JPH0369850B2 - - Google Patents
Info
- Publication number
- JPH0369850B2 JPH0369850B2 JP12627684A JP12627684A JPH0369850B2 JP H0369850 B2 JPH0369850 B2 JP H0369850B2 JP 12627684 A JP12627684 A JP 12627684A JP 12627684 A JP12627684 A JP 12627684A JP H0369850 B2 JPH0369850 B2 JP H0369850B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- glass
- melting
- glass base
- lead
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 31
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 22
- 239000005355 lead glass Substances 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- 238000006125 continuous glass melting process Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 description 10
- 239000006060 molten glass Substances 0.000 description 8
- 238000005352 clarification Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006121 base glass Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
-
- 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
- C03B5/173—Apparatus for changing the composition of the molten glass in glass furnaces, e.g. for colouring the molten glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はクリスタルガラスを溶融する炉に関す
るものにて、その溶融が連続的に実行できるクリ
スタルガラス溶融用フオーハースに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a furnace for melting crystal glass, and more particularly, to a forharth for melting crystal glass that can be continuously melted.
（従来の技術）
従来、通常の食器ガラスであるソーダ石灰シリ
カガラスの溶融は連続式溶融タンク炉を、クリス
タルガラスの溶融は比較的小規模なルツボ炉の使
用を主としている。（例えば、森谷太郎他「ガラ
ス工学ハンドブツク」昭．38.2.28.朝倉．p631）
（発明が解決しようとする問題点）
クリスタルガラスは、光の屈折や分散による特
有の輝きを有しているが、この性質を形成させて
いる要因の多くは原料に主として鉛又は鉛含有物
を添加することによつて得られているものであ
る。しかるに鉛又は鉛含有物を原料として用いる
が為に溶融時に炉材の侵食が強く、炉の改修頻度
を高めている。したがつてクリスタルガラスの溶
融炉は連続式タンク炉に比して規模を小さく抑制
したルツボ炉を主体とした溶融がされている。ル
ツボ炉での生産は、原料投入、溶融、成形の一サ
イクルを経て一時中断する断続的主産の繰り返し
である。通常の食器ガラスの溶融はタンク炉を使
い連続的に生産がされており、前者の場合の生産
効率は後者の場合に比して低い。また、クリスタ
ルガラスは多品種少量型の生産であるが現生産形
態は未だ充分なものとは言えず、通常の食器ガラ
スに比べ製品コストが高いことはまぬがれない。
したがつて、クリスタルガラスの連続式溶融の開
発が望まれている。(Prior Art) Conventionally, a continuous melting tank furnace has been mainly used for melting soda-lime-silica glass, which is ordinary tableware glass, and a relatively small-scale crucible furnace has been mainly used for melting crystal glass. (For example, Taro Moriya et al. "Glass Engineering Handbook" Showa. 38.2.28. Asakura. p631) (Problems to be solved by the invention) Crystal glass has a unique shine due to the refraction and dispersion of light. Many of the factors contributing to this property are obtained primarily by adding lead or lead-containing substances to the raw materials. However, since lead or a lead-containing material is used as a raw material, the furnace material is strongly eroded during melting, making it necessary to repair the furnace more frequently. Therefore, crystal glass is melted mainly in crucible furnaces, which are smaller in scale than continuous tank furnaces. Production in a crucible furnace is a cycle of raw material input, melting, and molding, followed by a cycle of intermittent production. Ordinary tableware glass is melted continuously using a tank furnace, and the production efficiency in the former case is lower than in the latter case. Furthermore, although crystal glass is produced in a wide variety of small quantities, the current production method is still not satisfactory, and it is inevitable that the product cost is higher than that of ordinary tableware glass.
Therefore, it is desired to develop continuous melting of crystal glass.
（問題点を解決するための手段）
本発明は上記問題点を解消することを目的とし
たもので連続式ガラス溶融タンク炉のフオーハー
スにおいて、原料投入装置と、フオーハース天井
より垂下しガラス素地面と接触した部分の炉材を
白金板で被覆した凸形状天井と、ガラス素地床面
にはフオーハースの側壁より複数本の電極を挿入
したガラス素地床面とで構成したガラス素地溶融
部と、フオーハース床の炉材表面及びフオーハー
ス両側壁の炉材内表面を白金板で被覆したガラス
素地清澄部を順次装設したことを特徴とするもの
である。(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems.In a continuous glass melting tank furnace, there is a raw material input device and a glass base surface that hangs down from the ceiling of the furnace. A glass base melting section consisting of a convex ceiling in which the furnace material in contact with the furnace material is covered with a platinum plate, and a glass base floor surface with multiple electrodes inserted from the side wall of the base glass base, and a glass base floor surface. The surface of the furnace material and the inner surface of the furnace material on both side walls of the furnace material are sequentially installed with glass base clarifiers coated with platinum plates.
（作用）
連続式ガラス溶融タンク炉には炉本体に連設し
て数基のフオーハースがあり、本発明は該フオー
ハースの任意のフオーハースに上記手段を構ずる
ものであり、該フオーハースにてクリスタルガラ
ス素地を溶融し、クリスタルガラス製品の成形に
供するものである。したがつて、該フオーハース
以外のフオーハースにおいては炉本体の溶融ガラ
ス素地の成形を通常通り実行することができるも
のである。本発明の原料投入装置はフオーハース
の入口部の天井に位置し、クリスタルガラス素地
の原料である鉛又は鉛含有物を供給する装置であ
る。ガラス素地溶融部は溶融ガラス素地内に投入
した鉛又は鉛含有物を溶融するための加熱手段と
して電極を使い、天井部を白金板で被覆し溶融時
の炉材への侵食を防止し、また炉材から不純物が
溶出し素地内に混入することを防止する作用を有
するものである。ガラス素地清澄部はクリスタル
ガラス素地の清澄を促進するためのものであり、
炉床及び炉側壁を白金板で被覆し炉材の侵食防止
及び炉材からの不純物混入を防止する構造を具備
するとともに、清純なクリスタルガラス素地を次
なる装置であるゴブフイーダーへ流入して、クリ
スタルガラス製品の成形に供するものである。(Function) A continuous glass melting tank furnace has several furnaces connected to the furnace body, and the present invention provides the above-mentioned means in any one of the furnaces. The base material is melted and used to form crystal glass products. Therefore, the molten glass base of the furnace body can be formed in the usual manner in the forhearths other than the foreharth. The raw material feeding device of the present invention is located on the ceiling of the entrance of the foreharth, and is a device for feeding lead or a lead-containing material, which is a raw material for a crystal glass base. The glass base melting section uses electrodes as a heating means to melt the lead or lead-containing materials put into the molten glass base, and the ceiling is covered with a platinum plate to prevent erosion of the furnace material during melting. It has the function of preventing impurities from leaching out of the furnace material and mixing into the base material. The glass substrate clarification section is for promoting the clarification of the crystal glass substrate.
The hearth and furnace side walls are coated with platinum plates to prevent corrosion of the furnace material and impurities from being mixed in from the furnace material.The pure crystal glass base is then flowed into the next device, the gob feeder, to produce crystals. It is used for forming glass products.
（実施例）
本発明に関して図面により実施例を詳述する。
第１図はフオーハースの縦断面図、第２図はフオ
ーハースの横断面図を表すものである。連続式ガ
ラス溶融タンク炉の炉本体１で通常の食器ガラス
素地を溶融し、該溶融ガラス２が炉本体１からフ
オーハースに移行したところで、原料投入装置３
によつて溶融ガラス２内に鉛又は鉛含有物を投入
する。該原料投入装置３はバケツト４と投入口５
よりなる従来既存の装置にて、原料投入量を予め
設定し連続的に投入する機能を有するものであ。
鉛又は鉛含有物の投入量は求めるクリスタルガラ
ス素地に応じ設定することができるものである。
溶融ガラス２に鉛又は鉛含有物を投入したる後、
ガラス素地混合手段として公知であるところのス
ターラー７を複数本設置し、溶融ガラスと鉛又は
鉛含有物を混合する。この時点では未だ鉛又は鉛
含有物は、溶融ガラス２内にあつて未溶融状態で
あり、次のガラス素地溶融部Ａへと移行し該部で
溶融される。該部はフオーハース天井８より垂下
し、フオーハース横全幅に渡る凸形状天井９を有
し、該天井はガラス素地面６と接触する部分及び
側部を白金板１０で被覆したるものにて、炉材の
侵食を抑制するとともに、炉材からガラス素地内
に不純物が混入することを防止するものであり、
床面１１上には複数本の加熱用電極１２を設置
し、鉛又は鉛含有物を加熱溶融し、クリスタルガ
ラス素地状溶融物を得る構造を有する。次にガラ
ス素地均質化手段として知られたる複数本のスタ
ーラー１３を用いて、ガラス素地を攪拌混合し、
溶融を促進し、堰１４を通して、次のガラス素地
清澄部Ｂへとガラス素地を移行させ、該部におい
て清澄させるとともに、更に複数本のスターラー
２１による攪拌をし、ガラス素地はクリスタルガ
ラス素地として清澄する。該部Ｂは、床面１５及
び側壁１７，１８のガラス素地接触内表面を白金
板１６，１９，２０で被覆した構造を有し、ガラ
ス素地の清澄を促進し、クリスタルガラス素地２
２を生成する。この後通常知られたるフイーダー
へと移行し、ガラス塊をつくり成形に供するもの
である。したがつて、本発明によるクリスタルガ
ラスの溶融は、通常の食器ガラスを溶融したる
後、鉛又は鉛含有物を投入してクリスタルガラス
素地を得るもので、溶融過程における炉材の侵食
は、該炉の主要部を白金板で被覆したことにより
防止することができ、万一該炉の改修をする場合
にも炉本体の改修は必要なく極く限られた部分、
即ちフオーハースの一部分改修で目的を達成する
ことが出来ることとなる。(Example) Examples of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a longitudinal cross-sectional view of the foreharth, and FIG. 2 is a cross-sectional view of the forehearth. A normal tableware glass substrate is melted in the furnace body 1 of the continuous glass melting tank furnace, and when the molten glass 2 has transferred from the furnace body 1 to the foreharth, the raw material input device 3
Lead or a lead-containing material is introduced into the molten glass 2 by the following steps. The raw material input device 3 has a bucket 4 and an input port 5.
This device has the function of setting the amount of raw materials to be input in advance and continuously inputting the raw materials.
The amount of lead or lead-containing material to be added can be set depending on the desired crystal glass base material.
After adding lead or a lead-containing substance to the molten glass 2,
A plurality of stirrers 7, which are known as glass base mixing means, are installed to mix the molten glass and lead or a lead-containing material. At this point, the lead or the lead-containing material is still in the molten glass 2 and is not melted, and moves to the next glass base melting section A, where it is melted. This section has a convex ceiling 9 that hangs down from the floor space ceiling 8 and spans the entire horizontal width of the floor space, and the ceiling is covered with a platinum plate 10 at the part that contacts the glass base surface 6 and at the sides. In addition to suppressing corrosion of the glass material, it also prevents impurities from entering the glass base from the furnace material.
A plurality of heating electrodes 12 are installed on the floor surface 11 to heat and melt lead or a lead-containing material to obtain a crystal glass base melt. Next, the glass base material is stirred and mixed using a plurality of stirrers 13 known as glass base homogenization means,
The melting is promoted, and the glass substrate is transferred to the next glass substrate clarification section B through the weir 14, where it is clarified and further stirred by a plurality of stirrers 21, and the glass substrate is clarified as a crystal glass substrate. do. This part B has a structure in which the inner surfaces of the floor surface 15 and side walls 17 and 18 that are in contact with the glass substrate are coated with platinum plates 16, 19, and 20, which promotes clarification of the glass substrate and improves the clarification of the crystal glass substrate 2.
Generate 2. Thereafter, the glass goes to a commonly known feeder, where a glass lump is formed and subjected to molding. Therefore, in the melting of crystal glass according to the present invention, after melting ordinary tableware glass, lead or a lead-containing material is added to obtain a crystal glass base, and corrosion of the furnace material during the melting process can be avoided. This can be prevented by covering the main part of the furnace with a platinum plate, and even if the furnace should be renovated, there is no need to renovate the furnace itself, and only a limited portion of the furnace can be renovated.
In other words, the objective can be achieved by partially renovating the foreground.
（発明の効果）
したがつて、本発明は次のような効果を有す
る。(Effects of the Invention) Therefore, the present invention has the following effects.
通常の食器ガラスとクリスタルガラスとを同
一炉で同時生産することができる。 Regular tableware glass and crystal glass can be produced simultaneously in the same furnace.
連続的にクリスタルガラス溶融ができる。 Capable of continuous crystal glass melting.
主要部を白金板で被覆することで、炉材の侵
食を効率的に防止できる。 By covering the main part with a platinum plate, corrosion of the furnace material can be efficiently prevented.
炉の改修は、炉本体に関係なく一部分の改修
で目的が達成できる。 When refurbishing a furnace, the objective can be achieved by refurbishing only a portion of the furnace, regardless of the furnace itself.
等特有の効果を持つものであり、クリスタルガ
ラスの生産効率の向上及び製品コストの低減に対
して、産業界に大きく貢献するものである。 It has unique effects such as these, and will greatly contribute to the industrial world by improving crystal glass production efficiency and reducing product costs.
図面は本発明の実施例を示し、第１図はフオー
ハースの縦断面を、第２図はフオーハースの横断
面を示す図面である。
１……炉本体、２……溶融ガラス、３……原料
投入装置、７，１３，２１……スターラー、９…
…凸形状天井、１２……電極、Ａ……ガラス素地
溶融部、１０，１６，１９，２０……白金板、Ｂ
……ガラス素地清澄部。
The drawings show an embodiment of the present invention, with FIG. 1 showing a longitudinal section of a forearth, and FIG. 2 showing a cross section of the foreharth. 1... Furnace body, 2... Molten glass, 3... Raw material input device, 7, 13, 21... Stirrer, 9...
... Convex ceiling, 12 ... Electrode, A ... Glass base melting part, 10, 16, 19, 20 ... Platinum plate, B
...Glass clearing department.
Claims (1)
おいて、原料投入装置と、フオーハース天井より
垂下しガラス素地面と接触した部分の炉材を白金
板で被覆した凸形状天井と、ガラス素地床面には
フオーハースの側壁より複数本の電極を挿入した
ガラス素地床面とで構成したガラス素地溶融部
と、フオーハース床の炉材表面及びフオーハース
両側壁の炉材内表面を白金板で被覆したガラス素
地清澄部を順次装設したことを特徴とするクリス
タルガラス溶融フオーハース。1. In a continuous glass melting tank furnace, there is a raw material input device, a convex ceiling in which the part of the furnace material that hangs down from the ceiling of the furnace and comes into contact with the glass base surface is covered with a platinum plate, and the glass base floor is equipped with a The glass base melting section consists of a glass base floor surface into which multiple electrodes are inserted from the side wall, and the glass base fining section consists of a platinum plate covering the furnace material surface of the furnace floor and the inner surface of the furnace material on both side walls of the furnace material. A crystal glass melting forharth characterized by the fact that it is equipped with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12627684A JPS616133A (en) | 1984-06-16 | 1984-06-16 | Forehearth for melting crystal glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12627684A JPS616133A (en) | 1984-06-16 | 1984-06-16 | Forehearth for melting crystal glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616133A JPS616133A (en) | 1986-01-11 |
| JPH0369850B2 true JPH0369850B2 (en) | 1991-11-05 |
Family
ID=14931193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12627684A Granted JPS616133A (en) | 1984-06-16 | 1984-06-16 | Forehearth for melting crystal glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616133A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819442A (en) * | 1981-07-27 | 1983-02-04 | Nippon Kokan Kk <Nkk> | Manufacture of high strength cold rolled steel plate for working by continuous annealing |
| JPH01225748A (en) * | 1988-03-04 | 1989-09-08 | Sumitomo Metal Ind Ltd | Cold rolled steel sheet excellent in fatigue strength and its production |
| DE102005050871B4 (en) * | 2005-10-24 | 2007-02-08 | Beteiligungen Sorg Gmbh & Co. Kg | Method and device for conditioning and homogenizing molten glass |
| CN102503138A (en) * | 2011-10-18 | 2012-06-20 | 武汉理工大学 | Colorizing method of building decoration microcrystalline glass produced by sintering method |
| TWI624440B (en) * | 2013-01-24 | 2018-05-21 | 康寧公司 | Process and appratus for refining molten glass |
| CN103130398B (en) * | 2013-03-25 | 2015-05-13 | 芜湖东旭光电科技有限公司 | Float glass runner |
| CN104176908B (en) * | 2014-07-29 | 2017-01-25 | 安徽盛世新能源材料科技有限公司 | Extended orifice of crystal glass sheet molding furnace |
| JP6856389B2 (en) * | 2017-01-27 | 2021-04-07 | 東洋ガラス株式会社 | Fore Hearth |
-
1984
- 1984-06-16 JP JP12627684A patent/JPS616133A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616133A (en) | 1986-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1033981A (en) | The method of homogenizing flat glass and device thereof | |
| US4693740A (en) | Process and device for melting, fining and homogenizing glass | |
| KR920003221B1 (en) | Energy saving method for melting glass and glass melting furnace for the practice of the method | |
| CN101253124B (en) | Method of increasing the effectiveness of a fining agent in a glass melt | |
| US6085551A (en) | Method and apparatus for manufacturing high melting point glasses with volatile components | |
| EP1618074B1 (en) | Melting and refining in baths with cooled walls | |
| US20090176639A1 (en) | Method and furnace with series-arranged baths for producing glass frits | |
| US1953023A (en) | Method and apparatus for making glass | |
| TWI412501B (en) | Vorrichtung und verfahren zur herstellung von displayglas | |
| CN101679090A (en) | Reduce the method for gaseous inclusion in the technology for making glass | |
| JP2010229033A (en) | Furnace with series-arranged baths for producing glass compounds having a low degree of unmelted material | |
| CN1006883B (en) | Improvements in or relating to glass melting tanks and to refractory materials for use therein | |
| KR20040072468A (en) | Molten glass supply device, glass formed product, and method of producing the glass formed product | |
| JPS5837255B2 (en) | Method and apparatus for homogenizing and fining glass | |
| CN112830661B (en) | Large-length-width ratio high-electrical load type mixed melting kiln and melting process | |
| US3294505A (en) | Process of producing glass in a cupola | |
| JPH0369850B2 (en) | ||
| DE59408130D1 (en) | Process for melting glass in a furnace and furnace for this | |
| JPH04504708A (en) | Melting furnace and method for glass production | |
| US1953034A (en) | Shallow melting tank | |
| JP6943136B2 (en) | Glass melting furnace and manufacturing method of glass articles | |
| CN103359910A (en) | Making method of glass plate | |
| US3108149A (en) | Method and apparatus for glass melting | |
| US3325268A (en) | Method of charging and melting a glass batch | |
| US4246432A (en) | Method and apparatus for melting frits for inorganic oxidic surface coatings by electric resistance heating |