CN207957779U - A kind of industrial silicon rectification systems - Google Patents
A kind of industrial silicon rectification systems Download PDFInfo
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- CN207957779U CN207957779U CN201820298313.3U CN201820298313U CN207957779U CN 207957779 U CN207957779 U CN 207957779U CN 201820298313 U CN201820298313 U CN 201820298313U CN 207957779 U CN207957779 U CN 207957779U
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Abstract
The utility model provides a kind of industrial silicon rectification systems, belongs to industrial silicon production technical field.A kind of industrial silicon rectification systems comprising：Mineral hot furnace, two-man ladle, refining furnace and Temperature-controlled appliance, the discharge port of mineral hot furnace are connect with the feed inlet two-mand ladle, two-man ladle and be configured for carrying out logical oxygen reaction to silicon liquid；Refining furnace is configured for receiving the silicon liquid after two-maing ladle interior logical oxygen reaction, and Temperature-controlled appliance is configured for the temperature in control refining furnace.The system can preferably remove the impurity in industrial silicon, improve the quality of industrial silicon, increase the yield of industrial silicon.
Description
Technical field
The utility model is related to industrial silicon production technical fields, in particular to a kind of industrial silicon rectification systems.
Background technology
Industrial silicon is also known as metallic silicon, and metallic silicon is the product smelted in mineral hot furnace by silica and carbonaceous reducing agent.Work
Industry silicon is a critically important intermediate products in silicon industrial chain, is the master for manufacturing silicon polished, solar cell and high silicon product
Want raw material.
During smelting industrial silicon, impurity is contained in raw material, these impurity again silica reduction during with
Element silicon is reduced and enters industrial silicon together.In order to improve the quality of industrial silicon, the impurity content in industrial silicon is reduced, usually
By industrial silicon in interior progress oxygen blast slag making of two-maing ladle to remove impurity, to obtain the lower industrial silicon liquid of impurity content, then into
Row moulding by casting.But silicon liquid temperature in two-maing ladle can drastically decline, and cause thermodynamic condition to be deteriorated, many impurity can not be gone
It removes.
Utility model content
The purpose of this utility model is to provide a kind of industrial silicon rectification systems, which can preferably remove in industrial silicon
Impurity, improve the quality of industrial silicon.
The utility model is realized in this way：
A kind of industrial silicon rectification systems comprising：Mineral hot furnace, two-man ladle, refining furnace and Temperature-controlled appliance, mineral hot furnace go out
Material mouth is connect with the feed inlet two-mand ladle, and is two-mand ladle and is configured for carrying out logical oxygen reaction to silicon liquid；
Refining furnace is configured for receiving the silicon liquid after two-maing ladle interior logical oxygen reaction, and Temperature-controlled appliance is configured for
Control the temperature in refining furnace.
Further, in a kind of embodiment of the utility model：
Refining furnace is provided with multiple, and multiple refining furnaces are correspondingly arranged Temperature-controlled appliance.
Further, in a kind of embodiment of the utility model：
Refining furnace is provided with 2 or 3.
Further, in a kind of embodiment of the utility model：
Refining furnace has the function of that electromagnetic induction heating, Temperature-controlled appliance include the frequency-conversion control cabinet of adjustable output power
With the furnace transformer that can provide alternating voltage, refining furnace is electrically connected with the compensation capacitor of frequency-conversion control cabinet, frequency-conversion control cabinet
It is electrically connected with furnace transformer.
Further, in a kind of embodiment of the utility model：
Mineral hot furnace, two-man ladle, refining furnace and Temperature-controlled appliance be arranged in same workshop.
Further, in a kind of embodiment of the utility model：
Industrial silicon rectification systems further include deduster, and deduster is connect with petticoat pipe, the cigarette that deduster is used to collect petticoat pipe
Dirt is dusted.
Further, in a kind of embodiment of the utility model：
Deduster is connect with petticoat pipe by pipeline.
Further, in a kind of embodiment of the utility model：
Deduster is arranged outside workshop.
The utility model has the beneficial effects that：The industrial silicon rectification systems that the utility model is obtained by above-mentioned design lead to
It crosses in interior logical oxygen removal of impurities and the removal of impurities combination in refining furnace of two-maing ladle, the impurity-eliminating effect of industrial silicon is preferable, obtained silicon metal purity
It is higher.Temperature-controlled appliance controls the temperature in refining furnace, and comparatively ideal temperature can be provided for refinery practice, is conducive to
Reject impurity.
Description of the drawings
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the schematic diagram for the industrial silicon rectification systems that the utility model embodiment provides；
Fig. 2 is the schematic diagram for the industrial silicon rectification systems that the utility model embodiment provides；
The schematic diagram for another industrial silicon rectification systems that Fig. 3 the utility model embodiments provide；
The schematic diagram for the industrial silicon rectification systems of another that Fig. 4 the utility model embodiments provide.
Icon：100- industrial silicon rectification systems；110- mineral hot furnaces；120- two-mans ladle；130- refining furnaces；131- petticoat pipes；132-
Deduster；140- Temperature-controlled appliances；141- frequency-conversion control cabinets；142- furnace transformers.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in novel, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Therefore, the detailed description of the embodiment of the utility model provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the utility model of protection is sought, but is merely representative of the selected embodiment of the utility model.Based on the utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Mode shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be understood that the orientation or positional relationship of the instructions such as term "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified equipment or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot manage
Solution is limitations of the present invention.
The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
It is connected directly, can also can be indirectly connected through an intermediary the mutual of connection inside two elements or two elements
Interactively.For the ordinary skill in the art, it can understand that above-mentioned term is new in this practicality as the case may be
Concrete meaning in type.
The utility model embodiment is specifically described below.
During smelting industrial silicon, impurity is contained in raw material, these impurity again silica reduction during with silicon
Element is reduced and enters industrial silicon together.In order to improve the quality of industrial silicon, the impurity content in industrial silicon is reduced, usually will
Industrial silicon carries out oxygen blast slag making in 120 to remove impurity two-maing ladle, to obtain the lower industrial silicon liquid of impurity content, then into
Row moulding by casting.But silicon liquid can drastically decline in temperature in 120 of two-maing ladle, and cause thermodynamic condition to be deteriorated, when cannot carry out long
Between refine, many impurity can not remove.
Based on this, a kind of industrial silicon rectification systems 100 of the utility model embodiment offer and refinery practice, industrial silicon essence
The schematic diagram of refining system 100 please refers to Fig. 1.
Industrial silicon rectification systems 100 include mineral hot furnace 110, two-man ladle 120, refining furnace 130 and Temperature-controlled appliance 140, mine
The discharge port of hot stove 110 is connect with 120 feed inlet of two-maing ladle, and two-maing ladle 120 is configured for carrying out logical oxygen reaction to silicon liquid.
Refining furnace 130 is configured for receiving the silicon liquid after leading to oxygen reaction in 120 of two-maing ladle, 140 quilt of Temperature-controlled appliance
It is disposed for controlling the temperature in refining furnace 130.
Industrial silicon raw material is smelted in mineral hot furnace 110 to obtain silicon liquid, when the silicon liquid liquid level in mineral hot furnace 110 reaches
When certain position, artificial through-hole is carried out so that silicon liquid, which is flowed out from the discharge port of mineral hot furnace 110 from 120 feed inlet of two-maing ladle, to be flowed into
Enter in two-maing ladle 120, it is miscellaneous to reduce iron, aluminium, calcium in silicon liquid etc. in the logical oxygen reaction for carrying out a period of time in 120 of two-maing ladle for silicon liquid
The content of matter.By logical oxygen, treated that silicon liquid is transported to refining furnace 130, and the volume of the silicon liquid in refining furnace 130 is refining furnace
The 1/2~2/3 of 130 volumes.130 remaining volume of refining furnace can be used for that scrap silicon and calcium class slag former is subsequently added.Then sharp
With Temperature-controlled appliance 140 to 130 feeding temperature-raising of refining furnace, scrap silicon is added and calcium class slag former is kneaded.Work as refining furnace
When 130 chargings are full, i.e. the volume of scrap silicon and calcium class slag former is the 1/3~1/2 of 130 volume of refining furnace, controls refining furnace 130
Interior temperature is refined at 1500~1750 DEG C, and 20~60min is kept the temperature after refining.Ran Hou Ru remove boiler face shoddye, and silicon liquid is fallen
Enter in ready silicon packet, is hung to the cast of silicon ingot ingot casting area, obtains the higher metal silicon ingot of purity after silicon liquid crystallization, be crushed blocking
After can packing and selling.
Wherein, scrap silicon includes polycrystalline monocrystal silicon waste materials particle, polycrystalline monocrystalline silicon Buddha's warrior attendant wire cutting briquetting material, metallic silicon
At least one of powder and the useless fragment of metallic silicon leftover pieces, photovoltaic battery panel.Metallic silicon powder includes the dedusting of refining furnace 130
Powder.
The content of scrap silicon silicon selected by present embodiment is higher, and other impurities are less.What is cleaned to silicon liquid
Meanwhile and increase the content of silicon, thus impurity is less in final silicon liquid and silicone content is high.In addition scrap silicon again can waste profit
With energy conservation and environmental protection.
It should be noted that when the scrap silicon being added is polycrystalline monocrystal silicon waste materials particle, polycrystalline monocrystalline silicon Buddha's warrior attendant wire cutting
It is negligible since its iron content, aluminium, calcium content are very low, and substantially when briquetting material.It is final can be obtained national standard 3303,
2202, the metallic silicon of 1101 trades mark.When the scrap silicon of addition is metallic silicon powder and metallic silicon leftover pieces, national standard can be obtained
421 low aluminium, low calcium metallic silicon.Wherein, the impurity content of each trade mark please refers to following table.
| The trade mark | 553 | 441 | 421 | 3303 | 2202 | 1101 |
| Iron | <0.5 | <0.4 | <0.4 | <0.3 | <0.2 | <0.1 |
| Aluminium | <0.5 | <0.4 | <0.2 | <0.3 | <0.2 | <0.1 |
| Calcium | <0.3 | <0.1 | <0.1 | <0.03 | <0.02 | <0.01 |
In the present embodiment, calcium class slag former includes at least one of calcium oxide, calcium hydroxide and calcirm-fluoride.
Calcium oxide, calcium hydroxide and calcirm-fluoride all have preferably slag making effect, can preferably remove sulphur in silicon liquid,
The impurity such as phosphorus, carbon.
In addition, in some embodiments, refining furnace 130 is provided with multiple, and multiple refining furnaces 130 are correspondingly arranged temperature
Control device 140.
The benefit being arranged in this way is that the silicon liquid two-mand ladle in 120 can be dispensed by multiple refining furnaces 130.In addition, this embodiment party
The refining furnace 130 of formula has the function of that electromagnetic induction heating, Temperature-controlled appliance 140 include frequency-conversion control cabinet 141 and electric furnace transformation
Device 142 please refers to Fig. 3, and refining furnace 130 is electrically connected with the compensation capacitor of frequency-conversion control cabinet 141, frequency-conversion control cabinet 141 and electricity
Furnace transformer 142 is electrically connected, and variable alternating voltage is provided by furnace transformer 142, it is defeated that frequency-conversion control cabinet 141 plays adjusting
The effect for going out power, to ensure that the temperature of refining furnace 130 is kept within a certain range.
Further, Fig. 4 is please referred to, industrial silicon rectification systems 100 further include petticoat pipe 131 and deduster 132.Petticoat pipe 131
Flue dust for collecting refining furnace 130, petticoat pipe 131 are connect with deduster 132.Wherein, the flue dust that refining furnace 130 generates is by petticoat pipe
131 collect, and the flue dust of collection is in deduster 132 by processing dedusting.
The feature of the utility model and performance are described in further detail with reference to embodiments.
Embodiment 1
Raw material is smelted to obtain purity for 98% silicon liquid, when the silicon liquid liquid in mineral hot furnace 110 in mineral hot furnace 110
When face reaches predeterminated position, carry out artificial through-hole so that silicon liquid from the discharge port of mineral hot furnace 110 flow out from two-man ladle 120 charging
Mouthful stream, which enters, two-mans ladle in 120, and silicon liquid carries out the logical oxygen reaction of 20min in 120 two-maing ladle.By logical oxygen, treated that silicon liquid pours into essence
In furnace 130, the volume of silicon liquid is the 1/2 of 130 volume of refining furnace.Then the controller for opening frequency-conversion control cabinet 141, to refining furnace
Polycrystalline monocrystal silicon waste materials particle, polycrystalline monocrystalline silicon Buddha's warrior attendant wire cutting briquetting material and calcium oxide is added to refining in 130 feeding temperature-raisings
Stove 130 is full, controls after the temperature in refining furnace 130 is kneaded at 1680 DEG C and keeps the temperature 60min.Ran Hou Ru remove boiler face shoddye, will
Silicon liquid is poured into ready silicon packet, is hung to the cast of silicon ingot ingot casting area, the higher metal silicon ingot of purity is obtained after silicon liquid crystallization,
In, the content of iron<0.25%, the content of aluminium<0.23%, the content of calcium<0.024%.
Embodiment 2
Raw material is smelted to obtain purity for 98% silicon liquid, when the silicon liquid liquid in mineral hot furnace 110 in mineral hot furnace 110
When face reaches predeterminated position, carry out artificial through-hole so that silicon liquid from the discharge port of mineral hot furnace 110 flow out from two-man ladle 120 charging
Mouthful stream, which enters, two-mans ladle in 120, and silicon liquid carries out the logical oxygen reaction of 20min in 120 two-maing ladle.By logical oxygen, treated that silicon liquid pours into essence
In furnace 130, the volume of silicon liquid is the 2/3 of 130 volume of refining furnace.It is then turned on the controller of frequency-conversion control cabinet 141, to refining
130 feeding temperature-raising of stove, metallic silicon powder and metallic silicon leftover pieces and calcium hydroxide to refining furnace 130, which is added, expires, and controls refining furnace
Temperature in 130 keeps the temperature 60min after being kneaded at 1500 DEG C.Ran Hou Ru remove boiler face shoddye, and silicon liquid is poured into ready silicon
Bao Zhong is hung to the cast of silicon ingot ingot casting area, obtains the higher metal silicon ingot of purity after silicon liquid crystallization, wherein the content of iron<
0.33%, the content of aluminium<0.15%, the content of calcium<0.05%.
Embodiment 3
Raw material is smelted to obtain purity for 98% silicon liquid, when the silicon liquid liquid in mineral hot furnace 110 in mineral hot furnace 110
When face reaches predeterminated position, carry out artificial through-hole so that silicon liquid from the discharge port of mineral hot furnace 110 flow out from two-man ladle 120 charging
Mouthful stream, which enters, two-mans ladle in 120, and silicon liquid carries out the logical oxygen reaction of 20min in 120 two-maing ladle.By logical oxygen, treated that silicon liquid pours into essence
In furnace 130, the volume of silicon liquid is the 2/3 of 130 volume of refining furnace.It is then turned on the controller of frequency-conversion control cabinet 141, to refining
130 feeding temperature-raising of stove, metallic silicon powder and polycrystalline monocrystal silicon waste materials particle and calcirm-fluoride to refining furnace 130, which is added, expires, control essence
Temperature in furnace 130 keeps the temperature 20min after being kneaded at 1750 DEG C.Ran Hou Ru remove boiler face shoddye, and silicon liquid is poured into and is ready to
Silicon packet in, be hung to silicon ingot ingot casting area cast, silicon liquid crystallization after obtain the higher metal silicon ingot of purity, wherein the content of iron<
0.33%, the content of aluminium<0.21%, the content of calcium<0.08%.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of industrial silicon rectification systems, which is characterized in that it includes：Mineral hot furnace is two-mand ladle, refining furnace and Temperature-controlled appliance,
The discharge port of the mineral hot furnace is connect with the feed inlet two-mand ladle, it is described two-man ladle be configured for carrying out logical oxygen to silicon liquid it is anti-
It answers；
The refining furnace is two-mand ladle the silicon liquid after interior logical oxygen reaction described in being configured for receiving, the Temperature-controlled appliance
It is configured for controlling the temperature in the refining furnace.
2. industrial silicon rectification systems according to claim 1, which is characterized in that the refining furnace be provided with it is multiple, it is multiple
The refining furnace is correspondingly arranged the Temperature-controlled appliance.
3. industrial silicon rectification systems according to claim 2, which is characterized in that the refining furnace is provided with 2 or 3.
4. industrial silicon rectification systems according to claim 1 or 2, which is characterized in that the refining furnace has electromagnetic induction
Heating function, Temperature-controlled appliance include the frequency-conversion control cabinet of adjustable output power and can provide the electric furnace transformation of alternating voltage
Device, the refining furnace are electrically connected with the compensation capacitor of the frequency-conversion control cabinet, the frequency-conversion control cabinet and the electric furnace transformation
Device is electrically connected.
5. industrial silicon rectification systems according to claim 1, which is characterized in that the mineral hot furnace, it is described two-man ladle, the essence
Furnace and the Temperature-controlled appliance are arranged in same workshop.
6. industrial silicon rectification systems according to claim 5, which is characterized in that the industrial silicon rectification systems further include cigarette
Cover, the petticoat pipe are used to collect the flue dust of the refining furnace.
7. industrial silicon rectification systems according to claim 6, which is characterized in that the industrial silicon rectification systems further include removing
Dirt device, the deduster are connect with the petticoat pipe, and the flue dust that the deduster is used to collect the petticoat pipe is dusted.
8. industrial silicon rectification systems according to claim 7, which is characterized in that the deduster passes through pipe with the petticoat pipe
Road connects.
9. industrial silicon rectification systems according to claim 7, which is characterized in that the deduster is arranged in the workshop
Outside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820298313.3U CN207957779U (en) | 2018-03-02 | 2018-03-02 | A kind of industrial silicon rectification systems |
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| CN201820298313.3U CN207957779U (en) | 2018-03-02 | 2018-03-02 | A kind of industrial silicon rectification systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163860A (en) * | 2018-03-02 | 2018-06-15 | 邱清余 | A kind of industrial silicon rectification systems and refinery practice |
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2018
- 2018-03-02 CN CN201820298313.3U patent/CN207957779U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163860A (en) * | 2018-03-02 | 2018-06-15 | 邱清余 | A kind of industrial silicon rectification systems and refinery practice |
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