CN207046874U - A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water - Google Patents
A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water Download PDFInfo
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- CN207046874U CN207046874U CN201720878918.5U CN201720878918U CN207046874U CN 207046874 U CN207046874 U CN 207046874U CN 201720878918 U CN201720878918 U CN 201720878918U CN 207046874 U CN207046874 U CN 207046874U
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- reboiler
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Abstract
The utility model discloses a kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water, the system includes rectifying column, mechanical compressor and reboiler, the tower top installation mechanical compressor of rectifying column, and the reboiler that mechanical compressor is installed with tower reactor is connected；The both vapor compression of rectifying column tower top is superheated steam by setting mechanical compressor by the system, the release heat of transformation is condensed into reboiler, so as to provide thermal source for rectifying column, without providing thermal source in addition in addition to first start-up, not only realize ammoniacal liquor recovery, discharged wastewater met the national standard, and circulating cooling water consumption is few, and equipment is simple, invest small, system operatio is stable, finally reclaims ammonia concn >=15%, has good market prospects.
Description
Technical field
The utility model belongs to field of waste water treatment, more particularly to a kind of recycling treatment that ammonia is reclaimed from ammonia nitrogen waste water
System.
Background technology
It is the mature technology that generally uses using rectifying deamination is stripped, and traditional distillation system is generally carried by reboiler
Supplying heat source, i.e., reboiler is set in tower bottom of rectifying tower, steam is passed through into reboiler, the heat of transformation that release is condensed using steam will
Tower bottoms further vaporizes, so that tower reactor produces the steam risen.
But in actual production, this tower reactor mode of heating there is it is notable the problem of such as：When steam pressure fluctuates,
Temperature in tower can not be ensured, the stabilization of pressure, then influence the normal operating of tower；In addition, large steam consumption, cold also be present
The reuse of condensate difficulty, water consumption is big for circulation, equipment invests the deficiencies of big more.
Therefore, inventor thinks have well for the further improvement of distillation technology and the exploitation of recovery ammonia new technology
Market prospects.
Utility model content
Fluctuated greatly by steam pressure to solve traditional distillation technology, can not ensure that the stabilization of temperature and pressure is asked in tower
Large steam consumption while topic also be present, cooling shipwreck recovery circulation water consumption big equipment is invested the deficiencies of big more, the present invention carries
Go out a kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water.
For the above-mentioned purpose, the utility model adopts the following technical scheme that：
A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water, the system include rectifying column, mechanical compressor
And reboiler, the tower top installation mechanical compressor of the rectifying column, the reboiler that the mechanical compressor is installed with tower reactor are connected.
The tower top of the rectifying column is provided with steam (vapor) outlet and condensate liquid import, the steam (vapor) outlet and mechanical compressor phase
Even, the condensate liquid import is connected with reboiler.
The tower reactor of the rectifying column is provided with steam inlet and liquid outlet, and the steam inlet and liquid outlet with boiling again
Device is connected.
The reboiler top is provided with steam inlet and steam (vapor) outlet, and bottom is provided with liquid inlet and condensate outlet.
The condensate liquid import of the rectifying column tower top is connected with the condensate outlet of reboiler bottom.
The steam inlet of the tower bottom of rectifying tower is connected with the steam (vapor) outlet on reboiler top, liquid outlet and reboiler bottom
End liquid inlet is connected.
The condensate outlet of the reboiler is also connected with condensate cooler.
The system is additionally provided with preheater, and the preheater is connected with water inlet in the middle part of rectifying column.
The preheater is also connected with the tower reactor liquid outlet of rectifying column.
Compared with conventional art, the utility model has the advantages that：
1st, the utility model discloses a kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water, the system is by setting
It is superheated steam to put the ammonia compression that mechanical compressor effectively escapes rectifying column tower top, condenses and discharges into reboiler
The heat of transformation, so as to further provide thermal source for rectifying column, cost is greatly reduced, is disappeared in addition to first start-up without additional steam
Consumption；
2nd, present treatment system is compared to tradition stripping rectification method, no steam consumption, there is provided a kind of new paragon for obtaining thermal source
While realize effective utilization of tower top ammonia steam；
3rd, present treatment system except circulating cooling water consumption it is few, equipment is few, and investment is small, and system operatio is stable outer, reclaims ammonia
Water concentration >=15%.
Brief description of the drawings
Fig. 1 is the process chart of the utility model processing system.
In figure：1- rectifying columns；2- mechanical compressors；3- reboilers；4- condensate coolers；5- preheaters.
Embodiment
For the utility model is better described, the technical solution of the utility model is readily appreciated, below to the utility model
It is further described.But following embodiments is only simple example of the present utility model, does not represent or limit this reality
With new rights protection scope, the scope of protection of the utility model is defined by claims.
As shown in figure 1, a kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water, it includes rectifying column 1, machinery pressure
Contracting machine 2 and reboiler 3, the tower top installation mechanical compressor 2 of rectifying column 1, the phase of reboiler 3 that mechanical compressor 2 is installed with tower reactor
Even.
Wherein, the tower top of rectifying column 1 is provided with steam (vapor) outlet and condensate liquid import, and steam (vapor) outlet is connected with mechanical compressor 2,
Condensate liquid import is connected with reboiler 3；Tower reactor is provided with steam inlet and liquid outlet, and steam inlet and liquid outlet with boiling again
Device 3 is connected；
The top of reboiler 3 is provided with steam inlet and steam (vapor) outlet, and bottom is provided with liquid inlet and condensate outlet；Rectifying column
The condensate liquid import of 1 tower top is connected with the condensate outlet of the bottom of reboiler 3；The steam inlet of tower reactor and the top of reboiler 3
Steam (vapor) outlet is connected, and liquid outlet is connected with the bottoms liquid entrance of reboiler 3；The condensate outlet of reboiler 3 is also cold with condensation
But device 4 is connected；System is additionally provided with preheater 5, and preheater 5 is connected with the middle part water inlet of rectifying column 1；Preheater 5 also with rectifying column 1
Tower reactor liquid outlet be connected.
In practical operation, waste water enters distillation system after being preheated by preheater, and saturation is passed through into tower reactor reboiler
Steam（0.4Mpa）, tower reactor is heated, when tower top temperature rises to 80 DEG C of ＞, ammonia escapes from tower top and is introduced into mechanical
Compressor compresses, pressure increase（0.4~1Mpa）, turn into superheated steam (100 ~ 150 DEG C), into reboiler；
In reboiler, the superheated steam condensation release heat of transformation, after tower bottom of rectifying tower enters the heated liquid of reboiler
Part vaporizes, and turns into upflowing vapor and returns to tower reactor；Rectifying column tower top, portion are partly refluxed to from the ammoniacal liquor condensate liquid of reboiler discharge
Divide into condensate cooler and further condense cooling, for reclaiming ammoniacal liquor, ammonia concn >=15%；
The direct qualified discharge of waste water come out from preheater, ammonia-nitrogen content≤15mg/L.
Embodiment 1
The ammonia nitrogen waste water of certain enterprise, ammonia-nitrogen content 0.5g/L.
Step（1）：Take 10m3The above-mentioned solution of/h, enter after preheated device preheating in rectifying column；
Step（2）：To step（1）0.2Mpa saturated vapor is passed through in tower bottom of rectifying tower reboiler, tower reactor is heated, treated
When tower top temperature rises to 80 DEG C of ＞, ammonia escapes from tower top；
Step（3）：By step（2）The ammonia of tower top effusion enters reboiler, ammonia after introducing mechanical compressor compresses
The solidifying release heat of transformation of air cooling, is partly vaporized after entering the heated liquid of reboiler from tower reactor, is turned into upflowing vapor and is returned to tower reactor；Pressure
Ammonia pressure after contracting is 0.4MPa, and temperature is 100 DEG C；
Step（4）：Tower reactor water outlet enters step（1）Preheater heats to water inlet；
Step（5）：Ammoniacal liquor reclaims；
Step（6）：Step（3）Condense obtained ammoniacal liquor condensate liquid and be partly refluxed to step（1）Rectifying column tower top, partly enter
Enter condensate cooler and further condense cooling, reclaim ammoniacal liquor, ammonia concn >=15%；
Step（7）：The direct qualified discharge of waste water come out from preheater.
Embodiment 2
The ammonia nitrogen waste water of certain enterprise, ammonia-nitrogen content 15g/L.
Step（1）：Take 10m3The above-mentioned solution of/h, enter after preheated device preheating in rectifying column；
Step（2）：To step（1）0.5Mpa saturated vapor is passed through in tower bottom of rectifying tower reboiler, tower reactor is heated, treated
When tower top temperature rises to 85 DEG C, ammonia escapes from tower top；
Step（3）：By step（2）The ammonia of tower top effusion enters reboiler, ammonia after introducing mechanical compressor compresses
Airsetting discharges the heat of transformation, is partly vaporized after entering the heated liquid of reboiler from tower reactor, turns into upflowing vapor and returns to tower reactor；Compression
Ammonia pressure afterwards is 0.6MPa, and temperature is 120 DEG C；
Step（4）：Tower reactor water outlet enters step（1）Preheater heats to water inlet；
Step（5）：Ammoniacal liquor reclaims；
Step（6）：Step（3）Condense obtained ammoniacal liquor condensate liquid and be partly refluxed to step（1）Rectifying column tower top, partly enter
Enter condensate cooler and further condense cooling, reclaim ammoniacal liquor, ammonia concn >=15%；
Step（7）：The direct qualified discharge of waste water come out from preheater.
Embodiment 3
The ammonia nitrogen waste water of certain enterprise, ammonia nitrogen concentration 30g/L.
Step（1）：Take 10m3The above-mentioned solution of/h, enter after preheated device preheating in rectifying column；
Step（2）：To step（1）0.4Mpa saturated vapor is passed through in tower bottom of rectifying tower reboiler, tower reactor is heated, treated
When tower top temperature rises to 90 DEG C, ammonia escapes from tower top；
Step（3）：By step（2）The ammonia of tower top effusion enters reboiler, ammonia after introducing mechanical compressor compresses
The solidifying release heat of transformation of air cooling, is partly vaporized after entering the heated liquid of reboiler from tower reactor, is turned into upflowing vapor and is returned to tower reactor；Pressure
Ammonia pressure after contracting is 1.0MPa, and temperature is 150 DEG C；
Step（4）：Tower reactor water outlet enters step（1）Preheater heats to water inlet；
Step（5）：Ammoniacal liquor reclaims；
Step（6）：Step（3）Condense obtained ammoniacal liquor condensate liquid and be partly refluxed to step（1）Rectifying column tower top, partly enter
Enter condensate cooler and further condense cooling, reclaim ammoniacal liquor, ammonia concn >=15%；
Step（7）：The direct qualified discharge of waste water come out from preheater.
Embodiment 4
The ammonia nitrogen waste water of certain enterprise, ammonia-nitrogen content 60g/L.
Step（1）：Take 10m3The above-mentioned solution of/h, enter after preheated device preheating in rectifying column
Step（2）：To step（1）0.8Mpa saturated vapor is passed through in tower bottom of rectifying tower reboiler, tower reactor is heated, treated
When tower top temperature rises to 90 DEG C, ammonia escapes from tower top；
Step（3）：By step（2）The ammonia of tower top effusion enters reboiler, ammonia after introducing mechanical compressor compresses
The solidifying release heat of transformation of air cooling, is partly vaporized after entering the heated liquid of reboiler from tower reactor, is turned into upflowing vapor and is returned to tower reactor；Pressure
Ammonia pressure after contracting is 1.5MPa, and temperature is 200 DEG C；
Step（4）：Tower reactor water outlet enters step（1）Preheater heats to water inlet；
Step（5）：Ammoniacal liquor reclaims；
Step（6）：Step（3）Condense obtained ammoniacal liquor condensate liquid and be partly refluxed to step（1）Rectifying column tower top, partly enter
Enter condensate cooler and further condense cooling, reclaim ammoniacal liquor, ammonia concn >=15%；
Step（7）：The direct qualified discharge of waste water come out from preheater.
Applicant states that the utility model illustrates detailed process equipment and work of the present utility model by above-described embodiment
Skill flow, but the utility model is not limited to above-mentioned detailed process equipment and technological process, that is, does not mean that the utility model
Having to rely on above-mentioned detailed process equipment and technological process could implement.Person of ordinary skill in the field is it will be clearly understood that right
Any improvement of the present utility model, the adding of equivalence replacement and auxiliary element to each raw material of the utility model product, specific side
Selection of formula etc., within the scope of all falling within the scope of protection of the utility model and disclosing.
Claims (9)
1. a kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water, it is characterised in that the system includes rectifying column
（1）, mechanical compressor（2）And reboiler（3）, the rectifying column（1）Tower top installation mechanical compressor（2）, the machinery pressure
Contracting machine（2）With the reboiler of tower reactor installation（3）It is connected.
2. processing system as claimed in claim 1, it is characterised in that the rectifying column（1）Tower top be provided with steam (vapor) outlet and
Condensate liquid import, the steam (vapor) outlet and mechanical compressor（2）It is connected, the condensate liquid import and reboiler（3）It is connected.
3. processing system as claimed in claim 2, it is characterised in that the rectifying column（1）Tower reactor be provided with steam inlet and
Liquid outlet, the steam inlet and liquid outlet are and reboiler（3）It is connected.
4. processing system as claimed in claim 3, it is characterised in that the reboiler（3）Top is provided with steam inlet and steaming
Vapor outlet, bottom are provided with liquid inlet and condensate outlet.
5. processing system as claimed in claim 4, it is characterised in that the rectifying column（1）The condensate liquid import of tower top with again
Boil device（3）The condensate outlet of bottom is connected.
6. processing system as claimed in claim 5, it is characterised in that the rectifying column（1）The steam inlet of tower reactor with boiling again
Device（3）The steam (vapor) outlet on top is connected, liquid outlet and reboiler（3）Bottoms liquid entrance is connected.
7. the processing system as described in any claim in claim 1-6, it is characterised in that the reboiler（3）It is cold
Condensate outlet also with condensate cooler（4）It is connected.
8. processing system as claimed in claim 7, it is characterised in that the system is additionally provided with preheater（5）, the preheater
（5）With rectifying column（1）Middle part water inlet is connected.
9. processing system as claimed in claim 8, it is characterised in that the preheater（5）Also with rectifying column（1）Tower bottoms
Body outlet is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878918.5U CN207046874U (en) | 2017-07-19 | 2017-07-19 | A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720878918.5U CN207046874U (en) | 2017-07-19 | 2017-07-19 | A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water |
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| CN207046874U true CN207046874U (en) | 2018-02-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264060A (en) * | 2018-03-19 | 2018-07-10 | 上海众仕工程技术有限公司 | A kind of special ammonia distillation ammonia-preparing device of energy-saving denitration |
| CN108373159A (en) * | 2018-05-10 | 2018-08-07 | 江西铜鼓有色冶金化工有限责任公司 | The retracting device and recovery method of ammonia during a kind of ammonium paratungstate production |
| CN112827207A (en) * | 2021-02-25 | 2021-05-25 | 浙江宸轩透平机制造有限公司 | Mechanical chemical medium vapor recompression rectification device and method |
| CN112875783A (en) * | 2021-04-14 | 2021-06-01 | 北京中科康仑环境科技研究院有限公司 | System and method for treating wastewater containing volatile substances |
-
2017
- 2017-07-19 CN CN201720878918.5U patent/CN207046874U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264060A (en) * | 2018-03-19 | 2018-07-10 | 上海众仕工程技术有限公司 | A kind of special ammonia distillation ammonia-preparing device of energy-saving denitration |
| CN108264060B (en) * | 2018-03-19 | 2023-12-29 | 上海众仕环境科技股份有限公司 | Energy-saving ammonia water distillation ammonia production device special for denitration |
| CN108373159A (en) * | 2018-05-10 | 2018-08-07 | 江西铜鼓有色冶金化工有限责任公司 | The retracting device and recovery method of ammonia during a kind of ammonium paratungstate production |
| CN112827207A (en) * | 2021-02-25 | 2021-05-25 | 浙江宸轩透平机制造有限公司 | Mechanical chemical medium vapor recompression rectification device and method |
| CN112875783A (en) * | 2021-04-14 | 2021-06-01 | 北京中科康仑环境科技研究院有限公司 | System and method for treating wastewater containing volatile substances |
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