CN104214787A - Surplus heat utilization method for boil tail gas - Google Patents
Surplus heat utilization method for boil tail gas Download PDFInfo
- Publication number
- CN104214787A CN104214787A CN201410418265.3A CN201410418265A CN104214787A CN 104214787 A CN104214787 A CN 104214787A CN 201410418265 A CN201410418265 A CN 201410418265A CN 104214787 A CN104214787 A CN 104214787A
- Authority
- CN
- China
- Prior art keywords
- tail gas
- scrubbing tower
- heat
- boiler
- dust removal
- 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
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a surplus heat utilization method for boiler tail gas. A bag-type dust collector is adopted to collect boiler tail gas; after dust collection, part of tail gas is fed to a powder spray tower to serve as a drying heat source, and the other part of tail gas is sequentially subjected to gravitational dust collection in three levels of dust chambers, and the other part of tail gas is fed to a scrubbing tower; the tail gas is then subjected to wet dust collection by using scrubbing solution and heat exchange in the scrubbing tower; the tail gas after wet dust collection is discharged to exterior from the scrubbing tower; the scrubbing solution after heat exchange in the scrubbing tower returns to the ammonium phosphate procedure to supply heat energy. According to the surplus heat utilization method for boiler tail gas, the surplus heat of the boiler tail gas can be utilized, the surplus heat is utilized to the greatest extent, and the energy consumption of the ammonium phosphate products is reduced.
Description
Technical field
The present invention relates to boiler exhaust gas processing method field, mainly a kind of waste heat of boiler tail gas Application way.
Background technology
cFBB tail gas air quantity 85000m
3/ h, temperature 140 DEG C, current boiler exhaust gas is by after sack cleaner dedusting, and emptying by diameter 1.4 meters, high 45 meters of chimneys, heat does not utilize, and causes waste.
summary of the inventiontechnical problem to be solved by this invention is to provide a kind of waste heat of boiler tail gas Application way, it utilizes waste heat of boiler tail gas, at utmost utilize rich heat, reduce ammonium phosphate product energy consumption, solve the problem that in prior art, recirculating fluidized bed tail gas heat quantity does not make full use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of waste heat of boiler tail gas Application way, it is characterized in that: adopt sack cleaner to collect boiler exhaust gas, boiler exhaust gas is in sack cleaner after dedusting, part tail gas sends into spray tower as drying source by blower fan, another part tail gas sends into primary dust removing room successively, two-stage dust removal room, tertiary dust removal chamber, through primary dust removing room, send in scrubbing tower after two-stage dust removal room and tertiary dust removal chamber gravitational dust collection, in scrubbing tower, adopt cleaning solution to tail gas wet method dedusting, simultaneously in tail gas exchange heat to cleaning solution, tail gas after wet dedusting is disposed to outside from scrubbing tower, cleaning solution in scrubbing tower after exchange heat returns phosphorus ammonium operation and provides heat energy.
Advantage of the present invention is:
Method of the present invention can utilize waste heat of boiler tail gas, at utmost utilizes rich heat, reduces ammonium phosphate product energy consumption.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Detailed description of the invention
See Fig. 1, a kind of waste heat of boiler tail gas Application way, sack cleaner is adopted to collect boiler exhaust gas, boiler exhaust gas is in sack cleaner after dedusting, part tail gas sends into spray tower as drying source by blower fan, another part tail gas sends into primary dust removing room successively, two-stage dust removal room, tertiary dust removal chamber, through primary dust removing room, send in scrubbing tower after two-stage dust removal room and tertiary dust removal chamber gravitational dust collection, in scrubbing tower, adopt cleaning solution to tail gas wet method dedusting, simultaneously in tail gas exchange heat to cleaning solution, tail gas after wet dedusting is disposed to outside from scrubbing tower, cleaning solution in scrubbing tower after exchange heat returns phosphorus ammonium operation and provides heat energy.
Claims (1)
1. a waste heat of boiler tail gas Application way, it is characterized in that: adopt sack cleaner to collect boiler exhaust gas, boiler exhaust gas is in sack cleaner after dedusting, part tail gas sends into spray tower as drying source by blower fan, another part tail gas sends into primary dust removing room successively, two-stage dust removal room, tertiary dust removal chamber, through primary dust removing room, send in scrubbing tower after two-stage dust removal room and tertiary dust removal chamber gravitational dust collection, in scrubbing tower, adopt cleaning solution to tail gas wet method dedusting, simultaneously in tail gas exchange heat to cleaning solution, tail gas after wet dedusting is disposed to outside from scrubbing tower, cleaning solution in scrubbing tower after exchange heat returns phosphorus ammonium operation and provides heat energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418265.3A CN104214787A (en) | 2014-08-22 | 2014-08-22 | Surplus heat utilization method for boil tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418265.3A CN104214787A (en) | 2014-08-22 | 2014-08-22 | Surplus heat utilization method for boil tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214787A true CN104214787A (en) | 2014-12-17 |
Family
ID=52096547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410418265.3A Pending CN104214787A (en) | 2014-08-22 | 2014-08-22 | Surplus heat utilization method for boil tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214787A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753225A (en) * | 1980-09-17 | 1982-03-30 | Electric Power Dev Co Ltd | Treatment of coal ash |
| CN101869800A (en) * | 2009-04-24 | 2010-10-27 | 刘闽男 | Method and system for purifying flue gas generated by incinerating waste materials |
| CN202598566U (en) * | 2012-06-09 | 2012-12-12 | 珠海市斗门福联造型材料实业有限公司 | Boiler flue gas processing device |
| CN203295202U (en) * | 2013-07-22 | 2013-11-20 | 湖北宜化松滋肥业有限公司 | Diammonium phosphate tail gas scrubbing system |
| CN203549872U (en) * | 2013-10-10 | 2014-04-16 | 陈永章 | Recovering and purifying device for dust removal waste heat of boiler |
-
2014
- 2014-08-22 CN CN201410418265.3A patent/CN104214787A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753225A (en) * | 1980-09-17 | 1982-03-30 | Electric Power Dev Co Ltd | Treatment of coal ash |
| CN101869800A (en) * | 2009-04-24 | 2010-10-27 | 刘闽男 | Method and system for purifying flue gas generated by incinerating waste materials |
| CN202598566U (en) * | 2012-06-09 | 2012-12-12 | 珠海市斗门福联造型材料实业有限公司 | Boiler flue gas processing device |
| CN203295202U (en) * | 2013-07-22 | 2013-11-20 | 湖北宜化松滋肥业有限公司 | Diammonium phosphate tail gas scrubbing system |
| CN203549872U (en) * | 2013-10-10 | 2014-04-16 | 陈永章 | Recovering and purifying device for dust removal waste heat of boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |
|
| RJ01 | Rejection of invention patent application after publication |