CN202786502U - Combined cover plate for polycrystalline ingot casting furnace - Google Patents
Combined cover plate for polycrystalline ingot casting furnace Download PDFInfo
- Publication number
- CN202786502U CN202786502U CN 201220374244 CN201220374244U CN202786502U CN 202786502 U CN202786502 U CN 202786502U CN 201220374244 CN201220374244 CN 201220374244 CN 201220374244 U CN201220374244 U CN 201220374244U CN 202786502 U CN202786502 U CN 202786502U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- polycrystalline ingot
- ingot casting
- casting furnace
- stiffening web
- 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 - Lifetime
Links
Images
Landscapes
- Silicon Compounds (AREA)
Abstract
The utility model relates to a combined cover plate for a polycrystalline ingot casting furnace, which is mainly applied in a process of producing polycrystalline silicon ingots in the solar industry. The combined cover plate for the polycrystalline ingot casting furnace comprises a connecting cover plate and is characterized in that the connecting cover plate is a C/C composite plate with the thickness of 3 millimeters, and reinforcing ribs made of graphite are arranged below the connecting cover plate. The combined cover plate has the beneficial effects that the cost is reduced by adopting the thin C/C cover plate, and the strength of the C/C cover plate is ensured through the reinforcing ribs.
Description
Technical field
The utility model relates to a kind of polycrystalline ingot furnace combination plate, is mainly used in the process of photovoltaic industry production polycrystal silicon ingot.
Background technology
At present, in the process of photovoltaic industry production polycrystal silicon ingot, adopt the production technique of directional freeze purification silicon ingot, the equipment that adopts is called polycrystalline ingot furnace; When producing polycrystal silicon ingot, need to be heated to the silicon material and make its fusing more than 1420 ℃, then carry out directional freeze.Well heater is distributed with four sides heating, two kinds of heat forms of five heating (side adds top firing) in the polycrystalline thermal field.When adopting five heating, when the top arranges well heater, need to place the CC cover plate on plumbago crucible top, prevent that top heater from because damage enters in the crucible after dropping, stopping that simultaneously a part of impurity enters in the silicon liquid, and then the quality of lifting polysilicon, the thickness of CC cover plate is generally 7mm, because CC cover plate cost is high, the possibility that the while top heater drops is not very large, how when guaranteeing the effect of CC cover plate, to reduce cost, become the direction that the technician makes great efforts to study.
Summary of the invention
In order to remedy the deficiencies in the prior art, the utility model provides a kind of can save the combination plate that cost can satisfy again service requirements.
The utility model is achieved by the following technical solution:
A kind of polycrystalline ingot furnace combination plate comprises the connection cover plate, it is characterized in that: described connection cover plate adopts the thick C/C composite panel of 3 mm, connect cover plate below be provided with the stiffening web of graphite material.
Combination plate of the present utility model is by adopting thinner C/C composite panel as connecting cover plate, in order to guarantee strength of joint, and is provided with the stiffening web of graphite material below connecting cover plate.
In order to guarantee that connecting cover plate all can satisfy service requirements at length direction and width, described stiffening web is that # word shape distributes; For the convenient stiffening web of installing, stiffening web be connected cover plate and connect by screw bolt and nut.
The beneficial effects of the utility model are to reduce cost by adopting thinner CC cover plate, and guarantee the intensity of CC cover plate by stiffening web is set; Simultaneously not fragile because of stiffening web, reduced maintenance cost, only need to change thinner this layer C/C cover plate.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the vertical view of Fig. 1;
Among the figure, 1, connect cover plate, 2, stiffening web, 3, bolt, 4, nut.
Embodiment
Embodiment below by indefiniteness also is further described the utility model by reference to the accompanying drawings:
Accompanying drawing is a kind of specific embodiment of the present utility model, comprise and connect cover plate 1, it is characterized in that: described connection cover plate 1 adopts the thick C/C composite panel of 3 mm (also can adopt the C/C composite panel to make), be provided with the stiffening web 2 of graphite material below the connection cover plate 1, described stiffening web 2 distributes (also can adopt other decoration form) for # word shape, described stiffening web 2 be connected cover plate and pass through bolt 3 and are connected connection with nut.
When making the novel cover plate of this use, connecting cover plate is the thick C/C composite panel of 3mm, and two graphite stiffening webs that 15mm is thick are set along its length in the above, being divided into two at width with six thick graphite stiffening webs of 15mm arranges and puts, making the stiffening web of length direction and width be the well formula is distributed on the base plate, then pass connection cover plate 1 and stiffening web 2 precession nuts 4 with bolt 3, connect cover plate 1 and become one with stiffening web.
Claims (3)
1. a polycrystalline ingot furnace combination plate comprises connecting cover plate (1), it is characterized in that: the stiffening web (2) that is provided with graphite material below the thick C/C composite panel of described connection cover plate (1) employing 3 mm, connection cover plate (1).
2. polycrystalline ingot furnace combination plate according to claim 1 is characterized in that: described stiffening web (2) distributes for # word shape.
3. polycrystalline ingot furnace combination plate according to claim 1 is characterized in that: described stiffening web (2) be connected cover plate (1) and be connected 4 by bolt (3) with nut) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374244 CN202786502U (en) | 2012-07-31 | 2012-07-31 | Combined cover plate for polycrystalline ingot casting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374244 CN202786502U (en) | 2012-07-31 | 2012-07-31 | Combined cover plate for polycrystalline ingot casting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202786502U true CN202786502U (en) | 2013-03-13 |
Family
ID=47813798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220374244 Expired - Lifetime CN202786502U (en) | 2012-07-31 | 2012-07-31 | Combined cover plate for polycrystalline ingot casting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202786502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326447A (en) * | 2017-08-11 | 2017-11-07 | 晶科能源有限公司 | Crucible cover plate |
-
2012
- 2012-07-31 CN CN 201220374244 patent/CN202786502U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326447A (en) * | 2017-08-11 | 2017-11-07 | 晶科能源有限公司 | Crucible cover plate |
| CN107326447B (en) * | 2017-08-11 | 2020-04-07 | 晶科能源有限公司 | Crucible cover plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104195634B (en) | Large scale silicon ingot polycrystalline ingot furnace thermal field structure | |
| CN102162125B (en) | Thermal field structure of polysilicon ingot casting furnace | |
| CN102925971B (en) | High-efficiency polycrystalline ingot casting thermal field | |
| CN205329210U (en) | Polysilicon ingoting furnace | |
| CN202390560U (en) | Large-capacity polysilicon ingot furnace thermal field structure | |
| CN204108252U (en) | A kind of heavy slab ESR ingot stay-warm case | |
| CN202786502U (en) | Combined cover plate for polycrystalline ingot casting furnace | |
| CN206486622U (en) | A kind of device that G7 polycrystal silicon ingots are cast for GT polycrystalline furnaces | |
| CN201165563Y (en) | Graphitic heater for polysilicon casting ingot technology | |
| CN204898124U (en) | Polycrystalline silicon ingot casting is with purification stove | |
| CN201942777U (en) | Graphite crucible assemble for polycrystalline ingot furnace | |
| CN202107794U (en) | Polycrystalline furnace with detective device for preventing accidental fire striking | |
| CN204111924U (en) | A kind of large size silicon ingot polycrystalline ingot furnace Novel hot field structure | |
| CN202688507U (en) | Upper-lower spliced polycrystalline graphite crucible | |
| CN204434771U (en) | A kind of crucible of polycrystalline silicon ingot furnace guard plate apparatus | |
| CN207079301U (en) | Polycrystalline silicon ingot casting and ingot single crystal crucible | |
| CN207811931U (en) | A kind of crucible guard boards device of quasi- G7 ingot castings thermal field | |
| CN204251766U (en) | A kind of insulation construction of crystalline silicon ingot casting furnace thermal field | |
| CN206652686U (en) | A kind of high-purity brushing Special support platform | |
| CN202131104U (en) | Bell jar and chassis of polycrystalline silicon reduction furnace | |
| CN201942784U (en) | Thermal field device applicable to 20inch silicon single crystal growth in straight pulling method | |
| CN207537596U (en) | A kind of polycrystalline silicon ingot or purifying furnace | |
| CN104109903A (en) | Recyclable quartz ceramic crucible for polycrystalline silicon ingot and preparation method of quartz ceramic crucible | |
| CN205774922U (en) | A kind of polycrystalline silicon ingot or purifying furnace heater | |
| CN203096226U (en) | Directionally solidified graphite block for polycrystalline ingot furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |