EP3554723A1 - Separating device for polycrystalline silicon - Google Patents
Separating device for polycrystalline siliconInfo
- Publication number
- EP3554723A1 EP3554723A1 EP17746082.1A EP17746082A EP3554723A1 EP 3554723 A1 EP3554723 A1 EP 3554723A1 EP 17746082 A EP17746082 A EP 17746082A EP 3554723 A1 EP3554723 A1 EP 3554723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polysilicon
- openings
- screen
- sieve
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 67
- 229920005591 polysilicon Polymers 0.000 claims description 59
- 238000000926 separation method Methods 0.000 claims description 22
- 230000008021 deposition Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 18
- 239000007789 gas Substances 0.000 description 16
- 239000012634 fragment Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 15
- 238000000151 deposition Methods 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 238000005192 partition Methods 0.000 description 11
- 238000012216 screening Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 239000010703 silicon Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 229910003481 amorphous carbon Inorganic materials 0.000 description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 238000007873 sieving Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000011856 silicon-based particle Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920001774 Perfluoroether Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101001042415 Cratylia mollis Mannose/glucose-specific lectin Cramoll Proteins 0.000 description 1
- 102100029775 Eukaryotic translation initiation factor 1 Human genes 0.000 description 1
- 101001012787 Homo sapiens Eukaryotic translation initiation factor 1 Proteins 0.000 description 1
- 101000643378 Homo sapiens Serine racemase Proteins 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 150000004767 nitrides Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000004857 zone melting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
- B07B13/07—Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4654—Corrugated Screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
Definitions
- the invention relates to a deposition device for polysilicon.
- Polycrystalline silicon (polysilicon in short) serves as the starting material for
- Polycrystalline silicon is usually produced by means of the Siemens process. For most applications, the thus produced polycrystalline
- Silicon rods are broken down into small fragments, which are usually classified according to size.
- screening machines are used to sort or classify polycrystalline silicon after comminution into different size classes.
- polycrystalline silicon granules are produced in a fluidized bed reactor.
- the polysilicon granule is usually divided into two or more fractions or classes after its preparation by means of a sieve
- a screening machine is generally a machine for screening, ie the separation (separation) of solid mixtures to particle sizes.
- Planschwangsiebmaschinen occurs in litter screening machines in addition to the horizontal and a vertical screen acceleration.
- dust particles and fines are formed in such significant quantities that a yield loss during crystal pulling occurs without further screening or separation. Therefore, there is a need to separate small particles and dust from the polysilicon prior to crystal pulling.
- From DE 198 22 996 C1 is a separation device for elongated solid parts, which has a vibrating floor with a number extending in the conveying direction
- the object of the invention is achieved by a separation device for
- Polysilicon with at least one screen plate comprising a polysilicon feed region, a profiled region with peaks and valleys, one on the profiled area adjoining area with sieve openings, and one
- Removal area wherein the screen openings expand in the direction of the removal area, and arranged below the screen openings partition plate, which is horizontally and vertically displaceable.
- the screen plate according to the invention provides a partition plate which is arranged below the screen openings or the area with screen openings.
- Removal range can be varied because the partition plate is horizontally displaceable.
- the partition plate can also be moved vertically, so that the distance to the screen openings can be varied.
- the effective size of the screen openings can be varied.
- the separator plate can be arranged so that polysilicon of a size of less than or equal to 4 mm falls through the sieve opening and is separated from the remaining polysilicon via the separator plate.
- the partition plate may be inclined to the vertical, that the separated polysilicon is accommodated in a collecting container, while larger polysilicon also falls through the screen openings, but is taken up in another collecting container, which is arranged in the conveying direction behind the partition plate.
- the partition plate can therefore fulfill very different functions.
- the object is also achieved by a method wherein Polysiliciunn on the
- Sieve plate of a deposition device according to the invention is applied, which is set in such a way that the Polysiliciunn a movement in
- Polysilicon is separated, wherein the discontinued polysilicon is processed without the separated small particle polysilicon.
- the position and height of the separator plate is chosen in one embodiment depending on how much the polysilicon has been vibrated.
- the partition plate preferably has a distance to the wire stretch of 5 mm to 20 mm, more preferably a distance of 1 mm to 5 mm.
- Small-particle polysilicon is to be understood as meaning a subset of the discontinued amount of polysilicon which is to be separated off by means of the sieve system.
- the finely divided polysilicon thus corresponds to the fraction to be separated.
- the screen plate comprises a feed area in which the polysilicon is applied.
- the polysilicon is conveyed by means of a conveyor trough
- the screen plate also comprises a profiled area with grooves or grooves or generally depressions and projections, so that the profiled area depressions and peaks.
- the screen plate comprises - next to the profiled area - an area with screen openings.
- the screen openings are arranged in the conveying direction immediately behind the wells of the profiled area.
- the tips of the profiled area continue into the area with screen openings, so that the entire screen plate is profiled, but the screen plate has screen openings instead of depressions at its rear end in the conveying direction.
- the profile of the profiled area may differ from the profile in the area of the sieve openings.
- the latter may be particularly advantageous if the Siebrow or with the polysilicon in
- the separation of the fine fraction or small fragments / particles thus takes place via the sieve openings of the sieve plate in conjunction with the separating plate.
- Fragments / particles received by a arranged below the screen openings of the screen plate collecting container are received by a arranged below the screen openings of the screen plate collecting container. Larger fragments are in the profiled area over the tips to
- the removal area is connected to a conveyor trough, over which the larger fragments are removed.
- another screen plate may join to separate another fraction from the polysilicon.
- the invention thus provides a screen plate, which can be used in all types of screening, in which in the first region of the screen plate of
- Fines or small-scale silicon collects in sinks and is selectively separated in the last region of the sieve plate by expanding sieve openings.
- the design of the profiled area of the sieve plate depends on the fraction to be separated.
- the depth and angle of the depressions of the profiled area are to be designed in such a way that the fraction to be separated, e.g. the fine fraction collects there.
- the severing device consists essentially of a sieving line which can be divided into two areas.
- the first area is the inlet area. In this area, the fines accumulate in the sinks and thus targeted the
- Siebmple on there introduced screen openings which expand in the conveying direction. Through these screen openings, the separation of the desired Si fraction occurs or fine fraction. The fact that the sieve openings in the conveying direction is wide, this system does not tend to clog.
- the sieve openings extend up to the end of the separating device located in the conveying direction.
- the screen openings are therefore open towards the end. This is an essential feature to ensure that no silicon fragments accumulate or block the sieve opening in the separator.
- the screen openings preferably have an opening angle of 1 to 20 ° and more preferably of 5-15 °.
- the screen openings preferably have a length of 5 mm to 50 mm, particularly preferably a length of 20 to 40 mm.
- the screen openings at the end in the conveying direction continue to widen.
- the opening angle of this second expansion is preferably 40-150 °, more preferably 60-120 °.
- the angle of the screen openings can be changed by suitable devices.
- elements made of an elastic material can be used for this purpose. It has been shown that this
- the suction mounted below the screen openings, which is positioned so that the suction is preferably between the beginning of the screen openings and the partition plate itself.
- the suction preferably has a distance to the lower sieve plate of 1 mm to 50 mm, more preferably a distance of 5 mm to 20 mm.
- Another preferred embodiment of the deposition according to the invention is the installation of a gas stream above the screen openings.
- This comprises one or more gas nozzles, which are directed to the screen openings.
- the gas jet may tend to be soft or hard.
- a soft jet is preferably used to support the deposition of dust.
- a hard jet is preferably suitable for the deposition of the smaller polysilicon fragments, 0.1 mm to 4 mm.
- the gas stream can also be formed as laminar flow.
- Suitable gases are clean room air according to DIN EN ISO 14644-1 (ISO1 to ISO6), clean dry air, nitrogen and argon.
- the gas stream is preferably to be positioned between the beginning of the sieve openings and the separating plate.
- the removal area is connected to a conveyor trough, over which the larger fragments are removed.
- another screen plate can then be used to separate another fraction from the polysilicon.
- the sieving path is one or more
- the screen stretch is lined or coated with one or more materials selected from the group consisting of plastic, ceramic, glass, diamond, amorphous carbon, and silicon.
- the polysilicon contacting portions of the screen are lined or coated with one or more materials selected from the group consisting of plastic, ceramic, glass, diamond, amorphous carbon, and silicon.
- the screening line comprises a metallic base body and a coating or lining of one or more materials selected from the group consisting of plastic, ceramic, glass, diamond, amorphous carbon and silicon.
- the screen path comprises a plastic body and a coating or lining of one or more materials selected from the group consisting of ceramic, glass, diamond, amorphous carbon, and silicon.
- the screen comprises a coating of titanium nitride, titanium carbide, aluminum titanium nitride, DLC (Diamond Like Carbon), silicon carbide, nitride bonded silicon carbide, or tungsten carbide.
- the breaking sizes (BG) 1, 2, 3 can be used via this screening device.
- these fraction sizes have the following
- the individual fractions have small and larger size classes
- the proportion of larger and smaller fragments can be up to 5% each.
- the screening device is suitable for the deposition of small cells
- Polysilicon pieces which have a diameter of 0.05 to 2 mm as well
- the separation device comprises a funnel for depositing polysilicon material, two delivery units, and two
- the first unit is referred to as unit 1 and the second unit as unit 2.
- the delivery rate of polysilicon in kg / min can be set separately for each unit.
- the delivery rate of polysilicon in kg / min can be set separately for each unit.
- Flow rate of the unit 1 equal to the unit 2.
- the flow rate of the unit 1 is smaller than that
- the removal area is designed so that the polysilicon material in the
- This sampling area can also be vibrated to ensure that no polysilicon material remains.
- the angle of this outlet is preferably 5 to 45 ° and more preferably 15 to 25 °.
- Fig. 1 shows the schematic structure of a screen plate of a separating device according to the invention.
- Fig. 2 shows schematically a separation device with suction and separation plate.
- Fig. 3 shows schematically a separation device with suction and gas flow.
- the sieve plate 1 comprises a feed area 2, in which the polysilicon
- the polysilicon can be conveyed for example by means of a conveyor trough to the screen and delivered to the feed area 2 of the screen plate 1.
- the screen plate 1 also comprises a profiled area 3. This profiled area
- the fine fraction contained in the polysilicon accumulates during the movement of the polysilicon on the profiled area 3 in the depressions 31 of the profiled area 3.
- the screen plate 1 comprises - following the profiled area 3 - an area
- the depressions 31 of the profiled portion 3 are arranged.
- the fines of the polysilicon located in the depressions 31 of the profiled area 3 are guided in a targeted manner to the sieve openings 41 of the area 4.
- the tips 32 of the profiled area 3 preferably also continue in the area 4, so that the entire screen plate 1 is profiled, but in the area 4 instead of depressions 31 it has screen openings 41.
- the separation of the fine fraction thus takes place via the sieve openings 41 of the sieve plate 1.
- the separated fine fractions can be absorbed, for example, by a collecting container arranged below the sieve openings 41 of the sieve plate 1. Larger fragments are in the profiled area over the tips 32 to
- the sieve openings 41 widen in the conveying direction by an opening angle a1.
- the screen openings 41 have at the end of the area 4 a further widening 6, characterized by an opening angle a2.
- Suction 8 mounted below the screen openings 41, which is positioned so that the suction 8 is preferably located between the beginning of the screen openings 41 and the partition plate 7.
- Another preferred embodiment of the deposition according to the invention is the installation of a gas stream 9 above the sieve openings 41.
