JPS57145184A - Coal deashing - Google Patents
Coal deashingInfo
- Publication number
- JPS57145184A JPS57145184A JP2987881A JP2987881A JPS57145184A JP S57145184 A JPS57145184 A JP S57145184A JP 2987881 A JP2987881 A JP 2987881A JP 2987881 A JP2987881 A JP 2987881A JP S57145184 A JPS57145184 A JP S57145184A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- ash
- fluidized layer
- pulverized coal
- specific gravity
- 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
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
PURPOSE: To accomplish coal deashing at a low cost and at a high deashing rate, by fluidizing a pulverized coal in a fluidized layer, agglomerating only ash by spraying an aq. alkali soln., and separating a coal component from the ash based on the difference in specific gravity.
CONSTITUTION: A coal is pulverized and the obtd. pulverized coal is supplied to fluidized layer body 1. Fluidizing gas 4 is supplied via flow distributor 3 provided on the bottom of the body 1 into the fluidized layer by blower 2, and compressed air 5 and aq. alkali soln. 6 are atomized through spray means 7. Thus the ash isolated from the pulverized coal is agglomerated by the action of the aq. alkali soln. 6 and the agglomerated ash moves to the fluidized layer bottom because of its larger specific gravity than an upwardly acting force due to the fluidizing gas 4. The deashed pulverized coal floats up to the top portion of the fluidized layer because of low specific gravity, so that it is possible to easily separate the agglomerated ash from the deashed pulverized coal.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2987881A JPS57145184A (en) | 1981-03-04 | 1981-03-04 | Coal deashing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2987881A JPS57145184A (en) | 1981-03-04 | 1981-03-04 | Coal deashing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57145184A true JPS57145184A (en) | 1982-09-08 |
Family
ID=12288229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2987881A Pending JPS57145184A (en) | 1981-03-04 | 1981-03-04 | Coal deashing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57145184A (en) |
-
1981
- 1981-03-04 JP JP2987881A patent/JPS57145184A/en active Pending
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