CN205774924U - A kind of metal-silicon furnace directional solidification reactor - Google Patents
A kind of metal-silicon furnace directional solidification reactor Download PDFInfo
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- CN205774924U CN205774924U CN201620583898.4U CN201620583898U CN205774924U CN 205774924 U CN205774924 U CN 205774924U CN 201620583898 U CN201620583898 U CN 201620583898U CN 205774924 U CN205774924 U CN 205774924U
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- corundum
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- outer casing
- metal
- directional solidification
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Abstract
This utility model relates to a kind of metal-silicon furnace directional solidification reactor, including outer casing, it is located at the corundum cavity within outer casing, it is located at the heat-insulation layer between corundum cavity and outer casing, the bottom of described outer casing is provided with base plate, top is provided with upper cover, the inner side of described upper cover is provided with heat preservation module, described corundum cavity upper end is provided with annular steel tank, the outer face of this annular steel tank contacts with heat-insulation layer, with short production cycle, pollute little, simple to operate, slag silicon good separating effect, product is impure extremely low, end product quality is high, the advantages such as production cost is low.
Description
Technical field
This utility model relates to a kind of technical field of smelting, specifically a kind of metal-silicon furnace directional solidification reactor.
Background technology
Along with the development of global economy, the demand of the energy is constantly increased by the mankind, the non-renewable resources day such as oil, coal
Benefit is exhausted.Solar energy is as the regenerative resource of a kind of cleaning, and its research and development is developed rapidly.Photovoltaic industry quick-fried
Hairdo increases the supply huge breach of appearance making solar grade polycrystalline silicon material.Traditional Siemens Method can not meet photovoltaic
The growth requirement in market.Physical Metallurgy method have small investment, low cost and other advantages and by the extensive concern of various countries.
Directional solidification processes is the important step that Physical Metallurgy method prepares solar-grade polysilicon.It is by controlling temperature
Degree, temperature retention time etc. make ingot casting unidirectional growth, and utilize zone-refine effect that impurity element is enriched to ingot top, reach
To the purpose purified.
Utility model content
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of simple in construction, it is possible to solve
Certainly slag silicon inferior separating effect present in metallurgy method purifying technique, the higher problem of impurity content metal-silicon furnace directional solidification anti-
Answer device and pouring procedure.
For reaching above-mentioned purpose, this utility model by the following technical solutions, react by a kind of metal-silicon furnace directional solidification
Device, including outer casing, is located at the corundum cavity within outer casing, is located at the insulation between corundum cavity and outer casing
Layer, the bottom of described outer casing is provided with base plate, and top is provided with upper cover, and the inner side of described upper cover is provided with heat preservation module, institute
The corundum cavity upper end stated is provided with annular steel tank, and the outer face of this annular steel tank contacts with heat-insulation layer.
Further, described outer shell position is arranged with fixing collar.
Further, described outer casing is provided with symmetrically, and the gudgeon of the central axis with outer casing.
Further, described corundum cavity is inverted trapezoidal.
Described outer casing and corundum cavity are bolted to connection with base plate respectively.
This utility model uses above technical scheme, has the following advantages, with short production cycle, pollute little, simple to operate, slag
Impure extremely low, the advantage such as end product quality is high, and production cost is low of silicon good separating effect, product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structural representation after the cast demoulding of corundum cavity；
Fig. 3 is turnover bracket structural representation.
In figure: 1. outer casing；2. corundum cavity；3. heat-insulation layer；4. base plate；5. upper cover；6. heat preservation module；7. ring
Shape steel tank；8. fixing collar；9. gudgeon；10. bolt.
Detailed description of the invention
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
A kind of metal-silicon furnace directional solidification reactor as depicted in figs. 1 and 2, it is characterised in that include outer casing
1, be located at the corundum cavity 2 within outer casing 1, the heat-insulation layer 3 being located between corundum cavity 2 and outer casing 1, described outside
The bottom of layer housing 1 is provided with base plate 4, and top is provided with upper cover 5, and the inner side of described upper cover 5 is provided with heat preservation module 6, and described is firm
Beautiful cavity 2 upper end is provided with annular steel tank 7, and the outer face of this annular steel tank 7 contacts with heat-insulation layer 3.
In concrete casting process, corundum cavity 2 is for the cast of silicon liquid, in the ancient city used, open upper cover 5 to
Corundum cavity 2 no cast silicon liquid, is then fixed upper cover 5 with outer casing 1 by Constructioning fastener, after silicon liquid non-shock chilling,
Reactor is placed on runing rest, half-twist, continues static 8 hours, then change demoulding steel plate, at half-twist, real
The existing demoulding, the impurity of the silicon liquid poured into a mould static when can float to the top of corundum cavity 2, after rotating 180 °, miscellaneous
Matter can drop in annular steel tank 7, it is achieved the removing of impurity in the cast of silicon liquid.
Embodiment 2
On the basis of embodiment one, in order to outer casing 1 is during work, the most firm, at described outer layer
Housing 1 is arranged with fixing collar 8, for reinforcing outer casing 1.
During upset, in order to make outer casing 1 easy to installation and removal with runing rest, at described outer shell
Body 1 is provided with symmetrically, and the gudgeon 9 of the central axis with outer casing 1, during using, it is only necessary to by ear
Axle 9 is arranged in the rotating hole of runing rest, it is achieved support and the rotation to outer casing；
Further, more complete for remove impurity after being cast, employed technical scheme comprise that described corundum cavity 2 is for falling
Trapezoidal.
For outer casing 1, connect between corundum cavity 2 and base plate 4 is more firm, and described outer casing 1 is with just
Beautiful cavity 2 is connected by bolt 10 is fixing with base plate 4 respectively.
Embodiment 3
A kind of method using metal-silicon furnace directional solidification reactor to pour into a mould, follows the steps below:
A. preparation, joins the refractory material being stirred in mould from bottom, and with the uniform jolt ramming of vibrating head, shakes
Want charging limit, limit to vibrate during smashing, do not stay dead angle, it is to avoid touch anchor studs；
B. corundum cavity 2 is poured into a mould, by the external mold of corundum cavity 2 together with the interior die combination of corundum cavity 2, then to just
The external mold of beautiful cavity 2 and the chamber internal casting corundum corundum castable of inner membrance composition, after casting complete, air cooling 12h, in the air cooling phase
Between, keep the surface wettability of the corundum cavity 2 of cast, after air cooling 12h, slough external mold and the Nei Mo of corundum cavity 2, complete corundum
The cast of cavity 2；
C. assemble, the corundum cavity 2 poured into a mould is fixed on base plate 4, then by outer layer by base plate alignment pin location
Housing 1 is bolted on base plate 4, and corundum cavity 2 is positioned at the middle part of outer casing 1, then to corundum cavity 2 with outer
Fill in fiber thermal insulation between layer housing 1 cotton, and be compacted, on corundum cavity 2, then put annular steel tank 7；The insulation that will assemble
Layer upper cover 5 covers on outer casing 1, and makes upper cover 5 and outer casing 1 fixation with Constructioning fastener；
D. pour into a mould, open upper cover 5, in corundum cavity 2, pour into a mould silicon liquid, then cover upper cover 5；,
E. overturn, after the silicon liquid non-shock chilling of cast in step d, reactor is placed into rotation as shown in Figure 3 and props up
On frame, half-twist, continues static 8 hours, then changes demoulding steel plate, at half-twist, it is achieved the demoulding；
F. dry, after the demoulding completes, clean out in corundum cavity 2, then with fire clay, corundum cavity 2 is repaiied
Mend, and spray Si3N4, the most at least dry 12h, it is ensured that moisture evaporates completely can be poured into a mould next time.
Requiring disposable pouring liquid industrial silicon continuously during cast, temperature should be not less than 1700 DEG C, need after casting complete
Cover insulation fibre cover plate immediately；After 90min, mould entirety is overturn 90 °, after 8h, opens heat-insulating fiberboard upper cover, change de-
Mould steel plate, overturns 90 ° again by mould entirety, automatic demoulding.After the demoulding, die bush must be cleaned out, and then uses fire-resistant
Mud is repaired, and sprays Si3N4, drying 12h can pour into a mould next time.
Exemplified as above is only to illustration of the present utility model, is not intended that protection domain of the present utility model
Limit, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.
Claims (5)
1. a metal-silicon furnace directional solidification reactor, it is characterised in that include outer casing (1), is located at outer casing (1)
Internal corundum cavity (2), the heat-insulation layer (3) being located between corundum cavity (2) and outer casing (1), described outer casing
(1) bottom is provided with base plate (4), and top is provided with upper cover (5), and the inner side of described upper cover (5) is provided with heat preservation module (6), described
Corundum cavity (2) upper end be provided with annular steel tank (7), the outer face of this annular steel tank (7) contacts with heat-insulation layer (3).
A kind of metal-silicon furnace directional solidification reactor the most according to claim 1, it is characterised in that described outer casing
(1) position is arranged with fixing collar (8).
A kind of metal-silicon furnace directional solidification reactor the most according to claim 1, it is characterised in that described outer shell
Body (1) is provided with symmetrically, and the gudgeon (9) of the central axis with outer casing (1).
A kind of metal-silicon furnace directional solidification reactor the most according to claim 1, it is characterised in that described corundum cavity
(2) it is inverted trapezoidal.
A kind of metal-silicon furnace directional solidification reactor the most according to claim 1, it is characterised in that described outer shell
Body (1) and corundum cavity (2) are connected by bolt (10) is fixing with base plate (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620583898.4U CN205774924U (en) | 2016-06-16 | 2016-06-16 | A kind of metal-silicon furnace directional solidification reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620583898.4U CN205774924U (en) | 2016-06-16 | 2016-06-16 | A kind of metal-silicon furnace directional solidification reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205774924U true CN205774924U (en) | 2016-12-07 |
Family
ID=58132831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620583898.4U Active CN205774924U (en) | 2016-06-16 | 2016-06-16 | A kind of metal-silicon furnace directional solidification reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205774924U (en) |
-
2016
- 2016-06-16 CN CN201620583898.4U patent/CN205774924U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |