CN2557198Y - Forced circulation aminating evaporation reactor - Google Patents
Forced circulation aminating evaporation reactor Download PDFInfo
- Publication number
- CN2557198Y CN2557198Y CN 02275691 CN02275691U CN2557198Y CN 2557198 Y CN2557198 Y CN 2557198Y CN 02275691 CN02275691 CN 02275691 CN 02275691 U CN02275691 U CN 02275691U CN 2557198 Y CN2557198 Y CN 2557198Y
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- Prior art keywords
- forced circulation
- flash chamber
- comer
- nozzle
- ammonification
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- Expired - Fee Related
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Abstract
The utility model provides a forced circulating amination vaporization reactor, consisting of a flash chamber, a downcorner, a forced circulation pump and a reaction pipe which are connected in series in order to form a cirque enclosed structure system. An ammonia nozzle arranged on the reaction pipe mainly consists of a connecting pipe and a nozzle connected with one end of the connecting pipe; the nozzle is the assembly of a conical tube and a sphere with spraying holes; the combination solid is in a spherical sector shape. The cone angle of the conical tube is ranging from 55 DEG to 65 DEG; the spraying holes on the sphere are arranged in cirque shape. Because the amination reactor is provided with a forced circulation pump and the ammonia nozzle is improved, the car starting and parking are convenient; the pipeline is not easy to form scale; no vibration and low noise exist in operation, and the neutralization reaction is more complete.
Description
One, technical field
The utility model belongs to phosphoric acid ammonification device, particularly a kind of external circulation ammoniation reactor.
Two, background technology
External circulation ammoniation reactor is generally assembled by vapor seperator (flash chamber), reaction tube (tedge) and circulation pipe (down-comer) series connection, utilizes the density official post material of material in reaction tube and the circulation pipe to circulate.Advantage is that equipment volume is little, floor space is few, reduced investment, energy consumption are low, easy and simple to handle, helps environmental protection.Weak point is: in case 1 phosphoric acid and gas ammonia stop to supply with, neutralization reaction is stagnated; slip will remain static because of reactionless heat loses motive force; if this situation occurs, the suspension crystal grain in the slip can deposit, and stops up reaction tube and circulation pipe; for avoiding stopping up; after surpassing 2 hours down time, slip must be put into standby stirring-type holder, when driving, squeeze in the reactor again with pump again; so not only increase operational sequence and equipment, and influenced driving rate.2, moment in reactor is finished reaction and local strong turbulence mixing owing to phosphoric acid and gas ammonia, thereby cause the part to cross ammonification, the slip crystal of Sheng Chenging is less in such cases, viscosity increases, flowability is poor, is unfavorable for the further processing of concentration process, and easily causes the ammonia spray nozzle clogging.3, because the reaction speed of phosphoric acid and gas ammonia is fast, cause in the phosphoric acid impurities when neutralization reaction, to fail to separate out fully, thereby follow-up heating easy fouling of pipeline when concentrating, reduce heat transfer coefficient and also result in blockage, influence the normal operation of whole phosphorus ammonium production line.4, because the gentle ammonia react of phosphoric acid is violent, cause the local turbulence of equipment, both produced the thorn ear noise, service life of equipment is shortened.Chinese patent ZL97207566.6 discloses a kind of external circulation ammoniation reactor, mainly, do not have the defective that external circulation ammoniation reactor exists now but fundamentally solve by improving the performance that gas ammonia structure of nozzle and the mounting means on reaction tube improve reactor.
Three, summary of the invention
The deficiency that the utility model exists at prior art, a kind of start-stop car is convenient, pipeline is less scaling, shockproof, the ammonification ER device of the little long-time running of noise but provide.
The technical solution of the utility model is: increase forced circulation pump on the basis of existing external circulation ammoniation reactor, increase new motive force for the circulation of material, so that fundamentally improve the performance of reactor.This kind reactor comprises flash chamber, down-comer, forced circulation pump, reaction tube, gas ammonia nozzle, and the gas ammonia nozzle is installed on the reaction tube, and flash chamber, down-comer, forced circulation pump, reaction tube are connected in series, and forms annular enclosed type structural system; This annular enclosed type structural system be provided with phosphoric acid inlet, in and slurry outlet and steam (vapor) outlet, steam (vapor) outlet is positioned at the flash chamber top, phosphoric acid inlet can be opened on flash chamber or the down-comer, in and slurry outlet can be opened on flash chamber or down-comer or the reaction tube.
For fear of the gas ammonia spray nozzle clogging, guarantee that neutralization reaction is more complete, the utility model also improves the gas ammonia nozzle.Gas ammonia nozzle in the utility model mainly is made up of the shower nozzle of taking over being connected with adapter one end, and shower nozzle is the assembly of conical tube and band spray orifice sphere, and it is fan-shaped that this assembly is ball, during connection, and the dead in line of conical tube and adapter.In order to make spray ammonia better effects if, the cone angle of conical tube should be controlled at 55 °～65 °, and the spray orifice on the sphere preferably is circular arrangement and distributes.
The utlity model has following beneficial effect:
1, owing to disposed forced circulation pump, if interrupt phosphoric acid and ammonia supply, stop neutralization reaction, slip still circulates under the driving of circulating pump, can not deposit blocking pipe, thereby can add phosphoric acid at any time and ammonia resumes production, make things convenient for the production management of start-stop car and package unit, also saved standby stirring-type holder simultaneously, simplified operational sequence.
2, initiate phosphoric acid and ammonia are under the driving of forced circulation pump, and rapid and slip mixes, and makes that the neutralization reaction of phosphoric acid and ammonia is milder, the phosphorus ammonium crystal that generates is thick, slip viscosity is little, has avoided pipeline scale, and provides advantage for follow-up enrichment process.
3, slip is under the promotion of circulating pump, and even and ammonia react can not produce local turbulence, thereby stable equipment operation, and noise reduces, and prolong service life.
4, obstruction has not only been avoided in the improvement of gas ammonia nozzle, and helps ammonia and mix with the even of slip, makes neutralization reaction more complete.
Four, description of drawings
Fig. 1 is a kind of structure chart of the forced circulation ammonification ER device that proposes of the utility model;
Fig. 2 is a kind of structure chart of gas ammonia nozzle;
Fig. 3 is a kind of arranged distribution figure of spray orifice on sphere.
Among the figure, 1. flash chamber, 2. down-comer, 3. forced circulation pump, 4. in and slurry outlet, 5. the gas ammonia nozzle, 6. reaction tube, 7. phosphoric acid inlet, 8. steam (vapor) outlet, 9. take over, 10. conical tube, 11. spheres, 12. blind flanges, 13. flanges, 14. spray orifices.
Five, the specific embodiment
The structure of the forced circulation ammonification ER device in the present embodiment as shown in Figure 1, flash chamber 1, down-comer 2, forced circulation pump 3, reaction tube 6 are connected in series, and form annular enclosed type structural system.Flash chamber 1, down-comer 2 and reaction tube 6 roll, are welded by the 316L corrosion resistant plate, and forced circulation pump 3 is selected axial-flow pump for use.The flash chamber top is provided with steam (vapor) outlet 8, and the flash chamber upper portion side wall is provided with phosphoric acid inlet 7; Four gas ammonia nozzles 5 are housed on the reaction tube and be provided with in and slurry outlet 4, slurry outlet 4 has the function of blowdown concurrently; The structure of gas ammonia nozzle 5 such as Fig. 2, shown in Figure 3, form by taking over 9, be welded on the shower nozzle of taking over an end and be welded on blind flange 12, the flange 13 of taking over the other end, shower nozzle is the assembly of conical tube 10 and band spray orifice sphere 11, during welding, should guarantee the dead in line of conical tube and adapter.The taper angle theta of conical tube 10 is 60 °, and spray orifice 14 is circular arrangement and distributes on sphere 11.
Claims (6)
1, a kind of forced circulation ammonification ER device, comprise flash chamber (1), down-comer (2), gas ammonia nozzle (5), reaction tube (6), the gas ammonia nozzle is installed on the reaction tube, flash chamber, down-comer, reaction tube are connected in series, form annular enclosed type structural system, this annular enclosed type structural system be provided with phosphoric acid inlet (7), in and slurry outlet (4) and steam (vapor) outlet (8), it is characterized in that also being in series with in this annular enclosed type structural system forced circulation pump (3), one end of forced circulation pump is connected with down-comer, and the other end is connected with reaction tube.
2, forced circulation ammonification ER device according to claim 1, it is characterized in that gas ammonia nozzle (5) mainly by take over (9) with take over the shower nozzle that an end is connected and form, shower nozzle is the assembly of conical tube (10) and band spray orifice sphere (11), it is fan-shaped that this assembly is ball, during connection, the dead in line of circular cone Taper Pipe and adapter.
3, forced circulation ammonification ER device according to claim 2, the cone angle that it is characterized in that constituting the conical tube (10) of shower nozzle is 55 °～65 °.
4,, it is characterized in that the spray orifice (14) on the sphere (1 1) is the circular arrangement distribution according to claim 2 or 3 described forced circulation ammonification ER devices.
5, according to claim 1 or 2 or 3 described forced circulation ammonification ER devices, it is characterized in that steam (vapor) outlet (8) is opened in flash chamber (1) top, phosphoric acid inlet (7) is opened on flash chamber (1) or the down-comer (2), in and slurry outlet (4) be opened on flash chamber (1) or down-comer (2) or the reaction tube (6).
6, forced circulation ammonification ER device according to claim 4, it is characterized in that steam (vapor) outlet (8) is opened in flash chamber (1) top, phosphoric acid inlet (7) is opened on flash chamber (1) or the down-comer (2), in and slurry outlet (4) be opened on flash chamber (1) or down-comer (2) or the reaction tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275691 CN2557198Y (en) | 2002-07-12 | 2002-07-12 | Forced circulation aminating evaporation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275691 CN2557198Y (en) | 2002-07-12 | 2002-07-12 | Forced circulation aminating evaporation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2557198Y true CN2557198Y (en) | 2003-06-25 |
Family
ID=33739687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02275691 Expired - Fee Related CN2557198Y (en) | 2002-07-12 | 2002-07-12 | Forced circulation aminating evaporation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2557198Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371238C (en) * | 2006-06-16 | 2008-02-27 | 四川川大中德环保技术有限公司 | Method for producing diammonium phosphate by concentrating acid slime, and secondary ammoniation reactor |
| CN102731191A (en) * | 2012-07-04 | 2012-10-17 | 太原理工大学 | Neutralization process for ammonia in a mother liquor used for producing nitric acid phosphate fertilizer |
| CN112604624A (en) * | 2020-11-16 | 2021-04-06 | 湖北第二师范学院 | External circulation ammonification reaction experimental equipment and method for analyzing factors influencing external circulation ammonification reaction by using same |
-
2002
- 2002-07-12 CN CN 02275691 patent/CN2557198Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371238C (en) * | 2006-06-16 | 2008-02-27 | 四川川大中德环保技术有限公司 | Method for producing diammonium phosphate by concentrating acid slime, and secondary ammoniation reactor |
| CN102731191A (en) * | 2012-07-04 | 2012-10-17 | 太原理工大学 | Neutralization process for ammonia in a mother liquor used for producing nitric acid phosphate fertilizer |
| CN102731191B (en) * | 2012-07-04 | 2014-07-16 | 太原理工大学 | Neutralization process for ammonia in a mother liquor used for producing nitric acid phosphate fertilizer |
| CN112604624A (en) * | 2020-11-16 | 2021-04-06 | 湖北第二师范学院 | External circulation ammonification reaction experimental equipment and method for analyzing factors influencing external circulation ammonification reaction by using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |