EP0876851B1 - Optoelektronische Klassiervorrichtung - Google Patents
Optoelektronische Klassiervorrichtung Download PDFInfo
- Publication number
- EP0876851B1 EP0876851B1 EP98108295A EP98108295A EP0876851B1 EP 0876851 B1 EP0876851 B1 EP 0876851B1 EP 98108295 A EP98108295 A EP 98108295A EP 98108295 A EP98108295 A EP 98108295A EP 0876851 B1 EP0876851 B1 EP 0876851B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- classified
- semiconductor material
- slide face
- silicon
- semiconductor
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/367—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means
- B07C5/368—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means actuated independently
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/04—Sorting according to size
- B07C5/10—Sorting according to size measured by light-responsive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/367—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means
Definitions
- the invention relates to an apparatus and a method for optoelectronic classification of semiconductor material.
- High purity Silicon is obtained, for example, by thermal decomposition more volatile and therefore simple via distillation processes silicon compounds to be cleaned, such as Trichlorosilane. It falls polycrystalline in the form of rods with typical diameters from 70 to 300 mm and lengths of 500 up to 2500 mm. A large part of the bars becomes production of crucible-drawn single crystals, of ribbons and foils or for the production of polycrystalline solar cell base material used. Because these products are made from high purity, molten Silicon are manufactured, it is necessary to use solid silicon to melt in crucibles.
- the object of the invention is therefore a device and to provide a process in which the Disadvantages of the prior art can be avoided, in particular an apparatus and a method for classifying semiconductor material, especially of silicon make the semiconductor material with metal atoms as little as possible is contaminated, a good selectivity is set as little abrasion as possible and can not clog holes.
- This task is surprisingly solved by the invention.
- the figure shows a device according to the invention.
- the invention relates to a device for optoelectronic Classifying semiconductor materials, characterized in that the device is a device for separating 2 and has a sliding surface 3, the angle of the sliding surface 3 is adjustable to the horizontal, the device in each case for separating 2 and the sliding surface 3 a surface have from the semiconductor material to be classified and a Radiation source 5 through its beam path 4 that to be classified Material falls and a shape detection device 6 that forwards the shape of the goods to be classified to a control unit 7, which controls at least one deflection device 8.
- the device is preferably used to make it brittle Semiconductor materials such as silicon, germanium or gallium arsenide to classify according to grain sizes. Silicon is preferred classified with it. With this device, semiconductor material can also be separated into two or more grain size fractions.
- the device is constructed in such a way that the goods to be classified 1 first on a device for separating and preferably for simultaneous conveying comes, which preferably a vibratory conveyor is.
- This vibratory conveyor is preferred vibrated by which the break out Semiconductor material is separated and in the direction of the sliding surface 3 is transported.
- Place the material on a conveyor device occasionally.
- the angle of this sliding surface 3 is adjustable to the horizontal; it is depending on the coefficient of friction between Fragment and surface covering set so that the fragments preferably under the action of gravity slide. The angle is preferred in a range from 20 ° to 80 ° 30 ° to 70 ° set.
- This device for separating 2 and preferably for conveying and the sliding surface 3 are designed so that the surfaces to be classified Semiconductor material with materials other than that too classifying semiconductor material comes into contact. This happens preferably by coating this device for separating 2 and preferably for conveying and the sliding surface 3 with the same semiconductor material as that that classifies shall be.
- the device for separating 2 and the sliding surface 3 can also be made entirely of the corresponding semiconductor material be constructed. In the case of silicon, that is, with silicon be coated or consist of silicon.
- On the The sliding surface align the particles so that you Center of gravity is as low as possible. That means, that in its free fall after passing the sliding surface 3 the largest projection surface facing the radiation source 5.
- the Fall height between the sliding surface 3 and the deflection device 8 is preferably 5 cm to 20 cm, preferably 10 cm.
- a radiation source 5 is in the middle of this drop distance and a shape detection device 6, which is Particles between the radiation source 5 and the shape detection device 6 moves.
