CN203812122U - Monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy - Google Patents
Monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy Download PDFInfo
- Publication number
- CN203812122U CN203812122U CN201420213954.6U CN201420213954U CN203812122U CN 203812122 U CN203812122 U CN 203812122U CN 201420213954 U CN201420213954 U CN 201420213954U CN 203812122 U CN203812122 U CN 203812122U
- Authority
- CN
- China
- Prior art keywords
- ammonia still
- ammonia
- lift pump
- differential pressure
- transmitter
- 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.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 56
- 239000002351 wastewater Substances 0.000 title claims abstract description 37
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title abstract description 23
- 229910052761 rare earth metal Inorganic materials 0.000 title abstract description 10
- 150000002910 rare earth metals Chemical class 0.000 title abstract description 10
- 238000005272 metallurgy Methods 0.000 title abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 208
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 105
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000004064 recycling Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 10
- 239000002826 coolant Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing And Monitoring For Control Systems (AREA)
Abstract
The utility model discloses a monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy. The system is characterized by comprising an ammonia still monitoring module, a steam monitoring module, and a cooler monitoring module. The ammonia still monitoring module is used to measure temperature and pressure in an ammonia still and ammonia concentration of wastewater on the bottom of the ammonia still. The steam monitoring module is connected with the ammonia still monitoring module, and is used to measure and adjust steam flow. The cooler monitoring module is connected with the ammonia still monitoring module, and is used to detect and control liquid level height of the cooler. Using the monitoring system, control of temperature, pressure, and liquid level in the ammonia still is realized.
Description
Technical field
The utility model relates to field of waste water treatment, relates in particular to a kind of supervisory system of Rare Earths smelting high ammonia-nitrogen wastewater recycling.
Background technology
Rare earth material is being brought into play indispensable key effect in emerging green energy resource technology of modern times, new and high technology and national defence system, as electric automobile, aerogenerator, illumination and demonstration, computer hard disc driver, mobile communication, missile guidance, intelligent bomb.Claim in the world these technology for " rare earth dependence technology ", do not have other materials to substitute, therefore rare earth material become the technology of realization, the indispensable strategic materials of rebuilding traditional industry.Rare-earth industry develops rapidly, and industry size constantly expands, but in fast-developing, also has many problems, as low in ecologic environment havoc, comprehensive utilization of resources degree etc.
Ammonia nitrogen is the major pollutants of rare earth metallurgy, and such waste water is the main waste water producing in rare-earth wet method metallurgical process, accounts for 60% ~ 70% of Rare Earth Enterprises waste water total amount, nearly all will produce ammonia nitrogen waste water as long as relate to rare-earth wet method metallurgy.But in high-concentration ammonia nitrogenous wastewater recovery process, supervisory system relates to the control to steam flow, the control of ammonia still stripping processing, the control of condensed fluid return-flow system, wherein the processing controls of ammonia still stripping is particularly important, need to monitor temperature, pressure and liquid level in ammonia still to guarantee ammonia still process effect and vapor liquid equilibrium.Thereby need a supervisory system to set up control module according to the technological parameter of high-concentration ammonia nitrogenous wastewater recovery process and realize the robotization control to whole recovery process.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of Rare Earths to smelt the supervisory system of high ammonia-nitrogen wastewater recycling, can realize the control to temperature, pressure and liquid level in ammonia still.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of Rare Earths to smelt the supervisory system of high ammonia-nitrogen wastewater recycling, comprising:
Ammonia still monitoring modular, for measuring ammonia nitrogen in waste water concentration at the bottom of temperature, pressure and the described ammonia still tower in ammonia still;
Steam monitoring module, is connected with described ammonia still monitoring modular, for measuring and adjust steam flow;
Refrigeratory monitoring module, is connected with described ammonia still monitoring modular, for detection of with control the liquid level of refrigeratory.
As the improvement of such scheme, described ammonia still monitoring modular comprises that temperature transmitter, differential pressure transmitter and ammonia nitrogen detect meter online;
On described ammonia still, be provided with 4 described temperature transmitters, comprise the first temperature transmitter, the second temperature transmitter, the 3rd temperature transmitter and the 4th temperature transmitter, at the bottom of described the first temperature transmitter and described the 4th temperature transmitter are separately positioned on the tower top and tower of described ammonia still, described the second temperature transmitter and described the 3rd temperature transmitter are arranged on the tower body of described ammonia still;
On described ammonia still, be provided with 4 described differential pressure transmitters, comprise the first differential pressure transmitter, the second differential pressure transmitter, the 3rd differential pressure transmitter and the 4th differential pressure transmitter, at the bottom of described the first differential pressure transmitter and described the 4th differential pressure transmitter are separately positioned on the tower top and tower of described ammonia still, described the second differential pressure transmitter and described the 3rd differential pressure transmitter are arranged on the tower body of described ammonia still;
Described ammonia nitrogen detect online meter be arranged on described ammonia still tower at the bottom of.
As the improvement of such scheme, described ammonia still monitoring modular also comprises the first fluid level controller, the first frequency converter and the first lift pump, described the first fluid level controller is arranged on described ammonia still and with described the first frequency converter and is connected, described the first frequency converter is connected with described the first lift pump, and described the first lift pump is located on the pipeline that waste water enters described ammonia still.
As the improvement of such scheme, described steam monitoring module comprises steam-flow meter and the steam electric control valve be located on jet chimney.
As the improvement of such scheme, described steam monitoring module also comprises the 5th temperature transmitter and the 5th differential pressure transmitter be located on described jet chimney.
As the improvement of such scheme, described refrigeratory monitoring module comprises the second fluid level controller, the second lift pump and the 3rd lift pump, and described the second fluid level controller is connected with described the 3rd lift pump with described the second lift pump respectively;
Described the second lift pump and described the 3rd lift pump are located at refrigeratory bottom, and described the second lift pump is connected with cool cycles pipeline, and described the 3rd lift pump is connected with described ammonia still.
As the improvement of such scheme, the supervisory system that described Rare Earths is smelted high ammonia-nitrogen wastewater recycling also comprises PLC controller, and described PLC controller is connected with described the 3rd temperature transmitter, described the 3rd lift pump and described steam electric control valve respectively.
Implement the utility model embodiment, there is following beneficial effect:
The utility model is by interconnecting between ammonia still monitoring modular and steam monitoring module, refrigeratory monitoring module, can be to steam flow, temperature, pressure and liquid level in ammonia still, the technical parameters such as refrigeratory liquid level are monitored, can reflect in real time the situation of vapor liquid equilibrium in ammonia still process process, technician can record technological parameter according to supervisory system described in the utility model and adjust in time the valve on each pipeline, to guarantee ammonia still process effect, is convenient to process emergency case and fixes a breakdown.In addition, the utility model is also provided with PLC controller, by input control parameter in PLC controller to replace technician's manual control, thereby realize the automatic control of temperature, pressure and liquid level in ammonia still.
Brief description of the drawings
Fig. 1 is that a kind of Rare Earths of the utility model is smelted the structural representation of the supervisory system of high ammonia-nitrogen wastewater recycling;
Fig. 2 is that a kind of Rare Earths of the utility model is smelted the another structural representation of the supervisory system of high ammonia-nitrogen wastewater recycling.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of Rare Earths to smelt the supervisory system of high ammonia-nitrogen wastewater recycling, comprising:
Ammonia still monitoring modular 1, for measuring ammonia nitrogen in waste water concentration at the bottom of temperature, pressure and ammonia still 4 towers in ammonia still 4;
Steam monitoring module 2, is connected with described ammonia still monitoring modular 1, for measuring and adjust steam flow;
Refrigeratory monitoring module 3, is connected with described ammonia still monitoring modular 1, for detection of with control the liquid level of refrigeratory 13.
