CN105126574A - Evaporation system and evaporation process for removing ammonia and recycling ammonium salt through vapor washing with evaporator - Google Patents
Evaporation system and evaporation process for removing ammonia and recycling ammonium salt through vapor washing with evaporator Download PDFInfo
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- CN105126574A CN105126574A CN201510444697.6A CN201510444697A CN105126574A CN 105126574 A CN105126574 A CN 105126574A CN 201510444697 A CN201510444697 A CN 201510444697A CN 105126574 A CN105126574 A CN 105126574A
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- ammonia
- evaporimeter
- ammonium salt
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- acid solution
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an evaporation system and an evaporation process for removing ammonia and recycling ammonium salts through vapor washing with an evaporator. The system includes the evaporator in which a heat exchange tube is disposed. An ammonia removal device, which can absorb the ammonia from vapor in the evaporator, is disposed on the upper end of the evaporator. The evaporation process comprises the steps of: 1) starting a metering pump to pump acid liquid to an acid pickling system to enable ammonia-containing vapor in the evaporator to be reacted with the acid liquid; 2) with a demister, taking away the acid liquid or mist carried by the vapor; 3) recycling ammonium-containing hydrochloric acid liquid from an acid receiving trough which is generated in the step 1) and is overflown out and dropped from a liquid distribution disk, and feeding the ammonium-containing hydrochloric acid liquid to an acid liquid storage tank; and 4) adding an ammonia absorption medicine liquid to the acid liquid storage tank to convert the ammonia into ammonium salts. The evaporation system and the evaporation process overcome the defect in the prior art. The invention provides the evaporation system and an evaporation process for removing the ammonia and recycling the ammonium salt through vapor washing with the evaporator, wherein the system is simple in structure and the system and the method can effectively remove the ammonia and recycle the ammonium salt from waste water.
Description
Technical field
The present invention relates to a kind of evaporimeter steaming except ammonia and ammonium salt reclamation vapo(u)rization system; The invention still further relates to a kind of said system that adopts to carry out except ammonia and ammonium salt reclamation technique.
Background technology
At present containing high ammonia-nitrogen wastewater, than percolate, containing ammonium pharmacy waste water and industrial high ammonia-nitrogen wastewater etc., in evaporation process, in its gained distilled water, ammonia-nitrogen content often exceeds standard, and affects reuse or the qualified discharge of distilled water.Existing treatment system structure relative complex, and after process, the content of ammonia is relatively high, and also the ammonium salt produced can not be recycled, and causes the waste of resource.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, providing a kind of structure simple, effectively can remove the ammonia in waste water and effectively reclaim the evaporimeter steaming of ammonium salt except ammonia and ammonium salt reclamation vapo(u)rization system;
Another object of the present invention is to provide a kind of said system that adopts and carries out except ammonia and ammonium salt reclamation technique.
In order to achieve the above object, the present invention adopts following scheme:
A kind of evaporimeter steaming, except ammonia and ammonium salt reclamation vapo(u)rization system, is characterized in that: include evaporimeter, in evaporimeter, is provided with heat exchanger tube, is provided with the ammonia removal device that can absorb contained ammonia in steam in evaporimeter in described evaporimeter upper end.
A kind of evaporimeter steaming as above is except ammonia and ammonium salt reclamation vapo(u)rization system, it is characterized in that described ammonia removal device includes gas skirt, in described gas skirt, be provided with pickling system, above described pickling system, be provided with the acid solution of steam entrained with after removing pickling or the demister of mist.
A kind of evaporimeter steaming as above, except ammonia and ammonium salt reclamation vapo(u)rization system, is characterized in that described pickling system includes cloth acid dish, described cloth acid dish is provided with acid solution spray thrower, is provided with and connects acid tank below described acid solution spray thrower.
A kind of evaporimeter steaming as above, except ammonia and ammonium salt reclamation vapo(u)rization system, is characterized in that described pickling system is connected with the pickling circulatory system.
A kind of evaporimeter steaming as above is except ammonia and ammonium salt reclamation vapo(u)rization system, it is characterized in that the described pickling circulatory system includes acid solution storage tank, be connected with a measuring pump at described acid solution storage tank, described measuring pump is connected with acid solution spray thrower, described in connect acid tank and be connected with acid solution storage tank.
A kind of evaporimeter steaming, except ammonia and ammonium salt reclamation technique, is characterized in that comprising the following steps:
A, unlatching measuring pump, to pickling system pumping acid solution, make evaporimeter include ammonia steam and acid liquid reaction;
B, employing demister take out acid solution or the mist of the steam entrained with after pickling;
C, from cloth abacus, overflowing the ammonium salt-containing acid solution of dripping from connecing after recycling step A acid tank reacts, delivering to acid solution storage tank;
D, add in acid solution storage tank ammonia absorb liquid, make ammonia become ammonium salt.
A kind of evaporimeter steaming as above is except ammonia and ammonium salt reclamation technique, and it is characterized in that described ammonia absorbs liquid is sulfuric acid.
In sum, the present invention relative to its beneficial effect of prior art is:
Can ensure that distilled water water outlet is qualified when the evaporation of process above-mentioned waste water, distilled water can direct reuse or can qualified discharge, and can recycle absorbing the ammonium salt produced after ammonia in distilled water as nitrogenous fertilizer washing steam.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is generalized section of the present invention.
Detailed description of the invention
Illustrate that the invention will be further described with detailed description of the invention below in conjunction with accompanying drawing:
A kind of evaporimeter steaming as shown in Fig. 1 to 2, except ammonia and ammonium salt reclamation vapo(u)rization system, includes evaporimeter 1, is provided with heat exchanger tube 2 in evaporimeter 1, is provided with the ammonia removal device 3 that can absorb contained ammonia in steam in evaporimeter 1 in described evaporimeter 1 upper end.
Ammonia removal device 3 described in the present invention includes gas skirt 31, in described gas skirt 31, be provided with pickling system 32, is provided with the acid solution of the steam entrained with after removing pickling or the demister 33 of mist above described pickling system 32.
Pickling system 32 described in the present invention includes cloth acid dish 321, described cloth acid dish 321 is provided with acid solution spray thrower 322, is provided with and connects acid tank 323 below described acid solution spray thrower 322.
Pickling system 32 of the present invention is connected with the pickling circulatory system.
The circulatory system of pickling described in the present invention includes acid solution storage tank, and be connected with a measuring pump at described acid solution storage tank, described measuring pump is connected with acid solution spray thrower 322, described in connect acid tank 323 and be connected with acid solution storage tank.
A kind of evaporimeter steaming of the present invention, except ammonia and ammonium salt reclamation technique, comprises the following steps:
A, unlatching measuring pump, to pickling system 32 pumping acid solution, make evaporimeter include ammonia steam and acid liquid reaction;
B, employing demister take out acid solution or the mist of the steam entrained with after pickling;
C, from cloth abacus, overflowing the ammonium salt-containing acid solution of dripping from connecing after recycling step A acid tank 323 reacts, delivering to acid solution storage tank;
D, add in acid solution storage tank ammonia absorb liquid, make ammonia become ammonium salt.
It is sulfuric acid that ammonia described in the present invention absorbs liquid.
Operation principle of the present invention:
After entering evaporimeter containing high ammonia-nitrogen wastewater, by heating evaporation, evaporimeter can be multiple pattern, both can be the mechanical steam compression evaporating system MechanicalVaporCompression that is power with high-efficiency steam compressor, also can be the multi-effect evaporation system MultipleEffectDistillation using steam as motive force, if waste water PH is not very low, owing to containing a large amount of free ammonia in waste water, in evaporation process, ammonia can be overflowed with distilled water, present invention process is designed with pickling system at demister place, when steam passes through by pickling system the moisture film formed by acid solution, acid forms ammonium salt with the ammonia react in steam, ammonia in steam is retained down, reach the object of purified steam, after absorbing, acid solution drops onto below acid recovery groove from cloth acid dish spilling, be back to sour storage tank afterwards, ammonium salt is after acid storage tank inner liquid medicine absorbs, general sulfuric acid is as absorbing liquid, gained ammonium salt is ammonium sulfate, ammonium sulfate is a kind of nitrogenous fertilizer of high-quality, can for recycling.
Give the effect of parts as follows in the present invention:
1, evaporimeter: evaporate material, produces steam;
2, demister: except entrained with acid solution and mist in devaporation;
3, pickling system: can make sour absorbing liquid cloth last layer uniform liquid film on acid elution system cloth acid dish, the thickness of acid solution film need ensure that steam is in the process of passing through sorrel, and the ammonia in steam is absorbed completely, can not cause the excessive pressure loss simultaneously.
4, connect acid tank: the design of acid recovery groove can be reclaimed acid solution and gained ammonium salt, reduce the consumption of acid elution system acid solution, simultaneously also recyclable ammonium salt.
5, acid circulation system: acid circulation system is made up of acid solution storage tank and a measuring pump, acid circulation system provides acid solution for acid elution system, ensures normally carrying out of absorption.
Absorb complete acid pickle and be ammonium sulfate fertilizer, recoverable.
The evaporation of whole system to high ammonia-nitrogen wastewater is optimized, and guarantees that evaporation gained distilled water can direct reuse or reach environment protection emission requirement, and acid absorb after waste liquid also recycle as fertilizer, reach the effect of energy-saving and emission-reduction.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. an evaporimeter steaming is except ammonia and ammonium salt reclamation vapo(u)rization system, it is characterized in that: include evaporimeter (1), in evaporimeter (1), be provided with heat exchanger tube (2), be provided with the ammonia removal device (3) that can absorb contained ammonia in steam in evaporimeter (1) in described evaporimeter (1) upper end.
2. a kind of evaporimeter steaming according to claim 1 is except ammonia and ammonium salt reclamation vapo(u)rization system, it is characterized in that described ammonia removal device (3) includes gas skirt (31), in described gas skirt (31), be provided with pickling system (32), be provided with the acid solution of the steam entrained with after removing pickling or the demister (33) of mist in described pickling system (32) top.
3. a kind of evaporimeter steaming according to claim 2 is except ammonia and ammonium salt reclamation vapo(u)rization system, it is characterized in that described pickling system (32) includes cloth acid dish (321), described cloth acid dish (321) is provided with acid solution spray thrower (322), is provided with in described acid solution spray thrower (322) below and connects acid tank (323).
4. a kind of evaporimeter steaming according to Claims 2 or 3, except ammonia and ammonium salt reclamation vapo(u)rization system, is characterized in that described pickling system (32) is connected with the pickling circulatory system.
5. a kind of evaporimeter steaming according to claim 4 is except ammonia and ammonium salt reclamation vapo(u)rization system, it is characterized in that the described pickling circulatory system includes acid solution storage tank, be connected with a measuring pump at described acid solution storage tank, described measuring pump is connected with acid solution spray thrower (322), described in connect acid tank (323) and be connected with acid solution storage tank.
6. evaporimeter steaming is except ammonia and an ammonium salt reclamation technique, it is characterized in that comprising the following steps:
A, unlatching measuring pump, to pickling system (32) pumping acid solution, make evaporimeter include ammonia steam and acid liquid reaction;
B, employing demister take out acid solution or the mist of the steam entrained with after pickling;
C, from cloth abacus, overflowing the ammonium salt-containing acid solution of dripping from connecing after recycling step A acid tank (323) reacts, delivering to acid solution storage tank;
D, add in acid solution storage tank ammonia absorb liquid, make ammonia become ammonium salt.
7. a kind of evaporimeter steaming according to claim 6 is except ammonia and ammonium salt reclamation technique, and it is characterized in that described ammonia absorbs liquid is sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444697.6A CN105126574B (en) | 2015-07-24 | 2015-07-24 | A kind of evaporator steaming is except ammonia and ammonium salt reclamation vapo(u)rization system and technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444697.6A CN105126574B (en) | 2015-07-24 | 2015-07-24 | A kind of evaporator steaming is except ammonia and ammonium salt reclamation vapo(u)rization system and technique |
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| CN105126574A true CN105126574A (en) | 2015-12-09 |
| CN105126574B CN105126574B (en) | 2018-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759571A (en) * | 2019-10-31 | 2020-02-07 | 广东闻扬环境科技有限公司 | Fly ash leachate treatment system and treatment method |
| CN112546813A (en) * | 2020-12-21 | 2021-03-26 | 大连广泰源环保科技有限公司 | Multi-flow type acid washing gas device and application thereof |
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| CN101182049A (en) * | 2007-11-23 | 2008-05-21 | 陈伟雄 | Evaporation system for treating refuse leachate |
| CN102358625A (en) * | 2011-09-09 | 2012-02-22 | 陈伟雄 | Garbage-percolate evaporating and concentrating processing method capable of recycling ammonia and device thereof |
| US20120175240A1 (en) * | 2009-08-10 | 2012-07-12 | Alcoa Of Australia Limited | Method and apparatus for odorant removal |
| CN103041679A (en) * | 2013-01-15 | 2013-04-17 | 美景（北京）环保科技有限公司 | Waste gas treatment system of acid gas containing ammonia |
| CN103118765A (en) * | 2010-05-25 | 2013-05-22 | 威立雅水处理技术北美公司 | Process of scrubbing volatiles from evaporator water vapor |
| JP2013228120A (en) * | 2012-04-24 | 2013-11-07 | Hitachi Building Systems Co Ltd | Ammonia removal device and ammonia removal method for absorption water cooling and heating machine or absorption refrigerating machine |
| 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 |
| CN205294880U (en) * | 2015-07-24 | 2016-06-08 | 中山沃尔威多水处理设备有限公司 | Washing of evaporimeter steam removes ammonia and vaporization system is retrieved to ammonium salt |
-
2015
- 2015-07-24 CN CN201510444697.6A patent/CN105126574B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182049A (en) * | 2007-11-23 | 2008-05-21 | 陈伟雄 | Evaporation system for treating refuse leachate |
| US20120175240A1 (en) * | 2009-08-10 | 2012-07-12 | Alcoa Of Australia Limited | Method and apparatus for odorant removal |
| CN103118765A (en) * | 2010-05-25 | 2013-05-22 | 威立雅水处理技术北美公司 | Process of scrubbing volatiles from evaporator water vapor |
| CN102358625A (en) * | 2011-09-09 | 2012-02-22 | 陈伟雄 | Garbage-percolate evaporating and concentrating processing method capable of recycling ammonia and device thereof |
| JP2013228120A (en) * | 2012-04-24 | 2013-11-07 | Hitachi Building Systems Co Ltd | Ammonia removal device and ammonia removal method for absorption water cooling and heating machine or absorption refrigerating machine |
| CN103041679A (en) * | 2013-01-15 | 2013-04-17 | 美景（北京）环保科技有限公司 | Waste gas treatment system of acid gas containing ammonia |
| 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 |
| CN205294880U (en) * | 2015-07-24 | 2016-06-08 | 中山沃尔威多水处理设备有限公司 | Washing of evaporimeter steam removes ammonia and vaporization system is retrieved to ammonium salt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759571A (en) * | 2019-10-31 | 2020-02-07 | 广东闻扬环境科技有限公司 | Fly ash leachate treatment system and treatment method |
| CN112546813A (en) * | 2020-12-21 | 2021-03-26 | 大连广泰源环保科技有限公司 | Multi-flow type acid washing gas device and application thereof |
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| CN105126574B (en) | 2018-06-26 |
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