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Method for improving clarifying effect of molten glass in floating production and kiln device

A float glass and molten glass technology, applied in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve problems such as poor clarification effect, trouble, and few glass substrates

Inactive Publication Date: 2010-06-02
TUNGHSU GRP
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Problems solved by technology

In view of the more stringent requirements of PDP electronic glass than traditional glass, a set of high-efficiency clarification mode is required. The clarification effect in the prior art is not good, so there are fewer qualified glass substrates, which brings trouble to the field

Method used

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  • Method for improving clarifying effect of molten glass in floating production and kiln device
  • Method for improving clarifying effect of molten glass in floating production and kiln device

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Embodiment Construction

[0011] A method for improving the clarification effect of molten glass in float production. The above method is realized in a molten glass clarification furnace. For glass liquid output, a forced clarification area C is added between the clarification area B and the cooling adjustment area D of the clarification kiln to increase the length and residence time of the glass liquid clarification process. The molten glass is subjected to forced clarification.

[0012] A layer of platinum plating is provided on the bottom, side walls and refractory materials in contact with the molten glass in the forced clarification zone C in the clarification kiln.

[0013] Control the depth of molten glass in the forced clarification zone C at 250-350mm.

[0014] The electrodes of the above-mentioned electric heating device 3 are platinum electrodes, and the electric heating devices are divided into 5 groups, and the maximum power of each group is 200kw.

[0015] The above-mentioned decompress...

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Abstract

The invention relates to a method for improving a clarifying effect of molten glass in floating production and a kiln device, which solve the technical problems of improving the clarifying effect of molten glass in floating production and further reducing the generation rate of bubbles so as to produce a high-quality glass base plate. The method is realized in a molten glass clarifying kiln; after a glass material is melted in the clarifying kiln and processed by a clarifying area and a cooling adjustment area, the molten glass is output; a clarification forcing area is additionally arranged between the clarifying area and the cooling adjustment area of the clarifying kiln, and the length and the detention time of a clarifying process of the molten glass are increased to match for carrying out clarification forcing processing on the molten glass; the kiln device is provided with two U-shaped walls, and the two U-shaped walls form a sealed clarification forcing area by a top wall, a bottom wall and a side wall of a kiln body. The invention obviously improves the clarifying effect and the qualified rate of products and can efficiently carry out defoaming clarification on the molten glass and obviously reduce the influence of the clarifying bubbles on the quality of the glass base plate.

Description

technical field [0001] The invention belongs to the field of plasma glass substrate manufacturing, and relates to the clarification process of molten glass on a float production line, in particular to a method for improving the clarification effect of molten glass in float production and reducing bubble defects and a matching clarification kiln device. Background technique [0002] With the advancement of science and technology, the requirements for glass substrates in the production process are gradually increasing. In various glass production, air bubbles are a very important factor affecting glass quality. The clarification effect of glass liquid directly determines the number of air bubbles remaining in glass. Therefore, when producing glass with high quality requirements, especially TFT (thin film) Transistor display), PDP (plasma display) and other high-quality requirements, the problems of difficult melting and clarification also appear. A set of high-efficiency clari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B18/02C03B5/225C03B18/16
CPCC03B5/225
Inventor 陈发伟李兆廷王建强任书明
Owner TUNGHSU GRP
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