阅读说明：本技术 一种石英锭生产装置及掺杂方法 (Quartz ingot production device and doping method ) 是由 江志和 谷巨明 秦卫光 张铁 王帅 刘念宗 于 2021-09-22 设计创作，主要内容包括：本申请提供了一种石英锭生产装置及掺杂方法,包括：封闭的掺杂剂容器,所述掺杂剂容器至少为一个,用于盛装石英掺杂元素配置成的溶液；气体输入管,其一端与所述掺杂剂容器连通,另一端设有洁净压缩空气入口；所述气体输入管上设有气体流量控制阀用于控制洁净压缩空气进入掺杂剂容器量,进而调整掺杂剂容器的掺杂剂流出量；掺杂剂输出管,一端与所述掺杂剂容器连通,另一端位于竖直设置的基础石英管的一侧；下料管,用于石英粉料的下料,其出口与所述掺杂剂输出管对齐设置；火焰产生装置,设置在所述掺杂剂输出管的输出端,将掺杂剂和石英粉料热熔后沉淀在所述基础石英管的外壁。操作过程容易控制、掺杂均匀、原料不易受到污染。(The application provides a quartz ingot production device and a doping method, which comprise the following steps: the device comprises a closed dopant container, at least one dopant container and a control device, wherein the dopant container is used for containing a solution prepared by quartz doping elements; one end of the gas input pipe is communicated with the dopant container, and the other end of the gas input pipe is provided with a clean compressed air inlet; the gas input pipe is provided with a gas flow control valve for controlling the amount of clean compressed air entering the dopant container so as to adjust the dopant outflow amount of the dopant container; one end of the dopant output pipe is communicated with the dopant container, and the other end of the dopant output pipe is positioned on one side of the vertically arranged basic quartz pipe; the discharging pipe is used for discharging quartz powder, and an outlet of the discharging pipe is aligned with the dopant output pipe; and the flame generating device is arranged at the output end of the dopant output pipe and used for depositing the dopant and the quartz powder on the outer wall of the basic quartz pipe after hot melting. The operation process is easy to control, the doping is uniform, and the raw materials are not easy to be polluted.)

1. A quartz ingot production apparatus, comprising:

the device comprises a closed dopant container (1), wherein at least one dopant container (1) is used for containing a solution prepared from quartz doping elements;

a gas input pipe (2), one end of which is communicated with the dopant container (1), and the other end of which is provided with a clean compressed air inlet (21); the gas input pipe (2) is provided with a gas flow control valve (22) for controlling the amount of clean compressed air entering the dopant container (1) and further adjusting the dopant outflow amount of the dopant container (1);

one end of the dopant output pipe (3) is communicated with the dopant container (1), and the other end of the dopant output pipe is positioned on one side of the vertically arranged basic quartz pipe (6);

the discharging pipe (4) is used for discharging quartz powder, and an outlet of the discharging pipe is aligned with the dopant output pipe (3);

and the flame generating device (5) is arranged at the output end of the dopant output pipe (3) and is used for depositing the dopant and the quartz powder on the outer wall of the basic quartz pipe (5) after hot melting.

2. A quartz ingot producing apparatus as defined in claim 1,

the flame generating device (5) is positioned on one side of the dopant output pipe (3) relatively far away from the basic quartz pipe (6); the device comprises an ion head (51), wherein a flame jet port (52) is arranged at one end of the ion head (51) relatively close to a dopant output pipe (3), and a compressed air inlet (53) is arranged at one end of the ion head (51) relatively far away from the dopant output pipe (3); the ion head (51) is used for ejecting flame from the flame ejection port (52) after air is electrified.

3. A quartz ingot production apparatus according to claim 1, wherein the gas inlet pipe (2) is detachably connected to the dopant container (1), and the dopant outlet pipe (3) is detachably connected to the dopant container (1).

4. A quartz ingot production apparatus as set forth in claim 1, wherein the dopant container (1) is plural, each dopant container (1) is connected to a gas feed pipe (2), and the dopant output pipes (3) are respectively communicated with the plural dopant containers (101).

5. A quartz ingot production apparatus as set forth in claim 1, further comprising a cleaning device (7) for cleaning the dopant output tube (3) from bottom to bottom, the cleaning device (7) comprising a cleaning brush (71); the cleaning brush (71) is sequentially provided with a brush head part (711), a drying part (712) and a drying part (713) from the bottom end along the length direction of the cleaning brush; a cleaning cavity (72) is arranged in the middle of the cleaning brush (71), and a water spray hole (721) is formed in the side wall of the bottom of the cleaning cavity (72); a drying cavity (73) is further arranged in the cleaning brush (71), the cleaning brush (71) is arranged around the cleaning cavity (71), and an air injection hole (731) is formed in the side wall of the cleaning brush (71) corresponding to the drying part (713); the wiping part (712) is formed by absorbent cotton fixedly sleeved outside the cleaning brush (71).

6. A quartz ingot production device as set forth in claim 5, characterized in that an end cap (74) is hermetically connected to an end of the cleaning brush (71), and a cleaning water pipe (75) communicating with the cleaning chamber (72) is connected to a middle portion of the end cap (74); the end cover (74) is also connected with a drying air pipe (76) communicated with the drying cavity (73).

7. A quartz ingot production device as set forth in claim 5, wherein the washing brush (71) is rotatably connected to the end cap (74); the cleaning device (7) further comprises a first driving mechanism for driving the cleaning brush (71) to rotate and a second driving mechanism for driving the end cover (74) and the cleaning brush (71) connected with the end cover to move along the length direction of the cleaning brush (71).

8. The quartz ingot doping apparatus of claim 8, wherein the first drive mechanism comprises:

a first motor (771);

a driving wheel (772) connected with an output shaft of the first motor (771);

the belt (773) is sleeved with the driving wheel (772);

the outer wall of the belt pulley (774) is sleeved with the belt (773), and the inner wall of the belt pulley is sleeved with the outer wall of the cleaning device (7);

the first motor (771), the driving wheel (772), the belt (773) and the belt pulley (774) are supported and positioned by the supporting component;

the first motor (771) is started to drive the driving wheel (772) to rotate, and the driving wheel (772) drives the belt pulley (774) through the belt (773) so as to drive the whole cleaning device (7) to rotate.

9. The quartz ingot production apparatus as set forth in claim 7 or 8, wherein the second drive mechanism comprises:

a second motor (781);

a sleeve (782) fixedly connected with an output shaft of the second motor (782);

one end of the screw rod (783) extends into the sleeve (782) and is in threaded sleeve joint with the sleeve (782), and the other end of the screw rod is rotatably clamped with the end cover (783);

when the second motor (781) is started, the sleeve (782) is driven to rotate, and the screw rod (783) moves up and down to push the end cover (74) to move up and down.

10. A quartz ingot doping method comprising the quartz ingot production apparatus as set forth in any one of claims 1 to 9, characterized by comprising the steps of:

preparing a doping element into a solution, and placing the solution in a doping agent container;

and opening the gas flow control valve, enabling clean compressed air to enter the dopant container through the gas input pipe to push the dopant to flow into the dopant output pipe, and controlling the doping concentration by adjusting the gas flow control valve.

Technical Field

The application belongs to the field of doped quartz tube and rod production and manufacturing, and particularly relates to a natural quartz ingot production device and a doping method.

Background

At present, the doping mode of the quartz product is as follows: firstly, preparing a doping agent into a solution with a corresponding volume, then spraying the solution on the surface of the quartz powder material, fully stirring the solution by stirring equipment to enable the solution to be wrapped on the surface of the quartz powder material, then drying the quartz powder material wrapped with the doping agent, and finally dissolving the doped quartz powder material into a quartz ingot.

The doping method has the problems that the powder doping process is not easy to control, the phenomenon of uneven doping is easy to occur, and impurities are introduced in the stirring, drying and cooling processes, so that the raw materials are polluted.

Content of application

In view of the above-mentioned drawbacks and deficiencies of the prior art, the present application is directed to a quartz ingot production apparatus and a doping method.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, a quartz ingot production apparatus includes: the device comprises a closed dopant container, at least one dopant container and a control device, wherein the dopant container is used for containing a solution prepared by quartz doping elements; one end of the gas input pipe is communicated with the dopant container, and the other end of the gas input pipe is provided with a clean compressed air inlet; the gas input pipe is provided with a gas flow control valve for controlling the amount of clean compressed air entering the dopant container so as to adjust the dopant outflow amount of the dopant container; one end of the dopant output pipe is communicated with the dopant container, and the other end of the dopant output pipe is positioned on one side of the vertically arranged basic quartz pipe; the discharging pipe is used for discharging quartz powder, and an outlet of the discharging pipe is aligned with the dopant output pipe; and the flame generating device is arranged at the output end of the dopant output pipe and used for depositing the dopant and the quartz powder on the outer wall of the basic quartz pipe after hot melting.

According to the technical scheme provided by the embodiment of the application, the flame generating device is positioned on one side of the dopant output pipe, which is relatively far away from the basic quartz pipe; the ion head is provided with a flame jet orifice at one end relatively close to the dopant output pipe and a compressed air inlet at one end relatively far away from the dopant output pipe; the ion head is used for ejecting the flame from the flame ejection opening after the air is electrified.

According to the technical scheme that this application embodiment provided, the gas input pipe with dopant container can dismantle the connection, dopant output tube with dopant container can dismantle the connection.

According to the technical scheme provided by the embodiment of the application, the number of the dopant containers is multiple, each dopant container is connected with one gas input pipe, and the dopant output pipes are respectively communicated with the plurality of dopant containers.

According to the technical scheme provided by the embodiment of the application, the device further comprises a cleaning device for cleaning the dopant output pipe from bottom to bottom, wherein the cleaning device comprises a cleaning brush; the cleaning brush is sequentially provided with a brush head part, a wiping part and a drying part from the bottom end along the length direction of the cleaning brush; a cleaning cavity is arranged in the middle of the cleaning brush, and a water spray hole is formed in the side wall of the bottom of the cleaning cavity; a drying cavity is further arranged in the cleaning brush and surrounds the cleaning cavity, and an air jet hole is formed in the side wall of the cleaning brush corresponding to the drying part; the wiping part is formed by absorbent cotton fixedly sleeved outside the cleaning brush.

According to the technical scheme provided by the embodiment of the application, the end part of the cleaning brush is hermetically connected with an end cover, and the middle part of the end cover is connected with a cleaning water pipe communicated with the cleaning cavity; the end cover is also connected with a drying air pipe communicated with the drying cavity.

According to the technical scheme provided by the embodiment of the application, the cleaning brush is rotatably connected with the end cover; the cleaning device further comprises a first driving mechanism used for driving the cleaning brush to rotate, and a second driving mechanism used for driving the end cover and the cleaning brush connected with the end cover to move along the length direction of the cleaning brush.

According to the technical scheme provided by the embodiment of the application, the first driving mechanism comprises: a first motor; the driving wheel is connected with an output shaft of the first motor; the belt is sleeved with the driving wheel; the outer wall of the belt pulley is sleeved with the belt, and the inner wall of the belt pulley is sleeved with the outer wall of the cleaning device; the first motor, the driving wheel, the belt and the belt pulley are supported and positioned by the supporting component; the first motor is started to drive the driving wheel to rotate, and the driving wheel drives the belt pulley (774) through the belt so as to drive the whole cleaning device to rotate.

According to the technical scheme provided by the embodiment of the application, the second driving mechanism comprises: a second motor; the sleeve is fixedly connected with the output shaft of the second motor; one end of the screw rod extends into the sleeve and is in threaded sleeve joint with the sleeve, and the other end of the screw rod is rotatably clamped with the end cover; when the second motor is started, the sleeve is driven to rotate, and the screw rod moves up and down to further push the end cover to move up and down.

In a second aspect, a method for doping a quartz ingot comprises the quartz ingot production device, and is characterized by comprising the following steps: preparing a doping element into a solution, and placing the solution in a doping agent container; and opening the gas flow control valve, enabling clean compressed air to enter the dopant container through the gas input pipe to push the dopant to flow into the dopant output pipe, and controlling the doping concentration by adjusting the gas flow control valve.

The application has the following beneficial effects:

the application provides a quartz ingot apparatus for producing, compare with current stirring stoving mixed mode, put into the dopant container through the dopant solution who will dispose, and through letting in clean compressed air at the dopant container, promote the dopant through dopant output tube output, and produce the device through overall arrangement flame, dopant output tube, quartz powder unloading pipe, the position relation of basis quartz tube, make compressed air produce flame after the ionization of ionic head will just will be by the dopant that dopant output tube flows out, form the quartz ingot on the quartz tube stick by the quartz powder one deck deposit of quartz powder unloading pipe whereabouts, the homogeneity of doping has been improved, the raw materials is difficult to receive the pollution, the size that doping concentration can be controlled through the gas flow control valve of clean compressed air, it is convenient and fast to control.

Compared with the existing stirring, drying and doping mode, the quartz ingot doping method has the advantages that the mode of melting the dopant and quartz powder by plasma flame is adopted, the concentration of the dopant is adjusted by adjusting the flow of compressed air, the control is easy, raw materials are not easily polluted, and the cost in the preparation process of the dopant is reduced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIGS. 1 and 2 are schematic diagrams of doping apparatus structures according to the present application;

FIGS. 3 and 4 are schematic views of a portion of a dopant delivery tube according to the present application;

FIG. 5 is a schematic view of a cleaning device according to the present application;

FIG. 6 is a schematic cross-sectional view of a second cleaning segment according to the present application;

FIG. 7 is a schematic cross-sectional view of a first cleaning segment according to the present application.

Description of reference numerals:

1. a dopant container;

2. a gas output pipe; 21. a clean compressed air inlet; 22. a gas flow control valve;

3. a dopant output tube; 31. a one-way valve; 32. a flow meter;

4. a discharging pipe;

5. a flame generating device; 51. an ion head; 52. a flame jet; 53. a compressed air inlet; 54. an inductor coil;

6. a base quartz tube; 61. doping quartz;

7. a cleaning device;

71. cleaning brushes; 711. a brush head portion; 712. a wiping section; 713. a drying section;

72. a cleaning chamber; 721. a water spray hole;

73. a drying cavity; 731. a gas injection hole;

74. an end cap; 75. cleaning the water pipe; 76. drying the air pipe;

771. a first motor; 772. a driving wheel; 773. a belt; 774. a belt pulley;

781. a second motor; 782. a sleeve; 783. a screw.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are illustrative of the relevant application and are not limiting of the application. It should be noted that, for the convenience of description, only the portions relevant to the application are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

A quartz ingot production apparatus, comprising: the device comprises a closed dopant container 1, wherein at least one dopant container 1 is used for containing a solution prepared from quartz doping elements; a gas input pipe 2, one end of which is communicated with the dopant container 1, and the other end of which is provided with a clean compressed air inlet 21; the gas input pipe 2 is provided with a gas flow control valve 22 for controlling the amount of clean compressed air entering the dopant container 1, and further adjusting the dopant outflow amount of the dopant container 1; one end of the dopant output pipe 3 is communicated with the dopant container 1, and the other end is positioned at one side of the vertically arranged basic quartz pipe 6; the discharging pipe 4 is used for discharging quartz powder, and the outlet of the discharging pipe 4 is aligned with the dopant output pipe 3; and the flame generating device 5 is arranged at the output end of the dopant output pipe 3 and used for depositing the dopant and the quartz powder on the outer wall of the basic quartz pipe 5 after hot melting.

Specifically, referring to fig. 1 and 2, the required doping elements are prepared into a solution, and the solution is stored in a dopant container 1 for standby. The dopant container 1 is one or more, and different doping elements are conveniently doped simultaneously or respectively. The gas input pipe 2 and the dopant output pipe 3 are inserted on the dopant container, so that the dopant container is sealed, clean compressed air enters the dopant container filled with doping elements from the clean compressed air inlet 21, the doping process is not easy to be polluted, the entering amount of the clean compressed air is controlled through the gas flow control valve 22, and the outflow amount of the dopant container can be further controlled. The basic quartz tube is axially rotatable, and a quartz ingot is deposited on the outer wall of the basic quartz tube 5 and gradually becomes larger along the radial direction to form the quartz ingot. This application is through overall arrangement flame production device, the dopant output tube, quartz powder unloading pipe, the position relation of basis quartz capsule, make compressed air produce the dopant that flame just will flow out by the dopant output tube through flame production device, quartz powder one deck deposit by quartz powder unloading pipe whereabouts forms the quartz ingot on the basis quartz capsule, the homogeneity of doping has been improved, because the doping process of this device is not the stirring completion, the raw materials is difficult to receive the pollution, the size that doping concentration can be controlled through clean compressed air's gas flow control valve, it is convenient to control.

It should be noted here that the gas inlet pipe 2 and the dopant outlet pipe 3 are shown below the dopant container 1, and the gas inlet pipe 2 and the dopant outlet pipe 3 are both above the dopant container 1 during actual use. The gas inlet pipe 2 and the dopant outlet pipe 3 may be both located on one side of the dopant container 1, or on different sides of the dopant container 1.

Further, the flame generating device 5 is positioned on one side of the dopant output pipe 3, which is relatively far away from the basic quartz pipe 6; the device comprises an ion head 51, wherein one end of the ion head 51, which is relatively close to a dopant output tube 3, is provided with a flame jet 52, and one end, which is relatively far away from the dopant output tube 3, is provided with a compressed air inlet 53; the ion head 51 is used for ejecting the flame from the flame ejection port 52 after passing the air through the electricity.

Specifically, the inductance coil 54 is wound on the ion head 51, and the inductance coil 54 is used for electrifying the ion head to ionize compressed air and generate flame, so that the ion head is safe, simple, convenient and effective.

Further, the gas input pipe 2 is detachably connected with the dopant container 1, and the dopant output pipe 3 is detachably connected with the dopant container 1.

Specifically, gas input pipe 2, dopant output tube 3 all can be dismantled with dopant container 1 and be connected, conveniently take off gas input pipe 2 and dopant output tube 3, and dopant container 1 dismantles simultaneously and can take off the washing after taking off, and it is convenient simple to wash. Meanwhile, the doping agent container 1 filled with the doping elements is directly installed after being taken down, so that the working time is saved, and the working efficiency is improved.

Furthermore, there are a plurality of dopant containers 1, each dopant container 1 is connected to a gas input pipe 2, and the dopant output pipes 3 are respectively communicated with the plurality of dopant containers 101.

Specifically, referring to fig. 3 and 4, multiple dopant containers facilitate simultaneous doping of different dopant elements.

A one-way valve 31 is arranged on a pipeline communicated with each dopant container 1 and the dopant output pipe 3. The doping process of the dopant container can be directly controlled by controlling the one-way valve 31, for example, only one dopant container is allowed to be communicated with the dopant output pipe, any two or three dopant containers are allowed to be simultaneously communicated with the dopant output pipe, or different dopant containers are opened in the generation process of different quartz ingots, and the operation is simple and convenient.

And a flow meter 32 is also arranged on a pipeline communicated with each dopant container 1 and the dopant output pipe 3, so that the output quantity of the dopant is counted, and the doping concentration is accurately mastered.

Further, the device also comprises a cleaning device 7 for cleaning the dopant output pipe 3 from bottom to bottom, wherein the cleaning device 7 comprises a cleaning brush 71; the cleaning brush 71 is provided with a brush head part 711, a drying part 712 and a drying part 713 in sequence from the bottom end along the length direction; a cleaning cavity 72 is arranged in the middle of the cleaning brush 71, and a water spraying hole 721 is formed in the side wall of the bottom of the cleaning cavity 72; a drying cavity 73 is further arranged in the cleaning brush 71 and surrounds the cleaning cavity 71, and an air injection hole 731 is arranged on the side wall of the cleaning brush 71 corresponding to the drying part 713; the wiping part 712 is formed of absorbent cotton fixedly fitted outside the washing brush 71.

It can be understood that, when the dopant output pipe is communicated with a plurality of dopant containers, the types of doping elements contained in the common dopant containers are fixed, so that parts communicated with the dopant containers do not need to be cleaned, the main pipeline is mixed with a plurality of doping elements, and in the new quartz ingot generation process, the elements left in the main pipeline can influence the doping concentration of the quartz ingot required to be generated, so that only the merged main pipeline part needs to be cleaned.

Referring to fig. 5-7, the cleaning brush of the present application is provided with a brush head portion 711, a wiping portion 712 and a drying portion 713 for performing all-directional cleaning of water-scrubbing drying and drying on the dopant delivery tube 3. The water spraying holes 721 spray water to the auxiliary brush head part 711 to brush the pipe wall, the wiping part 712 wipes the water drops on the pipe wall of the dopant output pipe completely, the drying gas flows out of the gas spraying holes 731, and the auxiliary drying part 713 dries the dopant output pipe, so that the cleaning efficiency is improved, and the dopant output pipe can be directly put into use after drying. The cleaning device is used after being cleaned, so that the pollution probability in the doping process is reduced, and the product quality is improved.

Further, an end cover 74 is hermetically connected to an end of the cleaning brush 71, and a cleaning water pipe 75 communicated with the cleaning cavity 72 is connected to the middle of the end cover 74; the end cover 74 is also connected with a drying air pipe 76 communicated with the drying cavity 73.

Specifically, the washing chamber 72 communicates with the washing water pipe 75, and water flows from the washing water pipe 75 into the washing chamber 72 and then flows out through the water spraying holes 721. The drying air pipe 76 is communicated with the drying cavity 73, and drying air flows from the drying air pipe 76.

Further, the washing brush 71 is rotatably connected with the end cover 74; the cleaning device 7 further includes a first driving mechanism for driving the cleaning brush 71 to rotate, and a second driving mechanism for driving the end cap 74 and the cleaning brush 71 connected thereto to move in the length direction of the cleaning brush 71.

Specifically, the cleaning brush 71 and the cleaning device 7 can be detachably connected, and the cleaning device 71 according to the present application extends into the main pipeline part of the dopant output tube and is detachably connected with the main pipeline part. After the cleaning brush 71 is moved downward from the top to extend out of the dopant output tube, the cleaning brush 71 can be partially detached.

The cleaning brush 71 is rotatably connected with the end cover 74, and the end cover 74 is kept stationary during the rotation of the cleaning brush 71, so that the cleaning water pipe 75 and the drying air pipe 76 are not affected.

Under the drive of the first driving mechanism and the second driving mechanism, the cleaning brush rotates and moves downwards at the same time, the dopant output pipe 3 is cleaned, the cleaning effect is good and convenient, after the cleaning is completed, the cleaning brush 71 is completely extended out from the lower part of the dopant output pipe 3, the cleaning brush is separated and taken down, and the rest part of the cleaning brush is taken down from the upper part of the dopant output pipe, so that the operation is simple and convenient.

Further, the first driving mechanism includes: a first motor 771; a driving wheel 772 connected with an output shaft of the first motor 771; a belt 773 sleeved with the driving wheel 772; a belt pulley 774, the outer wall of which is sleeved with the belt 773, and the inner wall of which is sleeved with the outer wall of the cleaning device 7; the first motor 771, the driving wheel 772, the belt 773 and the belt pulley 774 are supported and positioned by the supporting component; the first motor 771 is started to drive the driving wheel 772 to rotate, and the driving wheel 772 drives the belt pulley 774 through the belt 773 to drive the whole cleaning device 7 to rotate.

Specifically, belt pulley 774 is annular structure, its inner wall with belt cleaning device 7's outer wall contact is connected, and belt pulley 774 outer wall cover is equipped with belt 773, belt 773 still overlaps and establishes on action wheel 772, starts when first motor 771, and the output shaft rotates and drives action wheel 771 and then drive belt pulley 774 and rotate, relies on static friction to drive belt cleaning device 7 and rotates, realizes belt cleaning device 7's rotation action, does not need manual cleanness, labour saving and time saving, washs cleaner.

The supporting component is a supporting platform, and is used for fixing the first motor 771, the driving wheel 772 and the belt pulley 774 of the first driving mechanism.

Further, the second driving mechanism includes: a second motor 781; a sleeve 782 fixedly connected with an output shaft of the second motor 782; one end of the screw 783 extends into the sleeve 782 and is in threaded sleeve joint with the sleeve 782, and the other end of the screw is rotatably clamped with the end cover 783; when the second motor 781 is started, the sleeve 782 is driven to rotate, and the screw 783 moves up and down to push the end cover 74 to move up and down.

Specifically, the output shaft rotates and drives sleeve 782 and rotate after electric 781 of second starts, sleeve 782 is equipped with the internal thread, screw rod 783 is equipped with the external screw thread that connects with the internal thread, rotates the in-process at sleeve 782, and screw rod 783 realizes reciprocating the action, and then drives the end cover and reciprocates. Since the screw 783 is rotatably engaged with the end cap 74, rotation of the screw 783 does not rotate the end cap 74. The lifting and the descending of the screw 783 drive the cleaning device to move up and down to realize the cleaning work from top to bottom. Manual control is not needed, and time and labor are saved.

Example two

A method for doping a quartz ingot, comprising the quartz ingot production apparatus as described above, comprising the steps of: preparing a doping element into a solution, and placing the solution in a doping agent container; and opening the gas flow control valve, enabling clean compressed air to enter the dopant container through the gas input pipe to push the dopant to flow into the dopant output pipe, and controlling the doping concentration by adjusting the gas flow control valve.

Specifically, the dopant flows out from the dopant output pipe. Meanwhile, the blanking amount of a quartz powder material bin is set, so that the quartz powder material flows into a blanking pipe for continuous blanking; the flame generating device generates plasma flame; the base quartz tube is rotated and the plasma flame deposits the dopant and the quartz powder layer by layer onto the base quartz tube to form a quartz ingot of the target diameter.

Compared with the existing stirring, drying and doping modes, the method adopts the mode of melting the dopant and quartz powder by plasma flame, adjusts the flow of compressed air to adjust the concentration of the dopant, is easy to control, ensures that raw materials are not easy to be unmanned, and reduces the cost in the preparation process of the dopant.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the application referred to in the present application is not limited to the embodiments with a particular combination of the above-mentioned features, but also encompasses other embodiments with any combination of the above-mentioned features or their equivalents without departing from the scope of the application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.