In order to strengthen the control in ammonia still process process, the utility model passes through ammonia still monitoring modular 1, steam monitoring module 2 and refrigeratory monitoring module 3 to steam flow, temperature, pressure and liquid level in ammonia still 4, refrigeratory 13 liquid levels are monitored, can reflect in real time the technological parameter in ammonia still process process, technician can record technological parameter according to supervisory system described in the utility model and adjust in time the valve on each pipeline, to guarantee ammonia still process effect, is convenient to process emergency case and fixes a breakdown.
Preferably, described ammonia still monitoring modular 1 comprises that temperature transmitter, differential pressure transmitter and ammonia nitrogen detect meter 7 online;
On ammonia still 4, be provided with 4 described temperature transmitters, comprise the first temperature transmitter 51, the second temperature transmitter 52, the 3rd temperature transmitter 53 and the 4th temperature transmitter 54, at the bottom of described the first temperature transmitter 51 and described the 4th temperature transmitter 54 are separately positioned on the tower top and tower of ammonia still 4, described the second temperature transmitter 52 and described the 3rd temperature transmitter 53 are arranged on the tower body of ammonia still 4;
On ammonia still 4, be provided with 4 described differential pressure transmitters, comprise the first differential pressure transmitter 61, the second differential pressure transmitter 62, the 3rd differential pressure transmitter 63 and the 4th differential pressure transmitter 64, at the bottom of described the first differential pressure transmitter 61 and described the 4th differential pressure transmitter 64 are separately positioned on the tower top and tower of ammonia still 4, described the second differential pressure transmitter 62 and described the 3rd differential pressure transmitter 63 are arranged on the tower body of ammonia still 4;
Described ammonia nitrogen detect online meter 7 be arranged on ammonia still 4 towers at the bottom of.
Have closely and contact based on ammonia still process effect and the interior temperature of ammonia still 4, pressure, therefore ammonia still monitoring modular 1 described in the utility model is by being separately positioned on 4 temperature transmitters and 4 differential pressure transmitters at the bottom of tower top, tower body and the tower of ammonia still 4, can monitor out the situation of whole ammonia still 4 interior temperature and pressures, be convenient to technician and understand the vapor liquid equilibrium of ammonia still 4.
It should be noted that, the effect of the first temperature transmitter 51 is monitoring temperatures of ammonia still 4 tower tops, acting as of the second temperature transmitter 52 is the temperature detecting in ammonia still 4, acting as of the 3rd temperature transmitter 53 is the temperature detecting in ammonia still 4, and realize the temperature thermostatic control in ammonia still 4, the effect of the 4th temperature transmitter 54 is the temperature at the bottom of detection ammonia still 4 towers, monitoring ammonia still 4 leaving water temperatures.
In the time that the 3rd temperature transmitter 53 detects temperature in tower higher than the preset temperature of 95 DEG C ~ 103 DEG C, can make the 3rd lift pump 15 accelerate to pump in refrigeratory 13 liquid coolant of 20 ~ 50 DEG C, thereby adjust steam electric control valve 10 simultaneously and reduce steam flow and reach the object of cooling; On the contrary, in the time that the 3rd temperature transmitter 53 detects in tower that temperature is higher than preset temperature, can make the 3rd lift pump 15 slow down or stop pumping into liquid coolant, increase steam flow and reach the object of temperature in rising tower thereby adjust steam electric control valve 10 simultaneously.
When described ammonia nitrogen detects online meter 7 and records at the bottom of tower ammonia nitrogen in waste water concentration≤100ppm, can open the solenoid valve of drainage pipeline at the bottom of tower, waste water at the bottom of discharge tower.
Preferably, the supervisory system that described Rare Earths is smelted high ammonia-nitrogen wastewater recycling also comprises PLC controller, and described PLC controller is connected with described the 3rd temperature transmitter 53, described the 3rd lift pump 15 and described steam electric control valve 10 respectively.Above-mentioned to the temperature control of ammonia still 4 can by input control parameter in PLC controller to replace technician's manual control, thereby realize the automatic control of the interior temperature of ammonia still 4, pressure and liquid level.
Process in real time for technician in order to observe waste water vaporization situation, ensure wastewater treatment precision, the effect that the utility model is measured ammonia still 4 interior differential pressures by the first differential pressure transmitter 61 and the 4th differential pressure transmitter 64 is the pressure differential monitoring to ammonia still 4 inside, if when pressure differential reaches certain numerical value, drive steam regulating valve door to close, in case ammonia still 4 excess Temperatures.
Preferably, described ammonia still monitoring modular 1 also comprises the first fluid level controller 8, the first frequency converter and the first lift pump, described the first fluid level controller 8 is arranged on ammonia still 4 and with described the first frequency converter and is connected, described the first frequency converter is connected with described the first lift pump, and described the first lift pump is located on the pipeline that waste water enters ammonia still 4.
It should be noted that, fluid level controller refers to by the method for mechanical type or electronic type and carries out the control of two position, the first fluid level controller 8 that the utility model utilization is arranged on ammonia still 4 is controlled the liquid level in ammonia still 4, controlling the first frequency converter when liquid level during lower than parameter preset revs up the first lift pump, increase wastewater flow, guarantee that ammonia still 4 level stabilities are within the scope of 18 ~ 22cm, thereby realize semi-automation or full-automatic liquid level control.
Preferably, described steam monitoring module 2 comprises steam-flow meter 9 and the steam electric control valve 10 be located on jet chimney.
It should be noted that, the steam flow that steam-flow meter 9 passes through for monitoring jet chimney, the size of flow can be controlled by steam electric control valve 10.
Preferably, described steam monitoring module 2 also comprises the 5th temperature transmitter 11 and the 5th differential pressure transmitter 12 be located on jet chimney.
The 5th temperature transmitter 11 and the 5th differential pressure transmitter 12 can be monitored the temperature and pressure that passes into steam in turret, ensure that in jet chimney, steam meets technological requirement.
Preferably, described refrigeratory monitoring module 3 comprises the second fluid level controller, the second lift pump 14 and the 3rd lift pump 15, and described the second fluid level controller is connected with described the 3rd lift pump 15 with described the second lift pump 14 respectively;
Described the second lift pump 14 and described the 3rd lift pump 15 are located at refrigeratory 13 bottoms, and described the second lift pump 14 is connected with cool cycles pipeline, and described the 3rd lift pump 15 is connected with described ammonia still 4.
It should be noted that, refrigeratory 13 is collected the low concentration ammonia solution of discharging from turret dephlegmator 16, after cooling processing, make ammonia solution temperature be down to 20 ~ 40 DEG C, this ammonia solution liquid coolant part can be used as hydronic low-temperature receiver, after the strong aqua condenser 17 of flowing through, waste water condenser 18, is back to refrigeratory 13; Liquid coolant another part is back in ammonia still 4, the further ammonia still process concentrate of liquid coolant, and can be used for controlling temperature in ammonia still 4 towers.
Refrigeratory monitoring module 3 described in the utility model is provided with the second fluid level controller in refrigeratory 13, when the liquid level that detects refrigeratory 13 is during higher than parameter preset, open the solenoid valve being connected with the second lift pump 14, utilize the second lift pump 14 that the liquid coolant in refrigeratory 13 is delivered to circulating line; In the time that the 3rd temperature transmitter 53 of ammonia still 4 detects in tower that temperature goes beyond the scope, open the solenoid valve being connected with the 3rd lift pump 15, backflow liquid coolant is to reach the effect of cooling.
In sum, implement the utility model embodiment, there is following beneficial effect:
The utility model is by interconnecting between ammonia still monitoring modular 1 and steam monitoring module 2, refrigeratory monitoring module 3, can be to steam flow, temperature, pressure and liquid level in ammonia still 4, the technical parameters such as refrigeratory 13 liquid levels are monitored, can reflect in real time the situation of vapor liquid equilibrium in ammonia still process process, technician can record technological parameter according to supervisory system described in the utility model and adjust in time the valve on each pipeline, to guarantee ammonia still process effect, is convenient to process emergency case and fixes a breakdown.In addition, the utility model is also provided with PLC controller, by input control parameter in PLC controller to replace technician's manual control, thereby realize the automatic control of the interior temperature of ammonia still 4, pressure and liquid level.
Last institute should be noted that; above embodiment is the restriction in order to the technical solution of the utility model to be described but not to the utility model protection domain only; although the utility model is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (7)
1. Rare Earths is smelted a supervisory system for high ammonia-nitrogen wastewater recycling, it is characterized in that, comprising:
Ammonia still monitoring modular, for measuring ammonia nitrogen in waste water concentration at the bottom of temperature, pressure and the described ammonia still tower in ammonia still;
Steam monitoring module, is connected with described ammonia still monitoring modular, for measuring and adjust steam flow;
Refrigeratory monitoring module, is connected with described ammonia still monitoring modular, for detection of with control the liquid level of refrigeratory.
2. the supervisory system that Rare Earths is smelted high ammonia-nitrogen wastewater recycling as claimed in claim 1, is characterized in that, described ammonia still monitoring modular comprises that temperature transmitter, differential pressure transmitter and ammonia nitrogen detect meter online;
On described ammonia still, be provided with 4 described temperature transmitters, comprise the first temperature transmitter, the second temperature transmitter, the 3rd temperature transmitter and the 4th temperature transmitter, at the bottom of described the first temperature transmitter and described the 4th temperature transmitter are separately positioned on the tower top and tower of described ammonia still, described the second temperature transmitter and described the 3rd temperature transmitter are arranged on the tower body of described ammonia still;
On described ammonia still, be provided with 4 described differential pressure transmitters, comprise the first differential pressure transmitter, the second differential pressure transmitter, the 3rd differential pressure transmitter and the 4th differential pressure transmitter, at the bottom of described the first differential pressure transmitter and described the 4th differential pressure transmitter are separately positioned on the tower top and tower of described ammonia still, described the second differential pressure transmitter and described the 3rd differential pressure transmitter are arranged on the tower body of described ammonia still;
Described ammonia nitrogen detect online meter be arranged on described ammonia still tower at the bottom of.
3. the supervisory system that Rare Earths is smelted high ammonia-nitrogen wastewater recycling as claimed in claim 2, it is characterized in that, described ammonia still monitoring modular also comprises the first fluid level controller, the first frequency converter and the first lift pump, described the first fluid level controller is arranged on described ammonia still and with described the first frequency converter and is connected, described the first frequency converter is connected with described the first lift pump, and described the first lift pump is located on the pipeline that waste water enters described ammonia still.
4. the supervisory system that Rare Earths is smelted high ammonia-nitrogen wastewater recycling as claimed in claim 2, is characterized in that, described steam monitoring module comprises steam-flow meter and the steam electric control valve be located on jet chimney.
5. the supervisory system that Rare Earths is smelted high ammonia-nitrogen wastewater recycling as claimed in claim 4, is characterized in that, described steam monitoring module also comprises the 5th temperature transmitter and the 5th differential pressure transmitter be located on described jet chimney.
6. the supervisory system that Rare Earths is smelted high ammonia-nitrogen wastewater recycling as claimed in claim 4, it is characterized in that, described refrigeratory monitoring module comprises the second fluid level controller, the second lift pump and the 3rd lift pump, and described the second fluid level controller is connected with described the 3rd lift pump with described the second lift pump respectively;
Described the second lift pump and described the 3rd lift pump are located at refrigeratory bottom, and described the second lift pump is connected with cool cycles pipeline, and described the 3rd lift pump is connected with described ammonia still.
7. the supervisory system that Rare Earths is smelted high ammonia-nitrogen wastewater recycling as claimed in claim 6, it is characterized in that, the supervisory system that described Rare Earths is smelted high ammonia-nitrogen wastewater recycling also comprises PLC controller, and described PLC controller is connected with described the 3rd temperature transmitter, described the 3rd lift pump and described steam electric control valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213954.6U CN203812122U (en) | 2014-04-29 | 2014-04-29 | Monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213954.6U CN203812122U (en) | 2014-04-29 | 2014-04-29 | Monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812122U true CN203812122U (en) | 2014-09-03 |
Family
ID=51450850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420213954.6U Expired - Fee Related CN203812122U (en) | 2014-04-29 | 2014-04-29 | Monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979031A (en) * | 2021-02-04 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Operation method for controlling ammonia nitrogen content of IGCC gasification wastewater |
| CN114455686A (en) * | 2021-12-30 | 2022-05-10 | 宏雷机械设备(南通)有限公司 | Ammonia nitrogen recovery equipment based on gas stratification and use method thereof |
-
2014
- 2014-04-29 CN CN201420213954.6U patent/CN203812122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979031A (en) * | 2021-02-04 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Operation method for controlling ammonia nitrogen content of IGCC gasification wastewater |
| CN114455686A (en) * | 2021-12-30 | 2022-05-10 | 宏雷机械设备(南通)有限公司 | Ammonia nitrogen recovery equipment based on gas stratification and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103173593B (en) | Molten steel vacuum refining system based on mechanical pump group | |
| CN203812122U (en) | Monitoring system for high ammonia-nitrogen wastewater resource utilization in wet process rare earth metallurgy | |
| CN102767968A (en) | Quenching furnace waste heat recovery system and its control method | |
| CN104613703A (en) | Cooling water circulation system and control method | |
| CN103991996B (en) | A kind of Rare Earths smelts the supervisory system of high ammonia-nitrogen wastewater recycling | |
| CN104266840A (en) | Deep thermal shock testing device of heavy-duty engine | |
| CN205351913U (en) | Heat exchanger cooling water circulation utilizes system in petroleum engineering processing | |
| CN202582360U (en) | Constant-temperature and constant-pressure and constant-liquid-level energy-saving type cooling water control system | |
| CN202305244U (en) | System for testing cooling and heating capacity of water source heat pump unit | |
| CN103882186B (en) | A kind of RH refining furnace vacuum extractor and using method thereof | |
| CN203964714U (en) | A kind of classification heat exchanger | |
| CN103131830A (en) | Vacuum oil quenching furnace quenching cooling control system | |
| CN204166412U (en) | Automatic constant-temperature control system | |
| CN103738616B (en) | A kind of using method of electric ultra-high pressure oil intelligent vacuum storage device | |
| CN206219821U (en) | Dyeing machine cylinder two-stage cooling system | |
| CN205505779U (en) | Liquid level holdout device at bottom of tower | |
| CN203807512U (en) | Vacuum-pumping device of RH refining furnace | |
| CN204134244U (en) | A kind of production of resins distillation equipment | |
| CN203586795U (en) | High and lower temperature furnace | |
| CN202530124U (en) | Flue gas waste heat utilization system for annealing furnace | |
| CN203772563U (en) | Heat exchanging device | |
| CN203810698U (en) | Heat recovering system | |
| CN207178169U (en) | A kind of emergent oil pumping device of conduction oil | |
| CN204064096U (en) | A kind of liquid-circulating control system of the container that communicates | |
| CN219346421U (en) | Control system of heat storage and heat exchange device of fluctuation steam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528500 Yangmei West District, Cangjiang Industrial Park, Gaoming District, Foshan City, Guangdong Province Patentee after: Guangdong xintailong Environmental Protection Group Co.,Ltd. Address before: 528500 Yangmei West District, Cangjiang Industrial Park, Gaoming District, Foshan City, Guangdong Province Patentee before: FOSHAN XINTAILONG ENVIRONMENTAL PROTECTION EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |