Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of float glass with low SO3 content

A technology of float glass and manufacturing method, applied in the field of float glass production, to achieve the effect of increasing strength, reducing brittleness and improving quality

Active Publication Date: 2010-09-15
株洲旗滨集团股份有限公司 +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] SO 3 The amount of dissolution in glass is affected by many factors, which mainly include the amount of Glauber's salt, glass components, redox properties of glass raw materials, melting temperature, redox atmosphere during melting, melting time and other factors. At present, there is no An efficient process technique enables complete elimination of residual SO in glass 3

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of float glass with low SO3 content
  • Manufacturing method of float glass with low SO3 content
  • Manufacturing method of float glass with low SO3 content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The amount of clarifier Glauber's salt used in float glass is usually measured according to the amount of Glauber's salt added per ton of silica sand in the batch. For different amounts of Glauber's salt added, it affects the residual SO in the glass. 3 The impact of figure 1 Shown.

[0024] Experiments show that the residual SO in the glass 3 It is approximately proportional to the amount of Glauber's salt added in the batch. Therefore, in order to reduce the SO in the glass 3 For the residual amount, the amount of Glauber's salt added in the batch should be minimized, but too little Glauber's salt may affect the clarification quality of the glass solution. Therefore, under the premise of ensuring the clarification quality of the glass solution, the amount of Glauber's salt added in the batch is usually 6~14Kg / ton silica sand. More preferably, the amount of Glauber's salt is 8-13Kg / ton of silica sand; the best amount of Glauber's salt is 12Kg / ton of silica sand.

[0025] So...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a manufacturing method of float glass with low SO3 content, which comprises the following steps for preparing components: (1) adjusting the content of sodium sulfate to be 6-14kg per ton silica; (2) preparing the contents of Na2O, K2O, CaO, MgO and Al2O3 in the content range of 0-0.2% of SO3 according to the following formula: SO3% = -0.71751+0.051433*Na2O+0.0208*K2O+0.02504*CaO+0.0074*MgO-0.00394*Al2O3; and (3) introducing 0.4-0.9kg of coal powder in each ton of silica sand in the mixture. By adopting the technical scheme, under the condition of ensuring the clear quality of molten glass, the invention greatly reduces the content of SO3 in the glass to enable the current content which is higher than 0.3% to be lower than 0.2%, thereby reducing the brittleness of the glass, improving the strength of the glass, and further improving the quality of the glass.

Description

Technical field [0001] The invention belongs to the field of float glass production and relates to a low SO 3 Manufacturing method of content float glass. Background technique [0002] Since the glass raw material or fuel contains a certain amount of sulfur, part of the sulfur will remain in the glass during the melting process of the glass, which will adversely affect the physical properties of the glass (such as brittleness and strength). [0003] The source of sulfur in glass is mainly glass raw materials and the fuel used in the glass melting process. The most sulfur-containing raw material is Glauber's salt (Na 2 SO 4 ). Generally, Glauber's salt is used as a fining agent for float glass to eliminate bubbles generated in the melting process. [0004] Glauber's salt will undergo a decomposition reaction during the glass melting process, and its faster decomposition temperature is about 1450 ℃, and part of SO is released during this process 2 Gas, and some sulfur will be dissolve...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C03C3/04C03B18/00
Inventor 俞其兵邵景楚官立民施敖荣郭建峰
Owner 株洲旗滨集团股份有限公司