CN202717879U - Novel polysilicon ingot casting furnace overflow protection device - Google Patents
Novel polysilicon ingot casting furnace overflow protection device Download PDFInfo
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- CN202717879U CN202717879U CN 201220381665 CN201220381665U CN202717879U CN 202717879 U CN202717879 U CN 202717879U CN 201220381665 CN201220381665 CN 201220381665 CN 201220381665 U CN201220381665 U CN 201220381665U CN 202717879 U CN202717879 U CN 202717879U
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- ingot casting
- furnace
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Abstract
The utility model discloses a novel polysilicon ingot casting furnace overflow protection device which comprises an upper furnace cylinder (1) and a lower furnace cylinder (8), the upper furnace cylinder (1) and the lower furnace cylinder (8) are connected to form a metal cavity, a layer of overflow cotton (7) is arranged at the bottom of the lower furnace cylinder (8), and overflow wires (6) are arranged on the overflow cotton (7). When a polysilicon ingot casting furnace is used for ingot casting, if defects exist in a crucible used for charging silicon materials or charging is not standard, when the silicon materials are partially or entirely melted, the crucible is broken and silicon overflows and the overflow cotton can effectively prevent silicon liquid from corrosively damaging the lower furnace cylinder; and after the overflow wires contact with the silicon liquid, the overflow wires can automatically fuse and give an alarm to remind operators to take measures. Therefore, the novel polysilicon ingot casting furnace overflow protection device can greatly improve safety of the polysilicon ingot casting furnace.
Description
Technical field
The utility model relates to the polycrystalline silicon ingot or purifying furnace technical field, especially relates to a kind of Novel polycrystalline silicon ingot furnace overflowing protector.
Background technology
Polycrystalline silicon ingot or purifying furnace is the key equipment that a kind of solar silicon wafers is produced, when using the polycrystalline silicon ingot or purifying furnace ingot casting, if the crucible defectiveness of dress silicon material, perhaps feed lack of standardization, when the silicon material partly or entirely melted, crucible broke and causes the silicon overflow, and liquid-state silicon almost reacts with any material, if silicon liquid flows on the metal furnaces cylinder, then can be with stove cylinder corrosion failure, under high temperature action, the water in the stove collet chuck layer is understood instantaneous vaporization, furnace pressure rises suddenly, causes the danger of blast.Therefore polycrystalline silicon ingot or purifying furnace must have the overflow sfgd..
Present polycrystalline silicon ingot or purifying furnace adopts the high temperature fiber blanket to add the compound splicing construction of low temperature fiber blanket, and when spillway discharge surpassed 80%, still there was potential danger in this structure, and the silicon liquid that overflows still might be penetrated on the metal furnaces cylinder.Simultaneously overflow silk adopts 304 common materials, when a small amount of overflow, the overflow silk can not be fused, thereby not have alarm function.The overflow silk arranges paving track by inside and outside two circles at present, if silicon liquid flows down along the graphite column after the overflow, the overflow silk does not just have alarm function so.
The utility model content
The utility model relates to a kind of Novel polycrystalline silicon ingot furnace overflowing protector, in order to protection and the alarm function during overflow in the ingot casting process, improves the safety in utilization of polycrystalline silicon ingot or purifying furnace.
For realizing this purpose, the method that the utility model adopts is: comprise upper furnace tube 1 and lower stove cylinder 8, described upper furnace tube 1 and lower stove cylinder 8 are connected to form metallic cavity, and the bottom of described lower stove cylinder 8 is provided with one deck overflow cotton 7, and overflow cotton 7 is provided with overflow silk 6.
Be provided with crucible 3 in the described metallic cavity, described crucible 3 bottoms are provided with graphite radiating piece 9, be provided with thermal insulation layer 2 outside the crucible 3, be provided with well heater 10 between described thermal insulation layer 2 and the crucible 3, described graphite radiating piece 9 supports by the three graphite columns 5 that are arranged on lower stove cylinder 8 bottoms.
Described overflow silk 6 is centered around the bottom of three graphite columns 5, and the two ends of described overflow silk 6 are connected with respectively an exit 4.
Described overflow cotton 7 is the pyroceram fibre blanket.
Described overflow silk 6 is the low-temperature alloy silk.
The beneficial effects of the utility model are:
The overflow cotton can absorb the silicon liquid of outflow fully during overflow, and the lower stove cylinder of protection is not caused explosion hazard by the silicon corrosion, and the overflow silk that covers simultaneously three graphite columns can in time fuse and report to the police, and reminds operator to take measures.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is sectional view of the present utility model;
Fig. 2 is A-A face view of the present utility model.
Embodiment
Disclosed all features in this specification sheets, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification sheets (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
A kind of Novel polycrystalline silicon ingot furnace overflowing protector as shown in Figure 1, comprise upper furnace tube 1 and lower stove cylinder 8, described upper furnace tube 1 and lower stove cylinder 8 are connected to form metallic cavity, and the bottom of described lower stove cylinder 8 is provided with one deck overflow cotton 7, and described overflow cotton 7 is the pyroceram fibre blanket; Overflow cotton 7 is provided with overflow silk 6, and described overflow silk 6 is the low-temperature alloy silk.Be provided with crucible 3 in the described metallic cavity, described crucible 3 bottoms are provided with graphite radiating piece 9, are provided with thermal insulation layer 2 outside the crucible 3, are provided with well heater 10 between described thermal insulation layer 2 and the crucible 3; Described graphite radiating piece 9 supports by the three graphite columns 5 that are arranged on lower stove cylinder 8 bottoms.
Lower stove cylinder bottom as shown in Figure 2, described overflow silk 6 is centered around the bottom of three graphite columns 5, and the two ends of described overflow silk 6 are connected with respectively an exit 4.
Situation when overflow occurs in the polycrystalline silicon ingot or purifying furnace production process is described further the utility model:
When using the polycrystalline silicon ingot or purifying furnace ingot casting, if crucible 3 defectiveness of dress silicon material, for example have in the crucible 3 hiddenly split, hole or disbonding, when the silicon material partly or entirely melted, the crucible rejected region broke and causes overflow.Also having a kind of situation is to use the operation of crucible 3 whens filling with substance lack of standardization, and when well heater 10 heat temperature raising, the expansion of silicon material is burst crucible 3 and caused overflow.
In the situation of a small amount of overflow, thermal insulation layer 2 bottoms can absorb silicon liquid, when spillway discharge surpasses 20%; thermal insulation layer 2 can not absorb silicon liquid fully, and silicon liquid can permeate thermal insulation layer 2, or flows out from four limits, thermal insulation layer 2 bottoms; fall on the overflow cotton 7, overflow cotton 7 with its absorption, plays a protective role again.Silicon liquid reminds operator to take measures overflow silk 6 fusing and automatic alarms simultaneously, and the utility model can greatly improve the security of polycrystalline silicon ingot or purifying furnace.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (5)
1. Novel polycrystalline silicon ingot furnace overflowing protector; comprise upper furnace tube (1) and lower stove cylinder (8); described upper furnace tube (1) and lower stove cylinder (8) are connected to form metallic cavity; it is characterized in that: the bottom of described lower stove cylinder (8) is provided with one deck overflow cotton (7), and overflow cotton (7) is provided with overflow silk (6).
2. Novel polycrystalline silicon ingot furnace overflowing protector according to claim 1; it is characterized in that: be provided with crucible (3) in the described metallic cavity; described crucible (3) bottom is provided with graphite radiating piece (9); the outer thermal insulation layer (2) that is provided with of crucible (3); be provided with well heater (10) between described thermal insulation layer (2) and the crucible (3), described graphite radiating piece (9) supports by the three graphite columns (5) that are arranged on lower stove cylinder (8) bottom.
3. Novel polycrystalline silicon ingot furnace overflowing protector according to claim 1 is characterized in that, described overflow silk (6) is centered around the bottom of three graphite columns (5), and the two ends of described overflow silk (6) are connected with respectively an exit (4).
4. Novel polycrystalline silicon ingot furnace overflowing protector according to claim 1 is characterized in that, described overflow cotton (7) is the pyroceram fibre blanket.
5. Novel polycrystalline silicon ingot furnace overflowing protector according to claim 3 is characterized in that, described overflow silk (6) is the low-temperature alloy silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381665 CN202717879U (en) | 2012-08-03 | 2012-08-03 | Novel polysilicon ingot casting furnace overflow protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381665 CN202717879U (en) | 2012-08-03 | 2012-08-03 | Novel polysilicon ingot casting furnace overflow protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202717879U true CN202717879U (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201220381665 Expired - Fee Related CN202717879U (en) | 2012-08-03 | 2012-08-03 | Novel polysilicon ingot casting furnace overflow protection device |
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| CN (1) | CN202717879U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866384A (en) * | 2014-03-23 | 2014-06-18 | 山西中电科新能源技术有限公司 | Polycrystalline silicon ingot furnace with overflow protection function |
| CN104805499A (en) * | 2015-05-18 | 2015-07-29 | 王进 | N type polycrystalline ingot casting equipment and process for preparing N type polycrystalline ingot |
| WO2015172410A1 (en) * | 2014-05-14 | 2015-11-19 | 深圳市华星光电技术有限公司 | Heating vessel capable of detecting and preventing leakage of high temperature metal material, and manufacturing method |
| CN107326436A (en) * | 2017-07-25 | 2017-11-07 | 扬州续笙新能源科技有限公司 | A kind of ingot furnace for improving the average conversion efficiency of silicon ingot |
| CN108842182A (en) * | 2018-09-27 | 2018-11-20 | 宜昌南玻硅材料有限公司 | A kind of polysilicon water cooling ingot furnace overflowing protective device |
| CN113774481A (en) * | 2021-09-09 | 2021-12-10 | 扬州晶樱光电科技有限公司 | Overflow protection system of polycrystalline ingot furnace |
-
2012
- 2012-08-03 CN CN 201220381665 patent/CN202717879U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866384A (en) * | 2014-03-23 | 2014-06-18 | 山西中电科新能源技术有限公司 | Polycrystalline silicon ingot furnace with overflow protection function |
| CN103866384B (en) * | 2014-03-23 | 2016-01-13 | 山西中电科新能源技术有限公司 | There is the polycrystalline silicon ingot or purifying furnace of flood protection feature |
| WO2015172410A1 (en) * | 2014-05-14 | 2015-11-19 | 深圳市华星光电技术有限公司 | Heating vessel capable of detecting and preventing leakage of high temperature metal material, and manufacturing method |
| CN104805499A (en) * | 2015-05-18 | 2015-07-29 | 王进 | N type polycrystalline ingot casting equipment and process for preparing N type polycrystalline ingot |
| CN107326436A (en) * | 2017-07-25 | 2017-11-07 | 扬州续笙新能源科技有限公司 | A kind of ingot furnace for improving the average conversion efficiency of silicon ingot |
| CN108842182A (en) * | 2018-09-27 | 2018-11-20 | 宜昌南玻硅材料有限公司 | A kind of polysilicon water cooling ingot furnace overflowing protective device |
| CN113774481A (en) * | 2021-09-09 | 2021-12-10 | 扬州晶樱光电科技有限公司 | Overflow protection system of polycrystalline ingot furnace |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130206 Termination date: 20150803 |
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| EXPY | Termination of patent right or utility model |