CN104860535A - Production process of large sizes and high refraction of glass beads - Google Patents
Production process of large sizes and high refraction of glass beads Download PDFInfo
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- CN104860535A CN104860535A CN201510223802.3A CN201510223802A CN104860535A CN 104860535 A CN104860535 A CN 104860535A CN 201510223802 A CN201510223802 A CN 201510223802A CN 104860535 A CN104860535 A CN 104860535A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a production process of large sizes and high refraction of glass beads and belongs to the technical field of glass bead manufacturing. The production process comprises the following steps of step a, preparation of raw materials, wherein raw material components comprise 28 to 60% of titanium dioxide, 30 to 55% of barium oxide or barium carbonate, 3 to 18% of silicon dioxide or quartz sand, 1 to 10% of calcium oxide or limestone, 0 to 10% of zinc oxide and 0 to 5% of alkali metal oxide, the sum of the mass percentages of the components is 100%, the ball grinding is performed on the raw materials through a ball grinding mill after the raw materials are prepared according to the percentages, the filtration is performed, and the 10 to 50 um granularity of raw materials are obtained and step b, preparation of the glass beads, wherein the preparation comprises step 1, the melting of the raw materials and step 2, the forming and cooling of the glass beads. According to the production process of the large sizes and high refraction of glass beads, the mass production on the 150 to 1060 microns and 1.90 to 1.95 refractive indexes of glass beads can be achieved, the produced glass beads are good in quality and low in rejection rate, and accordingly the production efficiency of enterprises is greatly improved and the production cost is reduced.
Description
Technical field
The present invention relates to the production technique of a kind of large gauge, high-refraction glass bead, belong to glass microballon manufacturing technology field.
Background technology
The glass microballon of specific refractory power between 1.90 ~ 1.95, do not contain lead, Ge in its glass ingredient with the environmentally harmful composition such as Arsenic, its main component is barium oxide titanium dioxide and silicon-dioxide, and wherein barium oxide and titanium oxide resultant are more than 75%.The high refractive index glass micro pearl used at present is mainly used on reflective fabric and tapetum lucidum, and its primary particle size scope, at 25 ~ 90 microns, is maximumly no more than 105 microns.Because the composition forming glass backbone in glass of high refractive index composition is very low, as silicon-dioxide and boron trioxide etc., therefore glass of high refractive index tendency towards devitrification is large especially, so cause the particle diameter of glass microballon larger, production difficulty is higher.In addition the density of glass of high refractive index is more than 4 grams/cc, is far longer than the density of simple glass 2.5.Thus existing technique cannot produce the high refractive index glass micro pearl of large gauge, especially the high-refractivity microbead of more than 150 μm.And high refractive index glass micro pearl is requisite adding material in regression equation light reflecting material, regression equation light reflecting material utilizes the distinctive optical property of high refractive index glass micro pearl, be about to penetrate by light source the light come reflect to light source direction, and remain in a little pyramid.At present, the regression equation light reflecting material major part of domestic use is from Minnesota Mining and Manufacturing Company's import, high refractive index glass micro pearl only has several to adopt platinum crucible scorification to produce in China, its product technology parameter is very unstable, and facility investment large, consume energy high, finished product stability is low, is difficult to large-scale mass production.
Number of patent application is the patent of invention of 200910220613.5---the manufacture method of high refractive index glass micro pearl, high refractive index glass micro pearl raw material prepared by the method is prepared by following weight percent: TiO
225 ~ 50%, BaCO
310 ~ 30%, SiO
215 ~ 25%, B2O
35 ~ 13%, CaCO
35 ~ 15%, ZnO 5 ~ 10%, and Na
2o 1 ~ 5%; Its technological process is as follows: to raw material feeding system in glass making, by the raw material by above-mentioned weight percent preparation, by raw material: the weight ratio of water=1:0.6, fully mixes in aqueous; By mixed slurry ball-milling 24 hours; Slip sieves, deironing; Then by slip spraying dry; With pulverizing jet, spray-drying powder torch firing is become glass microballon; Be that the glass bead sieving of 30 ~ 150 microns is out tested afterwards by obtained particle diameter, finally obtained finished product; Described high refractive index is ND>=1.93.Although this patent of invention, adopt spraying dry, also achieve high yield, higher stability that high refractive index glass micro pearl is produced, can large-scale mass production be realized; But for the high-refraction glass bead of large gauge, particularly diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, the method is adopted to produce, can not produce in batches out well, scrap rate is high, and the optical property of the glass microballon produced and physical strength are all very well, considerably increase the production cost of producer.
Summary of the invention
For above the deficiencies in the prior art, the invention provides the production technique of a kind of large gauge, high-refraction glass bead, comprise the steps:
The preparation of a, raw material: the per-cent of material component is:
The mass percent sum of above-mentioned component is 100%;
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 10 ~ 50um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 5 ~ 100m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1000 ~ 1500 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 1 ~ 5m;
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 1 ~ 30s, shaping glass microballon is cooled to less than 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature;
The diameter of described large gauge, high-refraction glass bead is 150 ~ 1060 μm, specific refractory power is 1.90 ~ 1.95.
Preferably, in described step a, the per-cent of material component is:
The mass percent sum of above-mentioned component is 100%.
Preferably, in described step a, the per-cent of material component is:
Preferably, in described step a, described alkalimetal oxide is potassium oxide, calcium oxide or sodium oxide.
Preferably, in order to the glass microballon fallen short of specifications being removed from the glass microballon produced, step 2 in described step b) after, also comprise the removal of defect ware: after glass microballon cooling, the screen plate that first bore dia is after filtration less than 150 μm, the bore dia screen plate that is greater than 1060 μm after filtration again, closes off-gauge the formed glass microballon required and gets rid of.
Preferably, in order to remove waste gas and useless dirt, going back protection of the environment simultaneously, on described combustion chamber, being circumscribed with fly-ash separator.
Beneficial effect of the present invention is: the production technique of large gauge provided by the present invention, high-refraction glass bead, driving to enter in Cheng Zhulu together with raw material and burning, enormously simplify the schedule of operation of workman by utilizing high pressure after the mixing of combustion gases and combustion-supporting gas; Meanwhile, because combustion gases and combustion-supporting gas are all enter into pearl stove at a high speed, length of flame when combustion gases are burnt is very long, ensure that fully being heated of raw material, and can all melt, yield rate significantly improves; Further, after glass-beam forming, lowered the temperature within the time of 1 ~ 30s, prevent from causing internal stress excessive, affected optical property and the physical strength of pearl, make the glass microballon quality produced very good; Finally, this simple in production process operation, can large batch of production diameter be 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, improve the production efficiency of enterprise, reduce production cost.
Embodiment
Below, be clearly and completely described to the technical scheme in the present invention, obviously, described embodiment is only preferred embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 10 ~ 15um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 5 ~ 20m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1000 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 1 ~ 1.5m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 25 ~ 30s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
Embodiment 2
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 15 ~ 20um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 20 ~ 35m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1100 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 1.5 ~ 2m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 20 ~ 25s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
Embodiment 3
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 20 ~ 25um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 35 ~ 50m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1200 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 2 ~ 2.5m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 15 ~ 20s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
Embodiment 4
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 25 ~ 30um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 50 ~ 65m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1250 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 3 ~ 3.5m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 10 ~ 15s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
Embodiment 5
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 30 ~ 35um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 65 ~ 80m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1300 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 3.5 ~ 4m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 8 ~ 15s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
Embodiment 6
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 35 ~ 40um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 80 ~ 90m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1400 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 4 ~ 4.5m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 5 ~ 15s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
Embodiment 7
The production technique that diameter is 150 ~ 1060 μm, specific refractory power is the glass microballon of 1.90 ~ 1.95, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 40 ~ 50um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 90 ~ 100m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1500 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 4.5 ~ 5m; On described combustion chamber, be circumscribed with fly-ash separator.
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 5 ~ 15s, shaping glass microballon is cooled to 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature.
3) removal of defect ware: after glass microballon cooling, first the bore dia screen plate that is less than 150 μm after filtration, then the bore dia screen plate that is greater than 1060 μm after filtration, close off-gauge the formed glass microballon required and get rid of.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a production technique for large gauge, high-refraction glass bead, is characterized in that, comprises the steps:
The preparation of a, raw material: the per-cent of material component is:
The mass percent sum of above-mentioned component is 100%;
After preparing raw material according to above-mentioned per-cent, with ball mill, ball milling is carried out to it, then filter, obtain the raw material that granularity is 10 ~ 50um;
The preparation of b, glass microballon:
1) thawing of raw material: first with the speed of 5 ~ 100m/s, respectively by combustion gases and combustion-supporting gas spirt spray gun; While combustion gases and combustion-supporting gas mix in spray gun, high pressure is utilized to drive the raw material spirt Cheng Zhulu together at the uniform velocity added in spray gun; Then in Cheng Zhulu, light combustion gases, allow raw material be heated at the temperature of 1000 ~ 1500 DEG C thawing; Length of flame when combustion gases burn in Cheng Zhulu is 1 ~ 5m;
2), the shaping and cooling of glass microballon: melt completely when raw material is heated in Cheng Zhulu, after forming shaping glass microballon, in 1 ~ 30s, shaping glass microballon is cooled to less than 400 DEG C; When glass microballon after shaping cools, heat-eliminating medium is utilized to lower the temperature;
The diameter of described large gauge, high-refraction glass bead is 150 ~ 1060 μm, specific refractory power is 1.90 ~ 1.95.
2. the production technique of large gauge according to claim 1, high-refraction glass bead, is characterized in that: in described step a, and the per-cent of material component is:
The mass percent sum of above-mentioned component is 100%.
3. the production technique of large gauge according to claim 1, high-refraction glass bead, is characterized in that: in described step a, and the per-cent of material component is:
4. the large gauge according to any one of claims 1 to 3, the production technique of high-refraction glass bead, is characterized in that: in described step a, and described alkalimetal oxide is potassium oxide, calcium oxide or sodium oxide.
5. the production technique of large gauge according to claim 4, high-refraction glass bead, it is characterized in that: step 2 in described step b) after, also comprise the removal of defect ware: after glass microballon cooling, the screen plate that first bore dia is after filtration less than 150 μm, the bore dia screen plate that is greater than 1060 μm after filtration again, closes off-gauge the formed glass microballon required and gets rid of.
6. the production technique of large gauge according to claim 6, high-refraction glass bead, is characterized in that: on described combustion chamber, be circumscribed with fly-ash separator.
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|---|---|---|---|
| CN201510223802.3A CN104860535A (en) | 2015-05-05 | 2015-05-05 | Production process of large sizes and high refraction of glass beads |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223802.3A CN104860535A (en) | 2015-05-05 | 2015-05-05 | Production process of large sizes and high refraction of glass beads |
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| CN201510223802.3A Pending CN104860535A (en) | 2015-05-05 | 2015-05-05 | Production process of large sizes and high refraction of glass beads |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2663886C2 (en) * | 2017-01-24 | 2018-08-13 | Андрей Анатольевич Тарасов | Method for producing hollow microspheres of metal oxides |
| CN110818271A (en) * | 2019-12-03 | 2020-02-21 | 陈保军 | Preparation method of high-refractive-index glass beads |
| CN111320381A (en) * | 2020-03-06 | 2020-06-23 | 成都光明光电股份有限公司 | Optical glass, glass preform and optical element |
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| CN1292358A (en) * | 1999-06-24 | 2001-04-25 | 中国科学院光电技术研究所 | Lead-free high-refractive-index micro-bead glass |
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| CN101638291A (en) * | 2008-07-30 | 2010-02-03 | 中国建材国际工程有限公司 | Method and device for balling hollow glass microballoons through oxygen-enriched combustion |
| CN102086087A (en) * | 2009-12-08 | 2011-06-08 | 沈阳临德陶瓷研发有限公司 | Method for preparing glass microspheres with high refractive index |
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| GB964238A (en) * | 1962-01-24 | 1964-07-22 | Cataphote Corp | High refractive index glass |
| GB1060234A (en) * | 1964-05-16 | 1967-03-01 | Cataphote Corp | Method and apparatus for manufacturing glass beads |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2663886C2 (en) * | 2017-01-24 | 2018-08-13 | Андрей Анатольевич Тарасов | Method for producing hollow microspheres of metal oxides |
| CN110818271A (en) * | 2019-12-03 | 2020-02-21 | 陈保军 | Preparation method of high-refractive-index glass beads |
| CN110818271B (en) * | 2019-12-03 | 2023-05-19 | 绵阳光耀新材料有限责任公司 | Preparation method of high-refractive-index glass beads |
| CN111320381A (en) * | 2020-03-06 | 2020-06-23 | 成都光明光电股份有限公司 | Optical glass, glass preform and optical element |
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Application publication date: 20150826 |