JPH1111953A - Melting of glass and device therefor - Google Patents
Melting of glass and device thereforInfo
- Publication number
- JPH1111953A JPH1111953A JP9159615A JP15961597A JPH1111953A JP H1111953 A JPH1111953 A JP H1111953A JP 9159615 A JP9159615 A JP 9159615A JP 15961597 A JP15961597 A JP 15961597A JP H1111953 A JPH1111953 A JP H1111953A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- melting
- raw material
- burner
- flame
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B3/00—Charging the melting furnaces
- C03B3/02—Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
- C03B3/026—Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet by charging the ingredients into a flame, through a burner or equivalent heating means used to heat the melting furnace
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ガラスの溶解方法
及び装置に関し、詳しくは、バーナーの燃焼火炎を熱源
としてガラスやセラミックスを加熱溶解するための溶解
炉における熱効率を向上させる方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for melting glass, and more particularly to a method and an apparatus for improving the thermal efficiency in a melting furnace for heating and melting glass and ceramics using a combustion flame of a burner as a heat source.
【0002】[0002]
【従来の技術】従来から、ガラス製造業界では、ガラス
溶解炉の省エネルギー化の達成に向けて各種の対策を実
施し、一応の成果を収めてきている。例えば、溶解炉の
保温・断熱性の向上や侵入空気の低減、排熱回収率を高
めるための蓄熱室の大型化やチェッカー煉瓦の材質・形
状の改善、原料へのカレット添加率の増加等が行われ、
これらによってエネルギー原単位を従来に比べて約20
%低減させている。さらに、現在では、排ガスでガラス
原料を予熱することによって熱回収効率を更に向上させ
ようとしており、また、バーナーとして従来の空気バー
ナーに代えて酸素バーナーを使用することにより、排ガ
ス熱損の低減,窒素酸化物(NOX)の低減,火炎温度
の上昇による溶解効率の向上等を図ることも実用化され
つつある。2. Description of the Related Art Conventionally, in the glass manufacturing industry, various measures have been taken to achieve energy saving in glass melting furnaces, and tentative results have been obtained. For example, improving the heat retention and heat insulation of the melting furnace, reducing the amount of invading air, increasing the size of the heat storage chamber to improve the rate of exhaust heat recovery, improving the material and shape of the checker brick, and increasing the cullet addition rate to the raw materials. Done,
As a result, the energy intensity can be reduced by about 20
%. Furthermore, at present, heat recovery efficiency is being further improved by preheating glass raw materials with exhaust gas, and by using an oxygen burner instead of a conventional air burner as a burner, the heat loss of the exhaust gas can be reduced. Attempts are being made to reduce nitrogen oxides (NOX) and improve the melting efficiency by raising the flame temperature.
【0003】[0003]
【発明が解決しようとする課題】しかし、ガラス溶解炉
では、主に、バーナーの燃焼火炎からの輻射伝熱及び燃
焼火炎によって加熱された炉内壁からの輻射伝熱によっ
てガラス原料を加熱溶解しているため、他の工業炉に比
較して熱効率が低く、燃焼火炎の放射率の大小が、熱効
率の優劣に大きな影響を及ぼしている。特に、天然ガス
等のガス燃料を用いた場合は、液体燃料を用いた場合と
比較して火炎の放射率が低いという問題があった。However, in the glass melting furnace, the glass material is heated and melted mainly by radiant heat transfer from the combustion flame of the burner and radiant heat transfer from the furnace inner wall heated by the combustion flame. Therefore, the thermal efficiency is lower than other industrial furnaces, and the magnitude of the emissivity of the combustion flame has a great influence on the thermal efficiency. In particular, when a gas fuel such as natural gas is used, there is a problem that the emissivity of the flame is lower than when a liquid fuel is used.
【0004】そこで本発明は、ガス燃料を使用した場合
でも燃焼火炎の放射率を高めることができ、熱効率の向
上を図ることができるガラスの溶解方法及び装置を提供
することを目的としている。Accordingly, an object of the present invention is to provide a method and an apparatus for melting glass in which the emissivity of a combustion flame can be increased even when a gas fuel is used, and the thermal efficiency can be improved.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明のガラスの溶解方法は、バーナーの燃焼火炎
を熱源としてガラス原料を加熱溶解するガラスの溶解方
法において、ガラス原料又はカレット又はこれらの混合
原料の少なくとも一部を含む粉粒体を前記バーナーの燃
焼火炎中に供給することを特徴とするもので、さらに、
前記粉粒体をキャリアガスによって前記バーナーに供給
することを特徴としている。Means for Solving the Problems In order to achieve the above object, a method for melting glass according to the present invention is a method for melting glass material by heating and melting the glass material using a combustion flame of a burner as a heat source. Characterized by supplying a powder containing at least a part of the mixed raw material into the combustion flame of the burner,
The powder is supplied to the burner by a carrier gas.
【0006】また、本発明のガラスの溶解装置は、溶解
室の前後に、原料投入部と清澄室とをそれぞれ連設する
とともに、前記溶解室に、ガラス原料を加熱溶解するた
めの燃焼火炎を生成する複数本のバーナーを備えたガラ
スの溶解装置において、前記溶解室の原料投入部側に設
置した少なくとも一つのバーナーに、ガラス原料又はカ
レット又はこれらの混合原料の少なくとも一部を含む粉
粒体を該バーナーの燃焼火炎中に供給するガラス原料供
給手段を設けたことを特徴としている。In the glass melting apparatus of the present invention, a raw material charging section and a fining chamber are respectively connected before and after the melting chamber, and a combustion flame for heating and melting the glass raw material is provided in the melting chamber. In a glass melting apparatus provided with a plurality of burners to be generated, at least one burner installed on the side of a raw material charging section of the melting chamber, wherein a powder or granule containing at least a part of a glass raw material or a cullet or a mixed raw material thereof. Is provided in the combustion flame of the burner.
【0007】[0007]
【発明の実施の形態】図1及び図2は、本発明の一形態
例を示すもので、図1はガラス溶解炉の横断面図、図2
は同じく縦断面図である。このガラス溶解炉は、5本の
バーナー1a〜1eを備えた溶解室2と、該溶解室2の
前後に連設した原料投入部3と清澄室4とからなるもの
で、原料投入部3から投入されたガラス原料やカレット
は、溶解室2においてバーナー1a〜1eの燃焼火炎か
らの輻射伝熱及び燃焼火炎によって加熱された炉内壁か
らの輻射伝熱によって加熱溶解された後、清澄室4で均
質化されて取出される。1 and 2 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a glass melting furnace, and FIG.
Is a longitudinal sectional view of the same. This glass melting furnace is composed of a melting chamber 2 having five burners 1a to 1e, a raw material charging section 3 and a refining chamber 4 connected to the front and rear of the melting chamber 2, and the raw material charging section 3 The charged glass raw material and cullet are heated and melted in the melting chamber 2 by radiant heat transfer from the combustion flame of the burners 1a to 1e and radiant heat transfer from the furnace inner wall heated by the combustion flame. It is homogenized and removed.
【0008】前記5本のバーナー1a〜1eの内、原料
投入部3に近い側に設置されている2本のバーナー1
a,1bには、プロパンガスや重油等を供給する燃料供
給路5と、酸素や空気を供給する支燃性ガス供給路6
と、ガラス原料又はカレット又はこれらの混合原料の少
なくとも一部を含む粉粒体を供給する原料粉粒体供給路
7とが設けられており、清澄室4側の3本のバーナー1
c〜1eには、燃料供給路5と支燃性ガス供給路6とが
設けられている。[0008] Of the five burners 1a to 1e, two burners 1 installed on the side close to the raw material charging section 3
a and 1b are provided with a fuel supply path 5 for supplying propane gas and heavy oil, etc., and a combustion supporting gas supply path 6 for supplying oxygen and air.
And a raw material powder supply path 7 for supplying a powder material containing at least a part of a glass raw material or a cullet or a mixed raw material thereof. The three burners 1 on the refining chamber 4 side are provided.
A fuel supply path 5 and a supporting gas supply path 6 are provided in c to 1e.
【0009】すなわち、原料投入部側のバーナー1a,
1bには、燃料供給路5からの燃料と支燃性ガス供給路
6からの支燃性ガスとの燃焼により生成する火炎中に、
ガラス原料からなる粉粒体を供給するガラス原料供給手
段である原料粉粒体供給路7が設けられており、原料粉
粒体供給路7から燃焼火炎中に供給した粉粒体を、燃焼
火炎からの輻射伝熱と対流伝熱とにより加熱できるよう
に形成している。That is, the burners 1a,
1b includes a flame generated by the combustion of the fuel from the fuel supply path 5 and the supporting gas from the supporting gas supply path 6,
A raw material / particle supply path 7 which is a glass raw material supply means for supplying a powder / particle made of a glass raw material is provided, and the powder / particles supplied from the raw material / particle supply path 7 into the combustion flame are converted into a combustion flame. It is formed so that it can be heated by radiant heat transfer and convective heat transfer.
【0010】このように、ガラス原料の一部を粉粒体と
して燃焼火炎中で加熱することにより、加熱されたガラ
ス原料からの固体放射を利用して火炎の放射率を向上さ
せることができ、炉内を効率よく加熱することができ
る。これにより、ガラスの溶解効率を大幅に向上させる
ことが可能となり、溶解炉単位受熱面積当たりのガラス
溶解量が向上し、生産性の向上が図れる。また、純酸素
を支燃性ガスとして用いた場合は、従来に比べて窒素酸
化物(NOX)の発生量の低減も図れる。As described above, by heating a part of the glass raw material as a granular material in a combustion flame, the emissivity of the flame can be improved by utilizing solid radiation from the heated glass raw material, The inside of the furnace can be efficiently heated. As a result, the melting efficiency of glass can be greatly improved, the amount of glass melt per unit heat receiving area of the melting furnace is improved, and productivity can be improved. In addition, when pure oxygen is used as the combustion supporting gas, the amount of generated nitrogen oxides (NOX) can be reduced as compared with the related art.
【0011】さらに、抜熱量が大きい原料投入部側のバ
ーナー1a,1bに原料粉粒体を供給することにより、
加熱効率の向上効果を大きくすることができる。一方、
ガラスが溶解した状態の清澄室側には、原料粉粒体供給
路7を持たない通常のバーナー1c〜1eを設けたこと
により、ガラスの清澄効果に悪影響を及ぼすことがなく
なる。Further, by supplying the raw material powder to the burners 1a and 1b on the side of the raw material charging section having a large heat removal amount,
The effect of improving the heating efficiency can be increased. on the other hand,
By providing the normal burners 1c to 1e without the raw material powder supply path 7 on the fining chamber side where the glass is melted, the fining effect of the glass is not adversely affected.
【0012】なお、原料粉粒体供給路7を設けたバーナ
ー1a,1bは、周知の粉体処理用のバーナーを用いる
ことが可能であり、例えば、中心に粉粒体流路、その外
側に燃料流路、最も外側に支燃性ガス流路を備えた三重
管構造のバーナーを用いることができる。また、原料粉
粒体供給路を持たない通常のバーナーノズルの近傍に、
バーナーとは別に原料粉粒体を噴出するノズルを設け、
該ノズルから燃焼火炎中に原料粉粒体を供給するように
してもよい。原料粉粒体の搬送は、機械的な手段で行っ
てもよいが、適宜なキャリアガス、例えば酸素ガスや空
気によって原料粉粒体を搬送することにより容易に行う
ことができる。また、バーナーに供給する燃料や支燃性
ガスの種類は任意であり、支燃性ガスとしては、大気か
ら純酸素まで適宜な酸素濃度のガスを用いることができ
る。As the burners 1a and 1b provided with the raw material powder supply passage 7, a well-known burner for powder processing can be used. A burner having a triple pipe structure having a fuel flow path and an outermost supporting gas flow path can be used. In addition, in the vicinity of a normal burner nozzle having no raw material powder supply path,
In addition to the burner, a nozzle for ejecting raw material granules is provided,
The raw material powder may be supplied from the nozzle into the combustion flame. The transport of the raw material particles may be performed by mechanical means, but can be easily performed by transporting the raw material particles with an appropriate carrier gas, for example, oxygen gas or air. Further, the kind of the fuel or the supporting gas supplied to the burner is arbitrary, and a gas having an appropriate oxygen concentration from the atmosphere to pure oxygen can be used as the supporting gas.
【0013】前記原料粉粒体としては、ガラス原料又は
カレット又はこれらの混合原料を破砕機等で数mm以
下、好ましくは、平均粒径10μm〜1mm程度に破砕
したものを用いることができる。このとき、粉粒体が大
き過ぎると、燃焼火炎中への供給が困難となるだけでな
く、重力による落下で燃焼火炎中での滞留時間が短くな
って十分な温度まで加熱できないことがある。逆に粉粒
体が小さすぎると、飛散してしまって放射率の向上効果
が十分に得られないことがある。As the raw material powder, a glass raw material, a cullet, or a mixed raw material of these materials obtained by crushing with a crusher or the like to several mm or less, preferably about 10 μm to 1 mm in average particle size can be used. At this time, if the powder is too large, not only the supply into the combustion flame becomes difficult, but also the residence time in the combustion flame becomes short due to the drop due to gravity, so that the powder may not be heated to a sufficient temperature. On the other hand, if the powder is too small, it may be scattered and the effect of improving the emissivity may not be sufficiently obtained.
【0014】図3及び図4は、従来から用いられている
蓄熱室を備えたガラス溶解炉に本発明を適用した形態例
を示すもので、図3は縦断面図、図4は横断面図であ
る。蓄熱室11a,11bは、ガラス溶解炉の溶解室1
2の両側に設置されており、内部には、煉瓦等の蓄熱材
13がそれぞれ充填されている。また、蓄熱室11a,
11bと溶解室12とは、複数の流路14a,14bを
介して接続しており、該流路14a,14bの近傍に、
燃料を噴出する燃料ノズル15a,15bがそれぞれ設
けられている。さらに、原料投入部16側の流路14
a,14bの近傍には、原料粉粒体を噴出する粉粒体ノ
ズル17a,17bが設けられている。3 and 4 show an embodiment in which the present invention is applied to a conventionally used glass melting furnace having a heat storage chamber. FIG. 3 is a longitudinal sectional view, and FIG. 4 is a transverse sectional view. It is. The heat storage chambers 11a and 11b are the melting chamber 1 of the glass melting furnace.
2 and are filled with heat storage materials 13 such as bricks, respectively. Also, the heat storage chamber 11a,
11b and the dissolution chamber 12 are connected via a plurality of flow paths 14a and 14b, and near the flow paths 14a and 14b,
Fuel nozzles 15a and 15b for ejecting fuel are provided, respectively. Further, the flow path 14 on the side of the raw material input section 16
In the vicinity of a and b, powder nozzles 17a and 17b for ejecting raw material powder are provided.
【0015】上記蓄熱室11a,11bは、一定時間、
例えば15〜20分毎に供給側と排気側とに切り換えら
れる。例えば、図左側の蓄熱室11aが供給側の場合
は、蓄熱材13によって加熱された大気が流路14aか
ら溶解室12内に噴出するとともに、燃料ノズル15a
から燃料が噴出して燃焼火炎が形成され、溶解室12内
の高温のガスは、他方の流路14bから蓄熱室11b内
に流入し、蓄熱材13を加熱することにより熱回収され
る。同時に、供給側流路14aの近傍に設けた粉粒体ノ
ズル17aから原料粉粒体を噴出させて燃焼火炎中に原
料粉粒体を供給することにより、前記同様に、加熱され
た原料粉粒体からの固体放射によって燃焼火炎の放射率
を向上させることができる。The heat storage chambers 11a and 11b are operated for a certain period of time.
For example, it is switched between the supply side and the exhaust side every 15 to 20 minutes. For example, when the heat storage chamber 11a on the left side of the drawing is on the supply side, the air heated by the heat storage material 13 is ejected from the flow path 14a into the melting chamber 12, and the fuel nozzle 15a
Then, the fuel is ejected from the combustion chamber to form a combustion flame, and the high-temperature gas in the melting chamber 12 flows into the heat storage chamber 11b from the other flow path 14b, and heat is recovered by heating the heat storage material 13. At the same time, the raw material particles are ejected from the granular material nozzle 17a provided in the vicinity of the supply side flow path 14a to supply the raw material particles into the combustion flame. The emissivity of the combustion flame can be increased by the solid radiation from the body.
【0016】[0016]
【発明の効果】以上説明したように、本発明によれば、
火炎の放射率が向上して炉内を効率よく加熱することが
できるので、ガラスの溶解効率を大幅に向上させること
が可能となり、溶解炉単位受熱面積当たりのガラス溶解
量が向上し、生産性の向上が図れる。As described above, according to the present invention,
Since the emissivity of the flame is improved and the inside of the furnace can be efficiently heated, the melting efficiency of the glass can be greatly improved, and the amount of glass melt per unit heat receiving area of the melting furnace is improved, thereby improving productivity. Can be improved.
【図1】 本発明の一形態例を示すガラス溶解炉の横断
面図である。FIG. 1 is a cross-sectional view of a glass melting furnace showing one embodiment of the present invention.
【図2】 同じく縦断面図である。FIG. 2 is a longitudinal sectional view of the same.
【図3】 本発明の他の形態例を示すガラス溶解炉の縦
断面図である。FIG. 3 is a longitudinal sectional view of a glass melting furnace showing another embodiment of the present invention.
【図4】 同じく横断面図である。FIG. 4 is a transverse sectional view of the same.
1a〜1e…バーナー、2…溶解室、3…原料投入部、
4…清澄室、5…燃料供給路、6…支燃性ガス供給路、
7…原料粉粒体供給路、11a,11b…蓄熱室、12
…溶解室、13…蓄熱材、14a,14b…流路、15
a,15b…燃料ノズル、16…原料投入部、17a,
17b…粉粒体ノズル1a to 1e: burner, 2: melting chamber, 3: raw material charging section,
4 ... Refining chamber, 5 ... Fuel supply path, 6 ... Combustible gas supply path,
7: raw material powder supply path, 11a, 11b: heat storage chamber, 12
... melting chamber, 13 ... heat storage material, 14a, 14b ... flow path, 15
a, 15b: fuel nozzle, 16: raw material charging section, 17a,
17b: Powder nozzle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 萩原 義之 東京都港区西新橋1−16−7 日本酸素株 式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiyuki Hagiwara Nippon Sanso Co., Ltd. 1-16-7 Nishi-Shimbashi, Minato-ku, Tokyo
Claims (3)
原料を加熱溶解するガラスの溶解方法において、ガラス
原料又はカレット又はこれらの混合原料の少なくとも一
部を含む粉粒体を前記バーナーの燃焼火炎中に供給する
ことを特徴とするガラスの溶解方法。1. A glass melting method in which a glass raw material is heated and melted by using a combustion flame of a burner as a heat source, wherein a glass material, a cullet, or a granular material containing at least a part of a mixed raw material thereof is introduced into the combustion flame of the burner. A method for melting glass, which comprises supplying the glass.
記バーナーに供給することを特徴とする請求項1記載の
ガラスの溶解方法。2. The method for melting glass according to claim 1, wherein the powder is supplied to the burner by a carrier gas.
をそれぞれ連設するとともに、前記溶解室に、ガラス原
料を加熱溶解するための燃焼火炎を生成する複数本のバ
ーナーを備えたガラスの溶解装置において、前記溶解室
の原料投入部側に設置した少なくとも一つのバーナー
に、ガラス原料又はカレット又はこれらの混合原料の少
なくとも一部を含む粉粒体を該バーナーの燃焼火炎中に
供給するガラス原料供給手段を設けたことを特徴とする
ガラスの溶解装置。3. A raw material charging section and a refining chamber are respectively connected before and after the melting chamber, and a plurality of burners for generating a combustion flame for heating and melting the glass raw material are provided in the melting chamber. In the glass melting apparatus, a powder material containing at least a part of a glass material or a cullet or a mixed material thereof is supplied to at least one burner provided on a material charging section side of the melting chamber into a combustion flame of the burner. An apparatus for melting glass, comprising: a glass raw material supply means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15961597A JP4095136B2 (en) | 1997-06-17 | 1997-06-17 | Glass melting method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15961597A JP4095136B2 (en) | 1997-06-17 | 1997-06-17 | Glass melting method and apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1111953A true JPH1111953A (en) | 1999-01-19 |
JP4095136B2 JP4095136B2 (en) | 2008-06-04 |
Family
ID=15697593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15961597A Expired - Lifetime JP4095136B2 (en) | 1997-06-17 | 1997-06-17 | Glass melting method and apparatus |
Country Status (1)
Country | Link |
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JP (1) | JP4095136B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006199549A (en) * | 2005-01-21 | 2006-08-03 | Tokyo Institute Of Technology | Method and apparatus for dissolving glass material and glass production apparatus |
JP2007153676A (en) * | 2005-12-06 | 2007-06-21 | Daido Steel Co Ltd | Premelting method for glass raw material |
JP2008100865A (en) * | 2006-10-18 | 2008-05-01 | Daido Steel Co Ltd | Glass melting apparatus |
JP2008120609A (en) * | 2006-11-09 | 2008-05-29 | Daido Steel Co Ltd | Glass melting method |
JP2008285381A (en) * | 2007-05-21 | 2008-11-27 | Daido Steel Co Ltd | Glass melting furnace |
JP2008285382A (en) * | 2007-05-21 | 2008-11-27 | Daido Steel Co Ltd | Glass bottle production apparatus |
JP2012164128A (en) * | 2011-02-07 | 2012-08-30 | Fuji Xerox Co Ltd | Image processing apparatus and program |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3337324A (en) * | 1963-04-30 | 1967-08-22 | Union Carbide Corp | Process for melting and refining glass batch |
JPS503084B1 (en) * | 1970-12-29 | 1975-01-31 | ||
JPS5241624A (en) * | 1975-09-27 | 1977-03-31 | Central Glass Co Ltd | Method of melting glass material |
JPS5359713A (en) * | 1976-09-04 | 1978-05-29 | Battelle Development Corp | Method of melting glass in pot heated by burner and apparatus for said process |
JPH03197327A (en) * | 1989-12-26 | 1991-08-28 | Nippon Electric Glass Co Ltd | Method for evaluating foam cleaning performance of continuous glass melt furnace |
JPH07503228A (en) * | 1992-09-14 | 1995-04-06 | シュラー インターナショナル インコーポレーテッド | Method and apparatus for melting and refining glass in a furnace using oxy-combustion |
JPH07190328A (en) * | 1993-12-28 | 1995-07-28 | Nippon Sanso Kk | Incinerated ash melting apparatus |
-
1997
- 1997-06-17 JP JP15961597A patent/JP4095136B2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3337324A (en) * | 1963-04-30 | 1967-08-22 | Union Carbide Corp | Process for melting and refining glass batch |
JPS503084B1 (en) * | 1970-12-29 | 1975-01-31 | ||
JPS5241624A (en) * | 1975-09-27 | 1977-03-31 | Central Glass Co Ltd | Method of melting glass material |
JPS5359713A (en) * | 1976-09-04 | 1978-05-29 | Battelle Development Corp | Method of melting glass in pot heated by burner and apparatus for said process |
JPH03197327A (en) * | 1989-12-26 | 1991-08-28 | Nippon Electric Glass Co Ltd | Method for evaluating foam cleaning performance of continuous glass melt furnace |
JPH07503228A (en) * | 1992-09-14 | 1995-04-06 | シュラー インターナショナル インコーポレーテッド | Method and apparatus for melting and refining glass in a furnace using oxy-combustion |
JPH07190328A (en) * | 1993-12-28 | 1995-07-28 | Nippon Sanso Kk | Incinerated ash melting apparatus |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006199549A (en) * | 2005-01-21 | 2006-08-03 | Tokyo Institute Of Technology | Method and apparatus for dissolving glass material and glass production apparatus |
JP4565185B2 (en) * | 2005-01-21 | 2010-10-20 | 国立大学法人東京工業大学 | Glass raw material melting method and melting apparatus, and glass manufacturing apparatus |
JP2007153676A (en) * | 2005-12-06 | 2007-06-21 | Daido Steel Co Ltd | Premelting method for glass raw material |
JP2008100865A (en) * | 2006-10-18 | 2008-05-01 | Daido Steel Co Ltd | Glass melting apparatus |
JP4624971B2 (en) * | 2006-10-18 | 2011-02-02 | 大同特殊鋼株式会社 | Glass melting equipment |
JP2008120609A (en) * | 2006-11-09 | 2008-05-29 | Daido Steel Co Ltd | Glass melting method |
JP4693178B2 (en) * | 2006-11-09 | 2011-06-01 | 大同特殊鋼株式会社 | Glass melting method |
JP2008285381A (en) * | 2007-05-21 | 2008-11-27 | Daido Steel Co Ltd | Glass melting furnace |
JP2008285382A (en) * | 2007-05-21 | 2008-11-27 | Daido Steel Co Ltd | Glass bottle production apparatus |
JP2012164128A (en) * | 2011-02-07 | 2012-08-30 | Fuji Xerox Co Ltd | Image processing apparatus and program |
Also Published As
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