CA2139537C - Methode et appareil servant a classer une substance - Google Patents

Methode et appareil servant a classer une substance Download PDF

Info

Publication number
CA2139537C
CA2139537C CA002139537A CA2139537A CA2139537C CA 2139537 C CA2139537 C CA 2139537C CA 002139537 A CA002139537 A CA 002139537A CA 2139537 A CA2139537 A CA 2139537A CA 2139537 C CA2139537 C CA 2139537C
Authority
CA
Canada
Prior art keywords
particles
diamond
particle
radiation
attenuation
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 - Fee Related
Application number
CA002139537A
Other languages
English (en)
Other versions
CA2139537A1 (fr
Inventor
Ulf Anders Staffan Tapper
Jacek Guzek
Sudhir Nundhlal Surujhlal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Element Six Pty Ltd
Original Assignee
Element Six Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Element Six Pty Ltd filed Critical Element Six Pty Ltd
Publication of CA2139537A1 publication Critical patent/CA2139537A1/fr
Application granted granted Critical
Publication of CA2139537C publication Critical patent/CA2139537C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • 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
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

Cette invention consiste notamment à classifier des particules selon leur composition. Les particles (12, 68, 200) sont irradiées au moyen de rayonnements électromagnétiques, habituellement des rayons X, aux deux premiers niveaux d'énergie. Les deux premières valeurs dérivées représentent l'atténuation du rayonnement de chaque particule. Une troisième valeur correspond à la différence ou au rapport entre les deux premières, et les particules sont classifiées selon que la troisième valeur indique la présence d'une substance particulière dans les particules. Dans une application, la méthode peut servir à classifier de la kimberlite diamantifère dans une fraction de particules de kimberlite contenant des inclusions de diamant et une fraction de particules de kimberlite stérile.
CA002139537A 1994-01-07 1995-01-04 Methode et appareil servant a classer une substance Expired - Fee Related CA2139537C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA94/0098 1994-01-07
ZA9498 1994-01-07

Publications (2)

Publication Number Publication Date
CA2139537A1 CA2139537A1 (fr) 1995-07-08
CA2139537C true CA2139537C (fr) 2007-04-24

Family

ID=25583578

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002139537A Expired - Fee Related CA2139537C (fr) 1994-01-07 1995-01-04 Methode et appareil servant a classer une substance

Country Status (6)

Country Link
AU (1) AU689515B2 (fr)
BR (1) BR9500038A (fr)
CA (1) CA2139537C (fr)
GB (1) GB2285506B (fr)
RU (1) RU95100772A (fr)
ZA (1) ZA9551B (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600241C2 (de) * 1995-01-13 2002-08-01 Bruker Biospin Gmbh Verfahren und Vorrichtung zum Auffinden von Edelsteinen in einer umgebenden Substanz mittels magnetischer Kernresonanz
AUPN226295A0 (en) * 1995-04-07 1995-05-04 Technological Resources Pty Limited A method and an apparatus for analysing a material
ATE331947T1 (de) * 2001-10-22 2006-07-15 Miconos Technology Ltd Röntgenstrahlung-inspektionssystem für produkte, insbesondere nahrungsmittel
US8837669B2 (en) 2003-04-25 2014-09-16 Rapiscan Systems, Inc. X-ray scanning system
US7949101B2 (en) 2005-12-16 2011-05-24 Rapiscan Systems, Inc. X-ray scanners and X-ray sources therefor
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US9113839B2 (en) 2003-04-25 2015-08-25 Rapiscon Systems, Inc. X-ray inspection system and method
US8451974B2 (en) 2003-04-25 2013-05-28 Rapiscan Systems, Inc. X-ray tomographic inspection system for the identification of specific target items
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
US8223919B2 (en) 2003-04-25 2012-07-17 Rapiscan Systems, Inc. X-ray tomographic inspection systems for the identification of specific target items
DE102004001790A1 (de) * 2004-01-12 2005-08-04 Commodas Daten- Und Systemtechnik Nach Mass Gmbh Vorrichtung zur Trennung von Schüttgütern
US7564943B2 (en) 2004-03-01 2009-07-21 Spectramet, Llc Method and apparatus for sorting materials according to relative composition
CN1942759B (zh) * 2004-03-12 2011-01-12 苏珊·M·塞尔肖普 钻石检测
DE102005010867A1 (de) * 2005-03-07 2006-10-19 Commodas Daten- Und Systemtechnik Nach Mass Gmbh Vorrichtung und Verfahren zur Materialanalyse von Förderströmen aus Partikeln
EP2243021B1 (fr) 2008-02-15 2018-01-24 Mayo Foundation For Medical Education And Research Système et méthode d'imagerie quantitative d'une composition chimique pour décomposer plusieurs matières
EP2198983B1 (fr) 2008-12-19 2011-08-24 Omya Development AG Procédé de séparation d'impuretés minérales des roches contenant du carbonate de calcium avec un tri à rayons X
US8610019B2 (en) 2009-02-27 2013-12-17 Mineral Separation Technologies Inc. Methods for sorting materials
WO2012094568A2 (fr) 2011-01-07 2012-07-12 Huron Valley Steel Corporation Système de tri de métaux de rebut
RU2465051C2 (ru) * 2011-02-14 2012-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кабардино-Балкарский государственный университет им. Х.М. Бербекова" (КБГУ) Способ рудосортировки
RU2470714C1 (ru) * 2011-07-21 2012-12-27 Общество с ограниченной ответственностью "Лаборатория рентгенодиагностических систем" Способ сепарации алмазов
US9114433B2 (en) 2012-01-17 2015-08-25 Mineral Separation Technologies, Inc. Multi-fractional coal sorter and method of use thereof
US8750561B2 (en) * 2012-02-29 2014-06-10 United Technologies Corporation Method of detecting material in a part
GB201220419D0 (en) 2012-11-13 2012-12-26 Kromek Ltd Identification of materials
GB201220418D0 (en) 2012-11-13 2012-12-26 Kromek Ltd Identification of materials
RU2551486C1 (ru) * 2013-12-24 2015-05-27 Открытое акционерное общество "Иркутский научно-исследовательский институт благородных и редких металлов и алмазов" ОАО "Иргиредмет" Способ рентгенорадиометрической сепарации алмазосодержащих материалов
RU2623692C2 (ru) * 2015-10-15 2017-06-28 Общество с ограниченной ответственностью "Лаборатория Скантроник" Система и способ для обнаружения алмазов в кимберлите и способ предварительного обогащения алмазов с их применением
CN107470182A (zh) * 2016-06-08 2017-12-15 郑州立子加速器科技有限公司 一种γ射线烟叶筛选装置
CN108273752A (zh) * 2018-03-13 2018-07-13 顺丰科技有限公司 用于自动分拣设备的除尘装置及自动分拣设备
CA3191464A1 (fr) * 2020-09-02 2022-03-10 Botswana International University Of Science And Technology Procede et systeme de tri de diamants
CN113210117A (zh) * 2021-05-13 2021-08-06 盾构及掘进技术国家重点实验室 一种基于红外热成像和微波加热的岩石分选与破碎系统
WO2023194919A1 (fr) * 2022-04-05 2023-10-12 Gem Recovery Systems Limited Procédé de détection de diamant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU530206B2 (en) * 1979-06-26 1983-07-07 De Beers Industrial Diamond Division (Proprietary) Limited Detection of low atomic number particles
GB2091417B (en) * 1981-01-19 1985-05-01 Picker Int Ltd Apparatus for examining materials
GB8700917D0 (en) * 1987-01-16 1987-02-18 British Petroleum Co Plc Separation process
US5164590A (en) * 1990-01-26 1992-11-17 Mobil Oil Corporation Method for evaluating core samples from x-ray energy attenuation measurements
GB9211734D0 (en) * 1992-06-03 1992-07-15 Gersan Ets Prospecting for diamonds

