CN217479301U

CN217479301U - Reinforced cooling quartz crucible melting electrode assembly and melting equipment

Info

Publication number: CN217479301U
Application number: CN202221773687.9U
Authority: CN
Inventors: 钱海炳; 舒晓峰; 徐晓军; 季军; 许桂青
Original assignee: Jiangyin Hongchao Technology Co ltd
Current assignee: Jiangyin Hongchao Technology Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-09-23
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a reinforcing refrigerated quartz crucible founds electrode subassembly and founds equipment, wherein electrode subassembly includes: the electrode bracket comprises a positioning disc, a lifting disc and a base which are arranged in sequence from top to bottom; the number of the electrodes is at least three, and the electrodes are annularly distributed and surrounded on the periphery of the electrode support; one of the base and the lifting disc is hinged with the electrode shaft, and the other is hinged with the electrode shaft through a connecting rod; the screw nut pair drives the lifting disc to move and the end part of the electrode is opened and closed relative to the annular distribution center; the nut is fixedly connected with the lifting disc, and the screw rod is rotatably connected with the base and the positioning disc and is connected with the screw rod driving piece; the base is provided with a cooling piece, and the cooling piece extends and is arranged between the adjacent electrodes. This reinforcing refrigerated quartz crucible founds electrode subassembly passes through the cooling piece and to the hot-air heat transfer that founds the crucible in-process and rise, reduces electrode holder and electrode holder surrounding ambient temperature, and then reduces the vice temperature of screw drive spare and screw nut, reduces the vice probability of locking of screw nut.

Description

Reinforced cooling quartz crucible melting electrode assembly and melting equipment

Technical Field

The utility model relates to a quartz crucible production facility technical field, concretely relates to reinforcing refrigerated quartz crucible founds electrode subassembly and founds equipment.

Background

The production of the quartz crucible is completed by adopting melting equipment, and the basic mechanism of the melting equipment comprises: the electrode, the electrode bracket and the heat-resistant plate; the electrode supports are used for connecting electrodes, and the electrodes in the melting state penetrate through the through holes of the heat-resisting plate in a one-to-one correspondence mode and extend into the crucible rotary forming mechanism. The improved technical proposal is as described in CN111592211A, each graphite electrode is controlled by an electric lifting driving mechanism to lift up and down, the electrode is clamped and fixed by an electrode clamping mechanism, and the electrode clamping mechanism moves up and down along a guide mechanism according to a preset opening and closing path under the driving of a power device; the heat shielding water cooling plate is provided with a long hole for the electrode to pass through.

In order to improve the heating efficiency and the heating uniformity of the circumferential side wall of the crucible, the number of electrodes for manufacturing the large-size quartz crucible is increased. In order to control the precise opening and closing of the electrode, a screw transmission mechanism is selected from the electrode clamping mechanism, and the following technical defects are as follows: the number of the long holes in the heat shielding water cooling plate is increased, the total amount of hot air which goes upwards through the long holes is increased, the electrode clamping mechanism is exposed in the hot air for a long time, locking is easy to occur due to the fact that a screw nut pair expands when heated, and therefore the electrode clamping mechanism fails, melting crucible raw materials are scrapped and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an one of the purpose lies in overcoming the defect that exists among the prior art, provides an reinforcing refrigerated quartz crucible founds electrode subassembly, utilizes cooling piece and base and electrode heat transfer, reduces the base temperature, reduces the base to the heat of lead screw conduction, reduces the vice probability of locking of screw nut.

Above-mentioned technological effect, the utility model discloses a technical scheme does: an enhanced cooling quartz crucible fusion electrode assembly comprising:

the electrode bracket comprises a positioning disc, a lifting disc and a base which are arranged in sequence from top to bottom;

the number of the electrodes is at least three, and the electrodes are annularly distributed and surrounded on the periphery of the electrode support; one of the base and the lifting disc is hinged with the electrode shaft, and the other is hinged with the electrode shaft through a connecting rod;

the lead screw nut pair drives the lifting disc to move and the end part of the electrode to open and close relative to the annular distribution center; the nut is fixedly connected with the lifting disc, and the screw rod is rotatably connected with the base and the positioning disc and is connected with the screw rod driving piece;

the base is provided with a cooling piece which extends between adjacent electrodes.

The preferred technical scheme does, the quantity of electrode is twelve, twelve the electrode is the ring array and encloses the periphery of locating the electrode support.

The preferable technical scheme is that the cooling part is provided with a liquid cooling channel, the liquid cooling channel is communicated with a liquid inlet pipe and a liquid discharge pipe, and the liquid cooling channel is arranged between adjacent electrodes in an extending mode.

The preferable technical scheme is that the cooling part comprises a U-shaped liquid cooling part, and the electrodes are arranged in the openings of the U-shaped liquid cooling part in a one-to-one correspondence manner.

The preferred technical scheme does, the cooling part still includes the liquid cooling dish, the liquid cooling dish with U-shaped liquid cooling part intercommunication, the liquid cooling dish with the bottom surface laminating of base is connected.

The preferable technical scheme is that the U-shaped liquid cooling piece comprises a connecting part and two parallel side blocking parts, and the connecting part is connected with the two side blocking parts;

the inlet of U-shaped liquid cooling spare set up in the top of connecting portion, the liquid outlet set up in the bottom of side fender portion.

The cooling part comprises at least two liquid discharge pipes, and one liquid discharge pipe is communicated with the liquid outlets of at least two U-shaped liquid cooling parts.

Preferably, the lifting disc and/or the spindle drive are provided with cooling elements.

The second purpose of the utility model is to provide a crucible melting device, which comprises a lifting driving mechanism, a heat-resisting plate and the quartz crucible melting electrode component; the electrode support and the cooling piece are arranged above the heat-resistant plate, the electrode penetrates through a long hole of the heat-resistant plate, and the lifting driving mechanism drives the heat-resistant plate and the electrode support to lift synchronously.

The preferable technical scheme is that the cooling piece is flush with the long-edge hole wall of the long hole.

The utility model has the advantages and the beneficial effects that:

this reinforcing refrigerated quartz crucible founds electrode subassembly passes through the cooling piece and to the hot-air heat transfer that founds the crucible in-process and rise, reduces electrode holder and electrode holder surrounding ambient temperature, and then reduces the vice temperature of screw drive spare and screw nut, reduces the vice probability of locking of screw nut.

Drawings

FIG. 1 is a schematic front view of an embodiment of a quartz crucible fusion electrode assembly with enhanced cooling;

FIG. 2 is a schematic view of another state of use of the electrode and cooling element of FIG. 1;

FIG. 3 is a perspective view of the cooling element of the embodiment of FIG. 1;

FIG. 4 is a schematic cross-sectional view of another embodiment of the lifting plate;

FIG. 5 is a schematic view of the structure of a motor in another embodiment;

FIG. 6 is a schematic front view of the crucible melting apparatus;

in the figure: 1. an electrode holder; 101. positioning a plate; 102. a lifting plate; 103. a base; 104. a connecting rod; 105. a pillar; 2. an electrode; 3. a screw-nut pair; 31. a nut; 4. a motor; 5. a cooling member; 51. a U-shaped liquid cooling member; 511. a connecting portion; 512. a side stop portion; 52. a liquid cooling plate; 6. a liquid inlet pipe; 7. a liquid discharge pipe; 8. a cooling coil; 9. a layer of thermal insulation material; 10. a cooling channel; 11. a lifting drive mechanism; 12. a heat resistant plate.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.

In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

Examples

As shown in fig. 1, the quartz crucible melting electrode assembly with enhanced cooling of the embodiment comprises an electrode support 1, an electrode 2 and a lead screw nut pair 3, wherein the electrode support 1 comprises a positioning disc 101, a lifting disc 102 and a base 103 which are sequentially arranged from top to bottom, and the lifting disc 102 is movably arranged between the positioning disc 101 and the base 103; the number of the electrodes 2 is at least three, and the at least three electrodes 2 are annularly distributed and surrounded on the periphery of the electrode support 1; the base 103 is hinged with the electrode 2, and the lifting disc 102 is hinged with the electrode 2 through a connecting rod 104; the screw-nut pair 3 drives the lifting disc 102 to move and the end part of the electrode 2 is opened and closed relative to the annular distribution center; the nut of the screw-nut pair 3 is fixedly connected with the lifting disc 102, and the screw is rotatably connected with the base 103 and the positioning disc 101 and is connected with the screw driving piece motor 4; the base 103 is provided with cooling members 5, and the cooling members 5 are extended between the adjacent electrodes 2.

The temperature of the cooling element 5 is lower than the temperature of the hot air upstream. Optionally, the base 103 is the cooling element 5, or the base 103 is fixedly connected with the cooling element 5. When the base 103 is the cooling member 5, the base 103 is provided with a limiting hole rotatably connected with the lead screw. The cooling element includes, but is not limited to, a liquid cooling member, an air cooling member. The liquid cooling piece takes liquid as a cooling medium, and the air cooling piece needs to be matched with air blowing or air inducing equipment. The positioning plate 101 and the base 103 are fixedly connected through a support 105, and the lifting plate 102 is positioned in a space enclosed by the positioning plate 101, the base 103 and the support 105.

Twelve electrodes 2 are arranged, and the twelve electrodes 2 are arranged on the periphery of the electrode support 1 in an annular array. Electrode 2 heating is based on three-phase electrodes, each indicated at A, B, C for example, twelve electrodes 2 arranged in an ABC cycle in a sequence clockwise or counterclockwise of the circle. The number of electrodes 2 is specifically determined according to the size of the crucible to be melted. The more electrodes 2, the more quartz crucibles with larger diameters are melted.

In the preferred embodiment, as shown in figure 2, the cooling element 5 is provided with a liquid cooling channel which communicates with a liquid inlet pipe 6 and a liquid outlet pipe 7, the liquid cooling channel extending between adjacent electrodes 2. The liquid inlet pipe 6 and the liquid outlet pipe 7 are communicated with the cooling circulation device to form a closed loop, or the liquid inlet pipe 6 is communicated with a cooling liquid source, such as a water source.

In another preferred embodiment, as shown in fig. 3, the cooling member 5 comprises a U-shaped liquid cooling member 51, and the electrodes 2 are disposed in one-to-one correspondence in the openings of the U-shaped liquid cooling member 51. The U-shaped liquid cooling member 51 can enlarge the circumferential heat exchange area of the electrode 2, and improve the heat exchange efficiency. Furthermore, the opening of the U-shaped liquid cooling member 51 is oriented to be consistent with the radial direction of the annular distribution of the electrode 2 from the center to the periphery, and the preferred U-shaped liquid cooling member 51 has a larger heat exchange area with the upward hot air.

In another preferred embodiment, as shown in fig. 3, the cooling member 5 further comprises a liquid cooling plate 52, the liquid cooling plate 52 is communicated with the U-shaped liquid cooling member 51, and the liquid cooling plate 52 is attached to the bottom surface of the base 103. The bottom surface of the base 103 is blocked in the upward path of the hot air, and the bottom surface and the hot air have a larger heat exchange area, so that the temperature rise speed of the base 103 is faster than that of the lifting disc 102 and the positioning disc 101. The liquid cooling plate 52 isolates the base 103 and the hot air ascending, and is also used as a liquid separating piece to be communicated with the U-shaped liquid cooling piece 51.

In another preferred embodiment, as shown in fig. 3, the U-shaped liquid cooling member 51 includes a connecting portion 511 and two side blocking portions 512 parallel to each other, wherein the connecting portion 511 connects the two side blocking portions 512; the liquid inlet of the U-shaped liquid cooling member 51 is disposed at the top end of the connecting portion 511, and the liquid outlet is disposed at the bottom end of the side blocking portion 512. The connection portion 511 is determined according to the angle of the electrode 2 in the production of the melting crucible, so as not to directly contact with the electrode 2.

As shown in fig. 3, a drain pipe 7 communicates with the outlets of six U-shaped liquid cooling members 51, and two drain pipes 7 are provided to the cooling compartment 5.

In another preferred embodiment, as shown in fig. 4-5, the lifting plate 102 and the lead screw drive are provided with cooling elements. The cooling element of the screw rod driving part motor 4 can be selected as a cooling coil 8 wound around the periphery of the motor 4, and further, the cooling coil 8 is coated with a heat insulation material layer 9, such as asbestos, a foam coiled material and the like; the cooling elements in the lifting plate 102 are used for cooling the nuts, and may be selected as cooling channels 10 arranged around the periphery of the nuts 31, wherein liquid inlets and liquid outlets of the cooling channels 10 extend out of the lifting plate 102, and the above cold cutting channels may be formed by embedding cooling pipes in the lifting plate 102.

As shown in FIG. 6, the crucible melting apparatus of the embodiment comprises a lifting drive mechanism 11, a heat-blocking plate 12, and the above-mentioned quartz crucible melting electrode 2 assembly; the electrode support 1 and the cooling piece 5 are both arranged above the heat-resistant plate 12, the electrode 2 is arranged in a long hole of the heat-resistant plate 12 in a penetrating mode, and the lifting driving mechanism 11 drives the heat-resistant plate 12 and the electrode support 1 to lift synchronously. The long side direction of the long hole is consistent with the radial direction of the electrode 2 distribution.

The screw-nut pair 3 drives the lifting disc 102 to move and the end part of the electrode 2 to open and close relative to the annular distribution center, namely, the included angle between the electrode 2 and the annular distribution center shaft is adjusted. The heat blocking plate 12 is a water-cooled plate having a water-cooled channel and a predetermined thickness. The included angle between the electrode 2 and the annular distribution central axis changes, and the orthographic projection of the long hole penetrating section of the electrode 2 on the heat-resisting plate 12 along the annular distribution central axis also changes. The cooling element 5 is flush with the long-side hole wall of the long hole, i.e. the two side baffles 512 of the U-shaped liquid cooling element 51 are flush with the long-side hole wall of the long hole. The structure can further increase the heat exchange area of the cooling piece 5 and hot air which flows upwards through the long hole, and improve the heat exchange efficiency.

The working process of the crucible melting equipment with cooling enhancement and adaptation comprises the following steps:

the lifting driving mechanism drives the electrode to descend and extend into the prefabricated crucible rotary forming mechanism; heating and melting quartz powder in the forming mechanism by electric arc, and adjusting the opening and closing of electrodes according to a preset track by a motor through a lead screw nut pair in the melting process; after the melting is finished, the lifting driving mechanism drives the electrode to ascend and is separated from the crucible rotation forming mechanism. During the process of melting the crucible, cooling liquid such as water is continuously introduced into the cooling piece, and the water heated by heat exchange is discharged through a liquid discharge pipe.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A quartz crucible fusion electrode assembly with enhanced cooling, comprising:

the screw rod nut pair drives the lifting disc to move and the end part of the electrode is opened and closed relative to the annular distribution center; the nut is fixedly connected with the lifting disc, and the screw rod is rotatably connected with the base and the positioning disc and is connected with the screw rod driving piece; the electrode structure is characterized in that the base is provided with a cooling piece, and the cooling piece extends between the adjacent electrodes.

2. The quartz crucible melting electrode assembly of claim 1, wherein the number of the electrodes is twelve, and twelve of the electrodes are arranged around the outer circumference of the electrode holder in an annular array.

3. The quartz crucible melting electrode assembly of claim 1, wherein the cooling member is provided with a liquid cooling passage in communication with a liquid inlet tube and a liquid discharge tube, the liquid cooling passage extending between adjacent electrodes.

4. The quartz crucible melting electrode assembly of claim 3, wherein the cooling member comprises a U-shaped liquid cooling member, and the electrodes are disposed in one-to-one correspondence in the opening of the U-shaped liquid cooling member.

5. The quartz crucible melting electrode assembly of claim 4, wherein the cooling member further comprises a liquid cooling disc, the liquid cooling disc is communicated with the U-shaped liquid cooling member, and the liquid cooling disc is attached to the bottom surface of the base.

6. The quartz crucible melting electrode assembly of claim 4, wherein the U-shaped liquid cooling element comprises a connecting portion and two parallel side stops, the connecting portion connecting the two side stops;

the liquid inlet of U-shaped liquid cooling spare set up in the top of connecting portion, the liquid outlet set up in the bottom of side fender portion.

7. The quartz crucible melting electrode assembly of claim 4, wherein the cooling member comprises at least two drain tubes, one drain tube communicating with the outlets of at least two U-shaped cooling members.

8. The quartz crucible melting electrode assembly of claim 1, wherein the lifting plate and/or the lead screw drive is provided with a cooling element.

9. A crucible melting apparatus comprising a lifting drive mechanism, a heat-blocking plate, and the quartz crucible melting electrode assembly of any one of claims 1 to 8; the electrode support and the cooling piece are arranged above the heat-resistant plate, the electrode penetrates through a long hole of the heat-resistant plate, and the lifting driving mechanism drives the heat-resistant plate and the electrode support to lift synchronously.

10. The crucible melting apparatus of claim 9, wherein the cooling member is flush with a long side wall of the elongated hole.