GB939537A - Process and apparatus for grading radioactive ores - Google Patents

Process and apparatus for grading radioactive ores

Info

Publication number
GB939537A
GB939537A GB14990/61A GB1499061A GB939537A GB 939537 A GB939537 A GB 939537A GB 14990/61 A GB14990/61 A GB 14990/61A GB 1499061 A GB1499061 A GB 1499061A GB 939537 A GB939537 A GB 939537A
Authority
GB
United Kingdom
Prior art keywords
voltage
april
proportional
conveyer belt
ore
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
Application number
GB14990/61A
Inventor
Andre Laforet
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB939537A publication Critical patent/GB939537A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
    • B03B13/06—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects using absorption or reflection of radioactive emanation
    • 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
    • B07C5/346—Sorting according to other particular properties according to radioactive properties

Abstract

939,537. Measuring weight electrically. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 25, 1961 [April 25, 1960], No. 14990/61. Class 40 (1). [Also in Group XL (b)] A voltage t1 (Fig. 1) proportional to the weight of radioactive ores carried by a conveyer belt 1 is derived via a rectifier 20 from a transformer 19 the current through the primary of which is determined by the position in an inductance 18, connected in series with the transformer primary, of a magnetic core 17 attached to a deflectable platform 14 across which the conveyer belt travels. This voltage is then utilized in . circuit 7 to adjust the'threshold value at which an electrically operated flap 3 directs the ore into one or other of shoots 5, 6 in accordance with the value of a voltage t2 proportional to the radio-activity of the separated ore in container 9.
GB14990/61A 1960-04-25 1961-04-25 Process and apparatus for grading radioactive ores Expired GB939537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR825282A FR1263281A (en) 1960-04-25 1960-04-25 Method and installation for sorting radioactive ores or radioactive objects

Publications (1)

Publication Number Publication Date
GB939537A true GB939537A (en) 1963-10-16

Family

ID=8730027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14990/61A Expired GB939537A (en) 1960-04-25 1961-04-25 Process and apparatus for grading radioactive ores

Country Status (5)

Country Link
BE (1) BE602337A (en)
FR (1) FR1263281A (en)
GB (1) GB939537A (en)
LU (1) LU39982A1 (en)
OA (1) OA01330A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823705A1 (en) * 1977-05-31 1978-12-07 Coal Industry Patents Ltd METHOD FOR DETERMINING THE PROPORTION OF AT LEAST ONE MATERIAL IN A MOVING MATERIAL MIXTURE, AND DEVICE FOR CARRYING OUT THE METHOD
US4580684A (en) * 1982-01-27 1986-04-08 General Mining Union Corporation Limited Radiometric measurement
US9676006B2 (en) 2013-02-07 2017-06-13 Grs Valtech Method for the sorting of contaminated matter in continuous flow and corresponding device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374792B1 (en) * 1988-12-21 1996-05-15 Hitachi, Ltd. System for discriminating radiation-contaminated fragments and apparatus for measuring radioactivity of fragments

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823705A1 (en) * 1977-05-31 1978-12-07 Coal Industry Patents Ltd METHOD FOR DETERMINING THE PROPORTION OF AT LEAST ONE MATERIAL IN A MOVING MATERIAL MIXTURE, AND DEVICE FOR CARRYING OUT THE METHOD
US4275298A (en) * 1977-05-31 1981-06-23 Coal Industry (Patents) Limited Method of and apparatus for determining the proportion of at least one material in a moving mixture of materials
US4580684A (en) * 1982-01-27 1986-04-08 General Mining Union Corporation Limited Radiometric measurement
US9676006B2 (en) 2013-02-07 2017-06-13 Grs Valtech Method for the sorting of contaminated matter in continuous flow and corresponding device

Also Published As

Publication number Publication date
FR1263281A (en) 1961-06-09
LU39982A1 (en) 1961-06-06
OA01330A (en) 1969-02-15
BE602337A (en) 1961-07-31

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