JPS57122923A - Waste heat recovery and desulfurization apparatus - Google Patents
Waste heat recovery and desulfurization apparatusInfo
- Publication number
- JPS57122923A JPS57122923A JP56008349A JP834981A JPS57122923A JP S57122923 A JPS57122923 A JP S57122923A JP 56008349 A JP56008349 A JP 56008349A JP 834981 A JP834981 A JP 834981A JP S57122923 A JPS57122923 A JP S57122923A
- Authority
- JP
- Japan
- Prior art keywords
- flue
- aqueous solution
- naoh aqueous
- desulfurization apparatus
- nozzle
- 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 enhance boiler efficiency, prevent generation of white smoke as well as to reduce an installation cost and an operation cost of the desulfurization apparatus by spraying a desulfurizing and neutralizing liquid to a heat exchange part of a flue.
CONSTITUTION: To a position above a water supplying and preheating pipe 2 provided to the inside of the flue 1, a nozzle 3 is arranged and SO2 in an exhaust gas flowed into the flue 1 is contacted with a NaOH aqueous solution sprayed from the nozzle 3 to be desulfurized as Na2SO3. The sprayed liquid is returned to a NaOH aqueous solution tank 4 through a separation tank 8 to be reused. The water supplying and preheating pipe 2 is heat exchanged with the NaOH aqueous solution to carry out cooling thereof and, at the same time, to carry out preheating of water supplied to a boiler.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56008349A JPS57122923A (en) | 1981-01-21 | 1981-01-21 | Waste heat recovery and desulfurization apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56008349A JPS57122923A (en) | 1981-01-21 | 1981-01-21 | Waste heat recovery and desulfurization apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57122923A true JPS57122923A (en) | 1982-07-31 |
Family
ID=11690740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56008349A Pending JPS57122923A (en) | 1981-01-21 | 1981-01-21 | Waste heat recovery and desulfurization apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57122923A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6245323A (en) * | 1985-08-22 | 1987-02-27 | Chiyoda Chem Eng & Constr Co Ltd | Method of treating exhaust gas of catalyst regenerating tower |
JPH09236206A (en) * | 1996-02-28 | 1997-09-09 | Nippon Steel Corp | Device for recovering waste heat |
CN104633688A (en) * | 2014-12-25 | 2015-05-20 | 浙江农林大学 | Wood-burning boiler flue heat exchange and two-level smoke removing device |
-
1981
- 1981-01-21 JP JP56008349A patent/JPS57122923A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6245323A (en) * | 1985-08-22 | 1987-02-27 | Chiyoda Chem Eng & Constr Co Ltd | Method of treating exhaust gas of catalyst regenerating tower |
JPH09236206A (en) * | 1996-02-28 | 1997-09-09 | Nippon Steel Corp | Device for recovering waste heat |
CN104633688A (en) * | 2014-12-25 | 2015-05-20 | 浙江农林大学 | Wood-burning boiler flue heat exchange and two-level smoke removing device |
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