CN202089771U - Comprehensive utilization device for neutralization tail gas waste heat - Google Patents
Comprehensive utilization device for neutralization tail gas waste heat Download PDFInfo
- Publication number
- CN202089771U CN202089771U CN2011200662969U CN201120066296U CN202089771U CN 202089771 U CN202089771 U CN 202089771U CN 2011200662969 U CN2011200662969 U CN 2011200662969U CN 201120066296 U CN201120066296 U CN 201120066296U CN 202089771 U CN202089771 U CN 202089771U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- phosphoric acid
- liquefied ammonia
- well heater
- acid well
- 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.)
- Expired - Fee Related
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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 utility model discloses a comprehensive utilization device for neutralization tail gas waste heat, which comprises a phosphoric acid heater and a liquid ammonia evaporator. A neutralization tail gas outlet of a neutralization tank is connected with a neutralization tail gas pipeline a which is divided into a neutralization tail gas pipeline b and a neutralization tail gas pipeline c. The neutralization tail gas pipeline b is connected with a hot fluid inlet of the phosphoric acid heater, and the neutralization tail gas pipeline c is connected with a hot fluid inlet of the liquid ammonia evaporator. The comprehensive utilization device which utilizes the neutralization tail gas waste heat can not only improve the temperature of phosphoric acid and evaporates liquid ammonia, but also reduce the neutralization tail gas discharge quantity, reduces electricity consumption of a draught fan, and reduces production cost.
Description
Technical field
The utility model relate to a kind of in and the using waste heat from tail gas comprehensive utilization device, be used for production processes such as monoammonium phosphate, diammonium phosphate, spray granulating composite fertilizer.
Background technology
In production processes such as composite fertilizer, phosphoric acid heats up and liquefied ammonia evaporation institute heat requirement all is to provide by steam (heating) at present, and the quantity of steam of consumption is big, the production cost height.Opposite temperature reaches in 100 ℃ the composite fertilizer and tail gas directly is discharged in the atmosphere, not only causes a large amount of thermal waste, and destroys environment.
Summary of the invention
The purpose of this utility model is to address the above problem, provide a kind of in and the using waste heat from tail gas comprehensive utilization device, during its utilizes and using waste heat from tail gas can not only improve phosphoric acid temperature and evaporation liquefied ammonia, and in reducing and the exhaust emissions amount, reduce the power consumption of induced draft fan, reduce production costs.
The purpose of this utility model be achieved in that a kind of in and the using waste heat from tail gas comprehensive utilization device, comprise phosphoric acid well heater and liquefied ammonia vaporizer, the phosphoric acid well heater comprises the import of phosphoric acid well heater hot-fluid, the outlet of phosphoric acid well heater hot-fluid, the import of phosphoric acid well heater cold fluid, the outlet of phosphoric acid well heater cold fluid and phosphoric acid well heater condensation-water drain, and phosphoric acid well heater condensation-water drain is connected with condensing water conduit a; The liquefied ammonia vaporizer comprises the import of liquefied ammonia vaporizer hot-fluid, the outlet of liquefied ammonia vaporizer hot-fluid, the import of liquefied ammonia vaporizer cold fluid, the outlet of liquefied ammonia vaporizer cold fluid and liquefied ammonia evaporator condensation water out, liquefied ammonia evaporator condensation water out is connected with condensing water conduit b, it is characterized in that: in the neutralizing well with tail gas outlet with in be connected with exhaust pipe a, in and exhaust pipe a be split in and exhaust pipe b and in and exhaust pipe c, in be connected with the import of phosphoric acid well heater hot-fluid with exhaust pipe b, in be connected with the import of liquefied ammonia vaporizer hot-fluid with exhaust pipe c.
Described condensing water conduit a and condensing water conduit b merge into condensing water conduit c, and condensing water conduit c connects pond for recovering.
Advantage of the present utility model is: in 1, utilizing and the waste heat of tail gas improve phosphoric acid temperature and evaporation liquefied ammonia, broken through the tradition of utilizing steam heating phosphoric acid and evaporation liquefied ammonia; 2, utilize in and the waste heat of tail gas improve phosphoric acid temperature and evaporation liquefied ammonia, stably manufactured reduces steam consumption, saves production cost; 3, reduce exhaust emissions, reduce the induced draft fan power consumption; 4, reduce be discharged in the atmosphere in and exhaust temperature and quantity discharged, help protecting environment.
Description of drawings
Fig. 1 is in the utility model and the device synoptic diagram of using waste heat from tail gas comprehensive utilization device.
Number in the figure explanation: 1 neutralizing well, export with tail gas in 2, in 3 and exhaust pipe a, in 4 and exhaust pipe b, 5 phosphoric acid well heater hot-fluid imports, 6 phosphoric acid well heaters, the outlet of 7 phosphoric acid well heater cold fluids, the outlet of 8 phosphoric acid well heater hot-fluids, 9 condensing water conduit a, 10 phosphoric acid well heater condensation-water drains, the outlet of 11 liquefied ammonia vaporizer hot-fluids, 12 liquefied ammonia evaporator condensation water outs, 13 condensing water conduit c, 14 condensing water conduit b, 15 liquefied ammonia vaporizers, 16 liquefied ammonia vaporizer cold fluid imports, in 17 and exhaust pipe c, 18 liquefied ammonia vaporizer hot-fluid imports, the outlet of 19 liquefied ammonia vaporizer cold fluids, 20 phosphoric acid well heater cold fluid imports.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
As shown in Figure 1, in a kind of and the using waste heat from tail gas comprehensive utilization device, comprise phosphoric acid well heater 6 and liquefied ammonia vaporizer 15, phosphoric acid well heater 6 comprises phosphoric acid well heater hot-fluid import 5, phosphoric acid well heater hot-fluid outlet 8, phosphoric acid well heater cold fluid import 20, the outlet 7 of phosphoric acid well heater cold fluid and phosphoric acid well heater condensation-water drain 10, and phosphoric acid well heater condensation-water drain 10 is connected with condensing water conduit a 9; Liquefied ammonia vaporizer 15 comprises liquefied ammonia vaporizer hot-fluid import 18, liquefied ammonia vaporizer hot-fluid outlet 11, liquefied ammonia vaporizer cold fluid import 16, outlet 19 of liquefied ammonia vaporizer cold fluid and liquefied ammonia evaporator condensation water out 12, liquefied ammonia evaporator condensation water out 12 is connected with condensing water conduit b 14, in the neutralizing well 1 with tail gas outlet 2 with in be connected with exhaust pipe a 3, in and exhaust pipe a 3 be split in and exhaust pipe b 4 and in and exhaust pipe c 17, in be connected with phosphoric acid well heater hot-fluid import 5 with exhaust pipe b 4, in be connected with liquefied ammonia vaporizer hot-fluid import 18 with exhaust pipe c 17.Described condensing water conduit a 9 and condensing water conduit b14 merge into condensing water conduit c 13, and condensing water conduit c 13 connects pond for recovering.
The present embodiment working process is as follows: in during phosphoric acid well heater hot-fluid import 5 feeds and among the pipeline b 4 and tail gas, phosphoric acid well heater cold fluid import 20 feeds the low temperature phosphoric acid solution, in and tail gas walk shell side, the low temperature phosphoric acid solution is walked tube side, both carry out indirect heat exchange, phosphoric acid solution after the heat exchange by pipe-line transportation to subsequent processing, in after the heat exchange and tail gas discharge via phosphoric acid well heater hot-fluid outlet 8 in and outside the using waste heat from tail gas comprehensive utilization device, after the heat exchange in and the tail gas water of condensation be connected to condensing water conduit c 13 by condensing water conduit a 9; During liquefied ammonia vaporizer hot-fluid import 18 feeds and among the pipeline c 17 and tail gas, liquefied ammonia vaporizer cold fluid import 16 feeds liquefied ammonia, in and tail gas walk tube side, liquefied ammonia is walked shell side, both carry out indirect heat exchange, liquefied ammonia after the heat exchange flashes to gas ammonia, gas ammonia by pipe-line transportation to subsequent processing, export in 11 discharges and outside the using waste heat from tail gas comprehensive utilization device via liquefied ammonia vaporizer hot-fluid with tail gas in after the heat exchange, in after the heat exchange and the tail gas water of condensation by condensing water conduit b 14 be connected to condensing water conduit c 13, condensing water conduit c 13 connects pond for recoverings.
Claims (2)
1. in and the using waste heat from tail gas comprehensive utilization device, comprise phosphoric acid well heater (6) and liquefied ammonia vaporizer (15), phosphoric acid well heater (6) comprises phosphoric acid well heater hot-fluid import (5), the outlet of phosphoric acid well heater hot-fluid (8), phosphoric acid well heater cold fluid import (20), the outlet of phosphoric acid well heater cold fluid (7) and phosphoric acid well heater condensation-water drain (10), and phosphoric acid well heater condensation-water drain (10) is connected with condensing water conduit a (9); Liquefied ammonia vaporizer (15) comprises liquefied ammonia vaporizer hot-fluid import (18), liquefied ammonia vaporizer hot-fluid outlet (11), liquefied ammonia vaporizer cold fluid import (16), the outlet of liquefied ammonia vaporizer cold fluid (19) and liquefied ammonia evaporator condensation water out (12), liquefied ammonia evaporator condensation water out (12) is connected with condensing water conduit b (14), it is characterized in that: in the neutralizing well (1) with tail gas outlet (2) with in be connected with exhaust pipe a (3), in and exhaust pipe a (3) be split in and exhaust pipe b (4) and in exhaust pipe c (17), in be connected with phosphoric acid well heater hot-fluid import (5) with exhaust pipe b (4), in be connected with liquefied ammonia vaporizer hot-fluid import (18) with exhaust pipe c (17).
According to claim 1 described in and the using waste heat from tail gas comprehensive utilization device, it is characterized in that: described condensing water conduit a (9) and condensing water conduit b (14) merge into condensing water conduit c (13), condensing water conduit c (13) connects pond for recovering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200662969U CN202089771U (en) | 2011-03-15 | 2011-03-15 | Comprehensive utilization device for neutralization tail gas waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200662969U CN202089771U (en) | 2011-03-15 | 2011-03-15 | Comprehensive utilization device for neutralization tail gas waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202089771U true CN202089771U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200662969U Expired - Fee Related CN202089771U (en) | 2011-03-15 | 2011-03-15 | Comprehensive utilization device for neutralization tail gas waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202089771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102184A (en) * | 2012-10-31 | 2013-05-15 | 湖北新洋丰肥业股份有限公司 | Method for utilizing cold energy of circulating water of ammonia evaporator |
| CN103663398A (en) * | 2013-11-29 | 2014-03-26 | 安徽六国化工股份有限公司 | Method and device for utilizing heat energy of diammonium phosphate neutralization tail gas |
| CN104492105A (en) * | 2014-12-08 | 2015-04-08 | 广西鹿寨化肥有限责任公司 | Method for evaporating liquid ammonia by virtue of waste heat of tail gas from granulation of diammonium phosphate |
-
2011
- 2011-03-15 CN CN2011200662969U patent/CN202089771U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102184A (en) * | 2012-10-31 | 2013-05-15 | 湖北新洋丰肥业股份有限公司 | Method for utilizing cold energy of circulating water of ammonia evaporator |
| CN103102184B (en) * | 2012-10-31 | 2014-04-23 | 湖北新洋丰肥业股份有限公司 | Method for utilizing cold energy of circulating water of ammonia evaporator |
| CN103663398A (en) * | 2013-11-29 | 2014-03-26 | 安徽六国化工股份有限公司 | Method and device for utilizing heat energy of diammonium phosphate neutralization tail gas |
| CN103663398B (en) * | 2013-11-29 | 2015-07-15 | 安徽六国化工股份有限公司 | Method and device for utilizing heat energy of diammonium phosphate neutralization tail gas |
| CN104492105A (en) * | 2014-12-08 | 2015-04-08 | 广西鹿寨化肥有限责任公司 | Method for evaporating liquid ammonia by virtue of waste heat of tail gas from granulation of diammonium phosphate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |