CN1508084A - Method for melting galss of projection tube panel by full-oxygen combustion - Google Patents
Method for melting galss of projection tube panel by full-oxygen combustion Download PDFInfo
- Publication number
- CN1508084A CN1508084A CNA021568324A CN02156832A CN1508084A CN 1508084 A CN1508084 A CN 1508084A CN A021568324 A CNA021568324 A CN A021568324A CN 02156832 A CN02156832 A CN 02156832A CN 1508084 A CN1508084 A CN 1508084A
- Authority
- CN
- China
- Prior art keywords
- full
- glass
- oxygen combustion
- oxygen
- tube panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
- C03B5/2353—Heating the glass by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The present invention relates to a method for melt-making projection kinescope tube screen glass by adopting full-oxygen combustion technique. The full-oxygen combustion technique can be used for medium-sized and small-sized glass tank furnace. The area of tank furnace is 25-40 sq.m, and its full-oxygen combustion fuel is kerosene, diesel oil, heavy oil, antural gas, liquefied petroleum gas and LPG. Said invention adopts 99% oxygen gas and fuel to make combustion, and its produced waste gas only has CO2 and H2O, so that it is favorable for environmental protection, and its melting rate can be raised by above 30%, its glass composition is stable, and the service life to tank furnace also can be raised.
Description
Technical field
The invention belongs to and found projection tube panel's glass process, particularly a kind of full-oxygen combustion is used to found the method for projection tube panel's glass.
Background technology
The glass melting furnace that comparison 1. glass smeltings of the glass melting furnace type of furnace adopt mainly contains following several, the cross-fired furnace of band regenerator, two arch longitudinal flame tank furnaces, the horseshoe-fired furnace of band regenerator, unit kiln.2. above-mentioned tank furnace heating is adopted diesel oil, heavy oil, Sweet natural gas, liquefied petroleum gas (LPG) with fuel, LPG etc., it is better that the cross flame type of furnace of combustion-supporting employing air 3. band regenerator is used for more than 40 square metres tank furnace, the longitudinal temperature of tank furnace is easy to control, combustion air can be preheating to about 900 ℃, and thermo-efficiency is higher, founds 1kg glass heat dissipation and is about about 3000kal, owing to have regenerator, it is higher to build the stove one-time investment.4. it is lower that two arch longitudinal flame tank furnaces are built the stove cost, and longitudinal temperature control is poor than cross-fired furnace, but more stable, combustion air can be preheating to about 800 ℃, and thermo-efficiency is general, and 15 square metres of tank furnaces are founded 1kg glass heat dissipation 5000kal.5. be with the horseshoe-fired furnace of regenerator, longitudinal temperature is wayward in the tank furnace melting pool, and thermo-efficiency is higher.6. unit kiln generally is used for the less glass melting furnace of melting area, the disposable stove of building of the tank furnace of this form is invested less, longitudinal temperature in the tank furnace melting pool is highly susceptible to control, adopt the metallic recuperator warm-up combustion-supporting air now, but the thermal efficiency ratio of fusion cast glass is lower, and melting rate is generally 0.25～0.45.
The combustion-supporting employing air of fusion cast glass has the following disadvantages: 1. be unfavorable for environmental protection, adopt air to help so, contain the 79%N that has an appointment in the air
2, go out NO is arranged in the waste gas through high temperature after-bay fire grate
XExist.2. the alkalimetal oxide in the glass volatilizees in the process of founding, the chemical constitution that is unfavorable for institute's fusion cast glass is stable, the refractory materials of evaporable alkali vapor etch tank furnace, reduce the work-ing life of glass melting furnace, a large amount of alkali gold alkali oxide compounds deposit in regenerator, flue, are unfavorable for the continous-stable work of tank furnace.3. thermo-efficiency is low, and the enough heats of warm-up combustion-supporting air needs are discharged flue gas simultaneously and taken away a large amount of heat energy.4. melting rate is low, and melting rate is lower than 0.45 generally speaking.
Projection tube panel's glass is a kind of high permeability glass, and is very strict to the chemical constitution requirement of glass, adopts the full-oxygen combustion new technology to found projection tube panel's glass and meet the demands fully.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of full-oxygen combustion to be used to found the method for projection tube panel's glass.
Technical scheme of the present invention is:
A kind of full-oxygen combustion is used to found the method for projection tube panel's glass, it is characterized in that: adopt pure oxygen combustion technology to be used for middle-size and small-size glass melting furnace, the tank furnace area is 2.5 square metres～40 square metres.
Full-oxygen combustion is used to found the method for projection tube panel's glass: full-oxygen combustion is that the employing ignition dope is that oxygen level is the gas ignition dope more than 60%.Full-oxygen combustion is used for founding the method for projection tube panel's glass: full-oxygen combustion fuel is one or more cooperations of kerosene, diesel oil, heavy oil, Sweet natural gas, liquefied petroleum gas (LPG), Trimethylmethane.
Effect of the present invention is: adopt the full-oxygen combustion new technology to found the obtained effect of projection tube panel's glass.
1. the total oxygen technology has avoided the glass that causes because of burning to pollute, and causes influencing the performance index of glass.
2. adopt 99% oxygen and fuel combustion, the waste gas that is produced has only CO
2And H
2O is beneficial to environmental protection.
3. the equal type of furnace adopts the full-oxygen combustion new technology can improve melting rate more than 30%.
4. equal type of furnace employing full-oxygen combustion new technology can be energy-conservation more than 40%.
5. help oxygen with pure oxygen, the exhaust gas volumn that is produced is about 1/4 of the exhaust gas volumn that produces of air-breathing, and institute causes
Alkali-metal volatilization lack than air-breathing, be beneficial to stable that glass forms, the work-ing life of improving tank furnace,
Be beneficial to the work of tank furnace continous-stable.
6. adopt the full-oxygen combustion new technology, combustion-supporting oxygen is generally without preheating, and the type of furnace adopts element cell more, and the longitudinal temperature in the tank furnace melting pool is easy to control, can satisfy temperature schedule in the melting pool of setting fully according to processing requirement, reduces and founds defective.Adopting unit kiln to build the stove cost can reduce significantly, than the band regenerator
Tank furnace reduce about 45%.
Embodiment
A kind of full-oxygen combustion is used to found the method for projection tube panel's glass, adopts pure oxygen combustion technology to be used for middle-size and small-size glass melting furnace, and the tank furnace area is 2.5 square metres～40 square metres.Full-oxygen combustion is that the employing ignition dope is that oxygen level is the gas ignition dope more than 60%.Full-oxygen combustion fuel is one or more cooperations in kerosene, diesel oil, heavy oil, Sweet natural gas, liquefied petroleum gas (LPG), the Trimethylmethane.
Claims (3)
1, a kind of full-oxygen combustion is used to found the method for projection tube panel's glass, it is characterized in that: adopt pure oxygen combustion technology to be used for middle-size and small-size glass melting furnace, the tank furnace area is 2.5 square metres～40 square metres.
2, full-oxygen combustion according to claim 1 is used to found the method for projection tube panel's glass: full-oxygen combustion is that the employing ignition dope is that oxygen level is the gas ignition dope more than 60%.
3. full-oxygen combustion according to claim 1 and 2 is used for founding the method for projection tube panel's glass: full-oxygen combustion fuel is one or more cooperations of kerosene, diesel oil, heavy oil, Sweet natural gas, liquefied petroleum gas (LPG), Trimethylmethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021568324A CN1508084A (en) | 2002-12-19 | 2002-12-19 | Method for melting galss of projection tube panel by full-oxygen combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021568324A CN1508084A (en) | 2002-12-19 | 2002-12-19 | Method for melting galss of projection tube panel by full-oxygen combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1508084A true CN1508084A (en) | 2004-06-30 |
Family
ID=34236426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021568324A Pending CN1508084A (en) | 2002-12-19 | 2002-12-19 | Method for melting galss of projection tube panel by full-oxygen combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1508084A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804969A (en) * | 2017-09-22 | 2018-03-16 | 安徽华光光电材料科技集团有限公司 | A kind of all-oxygen combustion ultra-clear glasses and its production method |
| CN109721223A (en) * | 2018-12-24 | 2019-05-07 | 郑州旭飞光电科技有限公司 | A kind of method and system producing liquid-crystalline glasses |
-
2002
- 2002-12-19 CN CNA021568324A patent/CN1508084A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804969A (en) * | 2017-09-22 | 2018-03-16 | 安徽华光光电材料科技集团有限公司 | A kind of all-oxygen combustion ultra-clear glasses and its production method |
| CN109721223A (en) * | 2018-12-24 | 2019-05-07 | 郑州旭飞光电科技有限公司 | A kind of method and system producing liquid-crystalline glasses |
| CN109721223B (en) * | 2018-12-24 | 2021-11-26 | 郑州旭飞光电科技有限公司 | Method for producing liquid crystal glass |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |