CN205527783U - A ammonia recovery tower for in ammonium nitrate production facility - Google Patents
A ammonia recovery tower for in ammonium nitrate production facility Download PDFInfo
- Publication number
- CN205527783U CN205527783U CN201620256883.7U CN201620256883U CN205527783U CN 205527783 U CN205527783 U CN 205527783U CN 201620256883 U CN201620256883 U CN 201620256883U CN 205527783 U CN205527783 U CN 205527783U
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- China
- Prior art keywords
- tower body
- ammonia
- tower
- ammonium nitrate
- air stripping
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Abstract
The utility model discloses an ammonia recovery tower for in ammonium nitrate production facility, including the tower body, the tower body top is provided with including the export of ammonia combination cycle gas, and with waste liquid import, the export of air stripping liquid, the import of circulation ammonium nitrate solution with contain ammonia mixed gas inlet during the tower body that contains ammonia combination cycle gas export below has from top to bottom set gradually, the tower body bottom is provided with the export of ammonium nitrate solution, in the tower body including between export of ammonia combination cycle gas and the export of air stripping liquid, be provided with first air stripping filler section and second air stripping filler section, in the tower body between export of air stripping liquid and the import of circulation ammonium nitrate solution, circulating air defroster and wash tray have from top to bottom been set gradually, neutralization filler section is provided with in the import of circulation ammonium nitrate solution and in containing the tower body between the ammonia mixed gas inlet. The utility model discloses an ammonia recovery tower, in can effective recycling with the condensate in ammonia, zero release, non -staining environment, stability, the reliability of the operation of multiplicable system, energy saving and consumption reduction.
Description
Technical field
This utility model belongs to ammonium nitrate production device technique field, is specifically related to a kind of for ammonium nitrate production
Recovery ammonia tower in equipment.
Background technology
It is one of visual plant of ammonium nitrate production at ammonium nitrate recovery ammonia tower, in existing commercial production ammonium nitrate
In the neutralization condensed fluid existed, ammonia content is higher, it is impossible to recycle, and can will be neutralized by recovery ammonia tower
Ammonia in condensed fluid extracts so that neutralizes condensed fluid recoverable, or reaches discharge standard.
Existing ammonium nitrate recovery ammonia tower is that high temperature is about 180～185 DEG C, with pressure about 3.2～3.5bar (G)
High etching apparatus, operating condition is severe, and fluctuation of service, operating flexibility is little, and gas-liquid separation effect is poor, pole
Easily band liquid, the gas entering scrubbing tower is overheated gas, it is necessary to complete to neutralize washing after saturated in packed tower,
Neutralization gas carrying liquid is serious, and separation efficiency is low, and the ammonium nitrate content going out scrubbing tower is higher, neutralizes condensed fluid and does not has
Standby recovery value, maybe must can be only achieved zero-emission after carrying out after-treatment.
Existing ammonium nitrate recovery ammonia tower, only devises one section of neutralizing zone filler, and scrubbing tower natural separation is empty
Between, the ammonium nitrate content also exist that band liquid is serious, going out scrubbing tower is higher, neutralizes condensed fluid and does not possess recovery valency
The defect of value.
Utility model content
The purpose of this utility model is: problem present in the recovery ammonia tower for above-mentioned prior art, carries
For a kind of recovery ammonia tower in ammonium nitrate production equipment, it is possible to the ammonia in efficient recovery and in condensed fluid,
It is thorough that this ammonium nitrate recovery ammonia tower has air stripping, stable conditions, processes the water yield big, and effluent quality is secure,
Nitric acid, the ammonium nitrate plant consumption to Purified Water can be substantially reduced.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of recovery ammonia tower in ammonium nitrate production equipment, including tower body, described tower body top is arranged
Have and export containing ammonia mixing circulation gas, be from top to bottom disposed with containing the tower body below the outlet of ammonia mixing circulation gas
Neutralize waste liquid import, the outlet of air stripping liquid, circulation ammonium nitrate solution import and the mixed gas import Han ammonia, tower body
Bottom is provided with ammonium nitrate solution outlet；
Containing in the tower body between the outlet of ammonia mixing circulation gas and the outlet of air stripping liquid, from top to bottom it is disposed with
First air stripping packing section and the second air stripping packing section；Between the outlet of air stripping liquid and circulation ammonium nitrate solution import
Tower body in, be from top to bottom disposed with circulating air demister and wash tray；At circulation ammonium nitrate solution
Import and be provided with neutralization packing section containing in the tower body between ammonia mixed gas import；
It is provided with for isolating air stripping liquid in tower body between the described outlet of air stripping liquid and circulating air demister
Riser assembly with circulating air.
Preferably, in the tower body above the first described air stripping packing section, above the second air stripping packing section
Distributor all it is respectively arranged with in tower body and in neutralizing the tower body above packing section.
Preferably, described circulating air demister also includes flushing liquor import.
Preferably, described circulating air demister uses micron order separation assembly.
Preferably, described wash tray also includes flushing liquor outlet, flushing liquor refluxing opening and tower tray water supplement port.
Preferably, the bracing frame for supporting tower body it is provided with below described tower body.
Preferably, the described tower body below neutralization packing section is additionally provided with control detection mouth.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
1) arrange one section and neutralize filler and two sections of air stripping fillers, in bottom and filler be beneficial to containing ammonia mixed gas with
Nitric acid in cleaning mixture neutralizes, and scrubbing ammonia more fully and completely, increases because ammonia loss in reduction production process
Cost, reduces gas ammonia consumption.
2) the air stripping liquid after carrying because of ammonia can be as each additional soft wa ter of system, the water of decreasing water conservancy project section
Processing pressure, has saved cost, reaches chemical process zero emission requirement.
3) gas ammonia because stripping out generates again ammonium nitrate and returns system, thus further reduces ammonium nitrate
Production cost.
Accompanying drawing explanation
Fig. 1 is recovery ammonia tower structure schematic diagram of the present utility model.
Labelling in figure: 1-bracing frame, 2-mixed gas import Han ammonia, 10,9,3-distributor, 4-flushing liquor
Outlet, 5-wash tray, 6-flushing liquor refluxing opening, 7-tower body, 8-riser assembly, 11-mixing containing ammonia follows
Ring gas exports, with waste liquid import in 12-, and 13-the first air stripping packing section, 14-the second air stripping packing section, 15-
Air stripping liquid exports, and 16-circulating air demister, 17-flushing liquor import, 18-tower tray water supplement port, 19-circulates nitric acid
Ammonium salt solution import, in 20-and packing section, 21-controls detection mouth, and 22-ammonium nitrate solution exports.
Detailed description of the invention
With reference to Fig. 1, a kind of recovery ammonia tower in ammonium nitrate production equipment of the present utility model, including tower body
7, described tower body 7 top is provided with and exports 11 containing ammonia mixing circulation gas, exports 11 containing ammonia mixing circulation gas
The tower body 7 of lower section is from top to bottom disposed with neutralization waste liquid import 12, air stripping liquid outlet 15, circulation nitric acid
Ammonium salt solution import 19 and containing ammonia mixed gas import 2, is provided with ammonium nitrate solution outlet 22 bottom tower body 7.
It is connected with containing ammonia mixed gas import 2 by a cycling mechanism containing ammonia mixing circulation gas outlet 11.The present embodiment
Cycling mechanism can use blower fan, circulation can be sent back to tower the most afterwards containing ammonia gaseous mixture from tower top by blower fan
The end.
Containing in the tower body 7 between ammonia mixing circulation gas outlet 11 and air stripping liquid outlet 15, from top to bottom depend on
Secondary it is provided with the first air stripping packing section 13 and the second air stripping packing section 14；At air stripping liquid outlet 15 and circulation nitre
In tower body 7 between acid ammonium solution import 19, from top to bottom it is disposed with circulating air demister 16 and washes
Wash tower tray 5；Circulation ammonium nitrate solution import 19 and containing the tower body 7 between ammonia mixed gas import 2 in set
It is equipped with neutralization packing section 20.
In tower body 7 above the first described air stripping packing section 13, above the second air stripping packing section 14
Distributor 10,9,3 all it is respectively arranged with in tower body 7 and in neutralizing the tower body 7 above packing section 20.Logical
Cross and distributor 10,9,3 is set, neutralize condensed fluid and get final product uniform sprinkle the first air stripping packing section 13 He
In the air stripping filler of the second air stripping packing section 14, ammonium nitrate solution can neutralize packing section 20 by sprinkle uniformly
Neutralization filler in so that air stripping or neutralize reaction more uniform.
It is provided with for isolating air stripping liquid in tower body 7 between air stripping liquid outlet 15 and circulating air demister 16
Riser assembly 8 with circulating air.By riser assembly 8, thus recovery ammonia tower is divided into tower top
Stripping section and the neutralizing zone of tower bottom.By riser assembly 8 can by the neutralization condensed fluid above it with under
Side's isolation, riser assembly 8 does not allow leakage, only allows recyclegas below to pass through.
By arranging circulating air demister 16, it is possible to effectively prevent entrained drip in gas phase, circulating air demister
16 also include flushing liquor import 17.Circulating air demister 16 uses micron order separation assembly, and separating effect is more
Good.
Wash tray 5 also includes flushing liquor outlet 4, flushing liquor refluxing opening 6 and tower tray water supplement port 18.
The bracing frame 1 for supporting tower body 7 it is provided with below tower body 7.
Neutralize the tower body 7 below packing section 20 and be additionally provided with control detection mouth 21.
The condensed fluid that neutralizes after using in commercial production ammonium nitrate is entered by the neutralization waste liquid import 12 of recovery ammonia tower
Entering in tower body 7, neutralization condensed fluid is drenched by distributor 10 above the first air stripping packing section 13 uniformly
It is sprinkled upon on the filler of the first air stripping packing section 13, and during declining along filling surface, and comes up below
Circulation air inversion contacts, and the gas ammonia neutralized in condensed fluid is stripped out, and enters circulation gaseous mixture Han ammonia
In, discharging containing ammonia mixing circulation gas outlet 11 from tower body 7 top, the neutralization condensed fluid that air stripping has completed
Decline along filling surface, the distributor 9 in the second air stripping packing section 14 and the second air stripping packing section 14,
Thus form two-stage air stripping, eventually pass the neutralization condensed fluid of air stripping from air stripping liquid outlet 15 discharge.Through two
The condensed fluid that neutralizes after level air stripping can be as each additional soft wa ter of system, and the water of decreasing water conservancy project section processes
Pressure, has saved cost, reaches chemical process zero emission requirement.
From tower top out after containing ammonia mixing circulation gas through a Fans send back to bottom tower body 7 containing ammonia gaseous mixture
Body import 2, rises along neutralizing packing section 20 containing ammonia mixing circulation gas, and ammonia the most therein is filled out with neutralization
Nitric acid reaction in the ammonium nitrate solution declined in material section 20 generates ammonium nitrate, finally, through neutralize completely
The circulation air without ammonia continues to rise, and when wash tray 5, the ammonium nitrate solution carried secretly is dropped in this washing
Get off, cleaning mixture drop to circulation ammonium nitrate solution mix after finally reclaim.Circulation is passed through without ammonia air and is washed
The circulating air demister 16 constituted through a micron order except mist assembly after washing tower tray 5, micro-being finally still entrained with
Meter level ammonium nitrate drop separates, it is ensured that the air continuing to rise no longer is carried ammonium nitrate drop secretly and brought gas into
The section of carrying, and then pollute callable air stripping liquid, to reach except ammonia the mesh ground that reclaims.
22 are exported from ammonium nitrate solution after the ammonium nitrate neutralizing packing section 20 generation drops at the bottom of tower along filler
Discharge, then after the pressurization of ammonium nitrate circulating pump, adding nitric acid, the most again from circulation ammonium nitrate solution import 19
The circulation that neutralizes packing section 20 and adverse current and come is entered containing in ammonia air and generation ammonium nitrate after distributor 3,
And drop at the bottom of tower.After unnecessary ammonium nitrate extraction is stablized liquid level, again use ammonium nitrate circulating pump to pressurize,
Enter recovery tower after adding nitric acid and carry out the next ammonia process of washing that circulates, the most repeatedly, complete circulation empty containing ammonia
Ammonia is washed in the circulation of gas.
Circulation after washing ammonia continues to rise without ammonia air along tower, dividing through stripping section and neutralizing zone
At boundary, i.e. riser assembly 8, sequentially enter again after riser assembly 8 two-stage air stripping packing section with from upper
And the ammonia neutralized in condensed fluid got off again is stripped out and enters circulation and contains in ammonia air, circulation is containing ammonia
Air rises, until the most again entering neutralizing zone neutralization at the bottom of tower through blower fan pressurization from tower top to wash ammonia process.As
This iterative cycles neutralizes and washes ammonia process.
Claims (7)
1. the recovery ammonia tower in ammonium nitrate production equipment, including tower body (7), it is characterized in that, described tower body (7) top is provided with and exports (11) containing ammonia mixing circulation gas, the tower body (7) of the outlet containing ammonia mixing circulation gas (11) lower section is from top to bottom disposed with neutralization waste liquid import (12), air stripping liquid outlet (15), circulation ammonium nitrate solution import (19) and the mixed gas import Han ammonia (2), and tower body (7) bottom is provided with ammonium nitrate solution outlet (22)；
In tower body (7) between the outlet containing ammonia mixing circulation gas (11) and air stripping liquid outlet (15), from top to bottom it is disposed with the first air stripping packing section (13) and the second air stripping packing section (14)；In tower body (7) between air stripping liquid outlet (15) and circulation ammonium nitrate solution import (19), from top to bottom it is disposed with circulating air demister (16) and wash tray (5)；Neutralization packing section (20) it is provided with in tower body (7) between circulation ammonium nitrate solution import (19) and the mixed gas import containing ammonia (2)；
It is provided with the riser assembly (8) for isolating air stripping liquid and circulating air in tower body (7) between described air stripping liquid outlet (15) and circulating air demister (16).
Recovery ammonia tower the most according to claim 1, it is characterized in that, in the tower body (7) in the tower body (7) of the first described air stripping packing section (13) top, above the second air stripping packing section (14) and in neutralizing the tower body (7) above packing section (20), be all respectively arranged with distributor (10,9,3).
Recovery ammonia tower the most according to claim 1, it is characterised in that described circulating air demister (16) also includes flushing liquor import (17).
Recovery ammonia tower the most according to claim 1, it is characterised in that described circulating air demister (16) uses micron order separation assembly.
Recovery ammonia tower the most according to claim 1, it is characterised in that described wash tray (5) also includes flushing liquor outlet (4), flushing liquor refluxing opening (6) and tower tray water supplement port (18).
Recovery ammonia tower the most according to claim 1, it is characterised in that described tower body (7) lower section is provided with the bracing frame (1) for supporting tower body (7).
Recovery ammonia tower the most according to claim 1, it is characterised in that the tower body (7) of described neutralization packing section (20) lower section is additionally provided with control detection mouth (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256883.7U CN205527783U (en) | 2016-03-30 | 2016-03-30 | A ammonia recovery tower for in ammonium nitrate production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256883.7U CN205527783U (en) | 2016-03-30 | 2016-03-30 | A ammonia recovery tower for in ammonium nitrate production facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205527783U true CN205527783U (en) | 2016-08-31 |
Family
ID=56785750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256883.7U Withdrawn - After Issue CN205527783U (en) | 2016-03-30 | 2016-03-30 | A ammonia recovery tower for in ammonium nitrate production facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205527783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082273A (en) * | 2016-03-30 | 2016-11-09 | 四川金象赛瑞化工股份有限公司 | A kind of recovery ammonia tower in ammonium nitrate production equipment |
-
2016
- 2016-03-30 CN CN201620256883.7U patent/CN205527783U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082273A (en) * | 2016-03-30 | 2016-11-09 | 四川金象赛瑞化工股份有限公司 | A kind of recovery ammonia tower in ammonium nitrate production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20180724 |