CN1030565A - Manufacturing pearlite foam glass - Google Patents
Manufacturing pearlite foam glass Download PDFInfo
- Publication number
- CN1030565A CN1030565A CN 87104277 CN87104277A CN1030565A CN 1030565 A CN1030565 A CN 1030565A CN 87104277 CN87104277 CN 87104277 CN 87104277 A CN87104277 A CN 87104277A CN 1030565 A CN1030565 A CN 1030565A
- Authority
- CN
- China
- Prior art keywords
- perlite
- total amount
- powder
- foam glass
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000011494 foam glass Substances 0.000 title claims abstract description 10
- 229910001562 pearlite Inorganic materials 0.000 title claims abstract description 9
- 239000010451 perlite Substances 0.000 claims abstract description 25
- 235000019362 perlite Nutrition 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 230000002829 reductive effect Effects 0.000 claims abstract description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 16
- 238000001816 cooling Methods 0.000 description 13
- 238000000137 annealing Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- WBHQBSYUUJJSRZ-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [H+].[H+].[Na+].[O-]S([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000005332 obsidian Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- -1 sodium aluminum fluoride Chemical compound 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
A kind of manufacturing pearlite foam glass that is widely used in sound-absorbing, insulation, the waste material with pearlstone in the tail powder of exploiting mineral perlite process and the production adds whipping agent, reductive agent.Sintering forms.Utilize waste residue to reduce cost.
Description
The invention belongs to the new raw material of multicellular glass, be used for sound-absorbing, insulation aspect.
Making multicellular glass at present is raw material with glass powder all, and glass powder is obtained by industrial glass and domestic glass fragmentation, also valuable mineral raw material instead of part glass powder.Speciallyying permit out the clear 31-3533 of former bulletin, obsidian as Japan adds solubility promoters such as glass powder, pure fibre, fluorite, sodium aluminum fluoride and whipping agent and makes multicellular glass.
The objective of the invention is to all utilize the natural mineral perlite as raw material, particularly utilize the perlite waste material, needn't pass through grinding and processing, utilize waste residue, reduced cost.
Being constructed as follows of manufacturing pearlite foam glass: with meticulous tail powder and the pearlstone production waste micro mist of exploitation mineral perlite is raw material, and adding simultaneously with the saltcake is whipping agent, and adding is a reductive agent with graphite.
With the following waste material micro mist of 80 orders is a raw material in tail powder below exploitation mineral perlite 80 orders and the pearlstone production, consumption is 2%～4% of a perlite powder total amount when being whipping agent with the saltcake, consumption is 0.05～0.15% of a perlite powder total amount when being reductive agent with graphite.
Optimum amount was 3% of a perlite powder total amount when its adding saltcake was whipping agent, and optimum amount was 0.1% of a perlite powder total amount when adding graphite was reductive agent.(being weight percentage)
Used perlite composition range in the compounding method of manufacturing pearlite foam glass:
SiO
268～77% Al
2O
311～13.5%
Fe
2O
32.0% following CaO 0.5～2%
K
2O 2～5% Mgo 0～1%
Na
2O 1～3.5% loss on ignition 3～6.5%
Cause is that waste material, tail powder all can pass through 80 mesh sieves, grinding and processing again.
The perlite softening temperature is high than general industry and daily silicate glass, and general whipping agent is all inapplicable.Manufacturing pearlite foam glass of the present invention is with thenardite (Na
2SO
4) (industrial) be high-temperature foaming agent, consumption is 2～4% of a perlite powder total amount, and adds the reductive agent Graphite Powder 99, consumption is 0.05～0.15% of a perlite powder total amount.By after the above-mentioned weight percent raw materials weighing, in ball mill, mixed 4～6 hours.The saltcake decomposition temperature is higher, begin in the time of 1120 ℃ to decompose, just decomposed 9.8% in following 3 hours at 1200 ℃, add the reductive agent Graphite Powder 99, can promote the decomposition of saltcake, just begin to decompose at 800 ℃, 1040 ℃ of decomposition are the most violent, this temperature is on the occasion of perlitic blowing temperature, and the gas that saltcake decomposes is wrapped up by the remollescent perlite, forms multicellular glass.
With the admixtion dress mould that mixes, can send into foaming in the kiln, the admixtion loadings is 30%～40% of a mould capacity.
Burn till foaming, burn till and to boil and carry out in formula gas furnace, the oil oven boil formula electric furnace or horse of horse, require that the temperature difference is not more than 20～30 ℃ in the stove.
Calcining system is divided into heating, foaming, stable, annealing four-stage.
Heating phase should not be too fast, prevents that the powder internal-external temperature difference is excessive, but also should not be slow excessively, prevents the graphite premature oxidation.Suitable heat-up rate is 3～8 ℃/minute, and furnace atmosphere requires reduction or neutral, should not use oxidizing atmosphere.
Blowing temperature is 1100～1120 ℃.120～150 ℃ promptly are the stage of being rapidly heated, 5～10 ℃/minute of heat-up rates from 970～1100 ℃ before blowing temperature.Because of whipping agent is not just to decompose or react at blowing temperature, but begun to decompose and reaction in lower temperature.At this temperature range overstand, decompose or react the gas of generation, to from the space of the solid powder that do not become glassy phase as yet, overflow, seldom unit weight is just big to obtain the foams gas phase like this, only be rapidly heated, when whipping agent produced a large amount of gas, perlite powder also began to form the remollescent glassy phase, and gas is that remollescent perlite glass wraps up and can not overflow and can obtain the many multicellular glass of gas phase.When temperature is raised to blowing temperature, need insulation 40～60 minutes, gas phase is fully produced, it is perfect to foam.
Steady stage i.e. 1100～800 ℃ of intervals of fast cooling stages of expressing one's gratification again, the speed of cooling with 15～20 ℃/minute cools down multicellular glass, its purpose is solidified glass cools, and the foam stabilization of formation is between 800～600 ℃, cooling rate can be slow slightly, is generally 5～7 ℃/minute.
Annealing stage is very big to the intensity effect of multicellular glass, because of multicellular glass is porous material, and poor thermal conductivity, so it is slow that annealing speed is wanted, between 600～400 ℃, cooling rate is 0.7～1 ℃/minute, below 400 ℃, naturally cools to room temperature in annealing furnace.
The manufacturing pearlite foam glass that adopts compounding method of the present invention to obtain, its performance is: 300～450 kilograms/meter of unit weights
3, 31.6～36.1 kilograms/meter of ultimate compression strength
3(340～414 kilograms/meter of unit weights
3) 0.0566～0.059 kilocalorie/mph of thermal conductivity degree (383～417 kilograms/meter of unit weights
3), volume water absorption rate 2.5～2.9%(unit weight was 355～390 kilograms/meter in one hour
3) 355～390 kilograms/meter of 15 days volume water-intake rate 6.6～7.4%(unit weights
3), weight loss 0～2.5% behind 15 circulating freezing resistances, 550 ℃ of maximum operation (service) temperatures.
Pearlstone foamed foam glass of the present invention owing to utilize waste residue that cost is reduced, can be widely used in sound-absorbing, insulation aspect.
Example 1: adopt the composition of perlite waste material to be:
Al
2O
312.14% SiO
274.5%
CaO 0.844% Fe
2O
31.18%
Na
2O 2.83% MgO 0.29%
Loss on ignition 4.54%(weight percentage).
By 80 mesh sieves, other adds 2% thenardite (industrial), 0.07% Graphite Powder 99, mixes 6 hours in ball mill, and admixtion is contained in the fireproof die, and charge amount is 35% of a mould capacity.The mould of charged is sent in the kiln, be heated to 980 ℃ with 5 ℃/minute heat-up rates, be warmed up to 1100 ℃ with 8 ℃/minute heat-up rate again, be incubated 50 minutes down at 1100 ℃, cool to 800 ℃ with 15 ℃/minute speed of cooling then, drop to 600 ℃ with 5 ℃/minute speed of cooling again, anneal, in annealing furnace, naturally cool at last room temperature, depanning with 1 ℃/minute speed of cooling in 600 ℃～400 ℃ intervals.
Example 2: adopting the composition of perlite waste material is SiO
276.4%
Al
2O
313.18% Fe
2O
30.995
CaO 0.93% K
2O 2.38%
Loss on ignition 6.11%(weight percentage) by 80 mesh sieve, other adds 3% thenardite (industrial), 0.1% Graphite Powder 99 and mixed in ball mill 6 hours, admixtion is contained in the mould, charge amount is 35% of a mould unit weight, the mould of charged is sent in the kiln, be heated to 980 ℃ with 5 ℃/minute heat-up rates, heat up 1100 ℃ with 8 ℃/minute heat-up rate again, 1100 ℃ of insulations 50 minutes down.Cool to 800 ℃ with 15 ℃ of/minute speed of cooling then, drop to 600 ℃ with 5 ℃ of/minute speed of cooling again, anneal with 1 ℃/minute speed of cooling, in annealing furnace, naturally cool to room temperature at last in 600 ℃～400 ℃ intervals.Depanning.
Example 3: adopting the composition of perlite waste material is SiO
276.1%
Al
2O
312.80% Fe
2O
31.39%
MgO 0.288% CaO 0.71%
K
2O 4.41% loss on ignition 4.3%(weight percentage)
By 80 mesh sieves, other adds 4% thenardite (industrial), 0.15% Graphite Powder 99 and mixed in ball mill 6 hours, charge amount is 35% of a mould unit weight, the mould of charged is sent in the kiln, with 5%/minute heat-up rate be heated to 980 ℃, again with 8 ℃/minute heat-up rate to 1100 ℃, 1100 ℃ of insulations 50 minutes down.Cool to 800 ℃ with 15 ℃/minute speed of cooling then, drop to 600 ℃ with 5 ℃ of/minute speed of cooling again, anneal with 1 ℃/minute speed of cooling, in annealing furnace, naturally cool to room temperature, depanning at last in 600 ℃～400 ℃ intervals.
Claims (3)
1, pearlstone foamedly it is characterized in that with exploitation mineral perlite meticulous tail powder and pearlstone production waste micro mist be raw material, adding simultaneously with the saltcake is whipping agent, and to add with graphite be reductive agent.
It is characterized in that with the following waste material micro mist of 80 orders is a raw material in tail powder below exploitation mineral perlite 80 orders and the pearlstone production, consumption is 2%～4% of a perlite powder total amount when being whipping agent with the saltcake according to the said manufacturing pearlite foam glass of claim 1 that 2, consumption is that 0.05～0.15%(of perlite powder total amount is weight percentage when being reductive agent with graphite)
Adding optimum quantity when 3, it is characterized in that with the saltcake for whipping agent according to claim 1,2 said manufacturing pearlite foam glass is 3% of perlite powder total amount, and adding optimum quantity with graphite during for reductive agent is 0.1% of perlite powder total amount.(weight percentage).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104277 CN1012949B (en) | 1987-06-15 | 1987-06-15 | Method for manufacturing pearlite foam glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104277 CN1012949B (en) | 1987-06-15 | 1987-06-15 | Method for manufacturing pearlite foam glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030565A true CN1030565A (en) | 1989-01-25 |
| CN1012949B CN1012949B (en) | 1991-06-26 |
Family
ID=4814810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87104277 Expired CN1012949B (en) | 1987-06-15 | 1987-06-15 | Method for manufacturing pearlite foam glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012949B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985403A (en) * | 2010-10-22 | 2011-03-16 | 无锡工艺职业技术学院 | Foaming stone insulation board and preparation method thereof |
| CN103524043A (en) * | 2013-10-09 | 2014-01-22 | 北京科技大学 | A method of producing foam glass by using cold-rolling sludge and waste glass |
| US8936850B2 (en) | 2010-07-19 | 2015-01-20 | Imerys Filtration Minerals, Inc. | Foam glass having a low coefficient of thermal expansion and related methods |
| CN113912311A (en) * | 2021-10-19 | 2022-01-11 | 信阳师范学院 | Heat-insulating sand and preparation method thereof |
-
1987
- 1987-06-15 CN CN 87104277 patent/CN1012949B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8936850B2 (en) | 2010-07-19 | 2015-01-20 | Imerys Filtration Minerals, Inc. | Foam glass having a low coefficient of thermal expansion and related methods |
| CN101985403A (en) * | 2010-10-22 | 2011-03-16 | 无锡工艺职业技术学院 | Foaming stone insulation board and preparation method thereof |
| CN103524043A (en) * | 2013-10-09 | 2014-01-22 | 北京科技大学 | A method of producing foam glass by using cold-rolling sludge and waste glass |
| CN103524043B (en) * | 2013-10-09 | 2015-05-13 | 北京科技大学 | A method of producing foam glass by using cold-rolling sludge and waste glass |
| CN113912311A (en) * | 2021-10-19 | 2022-01-11 | 信阳师范学院 | Heat-insulating sand and preparation method thereof |
| CN113912311B (en) * | 2021-10-19 | 2022-06-07 | 信阳师范学院 | Heat-insulating sand and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012949B (en) | 1991-06-26 |
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| PB01 | Publication | ||
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| GR02 | Examined patent application | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
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