CN205474104U - A exempt from spraying baffle for crucible top - Google Patents
A exempt from spraying baffle for crucible top Download PDFInfo
- Publication number
- CN205474104U CN205474104U CN201620087177.4U CN201620087177U CN205474104U CN 205474104 U CN205474104 U CN 205474104U CN 201620087177 U CN201620087177 U CN 201620087177U CN 205474104 U CN205474104 U CN 205474104U
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- CN
- China
- Prior art keywords
- high temperature
- temperature resistant
- crucible
- curb plate
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an exempt from spraying baffle for crucible top, including baffle body and high temperature resistant pad group, the baffle body include the curb plate and with the perpendicular diaphragm that is used for covering the crucible wall top of being connected of curb plate, the one end of diaphragm be connected with the curb plate, the other end of diaphragm with high temperature resistant pad group link, high temperature resistant pad group and curb plate cooperation with the diaphragm clamp on crucible wall, high temperature resistant pad group including a plurality of along diaphragm borders distribute and with curb plate parallel arrangement's high temperature resistant pad unit, the curb plate of curb plate on the threaded hole that distributes. The utility model discloses not only can save thick liquids, the coating that can avoid taking place the crucible top moreover drops and gets into the quality of the condition that forms stereoplasm point in the silicon liquid, improvement ingot casting.
Description
Technical field
This utility model relates to one and relates to polycrystalline silicon ingot casting device, the popular device of a kind of polycrystalline silicon ingot or purifying furnace.
Background technology
This utility model belong to photovoltaic industry ingot casting crucible spraying field, relate to a kind of for crucible top exempt from spray baffle plate.
Background technology
At present, photovoltaic cell is based on polycrystalline cast ingot, and directional solidification technique is widely used as the preparation method of polycrystalline solar silicon chip.In directional solidification, crucible used needs to be coated in quartz crucible surface with silicon nitride powder pulp spraying before charging and forms coating, making silicon liquid and crucible isolation, in stoping crucible, impurity enters in silicon ingot, reduces again viscous crucible leakage silicon dangerous, but when spraying, crucible top must all spray, and so can waste slurry, and coating height and thickness are all easily caused coating shedding, the coating come off enters and causes in silicon liquid forming Hard Inclusion during long crystalline substance, reduces the quality of ingot casting.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, propose a kind of for crucible top exempt from spray baffle plate, this baffle plate can not only save slurry, and it can be avoided that occur the coating shedding of crucible top to enter the situation forming Hard Inclusion in silicon liquid, improves the quality of ingot casting.
The technical problems to be solved in the utility model is achieved through the following technical solutions.This utility model be a kind of for crucible top exempt from spray baffle plate, its feature is: include baffle body and high temperature resistant pad group, described baffle body includes side plate and the transverse slat that be connected to cover sidewall of crucible top vertical with side plate, one end of described transverse slat is connected with side plate, the other end of transverse slat is connected with described high temperature resistant pad group, and described high temperature resistant pad group coordinates with side plate and is clipped on sidewall of crucible by transverse slat；Described high temperature resistant pad group includes some high temperature resistant single pad units being distributed and be arranged in parallel with side plate along transverse slat edge；Screwed hole is distributed on the side plate of described side plate.
A kind of exempting from spraying baffle technology scheme for crucible top of this utility model, further preferred technical scheme feature is: be provided with gap between described adjacent high temperature resistant single pad unit.
A kind of exempting from spraying baffle technology scheme for crucible top of this utility model, further preferred technical scheme feature is: the material of described high temperature resistant single pad unit is the nonmetallic materials that fusing point is higher than 1200 DEG C.
A kind of exempting from spraying baffle technology scheme for crucible top of this utility model, further preferred technical scheme feature is: described nonmetallic materials are boron carbide or carborundum.
Compared with prior art, this utility model has the following technical effect that: operator are when to crucible spraying, crucible top serosity can be sprayed on baffle plate, without falling at crucible top, so can be prevented effectively from Silicon Nitride and be sprayed on crucible top, reduce coating shedding, reduce silico briquette head Hard Inclusion, and can effectively reduce silicon nitride powder consumption, reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation being installed on crucible of the present utility model.
Detailed description of the invention
Referring to the drawings, concrete technical scheme of the present utility model is further described, in order to those skilled in the art is further understood that this utility model, and does not constitute the restriction of its power.
Embodiment 1, see figures.1.and.2, a kind of for crucible top exempt from spray baffle plate, including baffle body and high temperature resistant pad group, described baffle body includes side plate 1 and the transverse slat 2 that be connected to cover sidewall of crucible top vertical with side plate 1, one end of described transverse slat 2 is connected with side plate 1, and the other end of transverse slat 2 is connected with described high temperature resistant pad group, and described high temperature resistant pad group coordinates with side plate 1 and is clipped on sidewall of crucible by transverse slat 2；Described high temperature resistant pad group includes some high temperature resistant single pad units 4 being distributed along transverse slat 2 edge and be arrangeding in parallel with side plate 1, it is provided with gap between adjacent high temperature resistant single pad unit 4, the material of high temperature resistant single pad unit 4 is the nonmetallic materials that fusing point is higher than 1200 DEG C, and nonmetallic materials can be boron carbide or carborundum or carborundum；Screwed hole 3 is distributed on the side plate 1 of described side plate 1.Baffle body is also adopted by the fusing point exotic material higher than 1200 DEG C and makes, and can select metal or nonmetallic materials.
Operation principle of the present utility model: when in use, four sidewalls of crucible are all placed and exempts to spray baffle plate, to exempt to spray baffle plate and tip upside down on crucible wall top, transverse slat is covered in the upper surface of crucible wall 6, side plate 1 and high temperature resistant pad group lay respectively at the inner side and outer side of crucible wall, side plate 1 and high temperature resistant pad cooperate to transverse slat Horizontal limiting, can also be by installing screw 5 and nut on screwed hole 3, making screw produce frictional force with crucible wall, the position that so can make transverse slat is more stable.
Claims (4)
1. one kind for crucible top exempt from spray baffle plate, it is characterized in that: include baffle body and high temperature resistant pad group, described baffle body includes side plate and the transverse slat that be connected to cover sidewall of crucible top vertical with side plate, one end of described transverse slat is connected with side plate, the other end of transverse slat is connected with described high temperature resistant pad group, and described high temperature resistant pad group coordinates with side plate and is clipped on sidewall of crucible by transverse slat；Described high temperature resistant pad group includes some high temperature resistant single pad units being distributed and be arranged in parallel with side plate along transverse slat edge；Screwed hole is distributed on the side plate of described side plate.
The most according to claim 1 for crucible top exempt from spray baffle plate, it is characterised in that: be provided with gap between described adjacent high temperature resistant single pad unit.
The most according to claim 1 and 2 for crucible top exempt from spray baffle plate, it is characterised in that: the material of described high temperature resistant single pad unit is the nonmetallic materials that fusing point is higher than 1200 DEG C.
The most according to claim 3 for crucible top exempt from spray baffle plate, it is characterised in that: described nonmetallic materials are boron carbide or carborundum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087177.4U CN205474104U (en) | 2016-01-29 | 2016-01-29 | A exempt from spraying baffle for crucible top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087177.4U CN205474104U (en) | 2016-01-29 | 2016-01-29 | A exempt from spraying baffle for crucible top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205474104U true CN205474104U (en) | 2016-08-17 |
Family
ID=56620191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620087177.4U Expired - Fee Related CN205474104U (en) | 2016-01-29 | 2016-01-29 | A exempt from spraying baffle for crucible top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205474104U (en) |
-
2016
- 2016-01-29 CN CN201620087177.4U patent/CN205474104U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170129 |