CN201442992U - Graphite crucible for polycrystalline silicon ingot production - Google Patents
Graphite crucible for polycrystalline silicon ingot production Download PDFInfo
- Publication number
- CN201442992U CN201442992U CN2009200296058U CN200920029605U CN201442992U CN 201442992 U CN201442992 U CN 201442992U CN 2009200296058 U CN2009200296058 U CN 2009200296058U CN 200920029605 U CN200920029605 U CN 200920029605U CN 201442992 U CN201442992 U CN 201442992U
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- base plate
- polycrystalline silicon
- silicon ingot
- bottom plate
- around
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Abstract
The utility model relates to a graphite crucible for polycrystalline silicon ingot production. The graphite crucible comprises a bottom plate and a cambered side plate around the bottom plate, the bottom plate is raised inwards, and moreover, drain holes are arranged between the circumference of the bottom plate and the cambered side plate. Since the bottom plate is raised inwards, the molten silicon spilled out via the cracks of a quartz crucible can continues to flow after flowing to the bottom plate, moreover, the flow direction is arranged at the drain holes around the bottom plate, consequently, the alarm time is saved, and the occurrence of an accident is prevented.
Description
Technical field
The utility model relates to a kind of polycrystalline silicon ingot casting plumbago crucible.
Background technology
In the existing polycrystalline silicon ingot or purifying furnace that uses, the plumbago crucible that is used to support quartz crucible all is to be made of a base plate and four blocks of side plates, and when silicon hydrorrhea stream took place, silicon liquid flowed on smooth plumbago crucible base plate everywhere, thereby can not in time find, therefore prolong the time of fire alarming of accident.
The Chinese patent Granted publication number is CN201104102Y, Granted publication day is that the utility model patent on August 20th, 2008 discloses a kind of polycrystalline silicon ingot or purifying furnace plumbago crucible, this utility model is offered groove around the plumbago crucible base plate and between the bottom of side plate, when the crack appears in quartz crucible, can be under the guiding of groove, overflow silicon liquid in time by flowing to overflow, is sent warning.But because the base plate of this utility model still is dull and stereotyped, is difficult to guarantee that the silicon liquid that overflows from the quartz crucible crack can flow to groove all around timely, thereby has postponed time of fire alarming, accidents caused easily.
Summary of the invention
For overcoming the above problems, the purpose of this utility model provides a kind of polycrystalline silicon ingot casting plumbago crucible, and this plumbago crucible can overflow the flow direction of back guiding silicon liquid at silicon liquid from the quartz crucible crack, thereby can in time report to the police.
For realizing above purpose, the utility model provides a kind of polycrystalline silicon ingot casting plumbago crucible, and this plumbago crucible comprises the curved surface side plate around base plate and the base plate, and described base plate is interior convex form, and offers conduction hole around base plate and between the curved surface side plate.
Described base plate in the plane be projected as Polygons, circle, ellipse or olive shape.
Described curved surface side plate is a whole curved surface.
Described conduction hole is at least four, and be separately positioned on base plate around.
Compared with prior art, the beneficial effects of the utility model are:
Therefore 1. because base plate of the present utility model is interior convex form, overflow silicon liquid from the quartz crucible crack in a single day to arrive base plate, will be under the effect of gravity, flow to the floor along plate outer surface around, arrive conduction hole then, thus warning in time.
Since conduction hole of the present utility model be arranged on base plate around, therefore can guarantee that the silicon liquid that overflows any direction crack all has corresponding conduction hole, has saved time of fire alarming around quartz crucible.
3. because the utility model includes only floor and curved surface side plate, and the curved surface side plate is a whole curved surface, not only saves material, and processing is simple, saves man-hour.
Description of drawings
Fig. 1 is the sectional view of a kind of polycrystalline silicon ingot casting of the present utility model with plumbago crucible.
Fig. 2 is the upward view of a kind of polycrystalline silicon ingot casting of the present utility model with plumbago crucible.
Among the figure: base plate 1, curved surface side plate 2, quartz crucible 3, conduction hole 4.
Embodiment
Below in conjunction with description of drawings the utility model is described in further detail.
Referring to Fig. 1 and Fig. 2, a kind of polycrystalline silicon ingot casting of the present utility model comprises base plate 1 and base plate 1 curved surface side plate 2 all around with plumbago crucible, and described base plate 1 is interior convex form, and is having conduction hole 4 around the base plate 1 and between the curved surface side plate 2.
Described base plate 1 in the plane be projected as Polygons, circle, ellipse or olive shape.
Described curved surface side plate 2 is whole curved surface, pref. cylindrical or a taper shape.
Described conduction hole 4 is at least four, and be separately positioned on base plate 1 lip-deep around, and described conduction hole 4 is for being symmetrically set.
In actual production, quartz crucible 3 is put into plumbago crucible, the bottom of quartz crucible 3 contacts with the base plate of plumbago crucible 1, the bottom of quartz crucible 3 contacts with the curved surface side plate 2 of plumbago crucible simultaneously, the outer area of the corresponding quartz crucible 3 of the inner area of plumbago crucible, thereby after making quartz crucible 3 put into plumbago crucible, both sides contact firmly.When quartz crucible 3 crack occurs aborning, the silicon liquid that overflows from the crack can flow to base plate 1 under the effect of gravity, because base plate 1 is interior convex form, so after silicon liquid flows on the base plate 1, because the effect of gravity also can continue surface current along base plate 1 around base plate 1, finally flow in the conduction hole 4 that is arranged between base plate 1 and curved surface side plate 2 bottoms, flow to warning device then, cause alarm.
Claims (4)
1. polycrystalline silicon ingot casting plumbago crucible comprises the curved surface side plate (2) around base plate (1) and the base plate, and it is characterized in that: described base plate is (1) interior convex form, and at base plate (1) all around and have conduction hole (4) between the curved surface side plate (2).
2. polycrystalline silicon ingot casting plumbago crucible according to claim 1 is characterized in that: described base plate (1) in the plane be projected as Polygons, circle, ellipse or olive shape.
3. polycrystalline silicon ingot casting plumbago crucible according to claim 1 is characterized in that: described curved surface side plate (2) is a whole curved surface.
4. according to each described polycrystalline silicon ingot casting plumbago crucible among the claim 1-3, it is characterized in that: described conduction hole (4) is at least four, and be separately positioned on base plate (1) around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200296058U CN201442992U (en) | 2009-07-08 | 2009-07-08 | Graphite crucible for polycrystalline silicon ingot production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200296058U CN201442992U (en) | 2009-07-08 | 2009-07-08 | Graphite crucible for polycrystalline silicon ingot production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201442992U true CN201442992U (en) | 2010-04-28 |
Family
ID=42547668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200296058U Expired - Fee Related CN201442992U (en) | 2009-07-08 | 2009-07-08 | Graphite crucible for polycrystalline silicon ingot production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201442992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094239A (en) * | 2010-09-28 | 2011-06-15 | 常州天合光能有限公司 | Ingot polycrystalline furnace bottom crucible protective plate |
| CN103255470A (en) * | 2013-06-06 | 2013-08-21 | 英利集团有限公司 | Silicon ingot furnace and leakage detection device thereof |
-
2009
- 2009-07-08 CN CN2009200296058U patent/CN201442992U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094239A (en) * | 2010-09-28 | 2011-06-15 | 常州天合光能有限公司 | Ingot polycrystalline furnace bottom crucible protective plate |
| CN103255470A (en) * | 2013-06-06 | 2013-08-21 | 英利集团有限公司 | Silicon ingot furnace and leakage detection device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20100708 |