CN206318710U - A kind of equipment for removing surface of the silicon liquid slag - Google Patents
A kind of equipment for removing surface of the silicon liquid slag Download PDFInfo
- Publication number
- CN206318710U CN206318710U CN201621228505.4U CN201621228505U CN206318710U CN 206318710 U CN206318710 U CN 206318710U CN 201621228505 U CN201621228505 U CN 201621228505U CN 206318710 U CN206318710 U CN 206318710U
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- China
- Prior art keywords
- crucible
- slugging
- slag
- melting kettle
- scummer
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Abstract
The utility model is related to a kind of equipment for removing surface of the silicon liquid slag, including melting kettle, slugging crucible, slag bag, scummer, elevating lever and track.Slugging crucible is bottomless, and in its underpart, docking is equipped with slag bag；Scummer is arranged on elevating lever lower end.Elevating lever can be lifted above melting kettle and slugging crucible respectively, and be moved back and forth along track between melting kettle and slugging crucible, and scummer is then driven by elevating lever and moved together.Due to fishing for slag with scummer and being automatically discharged into slag bag in the utility model, melting kettle need not be tilted pour out slag from discharging opening, it is to avoid discharging opening bonding slag, improve the service life of melting kettle, the danger of operation is avoided, and prevents the waste of silicon liquid.
Description
Technical field
The utility model belongs to melting technique, is a kind of equipment for removing surface of the silicon liquid slag.
Background technology
At present, in the technique that Physical produces solar-grade polysilicon, an important link is exactly to utilize slag practice
Nonmetallic inclusion is removed, phosphorus, boron etc. is primarily referred to as.Its main processes is exactly to utilize the silicon in intermediate frequency furnace fusion crucible
Material, then adds slag former in silicon liquid, after blowing, stirring, clarify, the non-gold such as most phosphorus, boron among silicon liquid
Category impurity is transferred in the slag for swim in surface of the silicon liquid to be removed.In this technical process, how quickly, totally
Slag is discharged on ground from silicon liquid, shortens the process time, and the service life of the crucible for costliness of improving price, is always one in industry
Important research topic.
In existing technology, what is taken is that the method toppled over pours out slag.Because the fusing point of slag is below 1000 DEG C,
Far below the temperature of silicon liquid, slag is in a liquid state and swims in surface of the silicon liquid, it is possible to by tilting melting kettle, by slag from
The discharging opening of melting kettle is poured out.
Above-mentioned technical proposal has following two major defects：
(1) slag is in a liquid state and swims in surface of the silicon liquid, and the angle bad control of melting kettle is tilted when pouring out, and angle is big
Silicon liquid can also be poured out, cause to waste.The small slag of angle is not clean, reduces deimpurity efficiency, elongates
Process time, power consumption is caused to increase.
(2) when toppling over slag from the discharging opening of melting kettle, the slag one poured out in melting kettle discharging opening contacts the external world
Air, temperature drops to less than 1000 DEG C immediately, and then condenses into the discharging opening that sticky semisolid is bonded in melting kettle, this
Discharging opening lifting step by step will be made, the difficulty of slag is poured out in increase.When reaching to a certain degree melting kettle is bonded in it is necessary to dispose
The slag of discharging opening, is either knocked out with hammer or melts with oxygen flame, both approaches to the discharging opening of melting kettle all
There is damage, reduce the service life of melting kettle, and have certain danger when operating.
The content of the invention
The problem of the utility model exists for existing technical scheme removes setting for surface of the silicon liquid slag there is provided a kind of
Standby, it can thoroughly eliminate above-mentioned defect, improve the service life of melting kettle, it is to avoid adjoint danger in operating process
It is dangerous.
The purpose of this utility model can be realized by following technical proposal：
A kind of equipment for removing surface of the silicon liquid slag, including melting kettle, slugging crucible, slag bag, scummer, elevating lever
And track；Slugging crucible is bottomless, and in its underpart, docking is equipped with slag bag；Scummer is arranged on elevating lever lower end；Elevating lever
It can lift, and be moved back along track between melting kettle and slugging crucible above melting kettle and slugging crucible respectively
Dynamic, scummer is then driven by elevating lever and moved together, can respectively be down into melting kettle and slugging crucible and melting is arrived in emersion
Above crucible and slugging crucible, and move back and forth along track between melting kettle and slugging crucible.
It is wound with the internal melting kettle induction coil for being connected with cooling water respectively in the outside of melting kettle and slugging crucible
With slugging crucible induction coil.
Elevating lever is moved by Serve Motor Control.
Scummer is made of graphite, and scummer is made up of disk and central upright stanchion, uniform multiple manholes on disk.
The disk external diameter of scummer is smaller 50-200 millimeters than the internal diameter of melting kettle, a diameter of 5-- of manhole on disk
30 millimeters.
Slag bag is placed on mobile liftable dolly.
Track is fixed by upright supports.
Four retractable argon gas blowpipes are evenly equipped with melting kettle place suitable for reading, it is solid equipped with four at slugging crucible wall
Fixed pattern argon gas blowpipe；The air blowing flow of retractable argon gas blowpipe always is 80-200L/Min, the air blowing of fixed argon gas blowpipe always
Flow is 30-100L/Min.
Sealing gasket is provided between slugging crucible and slag bag, one layer of drying is lined with slag bag and matrix is organized into
Yellow sand.
Effect of the present utility model is：
Due to fishing for slag with scummer and being automatically discharged into slag bag in the utility model, it is not necessary to tilt melting earthenware
Crucible pours out slag from discharging opening, it is to avoid discharging opening bonding slag, improve the service life of melting kettle, it is to avoid operation
Danger, and prevent the waste of silicon liquid.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of each part of the utility model；
Fig. 2 is scummer schematic diagram；
Fig. 3 is the top view of scummer shown in Fig. 2；
Fig. 4 standby scummers that are defined drag for the schematic diagram of slag from melting kettle；
Fig. 5 is the schematic diagram that scummer just pulls slag out from melting kettle；
Fig. 6 is that the slag fusing of adhesion is discharged into the schematic diagram of slag bag on scummer.
Marked in figure：Melting kettle 1, slugging crucible 2, slag bag 3, mobile liftable dolly 4, melting kettle induction coil
5, slugging crucible induction coil 6, scummer 7, elevating lever 8, track 9, column 10, silicon liquid 11, slag 12, manhole 13 can
The argon gas blowpipe 14 of folding and unfolding, fixed argon gas blowpipe 15, sealing gasket 16, yellow sand 17.
Embodiment
Referring to Fig. 1, a kind of equipment of removing surface of the silicon liquid slag, including melting kettle 1, slugging crucible 2, the and of slag bag 3
Scummer 7.It is wound with the internal melting kettle line of induction for being connected with cooling water respectively in the outside of melting kettle 1 and slugging crucible 2
Circle 5 and slugging crucible induction coil 6.Slugging crucible 2 is bottomless, and in its underpart, docking is equipped with slag bag 3, and slag bag 3 is laid
On mobile liftable dolly 4.
The scummer 7 being made of graphite is arranged on the lower end of elevating lever 8, and scummer 7 is made up of (see figure disk and central upright stanchion
2nd, Fig. 3).Central upright stanchion is fixed with the lower end of elevating lever 8.The disk external diameter of scummer 7 than melting kettle 1 the small 50-200 of internal diameter in the least
Uniform multiple manholes 13 on rice, disk, through-hole diameter is 5--30 millimeters, and the viscosity of slag is bigger, and through-hole diameter is also got over
Greatly.Elevating lever 8 can be lifted in melting kettle 1 and the top of slugging crucible 2 respectively by Serve Motor Control, and along track 9 molten
Move back and forth between refining crucible 1 and slugging crucible 2, scummer 7 is then driven by elevating lever 8 and moved together, can be down into respectively molten
Refine in crucible 1 and slugging crucible 2 and emersion is to melting kettle 1 and the top of slugging crucible 2, and along track 9 in the He of melting kettle 1
Move back and forth between slugging crucible 2.Track 9 supports fixation by column 10.
The internal melting kettle induction coil 5 for being connected with cooling water of the outside of melting kettle 1 winding, the outside of slugging crucible 2 is also twined
Around the internal slugging crucible induction coil 6 for being connected with cooling water.
Referring to Fig. 4, four retractable argon gas blowpipes 14, its total air blowing flow are evenly equipped with the place suitable for reading of melting kettle 1
For 80-200L/Min.Retractable argon gas blowpipe 14 with folding and unfolding due to that can will not hinder scummer 7 to pass in and out the interior of melting kettle 1
Portion.
Referring to Fig. 6, in the side-walls of slugging crucible 2 equipped with four fixed argon gas blowpipes 15, its total air blowing flow is 30-
100L/Min。
Referring to Fig. 1 and Fig. 6, sealing gasket 16 is provided between slugging crucible 2 and slag bag 3, mainly prevents from being blown into argon gas
When gas leakage, another effect be when slag bag 3 is contacted with slugging crucible 2 upwards by liftable dolly 4, play one delay
Punching is acted on.One layer of drying is lined with slag bag 3 and the yellow sand 17 of matrix is organized into.
The course of work of the present utility model is：
Slag former is added in the silicon liquid 11 of the melting in melting kettle 1, after blowing, stirring, clarify, is put into and drags for slag
Process.See Fig. 1, then the surface for making elevating lever 8 drive scummer 7 to be moved to melting kettle 1 first declines and sink to silicon liquid 11
It is interior.The electric current of melting kettle induction coil 5 is adjusted, the temperature of silicon liquid 11 is maintained between 1440 DEG C to 1480 DEG C, puts down four
The retractable argon gas blowpipe 14 of root, sprays argon gas, one effect of blowing argon gas is slag 12 is cooled, another towards the surface of silicon liquid 11
Individual effect is to prevent that the scummer 7 made under high temperature of graphite is oxidized baked erosion.Flow is controlled in the range of 80-200L/Min,
Now the temperature of slag 12 can decline immediately.About blowing argon gas are after 1 minute, and the surface of slag 12 can condense into sticky half admittedly
Body shape (as shown in Figure 4).At this moment stop blowing argon gas, pack up retractable argon gas blowpipe 14, lift scummer 7, substantial amounts of slag
12, which will be taken up, comes (as shown in Figure 5).The slag 12 taken up is lost after the heating of silicon liquid 11, and temperature continues to decline, and treats slag
12 do not drip still further below, it is possible to continue to lift up scummer 7 until leaving completely after melting kettle 1, it is possible to along track 9,
It is moved to the surface of slugging crucible 2.
Referring to Fig. 6, scummer 7 is declined to the centre for sinking to slugging crucible 2, then by four fixed argon gas blowpipes 15,
Argon gas is blown into inside to slugging crucible 2,30-100L/Min is arrived in its total air blowing flow control, and the purpose for being blown into argon gas is also anti-
Only prevent that the scummer 7 made under high temperature of graphite is oxidized baked erosion, slugging crucible induction coil 6 is passed through high frequency alternating current,
Its frequency is heated up scummer 7 between 500Hz-1000Hz, can make sensing heating only using this frequency range
Produce on the surface of scummer 7, slag 12 is heated fusing with most fast speed, and be dropped in the slag bag 3 of lower section.Treat
After the slag 12 being bonded on scummer 7 is all dripped off, you can stop heating.Now, if also to be dragged for slag next time, immediately
Stopping is blown into argon gas, scummer 7 is returned to the surface of melting kettle, slag operation is dragged for next time.Otherwise, scummer should be treated
Dropped at a temperature of 7 after less than 300 DEG C, then stop blowing argon gas.
Gas leakage when sealing gasket 16 between slag bag 3 and slugging crucible 2 mainly prevents from being blown into argon gas, another effect
It is, when slag bag 3 is contacted with slagging-off crucible 11 upwards by lift truck 14, to play a cushioning effect.
The yellow sand 21 dried and be organized into matrix being lined with slag bag 3, allows the slag 12 fallen on very
Easily it is cleaned out.
Slag bag 3 is filled after slag 12, and lift truck 4 is fallen, and drags it to the place of formulation, outwells slag 12.
Claims (9)
1. a kind of equipment for removing surface of the silicon liquid slag, it is characterised in that：Including melting kettle (1), slugging crucible (2), slag
Wrap (3), scummer (7), elevating lever (8) and track (9)；Slugging crucible (2) is bottomless, and in its underpart, docking is equipped with slag bag
(3)；Scummer (7) is arranged on elevating lever (8) lower end；Elevating lever (8) can be respectively on melting kettle (1) and slugging crucible (2)
Side's lifting, and move back and forth along track (9) between melting kettle (1) and slugging crucible (2), scummer (7) is then by lifting
Bar (8) drives and moved together, can be down into respectively in melting kettle (1) and slugging crucible (2) and emersion arrive melting kettle (1) and
Above slugging crucible (2), and move back and forth along track (9) between melting kettle (1) and slugging crucible (2).
2. equipment according to claim 1, it is characterised in that：Distinguish in the outside of melting kettle (1) and slugging crucible (2)
It is wound with the internal melting kettle induction coil (5) and slugging crucible induction coil (6) for being connected with cooling water.
3. equipment according to claim 1, it is characterised in that：Elevating lever (8) is moved by Serve Motor Control.
4. equipment according to claim 1, it is characterised in that：Scummer (7) is made of graphite, and scummer (7) is by disk
Constituted with central upright stanchion, uniform multiple manholes (13) on disk.
5. equipment according to claim 4, it is characterised in that：The disk external diameter of scummer (7) is interior than melting kettle (1)
Footpath is small 50-200 millimeters, and manhole (13) is a diameter of 5--30 millimeters on disk.
6. equipment according to claim 1, it is characterised in that：Slag bag (3) is placed on mobile liftable dolly (4).
7. equipment according to claim 1, it is characterised in that：Track (9) is supported by column (10) and fixed.
8. equipment according to claim 1, it is characterised in that：Being evenly equipped with four at melting kettle (1) place suitable for reading can folding and unfolding
Argon gas blowpipe (14), in slugging crucible (2) side-walls equipped with four fixed argon gas blowpipes (15)；Retractable argon gas blowpipe
(14) total air blowing flow is 80-200L/Min, and the total air blowing flow of fixed argon gas blowpipe (15) is 30-100L/Min.
9. equipment according to claim 1, it is characterised in that：Provided with sealing between slugging crucible (2) and slag bag (3)
Pad (16), be lined with one layer of drying in slag bag (3) and be organized into the yellow sand (17) of matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228505.4U CN206318710U (en) | 2016-11-16 | 2016-11-16 | A kind of equipment for removing surface of the silicon liquid slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228505.4U CN206318710U (en) | 2016-11-16 | 2016-11-16 | A kind of equipment for removing surface of the silicon liquid slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206318710U true CN206318710U (en) | 2017-07-11 |
Family
ID=59265968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621228505.4U Expired - Fee Related CN206318710U (en) | 2016-11-16 | 2016-11-16 | A kind of equipment for removing surface of the silicon liquid slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206318710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066737A (en) * | 2020-09-04 | 2020-12-11 | 江苏隆达超合金航材有限公司 | Simple and efficient floating slag salvaging device and method |
-
2016
- 2016-11-16 CN CN201621228505.4U patent/CN206318710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066737A (en) * | 2020-09-04 | 2020-12-11 | 江苏隆达超合金航材有限公司 | Simple and efficient floating slag salvaging device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170711 Termination date: 20181116 |