CN100369842C - Preparation method of foam glass - Google Patents
Preparation method of foam glass Download PDFInfo
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- CN100369842C CN100369842C CNB2006100416277A CN200610041627A CN100369842C CN 100369842 C CN100369842 C CN 100369842C CN B2006100416277 A CNB2006100416277 A CN B2006100416277A CN 200610041627 A CN200610041627 A CN 200610041627A CN 100369842 C CN100369842 C CN 100369842C
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Abstract
The present invention discloses a method for preparing foam glass. Firstly, the surface of the glass of a discarded cathode ray tube from which an electric gun is removed is washed, and the glass is pulverized and ground after a fluorescent layer and a grid mesh are removed; then the glass powder of the discarded cathode ray tube and chemically pure calcium carbonate are put into a ball mill for milling and mixing; compounding ingredients which are uniformly mixed are loaded into a mold, and are heated from the room temperature to 500 DEG C at a heating rate of 8 DEG C per minute; after being foamed by heating from 500 DEG C to 710-730 DEG C at a heating rate of 10 to 12 DEG C per minute, the foamed compounding ingredients is cooled to 600 DEG C at a cooling rate of 20 DEG C per minute; finally, the cooled compounding ingredients is slowly cooled and annealed to the room temperature at a rate of 1 DEG C per minute, then the foam glass can be obtained. The discarded cathode ray tube is used as the main material of the present invention, so that the method is favorable to waste utilization and environmental protection, with low preparation temperature; as a result of comparison, the temperature of the method for preparing foam glass of the present invention is lower than the temperature of the homogeneous production method, and the foam glass prepared by using the method of the present invention has uniform air holes and bulk density.
Description
Technical field
The present invention relates to a kind of preparation method of glass, particularly a kind of preparation method of multicellular glass.
Background technology
Multicellular glass is the heat insulation of a kind of superior performance, sound absorption, protection against the tide, the novel environmental-friendly construction material of waterproof light.The physical strength of finding multicellular glass in the practical application is lower, and this has limited the use range of multicellular glass greatly.Multicellular glass adopts waste plate glass usually, container glass, and flyash etc. are produced for main raw material, and the most frequently used whipping agent is a carbon black.About more as the relevant report of whipping agent with carbon black, and domestic each factory mostly adopts cullet, container glass, and flyash is produced multicellular glass, technical maturity.Nanjing University is a main raw material with cullet and flyash, is that whipping agent has prepared crystallite foam glass with lime carbonate, glass powder, flyash and the nonmetalliferous ore that grinds is added the laggard row of entry mix; Containing compression moulding under the condition of moisture content, then oven dry; Put into kiln and fire, the blank excision forming after will firing then.Its shortcoming is except that glass powder and flyash, has also added nonmetalliferous ore, and manufacturing cost is higher.Used nonmetalliferous ore has alkali feldspar, silica sand, soda ash and calcite, and has adopted compression moulding, complex manufacturing technology.
In DE 19702560A1, once introduced the production method of utilizing some cathode tubes to produce foam glass particle, this method is mainly used cathode-ray tube glass, it is pulverized interpolation whipping agent and auxiliary agent and binding agent, add entry, mix, by in rotary kiln, firing particulate state multicellular glass behind the granulation formation, be mainly used in the aggregate of light-weight building lagging material.The multicellular glass that this method is made can not be used as building bearing walling material (sheet material), complex manufacturing technology.Aspect useless colour picture tube utilizes, field English good general weight percent is 90～96% teletron glass powder, and 1～2% carbon black, 0.5～2% coke powder, 1.5～4% borax, 1～2% zinc oxide is packed into and has been prepared multicellular glass behind the mould under 770～850 ℃, and this preparation method has not only increased manufacturing cost, and the multicellular glass intensity of making is low.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, providing a kind of is main raw material with the waste and old cathode x ray tube, need not add any additives again, and the preparation method of the multicellular glass that preparation temperature is low, the multicellular glass physical strength height that makes according to preparation method of the present invention, pore is even, and volume density is little, and heat insulating effect is good.
For achieving the above object, the technical solution used in the present invention is: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 200～300 mesh sieves; Then, with weight percent is that 94～97% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 3～6% chemical pure lime carbonate and mixed, the ball milling time is 30～60 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 20～60 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 10～12 ℃/minute temperature rise rate from 500 ℃ rise to 710～730 ℃ and be incubated 20～40 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 20～60 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
Because the present invention is a main raw material with the waste and old cathode x ray tube, helps utilization of waste material, the protection environment; and preparation temperature is lower; the result shows preparation method of the present invention than low 10～50 ℃ of similar production process temperatures, and the multicellular glass pore of preparation is even, and volume density is little.
Embodiment
Embodiment 1: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 200 mesh sieves; Then, with weight percent is that 95% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 5% chemical pure lime carbonate and mixed, the ball milling time is 30 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 20 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 10 ℃/minute temperature rise rate from 500 ℃ rise to 715 ℃ and be incubated 30 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 40 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
The dependence test performance is:
Apparent density: 0.28gcm
-3
Average bubble diameter: 0.89mm;
Folding strength: 0.34Mpa.
Embodiment 2: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 300 mesh sieves; Then, with weight percent is that 97% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 3% chemical pure lime carbonate and mixed, the ball milling time is 40 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 30 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 11 ℃/minute temperature rise rate from 500 ℃ rise to 725 ℃ and be incubated 30 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 40 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
The dependence test performance is:
Apparent density: 0.35gcm
-3
Average bubble diameter: 0.84mm;
Folding strength: 0.37Mpa.
Embodiment 3: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 250 mesh sieves; Then, with weight percent is that 94% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 6% chemical pure lime carbonate and mixed, the ball milling time is 50 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 60 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 12 ℃/minute temperature rise rate from 500 ℃ rise to 715 ℃ and be incubated 25 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 60 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
The dependence test performance is:
Apparent density: 0.24gcm
-3
Average bubble diameter: 0.91mm;
Folding strength: 0.31Mpa;
Embodiment 4: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 230 mesh sieves; Then, with weight percent is that 96% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 4% chemical pure lime carbonate and mixed, the ball milling time is 60 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 40 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 12 ℃/minute temperature rise rate from 500 ℃ rise to 710 ℃ and be incubated 40 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 20 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
Embodiment 5: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 270 mesh sieves; Then, with weight percent is that 95% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 5% chemical pure lime carbonate and mixed, the ball milling time is 30 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 50 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 10 ℃/minute temperature rise rate from 500 ℃ rise to 720 ℃ and be incubated 20 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 30 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
Embodiment 6: at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 290 mesh sieves; Then, with weight percent is that 97% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 3% chemical pure lime carbonate and mixed, the ball milling time is 45 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 45 minutes from room temperature with 8 ℃/minute temperature rise rates; Again with 11 ℃/minute temperature rise rate from 500 ℃ rise to 730 ℃ and be incubated 36 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 35 minutes; At last, with 1 ℃/minute speed slowly cooling be annealed to room temperature and promptly obtain multicellular glass.
The present invention as whipping agent, is that main raw material prepare multicellular glass with the waste and old cathode x ray tube with lime carbonate, need not add any additives again, and its blowing temperature is than low 10～50 ℃ of similar technology.On the one hand, recycle waste, protected environment; On the other hand, preparation temperature is lower than similar technology, has saved the energy and production cost.
Claims (7)
1. the preparation method of a multicellular glass is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 200～300 mesh sieves;
2) then, with weight percent is that 94～97% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 3～6% chemical pure lime carbonate and mixed, the ball milling time is 30～60 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 20～60 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 10～12 ℃/minute temperature rise rate from 500 ℃ rise to 710～730 ℃ and be incubated 20～40 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 20～60 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
2. the preparation method of a kind of multicellular glass according to claim 1 is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 200 mesh sieves;
2) then, with weight percent is that 95% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 5% chemical pure lime carbonate and mixed, the ball milling time is 30 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 20 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 10 ℃/minute temperature rise rate from 500 ℃ rise to 715 ℃ and be incubated 30 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 40 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
3. the preparation method of a kind of multicellular glass according to claim 1 is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 300 mesh sieves;
2) then, with weight percent is that 97% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 3% chemical pure lime carbonate and mixed, the ball milling time is 40 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 30 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 11 ℃/minute temperature rise rate from 500 ℃ rise to 725 ℃ and be incubated 30 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 40 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
4. the preparation method of a kind of multicellular glass according to claim 1 is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 250 mesh sieves;
2) then, with weight percent is that 94% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 6% chemical pure lime carbonate and mixed, the ball milling time is 50 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 60 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 12 ℃/minute temperature rise rate from 500 ℃ rise to 715 ℃ and be incubated 25 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 60 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
5. the preparation method of a kind of multicellular glass according to claim 1 is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 230 mesh sieves;
2) then, with weight percent is that 96% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 4% chemical pure lime carbonate and mixed, the ball milling time is 60 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 40 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 12 ℃/minute temperature rise rate from 500 ℃ rise to 710 ℃ and be incubated 40 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 20 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
6. the preparation method of a kind of multicellular glass according to claim 1 is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 270 mesh sieves;
2) then, with weight percent is that 95% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 5% chemical pure lime carbonate and mixed, the ball milling time is 30 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 50 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 10 ℃/minute temperature rise rate from 500 ℃ rise to 720 ℃ and be incubated 20 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 30 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
7. the preparation method of a kind of multicellular glass according to claim 1 is characterized in that:
1) at first, the glass surface of removing the useless cathode tube behind the electron beam gun is cleaned, and remove fluoresent coating and aperture plate, carry out fragmentation, grind and also cross 290 mesh sieves;
2) then, with weight percent is that 97% above-mentioned useless cathode-ray tube glass powder is put into the ball mill ball milling with 3% chemical pure lime carbonate and mixed, the ball milling time is 45 minutes, then the admixtion that mixes is packed in the mould, rise to 500 ℃ and be incubated 45 minutes from room temperature with 8 ℃/minute temperature rise rates;
3) again with 11 ℃/minute temperature rise rate from 500 ℃ rise to 730 ℃ and be incubated 36 minutes and foam after, with 20 ℃/minute rate of cooling it is cooled to 600 ℃, and is incubated 35 minutes;
4) last, be annealed to room temperature with the slow cooling of 1 ℃/minute speed and promptly obtain multicellular glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100416277A CN100369842C (en) | 2006-01-10 | 2006-01-10 | Preparation method of foam glass |
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| CNB2006100416277A CN100369842C (en) | 2006-01-10 | 2006-01-10 | Preparation method of foam glass |
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| CN100369842C true CN100369842C (en) | 2008-02-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10052623B2 (en) | 2015-06-29 | 2018-08-21 | Industrial Technology Research Institute | Inorganic material for removing harmful substance from wastewater and method of preparing the same, and method for wastewater treatment |
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| CN101298369B (en) * | 2008-04-30 | 2010-06-09 | 陕西科技大学 | Preparation for producing foamed glass from waste liquid crystal display glass |
| CN102001829B (en) * | 2009-08-31 | 2012-02-08 | 海洋王照明科技股份有限公司 | Cellular glass containing gold nano particles and preparation method thereof |
| CN102173582A (en) * | 2011-02-25 | 2011-09-07 | 东华大学 | Media glass used for infrared heating coating and preparation method thereof |
| CN102838281A (en) * | 2012-09-28 | 2012-12-26 | 刘立强 | Method for preparing foam glass from fly ash and waste glass |
| CN102887623A (en) * | 2012-10-30 | 2013-01-23 | 江苏正禾新型墙体材料有限公司 | Preparation method of color foam glass |
| CN102992594B (en) * | 2012-12-27 | 2014-12-17 | 郑小华 | Cyclic preparation method of low-temperature high-strength corrosion-resistant large-density foam glass |
| CN103951260B (en) * | 2014-04-16 | 2016-06-01 | 中国科学技术大学 | A kind of energy-saving open celled foam glass and its preparation method |
| CN104230171A (en) * | 2014-09-18 | 2014-12-24 | 苏州新协力环保科技有限公司 | Novel foam glass and preparation technology thereof |
| CN105800945A (en) * | 2016-02-05 | 2016-07-27 | 北京大学 | Foamed heat insulation material and preparation method thereof |
| CN106146024A (en) * | 2016-08-04 | 2016-11-23 | 陕西科技大学 | A kind of preparation method of basalt porous insulation material |
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|---|---|---|---|---|
| CN1194629A (en) * | 1996-03-29 | 1998-09-30 | 安德鲁·昂格莱德 | Foamed glass article for preparing surfaces, use therefor, and method of making same |
| CN1583635A (en) * | 2004-06-11 | 2005-02-23 | 北京工业大学 | Hard-shell layer foaming glass and preparing method thereof |
| CN1603266A (en) * | 2004-11-01 | 2005-04-06 | 中国建筑材料科学研究院 | Preparation method for foamed glass and special-purpose foaming kiln thereof |
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2006
- 2006-01-10 CN CNB2006100416277A patent/CN100369842C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194629A (en) * | 1996-03-29 | 1998-09-30 | 安德鲁·昂格莱德 | Foamed glass article for preparing surfaces, use therefor, and method of making same |
| CN1583635A (en) * | 2004-06-11 | 2005-02-23 | 北京工业大学 | Hard-shell layer foaming glass and preparing method thereof |
| CN1603266A (en) * | 2004-11-01 | 2005-04-06 | 中国建筑材料科学研究院 | Preparation method for foamed glass and special-purpose foaming kiln thereof |
Non-Patent Citations (1)
| Title |
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| 废旧家电处理有了技术方案. 摘自环网.中国资源综合利用. 2004 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10052623B2 (en) | 2015-06-29 | 2018-08-21 | Industrial Technology Research Institute | Inorganic material for removing harmful substance from wastewater and method of preparing the same, and method for wastewater treatment |
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| CN1807313A (en) | 2006-07-26 |
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