CN209406572U - A kind of silicon material selects device - Google Patents
A kind of silicon material selects device Download PDFInfo
- Publication number
- CN209406572U CN209406572U CN201821789896.6U CN201821789896U CN209406572U CN 209406572 U CN209406572 U CN 209406572U CN 201821789896 U CN201821789896 U CN 201821789896U CN 209406572 U CN209406572 U CN 209406572U
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- impurity
- collecting vessel
- silicon material
- magnetic
- roller
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Abstract
The utility model relates to a kind of silicon materials to select device, belong to photovoltaic technology field, it solves the problems, such as that it is not high to select purity for silicon material in the prior art.It includes rack that this silicon material, which selects device, cabinet, the cabinet is equipped with feed hopper, equipped with the first magnetic roller and the power device for driving the first magnetic roller to rotate in cabinet, first magnetic roller rotates counterclockwise, first magnetic roller includes the first roller first magnetic system arc-shaped with magnetic roller left side is set to, it is located at left side below first magnetic roller and is equipped with silicon material collecting vessel, it is located at right side below first magnetic roller and is equipped with the first impurity collecting vessel, it is located above the first impurity collecting vessel on the right side of first magnetic roller and is equipped with material scraping plate, top is equipped with impurity collecting drum on the right side of first magnetic roller, impurity collecting drum is tubular electromagnet.This silicon material selects device and carries out preliminary magnetic separation by the first magnetic roller, carries out secondary magnetic separation by feeding plate, so that the recycling silicon material magnetic impurity after being selected accomplishes minimum, effectively increases the purity of silicon material.
Description
Technical field
The utility model belongs to photovoltaic technology field, and be related to a kind of silicon material selects device, especially a kind of removal silicon material
Metal impurities select device.
Background technique
Solar power generation is the important means of human use's solar energy, and solar battery is then the master for realizing photoelectric conversion
Device is wanted, the photoelectric conversion efficiency of solar battery determines the utilization conversion ratio of solar energy source.In recent years, world's solar-electricity
The speed of the yield in pond and installed capacity every year all 30% is fast-developing.Currently, the accumulative installed capacity in the whole world is 25.4GW, in advance
It counts the installed capacity of the year two thousand twenty whole world and is up to 278GW.
Recently as silicon solar industry high speed development, market competition is more and more fierce, to reduce silicon wafer production cost,
Silicon wafer is improved in market competition, the useless silicon material that production process generates need to be recycled and be used.It recycles and exists in the broken silicon material used
Iron, cobalt, nickel contamination in magnetic metal will lead to silicon wafer and form defect, seriously affect silicon chip battery efficiency.Therefore for recycling silicon
Selecting for material becomes the important ring for influencing polysilicon chip.Mostly use dry type multiple roll magnetic separator in silicon material greatly in the prior art
Metal impurities selected, however in selection process, if magnetic roller magnetism is stronger, the impurity that will lead in magnetic roller not can be removed,
Magnetic roller magnetism is weaker, and will affect and select efficiency, causes magnetic metal impurity to be selected unclean.
Utility model content
The purpose of this utility model is the presence of the above problem in view of the prior art, propose it is a kind of facilitate metal impurities return
The silicon material of receipts selects device.
The purpose of this utility model can be realized by the following technical scheme: a kind of silicon material selects device, including rack, case
Body, the cabinet are equipped with feed hopper, the power dress equipped with the first magnetic roller and driving the first magnetic roller rotation in the cabinet
It sets, it is characterised in that: first magnetic roller rotates counterclockwise, and first magnetic roller includes the first roller and is set to magnetic roller
The first arc-shaped magnetic system of left side, the first magnetic roller lower section are located at left side and are equipped with silicon material collecting vessel, first magnetic roller
Lower section is located at right side equipped with the first impurity collecting vessel, and the first magnetic roller right side, which is located to be equipped with above the first impurity collecting vessel, scrapes
Flitch, the first magnetic roller right side top are equipped with impurity collecting drum, and the impurity collecting drum is tubular electromagnet.
It is selected in device in above-mentioned silicon material, the power device includes power motor, speed reducer and is set to first
The center axis connection of bearing on roller, the output shaft of the speed reducer and the first roller.
The magnetic system of first magnetic roller is located at left side, and the silicon material of the cabinet entered by feed hopper drives under the rotation of the first roller
Silicon material moves downward, and silicon material on the outside of the first roller due to without magnetism, then falling into silicon material collecting vessel, the metal in silicon material
Impurity is then because the magnetic fields of the first magnetic system are tightly attached on the outside of the first roller, when the rotation of the first roller, due to being tightly attached to the
Metal impurities on the outside of one roller are gradually distance from magnetic field where the first magnetic system, then the metal impurities of weak magnetic under the effect of gravity from
Dynamic to fall into the first impurity collecting vessel, ferromagnetic large granular impurity also falls into the first impurity collecting vessel under the action of material scraping plate
It is interior.For some ferromagnetism little particle impurity, both not because gravity is fallen or is not scraped by material scraping plate, then using miscellaneous
Electromagnet on matter collecting drum forms high-intensity magnetic field after being powered, and in remaining impurity absorption to impurity collecting drum, will complete after collecting,
Electromagnet power-off, because not have magnetism that the impurity being adsorbed on impurity collecting drum is made to fall to first automatically miscellaneous for impurity collecting drum
In matter collecting vessel, the strong and weak magnetic metal impurities of the size particles in all silicon materials are all collected into the collection of the first impurity since then
In bucket.
It is selected in device in above-mentioned silicon material, the silicon material collecting vessel bottom is equipped with secondary discharge port, and described is secondary
It is equipped with inclined feeding plate below discharge port, the feeding plate rear end is equipped with strip electromagnet, on the feeding plate
Equipped with vibration motor, the feeding plate end is equipped with finished product collecting vessel and the second impurity collecting vessel, the rack are equipped with
The switching device of changeable finished product collecting vessel and the second impurity collecting vessel.
By the unlatching of strip electromagnet, when so that silicon material and impurity gliding along feeding plate, impurity is adsorbed on blanking
On plate, silicon material is automatically fallen into finished product collecting vessel, after blanking to be done, when needing to clear up the impurity adsorbed on feeding plate, is only needed
Feeding plate end is switched into the second impurity collecting vessel, then the power supply of tripping magnet, and it is sliding by impurity to open vibration motor
It drops down onto the second impurity collecting vessel.First magnetic roller carries out the first step to the magnetic impurity in silicon material and selects, and feeding plate is to silicon
Magnetic impurity in material is selected for the second time, therefore secondary its impurity content when selecting is less, can after working long hours,
Switch the second impurity collecting vessel before maintenance shut-downs, the impurity on feeding plate is recycled.
It is selected in device in above-mentioned silicon material, the switching device includes the extension board for being set to feeding plate end, institute
The extension board bottom stated is equipped with telescopic cylinder, and the extension board end is equipped with above-mentioned second impurity collecting vessel, when described stretches
When contracting cylinder stretches out, feeding plate is docked with extension board, and the impurity on feeding plate can be fallen directly into the second impurity collecting vessel, works as institute
When the telescopic cylinder stated is withdrawn, separated between extension board and feeding plate, the silicon material on feeding plate can fall directly into finished product collecting vessel
It is interior.
Alternatively, it is selected in device in above-mentioned silicon material, the switching device includes being set in rack
Switching cylinder, the finished product collecting vessel and the second impurity collecting vessel are connected, and are slideably positioned on the sliding rail in rack, institute
The piston rod for the switching cylinder stated is connect with finished product collecting vessel, and when switching cylinder and stretching out, finished product collecting vessel slides into along sliding rail falls
Flitch end, when cylinder is withdrawn, finished product collecting vessel is withdrawn, and the second impurity collecting vessel is located at feeding plate end.
The another object of the utility model is to provide a kind of above-mentioned silicon material and selects the method for selecting of device, including walks as follows
It is rapid: 1, open the first magnetic roller, so that the first roller rotates counterclockwise, pour into silicon material after crushing into feed hopper, silicon material with
The rotation of the first roller, the first roller slide to the left, non-magnetic silicon material then falls into silicon material on the outside of the first roller and collects
In bucket, magnetic impurity is then because the magnetic fields of the first magnetic system are adsorbed on the outside of the first roller；
2, the first roller is continued to rotate to when driving the impurity to turn to below the first magnetic system along the first roller, since magnetic field is strong
Degree reduces, and the impurity of low magnetism then fallen in the first impurity collecting vessel due to gravity, the ferromagnetism impurity not fallen after
It is continuous to be adsorbed on the outside of the first roller；
3, the first roller turns to scraper Board position, then under the active force of material scraping plate, the strong magnetic impurity of bulky grain is scraped
It falls into the first impurity collecting vessel；
4, above the first rollers roll to material scraping plate, only it is left the little particle impurity of some strong magnetic on the first roller, at this time
Electromagnet is opened, impurity collecting drum forms high-intensity magnetic field, complete by the little particle impurity absorption to impurity collecting drum on the first roller
It is collected at impurity last on the first roller；
5, on impurity collecting drum after adsorbing contaminant, close electromagnet, then it is remaining since the magnetic field on impurity collecting drum disappears
Impurity fallen in the first impurity collecting vessel automatically；
6, the recycling silicon material in silicon material collecting vessel slides to feeding plate, opens vibration motor, to landing on feeding plate
Silicon material carry out vibration blanking, at this time open strip electromagnet, then under the magnetic fields of strip electromagnet, have magnetism
Impurity be adsorbed on feeding plate bottom, not magnetic silicon material then continues to slide to the finished product collecting vessel of feeding plate end；
7, after completing finished product collection, switching device is opened, so that the end of feeding plate is switched to the second impurity collecting vessel, so
Strip electromagnet powers off afterwards, and in the case where lacking magnetic field, the impurity on feeding plate falls into the under the vibration of vibration motor
In two impurity collecting vessels, the separation of all magnetic impurities and silicon material is so far completed.
In above step, step 2,3,4,5 and step 6,7 can carry out simultaneously.
In the method for selecting that above-mentioned silicon material selects device, the strip electromagnet is when impurity recycles, back and forth
Switch electromagnet polarity, then disconnect electromagnet power supply again, the impurity magnetic field disorder being adsorbed on feeding plate can be made in this way,
It will not can not be slid because of impurity Long-Term Sorption same position, promote impurity blanking efficiency, so that impurity collection is cleaner.
Compared with prior art, this silicon material selects device and carries out preliminary magnetic separation by the first magnetic roller, is carried out by feeding plate
Secondary magnetic separation, the enterprising gravity screening of the first magnetic roller, scraper plate screening and the screening of impurity collecting drum three-wheel, by the impurity in the first magnetic roller
Collection is clean, and secondary magnetic separation further increases impurity and collect successfully using simultaneously adsorbing contaminant is slowly collected in vibration blanking process
Rate effectively increases the purity of silicon material so that the recycling silicon material magnetic impurity after being selected accomplishes minimum.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that this silicon material selects device.
In figure, 1, rack；11, cabinet；2, feed hopper；3, the first magnetic roller；31, the first magnetic system；4, the first impurity collecting vessel；
41, silicon material collecting vessel；411, secondary discharge port；42, material scraping plate；5, impurity collecting drum；6, feeding plate；61, strip electromagnet；
62, vibration motor；7, finished product collecting vessel；8, the second impurity collecting vessel；9, extension board；91, telescopic cylinder.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this silicon material selects device, including rack 1, cabinet 11, the cabinet 11 is equipped with feed hopper 2,
The power device of the first magnetic roller 3 and driving the first magnetic roller 3 rotation is equipped in the cabinet 11, it is characterised in that: described the
One magnetic roller 3 rotates counterclockwise, and first magnetic roller 3 includes the first roller first magnetic system arc-shaped with magnetic roller left side is set to
31, left side is located at below first magnetic roller 3 and is equipped with silicon material collecting vessel 41, is located at below first magnetic roller 3
Right side is equipped with the first impurity collecting vessel 4, is located above the first impurity collecting vessel 4 on the right side of first magnetic roller 3 and is equipped with material scraping plate
42, the 3 right side top of the first magnetic roller is equipped with impurity collecting drum 5, and the impurity collecting drum 5 is tubular electromagnet.
The power device includes power motor, speed reducer and the bearing being set on the first roller, the output shaft of the speed reducer
With the center axis connection of the first roller.
The magnetic system of first magnetic roller 3 is located at left side, and the silicon material of the cabinet 11 entered by feed hopper 2 is under the rotation of the first roller
Silicon material is driven to move downward, silicon material on the outside of the first roller due to without magnetism, then falling into silicon material collecting vessel 41, in silicon material
Metal impurities then because the magnetic fields of the first magnetic system 31 are tightly attached on the outside of the first roller, when the rotation of the first roller, due to
It is tightly attached to the metal impurities on the outside of the first roller and is gradually distance from 31 place magnetic field of the first magnetic system, then the metal impurities of weak magnetic is in weight
It is automatically fallen into the first impurity collecting vessel 4 under power effect, ferromagnetic large granular impurity is also fallen under the action of material scraping plate 42
In first impurity collecting vessel 4.For some ferromagnetism little particle impurity, both not because gravity is fallen or not by material scraping plate
42 scrape, then form high-intensity magnetic field after being powered using the electromagnet on impurity collecting drum 5, and remaining impurity absorption to impurity is received
Collect on roller 5, completes after collecting, electromagnet power-off, because impurity collecting drum 5 to be adsorbed on impurity collecting drum 5 without magnetism
Impurity fallen in the first impurity collecting vessel 4 automatically, strong and weak magnetic metal impurities of size particles in all silicon materials since then
All it is collected into the first impurity collecting vessel 4.
This silicon material is selected in device, and 41 bottom of silicon material collecting vessel is equipped with secondary discharge port 411, it is described it is secondary go out
Inclined feeding plate 6 is equipped with below material mouth 411,6 rear end of feeding plate is equipped with strip electromagnet 61, the blanking
Plate 6 is equipped with vibration motor 62, and 6 end of feeding plate is equipped with finished product collecting vessel 7 and the second impurity collecting vessel 8, described
Rack 1 is equipped with the switching device of changeable finished product collecting vessel 7 and the second impurity collecting vessel 8.The switching device includes setting
It is placed in the extension board 9 of 6 end of feeding plate, 9 bottom of extension board is equipped with telescopic cylinder 91, and 9 end of extension board is set
There is above-mentioned second impurity collecting vessel 8, when the telescopic cylinder 91 stretches out, feeding plate 6 is docked with extension board 9, on feeding plate 6
Impurity can fall directly into the second impurity collecting vessel 8, when the telescopic cylinder 91 is withdrawn, extension board 9 and feeding plate 6 it
Between separate, the silicon material on feeding plate 6 can be fallen directly into finished product collecting vessel 7.
By the unlatching of strip electromagnet 61, when so that silicon material and impurity gliding along feeding plate 6, impurity, which is adsorbed on, to be fallen
On flitch 6, silicon material is automatically fallen into finished product collecting vessel 7, after blanking to be done, when needing to clear up the impurity adsorbed on feeding plate 6,
6 end of feeding plate only need to be switched to the second impurity collecting vessel 8, then the power supply of tripping magnet, and open vibration motor 62
Impurity is slid to the second impurity collecting vessel 8.First magnetic roller 3 carries out the first step to the magnetic impurity in silicon material and selects,
Feeding plate 6 selects the magnetic impurity in silicon material for the second time, therefore secondary its impurity content when selecting is less, can be in length
After time service, switches the second impurity collecting vessel 8 before maintenance shut-downs, the impurity on feeding plate 6 is recycled.
The course of work that this silicon material selects device is as follows: 1, the first magnetic roller 3 is opened, so that the first roller rotates counterclockwise,
Pour into silicon material after crushing into feed hopper 2, with the rotation of the first roller, the first roller slides silicon material to the left, no magnetic
Property silicon material then fall into silicon material collecting vessel 41 on the outside of the first roller, magnetic impurity is then because of the magnetic field of the first magnetic system 31
Effect is adsorbed on the outside of the first roller；
2, the first roller continue to rotate to drive impurity turn to the first 31 lower section of magnetic system along the first roller when, due to magnetic field
Strength reduction, the impurity of low magnetism are then fallen in the first impurity collecting vessel 4 due to gravity, the ferromagnetism impurity not fallen
Continue to be adsorbed on the outside of the first roller；
3, the first roller turns to 42 position of material scraping plate, then under the active force of material scraping plate 42, the strong magnetic impurity quilt of bulky grain
It scrapes and falls into the first impurity collecting vessel 4；
4, above the first rollers roll to material scraping plate 42, only it is left the little particle impurity of some strong magnetic on the first roller, this
Shi Kaiqi electromagnet, impurity collecting drum 5 forms high-intensity magnetic field, by the little particle impurity absorption on the first roller to impurity collecting drum 5
On, it completes last impurity on the first roller and collects；
5, on impurity collecting drum 5 after adsorbing contaminant, close electromagnet, then it is residual since the magnetic field on impurity collecting drum 5 disappears
Remaining impurity is fallen to automatically in the first impurity collecting vessel 4；
6, the recycling silicon material in silicon material collecting vessel 41 slides to feeding plate 6, opens vibration motor 62, to landing in blanking
Silicon material on plate 6 carries out vibration blanking, opens strip electromagnet 61 at this time, then in the magnetic fields of strip electromagnet 61
Under, have magnetic impurity and be adsorbed on 6 bottom of feeding plate, not magnetic silicon material then continues to slide to 6 end of feeding plate
In finished product collecting vessel 7；
7, after completing finished product collection, switching device is opened, so that the end of feeding plate 6 is switched to the second impurity collecting vessel 8,
Then strip electromagnet 61 powers off, and in the case where lacking magnetic field, the impurity on feeding plate 6 is under the vibration of vibration motor 62
It falls into the second impurity collecting vessel 8, so far completes the separation of all magnetic impurities and silicon material.
In above step, step 2,3,4,5 and step 6,7 can carry out simultaneously.
For the blanking for further strengthening impurity, in the strip electromagnet 61 when impurity recycles, reciprocal switching electricity
Then magnet polarities disconnect electromagnet power supply again, can make the impurity magnetic field disorder being adsorbed on feeding plate 6 in this way, will not
It can not be slid because of impurity Long-Term Sorption same position, promote impurity blanking efficiency, so that impurity collection is cleaner.
This silicon material selects device and carries out preliminary magnetic separation by the first magnetic roller 3, carries out secondary magnetic separation by feeding plate 6, and first
The screening of the enterprising gravity of magnetic roller 3, scraper plate screening and the screening of 5 three-wheel of impurity collecting drum, the impurity in the first magnetic roller 3 is collected completely,
Secondary magnetic separation further increases impurity and collects success rate using simultaneously adsorbing contaminant is slowly collected in vibration blanking process, so that by
Recycling silicon material magnetic impurity after selecting accomplishes minimum, effectively increases the purity of silicon material.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (5)
1. a kind of silicon material selects device, including rack, cabinet, the cabinet is equipped with feed hopper, is equipped in the cabinet
The power device of first magnetic roller and driving the first magnetic roller rotation, it is characterised in that: first magnetic roller rotates counterclockwise, described
The first magnetic roller include the first roller and be set to arc-shaped the first magnetic system on the left of magnetic roller, be located at below first magnetic roller
Left side is equipped with silicon material collecting vessel, is located at right side below first magnetic roller and is equipped with the first impurity collecting vessel, first magnetic
It is located above the first impurity collecting vessel on the right side of roller and is equipped with material scraping plate, top is equipped with impurity collecting drum on the right side of first magnetic roller,
The impurity collecting drum is tubular electromagnet.
2. a kind of silicon material according to claim 1 selects device, it is characterised in that: the power device includes power electric
The center axis connection of machine, speed reducer and the bearing being set on the first roller, the output shaft of the speed reducer and the first roller.
3. a kind of silicon material according to claim 1 selects device, it is characterised in that: the silicon material collecting vessel bottom is equipped with
Secondary discharge port, the secondary discharge port lower section are equipped with inclined feeding plate, and the feeding plate rear end is equipped with strip
Electromagnet, the feeding plate are equipped with vibration motor, and the feeding plate end is equipped with finished product collecting vessel and the second impurity is received
Collect bucket, the rack is equipped with the switching device of changeable finished product collecting vessel and the second impurity collecting vessel.
4. a kind of silicon material according to claim 3 selects device, it is characterised in that: the switching device includes being set to
The extension board of feeding plate end, the extension board bottom are equipped with telescopic cylinder, and the extension board end is equipped with above-mentioned second
Impurity collecting vessel, when the telescopic cylinder stretches out, feeding plate is docked with extension board, and the impurity on feeding plate can be fallen directly into
In second impurity collecting vessel, when the telescopic cylinder is withdrawn, separated between extension board and feeding plate, the silicon material on feeding plate
It can fall directly into finished product collecting vessel.
5. a kind of silicon material according to claim 3 selects device, it is characterised in that: the switching device includes being set to
Switching cylinder in rack, the finished product collecting vessel and the second impurity collecting vessel are connected, and are slideably positioned in the cunning in rack
On rail, the piston rod of the switching cylinder is connect with finished product collecting vessel, and when switching cylinder and stretching out, finished product collecting vessel is along sliding rail
Feeding plate end is slid into, when cylinder is withdrawn, finished product collecting vessel is withdrawn, and the second impurity collecting vessel is located at feeding plate end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821789896.6U CN209406572U (en) | 2018-10-31 | 2018-10-31 | A kind of silicon material selects device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821789896.6U CN209406572U (en) | 2018-10-31 | 2018-10-31 | A kind of silicon material selects device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209406572U true CN209406572U (en) | 2019-09-20 |
Family
ID=67933001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821789896.6U Expired - Fee Related CN209406572U (en) | 2018-10-31 | 2018-10-31 | A kind of silicon material selects device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209406572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248781A (en) * | 2018-10-31 | 2019-01-22 | 浙江羿阳太阳能科技有限公司 | A kind of silicon material selects device and method of selecting |
-
2018
- 2018-10-31 CN CN201821789896.6U patent/CN209406572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248781A (en) * | 2018-10-31 | 2019-01-22 | 浙江羿阳太阳能科技有限公司 | A kind of silicon material selects device and method of selecting |
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| Date | Code | Title | Description |
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| 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: 20190920 Termination date: 20201031 |