CN204151459U - A kind of insulation ingot furnace - Google Patents
A kind of insulation ingot furnace Download PDFInfo
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- CN204151459U CN204151459U CN201420626391.3U CN201420626391U CN204151459U CN 204151459 U CN204151459 U CN 204151459U CN 201420626391 U CN201420626391 U CN 201420626391U CN 204151459 U CN204151459 U CN 204151459U
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- carbon felt
- fixed
- crucible
- warming plate
- radiating block
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Abstract
The utility model relates to a kind of insulation ingot furnace, comprise body of heater, crucible, well heater, support and directional freeze radiating block, body of heater comprises base and housing, well heater is fixed on the inwall of housing, support is fixedly installed on base, crucible is fixed on support, directional freeze radiating block is fixed on crucible lower surface, crucible is cube structure, the outside surface of crucible four sidewalls is each fixes a heat insulation backplate, the first carbon felt warming plate is provided with outside heat insulation backplate, directional freeze radiating block is fixed with four the second carbon felt warming plates and a 3rd carbon felt warming plate, case cover is closed and is fixed on base, four upper liner are fixed with between housing and base, two the 4th carbon felt heat preservation strips be superimposed with each other are equipped with above each upper liner, save the energy, improve the utilization ratio of silicon material.
Description
Technical field
The utility model belongs to silicon chip of solar cell and manufactures field, is specifically related to a kind of ingot furnace with heat insulation effect, belongs to photovoltaic polycrystalline cast ingot field.
Background technology
Efficient half process of smelting is unrestricted to crucible, by seed crystal induction make crystal growth evenly, dislocation desity is less, lattice defect is less, arrive the object improving efficiency of conversion, GT-HP-DSS450 type polycrystalline furnace, existing equipment carries out efficient half process of smelting ingot casting produce, seed crystal height fluctuation is larger, when silicon ingot central zone seed crystal reaches 15-20mm, silicon ingot corner regions can melt by part seed crystal, therefore for guaranteeing that whole heavy stone used as an anchor efficiently need ensure seed crystal height, silicon material utilization ratio, lower than 60%, also just adds production cost and the wasting of resources to a certain extent.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of insulation ingot furnace, has saved the energy, has improve the utilization ratio of silicon material.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of insulation ingot furnace, comprise body of heater, crucible, well heater, support and directional freeze radiating block, wherein, described body of heater comprises base and housing, described well heater is fixed on the inwall of housing, described support is inverted T-shaped structure, be fixedly installed on base, described crucible is fixed on support, described directional freeze radiating block is fixed on crucible lower surface, described crucible is cube structure, the outside surface of crucible four sidewalls is each fixes a heat insulation backplate, the first carbon felt warming plate is provided with outside described heat insulation backplate, the length of described first carbon felt warming plate is 980mm, width is 130mm, thickness is 40mm, described four the first carbon felt warming plates are interconnected by molybdenum filament, described directional freeze radiating block is fixed with four the second carbon felt warming plates and a 3rd carbon felt warming plate, the length of described second carbon felt warming plate is 973mm, width is 130mm, thickness is 45mm, be fixed on the sidewall of described directional freeze radiating block by graphite plate, described 3rd carbon felt warming plate is cylindrical structural, diameter is 480mm, thickness is 40mm, described 3rd carbon felt warming plate is fixed on the lower surface of directional freeze radiating block, described case cover is closed and is fixed on base, four upper liner are fixed with between housing and base, the width of described upper liner is 152mm, two the 4th carbon felt heat preservation strips be superimposed with each other are equipped with above described each upper liner, the length of described 4th carbon felt heat preservation strip is 1114mm, width is 64mm, thickness is 40mm.
The beneficial effects of the utility model are:
The utility model arranges the first carbon felt warming plate at crucible wall, molybdenum filament is used to be connected by these four pieces of warming plates, it can completely cut off the direct heating of well heater to seed crystal, second carbon felt warming plate can reduce the heat trnasfer of well heater to seed crystal edges, 3rd carbon felt warming plate can reduce the silicon material central zone heat loss in crucible, ensured that in ingot casting process, seed crystal corner areas temperature is suitable with seed crystal central zone temperature, thus it is smooth to realize solid-liquid face; Meanwhile, the 4th carbon felt heat preservation strip of the present utility model has 8, cooperatively interacts, add the sealing property of body of heater with upper liner, and what make to combine between base and housing is more tight, and insulated capacity have also been obtained guarantee; By ingot furnace of the present utility model and the casting ingot method that matches with it, effectively by the utilization ratio of fritting high efficient technology to more than 65-70%, saved cost, considerably increased economic benefit.
Accompanying drawing explanation
Fig. 1 is the utility model sectional view.
Fig. 2 is the utility model A-A direction schematic diagram (i.e. ingot furnace internal structure vertical view).
Fig. 3 is the utility model B-B direction schematic diagram (i.e. ingot furnace internal structure upward view).
Embodiment
A kind of insulation ingot furnace as shown in the figure, comprise body of heater 1, crucible 2, well heater 3, support 4 and directional freeze radiating block 5, wherein, described body of heater 1 comprises base 6 and housing 7, described well heater 3 is fixed on the inwall of housing 7, described support 4 is inverted T-shaped structure, be fixedly installed on base 6, described crucible 2 is fixed on support 4, described directional freeze radiating block 5 is fixed on crucible 2 lower surface, described crucible 2 is cube structure, the outside surface of crucible 2 four sidewalls is each fixes a heat insulation backplate 15, the first carbon felt warming plate 8 is provided with outside described heat insulation backplate 15, the length L1 of described first carbon felt warming plate 8 is 980mm, width M1 is 130mm, thickness H1 is 40mm, described four the first carbon felt warming plates 8 are interconnected by molybdenum filament 9, described directional freeze radiating block 5 is fixed with four the second carbon felt warming plates 10 and a 3rd carbon felt warming plate 11, the length L2 of described second carbon felt warming plate 10 is 973mm, width M2 is 130mm, thickness H2 is 45mm, be fixed on the sidewall of described directional freeze radiating block 5 by graphite plate 12, described 3rd carbon felt warming plate 11 is cylindrical structural, diameter D is 480mm, thickness H3 is 40mm, described 3rd carbon felt warming plate 11 is fixed on the lower surface of directional freeze radiating block 5, described housing 7 covers conjunction and is fixed on base 6, four upper liner 13 are fixed with between housing 7 and base 6, the width M5 of described upper liner 13 is 152mm, two the 4th carbon felt heat preservation strips 14 be superimposed with each other are equipped with above described each upper liner 13, the length L4 of described 4th carbon felt heat preservation strip 14 is 1114mm, width M4 is 64mm, thickness H4 is 40mm.
And utilizing the method for this insulation ingot furnace ingot casting to be: silicon material being broken into diameter is that the fragment of 5-11mm puts into crucible as seed crystal, utilizing well heater to carry out heating to seed crystal makes it dissolve, in the fusion stage, crucible lifts a little, seed crystal central zone temperature is made to remain on 1350-1360 degree Celsius, seed crystal is found out with quartz pushrod, as seed crystal height residue 20mm, start to be cooled to long brilliant suitable temp, in this process, seed crystal can continue to melt about 10-12mm, finally can obtain the efficient polycrystalline silicon ingot of seed crystal residual altitude at 8-10mm.
The utility model arranges the first carbon felt warming plate at crucible wall, molybdenum filament is used to be connected by these four pieces of warming plates, it can completely cut off the direct heating of well heater to seed crystal, second carbon felt warming plate can reduce the heat trnasfer of well heater to seed crystal edges, 3rd carbon felt warming plate can reduce the silicon material central zone heat loss in crucible, ensured that in ingot casting process, seed crystal corner areas temperature is suitable with seed crystal central zone temperature, thus it is smooth to realize solid-liquid face; Meanwhile, the 4th carbon felt heat preservation strip of the present utility model has 8, cooperatively interacts, add the sealing property of body of heater with upper liner, and what make to combine between base and housing is more tight, and insulated capacity have also been obtained guarantee; By ingot furnace of the present utility model and the casting ingot method that matches with it, effectively by the utilization ratio of fritting high efficient technology to more than 65-70%, saved cost, considerably increased economic benefit.
Here description of the present utility model and application is illustrative; not want by scope restriction of the present utility model in the above-described embodiments; therefore, the utility model is not by the restriction of the present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of the utility model protection.
Claims (1)
1. an insulation ingot furnace, comprise body of heater, crucible, well heater, support and directional freeze radiating block, it is characterized by, described body of heater comprises base and housing, described well heater is fixed on the inwall of housing, described support is inverted T-shaped structure, be fixedly installed on base, described crucible is fixed on support, described directional freeze radiating block is fixed on crucible lower surface, described crucible is cube structure, the outside surface of crucible four sidewalls is each fixes a heat insulation backplate, the first carbon felt warming plate is provided with outside described heat insulation backplate, the length of described first carbon felt warming plate is 980mm, width is 130mm, thickness is 40mm, described four the first carbon felt warming plates are interconnected by molybdenum filament, described directional freeze radiating block is fixed with four the second carbon felt warming plates and a 3rd carbon felt warming plate, the length of described second carbon felt warming plate is 973mm, width is 130mm, thickness is 45mm, be fixed on the sidewall of described directional freeze radiating block by graphite plate, described 3rd carbon felt warming plate is cylindrical structural, diameter is 480mm, thickness is 40mm, described 3rd carbon felt warming plate is fixed on the lower surface of directional freeze radiating block, described case cover is closed and is fixed on base, four upper liner are fixed with between housing and base, the width of described upper liner is 152mm, two the 4th carbon felt heat preservation strips be superimposed with each other are equipped with above described each upper liner, the length of described 4th carbon felt heat preservation strip is 1114mm, width is 64mm, thickness is 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626391.3U CN204151459U (en) | 2014-10-28 | 2014-10-28 | A kind of insulation ingot furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626391.3U CN204151459U (en) | 2014-10-28 | 2014-10-28 | A kind of insulation ingot furnace |
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| Publication Number | Publication Date |
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| CN204151459U true CN204151459U (en) | 2015-02-11 |
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| CN201420626391.3U Active CN204151459U (en) | 2014-10-28 | 2014-10-28 | A kind of insulation ingot furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603516A (en) * | 2016-03-14 | 2016-05-25 | 常州兆晶光能有限公司 | Heat cycling system of polycrystalline silicon ingot furnace |
| CN104294360B (en) * | 2014-10-28 | 2017-02-15 | 江苏美科硅能源有限公司 | Heat preservation ingotting furnace and application method thereof |
| CN106637394A (en) * | 2016-09-23 | 2017-05-10 | 江苏美科硅能源有限公司 | Device for achieving material floating through increasing bottom temperature of polycrystalline furnace |
| CN106702486A (en) * | 2017-03-30 | 2017-05-24 | 韩华新能源科技有限公司 | High crystal quality polysilicon ingot thermal field |
-
2014
- 2014-10-28 CN CN201420626391.3U patent/CN204151459U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294360B (en) * | 2014-10-28 | 2017-02-15 | 江苏美科硅能源有限公司 | Heat preservation ingotting furnace and application method thereof |
| CN105603516A (en) * | 2016-03-14 | 2016-05-25 | 常州兆晶光能有限公司 | Heat cycling system of polycrystalline silicon ingot furnace |
| CN106637394A (en) * | 2016-09-23 | 2017-05-10 | 江苏美科硅能源有限公司 | Device for achieving material floating through increasing bottom temperature of polycrystalline furnace |
| CN106702486A (en) * | 2017-03-30 | 2017-05-24 | 韩华新能源科技有限公司 | High crystal quality polysilicon ingot thermal field |
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