CN101158548A - Oven shell protecting equipment of polycrystalline silicon ingot furnace - Google Patents
Oven shell protecting equipment of polycrystalline silicon ingot furnace Download PDFInfo
- Publication number
- CN101158548A CN101158548A CNA2007100705375A CN200710070537A CN101158548A CN 101158548 A CN101158548 A CN 101158548A CN A2007100705375 A CNA2007100705375 A CN A2007100705375A CN 200710070537 A CN200710070537 A CN 200710070537A CN 101158548 A CN101158548 A CN 101158548A
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- heater
- furnace body
- sleeve pipe
- polycrystalline silicon
- silicon ingot
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Abstract
A furnace body protection device for a polysilicon ingot casting furnace belongs to the field of technology of manufacturing a polysilicon ingot casting furnace and comprises a furnace body (9) with an intermediate inter layer (11), a lug boss casing (10) positioned at the bottom of the furnace body (9), a mineral wool (5), a casing (8) position at the upper part of the mineral wool (5) and fixed on the lug boss casing (10), with an end cover (7) arranged on the casing, and a protecting pipe (6) positioned at the middle part of the end cover (7). The invention has the advantages that the furnace body protection device comprising the mineral wool, the lug boss casing and the casing with the end cover assures an avoidance of an injury of silicon liquid to the furnace body brought by an occurring of catastrophic accidence caused by an exposure of cooling water within a high-temperature and low-pressure furnace when the steel board of the furnace body is penetrated by the heat of high-temperature silicon liquid overflowed to the bottom of the furnace body and accumulated at the bottom of the furnace body, caused by a fracture of a crucible holding the silicon liquid or by other reasons.
Description
Technical field
The present invention relates to a kind of body of heater protective device of polycrystalline silicon ingot or purifying furnace, belong to the manufacturing technology field of polycrystalline silicon ingot or purifying furnace.
Background technology
Silicon is the common a kind of chemical element of nature, and 1414 ℃ of pure silicon fusing points are used for solar-grade polysilicon purity generally more than 99.99%.Polycrystalline silicon ingot or purifying furnace is a kind of professional silicon remelting device, is used to produce a large amount of qualified solar energy polycrystalline silicon ingot castings.Owing to relate to the melting environment of high-temperature low-pressure, therefore, safety is most important in the actual production! And polysilicon silicon hydrorrhea flow phenomenon can occur unavoidably in production technology links such as fusing, crystallization, and how to handle is an important technology of support equipment and personal safety.And existing polycrystalline silicon ingot or purifying furnace is because the deficiency on the structural design is difficult to satisfy production requirement.
Summary of the invention
The object of the present invention is to provide a kind of reasonable in designly, easy to use, can effectively avoid the body of heater protective device of silicon liquid the polycrystalline silicon ingot or purifying furnace of body of heater damage.
The present invention is the body of heater protective device of polycrystalline silicon ingot or purifying furnace, comprises body of heater, it is characterized in that the bottom of body of heater is provided with boss sleeve pipe and rock wool, and the top of rock wool is provided with the sleeve pipe that is fixed in band edge lid on the boss sleeve pipe.
The middle part of described end cap also can be provided with protecting pipe.
Described sleeve pipe and boss sleeve pipe can be fixed by threaded connection.
Described sleeve pipe, end cap, the material of protecting pipe can be high purity graphite, can guarantee to have good high-temperature stability.
The material of described boss sleeve pipe and body of heater can be stainless steel.
The bottom of described body of heater also can be provided with intermediate course, can further improve the heat radiation cooling effect of body of heater.
The present invention is reasonable in design; effect by the body of heater protective device that constitutes by the sleeve pipe of rock wool, boss sleeve pipe, band edge lid etc.; the crucible that can effectively prevent to take up silicon liquid is breaking or other reason when causing the silicon hydrorrhea to go out; the silicon liquid that flows to bottom of furnace body is piled up at bottom of furnace body; high temperature silicon liquid heat energy burns the body of heater steel plate, thereby the phenomenon that causes catastrophic failure takes place.Avoided of the damage of silicon liquid to body of heater.
Description of drawings
Fig. 1 is an overall structure cutaway view of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of A part shown in Figure 1;
The structure cutaway view of Fig. 3 during for user mode of the present invention.
The specific embodiment
Mainly by the body of heater 9 of band intermediate course 11, the boss sleeve pipe 10 and the rock wool 5 that place body of heater 9 bottoms place rock wool 5 tops to be fixed in the sleeve pipe 8 of band edge lid 7 on the boss sleeve pipe 10, place protecting pipe 6 formations such as grade at end cap 7 middle parts in the present invention; Sleeve pipe 8 is fixed by threaded connection with boss sleeve pipe 10.The material of sleeve pipe 8, end cap 7, protecting pipe 6 is a high purity graphite, and boss sleeve pipe 10 is a stainless steel with the material of body of heater 9.
Under the normal operation, be a high-temperature low-pressure, high clean working environment in the body of heater 9, never allow cooling water in stove, to seep water by any way.Fixing end cap 7 above the sleeve pipe 8, porose in the middle of the end cap 7, inserting a protecting pipe 6, protecting pipe 6 passes the thermal-insulation baffle plate 4 in the body of heater 9 and exceeds its surperficial certain distance, and protecting pipe 6 hollows are therefrom passed to make things convenient for other parts in the body of heater 9.Sleeve pipe 8 is tightened its end face of back with boss sheath 10 by screw thread and is withheld on the high temperature resistant rock wool 5 that is laid on body of heater 9 bottoms.All these constitute a cover protective device together; to be exactly the silica crucible 1 that prevents to take up silicon liquid breaking or other reason when causing the silicon hydrorrhea to go out its purpose; the silicon liquid that flows to bottom of furnace body is piled up in body of heater 9 bottoms; high temperature silicon liquid heat energy burns the body of heater steel plate; cooling water is exposed in the stove of high-temperature low-pressure, thereby causes catastrophic failure.
During use, silica crucible 1 placed be positioned over then in the graphite crucible 2 on the heat exchange platform 3, raw material silicon 12 is heated fusing in silica crucible 1.When crackle appears in silica crucible 1; silicon liquid is inevitable along the slit between graphite crucible 2 and the silica crucible 1; press the direction of arrow shown in the accompanying drawing 3 toward dirty; accumulate in around the protecting pipe 6 at thermal-insulation baffle plate 4 middle parts and around the sleeve pipe 8 and end cap 7 of bottom of furnace body; boss sheath 10 and body of heater 9 are played the insulation blocking effect, avoided high temperature silicon liquid directly to contact and the damage that causes with the body of heater stainless steel.When silicon liquid after being cooled to solid shape 13 fully around protecting pipe 6 and the sleeve pipe 8, open body of heater 9, graphite device and other parts such as the sleeve pipe 8 that removable parts damage, end cap 7, protecting pipe 6 can put into production once more.
Claims (6)
1. the body of heater protective device of a polycrystalline silicon ingot or purifying furnace comprises body of heater (9), it is characterized in that the bottom of body of heater (9) is provided with boss sleeve pipe (10) and rock wool (5), and the top of rock wool (5) is provided with is fixed in the sleeve pipe (8) that boss sleeve pipe (10) is gone up band edge lid (7).
2. by the body of heater protective device of the described polycrystalline silicon ingot or purifying furnace of claim 1, it is characterized in that the middle part of described end cap (7) also is provided with protecting pipe (6).
3. by the body of heater protective device of the described polycrystalline silicon ingot or purifying furnace of claim 1, it is characterized in that described sleeve pipe (8) and boss sleeve pipe (10) are fixed by threaded connection.
4. by the body of heater protective device of claim 1 or 2,3 described polycrystalline silicon ingot or purifying furnaces, it is characterized in that described sleeve pipe (8), end cap (7), the material of protecting pipe (6) is a high purity graphite.
5. by the body of heater protective device of the described polycrystalline silicon ingot or purifying furnace of claim 1, it is characterized in that the described boss sleeve pipe (10) and the material of body of heater (9) are stainless steel.
6. by the body of heater protective device of the described polycrystalline silicon ingot or purifying furnace of claim 1, it is characterized in that the bottom of described body of heater (9) also is provided with intermediate course (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100705375A CN101158548A (en) | 2007-08-23 | 2007-08-23 | Oven shell protecting equipment of polycrystalline silicon ingot furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100705375A CN101158548A (en) | 2007-08-23 | 2007-08-23 | Oven shell protecting equipment of polycrystalline silicon ingot furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101158548A true CN101158548A (en) | 2008-04-09 |
Family
ID=39306716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100705375A Pending CN101158548A (en) | 2007-08-23 | 2007-08-23 | Oven shell protecting equipment of polycrystalline silicon ingot furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101158548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781795A (en) * | 2010-03-04 | 2010-07-21 | 北京中联阳光科技有限公司 | Silicon leakage prevention device for polysilicon ingot furnace or polysilicon purification furnace |
| CN106012004A (en) * | 2016-06-20 | 2016-10-12 | 山西中电科新能源技术有限公司 | Overflowing isolation device for polysilicon ingot furnace |
-
2007
- 2007-08-23 CN CNA2007100705375A patent/CN101158548A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781795A (en) * | 2010-03-04 | 2010-07-21 | 北京中联阳光科技有限公司 | Silicon leakage prevention device for polysilicon ingot furnace or polysilicon purification furnace |
| CN106012004A (en) * | 2016-06-20 | 2016-10-12 | 山西中电科新能源技术有限公司 | Overflowing isolation device for polysilicon ingot furnace |
| CN106012004B (en) * | 2016-06-20 | 2018-05-04 | 山西中电科新能源技术有限公司 | A kind of overflow isolating device of polycrystalline silicon ingot or purifying furnace |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |