CN202688510U - Abnormal polycrystalline graphite lateral heater - Google Patents
Abnormal polycrystalline graphite lateral heater Download PDFInfo
- Publication number
- CN202688510U CN202688510U CN 201220287387 CN201220287387U CN202688510U CN 202688510 U CN202688510 U CN 202688510U CN 201220287387 CN201220287387 CN 201220287387 CN 201220287387 U CN201220287387 U CN 201220287387U CN 202688510 U CN202688510 U CN 202688510U
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- hot
- polycrystalline graphite
- plate
- well heater
- abnormal
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Abstract
The utility model provides an abnormal polycrystalline graphite lateral heater which comprises a plurality of heating plates and is characterized in that the front and back faces of end portions of the heating plates are provided with connection steps. The abnormal polycrystalline graphite lateral heater can achieve exchangeable face use, reduces accumulation of deformation so that stability of the heating plates is improved and service life of the heating plates is prolonged.
Description
Technical field
The utility model relates to the graphite heater technical field, particularly relates to a kind of square polycrystalline ingot furnace graphite heater that is applicable to.
Background technology
The production technique of silicon for solar cell mainly contains pulling of silicon single crystal and polycrystalline cast ingot silicon at present, and polycrystalline cast ingot comparatively speaking technique is comparatively simple, is easy to large-scale production, and cost is lower.Polycrystalline cast ingot silicon is the method that adopts directional freeze, its principle is that the silicon stockpile is placed in the quartz crucible, quartz crucible is placed in the plumbago crucible that is spliced into by four blocks of plumbago crucible side plates and plumbago crucible base plate, integral body places thermal field heating and melting silicon material, then control longitudinally the temperature difference and cool off gradually, go into columnar silicon crystalline structure from bottom to top.
Graphite material is widely used in the polycrystalline ingot furnace thermal field owing to have the advantages such as excellent thermostability, processibility, intensity, price.
As Figure 1-3, the general side of existing polycrystalline silicon ingot or purifying furnace forms the side heat system of square by four hot-plates 1, and every side hot-plate 1 opened 2, four jiaos of step surfaces and linked to each other with the bight web plate at two ends.Wherein three hot-plates respectively have a lifting plate 3 to be attached thereto, and lifting plate 3 the other ends are drawn three electrodes 4 and joined three phase supply with outside copper electrode.The silicon material charging capacity that requires that is accompanied by the production capacity raising constantly increases, and the hot-plate problem on deformation highlights gradually, and hot-plate produces directional deformation after through heating and cooling repeatedly.Traditional hot-plate can not change face and use, and distortion is constantly cumulative, finally causes product rejection.
The utility model content
The purpose of this utility model is to propose a kind of special-shaped polycrystalline graphite side well heater, and its side hot-plate can be realized changing face and use, and it is cumulative to reduce its distortion, thereby increases the work-ing life of hot-plate.
The utility model proposes a kind of special-shaped polycrystalline graphite side well heater, comprise a plurality of hot-plates, it is characterized in that the tow sides of described hot-plate end all have the connection step.
More preferably, the degree of depth of described connection step is 2-10mm.
More preferably, four hot-plates form a cover well heater.
More preferably, a plurality of hot-plates connect by the bight web plate.
More preferably, wherein three hot-plates have the lifting plate, draw three electrodes.
The side hot-plate of the utility model abnormity polycrystalline graphite side well heater can be realized changing face and use, and it is cumulative to reduce its distortion, thereby increases stability and the work-ing life of hot-plate.
Description of drawings
Can describe in detail and appended graphic being further understood by following utility model about advantage of the present utility model and spirit.
Fig. 1 is existing special-shaped polycrystalline graphite heater structure synoptic diagram;
Fig. 2 is existing special-shaped polycrystalline graphite side heating board structure synoptic diagram;
Fig. 3 is existing special-shaped polycrystalline graphite side hot-plate side-looking structure iron;
Fig. 4 is the utility model abnormity polycrystalline graphite side hot-plate side-looking structure iron.
Embodiment
Describe specific embodiment of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 4, the pros and cons at the two ends, the left and right sides of the side hot-plate 1 of the utility model abnormity polycrystalline graphite well heater respectively mills the step surface 5 of a dark 4mm, has realized that by the electrode connecting hole position of adjusting the lifting plate side hot-plate changes face and uses again.A face is changed in the every use of hot-plate after one month, preferably resolve side hot-plate premature deformations problem, stability and the work-ing life of having improved hot-plate.By the trial state of statistics feedback, the mean lifetime of hot-plate has improved 20%.
Described in this specification sheets is preferred embodiment of the present utility model, and above embodiment is only in order to the technical solution of the utility model to be described but not to restriction of the present utility model.All those skilled in the art comply with design of the present utility model by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within scope of the present utility model.
Claims (5)
1. a special-shaped polycrystalline graphite side well heater comprises a plurality of hot-plates, it is characterized in that the tow sides of described hot-plate end all have the connection step.
2. special-shaped polycrystalline graphite side well heater as claimed in claim 1, the degree of depth that it is characterized in that described connection step is 2-10mm.
3. special-shaped polycrystalline graphite side well heater as claimed in claim 1 is characterized in that four hot-plates form a cover well heater.
4. special-shaped polycrystalline graphite side well heater as claimed in claim 1 is characterized in that described a plurality of hot-plate connects by the bight web plate.
5. special-shaped polycrystalline graphite side well heater as claimed in claim 1 is characterized in that wherein three hot-plates have the lifting plate, draws three electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287387 CN202688510U (en) | 2012-06-19 | 2012-06-19 | Abnormal polycrystalline graphite lateral heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287387 CN202688510U (en) | 2012-06-19 | 2012-06-19 | Abnormal polycrystalline graphite lateral heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688510U true CN202688510U (en) | 2013-01-23 |
Family
ID=47544157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287387 Expired - Lifetime CN202688510U (en) | 2012-06-19 | 2012-06-19 | Abnormal polycrystalline graphite lateral heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372401A (en) * | 2013-08-12 | 2015-02-25 | 晶科能源有限公司 | Ingot furnace and side heater component of ingot furnace |
-
2012
- 2012-06-19 CN CN 201220287387 patent/CN202688510U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372401A (en) * | 2013-08-12 | 2015-02-25 | 晶科能源有限公司 | Ingot furnace and side heater component of ingot furnace |
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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: 20130123 |