CN216738054U

CN216738054U - Gas melting is drawn with quartz glass combustor even

Info

Publication number: CN216738054U
Application number: CN202220382539.8U
Authority: CN
Inventors: 花宁; 徐肖飞; 隋镁深; 余振华; 秦建鸿; 蔡广勇; 王友军; 孔敏
Original assignee: Cnbm Quzhou Jingelan Quartz Co ltd
Current assignee: Cnbm Quzhou Jingelan Quartz Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-14
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a quartz glass burner for gas melting continuous drawing, which comprises a lampshade, a lamp holder, an oxygen pipe, a hydrogen pipe and a discharging pipe, wherein: the lampshade is provided with a first step and a second step, the first step is positioned in the center of the lampshade, the second step is positioned on the periphery of the first step, and the first step is higher than the second step; the top of the lamp holder penetrates through the first ladder; the hydrogen pipe is arranged on the second ladder, the hydrogen pipe is communicated with the lampshade, and the bottom end of the hydrogen pipe extends into the lampshade; the blanking pipe is arranged on the outer edge of the second step and close to the position of the hydrogen pipe, the blanking pipe is communicated with the lampshade, the bottom end of the blanking pipe extends into the lampshade, and the bottom of the blanking pipe extending into the lampshade is tightly attached to the inner wall of the lampshade. The utility model can lead the quartz powder to slide to the center of the melting bath along the inner surface of the quartz burner cavity, lead the melting to only have a blanking central point and not to generate pits, and further improve the quality of the quartz glass.

Description

Gas melting is drawn with quartz glass combustor even

Technical Field

The utility model belongs to the technical field of quartz glass production instruments, and particularly relates to a quartz glass burner for gas melting continuous drawing.

Background

The quartz glass is a high and new technology material widely applied, such as a quartz glass crucible used in the semiconductor industry, a quartz glass bulb shell used for a novel light source, radiation-resistant quartz glass used for aerospace, a quartz glass holding rod used for manufacturing optical fibers and the like.

The requirements of the communication field are increased at a high speed under the promotion of related projects such as broadband China, fixed network superposition 5G and the like, in the optical communication field, quartz glass materials are mainly used for producing and manufacturing optical fiber preforms, preform production supporting materials and supporting materials for optical fiber drawing, and customers are mainly downstream optical fiber manufacturing enterprises. The process for producing the supporting material by the optical fiber preform rod mainly comprises a gas smelting method and a continuous melting method, the continuous melting product has price advantage compared with a gas smelting product, but the durability is relatively poor, the continuous melting and continuous drawing of the supporting material by the optical fiber preform rod are realized on the basis of the gas smelting, the production of the supporting material by the optical fiber preform rod is just started at home, and a quartz glass burner is the key of the gas melting and continuous drawing process.

As shown in the attached figure 1, a quartz glass burner generally comprises a main feeding pipe, a conical material dispersing device is arranged at the bottom of the feeding pipe, then, hydrogen or oxygen or inert gas is used as loading gas to bring quartz powder into a plurality of branch feeding pipes to enter a burner cavity, and the quartz powder is scattered by airflow and then is scattered on the surface of a target holder to be deposited.

A plurality of branch discharging pipes are used for dispersing discharging, so that the quartz powder is blown away by the material carrying gas more easily. The target support is rotated when the quartz glass ingot is deposited, so that the quartz powder can be uniformly distributed on the deposition surface, the center of the quartz glass ingot is not sunken, pits can appear when the middle growth speed is slower than that of the periphery, and existing bubbles can not be brought into the quartz glass ingot. The bottom end of the hydrogen pipe in the quartz glass burner cavity is parallel to the blanking pipe, and the effect of blowing off the quartz powder is poor.

In the gas-melting continuous drawing process, quartz glass is melted into a molten pool, and the molten pool is fixed, so that the uniform quantity of materials going down from a plurality of branch blanking pipes is difficult to ensure, a plurality of pits appear under the condition that the blanking of the branch blanking pipes is not uniform, and bubbles are brought into the quartz glass to influence the product quality.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a quartz glass burner for gas melting continuous drawing, which is used for solving the product quality problem caused by non-uniformity after a plurality of material distributing pipes are fed.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a gas melts even draws uses quartz glass combustor, includes lamp shade, lamp stand, oxygen hose, hydrogen pipe and unloading pipe, and the lamp stand sets up in the lamp shade, wherein: the lampshade is provided with a first step and a second step, the first step is positioned in the center of the lampshade, the second step is positioned on the peripheral circumference of the first step, and the first step is higher than the second step; the top of the lamp holder penetrates through the first ladder; the hydrogen pipe is arranged on the second ladder, the hydrogen pipe is communicated with the lampshade, and the bottom end of the hydrogen pipe extends into the lampshade; the blanking pipe is arranged on the outer edge of the second step and close to the position of the hydrogen pipe, the blanking pipe is communicated with the lampshade, the bottom end of the blanking pipe extends into the lampshade, and the bottom of the blanking pipe extending into the lampshade is tightly attached to the inner wall of the lampshade.

As a further technical scheme of the quartz glass burner for gas melting continuous drawing, a bend angle of 30-150 degrees is arranged at the bottom end of the hydrogen tube, and the opening of the bend angle faces the inner wall of the lampshade.

As a further technical scheme of the quartz glass burner for gas melting continuous drawing, a group of hydrogen tubes is provided, and the group of hydrogen tubes is symmetrical by taking the top of the lamp holder as a central axis.

As a further technical scheme of the quartz glass burner for gas melting continuous drawing, an oxygen pipe is arranged on the outer circumference of the top of the lamp holder and is communicated with the lamp holder.

As a further technical scheme of the quartz glass burner for gas melting continuous drawing, the oxygen pipes are in a group, and the group of oxygen pipes is symmetrical by taking the top of the lamp holder as a central axis.

As the preferable technical scheme of the quartz glass burner for gas melting continuous drawing, a plurality of lamp core tubes are arranged at the bottom of the lamp holder, and the upper ends of the plurality of lamp core tubes are communicated with the lamp holder.

As a further technical scheme of the quartz glass burner for gas melting continuous drawing, the outlet end faces of the bottoms of the plurality of lamp core tubes are positioned in the lamp shade.

Compared with the prior art, the quartz glass burner for gas melting continuous drawing provided by the utility model has the following beneficial effects:

1. the blanking pipe is arranged beside the hydrogen pipe, so that the quartz powder slides to the center of the molten pool along the inner surface of the quartz burner cavity, only one blanking central point is generated in melting, thus no pits are generated, and the quality of the quartz glass is improved.

2. The bottom end of the hydrogen tube is provided with a bend angle of 30-150 degrees, the opening of the bend angle faces the inner wall of the lampshade, the hydrogen can blow away quartz powder with larger force after coming out from the lower end of the hydrogen tube, the quartz powder can be discharged in a dispersing way, not only can the quartz glass burner burn more efficiently to achieve the effect of energy saving, but also the quartz powder can be melted more clearly, and the internal quality is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only examples of the embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a conventional quartz glass ingot preparation process;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of FIG. 2;

FIG. 4 is a schematic sectional view of A-A in FIG. 3.

Reference numerals: 1-lampshade, 11-first step, 12-second step, 2-lamp holder, 21-lamp core tube, 3-oxygen tube, 4-hydrogen tube, 41-bend angle and 5-discharge tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following describes the embodiments of the present invention in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the embodiments of the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be communication within two elements; the terms may be directly connected or indirectly connected through an intermediate, and specific meanings of the terms in the embodiments of the present invention will be understood to those skilled in the art in specific cases.

Referring to fig. 2 to 4, a quartz glass burner for gas fusion drawing according to an embodiment of the present invention includes a lamp housing 1, a lamp holder 2, an oxygen tube 3, a hydrogen tube 4, and a discharge tube 5, the lamp holder 2 is disposed in the lamp housing 1, wherein: the lampshade 1 is provided with a first step 11 and a second step 12, the first step 11 is positioned in the center of the lampshade 1, the second step 12 is positioned on the peripheral circumference of the first step 11, and the first step 11 is higher than the second step 12.

The top of the lamp holder 2 penetrates through the first step 11; an oxygen tube 3 is arranged on the outer circumference of the top of the lamp holder 2, and the oxygen tube 3 is communicated with the lamp holder 2.

In the embodiment of the present invention, the oxygen pipes 3 are a group, and the group of oxygen pipes 3 is symmetrical with the top of the lamp holder 2 as a central axis.

The hydrogen pipe 4 is arranged on the second ladder 12, the hydrogen pipe 4 is communicated with the lampshade 1, and the bottom end of the hydrogen pipe 4 extends into the lampshade 1.

In the embodiment of the present invention, the bottom end of the hydrogen tube 4 is provided with a bend 41 of 30-150 °, and the opening of the bend 41 faces the inner wall of the lampshade 1. The hydrogen tubes 4 are in a group, and the group of hydrogen tubes 4 is symmetrical by taking the top of the lamp holder 2 as a central axis.

The blanking pipe 5 is arranged on the outer edge of the second step 12 and close to the hydrogen pipe 4, the blanking pipe 5 is communicated with the lampshade 1, the bottom end of the blanking pipe 5 extends into the lampshade 1, and the bottom of the blanking pipe 5 extending into the lampshade 1 is tightly attached to the inner wall of the lampshade 1.

In the embodiment of the utility model, the bottom of the lamp holder 2 is provided with a plurality of lamp core tubes 21, and the upper ends of the plurality of lamp core tubes 21 are communicated with the lamp holder 2.

As a further technical scheme of the quartz glass burner for gas melting continuous drawing, the outlet end faces of the bottoms of the plurality of lamp core tubes 21 are positioned in the lamp shade 1.

When the quartz glass burner for gas smelting continuous drawing in the embodiment is used, quartz powder slides to the center of a molten pool along the inner surface of the cavity of the burner, so that only one blanking central point is generated during smelting; meanwhile, after the hydrogen comes out from the bend angle 41, the quartz powder is blown away, so that the quartz powder is dispersed and fed, the combustion is more efficient, the energy-saving effect is achieved, and the melting of the quartz powder is clearer.

While there has been shown and described what are considered to be preferred embodiments of the utility model, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a gas melts even draws uses quartz glass combustor, includes lamp shade, lamp stand, oxygen hose, hydrogen pipe and unloading pipe, and the lamp stand sets up in the lamp shade its characterized in that: the lampshade is provided with a first step and a second step, the first step is positioned in the center of the lampshade, the second step is positioned on the peripheral circumference of the first step, and the first step is higher than the second step; the top of the lamp holder penetrates through the first ladder; the hydrogen pipe is arranged on the second ladder, the hydrogen pipe is communicated with the lampshade, and the bottom end of the hydrogen pipe extends into the lampshade; the blanking tube is arranged on the outer edge of the second step, the blanking tube is communicated with the lampshade, the bottom end of the blanking tube extends into the lampshade, and the bottom of the blanking tube extending into the lampshade is tightly attached to the inner wall of the lampshade.

2. A quartz glass burner for gas fusion continuous drawing according to claim 1, characterized in that: the bottom end of the hydrogen pipe is provided with a bend angle of 30-150 degrees, and the opening of the bend angle faces the inner wall of the lampshade.

3. A quartz glass burner for gas fusion continuous drawing according to claim 2, characterized in that: the hydrogen pipes are in a group, and the group of hydrogen pipes is symmetrical by taking the top of the lamp holder as a central axis.

4. A quartz glass burner for gas fusion continuous drawing according to claim 3, characterized in that: the oxygen hose sets up on the circumference of lamp stand top, the oxygen hose with the lamp stand intercommunication.

5. The quartz glass burner for gas fusion continuous drawing according to claim 4, wherein: the oxygen pipes are in a group, and the group of oxygen pipes is symmetrical by taking the top of the lamp holder as a central axis.

6. A quartz glass burner for gas fusion drawing according to any one of claims 3 or 5, characterized in that: the lamp holder bottom is equipped with a plurality of wick pipe, a plurality of wick pipe upper end with the lamp holder intercommunication.

7. The quartz glass burner for gas fusion continuous drawing according to claim 6, wherein: the end faces of the outlets at the bottoms of the plurality of lamp core tubes are positioned in the lamp shade.