GB1349689A - Method and apparatus for separation of particulate material by the application of electric fields - Google Patents
Method and apparatus for separation of particulate material by the application of electric fieldsInfo
- Publication number
- GB1349689A GB1349689A GB1681271A GB1681271A GB1349689A GB 1349689 A GB1349689 A GB 1349689A GB 1681271 A GB1681271 A GB 1681271A GB 1681271 A GB1681271 A GB 1681271A GB 1349689 A GB1349689 A GB 1349689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- path
- separated
- particulate material
- supplied
- electrodes
- 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
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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/02—Separators
- B03C7/023—Non-uniform field separators
Landscapes
- Electrostatic Separation (AREA)
Abstract
1349689 Electrostatic separators FMC CORP 25 May 1971 [9 July 1970] 16812/71 Heading B2J Fine particulate material moving in a path with a horizontal component is separated by applying an electric field across said path between electrodes spaced above and below said path and extending transversely to said path. As shown, particulate material M such as mixed mineral ores to be separated is fed by a vibratory feeder trough and hopper combination 22 which may be heated into one end of the electrostatic separator 20 through which it is propelled by a vibratory feeder 46. The separator comprises top and bottom electrode plates 42, 40 which have matching electrode grids 60 (62) painted or sprayed on their upper and lower surfaces respectively in a herring- bone pattern. The electrodes are connected to an AC supply with a higher potential being supplied to the central portions 60a, b (62a, b) than to the outer portions 60c, (62c). Particles which are influenced by the electric field tend to move laterally across the plate 40, past deflector members 80 and barrier structures 90 to pass through apertures 97 into a collecting trough 26. Those particles which pass through deflector members 80 but do not reach the barrier structures 90 are guided at 103 into middling containers 28 for re-cycling. Material which is not influenced is discharged by chute 54 onto a conveyor 24. The matching electrode grids on plates. 42, 40 are preferably staggered longitudinally (Fig. 8, not shown). Several electrodes may be stacked on top of each other. Different frequencies in the audio range may be supplied depending on the response characteristics of the material to be separated.. Different frequencies may be supplied to different longitudinal portions of the electrode grid structure to separate different materials sequentially. The electrode plates may be tilted sideways and/or be rifled to assist the separation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5351870A | 1970-07-09 | 1970-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1349689A true GB1349689A (en) | 1974-04-10 |
Family
ID=21984828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1681271A Expired GB1349689A (en) | 1970-07-09 | 1971-05-25 | Method and apparatus for separation of particulate material by the application of electric fields |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3720312A (en) |
| JP (1) | JPS5636985B1 (en) |
| BE (1) | BE769656A (en) |
| BR (1) | BR7102827D0 (en) |
| CA (1) | CA942709A (en) |
| DE (1) | DE2134298C3 (en) |
| ES (1) | ES392591A1 (en) |
| FR (1) | FR2098272B1 (en) |
| GB (1) | GB1349689A (en) |
| NL (1) | NL151914B (en) |
| ZA (1) | ZA714372B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130922A (en) * | 1982-11-17 | 1984-06-13 | Blue Circle Ind Plc | Electrostatic separation particulate materials |
| GB2130921A (en) * | 1982-11-17 | 1984-06-13 | Blue Circle Ind Plc | Electrostatic separation of particulate materials |
| WO2008140350A1 (en) * | 2007-05-15 | 2008-11-20 | Andrey Andreevich Churkin | Method for ionization separation of dispersed materials and a device for carrying out said method |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52106310A (en) * | 1976-03-05 | 1977-09-06 | Asahi Glass Co Ltd | Refining of material containing tio2 |
| US4122002A (en) * | 1977-05-09 | 1978-10-24 | Hauskins Jr John B | Method and apparatus for electrostatically separating particles from a mixture of particles |
| JPS57123836A (en) * | 1981-01-17 | 1982-08-02 | Nippon Telegr & Teleph Corp <Ntt> | Preparation optical fiber having single mode of internal stress and double refraction |
| US4357234A (en) * | 1981-05-18 | 1982-11-02 | Canadian Patents & Development Limited | Alternating potential electrostatic separator of particles with different physical properties |
| NO834171L (en) * | 1982-11-17 | 1984-05-18 | Blue Circle Ind Plc | PROCEDURE AND APPARATUS FOR SEPARATION OF PARTICLE MATERIAL |
| US4565624A (en) * | 1983-04-04 | 1986-01-21 | Edward Martinez | Gravity--magnetic ore separators |
| US4659457A (en) * | 1983-04-04 | 1987-04-21 | Edward Martinez | Gravity-magnetic ore separators and methods |
| US4512879A (en) * | 1983-07-20 | 1985-04-23 | Battelle Development Corp. | Process for producing a metalliferous concentrate from a particulate feed material |
| US4935122A (en) * | 1986-12-22 | 1990-06-19 | Dreyfuss William C | Mineral separator system |
| US5098558A (en) * | 1989-12-27 | 1992-03-24 | Carpco, Inc. | Adjustable feed accelerator for particle separator |
| JPH04115269U (en) * | 1991-03-29 | 1992-10-13 | 株式会社小松製作所 | internal combustion engine radiator |
| US5909813A (en) * | 1997-01-13 | 1999-06-08 | Lift Feeder Inc. | Force field separator |
| US5904253A (en) * | 1997-01-15 | 1999-05-18 | Separation Technologies, Inc. | Belt separator system having improved belt geometry |
| MY139225A (en) | 1998-02-26 | 2009-08-28 | Anglo Operations Ltd | Method and apparatus for separating particles |
| US6098810A (en) * | 1998-06-26 | 2000-08-08 | Pueblo Process, Llc | Flotation process for separating silica from feldspar to form a feed material for making glass |
| US6320148B1 (en) * | 1999-08-05 | 2001-11-20 | Roe-Hoan Yoon | Electrostatic method of separating particulate materials |
| US7767924B2 (en) * | 2003-09-09 | 2010-08-03 | Korea Institute Of Geoscience And Mineral Resources | Electrostatic separation system for removal for fine metal from plastic |
| US7527675B2 (en) * | 2006-09-13 | 2009-05-05 | United Technologies Corporation | Electrostatic particulate separation system and device |
| US8552326B2 (en) | 2010-09-03 | 2013-10-08 | Separation Technologies Llc | Electrostatic separation control system |
| US9393573B2 (en) | 2014-04-24 | 2016-07-19 | Separation Technologies Llc | Continuous belt for belt-type separator devices |
| US9764332B2 (en) | 2015-02-13 | 2017-09-19 | Separation Technologies Llc | Edge air nozzles for belt-type separator devices |
| MX2022015626A (en) | 2020-06-22 | 2023-01-11 | Separation Tech Llc | Process for dry beneficiation of fine and very fine iron ore by size and electrostatic segregation. |
| CN115090563B (en) * | 2022-07-11 | 2024-03-22 | 合肥美亚光电技术股份有限公司 | Color sorter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1179937A (en) * | 1915-02-02 | 1916-04-18 | Jakob Kraus | Method of and apparatus for separating and cleaning materials in an electrostatic field. |
| US1355477A (en) * | 1918-11-04 | 1920-10-12 | United Chemical & Organic Prod | Means for separating mixtures |
| US2615570A (en) * | 1949-08-12 | 1952-10-28 | Gen Mills Inc | Middlings purifier |
| US2699869A (en) * | 1952-04-18 | 1955-01-18 | Gen Mills Inc | Electrostatic separator |
| US2848108A (en) * | 1956-12-31 | 1958-08-19 | Gen Mills Inc | Method and apparatus for electrostatic separation |
| US3249225A (en) * | 1962-02-09 | 1966-05-03 | Litton Systems Inc | Electrostatic separation means |
| US3291302A (en) * | 1963-10-28 | 1966-12-13 | Gen Mills Inc | Conveying and separating appartus and process |
-
1970
- 1970-07-09 US US00053518A patent/US3720312A/en not_active Expired - Lifetime
-
1971
- 1971-05-11 BR BR2827/71A patent/BR7102827D0/en unknown
- 1971-05-25 GB GB1681271A patent/GB1349689A/en not_active Expired
- 1971-05-25 NL NL717107115A patent/NL151914B/en unknown
- 1971-06-24 ES ES392591A patent/ES392591A1/en not_active Expired
- 1971-07-02 JP JP4812871A patent/JPS5636985B1/ja active Pending
- 1971-07-02 CA CA117,218A patent/CA942709A/en not_active Expired
- 1971-07-05 ZA ZA714372A patent/ZA714372B/en unknown
- 1971-07-07 BE BE769656A patent/BE769656A/en unknown
- 1971-07-08 FR FR7124998A patent/FR2098272B1/fr not_active Expired
- 1971-07-09 DE DE2134298A patent/DE2134298C3/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130922A (en) * | 1982-11-17 | 1984-06-13 | Blue Circle Ind Plc | Electrostatic separation particulate materials |
| GB2130921A (en) * | 1982-11-17 | 1984-06-13 | Blue Circle Ind Plc | Electrostatic separation of particulate materials |
| WO2008140350A1 (en) * | 2007-05-15 | 2008-11-20 | Andrey Andreevich Churkin | Method for ionization separation of dispersed materials and a device for carrying out said method |
Also Published As
| Publication number | Publication date |
|---|---|
| BE769656A (en) | 1971-11-16 |
| BR7102827D0 (en) | 1973-04-17 |
| ZA714372B (en) | 1972-04-26 |
| DE2134298A1 (en) | 1972-01-13 |
| JPS5636985B1 (en) | 1981-08-27 |
| NL151914B (en) | 1977-01-17 |
| FR2098272A1 (en) | 1972-03-10 |
| DE2134298C3 (en) | 1974-08-22 |
| CA942709A (en) | 1974-02-26 |
| NL7107115A (en) | 1972-01-11 |
| ES392591A1 (en) | 1975-04-01 |
| FR2098272B1 (en) | 1976-03-19 |
| US3720312A (en) | 1973-03-13 |
| DE2134298B2 (en) | 1974-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |