JPS57122986A - Treatment of coal ash - Google Patents
Treatment of coal ashInfo
- Publication number
- JPS57122986A JPS57122986A JP56009912A JP991281A JPS57122986A JP S57122986 A JPS57122986 A JP S57122986A JP 56009912 A JP56009912 A JP 56009912A JP 991281 A JP991281 A JP 991281A JP S57122986 A JPS57122986 A JP S57122986A
- Authority
- JP
- Japan
- Prior art keywords
- line
- humidifier
- coal ash
- ammonium salts
- collected
- 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
- Processing Of Solid Wastes (AREA)
Abstract
PURPOSE: To remove ammonium salts from a coal ash efficiently at low cost by a method wherein an alkaline substance such as slaked lime and water are added to the coal ash collected by a dust collector, and the resulting mixture is agitated in a forced draft to decompose the ammonium salts.
CONSTITUTION: Exhaust gases generated from a coal-fired boiler 10 are introduced into a denitrifying device 20, with ammonia mixed into the exhaust gases through a line a on the upstream of the device 20. The exhaust gas thus denitrified and then cleared of dusts is discharged through a line b, while the collected coal ash collected with ammonium salts adhered thereto is introduced into a humidifier 50 through a line e and is humidified by adding an aqueous solution f of an alkaline substance such as slaked lime, followed by continuously discharging through a line g. The humidifier 50 is attached with a line c for connecting to a blower 60 and a forced draft is provided in the interior of the humidifier 50, so that gaseous ammonia formed through a reaction is rapidly removed from the humidifier 50.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56009912A JPS57122986A (en) | 1981-01-26 | 1981-01-26 | Treatment of coal ash |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56009912A JPS57122986A (en) | 1981-01-26 | 1981-01-26 | Treatment of coal ash |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57122986A true JPS57122986A (en) | 1982-07-31 |
Family
ID=11733311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56009912A Pending JPS57122986A (en) | 1981-01-26 | 1981-01-26 | Treatment of coal ash |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57122986A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5719078A (en) * | 1980-07-09 | 1982-02-01 | Babcock Hitachi Kk | Disposal of fly ash |
-
1981
- 1981-01-26 JP JP56009912A patent/JPS57122986A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5719078A (en) * | 1980-07-09 | 1982-02-01 | Babcock Hitachi Kk | Disposal of fly ash |
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