JPH08290918A - Structure of melting oven - Google Patents
Structure of melting ovenInfo
- Publication number
- JPH08290918A JPH08290918A JP11919695A JP11919695A JPH08290918A JP H08290918 A JPH08290918 A JP H08290918A JP 11919695 A JP11919695 A JP 11919695A JP 11919695 A JP11919695 A JP 11919695A JP H08290918 A JPH08290918 A JP H08290918A
- Authority
- JP
- Japan
- Prior art keywords
- working
- glass
- throat
- tapered
- working portion
- 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
- C03B5/20—Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch
-
- 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
- C03B5/225—Refining
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガラスの溶解炉を形成
している耐火物に起因して発生するする欠点の発生を防
止するための構造に関するもので、具体的にはスロート
部及び作業部のボトムの構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing the occurrence of defects caused by refractories forming a glass melting furnace, and more specifically to a throat part and a work. It relates to the structure of the bottom of the section.
【０００２】[0002]
【従来の技術】ガラス溶解炉の一般的な構造は、溶融部
と作業部とこれらを連通するスロート部によって構成さ
れており、それぞれが耐火物で形成されている。これら
の耐火物によりガラス溶融時や接触する溶融ガラスによ
ってアルミナ質やジルコニア質の耐火物成分を多量に含
む異質なガラスを形成し、溶融部や作業部の底部に堆積
していることは一般的によく知られている。2. Description of the Related Art The general structure of a glass melting furnace is composed of a melting part, a working part and a throat part connecting these parts, each of which is made of a refractory material. It is common for these refractories to form a heterogeneous glass containing a large amount of alumina- and zirconia-based refractory components when the glass melts or comes into contact with the molten glass, and is deposited on the bottom of the melting part or working part. Well known to.
【０００３】前記の溶融部や作業部の底部に堆積したア
ルミナ質やジルコニア質の耐火物成分を多量に含む異質
なガラスは、ガラスの引き上げ量の変動等によって溶解
炉内の溶融ガラスの対流が変化すると、多量にフィダー
部に流れ出し、成形されたガラス製品に「スジ不良」と
して発生する問題があった。The heterogeneous glass containing a large amount of alumina-based or zirconia-based refractory components deposited on the bottom of the melting section or the working section causes convection of the molten glass in the melting furnace due to fluctuations in the amount of pulling up the glass. When it changes, a large amount of it flows into the feeder portion, and there is a problem in that it occurs as "streak defects" in the molded glass product.
【０００４】特に、従来のスロート部と作業部の構造は
溶融ガラスと耐火物の接触面積が大きく、また、ガラス
流のデッドゾーンができ、水平な底部を有する作業部に
異質なガラスが堆積しやすく、上記のガラスの引き上げ
量の変動等による溶融ガラスの対流が変化によって、作
業部底部に堆積した異質ガラスの流出が著しい。しか
し、溶融部においては、高温のため耐火物の浸食量は多
いもののガラス対流が強い為に、異質ガラスは拡散し易
く、製品へのスジ不良発生の影響は少ないことが判明し
ている。In particular, the conventional structure of the throat part and the working part has a large contact area between the molten glass and the refractory, a dead zone of the glass flow is formed, and foreign glass is deposited on the working part having a horizontal bottom. Since the convection of the molten glass changes due to the fluctuation of the amount of pulling up the glass and the like, the outflow of the foreign glass deposited on the bottom of the working portion is remarkable. However, it has been found that in the molten portion, although the amount of erosion of the refractory is large due to the high temperature, the glass convection is strong, so that the foreign glass easily diffuses and the influence of streak defects on the product is small.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記のよう
な従来の問題点を解決して、ガラス溶解炉のスロート部
および作業部での耐火物との接触によって発生するアル
ミナ質やジルコニア質の耐火物成分を多量に含む異質な
ガラスの発生を抑えるために、溶融ガラス流のデッドゾ
ーンをなくし、前記異質ガラスが底部に堆積しない溶解
炉のスロート部と作業部のボトム構造を提供するもので
ある。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and solves the problems of the prior art such as alumina and zirconia generated by contact with refractories in the throat section and working section of a glass melting furnace. In order to suppress the generation of heterogeneous glass containing a large amount of refractory components, the dead zone of the molten glass flow is eliminated, and the bottom structure of the throat section and working section of the melting furnace in which the heterogeneous glass does not deposit on the bottom is provided. Is.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明は、ガラスの溶解炉において、スロ
ート部および作業部のボトム、又は作業部のボトムが溶
融部に向かって下方に傾斜するテーパ形状であることを
特徴とするものであり、該スロート部および作業部のボ
トム、又は作業部のボトムの傾斜テーパの角度が２０°
〜６０°であることが望ましい。DISCLOSURE OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, has been proposed in a glass melting furnace in which the bottom of the throat part and the working part, or the bottom of the working part is lowered toward the melting part. It is characterized by an inclined taper shape, and the angle of the inclined taper of the bottom of the throat part and the working part or the bottom of the working part is 20 °.
It is desirable that the angle is -60 °.
【０００７】ボトムのテーパ２０°以上としたのは作業
部ボトム付近での溶融ガラス流のデットゾーンとなるこ
とを防止するためであり、その結果異質なガラスの堆積
を防止するためである。一方、６０°以下としたのは作
業部の構造を構成する上で作業部の一定の容積の確保な
どに問題となるからである。なお、テーパは直線に限る
ものではなく、その接線が２０°〜６０°となる円弧で
あってもよいし、２ないし３段階の直線テーパが連設さ
れたものでもよい。。The taper of the bottom is set to 20 ° or more in order to prevent a molten glass flow from becoming a dead zone near the bottom of the working portion, and as a result, to prevent the deposition of foreign glass. On the other hand, the reason why the angle is set to 60 ° or less is that there is a problem in securing a certain volume of the working unit in constructing the structure of the working unit. Note that the taper is not limited to a straight line, and may be an arc whose tangent line is 20 ° to 60 °, or may be a series of two or three stages of linear taper. .
【０００８】また、スロート部のボトムが水平で作業部
のみがテーパを有した構造や、スロート部のボトムとそ
れに繋がる作業部の一部のボトムは水平とし、フィダー
に繋がる作業部の一部がテーパを有した構造であっても
よい。Also, the bottom of the throat part is horizontal and only the working part has a taper, or the bottom of the throat part and a part of the bottom part of the working part connected to it are horizontal, and part of the working part connected to the feeder is horizontal. The structure may have a taper.
【０００９】[0009]
【実施例】以下に本発明を図示の実施例によって説明す
る。図１は本発明の溶解炉の構造を示す実施例であり、
１は溶融部の下流方向の一部、２はスロート部、３は作
業部、４はフィダーの一部の断面を示している。本発明
を図５に示す従来の溶解炉の構造と比較してみると、従
来の構造ではスロート部２のボトム２′と作業部３のボ
トム３′は水平面によって構成されているが、本発明で
は溶融部３方向に傾斜する一定のテーパによって構成さ
れている。The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is an embodiment showing the structure of the melting furnace of the present invention,
Reference numeral 1 is a part of the fusion zone in the downstream direction, 2 is a throat section, 3 is a working section, and 4 is a cross section of a part of a feeder. Comparing the present invention with the structure of the conventional melting furnace shown in FIG. 5, in the conventional structure, the bottom 2'of the throat part 2 and the bottom 3'of the working part 3 are constituted by horizontal surfaces. In, it is constituted by a constant taper inclined in the fusion zone 3 direction.
【００１０】図２〜図４は本発明の他の実施例を示す断
面図であり、図２はスロート部２のボトム２′と作業部
３のボトム３′の傾斜を円弧で形成させたものであり、
図３は作業部３のボトム３′のみにテーパを形成したも
の、図４は作業部３のボトム３′に水平部と傾斜部を設
けたものである。2 to 4 are sectional views showing another embodiment of the present invention, and FIG. 2 shows the bottom 2'of the throat portion 2 and the bottom 3'of the working portion 3 formed by an arc. And
FIG. 3 shows that the bottom 3 ′ of the working part 3 is tapered, and FIG. 4 shows that the bottom 3 ′ of the working part 3 is provided with a horizontal part and an inclined part.
【００１１】[0011]
【作用】このように構成された本発明の溶解炉の構造
は、作業部に溶融ガラス流のデットゾーンが形成されに
くくなるので、溶解炉を形成している耐火物に起因する
アルミナ質やジルコニア質の耐火物成分を多量に含む異
質なガラスの堆積の防止が出来るので、ガラスの引上げ
量の変動によってガラスの対流が変化する場合でも異質
なガラスが流出されないので、スジ不良等のガラス素地
に係わる欠点の減少を大幅に図ることが可能となる。With the structure of the melting furnace of the present invention thus constructed, the dead zone of the molten glass flow is less likely to be formed in the working part, so that the alumina and zirconia caused by the refractory forming the melting furnace are formed. Since it is possible to prevent the deposition of foreign glass containing a large amount of high-quality refractory components, even if the glass convection changes due to fluctuations in the glass pulling amount, the foreign glass does not flow out, so it can be applied to glass substrates such as streak defects. It is possible to significantly reduce the defects involved.
【００１２】また、溶解炉のガラスの色替え時において
も、作業部のガラス流のデッドゾーンがなくなるので、
色ムラ不良の発生も防止することが可能となる。Further, even when the color of the glass in the melting furnace is changed, the dead zone of the glass flow in the working section disappears.
It is also possible to prevent the occurrence of defective color unevenness.
【００１３】[0013]
【発明の効果】以上説明したように本発明の溶解炉の構
造は、溶解炉を形成する耐火物に起因して不可避的に発
生する異質ガラスがもたらすガラス素地欠点を最小限に
減少させることが出来ることとなり、従って生産性も向
上することとなるので従来の問題点を解消することがで
き、業界に大いに寄与するものである。As described above, the structure of the melting furnace of the present invention can minimize the glass base defects caused by the foreign glass inevitably generated due to the refractory forming the melting furnace. Therefore, the productivity can be improved and the conventional problems can be solved, which greatly contributes to the industry.
【図１】本発明の実施例の溶解炉を示す断面図である。FIG. 1 is a sectional view showing a melting furnace of an embodiment of the present invention.
【図２】本発明の実施例を示す断面図である。FIG. 2 is a sectional view showing an embodiment of the present invention.
【図３】本発明の実施例を示す断面図である。FIG. 3 is a sectional view showing an embodiment of the present invention.
【図４】本発明の実施例を示す断面図である。FIG. 4 is a sectional view showing an embodiment of the present invention.
【図５】従来の溶解炉を示す断面図である。FIG. 5 is a sectional view showing a conventional melting furnace.
１ 溶融部 １′ボトム ２ スロート部 ２′ボトム ３ 作業部 ３′ボトム ４ フィダー 1 melting part 1'bottom 2 throat part 2'bottom 3 working part 3'bottom 4 feeder
Claims (2)
び作業部のボトム、又は作業部のボトムが溶融部に向か
って下方に傾斜するテーパ形状であることを特徴とする
溶解炉の構造。1. A melting furnace structure for glass, wherein the bottom of the throat portion and the working portion, or the bottom of the working portion is tapered so as to be inclined downward toward the melting portion.
業部のボトムの傾斜テーパの角度が２０°〜６０°であ
ることを特徴とする請求項１に記載の溶解炉の構造。2. The structure of the melting furnace according to claim 1, wherein the throat part and the bottom of the working part, or the angle of the inclined taper of the bottom of the working part is 20 ° to 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11919695A JPH08290918A (en) | 1995-04-20 | 1995-04-20 | Structure of melting oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11919695A JPH08290918A (en) | 1995-04-20 | 1995-04-20 | Structure of melting oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08290918A true JPH08290918A (en) | 1996-11-05 |
Family
ID=14755308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11919695A Pending JPH08290918A (en) | 1995-04-20 | 1995-04-20 | Structure of melting oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08290918A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1069080A1 (en) * | 1999-07-15 | 2001-01-17 | Glaverbel | Glassmaking tank furnace having a particular floor profile between sill and neck |
| KR20030090113A (en) * | 2002-05-21 | 2003-11-28 | 한국전기초자 주식회사 | Glass melter apparatus |
| EP3018106A1 (en) * | 2014-11-05 | 2016-05-11 | Johns Manville | Apparatus, systems and methods for processing molten glass |
| US9926219B2 (en) | 2012-07-03 | 2018-03-27 | Johns Manville | Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers |
| US9957184B2 (en) | 2011-10-07 | 2018-05-01 | Johns Manville | Submerged combustion glass manufacturing system and method |
| US10081565B2 (en) | 2010-06-17 | 2018-09-25 | Johns Manville | Systems and methods for making foamed glass using submerged combustion |
| US10196294B2 (en) | 2016-09-07 | 2019-02-05 | Johns Manville | Submerged combustion melters, wall structures or panels of same, and methods of using same |
| US10233105B2 (en) | 2016-10-14 | 2019-03-19 | Johns Manville | Submerged combustion melters and methods of feeding particulate material into such melters |
| US10246362B2 (en) | 2016-06-22 | 2019-04-02 | Johns Manville | Effective discharge of exhaust from submerged combustion melters and methods |
| US10301208B2 (en) | 2016-08-25 | 2019-05-28 | Johns Manville | Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same |
| US10392285B2 (en) | 2012-10-03 | 2019-08-27 | Johns Manville | Submerged combustion melters having an extended treatment zone and methods of producing molten glass |
| US10472268B2 (en) | 2010-06-17 | 2019-11-12 | Johns Manville | Systems and methods for glass manufacturing |
| US11613488B2 (en) | 2012-10-03 | 2023-03-28 | Johns Manville | Methods and systems for destabilizing foam in equipment downstream of a submerged combustion melter |
-
1995
- 1995-04-20 JP JP11919695A patent/JPH08290918A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1069080A1 (en) * | 1999-07-15 | 2001-01-17 | Glaverbel | Glassmaking tank furnace having a particular floor profile between sill and neck |
| KR20030090113A (en) * | 2002-05-21 | 2003-11-28 | 한국전기초자 주식회사 | Glass melter apparatus |
| US10081565B2 (en) | 2010-06-17 | 2018-09-25 | Johns Manville | Systems and methods for making foamed glass using submerged combustion |
| US10472268B2 (en) | 2010-06-17 | 2019-11-12 | Johns Manville | Systems and methods for glass manufacturing |
| US9776903B2 (en) | 2010-06-17 | 2017-10-03 | Johns Manville | Apparatus, systems and methods for processing molten glass |
| US9957184B2 (en) | 2011-10-07 | 2018-05-01 | Johns Manville | Submerged combustion glass manufacturing system and method |
| US9926219B2 (en) | 2012-07-03 | 2018-03-27 | Johns Manville | Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers |
| US11233484B2 (en) | 2012-07-03 | 2022-01-25 | Johns Manville | Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers |
| US10392285B2 (en) | 2012-10-03 | 2019-08-27 | Johns Manville | Submerged combustion melters having an extended treatment zone and methods of producing molten glass |
| US11613488B2 (en) | 2012-10-03 | 2023-03-28 | Johns Manville | Methods and systems for destabilizing foam in equipment downstream of a submerged combustion melter |
| EP3018106A1 (en) * | 2014-11-05 | 2016-05-11 | Johns Manville | Apparatus, systems and methods for processing molten glass |
| US10246362B2 (en) | 2016-06-22 | 2019-04-02 | Johns Manville | Effective discharge of exhaust from submerged combustion melters and methods |
| US10793459B2 (en) | 2016-06-22 | 2020-10-06 | Johns Manville | Effective discharge of exhaust from submerged combustion melters and methods |
| US10301208B2 (en) | 2016-08-25 | 2019-05-28 | Johns Manville | Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same |
| US11396470B2 (en) | 2016-08-25 | 2022-07-26 | Johns Manville | Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same |
| US10196294B2 (en) | 2016-09-07 | 2019-02-05 | Johns Manville | Submerged combustion melters, wall structures or panels of same, and methods of using same |
| US10233105B2 (en) | 2016-10-14 | 2019-03-19 | Johns Manville | Submerged combustion melters and methods of feeding particulate material into such melters |
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