JPS562394A - Treatment of brown coal - Google Patents
Treatment of brown coalInfo
- Publication number
- JPS562394A JPS562394A JP7845879A JP7845879A JPS562394A JP S562394 A JPS562394 A JP S562394A JP 7845879 A JP7845879 A JP 7845879A JP 7845879 A JP7845879 A JP 7845879A JP S562394 A JPS562394 A JP S562394A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- crushing strength
- brown coal
- dewatered
- slurried
- 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
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
PURPOSE: To impart a specific crushing strength and bulk specific gravity to brown coal and to eliminate the dusting in transportation, by conveying the slurried coal from a mine to a coal yard, and by dewatering and granulating the coal.
CONSTITUTION: Brown coal is pulverized into particles of average size 40W200μ in the pulverizing step 1, slurried into a 20W30wt% aqueous slurry, and transferred to the coal yard via the pipeline 3. The resulting slurry is dewatered to give a water content of about 70wt% in the dewatering step 4, granulated by a disc granulator in the granulating step 5 to form a spherical coal having a grain size ≤5mm and a crushing strength of 0.5W1kg/cm2. The coal is then dewatered and dried at 100°C in the drying step 6 to form the spherical brown coal 7 having a grain size ≤5mm, a crushing strength of 2W3kg/cm2 and a bulk specific gravity of 0.5W0.6.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7845879A JPS562394A (en) | 1979-06-21 | 1979-06-21 | Treatment of brown coal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7845879A JPS562394A (en) | 1979-06-21 | 1979-06-21 | Treatment of brown coal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS562394A true JPS562394A (en) | 1981-01-12 |
Family
ID=13662580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7845879A Pending JPS562394A (en) | 1979-06-21 | 1979-06-21 | Treatment of brown coal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS562394A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58127792A (en) * | 1982-01-25 | 1983-07-29 | Hitachi Zosen Corp | Controlling spontaneous ignition of low-grade coal |
WO2009079686A1 (en) * | 2007-12-21 | 2009-07-02 | National Power Australia Investments Limited | Method for producing a lignite product |
JP2010069458A (en) * | 2008-09-22 | 2010-04-02 | Ube Machinery Corporation Ltd | Method and system for crushing raw material |
-
1979
- 1979-06-21 JP JP7845879A patent/JPS562394A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58127792A (en) * | 1982-01-25 | 1983-07-29 | Hitachi Zosen Corp | Controlling spontaneous ignition of low-grade coal |
WO2009079686A1 (en) * | 2007-12-21 | 2009-07-02 | National Power Australia Investments Limited | Method for producing a lignite product |
AU2008341004B2 (en) * | 2007-12-21 | 2012-11-15 | Australian Power Partners Bv | Method for producing a lignite product |
JP2010069458A (en) * | 2008-09-22 | 2010-04-02 | Ube Machinery Corporation Ltd | Method and system for crushing raw material |
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