RU95100772A - Method and apparatus for classification of lumpy materials - Google Patents

Method and apparatus for classification of lumpy materials

Info

Publication number
RU95100772A
RU95100772A RU95100772/12A RU95100772A RU95100772A RU 95100772 A RU95100772 A RU 95100772A RU 95100772/12 A RU95100772/12 A RU 95100772/12A RU 95100772 A RU95100772 A RU 95100772A RU 95100772 A RU95100772 A RU 95100772A
Authority
RU
Russia
Prior art keywords
particles
classification
particle
kimberlite
fraction consisting
Prior art date
Application number
RU95100772/12A
Other languages
Russian (ru)
Inventor
Андерс Стаффан Таппер Ульф
Se]
Гузек Ясек
Нундхлал Суруйхлал Судхир
Pl]
Za]
Original Assignee
"Де Бирс
"Де Бирс, Отделение технических алмазов, Лтд" Дебид Хаус
Отделение технических алмазов
Корнер Аметист Стрит энд Кроунвуд Роад, Тета, Йоханнесбург
Лтд" Дебид Хаус (ZA)
Корнер Аметист Стрит энд Кроунвуд Роад
Тета
Йоханнесбург (ZA)
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 "Де Бирс, "Де Бирс, Отделение технических алмазов, Лтд" Дебид Хаус, Отделение технических алмазов, Корнер Аметист Стрит энд Кроунвуд Роад, Тета, Йоханнесбург, Лтд" Дебид Хаус (ZA), Корнер Аметист Стрит энд Кроунвуд Роад, Тета, Йоханнесбург (ZA) filed Critical "Де Бирс
Publication of RU95100772A publication Critical patent/RU95100772A/en

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

Abstract

FIELD: classification of particles according to their composition. SUBSTANCE: particles are subjected to electromagnetic radiation, normally by X-rays at first and second energy levels. Produced are first and second values demonstrating attenuation of radiation in each particle. Then third value is obtained as difference between first and second values or their ratio. Particle are classified according to what is shown by third value, namely presence of definite matter. In one of possible applications, method can be used for classification of diamond- containing kimberlite into fraction consisting of particles containing diamond inclusions and fraction consisting only of kimberlite particles. EFFECT: high efficiency.

Claims (1)

Изобретение относится к способу классификации частиц по их составу. В этом способе частицы облучаются электромагнитным излучением, обычно рентгеновскими лучами, на первом и втором энергетических уровнях. Получаются первая и вторая величины, представляющие затухание излучения в каждой частице. Затем получается третья величина как разница между первой и второй величинами или их отношение, и частицы классифицируются в зависимости от того, указывает ли третья величина на присутствие в частице определен ого вещества. В одном из применений способ может быть использован для классификации алмазосодержашего кимберлита на фракцию, состоящую из частиц, содержащих алмазные включения, и фракцию, состоящую только из кимберлитовых частиц.The invention relates to a method for classifying particles by their composition. In this method, particles are irradiated with electromagnetic radiation, usually x-rays, at the first and second energy levels. The first and second quantities are obtained, representing the attenuation of radiation in each particle. Then the third quantity is obtained as the difference between the first and second quantities or their ratio, and the particles are classified depending on whether the third quantity indicates the presence of a certain substance in the particle. In one application, the method can be used to classify diamond-containing kimberlite into a fraction consisting of particles containing diamond inclusions and a fraction consisting only of kimberlite particles.
RU95100772/12A 1994-01-07 1995-01-06 Method and apparatus for classification of lumpy materials RU95100772A (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
RU95100772A true RU95100772A (en) 1996-11-10

Family

ID=25583578

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95100772/12A RU95100772A (en) 1994-01-07 1995-01-06 Method and apparatus for classification of lumpy materials

Country Status (6)

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

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600241C2 (en) * 1995-01-13 2002-08-01 Bruker Biospin Gmbh Method and device for finding gemstones in a surrounding substance by means of magnetic resonance
AUPN226295A0 (en) * 1995-04-07 1995-05-04 Technological Resources Pty Limited A method and an apparatus for analysing a material
EP1304562B1 (en) * 2001-10-22 2006-06-28 Miconos Technology Limited X-ray inspection system for products, in particular food products
US8223919B2 (en) 2003-04-25 2012-07-17 Rapiscan Systems, Inc. X-ray tomographic inspection systems for the identification of specific target items
US9113839B2 (en) 2003-04-25 2015-08-25 Rapiscon Systems, Inc. X-ray inspection system and method
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
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
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
DE102004001790A1 (en) * 2004-01-12 2005-08-04 Commodas Daten- Und Systemtechnik Nach Mass Gmbh Device for separating bulk materials
US7564943B2 (en) 2004-03-01 2009-07-21 Spectramet, Llc Method and apparatus for sorting materials according to relative composition
CN1942759B (en) * 2004-03-12 2011-01-12 苏珊·M·塞尔肖普 Detection of diamonds
DE102005010867A1 (en) * 2005-03-07 2006-10-19 Commodas Daten- Und Systemtechnik Nach Mass Gmbh Particle analysis or identification device for use in conveying flow, has linear sensors and processing unit calculating absorption characteristic of particles from signals of sensors of different spectral sensitivity
EP2243021B1 (en) * 2008-02-15 2018-01-24 Mayo Foundation For Medical Education And Research System and method for quantitative imaging of chemical composition to decompose multiple materials
PL2198983T3 (en) 2008-12-19 2012-04-30 Omya Int Ag Method for separating mineral impurities from calcium carbonate-containing rocks by X-ray sorting
US8610019B2 (en) 2009-02-27 2013-12-17 Mineral Separation Technologies Inc. Methods for sorting materials
CN103442815B (en) 2011-01-07 2015-04-22 休伦瓦雷钢铁公司 Scrap metal sorting system
RU2465051C2 (en) * 2011-02-14 2012-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кабардино-Балкарский государственный университет им. Х.М. Бербекова" (КБГУ) Method of ore-picking
RU2470714C1 (en) * 2011-07-21 2012-12-27 Общество с ограниченной ответственностью "Лаборатория рентгенодиагностических систем" Method of separating diamonds
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
GB201220418D0 (en) 2012-11-13 2012-12-26 Kromek Ltd Identification of materials
GB201220419D0 (en) 2012-11-13 2012-12-26 Kromek Ltd Identification of materials
RU2551486C1 (en) * 2013-12-24 2015-05-27 Открытое акционерное общество "Иркутский научно-исследовательский институт благородных и редких металлов и алмазов" ОАО "Иргиредмет" Method for x-ray radiometric separation of diamond-bearing materials
RU2623692C2 (en) * 2015-10-15 2017-06-28 Общество с ограниченной ответственностью "Лаборатория Скантроник" System and method for detecting diamonds in kimberlite and method for pre-beneficiating diamonds with their use
CN107470182A (en) * 2016-06-08 2017-12-15 郑州立子加速器科技有限公司 A kind of gamma-rays tobacco leaf screening plant
CN108273752A (en) * 2018-03-13 2018-07-13 顺丰科技有限公司 Dust-extraction unit and automatic sorting apparatus for automatic sorting apparatus
EP4208301A1 (en) * 2020-09-02 2023-07-12 Botswana International University of Science and Technology Method and system for sorting of diamonds
CN113210117A (en) * 2021-05-13 2021-08-06 盾构及掘进技术国家重点实验室 Rock sorting and crushing system based on infrared thermal imaging and microwave heating
WO2023194919A1 (en) * 2022-04-05 2023-10-12 Gem Recovery Systems Limited Method for diamond detection

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
AU689515B2 (en) 1998-04-02
AU1005495A (en) 1995-07-20
GB2285506B (en) 1998-07-01
ZA9551B (en) 1995-09-11
CA2139537A1 (en) 1995-07-08
CA2139537C (en) 2007-04-24
GB9500269D0 (en) 1995-03-01
GB2285506A (en) 1995-07-12
BR9500038A (en) 1995-10-03

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