CN205999511U - A kind of polycrystalline ingot furnace improving thermal field performance - Google Patents
A kind of polycrystalline ingot furnace improving thermal field performance Download PDFInfo
- Publication number
- CN205999511U CN205999511U CN201620933146.6U CN201620933146U CN205999511U CN 205999511 U CN205999511 U CN 205999511U CN 201620933146 U CN201620933146 U CN 201620933146U CN 205999511 U CN205999511 U CN 205999511U
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- heat
- insulation
- warming plate
- thermal field
- graphite
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Abstract
A kind of polycrystalline ingot furnace improving thermal field performance, including ingot furnace furnace wall, it is provided with two groups of heat-insulation cage warming plates being parallel to each other in described ingot furnace furnace wall, described heat-insulation cage warming plate is provided with horizontal groove, heat-insulation cage warming plate upper end is provided with insulation top board, it is equipped with the different graphite insulation board of four block sizes, described graphite insulation board is fixed on heat-insulation cage warming plate through graphite screw rod inside every piece of heat-insulation cage warming plate.This utility model decreases deposition in thermal field for the impurity such as oxide, during making polycrystalline cast ingot, air-flow is more smooth, thus reducing the generation of silicon ingot impurity, the effect improving silicon ingot quality can be played in practice, silicon ingot earning rate can be improved and reach 1 2%, and thermal field accessory service life was extended to 3 years by 1 year by this device, thus reducing equipment part cost.
Description
Technical field
This utility model is related to a kind of polycrystalline ingot furnace improving thermal field performance.
Background technology
During polycrystalline ingot furnace uses, while high-temperature heating fusing silicon material, being passed through argon increases silicon liquid impurities removal performance.Many
Crystal silicon material during ingot casting, generation containing miscellaneous silicon steam pass through graphite protective plate on along breach discharge, be deposited directly to original
Above thermal field warming plate, on one side warming plate, oxide impurity is more, Ingot quality is affected larger；Another aspect high temperature silicon
Steam is very serious to solidification carbon felt warming plate corrosion in thermal field, and general thermal field service life can only ensure 1 year about, makes
Shorter with the life-span, warming plate needs to regularly replace, and changes thermal field material and will greatly increase enterprise's manufacturing cost.
Utility model content
Its purpose of this utility model is that a kind of polycrystalline ingot furnace improving thermal field performance of offer, solves existing ingot casting
Stove heat-insulation cage warming plate aoxidizes, oxide shedding in running, causes Ingot quality to decline, service life is shorter, warming plate
Need to regularly replace, increased enterprise's manufacturing cost, lead to the problem that earning rate reduces, it is miscellaneous that this utility model decreases oxide etc.
Deposition in thermal field for the matter, during making polycrystalline cast ingot, air-flow is more smooth, thus reducing the generation of silicon ingot impurity, in actual fortune
With the middle effect that can play and improve silicon ingot quality, it is possible to increase silicon ingot earning rate reaches 1-2%, and thermal field accessory is used by this device
The time limit extended to 3 years by 1 year, thus reducing equipment part cost.
The technical scheme realized above-mentioned purpose and take, including ingot furnace furnace wall, is provided with two groups in described ingot furnace furnace wall
The heat-insulation cage warming plate being parallel to each other, described heat-insulation cage warming plate is provided with horizontal groove, and heat-insulation cage warming plate upper end is provided with guarantor
Warm top board, is equipped with the different graphite insulation board of four block sizes, described graphite insulation board is through stone inside every piece of heat-insulation cage warming plate
Black screw rod is fixed on heat-insulation cage warming plate.
Beneficial effect
Compared with prior art this utility model has advantages below.
1. transformed by thermal-field device, change structure and the material of former warming plate, new equipment has finely fine and close knot
Structure feature, the relatively low and excellent thermal shock resistance of thermal coefficient of expansion；
2. the oxide etch of silicon steam and the internal warming plate of expellant gas impurity in production process can be reduced, extend solid
Change the service life of carbon felt warming plate；
3. smooth material surface can reduce the absorption to impurity, reduces friction, effectively reduces impurity content in silicon ingot
Thus improve quality；
4. energy efficient, graphite material, with respect to carbon felt material, more Proximate blackbody material, can absorb the radiation of outside in a large number
Energy, can give off self-energy simultaneously in a large number；
5. apparatus structure is simple and reliable, long service life, does not affect polycrystalline ingot furnace normal work, workable, fits
Close high-volume to promote the use of.
Brief description
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is graphite insulation board structural representation in this utility model.
Specific embodiment
This device includes ingot furnace furnace wall 1, as shown in Figure 1 and Figure 2, is provided with two groups and is parallel to each other in described ingot furnace furnace wall 1
Heat-insulation cage warming plate 3, described heat-insulation cage warming plate 3 is provided with horizontal groove 6, and heat-insulation cage warming plate 3 upper end is provided with insulation top
Plate 2, is equipped with the different graphite insulation board of four block sizes 4 inside every piece of heat-insulation cage warming plate 3, described graphite insulation board 4 is through stone
Black screw rod 5 is fixed on heat-insulation cage warming plate 3.
Described graphite insulation board 4 is high-purity static pressure graphite material.
This utility model digs the groove of 5mm on the carbon felt heat-insulation cage warming plate 3 in ingot furnace thermal field, then adopts size
Four pieces of different thickness are installed on one of internal four faces of heat-insulation cage face for 5mm high-purity static pressure graphite insulation board 4, its
In take 1. be 656*120mm graphite insulation board 4 be used for upper left quarter is installed, take 2. be 470*120mm graphite insulation board 4 be used for
Upper right quarter is installed, takes the 3. graphite insulation board 4 for 656*380mm to be used for lower left quarter is installed, take the 4. graphite for 470*380mm to protect
Warm plate 4 is used for installing right lower quadrant, and heat-insulation cage other three faces internal are all so installed, and each graphite insulation board 4 is respectively provided with out
Tapping process is simultaneously done in hole site, is installed on the heat-insulation cage warming plate 2 within heat-insulation cage with M8 graphite screw rod 5.
This utility model is due to changing structure and the material of former warming plate, compared with common solidification carbon felt, improved
Inside holding plate fine structure is fine and close, and uniformity is good, and thermal coefficient of expansion is relatively low, has excellent thermal shock resistance and corrosion resistance,
The corrosion to solidification carbon felt plate for the oxide impurity can be reduced, the common thermal field accessory life-span can be made in practice to increase by 3 times
More than, reduce the purpose of thermal field member replacing cost.In addition, this device decreases the impurity such as oxide sinking in thermal field
Long-pending, during making polycrystalline cast ingot, air-flow is more smooth, thus reducing the generation of silicon ingot impurity, can play raising in practice
The effect of silicon ingot quality, it is possible to increase silicon ingot earning rate reaches 1-2%.
Claims (2)
1. a kind of polycrystalline ingot furnace improving thermal field performance, including ingot furnace furnace wall（1）It is characterised in that described ingot furnace stove
Wall（1）Inside it is provided with two groups of heat-insulation cage warming plates being parallel to each other（3）, described heat-insulation cage warming plate（3）It is provided with horizontal groove
（6）, heat-insulation cage warming plate（3）Upper end is provided with insulation top board（2）, every piece of heat-insulation cage warming plate（3）Inner side is equipped with four block sizes
Different graphite insulation board（4）, described graphite insulation board（4）Through graphite screw rod（5）It is fixed on heat-insulation cage warming plate（3）On.
2. a kind of polycrystalline ingot furnace improving thermal field performance according to claim 1 is it is characterised in that described graphite is incubated
Plate（4）For high-purity static pressure graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933146.6U CN205999511U (en) | 2016-08-25 | 2016-08-25 | A kind of polycrystalline ingot furnace improving thermal field performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933146.6U CN205999511U (en) | 2016-08-25 | 2016-08-25 | A kind of polycrystalline ingot furnace improving thermal field performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999511U true CN205999511U (en) | 2017-03-08 |
Family
ID=58198197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620933146.6U Expired - Fee Related CN205999511U (en) | 2016-08-25 | 2016-08-25 | A kind of polycrystalline ingot furnace improving thermal field performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999511U (en) |
-
2016
- 2016-08-25 CN CN201620933146.6U patent/CN205999511U/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 |
Granted publication date: 20170308 Termination date: 20200825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |