阅读说明：本技术 一种适用于大口径喉口的复投装置及复投方法 (Re-throwing device and re-throwing method suitable for large-diameter laryngeal opening ) 是由 霍志强 张文霞 武志军 郭谦 钟旭 宋瑞强 景吉祥 李晓东 康学兵 高润飞 徐强 于 2019-11-15 设计创作，主要内容包括：本发明提供一种适用于大口径喉口的复投装置,包括复投筒、复投卡接装置、喉口卡接装置和提升装置,其中,提升装置与复投筒滑动连接,便于复投投料；复投卡接装置设于复投筒进料端,且复投卡接装置与喉口卡接装置接触配合,喉口卡接装置与隔离阀室可拆卸连接,便于复投筒卡接在隔离阀室上,进行复投投料。本发明的有益效果是具有喉口卡接装置,同时,在复投筒的进料端安装有复投卡接装置,通过复投卡接装置与喉口卡接装置相配合,喉口卡接装置与隔离阀室的顶端卡接,使得复投筒的进料端卡接在隔离阀室内,满足大尺寸复投筒复投要求,满足更大范围单晶直径的拉制要求。(The invention provides a re-feeding device suitable for a large-diameter throat, which comprises a re-feeding barrel, a re-feeding clamping device, a throat clamping device and a lifting device, wherein the lifting device is connected with the re-feeding barrel in a sliding manner, so that re-feeding is facilitated; the re-feeding clamping device is arranged at the feeding end of the re-feeding barrel and is in contact fit with the throat clamping device, the throat clamping device is detachably connected with the isolation valve chamber, and the re-feeding barrel is clamped on the isolation valve chamber conveniently to perform re-feeding. The throat clamping device is arranged at the feed end of the re-casting cylinder, and the re-casting clamping device is matched with the throat clamping device and clamped with the top end of the isolation valve chamber, so that the feed end of the re-casting cylinder is clamped in the isolation valve chamber, the re-casting requirement of the large-size re-casting cylinder is met, and the drawing requirement of a larger-range single crystal diameter is met.)

1. A device is thrown again suitable for heavy-calibre larynx which characterized in that: comprises a re-casting cylinder, a re-casting clamping device, a throat clamping device and a lifting device, wherein,

the lifting device is connected with the re-feeding cylinder in a sliding manner, so that re-feeding is facilitated;

the re-feeding clamping device is arranged at the feeding end of the re-feeding barrel and is in contact fit with the throat clamping device, the throat clamping device is detachably connected with the isolation valve chamber, and the re-feeding barrel is conveniently clamped on the isolation valve chamber to perform re-feeding.

2. The device of claim 1, wherein the device comprises: the throat clamping device comprises a clamping part and a supporting part, the supporting part is connected with the clamping part, and the supporting part is arranged on the inner side of the clamping part and is convenient for supporting the re-casting barrel; and

the clamping portion is provided with a positioning hole, so that the clamping portion is detachably connected with one end of the isolation valve chamber, which is connected with the auxiliary chamber.

3. The device of claim 2, wherein the device comprises: the quantity of supporting part is a plurality of, and the symmetry is located the inboard of joint portion.

4. A multiple-throw apparatus suitable for use in a large-bore laryngeal opening, as claimed in claim 2 or 3, wherein: the joint portion is the annular structure, including first joint portion and transition portion, first joint portion with the transition portion is connected, the opposite side of transition portion with the supporting part is connected.

5. The device of claim 4, wherein the device comprises: the first clamping portion and the transition portion are arranged in a ladder mode.

6. The device of claim 5, wherein the device comprises: the transition part and the supporting part are arranged in a ladder way.

7. The device of claim 6, wherein the device comprises: the shape of the support includes, but is not limited to, a sector, trapezoid, or rectangle.

8. A re-casting method of a re-casting device suitable for a large-diameter throat is applied, and is characterized in that: comprises the following steps of (a) carrying out,

unscrewing the auxiliary chamber, and arranging the re-throwing cylinder in the auxiliary chamber;

arranging a throat clamping device above the isolation valve chamber;

arranging the auxiliary chamber on the throat clamping device;

descending the re-casting barrel, and clamping the re-casting barrel with the throat clamping device through a re-casting clamping device, wherein the re-casting barrel is arranged on the throat clamping device;

continuously descending the re-feeding barrel, separating the lifting device from the re-feeding barrel, and performing re-feeding and feeding;

and after the re-feeding and feeding are finished, taking out the throat clamping device.

9. The re-casting method of claim 8 using a re-casting device suitable for a large-caliber laryngeal opening, comprising the following steps: the taking out of the throat clamping device after the feeding is finished comprises the following steps,

the lifting device is lifted to lift the re-throwing cylinder and the lifting device into the auxiliary chamber;

unscrewing the auxiliary chamber, and taking down the throat clamping device;

and taking down the re-casting cylinder to finish the re-casting.

10. The method for re-casting by using a re-casting device suitable for a large-caliber laryngeal opening according to claim 8 or 9, characterized in that: the throat clamping device is clamped with the isolation valve chamber through a positioning piece.

Technical Field

The invention belongs to the technical field of Czochralski single crystals, and particularly relates to a re-feeding device and a re-feeding method suitable for a large-diameter throat.

Background

In the conventional re-feeding device, raw materials are contained in a cylinder of a re-feeding cylinder, a flange structure is arranged in the middle of the re-feeding cylinder so as to ensure that a flange can be clamped on the upper edge of a water-cooling sleeve, and a lifting device can be hung in a crystal pulling furnace and is linked with the re-feeding cylinder to perform lifting motion so as to perform re-feeding and feeding.

When large-size single crystal is drawn, if the diameter of the drawn single crystal is larger than the inner diameter of the water cooling sleeve (taking the current furnace platform as an example, the diameter of the single crystal is 250mm at the maximum), the inner diameter of the water cooling sleeve cannot meet the requirement of single crystal drawing, the water cooling sleeve needs to be redesigned, the newly designed inner diameter of the water cooling sleeve is the same as the inner diameter of the furnace cover, and the re-casting cylinder cannot be clamped on the upper edge of the water cooling sleeve, so that the furnace platform.

Disclosure of Invention

In view of the above problems, the present invention provides a re-feeding device and a re-feeding method suitable for a large-diameter throat, and particularly suitable for re-feeding in a process of pulling a large-size single crystal, wherein the re-feeding device and the re-feeding method are provided with a throat clamping device and a re-feeding barrel, so as to meet the pulling requirement of the large-size single crystal, increase the feeding amount of the single barrel, and improve the working efficiency.

In order to solve the technical problems, the invention adopts the technical scheme that: a re-throwing device suitable for a large-caliber throat comprises a re-throwing barrel, a re-throwing clamping device, a throat clamping device and a lifting device, wherein,

the lifting device is connected with the re-feeding cylinder in a sliding manner, so that re-feeding is facilitated;

the re-feeding clamping device is arranged at the feeding end of the re-feeding barrel and is in contact fit with the throat clamping device, the throat clamping device is detachably connected with the isolation valve chamber, and the re-feeding barrel is clamped on the isolation valve chamber conveniently to perform re-feeding.

Furthermore, the throat clamping device comprises a clamping part and a supporting part, the supporting part is connected with the clamping part, and the supporting part is arranged on the inner side of the clamping part, so that the secondary casting barrel can be supported conveniently; and

the clamping portion is provided with a positioning hole, and the clamping portion is detachably connected with one end of the isolation valve chamber, which is connected with the auxiliary chamber.

Furthermore, the quantity of supporting part is a plurality of, and the inboard of joint portion is located to the symmetry.

Further, joint portion is the loop configuration, including first joint portion and transition portion, and first joint portion is connected with transition portion, and the opposite side and the supporting part of transition portion are connected.

Furthermore, first joint portion is the ladder setting with transition portion.

Furthermore, the transition part and the support part are arranged in a ladder way.

Further, the shape of the support portion includes, but is not limited to, a fan shape, a trapezoid shape, or a rectangular shape.

A re-casting method of re-casting device suitable for large-diameter throat comprises the following steps,

the auxiliary chamber is unscrewed, and the re-throwing cylinder is arranged in the auxiliary chamber;

arranging a throat clamping device above the isolation valve chamber;

arranging the auxiliary chamber on the laryngeal inlet clamping device;

a descending re-throwing cylinder is clamped with the throat clamping device through the re-throwing clamping device, and the re-throwing cylinder is arranged on the throat clamping device;

continuously descending the re-feeding barrel, separating the lifting device from the re-feeding barrel, and performing re-feeding and feeding;

and after the re-feeding and feeding are finished, taking out the throat clamping device.

Further, the taking out of the throat clamping device after the feeding is finished comprises the following steps,

the lifting device is lifted to lift the re-throwing cylinder and the lifting device into the auxiliary chamber;

unscrewing the auxiliary chamber, and taking down the throat clamping device;

and taking down the re-throwing cylinder to finish the re-throwing.

Furthermore, the throat clamping device is clamped with the isolation valve chamber through a positioning piece.

By adopting the technical scheme, the throat clamping device is provided, meanwhile, the re-casting clamping device is installed at the feeding end of the re-casting barrel, the re-casting clamping device is matched with the throat clamping device, and the throat clamping device is clamped with the top end of the isolation valve chamber, so that the feeding end of the re-casting barrel is clamped in the isolation valve chamber, the re-casting requirement of the large-size re-casting barrel is met, the drawing requirement of the single crystal diameter in a larger range is met, the feeding amount of the single barrel can be increased, the re-casting times are reduced, the workload of workers is reduced, the re-casting process flow during re-casting is simple, and the practicability is high.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a throat clamp according to an embodiment of the present invention;

fig. 3 is a sectional view a-a of fig. 2.

In the figure:

1. auxiliary chamber 2, throat clamping device 3 and isolation valve chamber

4. Water cooling jacket 5, lifting device 6, and re-throwing cylinder

7. Re-projection clamping device 20, first clamping part 21 and transition part

23. Supporting part

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Fig. 1 shows a schematic structural diagram of an embodiment of the present invention, specifically showing the structure and connection relationship of the embodiment, and the embodiment relates to a re-casting device and a re-casting method suitable for a large-diameter throat, which are used in the process of re-casting large-size single crystals, and the re-casting device is provided with a throat clamping device, and can clamp a large-size re-casting cylinder at the top end of an isolation valve chamber, so as to meet the requirement of pulling large-size single crystals.

A re-feeding device suitable for a large-diameter throat is used for re-feeding in the process of pulling a single crystal as shown in figure 1, and the re-feeding device is adopted for re-feeding; the re-feeding device suitable for the large-diameter throat comprises a re-feeding barrel 6, a re-feeding clamping device 7, a throat clamping device 2 and a lifting device 5, wherein the re-feeding barrel 6 is used for containing re-fed materials, the lifting device 5 is in sliding connection with the re-feeding barrel 6, re-feeding and feeding are facilitated, and re-feeding and feeding are carried out through mutual movement between the lifting device 5 and the re-feeding barrel 6; the re-feeding clamping device 7 is arranged at the feeding end of the re-feeding barrel 6, the re-feeding clamping device 7 is in contact fit with the throat clamping device 2, the throat clamping device 2 is detachably connected with the isolation valve chamber 3, and the re-feeding barrel 6 is conveniently clamped on the isolation valve chamber 3 to perform re-feeding. When the re-feeding is carried out, the throat clamping device 2 is installed on the isolation valve chamber 3, the re-feeding barrel 6 is in contact fit with the throat clamping device 2 through the re-feeding clamping device 7, the re-feeding barrel 6 is clamped on the isolation valve chamber 3, the lifting device 5 carries out descending action to carry out re-feeding, after the re-feeding is completed, the lifting device 5 ascends, the re-feeding barrel 6 is lifted into the auxiliary chamber 1 together, the re-feeding barrel 6 and the throat clamping device 2 are taken out, and the re-feeding is completed.

Specifically, the re-feeding cylinder 6 is of a cylindrical structure, the re-feeding cylinder 6 is provided with an upper opening and a lower opening, the lifting device 5 is conveniently installed on the re-feeding cylinder 6 in a sliding mode, and meanwhile, the raw materials are conveniently charged and discharged. The material of the re-feeding cylinder 6 is quartz, so that the influence of impurities on the quality of the single crystal caused by re-feeding is avoided.

The lifting device 5 is used to mount the entire re-feeding device in the sub-chamber 1, and lift and lower the device to re-feed the raw material. The lifting device 5 comprises a lifting rod, a material distributing device and a base, wherein one end of the lifting rod is fixedly connected with the material distributing device, the other end of the material distributing device is fixedly connected with the base, the diameter of the base is larger than that of the re-casting barrel 6, the lifting rod and the material distributing device are slidably arranged in the re-casting barrel 6, the base is positioned outside the re-casting barrel 6, the diameter of the base is larger than that of the re-casting barrel 6, when the re-casting barrel 6 is positioned in the auxiliary chamber 1 for re-casting, the re-casting barrel 6 is clamped on the base, and the base blocks raw materials in the re-casting barrel 6 to prevent the raw materials from falling; the section of the material distributing device is triangular, and the raw materials in the re-feeding cylinder 6 are dispersed and uniformly fed into the crucible; the lifting rod is of a rod-shaped structure, the lifting rod is used for hanging the re-feeding cylinder 6 filled with the raw materials in the auxiliary chamber 1 and descending, the re-feeding cylinder 6 is clamped on the throat clamping device 2 through the re-feeding clamping device 7, the lifting rod continues descending, the bottom end of the re-feeding cylinder 6 is separated from the base, and the raw materials are dispersed into the crucible along the material distributing device; after the re-feeding is completed, the lifting rod rises, after the base is contacted with the bottom end of the re-feeding cylinder 6, the re-feeding cylinder 6 is linked with the lifting rod and rises into the auxiliary chamber 1, and the re-feeding cylinder 6 and the throat clamping device 2 are taken out after the re-feeding is completed.

The re-casting clamping device 7 is arranged at the feeding end of the re-casting barrel 6, the re-casting clamping device 7 is of an annular structure and is fixedly connected with the re-casting barrel 6 through connecting pieces such as bolts and the like, or riveted, or clamped, or in other fixed connection modes, selection is carried out according to actual requirements, and no specific requirements are made here.

The re-casting clamping device 7 is fixedly arranged on the outer side wall of the feeding end of the re-casting barrel 6, the re-casting clamping device 7 has a certain width, the width is matched with the throat clamping device 2, the re-casting clamping device 7 is convenient to contact and match with the throat clamping device 2, the re-casting clamping device 7 is clamped on the throat clamping device 2, and then the re-casting barrel 6 is clamped on the isolation valve chamber 3, so that re-casting is convenient.

As shown in fig. 2 and 3, the throat clamping device 2 includes a clamping portion and a supporting portion 22, the supporting portion 22 is connected to the clamping portion, and the supporting portion 22 is disposed inside the clamping portion to support the re-casting barrel 6; and the clamping part is provided with a positioning hole, so that the clamping part can be detachably connected with one end of the isolation valve chamber 3 connected with the auxiliary chamber 1. The clamping part is detachably connected with the isolating valve chamber 3, so that the throat clamping device 2 is convenient to mount and dismount, and the use is convenient and quick. When the throat clamping device 2 is used, the clamping part is connected with the top end of the isolation valve chamber 3, the supporting part 22 is in contact fit with the re-casting clamping device 7 to support the re-casting barrel 6, so that the re-casting barrel 6 is clamped on the throat clamping device 2 to perform re-casting when re-casting.

The clamping portion is of an annular structure, the diameter of the clamping portion is matched with that of the top end of the isolation valve chamber 3, and the clamping portion is connected with the isolation valve chamber 3 conveniently. The clamping portion comprises a first clamping portion 20 and a transition portion 21, the first clamping portion 20 is connected with the transition portion 21, the other side of the transition portion 21 is connected with a supporting portion 22, the first clamping portion 20 and the transition portion 21 are arranged in a stepped mode, namely, the first clamping portion 20 and the transition portion 21 are both in an annular structure, a positioning hole is formed in the first clamping portion 20, and the first clamping portion 20 is connected with the top end of the isolation valve chamber 3; transition portion 21 is cyclic annular structure, and transition portion 21 and first joint portion 20 fixed connection, and this fixed connection mode can be through connecting piece fixed connection such as bolt, or the welding, or integrated into one piece, or other fixed connection modes, selects according to actual need, does not do the specific requirement here. Preferably, in this embodiment, the first clamping portion 20 and the transition portion 21 are integrally formed, and the first clamping portion 20 and the transition portion 21 are in a stepped configuration, that is, the transition portion 21 is fixedly disposed at the inner side of the first clamping portion 20, the upper surface of the transition portion 21 and the upper surface of the first clamping portion 20 are not located in the same plane, the upper surface of the transition portion 21 is located at the lower portion of the upper surface of the first clamping portion 20, the other side of the transition portion 21 away from the first clamping portion 20 is fixedly connected to the supporting portion 22, and the transition portion 21 and the supporting portion 22 are in a stepped configuration. The lower surfaces of the transition part 21 and the support part 22 can be in the same plane, and the upper surface of the transition part 21 and the upper surface of the support part 22 are not in the same plane, so that the thickness of the support part 22 is smaller than that of the transition part 21; or the lower surface of the transition part 21 and the lower surface of the support part 22 are not located on the same plane, the upper surface of the transition part 21 and the upper surface of the support part 22 are not located on the same plane, and the thicknesses of the transition part 21 and the support part 22 are the same, so that the support part 22 can support the multiple projection clamping device 7 conveniently; or other structures, which are selected according to actual requirements and are not specifically required.

The number of the positioning holes is a plurality of, and the number of the positioning holes is consistent with that of the positioning pieces at the top end of the isolation valve chamber 3, and the arrangement of the positioning holes is matched with that of the positioning pieces at the top end of the isolation valve chamber 3, so that the throat clamping device 2 can be conveniently positioned when being installed on the isolation valve chamber 3. Preferably, the positioning member is a positioning pin.

The transition portion 20 and the supporting portion 22 may be fixedly connected by a connecting member such as a bolt, or riveted, or welded, or integrally formed, or in other fixing connection manners, which is selected according to actual requirements, and is not specifically required here. Preferably, in the present embodiment, the transition portion 21 and the support portion 22 are integrally formed, so that the structure is stable and the service life is long.

The supporting portion 22 is a plate-shaped structure, and the shape of the supporting portion 22 includes but is not limited to a sector, a trapezoid or a rectangle, and is selected according to actual requirements, and there is no specific requirement here, preferably, in this embodiment, the shape of the supporting portion 22 is a trapezoid, and the number of the supporting portions 22 is plural, and the supporting portions are symmetrically arranged on the inner side of the clamping portion, and are selected according to actual requirements to support the re-projection clamping device 7.

The re-feeding device suitable for the large-diameter throat is used for re-feeding, raw materials are filled in a re-feeding barrel 6, the re-feeding barrel 6 is hung in a screwed-off auxiliary chamber 1 through a lifting device 5, and a throat clamping device 2 is installed at the top end of an isolation valve chamber 3; rotating the auxiliary chamber 1 back, descending the re-feeding barrel 6, enabling the re-feeding clamping device 7 to be in contact with the throat clamping device 2, clamping the re-feeding barrel 6 on the throat clamping device 2, continuously descending the lifting device 5, and enabling the raw materials in the re-feeding barrel 6 to leak out of the re-feeding barrel 6 and enter a crucible for feeding; and after the feeding is finished, taking out the re-feeding barrel 6 and the throat clamping device 2 to finish the re-feeding.

A re-casting method of re-casting device suitable for large-diameter throat comprises the following steps,

filling the re-feeding cylinder 6 with raw materials;

the auxiliary chamber 1 is unscrewed, and the re-throwing cylinder 6 is arranged in the auxiliary chamber 1: when the re-casting barrel 6 is hung, the free end of a lifting rod of the lifting device 5 is connected with a steel cable in the auxiliary chamber 1, and as the diameter of a base of the lifting device 5 is larger than that of the re-casting barrel 6, the re-casting barrel 6 is clamped on the base and is hung in the auxiliary chamber 1 under the action of the lifting rod;

the throat clamp 2 is arranged above the isolation valve chamber 3: aligning a positioning hole of the throat clamping device 2 with a positioning piece at the top end of the isolation valve chamber 3, installing the throat clamping device 2 on the isolation valve chamber 3, and clamping the throat clamping device 2 and the isolation valve chamber 3 through the positioning piece;

the auxiliary chamber 1 is arranged on the throat clamping device 2: the auxiliary chamber 1 is rotated back, and the auxiliary chamber 1 is arranged on the throat clamping device 2;

descending the re-throwing cylinder 6, through re-throwing the clamping device 7 with throat clamping device 2 joint, re-throwing the cylinder 6 to establish on throat clamping device 2: descending the re-casting cylinder 6, when the re-casting clamping device 7 contacts with the throat clamping device 2, the re-casting cylinder 6 is clamped on the throat clamping device 2 through the re-casting clamping device 7 and the throat clamping device 2 and does not descend any more;

the re-feeding barrel 6 is continuously descended, the lifting device 5 is separated from the re-feeding barrel 6, and re-feeding is carried out: the re-feeding cylinder 6 is blocked by the throat clamping device 2, the re-feeding cylinder 6 does not descend any more, the lifting device 5 is not affected and continues to descend, the base of the lifting device 5 is separated from the bottom end of the re-feeding cylinder 6, and the raw materials in the re-feeding cylinder 6 fall into the crucible along the material distribution device to be re-fed;

after the re-feeding and feeding are completed, the throat clamping device 2 is taken out, and the method comprises the following steps:

the lifting device 5 is lifted to lift the re-throwing barrel 6 and the lifting device 5 into the auxiliary chamber 1: after the re-casting is finished, the lifting device 5 is lifted, the base of the lifting device 5 is contacted with the bottom end of the re-casting barrel 6, so that the re-casting barrel 6 is linked with the lifting device 5, the re-casting barrel 6 and the lifting device 5 are lifted simultaneously, and the re-casting barrel 6 is lifted into the auxiliary chamber 1;

unscrewing the auxiliary chamber 1, taking down the throat clamping device 2: lifting the re-throwing cylinder 6 into the auxiliary chamber 1, unscrewing the auxiliary chamber 1, and taking down the throat clamping device 2;

and taking down the re-casting cylinder 6 to finish the re-casting.

The re-casting device suitable for the large-diameter throat is adopted for re-casting, the restriction of the inner diameter of the water cooling sleeve is avoided, a re-casting barrel with a larger size can be used, the maximum single crystal drawing diameter can reach 335mm, and the requirement of large-size single crystal drawing is met.

By adopting the technical scheme, the throat clamping device is provided, meanwhile, the re-casting clamping device is installed at the feeding end of the re-casting barrel, the re-casting clamping device is matched with the throat clamping device, and the throat clamping device is clamped with the top end of the isolation valve chamber, so that the feeding end of the re-casting barrel is clamped in the isolation valve chamber, the re-casting requirement of the large-size re-casting barrel is met, the drawing requirement of the single crystal diameter in a larger range is met, the feeding amount of the single barrel can be increased, the re-casting times are reduced, the workload of workers is reduced, the re-casting process flow during re-casting is simple, and the practicability is high.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.