GB1156592A - Improvements in or relating to Method and Apparatus for Determining Particle Size Distribution in Discrete Solids - Google Patents
Improvements in or relating to Method and Apparatus for Determining Particle Size Distribution in Discrete SolidsInfo
- Publication number
- GB1156592A GB1156592A GB3083/68A GB308368A GB1156592A GB 1156592 A GB1156592 A GB 1156592A GB 3083/68 A GB3083/68 A GB 3083/68A GB 308368 A GB308368 A GB 308368A GB 1156592 A GB1156592 A GB 1156592A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- ore
- particle size
- size distribution
- fluid
- 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
Links
- 239000002245 particle Substances 0.000 title abstract 7
- 239000007787 solid Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 3
- 239000000523 sample Substances 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 abstract 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000013074 reference sample Substances 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
1,156,592. Detecting particle size distribution photo-electrically. KENNECOTT COPPER CORP. Jan. 19, 1968 [Jan. 19, 1967], No. 3083/68. Heading G1A. In a method of determining particle size distribution in discrete solids, a sample of the discrete solids is introduced into a vessel, through which fluid-flows upwards with reducing velocity as it rises through the vessel, so that the particles seek different levels in the fluid and radiation is passed through the fluid at least one level and measured to detect particles of a size associated with that level. As shown the vessel is made of glass and has three cylindrical sections 15a, 15b and 15c and water entering through a side pipe 24a flows upwardly through the vessel and out through an overflow pipe 18. The vessel is periodically emptied by operation of a valve 25 leading to an outlet pipe 28. After each filling of the vessel a sample of ore taken from a conduit 13 through which it flows is passed through a sample cutter 14 and introduced as at 16 into the top of the vessel. The particles descend under gravity against the flow of water to a position of equilibrium dependent on the particle size. In each of the cylindrical sections 15a and 15b light from an associated source 33 and vertically collimated by an associated slit 34a is passed through the fluid to associated detectors 41, when equilibrium is reached. The detectors which are cadmium sulphide photo-resistors are connected in parallel and the combined output is fed to a pen recorder. The ore in the conduit is slurried ore from a crushing and grinding machine which may be controlled manually or automatically e.g. by feeding back the ore for further processing in accordance with the output. The water is supplied to the side pipe 24a from a constant head apparatus 20 via a visual flowmeter 22. The level of the water can be adjusted by repositioning an outlet pipe 27 and can be set by introducing a reference sample of ore having a known size distribution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61036267A | 1967-01-19 | 1967-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1156592A true GB1156592A (en) | 1969-07-02 |
Family
ID=24444710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3083/68A Expired GB1156592A (en) | 1967-01-19 | 1968-01-19 | Improvements in or relating to Method and Apparatus for Determining Particle Size Distribution in Discrete Solids |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3519353A (en) |
| GB (1) | GB1156592A (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA705498B (en) * | 1969-08-14 | 1971-04-28 | Commw Scient Ind Res Org | Determination of particle size distribution |
| US3662605A (en) * | 1970-05-13 | 1972-05-16 | Nl Industries Inc | Method and means for automating computer-controlled production of particulate materials |
| US3793180A (en) * | 1972-03-21 | 1974-02-19 | Singer Co | Laser-recticle electrophoresis instrument |
| US3764512A (en) * | 1972-05-02 | 1973-10-09 | Singer Co | Laser scanning electrophoresis instrument and system |
| US3869903A (en) * | 1972-07-19 | 1975-03-11 | Permutit Co | Settling rate tester |
| US3766048A (en) * | 1972-11-24 | 1973-10-16 | Univ Illinois | Analysis of polymer mixtures in solution utilizing electrophoretic light scattering apparatus |
| US4010369A (en) * | 1974-01-29 | 1977-03-01 | The United States Of America As Represented By The Secretary Of The Interior | Method for rapid particle size analysis by hydrosizing and nuclear sensing |
| US3982126A (en) * | 1974-03-05 | 1976-09-21 | Outokumpu Oy | Method and device for determining particle size categories of particles dispersed in a liquid |
| US4194391A (en) * | 1977-10-03 | 1980-03-25 | Nalco Chemical Company | Device for determining settling rates of solids or particulate bearing liquid in a continuous process or flowing stream |
| US4282745A (en) * | 1978-03-28 | 1981-08-11 | English Clays Lovering Pochin & Company Ltd. | Particle size determination |
| US4419879A (en) * | 1981-10-16 | 1983-12-13 | Core Laboratories, Inc. | Particle measuring apparatus |
| US5183604A (en) * | 1992-01-24 | 1993-02-02 | The Dow Chemical Company | Size separation of particles contained within a material by the use of nonaqueous hydrodynamic chromatography |
| US5824210A (en) * | 1995-06-06 | 1998-10-20 | Kuryluk; Michael H. | Separation of minerals |
| US7430931B2 (en) * | 2003-08-08 | 2008-10-07 | Konstandinos Zamfes | Microgranulometry and methods of applications |
| WO2008131409A1 (en) * | 2007-04-23 | 2008-10-30 | Tufts University | Methods for calculating particle size distribution |
| CN104950008B (en) * | 2014-03-26 | 2018-01-16 | 南京林业大学 | Method of testing and device based on agricultural chemicals heating power fuming atomization mechanism and effect disquisition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2379158A (en) * | 1943-02-03 | 1945-06-26 | Westinghouse Electric Corp | Particle size determination |
| US3102092A (en) * | 1961-06-01 | 1963-08-27 | Dorr Oliver Inc | Fluidized bed classifier |
| US3237767A (en) * | 1962-03-26 | 1966-03-01 | Atlantic Refining Co | Method and apparatus for the separation of solids |
| GB1112770A (en) * | 1964-12-10 | 1968-05-08 | Hitachi Ltd | Method and apparatus for analysing the particle size distribution of powder |
-
1967
- 1967-01-19 US US610362A patent/US3519353A/en not_active Expired - Lifetime
-
1968
- 1968-01-19 GB GB3083/68A patent/GB1156592A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3519353A (en) | 1970-07-07 |
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