Material changing method for switching from high transmission glass production to low transmission glass production

A technology with high transmittance and low transmittance, which is applied in the feeding of melting furnaces, glass furnace equipment, glass manufacturing equipment, etc., and can solve problems such as long refueling time, unclear refueling mechanism, and difficult control of time nodes

Inactive Publication Date: 2006-01-04
HENAN ANCAI HI-TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can solve the following technical problems caused by refueling in the prior art: unclear refueling mechanism, too long refueling time, difficult control of time nodes, large fluctuations in the state of the pool furnace, and easy generation of a large amount of waste products

Method used

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  • Material changing method for switching from high transmission glass production to low transmission glass production
  • Material changing method for switching from high transmission glass production to low transmission glass production
  • Material changing method for switching from high transmission glass production to low transmission glass production

Examples

Experimental program
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Embodiment Construction

[0068] A 200-square-meter pool furnace switches from the production of high-transparency kinescope glass with a transmittance of 57% to the production of low-transmittance kinescope glass with a transmittance of 46%. The specific steps are as follows: Step 1: Determine the original high-transparency The composition of the picture tube glass colorant and the target low-transparency picture tube glass colorant is shown in Table 2 below.

[0069] Colorant ingredients

Fe 2 o 3

co 3 o 4

NiO

High-transparency picture tube glass (57%)

0.055％

0.00164％

0.0122％

Low-transparency picture tube glass (46%)

0.055％

0.00225％

0.0193％

[0070] Step 2: Calculate the supplementary positive batch material formula.

[0071] The specific parameters of the pool furnace are as follows:

[0072] Pool furnace capacity V: 672 tons;

[0073] Daily output P (ton / day): 200 tons / day;

[0074] Hourly output H: H=P / 24=8.33 ...

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Abstract

The present invention completes computer simulation of glass flow state inside tank furnace, establishes material changing formula and determines the change rule of high transmissibility glass residue concentration with time. Finally, one material changing method from producing high transmissibility display tube glass to producing low transmissibility display tube glass is determined, and the method includes determining recipe, recipe switching and tank furnace temperature regulation. By means of the said method, one display tube glass producing tank furnace in yield of 200 ton/day may has its material changed in 48 hr with controllable nodes and stable technological parameters and glass quality.

Description

technical field [0001] The invention relates to the field of picture tube glass production, more specifically, relates to a non-stop fast refueling method for switching from producing high transmittance picture tube glass to producing low transmittance picture tube glass. Background technique [0002] The transmittance of glass is related to the wavelength of light, the thickness of the transparent layer and the composition of the glass. The Lambert-Beer law can determine the relationship between the light transmission of a certain wavelength and the chemical composition and thickness d of the glass: [0003] lgI 0 / I=1gl / D=2.3×c×ε×d [0004] In the formula, c is the concentration of the glass colorant, ε is the extinction coefficient, and d is the distance of light passing through the glass, that is, the thickness of the glass. D is the transmittance, I is the light intensity of the exit glass, I 0 It is the light intensity entering the glass, where the transmittance D=...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B3/00C03B5/173
CPCC03B5/24
Inventor 李留恩贾伟苍利民崔祥林姜淑凤
Owner HENAN ANCAI HI-TECH
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