JPS5657894A - Recovery of coal from raw coal slurry - Google Patents
Recovery of coal from raw coal slurryInfo
- Publication number
- JPS5657894A JPS5657894A JP13329979A JP13329979A JPS5657894A JP S5657894 A JPS5657894 A JP S5657894A JP 13329979 A JP13329979 A JP 13329979A JP 13329979 A JP13329979 A JP 13329979A JP S5657894 A JPS5657894 A JP S5657894A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- coal
- fine powder
- recover
- raw
- 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.)
- Pending
Links
Abstract
PURPOSE: To recover dried coal having low water content from the slurry of raw coal, in high efficiency and dehydration efficiency, by separating the raw coal slurry into coarse coal slurry and fine powder slurry, dehydrating the former slurry as it is, while subjecting the latter slurry to concentration, addition of mineral oil, granulation and dehydration.
CONSTITUTION: The slurry of raw coal is separated into the coarse coal slurry (the diameters of coal particles are 1W30mm) and the fine powder slurry (≤1mm in diameter) with a fine powder separator 6 and/or a storage tank 8. The coarse coal slurry is dehydrated with a dehydrator 10 to recover the coarse coal 11. On the other hand, the fine powder slurry is concentrated to the concentration of about 30wt% in the tank 14, added with 5W20wt% of mineral oil 17, granulated, and dehydrated with the dehydrator 10' to recover the granulated coal 19.
EFFECT: The process is economical because the necessary amount of the mineral oil is small, and the oil can be recycled.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13329979A JPS5657894A (en) | 1979-10-16 | 1979-10-16 | Recovery of coal from raw coal slurry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13329979A JPS5657894A (en) | 1979-10-16 | 1979-10-16 | Recovery of coal from raw coal slurry |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657894A true JPS5657894A (en) | 1981-05-20 |
Family
ID=15101402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13329979A Pending JPS5657894A (en) | 1979-10-16 | 1979-10-16 | Recovery of coal from raw coal slurry |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657894A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5370076A (en) * | 1976-12-03 | 1978-06-22 | Shell Int Research | Method of aggregating coal powder |
-
1979
- 1979-10-16 JP JP13329979A patent/JPS5657894A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5370076A (en) * | 1976-12-03 | 1978-06-22 | Shell Int Research | Method of aggregating coal powder |
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