- the distance of the particle from the radiation source 5 is preferably 50 cm to 120 cm, particularly preferably 70 cm and the particle to the shape detection device 6 is preferably 5 cm to 12 cm, particularly preferably 6 cm.
- the radiation source 5 is preferably a electromagnetic radiation source, such as a laser or a Lamp, the visible light in the range of 400 nm to 700 nm broadcasts. Electromagnetic rays in the infrared range, Radiated ultraviolet or X-ray range become.
- the shape detection device 6 is concerned preferably a high-resolution sensor that is a camera can be to detect visible light, infrared rays, Ultraviolet rays or x-rays.
- This Sensor is connected to a control unit 7 that the incoming Evaluates data.
- This control unit 7 acts it is preferably a computer.
- This control unit 7 controls at least one deflection device according to a predetermined program 8.
- This recording system can consist of a control unit 7 and shape detection device 6 a certain grain size or capture a grain size range.
- the deflector 8 With the deflector 8, the corresponding grain size or a grain size range detected, it is preferably a nozzle, from which gases or liquids are preferably expelled, the gases are preferably air or are inert gases, such as nitrogen, which operate with a pressure above normal pressure, preferably 3 to 10 bar, particularly preferably at 6 bar.
- the liquids is preferably high-purity water, with a conductivity of preferably below 0.14 uS, particularly preferably of 0.08 ⁇ S ejected at a pressure of preferably 2 to 20 bar.
- the deflection device 8 can be arranged alone be or consist of several nozzles arranged side by side, which are preferably in a row at a distance of preferably 3 to 15 mm, particularly preferably 9 mm if the particles are parallel through the beam path 4 the radiation source 5 fall.
- the deflected particles with the desired grain size or the grain size range are preferred via a separating device 9 in a collecting container 10 collected and the undeflected particles are in one Collection container 11 collected.
- the collection containers can at least inside a surface from the to be classified Have or consist of semiconductor material.
- the two fanned out streams of goods can be detected by additional detection systems and deflection devices divided into further grain classes become. Classification according to surface parameters can also be used be made.
- This separating device 9 is preferably on the surface provided or exists with the semiconductor material to be classified out of this.
- Another object of the invention is a method for optoelectronic classification of semiconductor materials using the device according to the invention for optoelectronic classification, wherein the classified material on a device for separating 2, the semiconductor material to be classified on the surface has, is separated and via a sliding surface 3, the surface of the semiconductor material to be classified has, the angle of the sliding surface in the horizontal is adjustable, slides down so that the center of gravity of the Classified goods is as low as possible and in this orientation, after leaving the sliding surface 3, the beam path 4 one Radiation source 5 passes through a shape detection device 6 the shape of the classified material to a control unit 7 forwards, at least according to previously set criteria controls a deflection device 8, which deflects the classified material.
- the crushed Well 1 in this case semiconductor material, in one Device for separating 2 conveyed to a sliding surface 3, whose angle depending on the coefficient of friction between to classify semiconductor material and surface covering so is set that the semiconductor material to be classified preferably slides down under the action of gravity.
- the irregularly shaped semiconductor material is aligned in such a way that his focus is as possible comes to lie low, which means that it is its largest projection surface the sliding surface 3 turns.
- the shredded material passes after leaving the sliding surface 3 the detection system consisting of radiation source 5 and shape detection device 6, the beam path 4 of the radiation source 5 and is used by a shape detection device 6 detects, preferably an optical resolution of 0.1 mm up to 20 mm and particularly preferably an optical resolution of Has 0.5 mm to 10 mm, the data obtained from a control unit 7 can be evaluated.
- the semiconductor material to be classified passes the acquisition system with a duration of fall from 0.05 sec to 1 sec, particularly preferably from 0.1 sec to 0.2 sec.
- At least a deflection device 8 controlled for example all too small semiconductor material particles with, for example, one Air jet deflects and thus deviates from the original Trajectory causes.
- a separator 9 separates the two fractions, which are in separate collection containers 10 and 11 are collected.
- the inventive method in connection with the inventive The device has the advantages of being contamination-free is classified; it will preferably be a range of 15 mm continuously measured up to 150 mm. But it can also be set that a range of, for example, 10 to 20 mm is detected or mixed a certain percentage of a certain grain size with the percentage of another certain grain size is detected. This allows sorting with adjustable lubrication can be set exactly as requested by the customer, since these need certain grain size ratios to the crucible fill from which, for example, the monocrystal is pulled becomes.
- a preferred embodiment of the device according to the invention for optoelectronic classification has a working width of preferably 500 mm, an optical resolution of 0.5 mm and a nozzle grid of 8 mm nozzle spacing, which is a mass flow of 1t / h of a pile of different sized polysilicon fragments with a grain size of 30 mm classified.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Sorting Of Articles (AREA)
- Silicon Compounds (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
Claims (7)
- Vorrichtung zum optoelektronischen Klassieren von Halbleitermaterialien, dadurch gekennzeichnet, daß die Vorrichtung eine Vorrichtung zum Vereinzeln 2 und eine Gleitfläche 3 aufweist, wobei der Winkel der Gleitfläche 3 zur Horizontalen verstellbar ist, wobei jeweils die Vorrichtung zum Vereinzeln 2 und die Gleitfläche 3 eine Oberfläche aus dem zu klassierenden Halbleitermaterial aufweisen sowie eine Strahlenquelle 5 durch deren Strahlengang 4 das zu klassierende Material fällt und eine Formerfassungsvorrichtung 6, die die Form des Klassierguts an eine Kontrolleinheit 7 weiterleitet, die zumindest eine Ablenkvorrichtung 8 steuert.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Winkel der Gleitfläche 3 20° bis 80° beträgt.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet daß die Oberfläche der Vorrichtung zum Vereinzeln 2 und der Gleitfläche 3 aus Silicium besteht.
- Verfahren zum optoelektronischen Klassieren von Halbleitermaterialien, dadurch gekennzeichnet, daß das Klassiergut auf einer Vorrichtung zum Vereinzeln 2, die das zu klassierende Halbleitermaterial an der Oberfläche aufweist, vereinzelt wird und über eine Gleitfläche 3, die das zu klassierende Halbleitermaterial an der Oberfläche aufweist, wobei der Winkel der Gleitfläche in der Horizontalen verstellbar ist, nach unten gleitet, so daß der Schwerpunkt des Klassiergutes möglichst niedrig liegt und in dieser Ausrichtung, nach Verlassen der Gleitfläche, den Strahlengang einer Strahlenquelle 5 passiert, wobei eine Formerfassungsvorrichtung 6, die die Form des Klassierguts an eine Kontrolleinheit 7 weiterleitet, die nach vorher eingestellten Kriterien zumindest eine Ablenkvorrichtung 8 steuert, die das Klassiergut ablenkt.
- Verfahren zum optoelektronischen Klassieren von Halbleitermaterialien nach Anspruch 4, dadurch gekennzeichnet, daß der Winkel der Gleitfläche in einem Bereich von 20° bis 80° eingestellt wird.
- Verfahren zum optoelektronischen Klassieren von Halbleitermaterialien nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das zu klassierende Halbleitermaterial Silicium ist.
- Verfahren zum optoelektronischen Klassieren von Halbleitermaterialien nach einem oder mehreren der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß zu großes Halbleitermaterial mit einem Wasserstrahl zusätzlich zerkleinert wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19719698A DE19719698A1 (de) | 1997-05-09 | 1997-05-09 | Optoelektronische Klassiervorrichtung |
DE19719698 | 1997-05-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0876851A1 EP0876851A1 (de) | 1998-11-11 |
EP0876851B1 true EP0876851B1 (de) | 2001-12-05 |
Family
ID=7829145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98108295A Expired - Lifetime EP0876851B1 (de) | 1997-05-09 | 1998-05-07 | Optoelektronische Klassiervorrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6040544A (de) |
EP (1) | EP0876851B1 (de) |
JP (1) | JPH10314680A (de) |
KR (1) | KR100293799B1 (de) |
CN (1) | CN1198966A (de) |
DE (2) | DE19719698A1 (de) |
TW (1) | TW397713B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8074905B2 (en) | 2006-04-06 | 2011-12-13 | Wacker Chemie Ag | Method and device for comminuting and sorting polysilicon |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE513476C2 (sv) * | 1998-01-09 | 2000-09-18 | Svante Bjoerk Ab | Anordning och förfarande för sortering av granulat |
DE19839024A1 (de) * | 1998-08-27 | 2000-03-09 | Wacker Chemie Gmbh | Windsichten für Polysilicium |
DE19840200A1 (de) * | 1998-09-03 | 2000-03-09 | Wacker Chemie Gmbh | Klassiervorrichtung |
DE19914998A1 (de) * | 1999-04-01 | 2000-10-12 | Wacker Chemie Gmbh | Schwingförderer und Verfahren zur Förderung von Siliciumbruch |
DE10123304A1 (de) * | 2001-05-14 | 2002-12-05 | Trienekens Ag | Vorrichtung und Verfahren zur Sortierung eines Abfallgemisches |
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 |
EP1553214B1 (de) * | 2002-02-20 | 2011-11-23 | Hemlock Semiconductor Corporation | Fliessfähige Späne und Verfahren zu iher Verwendung |
KR100480319B1 (ko) * | 2002-05-14 | 2005-04-06 | 한잠기계(주) | 미립 색채 선별 장치(米粒 色彩 選別 裝置) |
ES2393954T3 (es) * | 2005-05-17 | 2013-01-02 | Visys Nv | Tolva para aparato de clasificación y aparato de clasificación provisto de tal tolva |
DE102005026419B4 (de) * | 2005-06-08 | 2011-01-05 | Mühlbauer Ag | Verfahren und Vorrichtung zur geometrischen Vermessung flacher Körper |
JP4918771B2 (ja) * | 2005-09-26 | 2012-04-18 | 住友電気工業株式会社 | 粒子分級装置およびその装置により分級された粒子を含有する接着剤 |
DE102006016324A1 (de) * | 2006-04-06 | 2007-10-25 | Wacker Chemie Ag | Vorrichtung und Verfahren zum flexiblen Klassieren von polykristallinen Silicium-Bruchstücken |
US8620059B2 (en) * | 2007-12-13 | 2013-12-31 | Fpinnovations | Characterizing wood furnish by edge pixelated imaging |
WO2011064795A2 (en) * | 2009-11-24 | 2011-06-03 | Goda Venkata Ramana | Device for sorting contaminants from minerals, and method thereof |
DE102010039752A1 (de) * | 2010-08-25 | 2012-03-01 | Wacker Chemie Ag | Polykristallines Silicium und Verfahren zu dessen Herstellung |
CN102553830B (zh) * | 2011-12-16 | 2014-12-03 | 东南大学 | 一种激光扫描分拣机 |
DE102013218003A1 (de) * | 2013-09-09 | 2015-03-12 | Wacker Chemie Ag | Klassieren von Polysilicium |
DE102015209589A1 (de) * | 2015-05-26 | 2016-12-01 | Wacker Chemie Ag | Vorrichtung zur Förderung eines Produktstroms aus Polysiliciumbruch oder Polysiliciumgranulat |
BR102017026974A2 (pt) * | 2017-12-14 | 2019-06-25 | Gabriel Gelli Checchinato | Mecanismo de enchimento autônomo de recipientes com tamanhos variados |
CN109029252B (zh) * | 2018-06-20 | 2020-12-01 | Oppo广东移动通信有限公司 | 物体检测方法、装置、存储介质及电子设备 |
JP7274836B2 (ja) * | 2018-09-03 | 2023-05-17 | Jx金属株式会社 | 電子・電気機器部品屑の処理方法 |
RU2751604C1 (ru) * | 2020-09-23 | 2021-07-15 | Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) | Способ автоматического управления процессом сортирования клубней картофеля, корней и плодов овощей |
CN114160441B (zh) * | 2021-12-08 | 2023-12-26 | 中环艾能(高邮)能源科技有限公司 | 一种太阳能多晶硅片检测系统 |
CN114458886B (zh) * | 2022-01-25 | 2023-08-01 | 江苏经贸职业技术学院 | 一种商贸流通用智能分拣设备 |
Family Cites Families (10)
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US4143770A (en) * | 1976-06-23 | 1979-03-13 | Hoffmann-La Roche Inc. | Method and apparatus for color recognition and defect detection of objects such as capsules |
GB2142426B (en) * | 1983-06-30 | 1986-09-17 | Gunsons Sortex Ltd | Sorting machine and method |
GB2151018B (en) * | 1983-12-06 | 1987-07-22 | Gunsons Sortex Ltd | Sorting machine and method |
US4624367A (en) * | 1984-04-20 | 1986-11-25 | Shafer John L | Method and apparatus for determining conformity of a predetermined shape related characteristics of an object or stream of objects by shape analysis |
SE8803116L (sv) * | 1988-09-06 | 1990-03-07 | Agec Ab | Metod och anordning foer storlekssortering av foeremaal |
US5165548A (en) * | 1990-04-23 | 1992-11-24 | Hemlock Semiconductor Corporation | Rotary silicon screen |
DE4113093C2 (de) * | 1990-04-23 | 1998-08-27 | Hemlock Semiconductor Corp | Vorrichtung und Verfahren zum größenmäßigen Separieren von für Halbleiteranwendungen geeigneten Siliciumstücken |
JPH0473932A (ja) * | 1990-07-16 | 1992-03-09 | Fujitsu Ltd | 半導体製造装置 |
US5260576A (en) * | 1990-10-29 | 1993-11-09 | National Recovery Technologies, Inc. | Method and apparatus for the separation of materials using penetrating electromagnetic radiation |
DE4321261A1 (de) * | 1992-06-29 | 1994-02-24 | Strebel Engineering Kleindoett | Vorrichtung zum Prüfen von Formteilen |
-
1997
- 1997-05-09 DE DE19719698A patent/DE19719698A1/de not_active Withdrawn
-
1998
- 1998-04-29 CN CN98101805A patent/CN1198966A/zh active Pending
- 1998-05-06 TW TW087106962A patent/TW397713B/zh not_active IP Right Cessation
- 1998-05-06 JP JP10123468A patent/JPH10314680A/ja active Pending
- 1998-05-06 KR KR1019980016149A patent/KR100293799B1/ko not_active IP Right Cessation
- 1998-05-07 DE DE59802292T patent/DE59802292D1/de not_active Expired - Lifetime
- 1998-05-07 EP EP98108295A patent/EP0876851B1/de not_active Expired - Lifetime
- 1998-05-08 US US09/075,033 patent/US6040544A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8074905B2 (en) | 2006-04-06 | 2011-12-13 | Wacker Chemie Ag | Method and device for comminuting and sorting polysilicon |
Also Published As
Publication number | Publication date |
---|---|
JPH10314680A (ja) | 1998-12-02 |
EP0876851A1 (de) | 1998-11-11 |
KR19980086789A (ko) | 1998-12-05 |
DE59802292D1 (de) | 2002-01-17 |
TW397713B (en) | 2000-07-11 |
CN1198966A (zh) | 1998-11-18 |
DE19719698A1 (de) | 1998-11-12 |
US6040544A (en) | 2000-03-21 |
KR100293799B1 (ko) | 2001-09-17 |
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