GB2251305B - Sorting diamonds or other minerals. - Google Patents

Sorting diamonds or other minerals.

Info

Publication number
GB2251305B
GB2251305B GB9202514A GB9202514A GB2251305B GB 2251305 B GB2251305 B GB 2251305B GB 9202514 A GB9202514 A GB 9202514A GB 9202514 A GB9202514 A GB 9202514A GB 2251305 B GB2251305 B GB 2251305B
Authority
GB
United Kingdom
Prior art keywords
minerals
sorting diamonds
diamonds
sorting
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
GB9202514A
Other versions
GB9202514D0 (en
GB2251305A (en
Inventor
Andrew David Garry Stewart
Robin Wyncliffe Smith
Martin Phillip Smith
Daniel Johannes Brink
Martin Cooper
Christopher Mark Welbourn
Paul Martyn Spear
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.)
Gersan Ets
Original Assignee
Gersan Ets
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
Priority claimed from GB888810724A external-priority patent/GB8810724D0/en
Priority claimed from GB888810723A external-priority patent/GB8810723D0/en
Priority claimed from GB888815941A external-priority patent/GB8815941D0/en
Priority claimed from GB888816157A external-priority patent/GB8816157D0/en
Priority claimed from GB888816167A external-priority patent/GB8816167D0/en
Priority claimed from GB888816165A external-priority patent/GB8816165D0/en
Priority claimed from GB888816164A external-priority patent/GB8816164D0/en
Priority claimed from GB888816156A external-priority patent/GB8816156D0/en
Priority claimed from GB888826225A external-priority patent/GB8826225D0/en
Priority claimed from GB898906853A external-priority patent/GB8906853D0/en
Priority claimed from GB8910414A external-priority patent/GB2219394B/en
Priority to GB9202514A priority Critical patent/GB2251305B/en
Application filed by Gersan Ets filed Critical Gersan Ets
Publication of GB9202514D0 publication Critical patent/GB9202514D0/en
Publication of GB2251305A publication Critical patent/GB2251305A/en
Application granted granted Critical
Publication of GB2251305B publication Critical patent/GB2251305B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
    • B07C5/366—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means during free fall of the articles
    • 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
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
    • B07C5/3427—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain by changing or intensifying the optical properties prior to scanning, e.g. by inducing fluorescence under UV or x-radiation, subjecting the material to a chemical reaction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels
    • 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
    • G01N23/22—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 measuring secondary emission from the material
    • G01N23/223—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 measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1734—Sequential different kinds of measurements; Combining two or more methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1789—Time resolved
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N2021/845—Objects on a conveyor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets
    • G01N2021/8609—Optical head specially adapted
    • G01N2021/8627—Optical head specially adapted with an illuminator over the whole width
    • G01N2021/8636—Detecting arrangement therefore, e.g. collimators, screens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/069—Supply of sources
    • G01N2201/0696—Pulsed
    • G01N2201/0697—Pulsed lasers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/076—X-ray fluorescence
GB9202514A 1988-05-06 1992-01-27 Sorting diamonds or other minerals. Expired - Fee Related GB2251305B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9202514A GB2251305B (en) 1988-05-06 1992-01-27 Sorting diamonds or other minerals.

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
GB888810724A GB8810724D0 (en) 1988-05-06 1988-05-06 Sensing narrow band of frequencies
GB888810723A GB8810723D0 (en) 1988-05-06 1988-05-06 Identifying specific objects/zones
GB888815941A GB8815941D0 (en) 1988-07-05 1988-07-05 Identifying position of objects/zones
GB888816156A GB8816156D0 (en) 1988-07-07 1988-07-07 Method of identifying individual objects/zones
GB888816164A GB8816164D0 (en) 1988-07-07 1988-07-07 Method of identifying specific objects/zones
GB888816165A GB8816165D0 (en) 1988-07-07 1988-07-07 Method of identifying specific objects/zones
GB888816157A GB8816157D0 (en) 1988-07-07 1988-07-07 Method of identifying specific objects/zones
GB888816167A GB8816167D0 (en) 1988-07-07 1988-07-07 Identifying objects/zones
GB888826225A GB8826225D0 (en) 1988-11-09 1988-11-09 Examining object
GB898906853A GB8906853D0 (en) 1989-03-23 1989-03-23 Examining an article or objects
GB8910414A GB2219394B (en) 1988-05-06 1989-05-05 Sensing a narrow frequency band of radiation and examining objects or zones
GB9202514A GB2251305B (en) 1988-05-06 1992-01-27 Sorting diamonds or other minerals.

Publications (3)

Publication Number Publication Date
GB9202514D0 GB9202514D0 (en) 1992-03-25
GB2251305A GB2251305A (en) 1992-07-01
GB2251305B true GB2251305B (en) 1992-09-16

Family

ID=27581660

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9202515A Expired - Fee Related GB2251306B (en) 1988-05-06 1992-01-27 Monitoring an apparatus which uses scanned radiation
GB9202514A Expired - Fee Related GB2251305B (en) 1988-05-06 1992-01-27 Sorting diamonds or other minerals.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9202515A Expired - Fee Related GB2251306B (en) 1988-05-06 1992-01-27 Monitoring an apparatus which uses scanned radiation

Country Status (1)

Country Link
GB (2) GB2251306B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2296452B2 (en) * 2005-06-29 2009-12-04 Universidad Politecnica De Madrid DETECTOR OF PEDUNCULES AND VEGETABLE SIZES BASED ON THE OPTICAL DESIGNATION WITH LINE LASER.
AT8647U1 (en) 2005-08-08 2006-10-15 Binder Co Ag METHOD FOR DETECTING AND SORTING GLASS
CN112105919B (en) * 2018-06-08 2023-08-22 株式会社岛津制作所 Fluorescent X-ray analysis device and fluorescent X-ray analysis method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140555A (en) * 1983-05-24 1984-11-28 British Petroleum Co Plc Diamond separation
WO1988001378A1 (en) * 1986-08-20 1988-02-25 The British Petroleum Company P.L.C. Separation process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB899852A (en) * 1958-04-25 1962-06-27 Mandrel Industries Photoelectric amplifier and sorting system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140555A (en) * 1983-05-24 1984-11-28 British Petroleum Co Plc Diamond separation
WO1988001378A1 (en) * 1986-08-20 1988-02-25 The British Petroleum Company P.L.C. Separation process

Also Published As

Publication number Publication date
GB9202515D0 (en) 1992-03-25
GB9202514D0 (en) 1992-03-25
GB2251305A (en) 1992-07-01
GB2251306B (en) 1992-09-16
GB2251306A (en) 1992-07-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050505