- the polysilicon material delivered by the polysilicon manufacturer in the bag also contains smaller debris and fines.
- the fine material in particular with grain sizes smaller than 4 mm, has a negative influence on the drawing process and must therefore be removed before use.
- the Polybruch answering 2 was used.
- Testpoylsiliciummaterial of the fraction size 2 (without fines ⁇ 4 mm) were given.
- the application of the test polysilicon material is preferably carried out via a funnel.
- the container to be filled is positioned over the first conveyor unit at the end of the strainer, so that the
- Test polysilicon material can be promoted in the container without problems.
- the preliminarily separated test material is used for this test.
- the conveyor unit 2 g of separated fine material are added after 2 kg of test polymaterial, so that in the end a total of 10 g of fine material was added for this test.
- the conveyor unit and the strainer were started.
- the flow rate was set to 3kg +/- 0.5kg per minute before the test.
- Test 3 For this purpose, a conveyor unit plus a suction sieve with a gas flow from above was used.
- the separation device comprises two screen plates, each comprising a polysilicon loading area, a profiled area with peaks and troughs, an area adjoining the profiled area with screen openings, and a removal area, wherein the screen openings in Direction of the removal area on wide, and arranged below the screen openings separating plate which is horizontally and vertically displaceable, and an exhaust below the screen openings.
- the removal area of the first sieve plate adjoins the feed area of the second sieve plate, ie polysilicon which was not separated in the first sieving line is placed on the second sieve line. In both screens, exhausts are provided below the screen openings.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016225248.8A DE102016225248A1 (en) | 2016-12-16 | 2016-12-16 | Separator for polysilicon |
PCT/EP2017/069199 WO2018108334A1 (en) | 2016-12-16 | 2017-07-28 | Separating device for polycrystalline silicon |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3554723A1 true EP3554723A1 (en) | 2019-10-23 |
EP3554723B1 EP3554723B1 (en) | 2022-11-30 |
Family
ID=59501437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17746082.1A Active EP3554723B1 (en) | 2016-12-16 | 2017-07-28 | Separating device for polycrystalline silicon |
Country Status (9)
Country | Link |
---|---|
US (1) | US11154908B2 (en) |
EP (1) | EP3554723B1 (en) |
JP (1) | JP7005627B2 (en) |
KR (1) | KR102330224B1 (en) |
CN (1) | CN110072638B (en) |
DE (1) | DE102016225248A1 (en) |
FI (1) | FI3554723T3 (en) |
TW (1) | TWI660793B (en) |
WO (1) | WO2018108334A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116096509A (en) | 2020-08-24 | 2023-05-09 | 瓦克化学股份公司 | Sieve plate for a separating device for classifying bulk material |
CN117430119B (en) * | 2023-12-20 | 2024-02-20 | 四川优赛思智能科技有限公司 | Industrial silicon smelting system with automatic eye blocking function |
Family Cites Families (22)
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US2074515A (en) * | 1934-08-11 | 1937-03-23 | Valdis M Pyatt | Separator |
DE826211C (en) * | 1950-06-13 | 1951-12-27 | Dr Albert Remien | Device for sorting fruit u. like |
EP0139783A1 (en) * | 1983-11-01 | 1985-05-08 | Ventilatorenfabrik Oelde Gmbh | Device for processing scrap, waste or the like |
CA2045659C (en) * | 1989-02-15 | 2000-04-11 | Keith Piggott | Air concentrator |
JPH05168450A (en) | 1991-12-24 | 1993-07-02 | Mitsuwa:Kk | Unmatured soybean sorting machine |
DE4307138A1 (en) | 1993-03-06 | 1994-09-08 | Seichter Gmbh | Conveyor for bulk goods |
ES2135290T3 (en) * | 1996-01-18 | 1999-10-16 | Siemens Ag | EVACUATION DEVICE. |
US5819951A (en) * | 1996-10-29 | 1998-10-13 | A.S.T. Advanced Screening Technologies Ltd. | Separator plate for the screening of a particulate material and a sorting apparatus comprising same |
AUPO638997A0 (en) * | 1997-04-23 | 1997-05-22 | Unisearch Limited | Metal contact scheme using selective silicon growth |
DE19822996C1 (en) * | 1998-05-22 | 1999-04-22 | Siemens Ag | Temperature-resistant gradient material for heat shield or gas turbine blade |
DE19839024A1 (en) * | 1998-08-27 | 2000-03-09 | Wacker Chemie Gmbh | Air classifiers for polysilicon |
DE19914998A1 (en) * | 1999-04-01 | 2000-10-12 | Wacker Chemie Gmbh | Vibratory conveyor and method for promoting silicon breakage |
JP2002011408A (en) | 2000-06-30 | 2002-01-15 | Sumitomo Heavy Ind Ltd | Vibration sieving device |
US8021483B2 (en) * | 2002-02-20 | 2011-09-20 | Hemlock Semiconductor Corporation | Flowable chips and methods for the preparation and use of same, and apparatus for use in the methods |
US6889846B2 (en) * | 2002-03-15 | 2005-05-10 | Johnson Crushers International | Hybrid screen |
DE102006035081A1 (en) | 2006-07-28 | 2008-01-31 | Wacker Chemie Ag | Method and apparatus for producing classified polycrystalline silicon fracture in high purity |
KR100882556B1 (en) * | 2007-06-21 | 2009-02-17 | 주식회사 블루웨일스크린 | Screen bar fixing structure of screening apparatus for treating wastewater |
CN202799718U (en) * | 2012-01-07 | 2013-03-20 | 阿不都克友木·哈地尔 | Threshing separator |
CN104944069A (en) * | 2014-03-24 | 2015-09-30 | 湖北国煤煤矿机械有限公司 | Adjustable screening middle trough |
DE102015206849A1 (en) | 2015-04-16 | 2016-10-20 | Wacker Chemie Ag | Apparatus and method for classifying and dedusting polysilicon granules |
DE102015211351A1 (en) | 2015-06-19 | 2016-12-22 | Siltronic Ag | Sieve plate for screening equipment for the mechanical classification of polysilicon |
CN205161144U (en) * | 2015-12-02 | 2016-04-20 | 蒋和忠 | Harvester with chain vibration isolation sieves device |
-
2016
- 2016-12-16 DE DE102016225248.8A patent/DE102016225248A1/en not_active Withdrawn
-
2017
- 2017-07-28 WO PCT/EP2017/069199 patent/WO2018108334A1/en unknown
- 2017-07-28 EP EP17746082.1A patent/EP3554723B1/en active Active
- 2017-07-28 CN CN201780077025.3A patent/CN110072638B/en active Active
- 2017-07-28 US US16/470,006 patent/US11154908B2/en active Active
- 2017-07-28 KR KR1020197020447A patent/KR102330224B1/en active IP Right Grant
- 2017-07-28 JP JP2019531776A patent/JP7005627B2/en active Active
- 2017-07-28 FI FIEP17746082.1T patent/FI3554723T3/en active
- 2017-12-12 TW TW106143595A patent/TWI660793B/en active
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JP2020513313A (en) | 2020-05-14 |
TW201838726A (en) | 2018-11-01 |
JP7005627B2 (en) | 2022-01-21 |
CN110072638A (en) | 2019-07-30 |
TWI660793B (en) | 2019-06-01 |
EP3554723B1 (en) | 2022-11-30 |
KR102330224B1 (en) | 2021-11-22 |
WO2018108334A1 (en) | 2018-06-21 |
US20200086348A1 (en) | 2020-03-19 |
DE102016225248A1 (en) | 2018-06-21 |
FI3554723T3 (en) | 2023-03-21 |
KR20190097152A (en) | 2019-08-20 |
CN110072638B (en) | 2022-08-26 |
US11154908B2 (en) | 2021-10-26 |
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