CN106482514A - A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique - Google Patents
A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique Download PDFInfo
- Publication number
- CN106482514A CN106482514A CN201611129949.7A CN201611129949A CN106482514A CN 106482514 A CN106482514 A CN 106482514A CN 201611129949 A CN201611129949 A CN 201611129949A CN 106482514 A CN106482514 A CN 106482514A
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- Prior art keywords
- furnace
- induction furnace
- electron beam
- beam gun
- silicon
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
- F27B14/061—Induction furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B2014/002—Smelting process, e.g. sequences to melt a specific material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0843—Lining or casing
Abstract
The invention discloses a kind of induction furnace based on electron beam gun melts silicon plays furnace apparatus and technique, including induction furnace, it is provided with coil in the cavity of induction furnace, it is provided with coil clay layer inside coil, fill compacting inside coil clay layer and be formed with inner liner, at induction furnace top at least provided with one or more electron beam gun.The present invention passes through to configure one or more electron beam gun on induction furnace, mode of heating of concentrating using electron beam gun heats to the silica flour in induction furnace, when being thermally formed part silicon liquid, start induction furnace, the weak inductive using silicon liquid carries out sensing heating, thus melting more silicon liquids, under the mating reaction of electron beam gun and induction furnace, silico briquette can efficiently be melted in short time, complete the furnace lifting step of silicon liquid melting, realize carrying out the purpose of silicon melting using induction furnace.
Description
Technical field
The present invention relates to the recycling manufacture field of white residue is and in particular to a kind of induction furnace based on electron beam gun melts silicon
Play furnace apparatus and technique.
Background technology
White residue generally refers to the remainder after raw ore refines, and also contains a certain amount of silicon.White residue divides many kinds, industry
White residue, solar energy white residue, quasiconductor white residue etc..White residue can be used to melt down recrystallize, purify, present silicon material in short supply, valency
Lattice are high.Silicon manganese slag is also silicomanganese metallurgical slag, is a kind of industrial residue discharging during Smelting Simn In A, its short texture, outward
Seeing is often jade-green granule, is made up of some porous noncrystalline granules in irregular shape.Silicon manganese slag is crisp frangible, by broken
The silicon manganese slag of bulk can be broken into fritter by broken machine, subsequently into fine crusher, the material after coarse crushing is pulverized further it is ensured that
The material entering feed bin can reach the degree of monomer dissociation, then passes through oscillating feeder and belt conveyor uniformly by thing
Material feeds trapezoidal washbox and is sorted.Broken main purpose is to break intergrowth structure, and the main purpose of jigging is
Silicomangan is reclaimed from silicon manganese slag.There is larger difference in specific gravity in silicon manganese slag and silicomangan, by the gravity treatment effect of jigging machine
Metal can be separated with waste residue, obtain pure alloy and waste residue, the dehydrations that finally can pass through dewatering screen respectively will
Concentrate and tailings is dehydrated.
Induction furnace is the electric furnace making material heating or fusing using the Induction Heating effect of material.The friendship that induction furnace adopts
Stream power supply has power frequency (50 or 60 hertz), intermediate frequency (150～10000 hertz) and 3 kinds of high frequency (higher than 10000 hertz).Induction furnace main
Part has induction apparatuss, body of heater, power supply, electric capacity and control system etc..Under the alternating electromagnetism field action in induction furnace, inside material
Produce vortex thus reach heating or fusing effect.Induction furnace is generally divided into induction heater and smelting furnace.Smelting furnace divides
For channel induction furnace and coreless induction furnace two class.Channel induction furnace is mainly used in melting and the insulation of the metals such as various cast irons, energy
Using spent charge, melting low cost.Coreless induction furnace be divided into power frequency induction furnace, frequency tripling sense stove, generating set intermediate frequency furnace,
Controllable silicon intermediate frequency furnace, Efco-Northrup furnace.Induction furnace is divided into according to frequency：50 hertz of main frequency furnace, intermediate frequency furnace (150～10000
Conspicuous) and 3 kinds of coreless induction furnace (higher than 10000 hertz).
The capital equipment of current silicon melting is crucible, carries out the technology also comparative maturity of silicon melting using crucible, but
Be the disadvantage of crucible be exactly that capacity is too little, the amount of single melting is little, and the difficult bottleneck of volume production constrains the development of silicon always.
Content of the invention
It is an object of the invention to provide a kind of induction furnace based on electron beam gun melts silicon plays furnace apparatus and technique, by building
The efficiency to improve silicon melting for the vertical new technique, thus the yield of silicon is greatly improved, reduces the purpose of volume production cost.
The present invention is achieved through the following technical solutions：
A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus, including induction furnace, arranges in the cavity of induction furnace
There is coil, be provided with coil clay layer inside coil, fill compacting inside coil clay layer and be formed with inner liner, in sensing
Furnace roof portion is at least provided with one or more electron beam gun.The interior die body that the induction furnace of the present invention is made using steel plate,
Its surface smooth, by fill compacting liner surface smooth, due to compacting after, between interior die body steel plate and inner liner
Closely it is impossible to take out interior die body, in order to solve this problem, applicant passes through portion in internal model body and arranges a heating for laminating
Device, after the completion of filling compacting, is heated using heater, and its rate of expanding with heat and contract with cold of the interior die body that steel plate is made is much big
In the expansion rate of liner layer material, therefore, the internal lining of interior die body carries out the extruding of radial direction and the extruding that bottom is downward, so not
Only smash tightly inner liner in radial direction compacting, after cooling, the interior die body that steel plate is made inwardly shrinks, and separates generation between inner liner
Gap, when gap is reasonable, can easily take out interior die body, and the present invention is due to increased squeezing of inner liner radial direction
Pressure, so that inner liner more consolidation, the compaction process of downward compacting and radial direction, all provides effectively to the compactness of inner liner
Support, by one or more electron beam gun is configured on induction furnace, using the concentration mode of heating pair of electron beam gun
Silica flour in induction furnace is heated, and when being thermally formed part silicon liquid, starts induction furnace, using the weakly conducting of silicon liquid
Property carries out sensing heating, thus melting more silicon liquids, under the mating reaction of electron beam gun and induction furnace, can be in the short time
Efficiently melt silico briquette, complete the furnace lifting step of silicon liquid melting, realize carrying out the purpose of silicon melting using induction furnace.
The direction of the launch of described electron beam gun from top to bottom, and the application point of electron beam gun be located at induction furnace internal cavities
Bottom.By setting the direction of the launch of electron beam gun so as to hot spot is gathered in the bottom of induction furnace internal cavities, thus can
Effectively to heat to silico briquette, the heating of concentrating of bottom silico briquette can form more stable fusion process, is easy to silicon liquid shape
The process control becoming.
Described induction furnace is intermediate frequency furnace, and its operating frequency is 100～140Hz.It is found by the applicant that existing silicon melting skill
Art is all carried out using crucible, and shape of crucible itself, physical property determine its size can not be too big, less size limit
Make yield, applicant has done detailed research to induction furnace in melting technique, induction furnace contributes to Metal Melting, and silicon
It is nonmetallic materials it is impossible to use induction furnace；In order to carry out silicon melting, applicant using induction furnace, technique is improved,
Overcome technical prejudice, by, when furnace lifting, carrying out being thermally formed silicon liquid to silicon using electron beam gun, using silicon liquid
Weak inductive can also autonomous induction heat, thus quickly completing the furnace lifting of silicon liquid, reach the purpose of melting silico briquette, relatively
For the maximum capacity 20KG of crucible, the present invention carries out the mode of silicon melting using induction furnace, can be by the melting amount of monomer
It is promoted to 5 tons, for the crucible for smelting of prior art, substantially increase yield and production efficiency.Applicant is to existing
Induction furnace carried out experiments up to ten thousand time, be found that the type of the induction furnace that can be used for silicon melting through experiment：Intermediate frequency furnace,
But not all intermediate frequency furnace can use, in prior art, the frequency that intermediate frequency furnace is 150～10000Hz all referring to frequency
Rate, although and employ the structure of intermediate frequency furnace in the present invention, Important Adjustment is made that for the parameter that it runs, by it
Operational factor is adjusted to 100～140Hz, and now, the non-normal working actually belonging to intermediate frequency furnace is interval, using ill work
To carry out the melting of silicon, the well beyond cognitive range of those skilled in the art as state, also to meet the bar of silicon melting simultaneously
Part, achieves unexpected advantage, for silicon melting field, has breakthrough progress, by the volume production pole of silicon melting
Big raising, has promoted the development of industry.
Described intermediate frequency furnace, its operating frequency is 120～130Hz.Preferably, by constantly being adjusted to the parameter of intermediate frequency furnace
Whole and revision, finally determines a more preferred scope, within this range, the speed of melting of silicon is fast, efficiency high.
A kind of induction furnace based on electron beam gun melts silicon and plays furnace technology, comprises the following steps：
A silica flour or silico briquette are encased in the inside of induction furnace by ()；
B () starts electron beam gun, using electron beam gun, silica flour or silico briquette are heated, prepared silicon liquid；
C (), while carrying out step (b), starts induction furnace and is heated；
D (), after silica flour or silico briquette are completely converted into silicon liquid, stop electron beam gun heating, completes furnace lifting.
The present invention passes through to configure one or more electron beam gun on induction furnace, using the concentration heating of electron beam gun
Mode heats to the silica flour in induction furnace, when being thermally formed part silicon liquid, starts induction furnace, weak using silicon liquid
Electric conductivity carries out sensing heating, thus melting more silicon liquids, under the mating reaction of electron beam gun and induction furnace, can be in short-term
Interior efficiently fusing silico briquette, completes the furnace lifting step of silicon liquid melting, realizes carrying out the purpose of silicon melting using induction furnace.
When carrying out step (b) and step (c), also silicon liquid is stirred operating, operating process is：Using wooden stick to silicon
Liquid carries out unidirectional agitation clockwise or counterclockwise, agitation 2～3 circle per minute.In actual production process, apply for Crinis Carbonisatus
Existing, the flowing of silicon liquid is favourable for induction heating, by increasing stirring operation during furnace lifting, so that silicon water
The heat of heat is quickly disseminated, thus accelerating the fusing of silica flour or silico briquette, in prior art, generally to be made using graphite rod
For the operation instrument in silicon fusion process, but because the characteristic of graphite rod itself is softer, the intensity of itself very low it is easy to
Lose, the consumption of graphite causes the rising of cost, also constrains the development of silicon melting, for this reason, applicant is through groping for many years
Find, it is possible to use wooden stick is operated, and to carry out the agitation utensil of silicon melting using wooden stick as consumptive material, wooden stick is through high temperature
Gradually burn afterwards and discharge with waste gas, in terms of existing technologies, not only reduce production cost, and can't introduce miscellaneous
Matter, it is to avoid the problem as impurity for the graphite, improves the quality of product.
Described induction furnace is intermediate frequency furnace, and its operating frequency is 100～140Hz.
Described intermediate frequency furnace, its operating frequency is 120～130Hz.
The present invention compared with prior art, has such advantages as and beneficial effect：
1st, a kind of molten silicon of induction furnace based on electron beam gun of the present invention plays furnace apparatus and technique, by configuring on induction furnace
One or more electron beam gun, the mode of heating of concentrating using electron beam gun heats to the silica flour in induction furnace, when
When being thermally formed part silicon liquid, start induction furnace, the weak inductive using silicon liquid carries out sensing heating, thus melting more
Silicon liquid, under the mating reaction of electron beam gun and induction furnace, efficiently can melt silico briquette in the short time, complete silicon liquid melting
Furnace lifting step, realize carry out the purpose of silicon melting using induction furnace；
2nd, a kind of induction furnace based on electron beam gun of the present invention melts silicon and plays furnace apparatus and technique, by when furnace lifting,
The mode of iron block will be added in silico briquette, temperature is heated to 1480～1520 DEG C simultaneously, temperature now has reached the molten of silicon
Melt temperature, but without the melt temperature reaching ferrum, iron block produces substantial amounts of heat as the thermogenesis component of induction furnace, and silico briquette is inhaled
Reach temperature after receiving heat and melt formation silicon water, and iron block does not reach fusing point, keeps the state of solid, silico briquette is after thawing
Formed silicon water, after iron block is taken out, using silicon water weak inductive can also autonomous induction heat, reach the mesh of melting silico briquette
, for the maximum capacity 20KG of crucible, the present invention carries out the mode of silicon melting using induction furnace, can be by monomer
Melting amount is promoted to 5 tons, for the crucible for smelting of prior art, substantially increases yield and production efficiency；
3rd, a kind of molten silicon of induction furnace based on electron beam gun of the present invention plays furnace apparatus and technique, does for the parameter that it runs
Go out Important Adjustment, its operational factor has been adjusted to 100～140Hz, now, actually belong to the non-normal working of intermediate frequency furnace
Interval, carries out the melting of silicon, the well beyond cognitive range of those skilled in the art using ill working condition, with
When also meet the condition of silicon melting, achieve unexpected advantage, for silicon melting field, there is breakthrough entering
Step, the volume production of silicon melting is greatly improved, has promoted the development of industry.
Brief description
Accompanying drawing described herein is used for providing the embodiment of the present invention is further understood, and constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is present configuration schematic diagram.
Labelling and corresponding parts title in accompanying drawing：
1- induction furnace, 2- coil, 3- coil clay layer, 4- inner liner, 5- electron beam gun.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in figure 1, a kind of induction furnace based on electron beam gun of the present invention melts silicon plays furnace apparatus, including induction furnace 1, sense
Stove 1 is internal to be cavity structure, is provided with coil 2 in the cavity of induction furnace 1, be provided with inside coil 2 coil clay layer 3,
And the interior die body being coaxially disposed, using steel plate welding formation overall structure, its top is cylinder-like structure to interior die body, cylindric
Bottom connected by arc closing and formed overall, generally, the surface of interior die body is smooth plate face, and weld connects into smooth
Structure, has filled inner liner 4 in the cavity between interior die body and coil clay layer 3, inner liner 4 using the mode of filling, progressively
Add and consolidate；After liner 4 sinter molding, 1 to 3 can be configured as the induction furnace 1 of melting, now above induction furnace 1
Electron beam gun 5, the job spotlight of electron beam gun 5 is located at the internal cavities bottom of induction furnace 1, and the technique of furnace lifting is as follows：
A silica flour or silico briquette are encased in the inside of intermediate frequency furnace by ()；
B () starts electron beam gun, using electron beam gun, silica flour or silico briquette are heated, prepared silicon liquid；
C (), while carrying out step (b), starts intermediate frequency furnace and is heated, its operating frequency is 120～130Hz；Entering
When row step (b) and step (c), also silicon liquid is stirred operating, operating process is：Using wooden stick, silicon liquid is carried out clockwise
Or unidirectional agitation counterclockwise, agitation 2～3 circle per minute；
D (), after silica flour or silico briquette are completely converted into silicon liquid, stop electron beam gun heating, completes furnace lifting.
In both examples above, the single capacity of intermediate frequency furnace is 3.5 tons, the specification according to intermediate frequency furnace and prior art,
Capacity can be improved to 5 tons, the furnace lifting time of single is 12 to 15 minutes, and the smelting time of single is 80～100 minutes, phase
For the mode of production of crucible, substantially increase production efficiency.
Above-described specific embodiment, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvement within the spirit and principles in the present invention, done etc., all should comprise
Within protection scope of the present invention.
Claims (8)
1. a kind of molten silicon of induction furnace based on electron beam gun is played furnace apparatus, including induction furnace (1), in the cavity of induction furnace (1)
Be provided with coil (2) it is characterised in that：It is provided with coil clay layer (3) inside coil (2), inside coil clay layer (3)
Fill compacting and be formed with inner liner (4), at induction furnace (1) top at least provided with one or more electron beam gun (5).
2. a kind of induction furnace based on electron beam gun according to claim 1 melt silicon play furnace apparatus it is characterised in that：Described
Electron beam gun (5) the direction of the launch from top to bottom, and the application point of electron beam gun be located at induction furnace (1) internal cavities bottom
Portion.
3. a kind of induction furnace based on electron beam gun according to claim 1 melt silicon play furnace apparatus it is characterised in that：Described
Induction furnace be intermediate frequency furnace, its operating frequency be 100～140Hz.
4. a kind of induction furnace based on electron beam gun according to claim 3 melt silicon play furnace apparatus it is characterised in that：Described
Intermediate frequency furnace, its operating frequency is 120～130Hz.
5. a kind of molten silicon of induction furnace based on electron beam gun plays furnace technology it is characterised in that comprising the following steps：
A silica flour or silico briquette are encased in the inside of induction furnace (1) by ()；
B () starts electron beam gun, using electron beam gun, silica flour or silico briquette are heated, prepared silicon liquid；
C (), while carrying out step (b), starts induction furnace (1) and is heated；
D (), after silica flour or silico briquette are completely converted into silicon liquid, stop electron beam gun heating, completes furnace lifting.
6. a kind of induction furnace based on electron beam gun according to claim 5 melt silicon play furnace technology it is characterised in that：Entering
When row step (b) and step (c), also silicon liquid is stirred operating, operating process is：Using wooden stick, silicon liquid is carried out clockwise
Or unidirectional agitation counterclockwise, agitation 2～3 circle per minute.
7. a kind of induction furnace based on electron beam gun according to claim 5 melt silicon play furnace technology it is characterised in that：Described
Induction furnace (1) be intermediate frequency furnace, its operating frequency be 100～140Hz.
8. a kind of induction furnace based on electron beam gun according to claim 7 melt silicon play furnace technology it is characterised in that：Described
Intermediate frequency furnace, its operating frequency is 120～130Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129949.7A CN106482514A (en) | 2016-12-09 | 2016-12-09 | A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129949.7A CN106482514A (en) | 2016-12-09 | 2016-12-09 | A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique |
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| CN201611129949.7A Pending CN106482514A (en) | 2016-12-09 | 2016-12-09 | A kind of induction furnace based on electron beam gun melts silicon and plays furnace apparatus and technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103708A1 (en) * | 2016-12-09 | 2018-06-14 | 成都斯力康科技股份有限公司 | Induction furnace lining forming structure and method for silicon residue smelting |
| WO2018103712A1 (en) * | 2016-12-09 | 2018-06-14 | 成都斯力康科技股份有限公司 | Process for producing silicon ingots by smelting silicon slag |
| CN110243177A (en) * | 2019-05-09 | 2019-09-17 | 永平县泰达废渣开发利用有限公司 | A kind of more monocrystalline silicon cutting slag method of smelting |
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| CN201937875U (en) * | 2011-01-14 | 2011-08-17 | 杭州因达电炉有限公司 | Coils special for large induction furnace |
| CN103353235A (en) * | 2013-07-26 | 2013-10-16 | 朱兴发 | Embedded slag type structure of heating element electrodes of electromagnetic induction slag smelting furnace |
| CN206247846U (en) * | 2016-12-09 | 2017-06-13 | 永平县泰达废渣开发利用有限公司 | A kind of molten silicon of induction furnace based on electron beam gun plays furnace apparatus |
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| PL189024B1 (en) * | 1999-07-26 | 2005-06-30 | Technologie Buczek Sa | Method of lining a furnace, in particular the induction-type one, with refractory material |
| JP2010100508A (en) * | 2008-10-23 | 2010-05-06 | Toyokazu Nakasone | Production method of high purity silicon |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103708A1 (en) * | 2016-12-09 | 2018-06-14 | 成都斯力康科技股份有限公司 | Induction furnace lining forming structure and method for silicon residue smelting |
| WO2018103712A1 (en) * | 2016-12-09 | 2018-06-14 | 成都斯力康科技股份有限公司 | Process for producing silicon ingots by smelting silicon slag |
| CN110243177A (en) * | 2019-05-09 | 2019-09-17 | 永平县泰达废渣开发利用有限公司 | A kind of more monocrystalline silicon cutting slag method of smelting |
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Effective date of registration: 20171113 Address after: 610000 No. 1, unit 1, No. 57, No. 2, community street, Chengdu Town, Tianfu District, Sichuan Applicant after: Chengdu Sili Kang Polytron Technologies Inc Address before: Su Tun Cun 672600 Yunnan Autonomous Prefecture of Dali Bonan town Applicant before: Limited company of development and utilization of waste residue in Yongping County of TEDA |
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Application publication date: 20170308 |