CN108264060B - Energy-saving ammonia water distillation ammonia production device special for denitration - Google Patents
Energy-saving ammonia water distillation ammonia production device special for denitration Download PDFInfo
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- CN108264060B CN108264060B CN201810224828.3A CN201810224828A CN108264060B CN 108264060 B CN108264060 B CN 108264060B CN 201810224828 A CN201810224828 A CN 201810224828A CN 108264060 B CN108264060 B CN 108264060B
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- ammonia
- ammonia water
- denitration
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- concentrated
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 175
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 235000011114 ammonium hydroxide Nutrition 0.000 title claims abstract description 107
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 79
- 238000004821 distillation Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 238000000197 pyrolysis Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/10—Separation of ammonia from ammonia liquors, e.g. gas liquors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- 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
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides an energy-saving special aqueous ammonia distillation ammonia preparation device of denitration, it includes strong ammonia holding vessel (1), the output of strong ammonia holding vessel (1) is connected to strong ammonia water preheater (2), the output of strong ammonia water preheater (2) is connected with weak ammonia water cooler (5), the output of strong ammonia water preheater (2) is connected with ammonia still (6), weak ammonia water cooler (5) are connected to weak ammonia water holding vessel (7), overhead of ammonia still (6) are equipped with overhead of a tower branch shrink ware (10). The energy-saving ammonia water distillation ammonia production device special for denitration adopts a rectifying tower method to produce ammonia, concentrated ammonia water is fed into the tower, the ammonia water is evaporated by the heat of a heater, ammonia water is continuously concentrated by tower internals, the ammonia purity is improved, and finally high-concentration ammonia water is extracted from the tower top for denitration; the rectifying tower is adopted, so that larger ammonia yield can be provided, and the adjusting range is larger. The preheater is arranged, so that the heat of the system can be recovered, and the energy-saving effect is achieved.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to an energy-saving ammonia water distillation ammonia production device special for denitration.
Background
At present, the flue gas denitration of a garbage power plant is gradually updated to SNCR+SCR from the original SNCR, and a reducing agent ammonia is needed during SCR denitration. In the prior art, an ammonia evaporation mixing technology or a urea pyrolysis technology is mostly adopted.
The ammonia water evaporation mixing technology is that air is conveyed into a steam heater through a dilution fan, the air is heated, heated hot air is conveyed into an evaporation mixer, a double-fluid atomization spray gun is arranged in the evaporation mixer, ammonia water is atomized through compressed air, atomized ammonia water is mixed with the hot air, ammonia water is evaporated to form ammonia gas, and finally ammonia air mixture is used as a reducing agent for denitration. The urea pyrolysis technology adopts hot air with the temperature of more than 500 ℃ to pyrolyze urea solution into ammonia, a high-temperature electric heater and an atomization spray gun are required to be arranged, and because the pyrolysis temperature is high, the whole system is required to adopt high-temperature-resistant alloy steel, and a plurality of temperature measurement control points are required.
However, the existing ammonia evaporation mixing technology has the following defects: 1) The ammonia evaporation mixing is suitable for small-flow ammonia gas or the use of a single denitration system, and is not suitable for the sharing of multiple sets. 2) Because of the low heat transfer coefficient of the air side due to the heating of the air, a large heat exchange area is required and the equipment is relatively large. 3) The double-fluid atomizing spray gun is needed, compressed air for atomization is needed to be additionally introduced, and more compressed air is needed to be consumed. 4) The denitration of each boiler is parallel with a plurality of lines, a plurality of sets of evaporation mixing systems are needed to be put into, and the investment of the whole project is high.
The existing urea pyrolysis technology has the following defects: 1) The system is suitable for preparing ammonia by pyrolysis with small flow and is not suitable for sharing by multiple sets. 2) Because of the low heat transfer coefficient of the air side due to the heating of the air, a large heat exchange area is required and the equipment is relatively large. 3) The spray gun is easy to be blocked due to the urea solution by adopting the double-fluid atomization spray gun. 4) The pyrolysis process has high temperature control requirement, and the pyrolysis process is often decomposed into polycondensates in the operation process, so that equipment is blocked, and frequent shutdown and cleaning are required. 5) Because the hot air operation temperature is high, the whole system needs to adopt high-temperature resistant alloy steel, and the overall investment is high.
Disclosure of Invention
Aiming at the technical defects existing in the existing flue gas denitration process of the garbage power plant, the invention provides an energy-saving ammonia water distillation ammonia production device special for denitration, ammonia gas is prepared by adopting a rectifying tower method, concentrated ammonia water is sent into a tower, the ammonia water is evaporated by the heat of a heater, ammonia gas is continuously concentrated by tower internals, the ammonia gas purity is improved, and finally high-concentration ammonia gas is extracted from the tower top for denitration; the rectifying tower is adopted, so that larger ammonia yield can be provided, and the adjusting range is larger. The preheater is arranged, so that the heat of the system can be recovered, and the energy-saving effect is achieved.
Technical proposal
In order to achieve the technical purpose, the invention relates to an energy-saving ammonia water distillation ammonia production device special for denitration, which is characterized in that: the device comprises a concentrated ammonia water storage tank, wherein the output end of the concentrated ammonia water storage tank is connected to a concentrated ammonia water preheater, a first safety cut-off valve and a concentrated ammonia water delivery pump are sequentially arranged on a connecting pipeline of the concentrated ammonia water storage tank and the concentrated ammonia water preheater, a first output port of the concentrated ammonia water preheater is connected with a dilute ammonia water cooler, a second output port of the concentrated ammonia water preheater is connected with an ammonia distillation tower, the dilute ammonia water cooler is connected to the dilute ammonia water storage tank, a dilute ammonia water flowmeter and a dilute ammonia water delivery pump are arranged on a connecting pipeline of the dilute ammonia water cooler and the dilute ammonia water storage tank, a tower top separator is arranged on the tower top of the ammonia distillation tower, the tower top separator is connected with an ammonia buffer tank, the output end of the ammonia buffer tank and the denitration system are sequentially provided with a second safety cut-off valve, a flow regulating valve and a flow control valve, the bottom end of the ammonia distillation tower is connected with a reboiling heater, the reboiling heater and the output port of the concentrated ammonia water preheater are connected with a third output port of the dilute ammonia water heater, and the steam buffer tank is provided with a steam flow regulating valve, and the steam heater is provided with a steam outlet valve.
Further, the denitration system comprises a denitration ammonia injection grid.
Further, a concentrated ammonia water flowmeter is arranged on a pipeline connected with the concentrated ammonia water preheater and the ammonia distillation tower.
Further, a tower kettle liquid level controller and a tower kettle temperature controller are arranged at the bottom end of the ammonia still.
Further, a pressure sensor, a liquid level sensor and a safety valve are arranged on the ammonia buffer tank.
Advantageous effects
According to the energy-saving ammonia water distillation ammonia production device special for denitration, ammonia gas is produced by adopting a rectifying tower method, concentrated ammonia water is fed into the tower, the ammonia water is evaporated by the heat of heating of a heater, ammonia gas is continuously concentrated by tower internals, the ammonia gas purity is improved, and finally high-concentration ammonia gas is extracted from the tower top for denitration; the rectifying tower is adopted, so that larger ammonia yield can be provided, and the adjusting range is larger. The preheater is arranged, so that the heat of the system can be recovered, and the energy-saving effect is achieved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Examples
As shown in figure 1, the energy-saving ammonia water distillation ammonia production device special for denitration comprises a concentrated ammonia water storage tank 1, wherein the output end of the concentrated ammonia water storage tank 1 is connected to a concentrated ammonia water preheater 2, a connecting pipeline of the concentrated ammonia water storage tank 1 and the concentrated ammonia water preheater 2 is sequentially provided with a safety cut-off valve I3 and a concentrated ammonia water delivery pump 4, the output port I of the concentrated ammonia water preheater 2 is connected with a dilute ammonia water cooler 5, the output port II of the concentrated ammonia water preheater 2 is connected with an ammonia distillation tower 6, and a concentrated ammonia water flowmeter 19 is arranged on a pipeline of the concentrated ammonia water preheater 2 connected with the ammonia distillation tower 6. The dilute ammonia water cooler 5 is connected to the dilute ammonia water storage tank 7, a dilute ammonia water flowmeter 8 and a dilute ammonia water delivery pump 9 are arranged on a connecting pipeline of the dilute ammonia water cooler 5 and the dilute ammonia water storage tank 7, a tower top separator 10 is arranged at the top of the ammonia still 6, the tower top separator 10 is connected with an ammonia buffer tank 11, the output end of the ammonia buffer tank 11 is connected to a plurality of denitration systems 12, a safety shut-off valve II 13, a flow control valve 14 and a flow control valve 15 are sequentially arranged on a connecting pipeline of the ammonia buffer tank 11 and the denitration systems 12, the bottom end of the ammonia still 6 is connected with a reboiling heater 16, the reboiling heater 16 is connected with an output port III of the concentrated ammonia water preheater 2, a steam flow control valve 17 is arranged at the input end of the reboiling heater 16, and a steam drainage system 18 is arranged at the output end of the reboiling heater 16.
The denitration system 12 includes a denitration ammonia injection grid 1201.
The bottom end of the ammonia still 6 is provided with a tower kettle liquid level controller 20 and a tower kettle temperature controller 21.
The ammonia buffer tank 11 is provided with a pressure sensor 22, a liquid level sensor 23 and a safety valve 24.
The process flow of the embodiment is as follows:
the ammonia water in the concentrated ammonia water storage tank 1 is sent into an ammonia distillation system by adopting a concentrated ammonia water delivery pump 4, the concentrated ammonia water is firstly sent into a concentrated ammonia water preheater 2, heat is recovered after heat exchange with the bottom liquid of the ammonia distillation tower 6, the recovered heat is sent into a feed pipe of the ammonia distillation tower 6, and the concentrated ammonia water is subjected to heat transfer and mass transfer in the tower to separate ammonia from water. Ammonia gas is gradually separated from ammonia water, collected at the top of the tower, further purified by a tower top separator 10, and high-concentration ammonia gas at the top of the tower is conveyed to an ammonia buffer tank 11 through a pipeline. The ammonia gas buffer tank 11 export sets up ammonia metering and distributing module, and ammonia metering and distributing module includes: a flow regulating valve 14 and a flow control valve 15. The metering module is interlocked with the data of the flue gas denitration nitrogen oxides, and the delivery quantity of the ammonia gas is regulated through the flow regulating valve 14 through signal feedback, so that continuous and stable ammonia supply of a denitration line is met. The metering and distributing modules can be arranged in a plurality of groups, can be sent to different denitration lines in a parallel mode, and can simultaneously meet the use of a plurality of lines.
After separation and purification are carried out in the ammonia still 6, dilute ammonia water with low concentration is collected in a tower kettle, the dilute ammonia water in the tower kettle is conveyed to the preheater 2, exchanges heat with cold ammonia water, recovers heat, is conveyed into the dilute ammonia water cooler 5, is cooled to normal temperature, is conveyed to the dilute ammonia water tank 7 in a tank area through the dilute ammonia water conveying pump 9, and can meter the flow of the dilute ammonia water through the dilute ammonia water flowmeter 8.
The ammonia still 6 is provided with a reboiling heater 16 which supplies heat to the system through steam, meeting the heat demand of ammonia still. The input end of the reboiling heater 16 is provided with a steam flow regulating valve 17, and the output end of the reboiling heater 16 is provided with a steam drainage system 18. The steam is regulated by the flow regulating valve 17, so that the reboiling heater 16 is ensured to continuously and stably feed in steam.
The embodiment has the advantages that: 1) Can realize that many denitration lines share system ammonia system, satisfy 6 denitration and even more denitration's use, only need 1 set of ammonia distillation system. 2) Can satisfy the simultaneous use of many sets of denitration systems, when the denitration line is many, the advantage is more obvious. 3) The ammonia distillation load has a large adjustable range and can meet the denitration requirements of different production lines. 4) The ammonia water feeding amount and the ammonia gas discharging amount are controlled in an interlocking way, and the ammonia water feeding amount can be fed back in advance, so that the ammonia distillation process is stable and does not fluctuate. 5) By adopting column plate type rectification, the ammonia gas has high purity which can reach more than 85 percent. 6) And automatic control is adopted, a PLC control cabinet and an HMI interface are configured, so that parameter setting of a factory is facilitated. 7) The ammonia product sets up the buffer tank, guarantees that ammonia pressure is stable. When the system fails for a short time, ammonia can be continuously and stably supplied. 8) The system integrates various interlock, alarm procedures, including: tower kettle high-low liquid level interlocking, temperature interlocking, flow interlocking and the like. 9) The system sets various security measures including: overhead safety valves, surge tank safety valves, pump outlet safety valves, etc. 10 All automatic integration, each menu is built in the program, the system can meet the one-key start, and the labor intensity of workers is reduced. 11 The system has high safety. 12 An ammonia water preheater is arranged, the heat of the discharged material at the bottom of the tower exchanges heat with the cold ammonia water fed in, the waste heat is recovered, the whole energy consumption is reduced, and the energy-saving ammonia distillation system belongs to an energy-saving ammonia distillation system. 13 The system is highly integrated, modular delivery is adopted, the whole system is an independent prying block, and steel frames, equipment, pipelines, instruments and platform stairs are all pryed blocks. The field installation workload is very small, and only the butt joint of the pipeline is needed.
Claims (5)
1. An energy-saving ammonia water distillation ammonia production device special for denitration, which is characterized in that: the device comprises a concentrated ammonia water storage tank (1), wherein the output end of the concentrated ammonia water storage tank (1) is connected to a concentrated ammonia water preheater (2), a safety cut-off valve I (3) and a concentrated ammonia water delivery pump (4) are sequentially arranged on a connecting pipeline of the concentrated ammonia water storage tank (1) and the concentrated ammonia water preheater (2), the output end I of the concentrated ammonia water preheater (2) is connected with a dilute ammonia water cooler (5), the output end II of the concentrated ammonia water preheater (2) is connected with an ammonia distillation tower (6), the dilute ammonia water cooler (5) is connected to a dilute ammonia water storage tank (7), a dilute ammonia water flowmeter (8) and a dilute ammonia water delivery pump (9) are arranged on a connecting pipeline of the dilute ammonia water storage tank (7), a tower top separator (10) is arranged on the tower top of the ammonia distillation tower (6), the tower top separator (10) is connected with an ammonia buffer tank (11), the output end II of the concentrated ammonia buffer tank (11) is connected to a denitration system (12), a plurality of ammonia water flow rate control valves (16) and a plurality of ammonia water flow rate control valves (16) are sequentially arranged on the connecting pipeline of the ammonia buffer tank (12) and the ammonia buffer tank (16), the reboiling heater (16) is connected with the output port III of the concentrated ammonia water preheater (2), a steam flow regulating valve (17) is arranged at the input end of the reboiling heater (16), and a steam drainage system (18) is arranged at the output end of the reboiling heater (16).
2. The energy-saving ammonia water distillation ammonia production device special for denitration according to claim 1, wherein: the denitration system (12) comprises a denitration ammonia injection grid (1201).
3. The energy-saving ammonia water distillation ammonia production device special for denitration according to claim 1, wherein: and a concentrated ammonia water flowmeter (19) is arranged on a pipeline connected with the concentrated ammonia water preheater (2) and the ammonia distillation tower (6).
4. The energy-saving ammonia water distillation ammonia production device special for denitration according to claim 1, wherein: the bottom end of the ammonia still (6) is provided with a tower kettle liquid level controller (20) and a tower kettle temperature controller (21).
5. The energy-saving ammonia water distillation ammonia production device special for denitration according to claim 1, wherein: the ammonia buffer tank (11) is provided with a pressure sensor (22), a liquid level sensor (23) and a safety valve (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224828.3A CN108264060B (en) | 2018-03-19 | 2018-03-19 | Energy-saving ammonia water distillation ammonia production device special for denitration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224828.3A CN108264060B (en) | 2018-03-19 | 2018-03-19 | Energy-saving ammonia water distillation ammonia production device special for denitration |
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| CN108264060A CN108264060A (en) | 2018-07-10 |
| CN108264060B true CN108264060B (en) | 2023-12-29 |
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| CN110963507A (en) * | 2019-12-30 | 2020-04-07 | 北京华电光大环境股份有限公司 | Ammonia water ammonia production system and process for coke oven flue gas denitration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001064014A (en) * | 1999-08-24 | 2001-03-13 | Toshiba Corp | Ammonia recovering facility for power generation plant |
| CN206126864U (en) * | 2016-10-15 | 2017-04-26 | 上海国际化建工程咨询有限公司 | It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water |
| CN107413194A (en) * | 2016-12-29 | 2017-12-01 | 天津市创举科技股份有限公司 | Preparation method and equipment of concentrated ammonia water for desulfurization and denitrification |
| CN207046874U (en) * | 2017-07-19 | 2018-02-27 | 北京中科康仑环境科技研究院有限公司 | A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water |
| CN208008471U (en) * | 2018-03-19 | 2018-10-26 | 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 |
-
2018
- 2018-03-19 CN CN201810224828.3A patent/CN108264060B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001064014A (en) * | 1999-08-24 | 2001-03-13 | Toshiba Corp | Ammonia recovering facility for power generation plant |
| CN206126864U (en) * | 2016-10-15 | 2017-04-26 | 上海国际化建工程咨询有限公司 | It prepares device of pure liquid ammonia to contain ammonia transform lime set waste water |
| CN107413194A (en) * | 2016-12-29 | 2017-12-01 | 天津市创举科技股份有限公司 | Preparation method and equipment of concentrated ammonia water for desulfurization and denitrification |
| CN207046874U (en) * | 2017-07-19 | 2018-02-27 | 北京中科康仑环境科技研究院有限公司 | A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water |
| CN208008471U (en) * | 2018-03-19 | 2018-10-26 | 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 |
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Address after: 200000 Zone C, room 208, No. 1, Lane 1505, LIANHANG Road, Minhang District, Shanghai Applicant after: SHANGHAI ZOSUM ENVIRONMENT Co.,Ltd. Address before: Room E101, building 4, No. 27, Changda Road, Minhang District, Shanghai 201112 Applicant before: SHANGHAI ZOSUM ENGINEERING Co.,Ltd. |
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