CN207259164U - A kind of revolving bed ammonia recovery unit - Google Patents
A kind of revolving bed ammonia recovery unit Download PDFInfo
- Publication number
- CN207259164U CN207259164U CN201721272818.4U CN201721272818U CN207259164U CN 207259164 U CN207259164 U CN 207259164U CN 201721272818 U CN201721272818 U CN 201721272818U CN 207259164 U CN207259164 U CN 207259164U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- pipeline
- separates out
- scrubber
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 335
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 165
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000908 ammonium hydroxide Substances 0.000 claims abstract description 19
- 230000008676 import Effects 0.000 claims abstract description 18
- 238000001556 precipitation Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000003860 storage Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 36
- 239000002699 waste material Substances 0.000 claims description 19
- 238000010992 reflux Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- 239000000945 filler Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000005915 ammonolysis reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model belongs to a kind of revolving bed ammonia recovery unit, including ammonia-containing exhaust pipeline, clean waterpipe, ammonia-containing exhaust pipeline is connected with the inlet exhaust gas of ammonia scrubber lower part, cleaning waterpipe is connected with the clean water inlet on ammonia scrubber top, ammonia scrubber is internally provided with ammonia scrubber packed bed, narrow meshed water distributor pipeline is equipped with the top of ammonia scrubber packed bed, pipeline is sent outside with purified gas and is connected in the outlet of ammonia scrubber top gas, the ammonia import that the ammonium hydroxide outlet of ammonia scrubber bottom separates out device with ammonia is connected, ammonia separates out device and is internally provided with the ammonia distributor being connected with ammonia import, the lower part of ammonia distributor is equipped with ammonia and separates out device packed bed, the top that ammonia separates out device packed bed is equipped with heat exchanger in ammonia precipitation device, the tube side outlet that ammonia separates out heat exchanger in device is connected by the shell side of the second heat exchanger with liquid ammonia storage tank.The utility model has the advantages that simple in structure, technological design is reasonable, water content consumption is few and controllable, saving energy expenditure and equipment are corrosion resistant.
Description
Technical field
The utility model belongs to recovering ammonia technique field, and in particular to a kind of revolving bed ammonia recovery unit.
Background technology
Ammonia is one of typical poisonous and harmful industrial gaseous pollutant, and a large amount of industrial tail gas containing ammonia are directly discharged into air, no
The loss of synthesis ammonolysis product is only caused, and is degrading the living environment of people.With country to environmental protection pay attention to day by day, mostly
Number enterprise will form low concentration ammonium hydroxide after recovery ammonia, but need to consume substantial amounts of water during forming ammonium hydroxide, and water consumption is not
Can control；In addition there are Some Enterprises that ammonium hydroxide is converted to liquefied ammonia through ammonia distillation process, but process steam consumption is high, and power consumption is also big,
And tower tray seriously corroded.
Utility model content
The purpose of the utility model is to overcome in the prior art the defects of, and provide a kind of simple in structure, technological design
Rationally, water content consumption is few and controllable, saves energy expenditure and a kind of corrosion resistant revolving bed ammonia recovery unit of equipment.
What the purpose of this utility model was realized in：Including ammonia-containing exhaust pipeline, cleaning waterpipe, the ammonia-containing exhaust
Pipeline is connected with the inlet exhaust gas of ammonia scrubber lower part, cleans waterpipe and the clean water inlet phase on ammonia scrubber top
Even, ammonia scrubber is internally provided with ammonia scrubber packed bed, and the top of ammonia scrubber packed bed is equipped with narrow meshed water
Distributor pipeline, the annular liquid distributor with nozzle is communicated with water distributor pipeline, and the middle part of water distributor pipeline is equipped with annular
Horizontal water distributor pipeline, horizontal water distributor pipeline be arranged on ammonia scrubber electric machine main shaft and ammonia scrubber packed bed it
Between, offer apopore on the outside of horizontal water distributor pipeline；Gas vent at the top of ammonia scrubber sends pipe outside with purified gas
Road is connected, and the ammonium hydroxide outlet of ammonia scrubber bottom is connected by the tube side of First Heat Exchanger with the ammonia import of ammonia precipitation device, ammonia
Separate out device and be internally provided with the ammonia distributor being connected with ammonia import, the lower part of ammonia distributor is equipped with ammonia and separates out device packed bed, and ammonia separates out
The top of device packed bed is equipped with ammonia and separates out heat exchanger in device, and the tube side outlet that ammonia separates out heat exchanger in device passes through the second heat exchanger
Shell side is connected with liquid ammonia storage tank；The bottom that ammonia separates out device is equipped with ammonia precipitation device waste liquid outlet and the outlet of ammonia precipitation device ammonium hydroxide, ammonia analysis
Go out device waste liquid outlet and send pipeline outside with waste liquid by the shell side of First Heat Exchanger to be connected, ammonia separates out the outlet of device ammonium hydroxide and passes through reboiler
The gas-liquid refluxing opening that separates out in the middle part of device of tube side and ammonia be connected；The shell side import of the reboiler is connected with jet chimney, then boils
The shell-side outlet of device is connected with condensate liquid pipeline；Circulate water supply pipeline and separate out the shell side import of heat exchanger and the in device with ammonia respectively
The tube side import of two heat exchangers is connected, ammonia separate out device in heat exchanger shell-side outlet and the second heat exchanger tube side outlet respectively with
Circulating backwater pipeline is connected.
Preferably, the horizontal water distributor conduit upper is tubular structure, and lower part is ring-shaped cavity structure；Ring-shaped cavity
The outside of structure is equipped with apopore.
The utility model have it is simple in structure, technological design is reasonable, water content consumption is few and it is controllable, save energy expenditure and
The corrosion resistant advantage of equipment.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the position relationship knot of the utility model water distributor pipeline, annular liquid distributor and horizontal water distributor pipeline
Structure schematic diagram.
Embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, existing control brief description of the drawings
Specific embodiment of the present utility model, in the various figures identical label represent identical component.To make simplified form, in each figure
Only schematically show with the relevant part of utility model, they do not represent its practical structures as product.
As shown in Figure 1, 2, the utility model is to include ammonia-containing exhaust pipeline 1, cleaning waterpipe 2, the ammonia-containing exhaust pipe
Road 1 is connected with the inlet exhaust gas of 3 lower part of ammonia scrubber, cleans waterpipe 2 and the clean water inlet phase on 3 top of ammonia scrubber
Connect, ammonia scrubber 3 is internally provided with ammonia scrubber packed bed 4, and the top of ammonia scrubber packed bed 4 is equipped with narrow meshed
Water distributor pipeline 21, is communicated with the annular liquid distributor 5 with nozzle 6 on water distributor pipeline 21, in water distributor pipeline 21
Portion is equipped with the horizontal water distributor pipeline 22 of annular, and horizontal water distributor pipeline 22 is arranged on 3 electric machine main shaft of ammonia scrubber and ammonia
Between aspiration device packed bed 4, the outside of horizontal water distributor pipeline 22 offers apopore；The gas at the top of ammonia scrubber 3
Body outlet sends pipeline 7 outside with purified gas and is connected, the ammonium hydroxide outlet of 3 bottom of ammonia scrubber pass through First Heat Exchanger 8 tube side and
The ammonia import that ammonia separates out device 9 is connected, and ammonia separates out device 9 and is internally provided with the ammonia distributor 10 being connected with ammonia import, ammonia distributor 10
Lower part is equipped with ammonia and separates out device packed bed 11, and the top that ammonia separates out device packed bed 11 is equipped with heat exchanger 12 in ammonia precipitation device, and ammonia separates out
The tube side outlet of heat exchanger 12 is connected by the shell side of the second heat exchanger 13 with liquid ammonia storage tank 14 in device；Ammonia separates out the bottom of device 9
Device waste liquid outlet is separated out equipped with ammonia and ammonia separates out the outlet of device ammonium hydroxide, and ammonia separates out shell side of the device waste liquid outlet by First Heat Exchanger 8
Pipeline 15 is sent outside with waste liquid to be connected, ammonia separates out the gas-liquid that the outlet of device ammonium hydroxide separates out the middle part of device 9 by the tube side of reboiler 16 with ammonia
Refluxing opening is connected；The shell side import of the reboiler 16 is connected with jet chimney 18, the shell-side outlet and condensate liquid of reboiler 16
Pipeline 19 is connected；Circulate water supply pipeline 17 and separate out the shell side import of heat exchanger 12 and the pipe of the second heat exchanger 13 in device with ammonia respectively
Journey import is connected, ammonia separate out device in heat exchanger 12 shell-side outlet and the second heat exchanger 13 tube side outlet respectively with circulating backwater
Pipeline 20 is connected.22 top of transverse direction water distributor pipeline is tubular structure, and lower part is ring-shaped cavity structure；Ring-shaped cavity knot
The outside of structure is equipped with apopore.
A kind of recovery method of revolving bed ammonia recovery unit, includes the following steps：
Step 1：Pass through tail containing ammonia from synthesis ammonia ammonia storehouse periodic off-gases and synthesis periodic off-gases pressure 2.0MPa, 30 DEG C of temperature
Feed channel 1 is sent to ammonia scrubber 3, and the volumetric concentration of the ammonia in ammonia-containing exhaust is 15%, flow 5000Nm3/h；
Step 2：Flowed up into the ammonia-containing exhaust in ammonia scrubber 3 in ammonia scrubber 3, clean water passes through
Clean waterpipe 2 by narrow meshed water distributor pipeline 21 to enter in annular liquid distributor 5, and sprayed downwards by nozzle 6, ring
Excessive clean water enters in the horizontal water distributor pipeline 22 with apopore in shape liquid distributor 5, passes through horizontal water distributor pipe
It is above-mentioned by nozzle 6, water distributor pipeline 21 in apopore transverse sprinkling clean water to ammonia scrubber packed bed 4 on road 22
The clean water that aperture and apopore come out flows downward with ammonia-containing exhaust in the interior adverse current of high-speed rotating ammonia scrubber packed bed 4
Absorb, clean water and the gas cross-flow flowed up absorb, and form ammonium hydroxide and purified gas, the purified gas pass through ammonia scrubber
The gas vent at 3 tops is sent pipeline 7 outside with purified gas and is recycled again into synthesis system, and the ammonium hydroxide is by ammonia scrubber
The ammonium hydroxide outlet of 3 bottoms and the tube side of First Heat Exchanger 8 enter ammonia and separate out in device 9；The stream of clean water in the cleaning waterpipe
Measure and be：4.0m3/ h, the volumetric concentration of the ammonia in the purified gas is 0.05%；The ammonia temperature separated out into ammonia in device 9
For：150℃；Filler in the ammonia scrubber packed bed 4 is one of Pall ring filler or net type filler；
Step 3：The ammonium hydroxide separated out into ammonia in device 9 carries out transverse sprinkling by ammonia distributor 10, and ammonium hydroxide is rotated in high speed
Ammonia separate out device packed bed 11 act on it is lower separate out ammonia and waste liquid, a waste liquid part separates out device waste liquid outlet by ammonia and enters first
The shell side of heat exchanger 8 exchanges heat, and the waste liquid after heat exchange is sent outside by waste liquid and arranged outside pipeline 15, and waste liquid another part by boiling again
The tube side of device 16 exchanges heat with the steam in 16 shell side of reboiler, and the gas-liquid mixture after heat exchange separates out the middle part of device 9 by ammonia
Gas-liquid refluxing opening enter ammonia separate out device 9 in；The 16 shell side import of reboiler is connected with jet chimney 18, in jet chimney 18
Saturated-steam temperature be：225 DEG C, flow：1.0t/h, the temperature of the tube side waste liquid by reboiler 16 is 210 DEG C, and
Mutually it is changed into gas-liquid mixture；Waste liquid temperature by 8 shell side of First Heat Exchanger is 205 DEG C, after the heat exchange of 8 shell side of First Heat Exchanger
Waste liquid temperature is 53 DEG C；The filler that ammonia is separated out in device packed bed 11 is one of Pall ring filler or net type filler；
Step 4：Into ammonia separate out the gas-liquid mixture at the middle part of device 9 with by the ammonium hydroxide of ammonia distributor 10 mix and after again
It is secondary that device packed bed 11 is separated out by high-speed rotating ammonia, ammonia and waste liquid are separated out under the action of ammonia separates out device packed bed 11, is given up
Liquid downlink repeats the above steps three, and ammonia passes through ammonia and separates out the tube side of heat exchanger 12 in device separates out 12 shell side of heat exchanger in device with ammonia
Recirculated water exchange heat, after heat exchange into the second heat exchanger 13 shell side in；Circulating water temperature before the heat exchange is 30 DEG C,
Circulating water temperature after heat exchange is 60 DEG C；
Step 5：The shell side and the second heat exchanger for passing through the second heat exchanger 13 into the ammonia in 13 shell side of the second heat exchanger
Recirculated water in 13 tube sides exchanges heat, and phase transformation is carried out after heat exchange, is mutually changed into 40 DEG C of liquefied ammonia, and liquefied ammonia is stored up by pipeline into liquefied ammonia
In tank 14；The flow of the liquefied ammonia is 574kg/h, in liquefied ammonia the mass concentration of ammonia be 99.9%, the mass concentration of water be
0.1%.
Experimental example
By the device and recovery method of the utility model by taking the Ammonia Production device for producing 450000 tons per year as an example, use
The device of the utility model can save the investment for installing net ammonia device and ammonia steaming device, and can be by process simplification and dress
Put miniaturization；Ammonia recovery is brought up to 99.6% at the same time, liquefied ammonia purity reaches 99.9%, and can make clean water, steam
Consumption reduces.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term is " even in the description of the utility model
Connect ", " connected " etc. should be interpreted broadly, for example, it may be being fixedly connected, be integrally connected or be detachably connected；
It can also be the connection inside two elements；It can be directly connected, can also be indirectly connected by intermediary, for ability
For the those of ordinary skill in domain, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.On
Detailed description the illustrating only for the feasibility embodiment of the utility model of text, they are simultaneously not used to limitation originally
The protection domain of utility model, all equivalent implementations made without departing from the utility model skill spirit, change and transformation are equal
It should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of revolving bed ammonia recovery unit, including ammonia-containing exhaust pipeline (1), cleaning waterpipe (2), it is characterised in that：It is described
Ammonia-containing exhaust pipeline (1) is connected with the inlet exhaust gas of ammonia scrubber (3) lower part, cleaning waterpipe (2) and ammonia scrubber (3)
The clean water inlet on top is connected, and ammonia scrubber (3) is internally provided with ammonia scrubber packed bed (4), and ammonia scrubber is filled out
The top of material bed (4) is equipped with narrow meshed water distributor pipeline (21), is communicated with water distributor pipeline (21) with nozzle (6)
Annular liquid distributor (5), the middle part of water distributor pipeline (21) are equipped with horizontal water distributor pipeline (22), horizontal water distributor pipeline
(22) it is arranged between ammonia scrubber (3) electric machine main shaft and ammonia scrubber packed bed (4), horizontal water distributor pipeline (22)
Outside offer apopore；Gas vent at the top of ammonia scrubber (3) sends pipeline (7) outside with purified gas and is connected, and ammonia is inhaled
The ammonium hydroxide outlet for receiving device (3) bottom is connected by the tube side of First Heat Exchanger (8) with the ammonia import of ammonia precipitation device (9), and ammonia separates out
Device (9) is internally provided with the ammonia distributor (10) being connected with ammonia import, and the lower part of ammonia distributor (10) is equipped with ammonia and separates out device packed bed
(11), the top of ammonia precipitation device packed bed (11) is equipped with ammonia and separates out heat exchanger (12) in device, and ammonia separates out heat exchanger (12) in device
Tube side outlet is connected by the shell side of the second heat exchanger (13) with liquid ammonia storage tank (14)；Analysed equipped with ammonia the bottom that ammonia separates out device (9)
Go out device waste liquid outlet and ammonia separates out the outlet of device ammonium hydroxide, ammonia separates out shell side and waste liquid of the device waste liquid outlet by First Heat Exchanger (8)
Send pipeline (15) outside to be connected, ammonia separates out device ammonium hydroxide and exports the gas-liquid separated out by the tube side and ammonia of reboiler (16) in the middle part of device (9)
Refluxing opening is connected；The shell side import of the reboiler (16) is connected with jet chimney (18), the shell-side outlet of reboiler (16) with
Condensate liquid pipeline (19) is connected；Circulate the shell side import and second that water supply pipeline (17) separates out heat exchanger (12) in device with ammonia respectively
The tube side import of heat exchanger (13) is connected, and ammonia separates out the shell-side outlet of heat exchanger (12) and the tube side of the second heat exchanger (13) in device
Outlet is connected with circulating backwater pipeline (20) respectively.
A kind of 2. revolving bed ammonia recovery unit according to claim 1, it is characterised in that：The transverse direction water distributor pipeline
(22) top is tubular structure, and lower part is ring-shaped cavity structure；The outside of ring-shaped cavity structure is equipped with apopore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272818.4U CN207259164U (en) | 2017-09-22 | 2017-09-22 | A kind of revolving bed ammonia recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272818.4U CN207259164U (en) | 2017-09-22 | 2017-09-22 | A kind of revolving bed ammonia recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207259164U true CN207259164U (en) | 2018-04-20 |
Family
ID=61919949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721272818.4U Withdrawn - After Issue CN207259164U (en) | 2017-09-22 | 2017-09-22 | A kind of revolving bed ammonia recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207259164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651695A (en) * | 2017-09-22 | 2018-02-02 | 河南心连心化肥有限公司 | A kind of revolving bed ammonia recovery unit and recovery method |
-
2017
- 2017-09-22 CN CN201721272818.4U patent/CN207259164U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651695A (en) * | 2017-09-22 | 2018-02-02 | 河南心连心化肥有限公司 | A kind of revolving bed ammonia recovery unit and recovery method |
| CN107651695B (en) * | 2017-09-22 | 2023-11-17 | 河南心连心化学工业集团股份有限公司 | Rotary bed ammonia recovery device and recovery method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018103340A1 (en) | Water scrubber for high-efficiency removal of aerosol | |
| CN104829494B (en) | A kind of energy-saving carbamide production system and production technology thereof | |
| CN103223292A (en) | Ammonia process flue gas treatment method for acidic tail gas and device | |
| US10183865B2 (en) | Apparatus and combined process for carbon dioxide gas separation | |
| CN104014236A (en) | Smoke purifying and residual heat deep recycling integrated device | |
| CN209501225U (en) | Adsorption tower is used in high-pureness carbon dioxide production | |
| CN204166802U (en) | A kind of intermittent reaction synthetic operation actual training device | |
| CN102690689A (en) | Device and method for scrubbing and purifying coal gas | |
| CN203556247U (en) | Gas-phase washing tower | |
| CN102580504A (en) | Novel ammonia desulphurization absorption device | |
| CN203886407U (en) | Flue gas purification and deep afterheat recycling integrated device | |
| CN207259164U (en) | A kind of revolving bed ammonia recovery unit | |
| CN109647058A (en) | A kind of processing equipment of the baking tail gases of Hcl containing high concentration | |
| CN202876620U (en) | Energy-saving urea prilling tower dust purification and recovery device | |
| CN104495757A (en) | System for removing low-temperature thermal energy generated during adsorption of SO3 from sulfuric acid production device | |
| CN202506306U (en) | Novel ammonia process desulfurization absorption device | |
| CN210699440U (en) | Fountain clarification plant | |
| CN217015382U (en) | Ammonia gas recovery and purification system | |
| CN207546086U (en) | Waste gas purification apparatus in stainless steel slag treatment process | |
| CN207468391U (en) | A kind of system for spent lye processing | |
| CN105854563B (en) | A kind of chemical emission desulfurization treatment process absorbing ammonia process based on film | |
| CN107651695A (en) | A kind of revolving bed ammonia recovery unit and recovery method | |
| CN112892188B (en) | SO2Intelligent regulation and control system and method for preparing high-added-value products by absorbing byproducts | |
| CN213132603U (en) | Single-tower double-circulation desulfurizing tower | |
| CN204958633U (en) | A high -concentration ammonia nitrogen waste water treatment composite set for industrial wastewater treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 453731 Henan Xinxiang Economic Development Zone, Xinxiang City, Henan Province (Xiaoji Town) Patentee after: Henan Xinlianxin Chemical Industry Group Co.,Ltd. Address before: 453731 Henan Xinxiang Economic Development Zone Xiaoji Town Henan Xinlianxin Chemical Fertilizer Co., Ltd. Patentee before: HENAN XINLIANXIN FERTILIZER Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180420 Effective date of abandoning: 20231117 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180420 Effective date of abandoning: 20231117 |