Glass manufacturing equipment used for reducing impurity in glass and its method

A glass manufacturing and equipment technology, applied in the field of glass manufacturing equipment, can solve problems such as damage to the service life of clarification tanks, reduce the quality of glass products, and easy corrosion of precious metals, so as to improve service life, reduce oxidation and corrosion, and reduce the possibility Effect

Inactive Publication Date: 2007-01-31
HENAN ANCAI HI-TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the inner and upper walls of the clarification tank are not in contact with the glass melt, they are in contact with the flowing high-temperature air, and the air has strong oxidizing properties at high temperatures, so the precious metals here are most likely to be corroded
Based on the above mechanism, the service life of the clarifier will be impaired, and a large number of precious metal stones will be produced in the glass melt, and the formed precious metal stones will reduce the quality of glass products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0076] Experimental example 1: before and after adopting the method of the present invention, Pt and PtO Variation of the vapor pressure

[0077] In this example, a clarification tank 10 made of Pt and having a structure as shown in FIG. 2 and a high-temperature inert gas supply device 20 as shown in FIG. 4 were used. The first scheme adopted in this experimental example is that the high-temperature inert gas is not passed into the gas space 18, and after 24 hours, the PtO 2 and the volatilization and oxidation of Pt reach equilibrium, and then the PtO in the gas space 18 2 and Pt vapor pressure were measured. The solid lines 101 and 102 in Fig. 5 represent the PtO obtained with this conventional aspect, respectively 2and Pt vapor pressure curves.

[0078] The second solution adopted in this experimental example is that the inert gas supply device 21 first supplies argon to the inert gas heating device 22 connected thereto. After the argon is heated in the temperature rais...

experiment example 2

[0079] Experimental Example 2: Changes in the number of stones contained in glass products before and after adopting the present invention

[0080] In this example, a clarification tank 10 made of platinum and having a structure as shown in FIG. 2 and a high-temperature inert gas supply device 20 as shown in FIG. 4 were used. The first solution adopted in this experimental example is to not pass high-temperature argon gas into the gas space 18, and after 48 hours, collect defect data for each kilogram of glass products through stone equipment with a resolution limited to a size greater than 10 microns.

[0081] The second scheme adopted in this experimental example is to pass high-temperature argon gas with a temperature of 1000°C and a fluidity of 0.1 m / min into the gas space. The same as in Example 1, the high-temperature mixed gas discharged from the clarification tank 10 passes through the gas cooling device 24 to lower the temperature to condense the volatile substances t...

experiment example 3

[0083] Experimental Example 3: Influence of the flow rate and temperature of the inert gas on the number of stones in the resulting glass product

[0084] In this experimental example, a clarification tank 10 with the structure shown in FIG. 2 was adopted, and the clarification tank 10 was made of platinum metal. The first scheme adopted in this experimental example is to feed the gas space 18 with a temperature of 1000°C and a flow rate of 0.01 m / min, 0.04 m / min, 0.08 m / min, 0.11 m / min, 0.15 m / min, 0.18 m / min, respectively. m / min, 0.20 m / min high-temperature argon gas, after 48 hours, the data of the two types of stone defects in each kilogram of glass products generated under the condition of passing argon gas at different flow rates were collected.

[0085] The second scheme adopted in this experimental example is to feed the gas space 18 with a temperature of 1200°C and a flow rate of 0.01 m / min, 0.04 m / min, 0.08 m / min, 0.11 m / min, 0.15 m / min, 0.18 m / min m / min, 0.20 m / min...

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PUM

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Abstract

The present invention relates to glass-making equipment capable of reducing impurity content in the glass in the glass-making process. Said equipment includes the following several portions: melting bath, clarifier, cooling device, glass melt supply device and glass product forming device. Said invention also provides the concrete structure of every above-mentioned portion and connection mode of all the above-mentioned portions.

Description

technical field [0001] The present invention relates to a glass manufacturing equipment and method, in particular to a glass manufacturing equipment and method capable of reducing impurities contained in glass during the glass manufacturing process. technical background [0002] In the manufacture of glass substrates such as liquid crystal displays and thin film transistors (TFT), the resulting glass substrates must meet the requirements of high temperature resistance, chemical corrosion resistance, low density and low defects. The existing production of glass substrates basically includes: a glass melting tank, a clarification device, a stirring device, a cooling device, a glass melt supply device for supplying glass melt to forming equipment, and forming equipment. Typically, these devices or devices are made in whole or in part of noble metals, such as platinum or platinum alloys. When manufacturing glass substrates such as displays and TFTs, the prepared glass raw mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/225
CPCY02P40/57
Inventor 贾伟李震田红星徐建军
Owner HENAN ANCAI HI-TECH
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