Also Published As

Publication number Publication date
AU1005495A (en) 1995-07-20
ZA9551B (en) 1995-09-11
GB9500269D0 (en) 1995-03-01
GB2285506B (en) 1998-07-01
BR9500038A (pt) 1995-10-03
CA2139537A1 (fr) 1995-07-08
GB2285506A (en) 1995-07-12
RU95100772A (ru) 1996-11-10
AU689515B2 (en) 1998-04-02

Similar Documents

Publication Publication Date Title
CA2139537C (fr) Methode et appareil servant a classer une substance
US9606259B2 (en) X-ray tomographic inspection system for the identification of specific target items
BE1017033A3 (nl) Methode en uitrusting voor het onderscheiden van materialen door gebruik te maken van snelle neutronen en continu spectrale x-stralen.
US7369640B2 (en) Radiation scanning of objects for contraband
EP0358965B1 (fr) Procédé et dispositif de détection et de formation d'image de métaux lourds
US7072440B2 (en) Tomographic scanning X-ray inspection system using transmitted and Compton scattered radiation
EP0852717B1 (fr) Detection de contrebande au moyen d'un procede de tomographie interactive utilisant des sondes multiples
DE69738214T2 (de) Rotierbares wassergekühltes Target zur Emission von resonanten Gamma-Strahlen und Gamma-Strahlen-Absorptionsgerät
EP3686901A1 (fr) Procédé d'inspection tomographique par rayons x
US20070286329A1 (en) Energy spectrum modulation apparatus, material discrimination method and device, image processing method
EP0819247A1 (fr) Procede et appareil d'analyse d'un materiau
US20080181357A1 (en) Combined computed tomography and nuclear resonance fluorescence cargo inspection system and method
US20100166285A1 (en) System and method for acquiring image data
RU2141109C1 (ru) Способ для классификации частиц (варианты) и устройство для классификации частиц (варианты)
EP0064810A1 (fr) Triage de fragments de matières
RU2623692C2 (ru) Система и способ для обнаружения алмазов в кимберлите и способ предварительного обогащения алмазов с их применением
CA2245141C (fr) Detection en ligne des diamants
US20230194444A1 (en) X-ray backscatter imaging system for precise searching for container hazardous cargo and method for controlling the same
WO2023175459A1 (fr) Séparateur à rayons x pour trier des métaux à partir d'un matériau recyclé

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130104

MKLA Lapsed

Effective date: 20130104