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Solar super-white rolling glass and preparation method thereof

A technology of solar energy and calendering, applied in glass manufacturing equipment, glass furnace equipment, glass production, etc., can solve the problems of high raw material purity, high cost, low raw material purity and low cost, etc., achieve good weathering resistance and improve quality , Improve the effect of melting quality

Inactive Publication Date: 2011-10-19
XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a solar ultra-clear rolled glass with high light transmittance, good corrosion resistance, good weathering resistance, long life, low requirement on raw material purity, low cost and easy mass production and its preparation method to solve the problems of high purity requirements and high cost of raw materials in the prior art

Method used

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preparation example Construction

[0028] In addition, the present invention also provides a method for preparing the above-mentioned solar ultra-clear rolled glass, which includes the following steps:

[0029] Step 1: The selected raw materials are quartz sand, aluminum hydroxide or aluminum oxide, limestone, soda ash, Glauber's salt, dolomite, antimony trioxide and broken glass, and mix them after batching;

[0030] Step 2: melting and clarification;

[0031] Step 3: calendering;

[0032] Step 4: Obtain the solar ultra-clear rolled glass after annealing.

[0033] In the preparation method of the present invention, the mass percentage of iron content in each of the raw materials is less than 0.02%. The mixing in the first step is a container made of aluminum or stainless steel or non-metallic material, and the mass percentage of the iron content in the raw materials is controlled to be less than 0.01%. The batching in the step 1 is that the raw materials enter the weighing hopper through the electromagnetic v...

Embodiment 1

[0036] According to the following formula: In terms of mass percentage, SiO 2 75.2%, Al 2 o 3 1.4%, Na 2 O is 13.2%, K 2 O is 1.2%, CaO is 8.5%, MgO is 0.2%, Sb 2 o 3 0.29%, 0.005% Nd 2 o 3 , 0.005% Er 2 o 3 Calculate the required amount of batching materials according to the proportion of raw materials. These raw materials enter the weighing hopper through the electromagnetic vibrating feeder, and the electronic scale is automatically controlled by the electronic computer to measure the ingredients. After weighing, the batching materials are sent to the mixer for mixing, and water and steam are automatically added at the same time. The mass percentage of water content is 7.0%; the batch materials are conveyed to the kiln head silo through the conveyor, and the batch materials are added into the melting kiln through a large inclined blanket feeder. The raw materials are melted, clarified and cooled in the melting furnace to obtain a uniform and bubble-free glass liqui...

Embodiment 2

[0038] According to the following formula: In terms of mass percentage, SiO 2 73.0%, Al 2 o 3 2.4%, Na 2 O is 13.2%, K 2 O 0.04%, CaO 8.8%, MgO 2.4%, Sb 2 o 3 0.15%, 0.01% Nd 2 o 3 , 0.02% Er 2 o 3 The proportion of raw materials is calculated according to the required amount of raw materials. These raw materials enter the weighing hopper through the electromagnetic vibrating feeder, and the electronic scale is automatically controlled by the electronic computer to measure the ingredients. The mass percentage of water content is 4.0%; the batch material is transported to the kiln head silo through the conveyor, and the batch material is added into the melting kiln through a large inclined blanket feeder. The raw materials are melted, clarified and cooled in the melting furnace to obtain a uniform and bubble-free glass liquid that can be formed. The melting temperature is 1500°C-1600°C and the clarification temperature is 1520°C-1560°C. The molten glass flows out from...

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PUM

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Abstract

The invention relates to a piece of solar super-white rolling glass which is calculated according to the mass percent of oxide, and comprises the components according to proportions as follows: 72.0%-75.2% of SiO2, 1.0%-2.4% of Al2O3, 13.2%-15.0% of R2O, 8.5%-10.5% of CaO, 0-3.6% of MgO, 0.15%-0.38% of Sb2O3 and Fe2O3 being smaller than or equal to 0.01%. In addition, the invention also relates to a preparation method of the solar super-white rolling glass, and the preparation method comprises the following steps: step one, selecting quartz sand, aluminum hydroxide or aluminum oxide, limestone, calcined soda, sodium sulfate, dolomite, antimony trioxide and cullet as raw materials, and preparing and mixing the raw materials; step two, melting and clarifying; step three, calendaring; and step four, annealing and obtaining the solar super-white rolling glass. The solar super-white rolling glass produced by the preparation method has the advantages of high light transmission, good corrosion resistance and weather resistance, long service life and the like, and can be used for a solar power generating assembly for photoelectric conversion.

Description

technical field [0001] The invention relates to glass manufacturing technology, in particular to a solar ultra-clear rolled glass and a preparation method thereof. Background technique [0002] Solar energy is an inexhaustible new energy source. Under the guidance of the national new energy policy and the trend of global new energy development, the industry of developing green energy and recycling energy has gradually become a sunrise industry. At present, monocrystalline silicon solar cells and polycrystalline silicon solar cells are developing most rapidly, and they all require a cover glass. Because the wavelength of the photoelectric conversion effect of crystalline silicon cells is 300-1200nm, the cover glass generally adopts ultra-clear embossed glass, and the transmittance in this wavelength range is required to be as high as possible. The rate is around 91%. [0003] For example, there is a Chinese patent, the publication number of which is CN101161600A, the publi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/087C03C3/095C03B13/00C03C6/04C03C25/00C03B5/16C03B5/225
CPCY02P40/50
Inventor 董清世辛崇飞刘笑荣
Owner XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD
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