CN210457932U

CN210457932U - Even reinforced continuous melting stove of quartz capsule for preparation semiconductor and photovoltaic

Info

Publication number: CN210457932U
Application number: CN201920952629.4U
Authority: CN
Inventors: 张尧; 濮阳坤; 陶明顿
Original assignee: FUDONG LIGHTING LLC
Current assignee: FUDONG LIGHTING LLC
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-05-05
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses an even feeding continuous melting furnace for preparing a semiconductor and a photovoltaic quartz tube, which relates to the technical field of quartz tube production, and comprises a furnace body, wherein a furnace cover is arranged on the furnace body, the furnace cover comprises a big cover, an exhaust port is arranged on the big cover, a small cover is rotatably connected on the big cover, a feeding hopper is eccentrically and fixedly arranged on the small cover, the lower end of the feeding hopper is connected with a discharging tube, and at least two material distributing tubes are arranged at the lower part of the discharging tube; the small cover is connected with a power mechanism; be equipped with gaseous jetting subassembly in the crucible, gaseous jetting subassembly includes air feeder, air supply pipe and gas blow pipe, and air feeder's gas outlet is connected with the air supply pipe, and the other end of air supply pipe is rotated with the gas blow pipe through vertical rotary joint and is connected, gas blow pipe and little lid fixed connection, and the end of giving vent to anger of gas blow pipe is equipped with the gas distributor. The quartz sand is uniformly fed under the dual actions of rotation of the feeding hopper and gas injection, the prepared quartz tube has no bubbles or gas lines, the forming quality of the quartz tube is improved, and the product percent of pass is improved.

Description

Even reinforced continuous melting stove of quartz capsule for preparation semiconductor and photovoltaic

Technical Field

The utility model belongs to the technical field of quartz capsule production technology and specifically relates to a preparation semiconductor and quartz capsule for photovoltaic's even reinforced smelting pot that links.

Background

The quartz glass tube is special industrial technical glass made of silicon dioxide, has a series of excellent physicochemical properties such as high temperature resistance, corrosion resistance, good thermal stability, good light transmittance, good electrical insulation and the like, and is widely applied to various fields such as electric light sources, semiconductors, optical communication, war industry, metallurgy, building materials, chemistry, machinery, electric power, environmental protection and the like.

The quality requirement of a semiconductor and a photovoltaic quartz tube is high, the uniformity of the wall of the quartz tube is high, no bubble gas line and no color line exist, in the existing quartz continuous melting tube drawing equipment, a material pile cover is easily formed in the feeding process, so that the quartz sand raw material of a continuous melting furnace is unevenly distributed, the sand grains are excessively piled, gas is easily wrapped by quartz fusion, gas lines and bubbles are formed, the pressure of the quartz liquid level in the furnace is uneven, the quartz material is discharged from the furnace and formed, and the quartz tube is deviated in wall and excessive in gas line. Therefore, the semiconductor and the quartz tube for photovoltaic produced by the existing equipment have higher rejection rate and high cost.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in providing an evenly reinforced to prior art not enough, improves quartz capsule shaping quality, improves the even reinforced even smelting pot of quartz capsule for preparation semiconductor and photovoltaic of product percent of pass.

The utility model aims to solve the technical problem and is realized by the following technical proposal, the utility model is a uniform feeding continuous melting furnace for preparing a quartz tube for semiconductors and photovoltaics, which comprises a furnace body, a furnace cover is arranged on the furnace body, a crucible is arranged in the furnace body, a heating device is arranged outside the crucible, a material platform is arranged at the bottom of the crucible, a forming outlet is arranged on the material platform, a former connected with a core bar is arranged at the forming outlet, and the utility model is characterized in that,

the furnace cover comprises a large cover fixedly connected with the furnace body, an exhaust port is formed in the large cover, a small cover is rotatably connected to the large cover, a feeding hopper is eccentrically and fixedly arranged on the small cover, a discharging pipe is connected to the lower end of the feeding hopper and extends into the crucible, and at least two distributing pipes which are uniformly distributed in the circumferential direction of the discharging pipe are arranged at the lower part of the discharging pipe in the crucible; the small cover is connected with a power mechanism for driving the small cover to rotate;

be equipped with gaseous jetting subassembly in the crucible, gaseous jetting subassembly includes air feeder, air supply pipe and gas blow pipe, air feeder's gas outlet and air supply pipe are connected, the other end of air supply pipe is passed through vertical rotary joint and is rotated with the gas blow pipe and be connected, vertical rotary joint sets up with the axis collineation mode of axis and tegillum, gas blow pipe and tegillum fixed connection, in the end of giving vent to anger of gas blow pipe stretches into the crucible, is equipped with the gas distributor at the end of giving vent to anger of gas blow pipe, the gas distributor is established between a plurality of branch material pipes.

The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above the even reinforced even melting furnace of quartz capsule for preparation semiconductor and photovoltaic: the small cover and the large cover are rotatably connected through a bearing.

The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above the even reinforced even melting furnace of quartz capsule for preparation semiconductor and photovoltaic: the air blowing pipe is arranged in the feeding hopper, the air blowing pipe is arranged in a mode that the axis is collinear with the axis of the feeding hopper, and the air distributor is arranged in the middle of the distributing pipes and is arranged at the same height as the discharging holes of the distributing pipes.

The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above the even reinforced even melting furnace of quartz capsule for preparation semiconductor and photovoltaic: the small cover is provided with an outer gear ring, the power mechanism comprises a gear matched with the outer gear ring, and the furnace body is provided with a motor which is connected with the gear and drives the gear to rotate.

The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, above the even reinforced even melting furnace of quartz capsule for preparation semiconductor and photovoltaic: the core rod is introduced into the crucible from the side wall of the furnace body.

Compared with the prior art, the beneficial effects of the utility model are that:

the high-purity quartz sand dispersedly flows out by arranging the material distributing pipes, the small cover is rotationally connected with the large cover by arranging the small cover, the small cover is driven to rotate by the power mechanism, the small cover is eccentrically provided with the material feeding hopper, the material discharging pipes of the material feeding hopper are provided with a plurality of material distributing pipes, and the high-purity quartz sand uniformly falls in the rotating process of the plurality of material distributing pipes; meanwhile, the gas supply equipment supplies gas to the gas blowing pipe through the gas supply pipe, and the gas is blown out from the gas distributor at the bottom end of the gas blowing pipe, so that the falling quartz sand is further uniformly dispersed, and uniform blanking of the quartz sand is realized; the quartz sand is uniformly dispersed and fully melted in the continuous melting furnace, and the drawn semiconductor and photovoltaic quartz tube has no gas line or bubble, so that the quartz liquid level pressure in the furnace is uniform due to uniformly dispersed feeding of the quartz sand, the defect of inclined wall of the quartz tube formed by drawing in the prior art is overcome, and the quartz material discharging forming quality is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure: 1. the furnace comprises a furnace body, 2 parts of a crucible, 3 parts of a large cover, 4 parts of a material platform, 5 parts of a forming device, 6 parts of a core rod, 7 parts of an exhaust port, 8 parts of a small cover, 9 parts of a feeding hopper, 10 parts of a material distributing pipe, 11 parts of an air blowing pipe, 12 parts of a vertical rotary joint, 13 parts of an air supply pipe, 14 parts of a bearing, 15 parts of a gear, 16 parts of a motor and 17 parts of an air distributor.

Detailed Description

The following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.

[ example 1 ]

Referring to fig. 1 and 2, an even feeding continuous melting furnace for preparing a quartz tube for semiconductors and photovoltaics comprises a furnace body 1, a furnace cover is arranged on the furnace body 1, a crucible 2 is arranged in the furnace body 1, a heating device is arranged outside the crucible 2, a material platform 4 is arranged at the bottom of the crucible 2, a forming outlet is arranged on the material platform 4, a former 5 connected with a core rod 6 is arranged at the forming outlet, the furnace cover comprises a big cover 3 fixedly connected with the furnace body 1, an exhaust port 7 is arranged on the big cover 3, the big cover 3 is rotatably connected with a small cover 8, the small cover 8 and the big cover 3 are rotatably connected through a bearing 14, a feeding hopper 9 is eccentrically and fixedly arranged on the small cover 8, the lower end of the feeding hopper 9 is connected with a discharging pipe, the discharging pipe extends into the crucible 2, four material distributing pipes 10 are uniformly distributed around the circumference of the blanking pipe at the lower part of the blanking pipe in the crucible 2; the small cover 8 is connected with a power mechanism for driving the small cover 8 to rotate; the small cover 8 is provided with an outer gear ring, the power mechanism comprises a gear 15 matched with the outer gear ring, the furnace body 1 is provided with a motor 16 which is connected with the gear 15 and drives the gear 15 to rotate, the furnace body 1 is provided with a motor 16 seat, and the motor 16 is fixedly arranged on the motor 16 seat;

a gas injection assembly is arranged in the crucible 2, the gas injection assembly comprises a gas supply device, a gas supply pipe 13 and a gas blowing pipe 11, a gas outlet of the gas supply device is connected with the gas supply pipe 13, the other end of the gas supply pipe 13 is rotatably connected with the gas blowing pipe 11 through a vertical rotary joint 12, the gas blowing pipe 11 is fixedly connected with a small cover 8 through a support frame or is fixedly connected with a feeding hopper 9 through the support frame, a gas outlet end of the gas blowing pipe 11 extends into the crucible 2, a gas distributor 17 is arranged at the gas outlet end of the gas blowing pipe 11, and the gas distributor 17 is arranged among a plurality of distributing pipes 10; the air blowing pipes 11 are arranged in the feeding hopper 9, the air blowing pipes 11 are arranged in a mode that the axes are collinear with the axis of the feeding hopper 9, and the air distributor 17 is arranged in the middle of the distributing pipes 10 and is arranged at the same height with the discharging holes of the distributing pipes 10;

the vertical rotary joint 12 is arranged with its axis collinear with the axis of the small lid 8.

The core rod 6 is introduced into the crucible 2 from the side wall of the furnace body 1.

The working principle is as follows:

starting a motor 16, wherein the motor 16 drives a gear 15 to rotate, the gear 15 is meshed with an outer gear ring of the small cover 8 to drive the small cover 8 to rotate, the small cover 8 drives the feeding hopper 9 and the air supply pipe 13 to rotate due to the fact that the feeding hopper 9 and the air supply pipe 13 are fixedly connected with the small cover 8, quartz sand raw materials are fed into the feeding hopper 9, the feeding hopper 9 is eccentrically arranged on the small cover 8, and in the rotating process of the feeding hopper 9, the quartz sand raw materials are dispersedly flowed out from the four material distributing pipes 10, and meanwhile, a spiral blanking track is formed in the furnace body 1; meanwhile, a control valve of a gas supply device is opened, protective gas such as nitrogen is introduced into the gas blowing pipe 11 through the gas supply pipe 13, the gas is blown out from a gas distributor 17 at the bottom of the gas blowing pipe 11, the gas blows quartz sand raw materials flowing out of the surrounding material distribution pipe 10, the quartz sand raw materials are uniformly blown away again, uniform blanking of the quartz sand is realized under the action of rotation, material distribution and blowing, a material pile cover formed by uneven blanking can be avoided, quartz sand grains are uniformly dispersed, the quartz sand enters the continuous melting furnace to be fully melted, and the pulled quartz pipe for semiconductors and photovoltaics has no gas lines and bubbles, and the quartz sand is uniformly dispersed and blanked, so that the quartz liquid level pressure in the furnace is uniform, the defect of partial wall of the quartz pipe formed by drawing in the prior art is overcome, and the quality of quartz material out of the furnace is improved.

Claims

1. The utility model provides a preparation semiconductor and quartz capsule for photovoltaic evenly reinforced smelting pot even, includes the furnace body, is equipped with the bell on the furnace body, is equipped with the crucible in the furnace body, and the crucible is equipped with heating device outward, and the crucible bottom is equipped with the material platform, is equipped with the shaping export on the material platform, and the shaping exit is equipped with the former that meets with the core bar, its characterized in that:

be equipped with gaseous jetting subassembly in the crucible, gaseous jetting subassembly includes air feeder, air supply pipe and gas blow pipe, air feeder's gas outlet and air supply pipe are connected, the other end of air supply pipe is passed through vertical rotary joint and is rotated with the gas blow pipe and be connected, vertical rotary joint sets up with the axis collineation's of axis and tegillum mode, gas blow pipe and tegillum fixed connection, in the end of giving vent to anger of gas blow pipe stretched into the crucible, the end of giving vent to anger at the gas blow pipe was equipped with the gas distributor, the gas distributor is established between a plurality of branch material pipes.

2. The homogeneous charge continuous melting furnace according to claim 1, wherein the quartz tube comprises: the small cover and the large cover are rotatably connected through a bearing.

3. The homogeneous charge continuous melting furnace according to claim 1, wherein the quartz tube comprises: the air blowing pipe is arranged in the feeding hopper, the air blowing pipe is arranged in a mode that the axis is collinear with the axis of the feeding hopper, and the air distributor is arranged in the middle of the distributing pipes and is arranged at the same height as the discharging holes of the distributing pipes.

4. The homogeneous charge continuous melting furnace according to claim 1, wherein the quartz tube comprises: the small cover is provided with an outer gear ring, the power mechanism comprises a gear matched with the outer gear ring, and the furnace body is provided with a motor which is connected with the gear and drives the gear to rotate.

5. The homogeneous charge continuous melting furnace according to claim 1, wherein the quartz tube comprises: the core rod is introduced into the crucible from the side wall of the furnace body.