JP2002128528A5

JP2002128528A5 -

Info

Publication number: JP2002128528A5
Application number: JP2001241987A
Authority: JP
Filing date: 2001-08-09
Publication date: 2005-06-02
Anticipated expiration: 2021-08-09

Description

（２）加熱された容器内の溶融ガラスに、該ガラスの原料を投入して溶融する工程を備えたガラスの製造方法であって、上記容器内を乾燥雰囲気ガスで満たすと共に、該雰囲気ガスをガラス原料の投入経路に沿って溶融ガラス液面へ流しながら、ガラス原料を投入することを特徴とするガラスの製造方法（以下、製造方法IIと称す。）、
（３）加熱された容器内の溶融ガラスに、該ガラスの原料を投入して溶融する工程を備えたガラスの製造方法であって、前記容器の上部に設けた原料投入口から前記容器内の溶融ガラス液面付近へ延びる隔壁によって囲まれたガラス原料の投入経路から、ガラス原料を溶融ガラスに投入することを特徴とするガラスの製造方法、 (2) A method for producing glass comprising the step of charging a raw material of the glass into molten glass in a heated container and melting it, wherein the inside of the container is filled with a dry atmosphere gas and the atmosphere gas is A method for producing glass (hereinafter referred to as production method II), characterized in that the glass raw material is charged while flowing to the molten glass liquid surface along the feeding path of the glass raw material.
(3) A method for producing a glass comprising the step of charging a raw material of the glass into molten glass in a heated container and melting the molten glass, wherein the inside of the container is provided from a raw material inlet provided at the top of the container. A method of producing glass characterized in that the glass material is introduced into the molten glass from an introduction path of the glass material surrounded by the partition extending to the vicinity of the liquid surface of the molten glass;

（４）ガラス原料を投入し、加熱、溶融して溶融ガラスを得るガラス溶融装置であって、ガラス原料を溶融する容器と、容器中の溶融ガラスに酸化性ガスを供給する酸化性ガス供給口と、前記酸化性ガス供給口の上方に配置されたガラス原料を投入する原料投入口を、主要構成要素として備えていることを特徴とするガラス溶融装置（以下、ガラス溶融装置Ｉと称す。）、及び ( 4 ) A glass melting apparatus for charging a glass material, heating and melting to obtain a molten glass, wherein a container for melting the glass material and an oxidizing gas supply port for supplying an oxidizing gas to the molten glass in the container A glass melting apparatus (hereinafter, referred to as a glass melting apparatus I) comprising, as a main component, a raw material charging port for charging a glass raw material disposed above the oxidizing gas supply port. ,as well as

（５）ガラス原料を投入し、加熱、溶融して溶融ガラスを得るガラス溶融装置であって、ガラス原料を加熱、溶融するとともに、得られた溶融ガラスを貯める容器と、この容器に連接して設けられた原料投入口と、該容器内を満たす乾燥雰囲気ガスを供給する雰囲気ガス供給口と、前記雰囲気ガスを排気する雰囲気ガス排気口を、主要構成要素として備え、かつ雰囲気ガス供給口からガラス原料投入経路に沿って溶融ガラス液面へと向かい、排気口に至る雰囲気ガスの流路が形成されるように、前記容器の内部が区分されていることを特徴とするガラス溶融装置（以下、ガラス溶融装置IIと称す。）
（６）ガラス原料を投入し、加熱、溶融して溶融ガラスを得るガラス溶融装置であって、ガラス原料を加熱、溶融するとともに、得られた溶融ガラスを貯める容器と、前記容器の上部に設けられた原料投入口と、原料投入口から前記容器内の溶融ガラス液面付近へ延びる隔壁によって囲まれたガラス原料の投入経路とを備えていることを特徴とするガラス溶融装置、
を提供するものである。 ( 5 ) A glass melting apparatus for charging a glass raw material and heating and melting it to obtain a molten glass, wherein the glass raw material is heated and melted and a container for storing the obtained molten glass is connected to this container A raw material inlet provided, an atmosphere gas supply port for supplying a dry atmosphere gas filling the container, and an atmosphere gas exhaust port for exhausting the atmosphere gas are provided as main components, and glass is provided from the atmosphere gas supply port A glass melting apparatus (hereinafter referred to as “the glass melting apparatus (hereinafter referred to as“ the inside of the container ”is divided so that a flow path of an atmosphere gas is formed along the raw material charging path toward the molten glass liquid surface and reaching the exhaust port). It calls glass melting device II.)
(6) A glass melting apparatus for charging a glass material and heating and melting it to obtain a molten glass, wherein the glass material is heated and melted, and a container for storing the obtained molten glass, and provided at the top of the container A glass melting apparatus comprising: the raw material charging port; and a feeding path of the glass raw material surrounded by a partition extending from the raw material charging port to the vicinity of the molten glass surface in the container;
To provide

Claims

A method for producing a glass, comprising the steps of: charging a raw material of the glass into molten glass in a heated container and melting the material, the oxidizing glass is bubbled in the molten glass and melted at the bubbling position. A method for producing glass, characterized in that a glass material exhibiting reducibility is introduced in the process of

A method for producing a glass, comprising the steps of: charging a raw material of the glass into molten glass in a heated container and melting the molten glass, wherein oxygen gas is bubbled through the molten glass and phosphate glass is placed at the bubbling position. A method of producing phosphate glass, characterized in that the raw materials of

The method for producing a glass according to claim 1 or 2, wherein a phosphate glass is melted using a metaphosphoric acid compound as a glass material.

The method for producing glass according to claim 3, wherein the fluorophosphate glass is melted using a fluorine compound as the glass material.

The amount of the glass material supplied and / or the discharge of the glass melt so that the depth of the molten glass at the position where the glass material is charged is 1.5 to 3 times the material charging height based on the liquid level of the molten glass. The method for producing a glass according to any one of claims 1 to 4, wherein the amount is controlled.

A method for producing glass comprising the step of charging a raw material of the glass into molten glass in a heated container and melting the same, wherein the inside of the container is filled with a dry atmosphere gas and the atmosphere gas is a glass raw material. A glass manufacturing method characterized by charging a glass raw material while flowing to a molten glass liquid surface along a charging path.

The manufacturing method of the glass of Claim 6 which fuses fluoride glass, using a fluorine compound as glass-making feedstock.

The method for producing glass according to claim 7, wherein the fluorophosphate glass is melted by further using a metaphosphoric acid compound as a glass raw material.

The method according to claim 6, wherein the boric acid-containing glass is melted using a boric acid compound as a glass raw material.

The method for producing glass according to any one of claims 6 to 9, wherein the oxidizing gas is bubbled into the molten glass, and a glass material exhibiting reducibility in the process of being melted is introduced into the bubbling position.

It is a manufacturing method of glass provided with the process of putting the raw material of this glass into molten glass in a heated container, and melting it, and it is the molten glass liquid in the said container from the raw material inlet provided in the upper part of the said container A glass manufacturing method characterized by charging a glass material to molten glass from a glass material supplying path surrounded by partition walls extending to the vicinity of a surface.

The manufacturing method of the glass of Claim 11 which inject | pours a glass-making feedstock continuously.

The method according to claim 11 or 12, wherein the depth of the molten glass liquid level is controlled by controlling the raw material input amount by the raw material supply mechanism and controlling the molten glass discharge amount by the molten glass discharge amount control mechanism.

The manufacturing method of the glass of any one of Claims 11-13 which flows dry atmosphere gas along the injection path | route of the said glass-making feedstock.

The method for producing a glass according to any one of claims 11 to 14, wherein the obtained glass is an optical glass.

The method for producing a glass according to any one of claims 11 to 15, wherein the obtained glass is any one of phosphate glass, fluoride glass, fluorophosphate glass, and boric acid-containing glass.

A glass melting apparatus for charging a glass material, heating and melting to obtain a molten glass, comprising: a container for melting the glass material; an oxidizing gas supply port for supplying an oxidizing gas to the molten glass in the container; What is claimed is: 1. A glass melting apparatus comprising a raw material inlet for feeding a glass raw material disposed above an oxidizing gas supply port as a main component.

Glass raw material supply amount and / or melting so that the depth at the position where the glass raw material of molten glass in the container is charged is 1.5 to 3 times the raw material charging height based on the liquid level of molten glass The glass melting apparatus according to claim 17 , further comprising a control mechanism that controls the discharge amount of the glass.

A glass melting apparatus for charging glass raw materials and heating and melting to obtain molten glass, wherein the glass raw materials are heated and melted, and a container for storing the obtained molten glass, and the container are provided so as to be connected. A raw material inlet, an atmosphere gas supply port for supplying a dry atmosphere gas filled in the container, and an atmosphere gas outlet for exhausting the atmosphere gas are provided as main components, and a glass material introduction path from the atmosphere gas supply port The inside of the said container is divided so that the flow path of atmosphere gas which goes to a molten glass liquid level and leads to an exhaust port may be formed along.

The heating portion for heating the molten glass from the side surface of the container having a cylindrical shape and the height of the liquid surface of the molten glass based on the bottom surface of the container are kept within the range of 25 to 10 times the inner diameter of the container. 20. The glass melting apparatus according to claim 19 , further comprising: a control mechanism for controlling the input amount of the glass material and / or the discharge amount of the molten glass.

An oxidizing gas drying in the molten glass comprises an oxidizing gas supply port for supplying, and the raw material inlet is glass melting apparatus according to claim 19 or 20 are disposed above the oxidizing gas supply port.

A glass melting apparatus for charging glass raw materials and heating and melting to obtain molten glass, wherein the glass raw materials are heated and melted and a container for storing the obtained molten glass, and a raw material provided at the upper part of the container What is claimed is: 1. A glass melting apparatus comprising: an inlet; and an inlet path of a glass raw material surrounded by a partition extending from the raw material inlet to the vicinity of a molten glass liquid surface in the container.

The glass melting apparatus according to claim 22, wherein the glass material is continuously introduced.

The glass melting apparatus according to claim 22 or 23, further comprising a control mechanism that controls at least one of the input amount of the glass material and the discharge amount of the molten glass.

A molten glass liquid is provided with a raw material supply amount control mechanism that controls the input amount of glass raw material, and a molten glass discharge amount control mechanism that controls the molten glass discharge amount, and controls the input amount of the glass raw material and the molten glass discharge amount. The glass melting apparatus of any one of Claims 22-24 which controls the depth of a surface.

26. The glass melting apparatus according to any one of claims 22 to 25, further comprising a raw material feeding mechanism for extruding the glass raw material previously prepared by the rotating screw and feeding the same into the interior of the container.

The glass melting apparatus according to claim 26, wherein the supply amount of the glass material is controlled by increasing or decreasing the number of rotations of a motor rotating a screw.