GB389567A - Improvements in or relating to the separation of materials of different specific gravities - Google Patents
Improvements in or relating to the separation of materials of different specific gravitiesInfo
- Publication number
- GB389567A GB389567A GB3258531A GB3258531A GB389567A GB 389567 A GB389567 A GB 389567A GB 3258531 A GB3258531 A GB 3258531A GB 3258531 A GB3258531 A GB 3258531A GB 389567 A GB389567 A GB 389567A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- suspension
- water
- tank
- fine coal
- 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
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/38—Devices therefor, other than using centrifugal force of conical receptacle type
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
389,567. Washing granular materials. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Chance, T. ; Merion, Pennsylvania, U.S.A.) Nov. 24, 1931, No. 32585. [Class 82 (ii).] In a process for separating coal, ores, or other granular materials from refuse in which the separation is effected in a high density fluid comprising a suspension of a finely divided solid such as sand in a liquid such as water, the suspension being maintained by mechanical or hydraulic agitation, means are provided to prevent the accumulation in the system of fine coal, ore, &c. either present in the feed or produced by attrition in the separating tank. Coal is fed over a screen 2 to a separating tank 3 containing a suspension of sand in water of sufficient density to float the coal while allowing the refuse to sink to a refuse chamber 5 controlled by valves 4. Coal, mixed with fine coal and the suspension liquid, overflows to a vibrating screen 7 from which the clean coal is discharged at 9 while the refuse is discharged from the chamber 5 on to a vibrating screen 6 along which it passes to a discharge trough 8. The fine coal and suspension liquid passing through the screen 7 and the suspension liquid passing through the screen 6 are led by a pipe 10 to near the bottom of a vessel 11, in which the water and fine coal tend to rise and overflow into a tank 16 while a dense suspension of sand is withdrawn from the bottom by a pump 14 and returned to the separating tank 3. Some of the fine coal and water in the tank 16 is discharged at an overflow 20 or through valve spigots 21, the rate of discharge being controlled to prevent accumulation of fine coal in the system. Additional water is supplied at any point of the system by a valved pipe 22, the remaining water and fine coal in the tank 16 being recirculated by the pump 18 to the bottom of the tank 3 where it helps to maintain the suspension, and to the screen sprays. A plurality of vessels 11, tanks 16, sand pumps 14, and water pumps 18 may be employed. Specification 119,038, [Class 82 (ii), Washing granular &c.], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3258531A GB389567A (en) | 1931-11-24 | 1931-11-24 | Improvements in or relating to the separation of materials of different specific gravities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3258531A GB389567A (en) | 1931-11-24 | 1931-11-24 | Improvements in or relating to the separation of materials of different specific gravities |
Publications (1)
Publication Number | Publication Date |
---|---|
GB389567A true GB389567A (en) | 1933-03-23 |
Family
ID=10340924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3258531A Expired GB389567A (en) | 1931-11-24 | 1931-11-24 | Improvements in or relating to the separation of materials of different specific gravities |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB389567A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113573815A (en) * | 2018-12-14 | 2021-10-29 | 特里伯公司 | System and method for treating a combination of a liquid and a particulate material |
-
1931
- 1931-11-24 GB GB3258531A patent/GB389567A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113573815A (en) * | 2018-12-14 | 2021-10-29 | 特里伯公司 | System and method for treating a combination of a liquid and a particulate material |
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