CN204151458U - A kind of polycrystalline ingot furnace - Google Patents
A kind of polycrystalline ingot furnace Download PDFInfo
- Publication number
- CN204151458U CN204151458U CN201420579867.2U CN201420579867U CN204151458U CN 204151458 U CN204151458 U CN 204151458U CN 201420579867 U CN201420579867 U CN 201420579867U CN 204151458 U CN204151458 U CN 204151458U
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- China
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- heat
- heat exchange
- exchange mass
- crucible
- heater
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of polycrystalline ingot furnace, the crucible of this polycrystalline ingot furnace is arranged in heat-insulation cage, top heater is provided with in crucible top and heat-insulation cage, side heater is provided with in crucible both sides and heat-insulation cage, crucible bottom is provided with heat exchange mass, heat exchange mass is convex and the one side of projection contacts with crucible bottom, heat exchange mass upper lobes part surrounding is provided with heat insulating strip, heat exchange mass lower flat plate part surrounding is provided with insulation quilt and at least exceeds bottom 10 more than the ㎝ of the plate part of heat exchange mass.Adopt the utility model, because heat exchange mass is that thick middle both sides are thin, heat insulating strip can delay the heat radiation of centre (i.e. bossing) to both sides, insulation quilt exceeds heat exchange mass bottom makes bottom have enough large longitudinal temperature gradients, heat can be radiated uniformly below heat exchange mass, promote evenly long brilliant, improve ingot casting quality, fully can retain again abundant infusible silicon material in body of heater and be conducive to next ingot casting.
Description
Technical field
The utility model relates to a kind of polycrystalline ingot furnace.
Background technology
At present, in the polycrystalline ingot furnace utilizing fritting explained hereafter silicon heavy stone used as an anchor, be crucible bottom setting not only side but also the heat exchange mass of smooth tabular in stove, this heat exchange mass, due to inequality of dispelling the heat, there will be convex crystal face in long brilliant process, form dislocation, depositing contaminants, have impact on polysilicon quality, and its yield rate produced is only about 64%, and to be easy to retain infusible silicon materialization complete 4 corners, therefore the effect of producing whole ingot can not be reached.
Summary of the invention
The purpose of this utility model is to provide and can prevents from occurring convex crystal face in long brilliant process, and can produce a kind of polycrystalline ingot furnace of more complete silicon ingot.
The solution that the utility model is taked is: a kind of polycrystalline ingot furnace, heat-insulation cage is provided with in body of heater, crucible is arranged in heat-insulation cage, top heater is provided with in the top and heat-insulation cage of crucible, side heater is provided with in the both sides and heat-insulation cage of crucible, heat exchange mass is provided with in the bottom of crucible, it is characterized in that heat exchange mass is convex and the one side of projection is touched with the bottom connection of crucible, the surrounding of the bossing on heat exchange mass top is provided with heat insulating strip, insulation quilt is provided with and insulation quilt at least exceeds bottom 10 more than the ㎝ of the plate part of heat exchange mass in the surrounding of the plate part of heat exchange mass bottom.
Adopt the utility model, because heat exchange mass is that thick middle both sides are thin, and add heat insulating strip at the bossing of heat exchange mass, in the middle of having delayed, (i.e. bossing) is to the heat radiation of both sides, simultaneously insulation quilt exceeds heat exchange mass bottom and makes bottom have enough large longitudinal temperature gradients, heat can be radiated uniformly below heat exchange mass, promote evenly long crystalline substance, improve ingot casting quality, fully can retain again abundant infusible silicon material in body of heater and be conducive to next ingot casting.Show according to experimental result, yield rate can reach 70%.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of heat exchange mass of the present utility model.
In figure, sequence number represents: body of heater 1, heat-insulation cage 2, top heater 3, side heater 4, crucible 5, heat insulating strip 6, insulation quilt 7, heat exchange mass 8, pillar 9, bossing 10 and plate part 11.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
See figures.1.and.2, heat-insulation cage 2 is had by pillar 9 erection in the body of heater 1 of this polycrystalline ingot furnace, crucible 5 is arranged in heat-insulation cage 2, top heater 3 is provided with in the top of crucible 5 and heat-insulation cage 2, side heater 4 is provided with in the both sides of crucible 5 and heat-insulation cage 2, the heat exchange mass 8 in convex is provided with in the bottom of crucible 5, and bossing 10 touches with the bottom connection of crucible 5, the surrounding of the bossing 10 on heat exchange mass 8 top is provided with heat insulating strip 6, the surrounding of the plate part 11 of heat exchange mass 8 bottom is provided with insulation quilt 7, and insulation quilt 7 at least exceeds bottom 10 more than the ㎝ of the plate part 11 of heat exchange mass.
Because heat exchange mass is that thick middle both sides are thin, heat insulating strip 6 is added in the surrounding of the bossing 10 of heat exchange mass, in the middle of having delayed, (i.e. bossing 10) is to the heat radiation of both sides, insulation quilt 7 exceeds the bottom of the plate part 11 of heat exchange mass 8 simultaneously, bottom is made to have enough large longitudinal temperature gradients, heat can be radiated uniformly below heat exchange mass 8, promote evenly long brilliant, convex crystal face can not be formed, can ensure that whole ingot is all efficient polycrystalline silicon heavy stone used as an anchor, improve ingot casting quality, again can under surrounding insulation effect, in abundant reservation body of heater, abundant infusible silicon material is conducive to next ingot casting, make to melt and to answer retained part to reach a trim point the most effective.Show according to experimental result, yield rate can reach 70%, thus improves the Commercial cultivation rate of polycrystalline silicon material.
Claims (1)
1. a polycrystalline ingot furnace, heat-insulation cage is provided with in body of heater, crucible is arranged in heat-insulation cage, top heater is provided with in the top and heat-insulation cage of crucible, side heater is provided with in the both sides and heat-insulation cage of crucible, heat exchange mass is provided with in the bottom of crucible, it is characterized in that heat exchange mass is convex and the one side of projection is touched with the bottom connection of crucible, the surrounding of the bossing on heat exchange mass top is provided with heat insulating strip, insulation quilt is provided with and insulation quilt at least exceeds bottom 10 more than the ㎝ of the plate part of heat exchange mass in the surrounding of the plate part of heat exchange mass bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579867.2U CN204151458U (en) | 2014-10-09 | 2014-10-09 | A kind of polycrystalline ingot furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579867.2U CN204151458U (en) | 2014-10-09 | 2014-10-09 | A kind of polycrystalline ingot furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151458U true CN204151458U (en) | 2015-02-11 |
Family
ID=52509591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420579867.2U Expired - Fee Related CN204151458U (en) | 2014-10-09 | 2014-10-09 | A kind of polycrystalline ingot furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204151458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250851A (en) * | 2014-10-09 | 2014-12-31 | 浙江硅宏电子科技有限公司 | Polycrystalline ingot furnace |
| CN105603516A (en) * | 2016-03-14 | 2016-05-25 | 常州兆晶光能有限公司 | Heat cycling system of polycrystalline silicon ingot furnace |
| CN110453281A (en) * | 2018-05-08 | 2019-11-15 | 友达晶材股份有限公司 | Polycrystalline furnace apparatus |
-
2014
- 2014-10-09 CN CN201420579867.2U patent/CN204151458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250851A (en) * | 2014-10-09 | 2014-12-31 | 浙江硅宏电子科技有限公司 | Polycrystalline ingot furnace |
| CN105603516A (en) * | 2016-03-14 | 2016-05-25 | 常州兆晶光能有限公司 | Heat cycling system of polycrystalline silicon ingot furnace |
| CN110453281A (en) * | 2018-05-08 | 2019-11-15 | 友达晶材股份有限公司 | Polycrystalline furnace apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20161009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |