JPH1059727A - Glass melting furnace - Google Patents
Glass melting furnaceInfo
- Publication number
- JPH1059727A JPH1059727A JP8238370A JP23837096A JPH1059727A JP H1059727 A JPH1059727 A JP H1059727A JP 8238370 A JP8238370 A JP 8238370A JP 23837096 A JP23837096 A JP 23837096A JP H1059727 A JPH1059727 A JP H1059727A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- glass melting
- melting furnace
- glass
- opening
- 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.)
- Pending
Links
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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
Description
【０００１】[0001]
【発明上の利用分野】本発明は、酸素燃焼バーナーによ
るガラス溶融炉に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass melting furnace using an oxyfuel burner.
【０００２】[0002]
【従来の技術】近年、酸素と燃料との混合気体を用いる
バーナー、いわゆる酸素燃焼バーナーを備えるガラス溶
融炉が実用化されており、これは空気−燃料による、い
わゆる空気燃焼バーナーを用いたガラス溶融炉と比べ、
炉の熱効率を大幅に高めることができ、また公害の原因
となる窒素酸化物を発生しないという長所を有してい
る。2. Description of the Related Art In recent years, a glass melting furnace provided with a burner using a mixed gas of oxygen and fuel, that is, a so-called oxyfuel burner has been put into practical use. Compared to the furnace,
It has the advantages of significantly improving the thermal efficiency of the furnace and not generating nitrogen oxides that cause pollution.
【０００３】従来の酸素燃焼バーナーを備えたガラス溶
融炉３０は、図４に示すように炉の両側壁３１、３２に
複数対の酸素燃焼バーナー３３、３４、３５、３６が互
いに対向して配設され、それの火炎を炉の中央に向けて
噴出して炉３０内のガラスを溶融するようになってお
り、炉３０のガラス原料投入口３７側の前壁には燃焼に
よる排ガスを煙道を通じて炉外へ排出する開口部３８が
一ケ所設けられ、後壁には溶融されたガラスを炉外へ流
し出すスロート３９を備えている。そして投入口３７よ
りガラス溶融炉３０内に投入されたガラス原料は、酸素
燃焼バーナー３３、３４、３５、３６によって加熱溶融
され、溶融されたガラスはスロート３９を経て清澄室に
流れるようになっている。As shown in FIG. 4, a glass melting furnace 30 provided with a conventional oxy-fuel burner has a plurality of pairs of oxy-fuel burners 33, 34, 35, 36 arranged on both side walls 31, 32 of the furnace so as to face each other. The flame in the furnace 30 is blown out toward the center of the furnace to melt the glass in the furnace 30. An opening 38 for discharging the molten glass through the furnace is provided at one location, and a throat 39 for discharging the molten glass to the outside of the furnace is provided on the rear wall. Then, the glass raw material charged into the glass melting furnace 30 from the charging port 37 is heated and melted by the oxyfuel combustion burners 33, 34, 35 and 36, and the melted glass flows to the refining chamber via the throat 39. I have.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来のガラス溶融炉では、操業に当たって溶融するガラス
の材質や流量の変化等に対応してそれに適した炉内の温
度分布を得ることは難しい。その原因は、酸素燃焼バー
ナーは、空気燃焼バーナーに比べて、幅が狭い高温の火
炎が生じるため火炎が当たる部所が特に高温に加熱され
ると共に、この酸素燃焼バーナーの燃焼によって生じる
高温度の排ガスが熱流束帯となって、一ケ所の開口部に
向かって流れる結果、この流路に沿った帯域を特に加熱
するからである。However, in the above-mentioned conventional glass melting furnace, it is difficult to obtain an appropriate temperature distribution in the furnace in response to changes in the material and flow rate of the glass to be melted during operation. The reason is that the oxyfuel burner generates a high-temperature flame with a narrower width than the air combustion burner, so that the area where the flame hits is heated to a particularly high temperature, and the high temperature generated by the combustion of the oxyfuel burner. This is because the exhaust gas becomes a heat flux zone and flows toward one opening, so that the zone along the flow path is particularly heated.
【０００５】先記従来のガラス溶融炉にあっては、炉内
の温度分布を、酸素燃焼バーナーの調節、それらの追
加、削減或いはそれの配設位置等により、ある程度調節
することは可能であるが、開口部に向かって流れる排ガ
スの熱流束帯の流れ方向は常に一定で一方向であり、そ
の流れ方向を制御することができず、そのため炉の操業
に適した温度分布の調整が困難であった。特に、炉幅に
対して長手方向が長いガラス溶融炉では、開口部に向か
う排ガスの熱流束帯が長くなり、炉内の温度分布を調整
することはより困難であるという欠点があった。In the above-mentioned conventional glass melting furnace, it is possible to adjust the temperature distribution in the furnace to some extent by adjusting the oxyfuel burners, adding or reducing them, or arranging them. However, the flow direction of the heat flux zone of the exhaust gas flowing toward the opening is always constant and unidirectional, and the flow direction cannot be controlled, so that it is difficult to adjust the temperature distribution suitable for furnace operation. Was. In particular, in a glass melting furnace whose longitudinal direction is long with respect to the furnace width, the heat flux zone of the exhaust gas toward the opening becomes long, and it is more difficult to adjust the temperature distribution in the furnace.
【０００６】本発明は上記事情に鑑みてなされたもので
あり、本発明の目的は、酸素燃焼バーナーを備えたガラ
ス溶融炉にあって、炉内の温度分布を操業に適するよう
に調整可能なガラス溶融炉を提供することである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a glass melting furnace having an oxy-fuel burner, in which the temperature distribution in the furnace can be adjusted to be suitable for operation. It is to provide a glass melting furnace.
【０００７】[0007]
【課題を解決するための手段】本発明のガラス溶融炉
は、ガラス溶融炉の両側壁に互いに対向して複数対配設
され、火炎を炉の中央に向けて噴出して炉内のガラスを
溶融する酸素燃焼バーナーと、前記酸素燃焼バーナーの
配設位置に関連して両側壁に複数個設けられ、炉内に発
生する排ガスを炉外へ排出する開口部と、該開口部から
の排ガス量を調節する制御手段とを備えたことを特徴と
する。The glass melting furnace of the present invention is provided with a plurality of pairs facing each other on both side walls of the glass melting furnace, and emits a flame toward the center of the furnace to discharge the glass in the furnace. An oxygen combustion burner to be melted, an opening provided on both side walls in relation to the arrangement position of the oxyfuel burner, for discharging exhaust gas generated in the furnace to the outside of the furnace, and an exhaust gas amount from the opening. And control means for adjusting
【０００８】[0008]
【作用】本発明のガラス溶融炉では、炉の両側壁に互い
に対向して複数対設けられた酸素燃焼バーナーの配設位
置に関連して、排ガスを炉外に排出する開口部が複数個
設けられてあり、且つ該開口部のそれぞれには排ガス量
を調節する制御手段が設けてあるため、酸素燃焼バーナ
ーの燃焼によって生じる高温の排ガスの熱流束帯の流れ
が一方向ではなく各開口部のそれぞれに向かって分流し
て流れることになる。その結果、各開口部の制御手段を
適宜調節すれば排ガス量が変わり、それに伴って排ガス
の流れ幅及びその方向が変わり、ガラス溶融炉を操業に
最適な炉内の温度分布に調節することができる。In the glass melting furnace of the present invention, a plurality of openings for discharging exhaust gas to the outside of the furnace are provided in relation to the positions of a plurality of pairs of oxy-combustion burners provided opposite to each other on both side walls of the furnace. And a control means for adjusting the amount of exhaust gas is provided in each of the openings, so that the flow of the heat flux zone of the high-temperature exhaust gas generated by the combustion of the oxy-combustion burner is not in one direction but in each of the openings. It will shunt toward and flow. As a result, if the control means of each opening is adjusted appropriately, the amount of exhaust gas changes, the flow width and direction of the exhaust gas change accordingly, and the glass melting furnace can be adjusted to the optimal temperature distribution in the furnace for operation. it can.
【０００９】[0009]
【実施例】次に本発明に係る実施例を図面に基づいて詳
細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described in detail with reference to the drawings.
【００１０】図１、図２、図３において、１はガラス溶
融炉、２、３、４、５、６は酸素燃焼バーナー、７、８
は開口部、９、１０は排ガス量の制御手段であるダンパ
ーである。1, 2 and 3, 1 is a glass melting furnace, 2, 3, 4, 5, and 6 are oxy-fuel burners, 7, 8
Is an opening, and 9 and 10 are dampers as control means of the amount of exhaust gas.
【００１１】ガラス溶融炉１は、一側を前壁とし、他側
を後壁とし、前壁にはガラス原料１１を投入する投入口
１２を、後壁には溶融されたガラスが清澄室に流れるス
ロート１４を有している。The glass melting furnace 1 has a front wall on one side and a rear wall on the other side, an inlet 12 for charging a glass raw material 11 on the front wall, and a molten glass in a refining chamber on the rear wall. It has a flowing throat 14.
【００１２】炉１の両側壁１５、１６には、５対の酸素
燃焼バーナー２、３、４、５、６が互いに対向して配設
されており、それの火炎を双方から同時に炉１の中央に
向けて噴出して炉１内のガラス１３を溶融するようにな
っている。On both side walls 15 and 16 of the furnace 1, five pairs of oxy-fuel burners 2, 3, 4, 5, and 6 are disposed so as to face each other. The glass 13 in the furnace 1 is melted by squirting toward the center.
【００１３】炉１の両側壁１５、１６のそれぞれには、
酸素燃焼バーナーの位置に関連して複数個の開口部７、
８が設けられており、開口部７は酸素燃焼バーナー２と
３の間に、また開口部８は酸素燃焼バーナー４と５との
間にそれぞれ位置して設けられている。Each of the side walls 15 and 16 of the furnace 1 has
A plurality of openings 7, relative to the position of the oxyfuel burner,
An opening 7 is provided between the oxyfuel burners 2 and 3, and an opening 8 is provided between the oxyfuel burners 4 and 5.
【００１４】開口部７、８の各々の通路には操作軸１７
に取り付けられたダンパー１０が備えてあり、操作軸１
７を操作することによりダンパー１０の開度が変わり開
口部７、８から排出する排ガス量を調節するようになっ
ている。An operation shaft 17 is provided in each passage of the openings 7 and 8.
Is provided with a damper 10 attached to the operating shaft 1
The opening degree of the damper 10 is changed by operating the opening 7, and the amount of exhaust gas discharged from the openings 7 and 8 is adjusted.
【００１５】上記構成のガラス溶融炉１において、例え
ば、操作軸１７を操作してダンパー９の開度をダンパー
１０の開度に比べて大きくすると、酸素燃焼バーナー
２、３、４、５、６の燃焼による高温の排ガスの多くが
開口部７へ導かれそれに向かって流れるため、図１に示
す炉１内のＡ域付近の温度を高めることができる。In the glass melting furnace 1 having the above-described configuration, for example, if the opening of the damper 9 is made larger than the opening of the damper 10 by operating the operating shaft 17, the oxyfuel combustion burners 2, 3, 4, 5, 6 Most of the high-temperature exhaust gas resulting from the combustion of the gas is guided to the opening 7 and flows toward the opening 7, so that the temperature in the vicinity of the region A in the furnace 1 shown in FIG. 1 can be increased.
【００１６】他方、ダンパー９の開度をダンパー１０の
開度に比べて小さくすると、酸素燃焼バーナー２、３、
４、５、６の燃焼による高温の排ガスの多くが開口部８
へ導かれそれに向かって流れるため炉１内のＢ域付近の
温度を高めることができる。On the other hand, if the opening of the damper 9 is made smaller than the opening of the damper 10, the oxyfuel burners 2, 3,.
Most of the high-temperature exhaust gas from the combustion of 4, 5, and 6
The temperature in the vicinity of the area B in the furnace 1 can be increased because the water is guided toward the furnace and flows toward the furnace.
【００１７】このように各開口部７、８に設けたダンパ
ー９、１０の開度を変えることにより、炉内の排ガスの
流れ方向、幅を任意に変えることができるため、炉内を
操業に適した温度分布に調節することができる。By changing the opening degree of the dampers 9 and 10 provided in the openings 7 and 8 as described above, the flow direction and the width of the exhaust gas in the furnace can be arbitrarily changed. It can be adjusted to a suitable temperature distribution.
【００１８】尚、本発明にあたっては、開口部及び酸素
燃焼バーナーの数、それの配設位置は、溶融炉の大き
さ、寸法によって上記実施例に限定されるものでなく、
適宜に選択、変更可能である。また排ガス量を調節する
手段も実施例のダンパーに限定されない。In the present invention, the number of openings and the oxyfuel burners, and the arrangement positions thereof are not limited to the above-mentioned embodiment depending on the size and dimensions of the melting furnace.
It can be appropriately selected and changed. The means for adjusting the amount of exhaust gas is not limited to the damper of the embodiment.
【００１９】[0019]
【発明の効果】本発明のガラス溶融炉によれば、ガラス
溶融炉を操業に最適な炉内の温度分布に調整できる実用
的に大きな効果が発揮される。According to the glass melting furnace of the present invention, the glass melting furnace has a practically great effect of adjusting the temperature distribution in the furnace to be optimal for operation.
【図１】本発明の一実施例を示すガラス溶融炉の水平断
面図である。FIG. 1 is a horizontal sectional view of a glass melting furnace showing one embodiment of the present invention.
【図２】本発明の一実施例を示すガラス溶融炉の長手方
向の断面図である。FIG. 2 is a longitudinal sectional view of a glass melting furnace showing one embodiment of the present invention.
【図３】本発明の一実施例を示すガラス溶融炉のＸ−Ｘ
断面図である。FIG. 3 is a cross-sectional view of a glass melting furnace according to an embodiment of the present invention.
It is sectional drawing.
【図４】従来のガラス溶融炉の水平断面図ある。FIG. 4 is a horizontal sectional view of a conventional glass melting furnace.
１ ガラス溶融炉 ２、３、４、５、６ 酸素燃焼バーナー ７、８ 開口部 ９、１０ ダンパー DESCRIPTION OF SYMBOLS 1 Glass melting furnace 2, 3, 4, 5, 6 Oxygen combustion burner 7, 8 Opening 9, 10 Damper
Claims (1)
複数対配設され、火炎を炉の中央に向けて噴出して炉内
のガラスを溶融する酸素燃焼バーナーと、前記酸素燃焼
バーナーの配設位置に関連して両側壁に複数個設けら
れ、炉内に発生する排ガスを炉外へ排出する開口部と、
該開口部からの排ガス量を調節する制御手段とを備えた
ことを特徴とするガラス溶融炉。1. An oxygen combustion burner, which is provided in a plurality of pairs on both side walls of a glass melting furnace so as to face each other and injects a flame toward the center of the furnace to melt the glass in the furnace. An opening for discharging exhaust gas generated in the furnace to the outside of the furnace, a plurality of openings being provided on both side walls in relation to the arrangement position,
Control means for adjusting the amount of exhaust gas from said opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8238370A JPH1059727A (en) | 1996-08-20 | 1996-08-20 | Glass melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8238370A JPH1059727A (en) | 1996-08-20 | 1996-08-20 | Glass melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1059727A true JPH1059727A (en) | 1998-03-03 |
Family
ID=17029185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8238370A Pending JPH1059727A (en) | 1996-08-20 | 1996-08-20 | Glass melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1059727A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10360830A1 (en) * | 2003-12-23 | 2005-07-28 | Schott Ag | Glass or glass ceramic melt bath, is operated using oxygen burners arranged on both sides of the longitudinal axis |
| CN100378017C (en) * | 2004-11-24 | 2008-04-02 | Hoya株式会社 | Manufacturing method of glass and glass melting device |
| KR20140023312A (en) * | 2011-05-17 | 2014-02-26 | 아사히 가라스 가부시키가이샤 | Method for producing molten glass, glass-melting furnace, method for producing glass article, and device for producing glass article |
-
1996
- 1996-08-20 JP JP8238370A patent/JPH1059727A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10360830A1 (en) * | 2003-12-23 | 2005-07-28 | Schott Ag | Glass or glass ceramic melt bath, is operated using oxygen burners arranged on both sides of the longitudinal axis |
| DE10360830B4 (en) * | 2003-12-23 | 2008-04-10 | Schott Ag | Method for operating a melting tank |
| CN100378017C (en) * | 2004-11-24 | 2008-04-02 | Hoya株式会社 | Manufacturing method of glass and glass melting device |
| KR20140023312A (en) * | 2011-05-17 | 2014-02-26 | 아사히 가라스 가부시키가이샤 | Method for producing molten glass, glass-melting furnace, method for producing glass article, and device for producing glass article |
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