CN104529158A - Photovoltaic glass production process - Google Patents
Photovoltaic glass production process Download PDFInfo
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- CN104529158A CN104529158A CN201410792096.XA CN201410792096A CN104529158A CN 104529158 A CN104529158 A CN 104529158A CN 201410792096 A CN201410792096 A CN 201410792096A CN 104529158 A CN104529158 A CN 104529158A
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Abstract
The invention discloses a photovoltaic glass production process which comprises the following steps: 1, taking out various materials in proportion; 2, grinding the raw materials into powder with the particle size of less than 150 microns; 3, uniformly mixing the raw material powder; 4, slowly heating a crucible to the temperature of over 1200 DEG C, adding the raw materials, heating to the temperature of 1500 DEG C, performing heat preservation for 40 minutes, and transferring molten glass into a mold; 5, feeding the finished product into an annealing furnace at the annealing temperature of 650 DEG C; and 6, naturally air-cooling after annealing. By virtue of adopting the steps, the visible light transmittance is improved, and the photoelectric conversion efficiency of a photovoltaic cell is greatly improved; and moreover, the thermal stability of a glass plate is improved, the mechanical strength is improved, the photovoltaic glass is difficult to break, and the service life of the photovoltaic cell is prolonged.
Description
Technical field
The present invention relates to a kind of photovoltaic glass production technique.
Background technology
In recent years, country more and more payes attention to the exploitation of sun power, and domestic theCourse of PV Industry is swift and violent, and the demand of photovoltaic glass is also increasing, and market potential is very large.Our photovoltaic glass used is commonly ordinary flat ultra-clear glasses now.Ordinary flat ultra-clear glasses thickness is generally about 3mm, and visible transmission is than low, and sunlight transmitance is low; Ultraviolet (uv) transmission is higher, and easily broken frangible, has had a strong impact on photoelectric transformation efficiency and the work-ing life of photovoltaic cell.The photovoltaic glass that the fast development of photovoltaic industry needs various aspects of performance more superior.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of photovoltaic glass production technique, product optical transmittance is higher, not easily broken.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of photovoltaic glass production technique, comprises the following steps:
Step 1: take out various raw material in proportion;
Step 2: become by raw material grinding mill particle diameter to be less than the powder of 150 μm;
Step 3: raw material powder is mixed;
Step 4: crucible is risen at a slow speed more than 1200 DEG C, adds raw material, is warming up to 1500 DEG C, is incubated 40 minutes, glass metal is moved on to mould;
Step 5: finished product is sent into annealing furnace, annealing temperature 650 DEG C;
Step 6: natural air cooled after annealing.
As the improvement of technique scheme, in step 1, example gets lanthanum trioxide 0.2 part in mass ratio, yttrium oxide 0.2 part, 0.3 part, barium oxide, kaolin 3 parts, sodium oxide 5 parts, 6 parts, saltcake, 6 parts, calcite, aluminum oxide 11-13 part, quartz sand 50-60 part.
As the further improvement of technique scheme, step 2 Raw is first crushed to small-particle.
Further, spiral type oscillating screen is used to carry out screening and mixing in step 3.
Further, after adding raw material in step 4, crucible heat-up rate is less than 8 DEG C/min.
The invention has the beneficial effects as follows: present invention process simple possible, raw material sources are wide, are applicable to large-scale industrial production; Adopt new technical recipe, improve the visible transmission ratio of glass finished-product, reduce ultraviolet (uv) transmission ratio, the photoelectric transformation efficiency of photovoltaic cell can be increased substantially; Controlled the anneal of melt temperature and step 5 by step 4, improve the thermal stability of sheet glass, elevating gear intensity, photovoltaic glass is not easily broken, improves the work-ing life of photovoltaic cell, is convenient to store and transport.
Embodiment
A kind of photovoltaic glass production technique, comprises the following steps:
Step 1: take out various raw material in proportion;
Step 2: become by raw material grinding mill particle diameter to be less than the powder of 150 μm;
Step 3: raw material powder is mixed;
Step 4: crucible is risen at a slow speed more than 1200 DEG C, adds raw material, is warming up to 1500 DEG C, is incubated 40 minutes, glass metal is moved on to mould;
Step 5: finished product is sent into annealing furnace, annealing temperature 650 DEG C;
Step 6: natural air cooled after annealing.Adopt above-mentioned steps, by controlling the anneal of melt temperature and step 5 in step 4, improve the thermal stability of sheet glass, elevating gear intensity, photovoltaic glass is not easily broken, improves the work-ing life of photovoltaic cell.
In the present embodiment, preferably, in step 1, example gets lanthanum trioxide 0.2 part in mass ratio, yttrium oxide 0.2 part, 0.3 part, barium oxide, kaolin 3 parts, sodium oxide 5 parts, 6 parts, saltcake, 6 parts, calcite, aluminum oxide 11-13 part, quartz sand 50-60 part.Adopt above-mentioned technical recipe, the visible transmission ratio of glass finished-product can be improved, reduce ultraviolet (uv) transmission ratio, increase substantially the photoelectric transformation efficiency of photovoltaic cell.
In the present embodiment, preferably, step 2 Raw is first crushed to small-particle.Small-particle is first become by crushes raw materials to be convenient to follow-up abrasive dust (powder diameter is comparatively thin, uses refining mill).
In the present embodiment, preferably, spiral type oscillating screen is used to carry out screening and mixing in step 3.Adopt spiral type oscillating screen can filter out the underproof powder of particle diameter, the rotary course of powder in spiral type oscillating screen can be made again fully to mix, faster production flow process.
In the present embodiment, preferably, after adding raw material in step 4, crucible heat-up rate is less than 8 DEG C/min.Control the heat-up rate of crucible, ensure sufficient heat-up time, allow plurality of raw materials be mixed to get by molecular thermalmotion evenly.
The above, just better embodiment of the present invention, but the present invention is not limited to above-described embodiment, as long as it reaches technique effect of the present invention with any same or similar means, all should fall within protection scope of the present invention.
Claims (5)
1. a photovoltaic glass production technique, is characterized in that comprising the following steps:
Step 1: take out various raw material in proportion;
Step 2: become by raw material grinding mill particle diameter to be less than the powder of 150 μm;
Step 3: raw material powder is mixed;
Step 4: crucible is risen at a slow speed more than 1200 DEG C, adds raw material, is warming up to 1500 DEG C, is incubated 40 minutes, glass metal is moved on to mould;
Step 5: finished product is sent into annealing furnace, annealing temperature 650 DEG C;
Step 6: natural air cooled after annealing.
2. a kind of photovoltaic glass production technique according to claim 1, is characterized in that: in step 1, example gets lanthanum trioxide 0.2 part in mass ratio, yttrium oxide 0.2 part, 0.3 part, barium oxide, kaolin 3 parts, sodium oxide 5 parts, 6 parts, saltcake, 6 parts, calcite, aluminum oxide 11-13 part, quartz sand 50-60 part.
3. a kind of photovoltaic glass production technique according to claim 2, is characterized in that: step 2 Raw is first crushed to small-particle.
4. a kind of photovoltaic glass production technique according to claim 3, is characterized in that: use spiral type oscillating screen to carry out screening and mixing in step 3.
5. a kind of photovoltaic glass production technique according to claim 4, it is characterized in that: after adding raw material in step 4, crucible heat-up rate is less than 8 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792096.XA CN104529158A (en) | 2014-12-19 | 2014-12-19 | Photovoltaic glass production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792096.XA CN104529158A (en) | 2014-12-19 | 2014-12-19 | Photovoltaic glass production process |
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| Publication Number | Publication Date |
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| CN104529158A true CN104529158A (en) | 2015-04-22 |
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| CN201410792096.XA Pending CN104529158A (en) | 2014-12-19 | 2014-12-19 | Photovoltaic glass production process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226137A (en) * | 2015-10-16 | 2016-01-06 | 巴中市华盛玻璃有限责任公司 | A kind of photovoltaic glass assembly and manufacture method thereof |
| CN105502939A (en) * | 2015-12-14 | 2016-04-20 | 肖宇哲 | Preparation technology of big-size tube |
| CN107010833A (en) * | 2017-04-06 | 2017-08-04 | 蚌埠玻璃工业设计研究院 | A kind of preparation method of thin-film solar cells glass substrate |
| CN107473585A (en) * | 2017-09-30 | 2017-12-15 | 江苏闽江矿业有限公司 | A kind of silica sand colouring agent experimental method |
-
2014
- 2014-12-19 CN CN201410792096.XA patent/CN104529158A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226137A (en) * | 2015-10-16 | 2016-01-06 | 巴中市华盛玻璃有限责任公司 | A kind of photovoltaic glass assembly and manufacture method thereof |
| CN105502939A (en) * | 2015-12-14 | 2016-04-20 | 肖宇哲 | Preparation technology of big-size tube |
| CN107010833A (en) * | 2017-04-06 | 2017-08-04 | 蚌埠玻璃工业设计研究院 | A kind of preparation method of thin-film solar cells glass substrate |
| CN107473585A (en) * | 2017-09-30 | 2017-12-15 | 江苏闽江矿业有限公司 | A kind of silica sand colouring agent experimental method |
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Application publication date: 20150422 |