CN203700583U - Polycrystalline silicon ingot production furnace - Google Patents
Polycrystalline silicon ingot production furnace Download PDFInfo
- Publication number
- CN203700583U CN203700583U CN201420040252.2U CN201420040252U CN203700583U CN 203700583 U CN203700583 U CN 203700583U CN 201420040252 U CN201420040252 U CN 201420040252U CN 203700583 U CN203700583 U CN 203700583U
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- China
- Prior art keywords
- insulation cage
- heat
- thermal
- insulation
- polycrystalline silicon
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Abstract
The utility model discloses a polycrystalline silicon ingot production furnace and relates to the technical field of thermal insulation for the thermal fields of polycrystalline silicon ingot production furnaces. The polycrystalline silicon ingot production furnace adopts the structure that a thermal-insulation cage is arranged outside a crucible and a heater and is composed of a fixed thermal-insulation cage top board, a bottom board and movable thermal-insulation cage side boards; the movable thermal-insulation cage side boards comprise an inner thermal-insulation cage side board and an outer thermal-insulation cage side board; each of inner and outer thermal-insulation cage side boards is divided into an upper part and a lower part; one or more composite boards are arranged on the inner side of the lower inner thermal-insulation cage side board; the composite boards are fixed to the lower inner thermal-insulation cage side board and the lower outer thermal-insulation cage side board through fixing screws; the composite boards are made from graphite carbon. Through the adoption of the polycrystalline silicon ingot production furnace, the frequency of the phenomenon that the original inner thermal-insulation cage side board desquamates in a power manner due to high-temperature baking for a long time is reduced; the service life of the inner thermal-insulation cage side board can be prolonged by 2 years; the thermal insulation performance of the thermal-insulation cage is improved, the energy consumption is reduced, and the production cost is lowered.
Description
Technical field
The utility model relates to polycrystalline silicon ingot casting technical field, especially relates to a kind of polycrystalline silicon ingot or purifying furnace.
Background technology
Polycrystalline silicon ingot or purifying furnace heat-insulation cage comprises the heat-insulation cage side plate of heat-insulation cage top board, heat-insulation cage base plate and surrounding, and heat-insulation cage side plate is divided into upper and lower two portions and inside and outside two-layer.Described heat insulation side plate is made up of graphite carbon felt material, after long-time high bake, thermal baffle there will be serious efflorescence to drop, and then affect the integral heat insulation effect of heat-insulation cage, while causing moving, the thermograde of heating power increase and thermal field occurs inhomogeneous, thereby while causing the long crystalline substance of silicon ingot, occur shade, in order to guarantee the normal use of stove, lock heat-insulation cage side plate will be changed about 1 year, increase maintenance cost, and affected production schedule to a certain extent.
Utility model content
The purpose of this utility model is, for the problems referred to above, provides a kind of polycrystalline silicon ingot or purifying furnace of long service life.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of polycrystalline silicon ingot or purifying furnace, comprise crucible, well heater, heat-insulation cage, housing, on described crucible, be provided with well heater, the outer setting of described crucible and well heater has heat-insulation cage, described heat-insulation cage is by the heat insulation top board of fixing up and down, the movable heat-insulation cage side plate composition of heat insulation bottom board and surrounding, described heat-insulation cage side plate is made up of heat-insulation cage outer panel and heat-insulation cage interior plate, described heat-insulation cage interior plate is divided into upper and lower two portions, go up heat-insulation cage interior plate and lower heat-insulation cage interior plate, described heat-insulation cage outer panel is arranged on heat-insulation cage interior plate outside, described heat-insulation cage outer panel is divided into upper and lower two portions, go up heat-insulation cage outer panel and lower heat-insulation cage outer panel, described lower heat-insulation cage interior plate inner side is provided with at least one protective shield, described protective shield is composition board, described composition board and described lower heat-insulation cage interior plate and lower heat-insulation cage outer panel are fixed.
Further, described composition board is fixed on described lower heat-insulation cage interior plate and lower heat-insulation cage outer panel by retaining screw, and described retaining screw is made up of graphite screw rod and graphite nut.
Further, described composition board adopts graphite carbon Material cladding plate.
Further, the requirement of described graphite carbon Material cladding plate, parallel fibers direction, vertical fibers direction tensile strength all >=5MPa, thermal conductivity >=0.06W/mK.
Further, described protective shield is set to four, in the same size, and the length of every is 663mm, and wide is 330mm, and thick is 40mm.
The beneficial effects of the utility model are, compared with prior art described polycrystalline silicon ingot or purifying furnace by being fixed with composition board in lower heat-insulation cage interior plate, promote the heat-insulating property of heat-insulation cage inside, energy-saving and cost-reducing, reduce the dry linting phenomenon that the long-time high bake of former lower heat-insulation cage interior plate causes, can make extend to about 2 years the work-ing life of warming plate inside thermal baffle, reduce production costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of polycrystalline silicon ingot or purifying furnace of providing of the utility model embodiment 1.In figure:
1, furnace chamber housing; 2, well heater; 3, crucible; 4, composition board; 5, pillar stiffener; 6, heat-insulation cage base plate; 7, graphitic cooling block; 8, retaining screw; 91, lower heat-insulation cage interior plate; 92, upper heat-insulation cage interior plate; 101, lower heat-insulation cage outer panel; 102, upper heat-insulation cage outer panel; 11, fixed link; 12, observation tube; 13, heat-insulation cage enhancing screw; 14, heat-insulation cage top board.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Please refer to shown in Fig. 1, in the present embodiment, a kind of polycrystalline silicon ingot or purifying furnace comprises crucible 3, well heater 2, heat-insulation cage, furnace chamber housing 1, in described furnace chamber, be provided with crucible 3, described crucible 3 is placed on graphitic cooling block 7, described graphitic cooling block 7 is supported by pillar stiffener 5, described pillar stiffener 5 is through heat-insulation cage bottom, bottom is fixed on furnace chamber housing 1 inwall, the top of described crucible 3 is provided with well heater 2, described well heater 2 is fixed on well heater fixed link 11 lower ends, and the central authorities of furnace chamber are provided with observation tube 12 from top to bottom, heat-insulation cage is arranged at the outside of crucible 3 and well heater 2, described heat-insulation cage is rectangular parallelepiped mechanism, be divided into six faces, by the heat-insulation cage top board 14 of fixing up and down, the movable heat-insulation cage side plate composition of heat-insulation cage base plate 6 and surrounding, the heat-insulation cage side plate upper end of described activity is connected with heat-insulation cage enhancing screw 13, described heat-insulation cage side plate is made up of heat-insulation cage outer panel and heat-insulation cage interior plate, described heat-insulation cage interior plate is divided into upper and lower two portions, go up heat-insulation cage interior plate 92 and lower heat-insulation cage interior plate 91, described heat-insulation cage outer panel is arranged on heat-insulation cage interior plate outside, described heat-insulation cage outer panel is also divided into upper and lower two portions, go up heat-insulation cage outer panel 102 and lower heat-insulation cage outer panel 101, described lower heat-insulation cage interior plate 91 inner sides are provided with four protective shields, described protective shield is composition board 4, described composition board 4 is fixing with described lower heat-insulation cage interior plate 91 and lower heat-insulation cage outer panel 101, described composition board 4 is that the retaining screw 8 by being made up of graphite screw rod and graphite nut is fixing.
Described composition board 4 is made for graphite charcoal felt material, the composition board 4 that described graphite charcoal felt material is made requires: described composition board 4 can be high temperature resistant, can more than 2000 ℃, under temperature environment, work long hours, carbon element content is more than or equal to 99%, and requires that parallel fibers direction, vertical fibers direction tensile strength are all more than or equal to 10MPa, thermal conductivity is more than or equal to 0.06W/mK.
Described four composition boards 4 are in the same size, and the length of every is 663mm, and wide is 330mm, and thick is 40mm.
Heat-insulation cage moving part top is fixed in heat-insulation lifting screw mandrel 13 lower ends.In the time that needs are adjusted temperature, can promote the moving part of heat-insulation cage, now, upper heat-insulation cage interior plate 92, upper heat-insulation cage outer panel 102 are promoted to certain altitude, it is larger that the bottom of heat-insulation cage moving part and heat-insulation cage base plate 6 are connected gap, and heat-insulation cage heat sheds from gap, formation temperature gradient, be upper and lower temperature difference, upper surface temperature relative superiority or inferiority surface temperature is low.
Above embodiment has just set forth ultimate principle of the present utility model and characteristic; the utility model is not limited by above-described embodiment; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a polycrystalline silicon ingot or purifying furnace, comprise crucible, well heater, heat-insulation cage, furnace chamber housing, on described crucible, be provided with well heater, the outer setting of described crucible and well heater has heat-insulation cage, described heat-insulation cage is by the heat insulation top board of fixing up and down, the movable heat-insulation cage side plate composition of heat insulation bottom board and surrounding, described heat-insulation cage side plate is made up of heat-insulation cage outer panel and heat-insulation cage interior plate, described heat-insulation cage interior plate is divided into upper and lower two portions, go up heat-insulation cage interior plate and lower heat-insulation cage interior plate, described heat-insulation cage outer panel is arranged on heat-insulation cage interior plate outside, described heat-insulation cage outer panel is divided into upper and lower two portions, go up heat-insulation cage outer panel and lower heat-insulation cage outer panel, it is characterized in that: described lower heat-insulation cage interior plate inner side is fixed with at least one protective shield, described protective shield is composition board, described composition board adopts graphite carbon Material cladding plate.
2. a kind of polycrystalline silicon ingot or purifying furnace according to claim 1, is characterized in that: described composition board is fixed on described lower heat-insulation cage interior plate and lower heat-insulation cage outer panel by retaining screw, and described retaining screw is made up of graphite screw rod and graphite nut.
3. a kind of polycrystalline silicon ingot or purifying furnace according to claim 1, is characterized in that: the parallel fibers direction of described graphite carbon Material cladding plate, vertical fibers direction tensile strength all >=5MPa, thermal conductivity >=0.06W/mK.
4. a kind of polycrystalline silicon ingot or purifying furnace according to claim 1, is characterized in that: described protective shield is set to four, in the same size, the length of every is 663mm, and wide is 330mm, and thick is 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040252.2U CN203700583U (en) | 2014-01-22 | 2014-01-22 | Polycrystalline silicon ingot production furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040252.2U CN203700583U (en) | 2014-01-22 | 2014-01-22 | Polycrystalline silicon ingot production furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203700583U true CN203700583U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040252.2U Expired - Fee Related CN203700583U (en) | 2014-01-22 | 2014-01-22 | Polycrystalline silicon ingot production furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203700583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757690A (en) * | 2014-01-22 | 2014-04-30 | 高佳太阳能股份有限公司 | Polycrystalline silicon ingot furnace |
-
2014
- 2014-01-22 CN CN201420040252.2U patent/CN203700583U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757690A (en) * | 2014-01-22 | 2014-04-30 | 高佳太阳能股份有限公司 | Polycrystalline silicon ingot furnace |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20210122 |