CN110860193A - Ammonia mixing device for ammonia flue gas desulfurization oxidation tank and application - Google Patents
Ammonia mixing device for ammonia flue gas desulfurization oxidation tank and application Download PDFInfo
- Publication number
- CN110860193A CN110860193A CN201911306098.2A CN201911306098A CN110860193A CN 110860193 A CN110860193 A CN 110860193A CN 201911306098 A CN201911306098 A CN 201911306098A CN 110860193 A CN110860193 A CN 110860193A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- pipeline
- gas mixture
- ammonia gas
- oxidation tank
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention relates to an ammonia mixing device of an ammonia flue gas desulfurization oxidation tank, which comprises a pressure reducing valve, an ammonia mixed gas input pipeline, an ammonia mixed gas cooling spray water sleeve, an oxidation air pipeline, an ammonia mixed gas and oxidation air mixing pipeline and an ammonia mixed gas pipe network, wherein the ammonia mixed gas and oxidation air mixing pipeline is arranged along the vertical direction, the top of the ammonia mixed gas and oxidation air mixing pipeline is tightly communicated with the output end of the ammonia mixed gas input pipeline, the input end of the ammonia mixed gas input pipeline is tightly communicated with the ammonia mixed gas, the ammonia mixed gas input pipeline is connected with the pressure reducing valve, and the pressure reducing valve can reduce the pressure of the ammonia mixed gas in the ammonia mixed gas input pipeline. The device can effectively reduce the temperature of the ammonia gas mixture, reduce the pressure of the ammonia gas mixture, reduce the concentration of the ammonia gas below the explosion limit, and enable the ammonia gas mixture generated by the catalytic hydrolysis of the urea to meet the use requirements.
Description
Technical Field
The invention belongs to the technical field of environment-friendly equipment, and particularly relates to an ammonia mixing device of an ammonia flue gas desulfurization oxidation tank and application thereof.
Background
Among mainstream desulfurization technologies at home and abroad, the ammonia flue gas desulfurization technology is one of commercially applied desulfurization methods. The process can realize high-efficiency desulfurization and partial removal of nitrogen oxides in the flue gas, the byproduct is ammonium sulfate, the resource recycling is realized, no wastewater is discharged, and the wet flue gas desulfurization process is the most effective and environment-friendly wet flue gas desulfurization technology for controlling acid rain and sulfur dioxide pollution. Ammonia gas mixture generated by catalytic hydrolysis of urea can be used as one of the choices of the desulfurization absorbent, and can play a role of a desulfurizer by injecting the ammonia gas mixture into the oxidation tank.
The ammonia content of the ammonia gas mixture generated by the catalytic hydrolysis of the urea is about 37.5 percent (volume concentration), the temperature is 130-150 ℃, and the pressure is about 0.35-0.55 MPa. The explosion limit of ammonia is 15% -28%, and for safety, the ammonia concentration needs to be reduced below the lower explosion limit before the ammonia mixed gas is injected into the desulfurization system. Meanwhile, the high-temperature and high-pressure ammonia mixed gas is not beneficial to desulfurization. At present, the ammonia gas mixture generated by catalytic hydrolysis of urea is used as a desulfurizer for a few engineering applications, and a few data are introduced on how to reduce the ammonia gas concentration to below the explosion limit while reducing the temperature and pressure of the ammonia gas mixture.
Through searching, the following patent publications related to the patent application of the invention are found:
an ammonia flue gas desulfurization device (CN201516330U) comprises an absorption tower, an oxidation fan, a stirrer, a circulating pump, a slurry delivery pump, an ammonia tank, an evaporative crystallizer, a cyclone, a centrifugal machine, a dryer and a packaging machine. The absorption tower is a counter-flow type spraying absorption tower, the bottom of the absorption tower is an oxidation pond, and the upper part of the absorption tower is sequentially provided with two spraying layers and two demisters from bottom to top. The demister is provided with a spray water pipe layer to be responsible for blockage washing of the demister. The flue gas flows through two spraying layers from bottom to top after entering the desulfurizing tower to be cooled, washed and desulfurized, and the desulfurized clean flue gas is discharged out of the desulfurizing tower after being demisted by a demister. And (3) feeding the slurry at the bottom of the tower to an evaporative crystallizer outside the tower for evaporative crystallization, then preparing an ammonium sulfate solid product by ammonium sulfate liquid-solid separation and drying equipment, and feeding the centrifuged mother liquor back to the desulfurizing tower.
By contrast, the present patent application is substantially different from the above patent publications.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an ammonia mixing device for an ammonia flue gas desulfurization oxidation tank and application thereof.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an ammonia mixing device of an ammonia flue gas desulfurization oxidation tank comprises a pressure reducing valve, an ammonia mixture input pipeline, an ammonia mixture cooling spray water sleeve, an oxidation air pipeline, an ammonia mixture and oxidation air mixing pipeline and an ammonia mixture pipe network, wherein the ammonia mixture and oxidation air mixing pipeline is arranged along the vertical direction, the top of the ammonia mixture and oxidation air mixing pipeline is tightly communicated with the output end of the ammonia mixture input pipeline, the input end of the ammonia mixture input pipeline is tightly communicated with the ammonia mixture, the ammonia mixture input pipeline is connected with the pressure reducing valve, and the pressure reducing valve can reduce the pressure of the ammonia mixture in the ammonia mixture input pipeline;
the output end of the ammonia gas mixture cooling spray water sleeve is tightly communicated with the ammonia gas mixture and oxidizing air mixing pipeline below the output end of the ammonia gas mixture input pipeline, the output end of the ammonia gas mixture cooling spray water sleeve is arranged close to the output end of the ammonia gas mixture input pipeline, the input end of the ammonia gas mixture cooling spray water sleeve is tightly connected with a water diversion pipe, the water diversion pipe is connected with a process water, and the process water output by the ammonia gas mixture cooling spray water sleeve can cool the decompressed mixture output by the ammonia gas mixture input pipeline;
the output end of the oxidation air pipeline is tightly communicated with the lower part of the ammonia gas mixed gas and oxidation air mixed pipeline, the input end of the oxidation air pipeline is tightly connected with an air inlet pipe for oxidizing the slurry in the oxidation tank, and the air can reduce the content of the ammonia gas in the mixed gas to be below the lower limit of the explosion limit so as to enable the mixed gas to become safe and stable mixed gas;
the input end of the ammonia gas mixture pipe network is closely communicated with the bottom output end of the ammonia gas mixture and oxidation air mixing pipeline, the output pipeline of the ammonia gas mixture pipe network is arranged in the oxidation tank, and the ammonia gas mixture pipe network can uniformly convey the safe and stable mixture into the oxidation tank.
And the output end of the ammonia gas mixture cooling spraying water sleeve can atomize the process water into small liquid drops.
And a pipeline pipe clamp and a supporting beam are arranged in the oxidation tank, two ends of the supporting beam are arranged on the inner wall of the oxidation tank, an ammonia gas mixed gas pipe network in the oxidation tank is arranged on the supporting beam through the pipeline pipe clamp, and the ammonia gas mixed gas pipe network in the oxidation tank is arranged in the oxidation tank through the pipeline pipe clamp and the supporting beam.
And, the ammonia gas mixture trachea network includes main line and a plurality of lateral conduits, and the input of this main line closely is linked together the setting with ammonia gas mixture and oxidation air mixing pipeline's bottom output, and the interval sets up a plurality of lateral conduits that are linked together along vertical interval on this main line, and this lateral conduit sets up along the horizontal direction, and the output of this main line is linked together the setting with the input of lateral conduit, and the output of this lateral conduit sets up perpendicularly downwards.
Moreover, the material of the ammonia gas mixture cooling spray water sleeve is 316L; or the oxidation air pipeline is made of 20# steel; or the ammonia gas mixed gas and oxidizing air mixed pipeline is made of FRP; or the material of the ammonia gas mixed gas pipe network is 2205; or the supporting beam is made of Q235B, and a glass flake anticorrosive layer is closely arranged on the outer surface of the supporting beam.
The ammonia mixing device for the ammonia flue gas desulfurization oxidation tank is applied to ammonia desulfurization.
The invention has the advantages and positive effects that:
1. this device adopts the relief pressure valve to step down the ammonia gas mixture, and safe and reliable cools down the ammonia gas mixture through the effective process water of ammonia gas mixture cooling spray water jacket, and the ammonia in the ammonia gas mixture can be absorbed to the process water simultaneously, reduces the demand to the dilution air. The device can effectively reduce the temperature of the ammonia gas mixture, reduce the pressure of the ammonia gas mixture, reduce the concentration of the ammonia gas below the explosion limit, and enable the ammonia gas mixture generated by the catalytic hydrolysis of the urea to meet the use requirements.
2. The oxidizing air is an oxidant which must be injected into the oxidation tank in ammonia desulphurization, and the ammonia gas mixture is mixed and diluted by the oxidizing air, so that the demand of the oxidizing air in the oxidation tank is ensured, the ammonia gas mixture can be diluted without adding extra diluting air, and the consumption of materials is reduced.
3. This device can be through parameter, the ammonia gas mixture cooling that changes the relief pressure valve spraying water sleeve pipe parameter and quantity, the parameter of oxidation air conduit, the parameter of ammonia gas mixture and oxidation air mixing pipeline, the parameter and the mounted position of ammonia gas mixture pipe network to satisfy different work load and desulfurization efficiency, very facilitate the use.
4. The ammonia gas mixture and the oxidation air mixing pipeline of the device are made of FRP (fiber reinforced plastic), the ammonia gas mixture pipe network is made of 2205, the possibility of corrosion is low, the failure rate of equipment is low, and the maintenance cost is reduced.
5. The output end of the ammonia gas mixture cooling spraying water sleeve of the device can atomize the process water into small liquid drops, the contact area of the process water sleeve with the ammonia gas mixture is increased, the cooling effect is good, and the cooling effect is further improved.
Drawings
FIG. 1 is a schematic structural connection diagram of an ammonia gas mixing device according to the present invention;
FIG. 2 is a schematic view of the structural connection of an ammonia mixing gas pipe network, an oxidation tank and a support beam of the ammonia mixing device of the present invention.
Detailed Description
The present invention will be further described with reference to specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
Structures not specifically described in detail herein are to be understood as conventional in the art.
An ammonia mixing device of an ammonia flue gas desulfurization oxidation tank comprises a pressure reducing valve 1, an ammonia mixture input pipeline 9, an ammonia mixture cooling spray water sleeve 2, an oxidation air pipeline 3, an ammonia mixture and oxidation air mixing pipeline 4 and an ammonia mixture pipe network 5, wherein the ammonia mixture and oxidation air mixing pipeline is arranged in the vertical direction, the top of the ammonia mixture and oxidation air mixing pipeline is tightly communicated with the output end of the ammonia mixture input pipeline, the input end of the ammonia mixture input pipeline is tightly communicated with the ammonia mixture, the ammonia mixture input pipeline is connected with the pressure reducing valve, and the pressure reducing valve can reduce the pressure of the ammonia mixture in the ammonia mixture input pipeline;
the output end of the ammonia gas mixture cooling spray water sleeve is tightly communicated with the ammonia gas mixture and oxidizing air mixing pipeline below the output end of the ammonia gas mixture input pipeline, the output end of the ammonia gas mixture cooling spray water sleeve is arranged close to the output end of the ammonia gas mixture input pipeline, the input end of the ammonia gas mixture cooling spray water sleeve is tightly connected with a water conduit 8, the water conduit is connected with a process water, and the process water output by the ammonia gas mixture cooling spray water sleeve can cool the decompressed mixture output by the ammonia gas mixture input pipeline;
the output end of the oxidation air pipeline is tightly communicated with the lower part of the ammonia gas mixed gas and oxidation air mixed pipeline, the input end of the oxidation air pipeline is tightly connected with an air inlet pipe (not shown in the figure) for oxidizing the slurry in the oxidation tank, and the air can reduce the content of the ammonia gas in the mixed gas to be below the lower limit of the explosion limit so as to form safe and stable mixed gas;
the input end of the ammonia gas mixture pipe network is closely communicated with the bottom output end of the ammonia gas mixture and oxidation air mixing pipeline, the output pipeline of the ammonia gas mixture pipe network is arranged in the oxidation tank 10, and the ammonia gas mixture pipe network can uniformly convey the safe and stable mixture into the oxidation tank.
The device adopts the pressure reducing valve to reduce the pressure of the ammonia gas mixture, and is safe and reliable; the process water for cooling the spray water jacket pipe of the ammonia gas mixture is used for cooling the ammonia gas mixture, and the process water can absorb ammonia gas in the ammonia gas mixture at the same time, so that the demand for diluting air is reduced.
The device can be installed in an oxidation tank for ammonia flue gas desulfurization, and the installation mode is flexible.
This device can be through parameter, the ammonia gas mixture cooling that changes the relief pressure valve spraying water sleeve pipe parameter and quantity, the parameter of oxidation air conduit, the parameter of ammonia gas mixture and oxidation air mixing pipeline, the parameter and the mounted position of ammonia gas mixture pipe network to satisfy different work load and desulfurization efficiency, very facilitate the use.
In this embodiment, the output of ammonia gas mixture cooling spraying water jacket pipe can be atomized into the droplet with technology, has increased the area of contact with ammonia gas mixture, and the cooling is effectual, has further improved the cooling effect.
In this embodiment, set up pipeline pipe strap 6 and a supporting beam 7 in the oxidation tank, this supporting beam's both ends set up on the inner wall of oxidation tank, ammonia gas mixture pipe net in the oxidation tank sets up on a supporting beam through pipeline pipe strap, and ammonia gas mixture pipe net in this oxidation tank sets up in the oxidation tank through pipeline pipe strap, supporting beam, can effectively prevent the vibrations of ammonia gas mixture pipe net.
In this embodiment, as shown in fig. 2, the ammonia gas mixture pipe network includes a main pipe 11 and a plurality of branch pipes 12, an input end of the main pipe is closely communicated with a bottom output end of the ammonia gas mixture and oxidizing air mixture pipe, the main pipe is provided with a plurality of branch pipes at intervals along a longitudinal direction, the branch pipes are arranged along a horizontal direction, an output end of the main pipe is communicated with input ends of the branch pipes, and output ends of the branch pipes are arranged vertically downward.
In this embodiment, the material of the ammonia gas mixture cooling spray water sleeve is 316L; or the oxidation air pipeline is made of 20# steel; or the ammonia gas mixed gas and oxidizing air mixed pipeline is made of FRP; or the material of the ammonia gas mixed gas pipe network is 2205; or the supporting beam is made of Q235B, and a glass flake anticorrosive layer is closely arranged on the outer surface of the supporting beam, so that the possibility of corrosion is low, and the investment cost is low.
The working principle of the ammonia mixing device of the ammonia flue gas desulfurization oxidation tank is as follows:
the ammonia gas mixture enters the device through a pipeline, and the pressure of the ammonia gas mixture is reduced through an ammonia gas mixture pressure reducing valve. And the decompressed mixed gas is cooled by the process water in the cooling spraying water jacket pipe. And mixing the cooled mixed gas with oxidizing air to reduce the content of ammonia in the mixed gas to be below the lower limit of the explosion limit, so as to form the safe and stable mixed gas. And finally, uniformly conveying the mixed gas into an oxidation tank through an ammonia gas mixed gas pipe network, and reacting the mixed gas with the slurry in the oxidation tank to form ammonium sulfate.
Although the embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments disclosed.
Claims (6)
1. The utility model provides an ammonia process flue gas desulfurization oxidation tank ammonia mixing arrangement which characterized in that: the device comprises a pressure reducing valve, an ammonia gas mixture input pipeline, an ammonia gas mixture cooling spray water sleeve, an oxidizing air pipeline, an ammonia gas mixture and oxidizing air mixing pipeline and an ammonia gas mixture pipe network, wherein the ammonia gas mixture and oxidizing air mixing pipeline is arranged along the vertical direction, the top of the ammonia gas mixture and oxidizing air mixing pipeline is tightly communicated with the output end of the ammonia gas mixture input pipeline, the input end of the ammonia gas mixture input pipeline is tightly communicated with the ammonia gas mixture, the ammonia gas mixture input pipeline is connected with the pressure reducing valve, and the pressure reducing valve can reduce the pressure of the ammonia gas mixture in the ammonia gas mixture input pipeline;
the output end of the ammonia gas mixture cooling spray water sleeve is tightly communicated with the ammonia gas mixture and oxidizing air mixing pipeline below the output end of the ammonia gas mixture input pipeline, the output end of the ammonia gas mixture cooling spray water sleeve is arranged close to the output end of the ammonia gas mixture input pipeline, the input end of the ammonia gas mixture cooling spray water sleeve is tightly connected with a water diversion pipe, the water diversion pipe is connected with a process water, and the process water output by the ammonia gas mixture cooling spray water sleeve can cool the decompressed mixture output by the ammonia gas mixture input pipeline;
the output end of the oxidation air pipeline is tightly communicated with the lower part of the ammonia gas mixed gas and oxidation air mixed pipeline, the input end of the oxidation air pipeline is tightly connected with an air inlet pipe for oxidizing the slurry in the oxidation tank, and the air can reduce the content of the ammonia gas in the mixed gas to be below the lower limit of the explosion limit so as to enable the mixed gas to become safe and stable mixed gas;
the input end of the ammonia gas mixture pipe network is closely communicated with the bottom output end of the ammonia gas mixture and oxidation air mixing pipeline, the output pipeline of the ammonia gas mixture pipe network is arranged in the oxidation tank, and the ammonia gas mixture pipe network can uniformly convey the safe and stable mixture into the oxidation tank.
2. The ammonia mixing device of the ammonia flue gas desulfurization oxidation tank of claim 1, which is characterized in that: the output end of the ammonia gas mixture cooling spraying water sleeve can atomize the process water into small liquid drops.
3. The ammonia mixing device of the ammonia flue gas desulfurization oxidation tank of claim 1, which is characterized in that: the oxidation tank is internally provided with a pipeline pipe clamp and a supporting beam, the two ends of the supporting beam are arranged on the inner wall of the oxidation tank, an ammonia mixed gas pipe network in the oxidation tank is arranged on the supporting beam through the pipeline pipe clamp, and the ammonia mixed gas pipe network in the oxidation tank is arranged in the oxidation tank through the pipeline pipe clamp and the supporting beam.
4. The ammonia mixing device of the ammonia flue gas desulfurization oxidation tank of claim 1, which is characterized in that: the ammonia gas mixture pipe network includes main pipeline and a plurality of lateral conduits, and the input of this main pipeline closely is linked together the setting with ammonia gas mixture and oxidation air mixing pipeline's bottom output, and the interval sets up a plurality of lateral conduits that are linked together along vertical interval on this main pipeline, and this lateral conduit sets up along the horizontal direction, and the output of this main pipeline is linked together the setting with the input of lateral conduit, and the output of this lateral conduit sets up perpendicularly downwards.
5. The ammonia mixing device of the ammonia flue gas desulfurization oxidation tank of any one of claims 1 to 4, characterized in that: the material of the ammonia gas mixture cooling spray water sleeve is 316L; or the oxidation air pipeline is made of 20# steel; or the ammonia gas mixed gas and oxidizing air mixed pipeline is made of FRP; or the material of the ammonia gas mixed gas pipe network is 2205; or the supporting beam is made of Q235B, and a glass flake anticorrosive layer is closely arranged on the outer surface of the supporting beam.
6. The application of the ammonia flue gas desulfurization oxidation tank ammonia mixing device of any one of claims 1 to 5 in ammonia desulfurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306098.2A CN110860193A (en) | 2019-12-18 | 2019-12-18 | Ammonia mixing device for ammonia flue gas desulfurization oxidation tank and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306098.2A CN110860193A (en) | 2019-12-18 | 2019-12-18 | Ammonia mixing device for ammonia flue gas desulfurization oxidation tank and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110860193A true CN110860193A (en) | 2020-03-06 |
Family
ID=69659006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911306098.2A Pending CN110860193A (en) | 2019-12-18 | 2019-12-18 | Ammonia mixing device for ammonia flue gas desulfurization oxidation tank and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110860193A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359396A (en) * | 2020-04-21 | 2020-07-03 | 湖南龙立机电技术有限公司 | Coke oven flue gas semi-dry ammonia desulfurization process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555025A (en) * | 2009-05-08 | 2009-10-14 | 山东大学 | Preparation method of ammonia for coal-fired flue gas desulfurization and denitration by coproduction |
| CN102068897A (en) * | 2011-01-11 | 2011-05-25 | 中环（中国）工程有限公司 | Ammonia supply device for ammonia method desulfuration process |
| CN202336300U (en) * | 2011-11-15 | 2012-07-18 | 薛彦辉 | Ammonia releasing device |
| CN211753782U (en) * | 2019-12-18 | 2020-10-27 | 航天环境工程有限公司 | Ammonia mixing device of ammonia flue gas desulfurization oxidation tank |
-
2019
- 2019-12-18 CN CN201911306098.2A patent/CN110860193A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555025A (en) * | 2009-05-08 | 2009-10-14 | 山东大学 | Preparation method of ammonia for coal-fired flue gas desulfurization and denitration by coproduction |
| CN102068897A (en) * | 2011-01-11 | 2011-05-25 | 中环（中国）工程有限公司 | Ammonia supply device for ammonia method desulfuration process |
| CN202336300U (en) * | 2011-11-15 | 2012-07-18 | 薛彦辉 | Ammonia releasing device |
| CN211753782U (en) * | 2019-12-18 | 2020-10-27 | 航天环境工程有限公司 | Ammonia mixing device of ammonia flue gas desulfurization oxidation tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111359396A (en) * | 2020-04-21 | 2020-07-03 | 湖南龙立机电技术有限公司 | Coke oven flue gas semi-dry ammonia desulfurization process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211753782U (en) | Ammonia mixing device of ammonia flue gas desulfurization oxidation tank | |
| CN200998639Y (en) | Concentrated crystallization and absorbed oxidation combined type ammonia process desulfuration tower | |
| CN101428196A (en) | In-hollow column intercrystalline ammonia process of desulfurization, recovery system and method thereof | |
| CN102029105B (en) | Double-tower ammonia method desulfuration device and process | |
| CN107051158A (en) | A kind of hydrogen peroxide desulfurizer handled for sulfuric acid tail gas and method | |
| CN206793364U (en) | The ammonia process of desulfurization saves the device more than one times | |
| CN110860193A (en) | Ammonia mixing device for ammonia flue gas desulfurization oxidation tank and application | |
| CN203408621U (en) | Acidic flue gas treatment system | |
| CN204193780U (en) | A kind of high-efficiency desulfurization absorption tower | |
| CN201214046Y (en) | Ammonia process desulphurizing device for reducing ammonia escape | |
| CN203577619U (en) | Absorption tower for desulfuration by using wet type calcium method | |
| CN104998530A (en) | Sulfuric acid tail gas desulphurization device and method | |
| CN104386709A (en) | Urea hydrolysis reactor with waste heat recovery device | |
| CN101703879A (en) | Aminogroup smoke exhaust purification method and device thereof | |
| CN101703877A (en) | Amino smoke discharging and purifying device | |
| CN217961993U (en) | Ammonia process desulfurization and decarbonization tower and chemicals coproduction device | |
| CN102527223A (en) | Sintering machine flue gas desulfurization process and device thereof | |
| CN105817121A (en) | Flue gas flow equalizing partitioning device of wet-process desulphurization absorption tower | |
| CN201609626U (en) | Device applied in ammonia flue gas desulfurization by using technology of hydrochloric acid production through flue gas dechlorination | |
| CN101829491A (en) | Sulfur-containing flue gas purifying device | |
| CN213761248U (en) | Horizontal annular wet flue gas desulfurization device | |
| CN206199004U (en) | A kind of novel hydraulic energetic disturbance system | |
| CN202860390U (en) | Ammonia-process cleaning and purifying device of sulfur-containing tail gas | |
| CN104971601B (en) | Acid gas vertical reactor and processing method | |
| CN206676219U (en) | A kind of hydrogen peroxide desulfurizer for sulfuric acid tail gas processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |