CS245550B1 - Method of furnace atmosphere adjustment during simax parison melting - Google Patents
Method of furnace atmosphere adjustment during simax parison melting Download PDFInfo
- Publication number
- CS245550B1 CS245550B1 CS277485A CS277485A CS245550B1 CS 245550 B1 CS245550 B1 CS 245550B1 CS 277485 A CS277485 A CS 277485A CS 277485 A CS277485 A CS 277485A CS 245550 B1 CS245550 B1 CS 245550B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- melting
- simax
- volume
- furnace atmosphere
- parison
- Prior art date
Links
- 238000002844 melting Methods 0.000 title claims description 20
- 230000008018 melting Effects 0.000 title claims description 20
- XXXSILNSXNPGKG-ZHACJKMWSA-N Crotoxyphos Chemical compound COP(=O)(OC)O\C(C)=C\C(=O)OC(C)C1=CC=CC=C1 XXXSILNSXNPGKG-ZHACJKMWSA-N 0.000 title claims description 8
- 239000005364 simax Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000003345 natural gas Substances 0.000 claims description 6
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims description 5
- 239000005297 pyrex Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000010410 layer Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 210000003298 dental enamel Anatomy 0.000 description 4
- 239000006060 molten glass Substances 0.000 description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 102100032843 Beta-2-syntrophin Human genes 0.000 description 1
- 108050004003 Beta-2-syntrophin Proteins 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Glass Melting And Manufacturing (AREA)
Description
Očelom riešenia je zabránit vzniku povrchové]' kremičitej vrstvy pri tavení skloviny SIMAX alebo PYREX v taviacich .agregátoch vykuřovaných zemným plynom.The purpose of the solution is to prevent the formation of a surface silica layer during melting of SIMAX or PYREX glass in melting aggregates heated by natural gas.
Uvedeného účelu sa dosiahne tým, že v časti zakladania kmeňa a v čeriacej oblasti sa vytvoří oxidačná atmosféra s prebytkom kyslíka 0,5 až 4 % objemových a v časti zídenia sa vytvoří redukčná až mierne oxidačná atmosféra s obsahom kyslíka 0,0 až 1 % objemové. Výsledný obsah kyslíka v spalinách je 0,5 až 4 % objemových.This is achieved by providing an oxidizing atmosphere with an excess of oxygen of 0.5 to 4% by volume in the trunking part and in the purging area, and a reducing to moderately oxidizing atmosphere with an oxygen content of 0.0 to 1% by volume in the wall. The resulting oxygen content in the flue gas is 0.5 to 4% by volume.
Vynález rieši obmedzenie vzniku povrchové] kremičitej vrstvy pri tavení skloviny SIMAX alebo PYREX v taviacich agregátoch s kovovým rekuperátorom.The invention solves the limitation of the formation of a surface silica layer during melting of SIMAX or PYREX glass in melting aggregates with a metal recuperator.
Sklovina SIMAX alebo PYREX sa taví v plynových alebo elektrických taviacich agregátoch. Pri elektrickom tavení křemičitá vrstva v podstatě nevzniká. Pri tavení skloviny v plynových taviacich agregátoch však dochádza k prchaniu oxidov z jej povrchu, a tým k vytvoreniu viskóznej povrchové] vrstvy znehodnocujúcej utavenú sklovinu. Plynné palivo, ako je známe, obsahuje vždy určité malé množstvo zlúčeniny síry, ktoré pri jeho spalovaní sa oxiduje buď na oxid siřičitý, alebo oxid sírový, z ktorých oxid sírový silné znižuje efekt prchania povrchovo aktívnych zložiek kmeňa, ako sú oxid boritý, oxid sodný a oxid draselný, ktoré pri vysokých taviacich teplotách 1 560 až 1 600 °C a stálosti hladiny vytvárajú povrchová kremičitú vrstvu. V důsledku prúdenia skloviny dochádza k uvolňovaniu kremičitej vrstvy, ktorej kúsky sa miešajú s okolitou sklovinou a sposobujú znehodnotenie skloviny, a tým i výrobkov z nej vyrábaných. Křemičitá vrstva sa odstraňuje z hladiny skloviny různými sposobmi, ako například mechanickým vyhrabáváním, kontinuálnym odpúšťaním cez přepad ako uvádza Tavení skla, SNTL Praha, 1970, připadne mechanickým překrytím hladiny skloviny, nasycením pecnej atmosféry prchavými zložkami a pod., čo však úplné nerieši jej odstránenie, a teda i jej negativny vplyv na kvalitu skloviny.SIMAX or PYREX glass melts in gas or electric melting units. In the case of electrical melting, the silica layer is essentially not formed. However, melting the molten glass in the gas melting aggregates causes the oxides to escape from its surface, thereby forming a viscous surface layer which degrades the molten glass. The gaseous fuel, as is known, always contains a small amount of sulfur compound, which upon combustion is oxidized to either sulfur dioxide or sulfur trioxide, of which sulfur trioxide strongly reduces the volatility effect of the surfactant components of the strain, such as boron oxide, sodium oxide and potassium oxide, which form a siliceous surface at high melting temperatures of 1560 to 1600 ° C and level stability. As a result of the flow of the glass, the siliceous layer is released, the pieces of which mix with the surrounding glass and cause deterioration of the glass and thus of the products made therefrom. The siliceous layer is removed from the enamel level in various ways, such as by mechanical digging, continuous overflow through the overflow as reported by Melting Glass, SNTL Prague, 1970, possibly by mechanical overlaying the enamel level, saturating the furnace atmosphere with volatile components and the like. and hence its negative impact on the quality of the enamel.
Uvedené nevýhody sa podstatné znížia nastavením pecnej atmosféry pri tavení skloviny SIMAX alebo PYREX v taviacich agregátoch s kovovým rekuperátorom, vykuřovaných zemným plynom, ktorý obsahuje najmenej 0,3 mg síry v 1 m3 zemného plynu, podlá vynálezu, ktorého podstata spočívá v tom, že v časti zakladania kmeňa a v čeriacej oblasti sa vytvoří oxidačná atmosféra s prebytkom kyslíka 0,5 až 4 % objemových v spalinách odobraných z pecného priestoru a v časti zídenia, t. j. od čeriaceho pásma smerom k prietoku sa vytvoří redukčná až mierne oxidačná atmosféra s obsahom kyslíka 0,0 až 1 % objemové. Výsledný obsah kyslíka v spalinách odobratých nad vstupom do kovového rekuperátora potom je 0,5 až 4 % objemových.These disadvantages are substantially reduced by adjusting the furnace atmosphere during melting of SIMAX or PYREX glass in melting aggregates with a metal recuperator, heated by natural gas containing at least 0.3 mg of sulfur in 1 m 3 of natural gas, according to the invention, an oxidizing atmosphere with an excess of 0.5 to 4% by volume in the flue gas taken from the furnace compartment is created in the trunking and purging area and a reducing to moderately oxidizing atmosphere containing oxygen content of 0 is created in the part of the wall, ie. 0 to 1% by volume. The resulting oxygen content of the flue gas collected above the inlet of the metal recuperator is then 0.5 to 4% by volume.
Nastavením pecnej atmosféry sposobom podlá vynálezu prebieha spafovanie plynného paliva v taviacom agregáte za vzniku oxidu siřičitého, čím nastáva zvýšenie povrchového napátia skloviny, a s tým spojený pohyb skloviny, čo má za následok podstatné obmedzenie až úplné zabránenie tvorby povrchovej kremičitej vrstvy, čo je hlavným účinkom vynálezu. Vyvolaným prúdením sa zlepšuje aj homogenita skloviny, a tým aj kvalita výrobkov. Ďalšou výhodou je, že pri tavení nie je potřebné mechanické zariadenie na odstraňovanie kremičitej vrstvy.By adjusting the furnace atmosphere according to the invention, the combustion of the gaseous fuel in the melting aggregate takes place to form sulfur dioxide, thereby increasing the surface tension of the molten glass and the associated movement of the molten glass, thereby substantially reducing or even preventing the formation of a surface silica layer. . The induced flow also improves the homogeneity of the enamel and hence the quality of the products. A further advantage is that a mechanical device for removing the silica layer is not required during melting.
Příkladné vykonanie sposobu nastavenia pecnej atmosféry pri tavení skloviny SIMAX podlá vynálezu je objasněné nasledujúcim príkladom.An exemplary embodiment of a furnace atmosphere setting method for melting glass SIMAX according to the invention is illustrated by the following example.
PříkladExample
Pri tavení skloviny SIMAX v taviacom agregáte s kovovým rekuperátorom vykuřovaným zemným plynom s obsahom 1 mg síry v l m3 zemného plynu sa v časti zakladania kmeňa a v čeriacej oblasti vytvoří oxidačná atmosféra s prebytkom kyslíka 1 % objemové v spalinách odobratých z pecného priestoru a v časti zídenia sa vytvoří redukčná atmosféra s obsahom kyslíka 0,0 % objemové. Výsledný obsah kyslíka v spalinách odot bratých nad vstupom do kovového rekuperátora je 1 % objemové.The melting of the glass Simax in the melting aggregate metal heat recovery heated by natural gas containing 1 mg of sulfur VLM 3 gas is in the part of the log loading and refiner in creating the oxidizing atmosphere with an excess of oxygen of 1% by volume of the flue gas taken out of the furnace chamber and the part-President of forming reducing atmosphere with an oxygen content of 0,0% vol. The resulting oxygen content of the flue gas from the inlet of the metal recuperator is 1% by volume.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS277485A CS245550B1 (en) | 1985-04-15 | 1985-04-15 | Method of furnace atmosphere adjustment during simax parison melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS277485A CS245550B1 (en) | 1985-04-15 | 1985-04-15 | Method of furnace atmosphere adjustment during simax parison melting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS245550B1 true CS245550B1 (en) | 1986-10-16 |
Family
ID=5365793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS277485A CS245550B1 (en) | 1985-04-15 | 1985-04-15 | Method of furnace atmosphere adjustment during simax parison melting |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS245550B1 (en) |
-
1985
- 1985-04-15 CS CS277485A patent/CS245550B1/en unknown
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