carbon dust are taken；2) preparation of foam glass batch：It is put into ball mill and grinds, it is sufficiently mixed uniformly；3) foam glass is burnt till：Foam glass batch is fitted into mould, is put into afterwards in heating furnace, fires, obtains the low-density closed-cell foam glass with uniform bubble structure.The beneficial effects of the invention are as follows：1st, utilization of waste as resource is realized；2nd, building heat preservation foam glass is prepared by raw material of molybdic tailing, the energy loss of building is reduced, while comprehensive utilization and processing also for molybdic tailing provides an important channel；3rd, in addition to can be with insulation, also with sound insulation, absorb radiation, acid-alkali-corrosive-resisting many advantages, such as, be a kind of building thermal insulation material with applications well prospect.
Description
Technical field
The present invention relates to utilization of waste as resource and building thermal-insulation energy-saving field, a kind of particularly building heat preservation bubble
Foam glass and preparation method thereof.
Background technology
Due to the anxiety of the energy, it is the realistic choice that resource constraint is alleviated in China to save the energy.China supports energy-conservation energetically
Emphasis and demonstrative project, encourage the popularization and application of energy-efficient product.In terms of building energy conservation, actively push forward existing building section
It can transform, widely use novel wall material.Foam glass be a kind of porosity prepared with sintering process more than 90% and with
Insulating porous glass material based on closed air bubbles.It has that high mechanical strength, thermal conductivity factor are small, thermal property is stable, heat is swollen
Swollen coefficient is low, do not burn, indeformable, long service life, operating temperature range is wide, decay resistance is strong, do not absorb water, not moisture-inhibiting,
Not by insect pest, easy processing can sawing, construction extremely facilitate the advantages of, be a kind of insulation of good performance and sound absorption energy-conservation
Environment-friendly materials, are also the high-strength building material and ornament materials of a kind of lightweight
Molybdic tailing is a kind of mineral products amount few, function admirable and widely used and quite wide in branch of China.Molybdic tailing be
Exploitation, discharge after sorting ore, and the solid or powdered scrap that can not be temporarily utilized, including Molybdenum Mine mine tailing and select factory
Mine tailing, wherein mill tailings include the poor value that the association country rock produced and midway are rejected；Plant tailing includes
Using certain technique, the mineral waste (mine tailing) discharged after mechanical washing ore, these mine tailings are piped to Tailings Dam
Storage.Therefore, under normal circumstances, one is built while Molybdenum Mine is exploited can accommodate the whole production period discharge tails in mine
The Tailings Dam of sand, mine tailing construction investment is larger, also to take a large amount of farmlands and forest land, it is difficult to recover, also destroy the ecological balance.
In addition, tailings will be permanent threat to the woods of its underpart, field or house in storehouse.China is in exploitation high-grade molybdenum for a long time
While ore deposit, the random heap of molybdic tailing for being difficult to reclaim is abandoned, meanwhile, the also rare pertinent literature utilized on molybdic tailing now.
Chemical composition in China's molybdic tailing mainly includes：Silica, alundum (Al2O3), di-iron trioxide, calcium oxide, magnesia and
Potassium oxide etc., the total amount of these oxides accounts for more than the 95wt% of whole molybdic tailing oxide components, and most of above composition is
Prepare the when utilizable oxide of foam glass.
Molybdic tailing is used for prepare foam glass, the wasting of resources and the process problem of molybdic tailing has both been solved, has got back
A kind of building thermal insulation material of function admirable, kills two birds with one stone, with extraordinary economic benefit and social benefit.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of building heat preservation foam glass for above-mentioned prior art
And preparation method thereof, for solving the problem of difficult molybdic tailing and building energy conservation emission reduction, promote the comprehensive profit of molybdic tailing resource
With.
The present invention solves the technical scheme that is used of above-mentioned technical problem：A kind of building heat preservation foam glass, it includes
There are following components and its constituent content：In parts by mass, parent glass powder 88-92 parts, 5 parts of float glass powder, 1-4 parts of borax,
1-2 parts of saltcake, 0.2-1 parts of carbon dust, wherein, the component and its constituent content of described parent glass powder：In parts by mass, molybdenum tail
35-55 parts of ore deposit, 20-35 parts of quartz sand, 10-15 parts of lime stone, 1-4 parts of talcum, 10-15 parts of soda ash, antimony oxide 0.1-0.5
Part, 0.1-0.5 parts of sodium nitrate.
By such scheme, the fineness of described parent glass powder is, by 300 mesh sieves, to tail over as 0.5Wt%, described is floating
The fineness of method glass dust is, by 300 mesh sieves, to tail over as 0.5Wt%.
The preparation method of described building heat preservation foam glass, includes following steps：
1) in parts by mass, parent glass powder 88-92 parts, 5 parts of float glass powder, 1-4 parts of borax, 1-2 parts of saltcake, carbon dust
0.2-1 parts, feeding；
2) preparation of foam glass batch：Weigh 88-92 parts of parent glass powder, 5 parts of float glass powder, 1-4 parts of borax,
1-2 parts of saltcake, 0.2-1 parts of carbon dust is put into ball mill and grinds, mixes 2-4 hours, it is sufficiently mixed uniformly；
3) foam glass is burnt till：Foam glass batch is fitted into mould, is put into afterwards in heating furnace, first 550
30min is preheated at DEG C, blowing temperature is warming up to 5~10 DEG C/min heating rate afterwards, blowing temperature is 850~910 DEG C,
Foamed time is 20~40min；After foaming terminates, be cooled to 560 DEG C~600 DEG C, insulation is annealed for 30 minutes, then with
2-3 DEG C/min of rate of temperature fall is cooled to less than 100 DEG C, obtains the low-density closed-cell foam glass with uniform bubble structure.
By such scheme, the component and its constituent content of described parent glass powder：In parts by mass, molybdic tailing 35-55
Part, 20-35 parts of quartz sand, 10-15 parts of lime stone, 1-4 parts of talcum, 10-15 parts of soda ash, 0.1-0.5 parts of antimony oxide, nitric acid
0.1-0.5 parts of sodium, the preparation method of described parent glass powder includes following steps：
1) preparation of parent glass batch：The component of load weighted parent glass powder is put into mixer, 5- is mixed
15 minutes；
2) parent glass melts：Mixed batch is delivered in high temp glass melting furnace so that glass batch
Glass metal is fused into, melting condition is：1510-1560 DEG C of fusion temperature, is incubated 4-10 hours；
3) preparation of parent glass particle：The glass metal of high temperature melting is put into water, the glass with micro-crack is made
Particulate material is simultaneously dried, and drying condition is：210-260 DEG C of drying 0.5 hour；The granulometric range of glass is：0.2-5.5mm；
4) preparation of parent glass powder：Parent glass particle is put into ball mill and wears into glass dust, it is desirable to passes through 300 mesh
Sieve, is tailed over as 0.5Wt%.
By such scheme, the molybdic tailing fine powder that described molybdic tailing fine powder position passes through 80-160 mesh.
In the present invention, density range can be made in 150kg/m by sets itself parent glass component3~250kg/
m3, 0.8~1.8MPa of rupture strength foam glass material, even air hole distribution and for closed pore stomata is a kind of excellent exhausted
Hot insulation material.In addition, this method operating process is simple, suitable for industrialized production.
The beneficial effects of the invention are as follows：
1st, the present invention prepares building heat preservation foam glass using molybdic tailing, and molybdic tailing is that ore is size-reduced, selected rear remaining
Under fine powder grains of sand formation of solid polycomplex discarded object, with low cost, wide material sources.Molybdic tailing is processed, on the one hand can be dropped
The environmental pollution that molybdic tailing is brought realizes utilization of waste as resource with stacking safety problem, on the other hand can be in building neck
Realize building energy conservation in domain, it is to avoid energy waste.With significant economic benefit and social benefit.
2nd, the present invention to molybdic tailing by carrying out constituent analysis, it is possible to use SiO therein2Glass is carried out with the element such as K, Na
Prepared by glass, reduce artificial addition, reduce cost, improve the utilization rate of molybdic tailing.Prepare and build by raw material of molybdic tailing
Insulating foam glass is built, the energy loss of building is reduced, while comprehensive utilization and processing also for molybdic tailing provides one
Important channel.
3rd, product foam glass of the invention is a kind of light porous material, under construction in addition to can be with insulation,
Many advantages, such as also having sound insulation, absorb radiation, acid-alkali-corrosive-resisting, is a kind of building heat preservation material with applications well prospect
Material.
Embodiment
Technical scheme is described in detail below by specific embodiment.
The chemical composition of molybdic tailing in the present embodiment is entered using X Axios advanced Xray fluorescence spectrometers
Row analysis, oxide components mainly include：
| Oxide components | Content (wt%) |
| SiO2 | 71.69 |
| Al2O3 | 10.42 |
| Fe2O3 | 4.38 |
| CaO | 2.40 |
| MgO | 3.06 |
| K2O | 4.84 |
| Na2O | 0.40 |
| TiO2 | 0.83 |
| SO3 | 1.33 |
| P2O5 | 0.38 |
| MnO | 0.26 |
| It is total | 100 |
Above composition can all be utilized by when preparing molybdic tailing building heat preservation foam glass.In conjunction with the embodiments to this hair
The method that bright utilization molybdic tailing prepares building heat preservation foam glass is described in detail.
Embodiment 1
(1) molybdic tailing raw material：Field collection molybdic tailing is stacked from molybdic tailing, sieve takes 80-160 mesh molybdic tailings fine powder for preparing
Batch；
(2) parent glass formula：By mass percentage, its raw material includes following component：35 parts of molybdic tailing, quartz sand 35
Part, 10 parts of lime stone, 4 parts of talcum, 15 parts of soda ash, 0.5 part of antimony oxide, 0.5 part of sodium nitrate；
(3) preparation of parent glass batch：Each raw material is weighed by parts by weight in step (2), is put into after weighing well mixed
In conjunction machine, mix 5 minutes, you can well mixed glass batch is made；
(4) parent glass melts：Mixed batch is delivered in high temp glass melting furnace so that glass batch
Glass metal is fused into, melting condition is：1510 DEG C of fusion temperature, is incubated 4 hours；
(5) preparation of parent glass particle：The glass metal of high temperature melting is put into water, the glass with micro-crack is made
Particulate material is simultaneously dried, and drying condition is：210 DEG C of dryings 0.5 hour.The granulometric range of glass is：0.2-5.5mm；
(6) preparation of parent glass powder：Parent glass particle is put into ball mill and wears into glass dust, it is desirable to passes through 300
Mesh sieve, is tailed over as 0.5Wt%；
(7) preparation of foam glass batch：Weigh step 6) obtained 88 parts of parent glass powder, float glass powder (will
Ask by 300 mesh sieves, tail over as 0.5Wt%) 5 parts, 4 parts of borax, 2 parts of saltcake, 1 part of carbon dust is put into ball mill and grinds, mixes
2 hours, it is set to be sufficiently mixed uniformly；
(8) foam glass is burnt till：Foam glass compound is fitted into mould, is put into afterwards in heating furnace, first 550
30min is preheated at DEG C, blowing temperature is warming up to 5 DEG C/min heating rate afterwards, blowing temperature is 850 DEG C, foamed time
For 20min.After foaming terminates, 560 are cooled to, insulation is annealed for 30 minutes, then cold with 2 DEG C/min of rate of temperature fall
But to less than 100 DEG C, the low-density closed-cell foam glass with uniform bubble structure is obtained.
In the present invention, density range can be made in 250kg/m by sets itself parent glass component3, anti-folding is by force
Spend 1.8MPa foam glass material, even air hole distribution and for closed pore stomata is a kind of excellent heat-insulating material.This
Outside, this method operating process is simple, suitable for industrialized production.
Embodiment 2
(1) molybdic tailing raw material：Field collection molybdic tailing is stacked from molybdic tailing, sieve takes 80-160 mesh molybdic tailings fine powder for preparing
Batch；
(2) parent glass formula：By mass percentage, its raw material includes following component：45 parts of molybdic tailing, quartz sand 25
Part, 12.5 parts of lime stone, 2 parts of talcum, 15 parts of soda ash, 0.2 part of antimony oxide, 0.3 part of sodium nitrate；
(3) preparation of parent glass batch：Each raw material is weighed by parts by weight in step (2), is put into after weighing well mixed
In conjunction machine, mix 10 minutes, you can well mixed glass batch is made；
(4) parent glass melts：Mixed batch is delivered in high temp glass melting furnace so that glass batch
Glass metal is fused into, melting condition is：1535 DEG C of fusion temperature, is incubated 8 hours；
(5) preparation of parent glass particle：The glass metal of high temperature melting is put into water, the glass with micro-crack is made
Particulate material is simultaneously dried, and drying condition is：240 DEG C of dryings 0.5 hour.Glass particle scope is：0.2-5.5mm；
(6) preparation of parent glass powder：Parent glass particle is put into ball mill and wears into glass dust, it is desirable to passes through 300
Mesh sieve, is tailed over as 0.5Wt%；
(7) preparation of foam glass batch：Weigh step 6) obtained 90 parts of parent glass powder, float glass powder (will
Ask by 300 mesh sieves, tail over as 0.5Wt%) 5 parts, 2.5 parts of borax, 2 parts of saltcake, 0.5 part of carbon dust, be put into grinding in ball mill,
Mixing 2-4 hours, makes it be sufficiently mixed uniformly；
(8) foam glass is burnt till：Foam glass compound is fitted into mould, is put into afterwards in heating furnace, first 550
30min is preheated at DEG C, blowing temperature is warming up to 8 DEG C/min heating rate afterwards, blowing temperature is 880 DEG C, foamed time
For 30min.After foaming terminates, 580 DEG C are cooled to, insulation is annealed for 30 minutes, then with 2.5 DEG C/min of cooling speed
Rate is cooled to less than 100 DEG C, obtains the low-density closed-cell foam glass with uniform bubble structure.
In the present invention, density range can be made in 220kg/m by sets itself parent glass component3, anti-folding is by force
Spend 1.4MPa foam glass material, even air hole distribution and for closed pore stomata is a kind of excellent heat-insulating material.This
Outside, this method operating process is simple, suitable for industrialized production.
Embodiment 3
(1) molybdic tailing raw material：Field collection molybdic tailing is stacked from molybdic tailing, sieve takes 80-160 mesh molybdic tailings fine powder for preparing
Batch；
(2) parent glass formula：By mass percentage, its raw material includes following component：55 parts of molybdic tailing, quartz sand 20
Part, 12 parts of lime stone, 2.5 parts of talcum, 10 parts of soda ash, 0.2 part of antimony oxide, 0.3 part of sodium nitrate；
(3) preparation of parent glass batch：Each raw material is weighed by parts by weight in step (2), is put into after weighing well mixed
In conjunction machine, mix 15 minutes, you can well mixed glass batch is made；
(4) parent glass melts：Mixed batch is delivered in high temp glass melting furnace so that glass batch
Glass metal is fused into, melting condition is：1560 DEG C of fusion temperature, is incubated 10 hours；
(5) preparation of parent glass particle：The glass metal of high temperature melting is put into water, the glass with micro-crack is made
Particulate material is simultaneously dried, and drying condition is：260 DEG C of dryings 0.5 hour.Glass particle scope is：0.2-5.5mm；
(6) preparation of parent glass powder：Parent glass particle is put into ball mill and wears into glass dust, it is desirable to passes through 300
Mesh sieve, is tailed over as 0.5Wt%；
(7) preparation of foam glass batch：Weigh step 6) obtained 92 parts of parent glass powder, float glass powder (will
Ask by 300 mesh sieves, tail over as 0.5Wt%) 5 parts, 1 part of borax, 1 part of saltcake, 1 part of carbon dust is put into ball mill and grinds, mixes
2-4 hours, it is set to be sufficiently mixed uniformly；
(8) foam glass is burnt till：Foam glass compound is fitted into mould, is put into afterwards in heating furnace, first 550
30min is preheated at DEG C, blowing temperature is warming up to 10 DEG C/min heating rate afterwards, blowing temperature is~910 DEG C, during foaming
Between be 40min.After foaming terminates, 600 DEG C are cooled to, insulation is annealed for 30 minutes, then with 3 DEG C/min of cooling speed
Rate is cooled to less than 100 DEG C, obtains the low-density closed-cell foam glass with uniform bubble structure.
In the present invention, density range can be made in 150kg/m by sets itself parent glass component3, anti-folding is by force
Spend 0.8MPa foam glass material, even air hole distribution and for closed pore stomata is a kind of excellent heat-insulating material.This
Outside, this method operating process is simple, suitable for industrialized production.
Claims (4)
1. a kind of building heat preservation foam glass, it includes following components and its constituent content：In parts by mass, parent glass
88-92 parts of powder, 5 parts of float glass powder, 1-4 parts of borax, 1-2 parts of saltcake, 0.2-1 parts of carbon dust, wherein, described parent glass powder
Component and its constituent content：In parts by mass, molybdic tailing 35-55 parts, 20-35 parts of quartz sand, 10-15 parts of lime stone, talcum
1-4 parts, 10-15 parts of soda ash, 0.1-0.5 parts of antimony oxide, 0.1-0.5 parts of sodium nitrate, the preparation of described parent glass powder
Method includes following steps：a）The preparation of parent glass batch：The component of load weighted parent glass powder is put into mixing
In machine, mix 5-15 minutes；b）Parent glass melts：Mixed batch is delivered in high temp glass melting furnace so that
Glass batch is fused into glass metal, and melting condition is：1510-1560 DEG C of fusion temperature, is incubated 4-10 hours；c）Basic glass
The preparation of glass particle：The glass metal of high temperature melting is put into water, the glass particle material with micro-crack is made and dries, dries
Condition is：210-260 DEG C of drying 0.5 hour；Glass particle scope is：0.2-5.5 mm；d）The preparation of parent glass powder：Will
Parent glass particle, which is put into ball mill, wears into glass dust, it is desirable to by 300 mesh sieves, tails over as 0.5 Wt%.
2. building heat preservation foam glass according to claim 1, it is characterised in that the fineness of described parent glass powder is
By 300 mesh sieves, tail over as 0.5 Wt%, the fineness of described float glass powder is, by 300 mesh sieves, to tail over as 0.5 Wt%.
3. the preparation method of the building heat preservation foam glass described in claim 1, includes following steps：
1）In parts by mass, parent glass powder 88-92 parts, 5 parts of float glass powder, 1-4 parts of borax, 1-2 parts of saltcake, carbon dust 0.2-
1 part, feeding；The component and its constituent content of described parent glass powder：In parts by mass, molybdic tailing 35-55 parts, quartz sand
20-35 parts, 10-15 parts of lime stone, 1-4 parts of talcum, 10-15 parts of soda ash, 0.1-0.5 parts of antimony oxide, sodium nitrate 0.1-0.5
Part, the preparation method of described parent glass powder includes following steps：a）The preparation of parent glass batch：Will be load weighted
The component of parent glass powder is put into mixer, is mixed 5-15 minutes；b）Parent glass melts：Mixed batch is thrown
It is put into high temp glass melting furnace so that glass batch is fused into glass metal, melting condition is：Fusion temperature 1510-1560
DEG C, it is incubated 4-10 hours；c）The preparation of parent glass particle：The glass metal of high temperature melting is put into water, is made and carries fine fisssure
The glass particle material of line is simultaneously dried, and drying condition is：210-260 DEG C of drying 0.5 hour；Glass particle scope is：0.2-5.5
mm；d）The preparation of parent glass powder：Parent glass particle is put into ball mill and wears into glass dust, it is desirable to passes through 300 mesh sieves, sieve
Remaining is 0.5 Wt%；
2）The preparation of foam glass batch：Weigh 88-92 parts of parent glass powder, 5 parts of float glass powder, 1-4 parts of borax, saltcake
1-2 parts, 0.2-1 parts of carbon dust is put into ball mill and grinds, mixes 2-4 hours, it is sufficiently mixed uniformly；
3）Foam glass is burnt till：Foam glass batch is fitted into mould, is put into afterwards in heating furnace, first at 550 DEG C
30 min are preheated, blowing temperature is warming up to 5 ~ 10 DEG C/min heating rate afterwards, blowing temperature is 850 ~ 910 DEG C, hair
The bubble time is 20 ~ 40 min；After foaming terminates, be cooled to 560 DEG C ~ 600 DEG C, insulation is annealed for 30 minutes, then with
2-3 DEG C/min of rate of temperature fall is cooled to less than 100 DEG C, obtains the low-density closed-cell foam glass with uniform bubble structure
Glass.
4. the preparation method of building heat preservation foam glass according to claim 3, it is characterised in that described molybdic tailing is thin
Powder is the molybdic tailing fine powder by 80-160 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510486385.1A CN105016620B (en) | 2015-08-10 | 2015-08-10 | A kind of building heat preservation foam glass and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510486385.1A CN105016620B (en) | 2015-08-10 | 2015-08-10 | A kind of building heat preservation foam glass and preparation method thereof |
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| CN105016620B true CN105016620B (en) | 2017-07-11 |
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| CN107344864B (en) * | 2016-09-29 | 2020-11-17 | 沈阳建筑大学 | Foam heat-insulation plate and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2192397C2 (en) * | 2000-10-26 | 2002-11-10 | Специальное конструкторско-технологическое бюро "Наука" Красноярского научного центра СО РАН | Method of making porous glass material from slag |
| CN103539360A (en) * | 2013-08-27 | 2014-01-29 | 中国科学院过程工程研究所 | Silicon smelting waste residue foam microcrystalline glass and preparation method thereof |
| CN103951261A (en) * | 2014-04-22 | 2014-07-30 | 武汉理工大学 | Foam glass material with gold/copper tailings as main raw materials and preparation method thereof |
| CN104108947A (en) * | 2014-07-18 | 2014-10-22 | 中国科学院过程工程研究所 | Closed porous material made from nickel molybdenum ore beneficiation-metallurgy tailings and preparation method of closed porous material |
-
2015
- 2015-08-10 CN CN201510486385.1A patent/CN105016620B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2192397C2 (en) * | 2000-10-26 | 2002-11-10 | Специальное конструкторско-технологическое бюро "Наука" Красноярского научного центра СО РАН | Method of making porous glass material from slag |
| CN103539360A (en) * | 2013-08-27 | 2014-01-29 | 中国科学院过程工程研究所 | Silicon smelting waste residue foam microcrystalline glass and preparation method thereof |
| CN103951261A (en) * | 2014-04-22 | 2014-07-30 | 武汉理工大学 | Foam glass material with gold/copper tailings as main raw materials and preparation method thereof |
| CN104108947A (en) * | 2014-07-18 | 2014-10-22 | 中国科学院过程工程研究所 | Closed porous material made from nickel molybdenum ore beneficiation-metallurgy tailings and preparation method of closed porous material |
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