GB662794A - An improved process for the separation according to specific gravity of mixtures of particles differing in grain size and specific gravity - Google Patents
An improved process for the separation according to specific gravity of mixtures of particles differing in grain size and specific gravityInfo
- Publication number
- GB662794A GB662794A GB10379/49A GB1037949A GB662794A GB 662794 A GB662794 A GB 662794A GB 10379/49 A GB10379/49 A GB 10379/49A GB 1037949 A GB1037949 A GB 1037949A GB 662794 A GB662794 A GB 662794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- suspension
- coal
- specific gravity
- separated
- fraction
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
- B03B5/34—Applications of hydrocyclones
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
In a process for separating materials according to specific gravity, the separation is effected in a suspension which is formed from one of the materials to be separated. The material to be separated is first divided into at least two fractions according to size, and in the embodiment described there are two such fractions, one (the fine fraction), containing particles up to 1 m.m.; and the other (the coarse fraction) containing particles 1-8 m.m. in diameter. Coal and shale are to be separated using a magnetic suspension. The coarse fraction obtained from the separation is mixed with the suspension and separated, in a cyclone, into coarse shales and coarse coal, each of which is screened separately on a 1 m.m. screen and rinsed with clarified water from the fine fraction thickeners. This rinsing water carrying the suspension from the shale and coal is recirculated to the mixing step. The coal is also rinsed, whilst on its screen, with clean water and the diluted suspension thus obtained is in part fed to the mixing stage of each fraction. In the fine fraction plant a similar mixing with suspension takes place, then a separation according to specific gravity into coal and shale is accomplished in a cyclone. Each of these fractions is treated by separate magnetic separators to remove the magnetite suspension which is recirculated after demagnetization. The remaining flows from the magnetic separators are thickened and coal recovered as slimes. The clarified water from both thickeners is supplied to the screen sprays. Specification 655,957, is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL662794X | 1948-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB662794A true GB662794A (en) | 1951-12-12 |
Family
ID=19798656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10379/49A Expired GB662794A (en) | 1948-04-20 | 1949-04-19 | An improved process for the separation according to specific gravity of mixtures of particles differing in grain size and specific gravity |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB662794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830741A (en) * | 1987-10-06 | 1989-05-16 | Haldex Vallalat | Method for efficient separation of coal from coal spoil in two stages of hydrocyclonic separation |
| CN104263397A (en) * | 2014-09-17 | 2015-01-07 | 中国矿业大学(北京) | Process for full-particle-size sorting and enriching kerogen from oil shale |
-
1949
- 1949-04-19 GB GB10379/49A patent/GB662794A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830741A (en) * | 1987-10-06 | 1989-05-16 | Haldex Vallalat | Method for efficient separation of coal from coal spoil in two stages of hydrocyclonic separation |
| CN104263397A (en) * | 2014-09-17 | 2015-01-07 | 中国矿业大学(北京) | Process for full-particle-size sorting and enriching kerogen from oil shale |
| CN104263397B (en) * | 2014-09-17 | 2015-11-11 | 中国矿业大学(北京) | A kind of resinous shale wholegrain level sorting enrichment oil matrix technique |
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