CN210714814U - Marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying - Google Patents
Marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying Download PDFInfo
- Publication number
- CN210714814U CN210714814U CN201920826972.4U CN201920826972U CN210714814U CN 210714814 U CN210714814 U CN 210714814U CN 201920826972 U CN201920826972 U CN 201920826972U CN 210714814 U CN210714814 U CN 210714814U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- tank
- oxidation reaction
- washing
- jar
- 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
Images
Abstract
The utility model discloses a marine engine tail gas high efficiency purification system based on seawater electrolysis and electrostatic spraying, including electrolytic bath, washing jar and waste liquid exhaust treatment device, the washing jar includes prewashing jar, oxidation reaction jar and alkaline absorption jar, and the prewashing jar is connected diesel engine, utilizes the sea water to carry out the preliminary treatment to high temperature tail gas, inputs tail gas to the oxidation reaction jar after removing fine particles, sulphide and nitrogen oxide; oxidizing the tail gas by using oxidizing washing liquid in an oxidation reaction tankAfter CO is removed, inputting tail gas into an alkaline absorption tank; the alkaline absorption tank utilizes alkaline washing liquid to treat tail gas and remove SO2And NO2(ii) a Can directly discharge for it after washing jar, oxidation reaction jar and alkaline absorption jar are handled, and the waste liquid of each link also can directly discharge into the sea, the utility model discloses a "treat waste with waste", directly utilize sea water, sea water desalination's waste water and electrolytic result to carry out effectual processing to ship tail gas.
Description
Technical Field
The utility model belongs to the technical field of the ship is anti-pollution, especially, relate to high-efficient clean system of marine engine tail gas based on sea water electrolysis and electrostatic spray.
Background
In world freight transportation, waterway transportation is favored because of the advantages of large transportation volume, safety, economy and the like, and statistically, 80% of the cargoes in the world are transported by ships. However, with the development of the marine shipping industry, serious pollution and marine destruction problems are generated, wherein the problem of air pollution is the most serious, and according to statistics, the emission of NOx of the marine diesel engine is about 1900 ten thousand tons and the emission of SO2 is about 1024 ten thousand tons in 2012, which respectively account for 15% and 13% of the total emission of NOx and SO2 in the world.
The International Maritime Organization (IMO) has established a series of ship pollution prevention convention to limit the emission of ship tail gas and strengthen the protection of marine ecological environment. The international convention for preventing ship pollution (MARPOL) compliance VI amendment (see appendix 6.1) takes effect formally on 7/1/2010. Currently, Tier II and Tier III for nitrogen oxides have been put into practice, and Tier III for sulfides will be put into use in 2020. Compared with the Tier II standard, the control limit value of the Tier III standard on sulfide and nitrogen oxide is reduced by 89% and 80% in a same ratio, and more strict requirements are provided for related industries.
The traditional ship tail gas desulfurization technology comprises an alkaline liquor method and a limestone-gypsum method, and a magnesium method, an ammonia method and the like are derived on the basis of the alkaline liquor method and the limestone-gypsum method. The conventional tail gas denitration method is a Selective Catalytic Reduction (SCR) technique.
At present, the latest foreign exhaust gas treatment and purification technology is to purify the ship exhaust gas by using plasma to assist a MnO2 filter. Plasma-assisted MnO2 compact filters have been proposed as zero emission filters in transportation, such as vehicles and ships. Research shows that MnO2 can absorb SO2 and NO2 simultaneously. In this technique, ozone is added to the exhaust gas in order to improve the absorption properties of SO2 and NO 2. The result shows that the addition of ozone can keep the absorption rates of SO2 and NO2 to be more than 90%. By adding ozone, the NO2 uptake increased significantly. However, the utilization of MnO2 exceeds the theoretical absorption amount. The technology is not completely mature, and cannot be widely applied to ship transportation.
On the basis of water mist dust removal, the liquid drops are charged in a certain mode, and fine particles are removed efficiently under the action of electrostatic force among liquid drop particles. Theoretical analysis shows that the liquid drop charge is beneficial to trapping fine particles by wet washing, and the grading dust removal efficiency of the particles reaches more than 70%. The experimental research of a large amount of charged liquid drop dust removal is carried out by scholars at home and abroad, and the result shows that the charged liquid drops can remove fine particles more efficiently.
The charged spray has the advantage of synergistic desulfurization, the charged water spray can be used for synergistically trapping submicron dust, and the function of synergistically eliminating SO2 gas in wet desulfurization is realized. Numerous scholars have studied the charged spray flue gas desulfurization technology to improve the flue gas desulfurization efficiency. Studies have shown that charged desulfurization slurries increase the absorption of SO2 by 50% in the drip mode. Meanwhile, the influence of charged spraying on flue gas desulfurization is researched in a test, and a test system indicates that the surface tension of liquid drops is reduced after the liquid drops are charged, the atomization performance of liquid is improved, and the chemical reaction is intensified. Compared with uncharged, the charged spray desulfurization efficiency is improved by about 6 percent.
Therefore, after the water mist is charged, the dust in the dust-containing airflow can be effectively captured under the action of electrostatic force, and the emission concentration of fine particulate matters is reduced. If the charged spraying technology is adopted, the ship waste pollutant can be expected to be removed, and the requirement of low emission is met.
In summary, it is very important to provide an energy-saving and efficient measure to solve the problem of ship exhaust pollution emission.
SUMMERY OF THE UTILITY MODEL
The utility model discloses according to the problem that exists among the prior art, provided the marine engine tail gas high-efficient clean system based on sea water electrolysis and electrostatic spray, adopted the electric atomization technique of lotus, changed the tradition and sprayed that mode reaction efficiency is low, the big drawback of washing liquid consumption.
The utility model discloses the technical scheme who adopts as follows:
a marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying comprises an electrolytic cell, a washing tank and a waste liquid and waste gas treatment device;
the electrolytic cell comprises a seawater desalination machine and a diaphragm electrolytic cell, and waste liquid generated after desalination of the seawater desalination machine is treated by the diaphragm electrolytic cell to generate oxidation cleaning liquid and alkaline cleaning liquid;
the washing tank comprises a pre-washing tank, an oxidation reaction tank and an alkaline absorption tank, and spray pipelines are arranged at the tops of the pre-washing tank, the oxidation reaction tank and the alkaline absorption tank; the pre-washing tank is connected with a diesel engine, high-temperature tail gas is pretreated by seawater, and the tail gas is input into the oxidation reaction tank after fine particulate matters, sulfides and nitrogen oxides are removed; the oxidation reaction tank utilizes an oxidation washing solution to carry out oxidation treatment on the tail gas, and the tail gas is input into the alkaline absorption tank after CO is removed; the alkaline absorption tank utilizes alkaline washing liquid to treat tail gas and remove SO2And NO2；
The waste liquid and waste gas treatment device comprises a demisting chamber and a waste liquid pool, wherein the demisting chamber is arranged behind the alkaline absorption tank and is used for removing tail gas water mist; and the waste liquid pool is respectively connected with the prewashing tank, the oxidation reaction tank and the alkaline absorption tank.
Further, the oxidation reaction tank is also connected with a ballast water system, and the ballast water is disinfected by using available chlorine in the waste liquid.
Furthermore, a turbulence baffle is arranged in the oxidation reaction tank, the included angle between the turbulence baffle and the wall surface is 90 degrees, a large-range vortex can be formed in a flow field, mixing and mass transfer are enhanced, and the purification efficiency is improved.
Furthermore, the spray head on the spray pipeline adopts an electrostatic atomization spray head, so that the atomized particle size of liquid drops is smaller and more uniform, the reaction is more sufficient, and meanwhile, charged liquid drops have the characteristic of attracting fine particles and can remove the fine particles in the flue gas in a synergic manner.
Further, the prewashing tank, the oxidation reaction tank and the alkaline absorption tank are separated by a metal plate made of corrosion-resistant material.
Furthermore, the diaphragm electrolytic cell is composed of a diaphragm, a cathode cavity and an anode cavity, wherein the diaphragm adopts a cation exchange membrane, the cathode electrolytic electrode adopts a titanium coating metal plate, and the anode adopts a metal plate with a RuO2/IrO2 metal oxide coating surface.
Further, a filter is arranged at the discharge part of the waste liquid pool.
The utility model has the advantages that:
1. the utility model adopts the electrostatic spraying technology in the washing tank, so that the generated fog drops can be better in full contact with the tail gas of each layer in the washing tank, the adsorption effect, the sedimentation effect and the chemical reaction effect of the liquid drops are realized, and the partial purification efficiency of the whole washing tank is high;
2. the utility model discloses an all that used administers the raw materials among the tail gas purification process all are that waste gas waste liquid adopts, low cost, and economic benefits is good, and after handling, all discarded objects all can go into no secondary pollution in the sea, have realized "treating waste with waste".
3. The utility model realizes the integrated treatment of the tail gas of the marine engine, occupies small space and is safe to use;
4. a turbulent baffle is added into the washing tank to form a vortex, so that mixing and mass transfer are enhanced, and the purification efficiency is improved.
Drawings
FIG. 1 is a block diagram of a marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying;
FIG. 2 is a working schematic diagram of the marine engine tail gas efficient purification based on seawater electrolysis and electrostatic spraying of the present invention;
FIG. 3 is a schematic view of the installation of a baffle plate in an oxidation reaction tank;
in the figure, 1, a seawater desalination machine, 2, a liquid storage tank, 3, a diaphragm electrolytic cell, 4, an anode liquid tank, 5, a cathode liquid tank, 6, a submersible pump, 7, a diesel engine, 8, a valve, 9, a delivery pump, 10, a washing tank, 11, a fan, 12, a chimney, 13, a waste liquid tank, 14, a filter, 15, a drain pipe and 16, a ballast water system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The marine engine tail gas high-efficiency purification system based on seawater electrolysis and electrostatic spraying comprises an electrolytic cell, a washing tank 10 and a waste liquid and waste gas treatment device;
the electrolytic cell includes sea water desalination machine 1, liquid storage tank 2 and diaphragm electrolytic cell 3, sea water desalination machine 1 connects liquid storage tank 2, high salinity waste liquid input liquid storage tank 2 after will desalinating is stored for subsequent use, liquid storage tank 2 still connects immersible pump 6, go into the sea water to the inside pump of liquid storage tank 2 through immersible pump 6, the exit linkage diaphragm electrolytic cell 3 of liquid storage tank 2, input the high salinity sea water of concentrating in the liquid storage tank 2 into diaphragm electrolytic cell 3, diaphragm electrolytic cell 3 divide into positive pole liquid cell 4 and negative pole liquid cell 5, positive pole liquid cell 4 produces the oxidation washing liquid, negative pole liquid cell 5 produces alkaline washing liquid.
The washing tank 10 is divided into three layers, namely a pre-washing tank, an oxidation reaction tank and an alkaline absorption tank from bottom to top, wherein two adjacent tank bodies of the pre-washing tank, the oxidation reaction tank and the alkaline absorption tank are communicated through a flue; the bottom of the pre-washing tank is connected with a marine diesel engine, high-temperature tail gas discharged by the diesel engine is pumped into the washing tank by a fan, the top of the pre-washing tank is provided with a pre-washing spray pipeline, the spray pipeline is connected with a submersible pump 6, and seawater is used for pre-washing the high-temperature tail gas; the tail gas after pre-washing enters an oxidation reaction tank through a flue, and impurity-containing waste liquid generated after pre-washing is input into a waste liquid pool 13 through a pipeline.
The top of the oxidation reaction tank is provided with an oxidation reaction spray pipeline, the spray pipeline is connected with an anode liquid pool 4, oxidation washing liquid is used for treating tail gas, the treated tail gas enters an alkaline absorption tank through a flue, a part of alkaline waste liquid generated after spraying in the oxidation reaction tank is input into a ballast water system 16 through a pipeline, and the other part of alkaline waste liquid is input into a waste liquid pool 13 through a pipeline.
The top of the alkaline absorption tank is provided with an alkaline absorption spray pipeline which is connected with a cathode liquid pool 5, the tail gas is treated by alkaline cleaning solution, and the treated clean tail gas is blown into a chimney 12 by a fan 11 and is discharged; the alkaline waste liquid generated after spraying in the alkaline absorption tank is input into the waste liquid tank 13 through a pipeline.
In this embodiment, the spray pipes on the pre-washing tank, the oxidation reaction tank and the alkaline absorption tank adopt electrostatic atomization nozzles, and the upper part of the alkaline absorption tank is provided with a defogging chamber for removing water mist in the tail gas to make the tail gas reach the standard, and finally, the clean tail gas is discharged into the atmosphere. And the pre-washing tank, the oxidation reaction tank and the alkaline absorption tank are separated by metal plates made of corrosion-resistant materials, as shown in figure 3, the oxidation reaction tank is additionally provided with a turbulence baffle, the included angle between the turbulence baffle and the wall surface is 90 degrees, and the turbulence baffle can form a large-scale vortex in a flow field, so that the mixing and mass transfer are enhanced, and the purification efficiency is improved.
The diaphragm electrolytic cell 3 is composed of a diaphragm, a cathode chamber and an anode chamber, and cathode and anode catalytic electrodes are respectively fixed in the cathode chamber and the anode chamber. The cathode cavity and the anode cavity are separated by a diaphragm, the diaphragm adopts a cation exchange membrane, the cathode electrolysis electrode adopts a titanium coating metal plate, and the anode adopts a metal plate with a RuO2/IrO2 metal oxide coating on the surface.
For a more clear explanation of the technical solution of the present invention, the following is further explained in conjunction with the working principle of the present invention, as shown in fig. 2:
the seawater desalination machine 1 inputs the desalinated high-salinity waste liquid into the liquid storage tank 2, meanwhile, the submersible pump 6 pumps the seawater into the liquid storage tank 2, the high-salinity seawater in the liquid storage tank 2 flows into the diaphragm electrolytic cell 3, Cl2 is generated on the surface of the anode of the diaphragm electrolytic cell 3, and 2Cl reacts-(aq)-2e-→Cl2(ii) a OH formation on the cathode surface-Reaction 2H occurs2O(l)+2e-→2OH-(aq)+H2(g)。Cl2Dissolution in the anode chamber to react:
Cl2(g)→Cl2(aq),Cl2(aq)+H2O(l)→HClO(aq)+HCl(aq),HClO(aq)→H+(aq)+ClO-(aq)，
due to the barrier separation of the cation exchange membrane, only Na+Can freely pass through and anions cannot permeate through, so that after modification, an acidic solution is generated in the anode chamber, oxidizing components mainly comprise HClO, an alkaline solution is generated in the cathode chamber, and the alkaline components mainly comprise NaOH. The oxidation liquid and the alkaline liquid generated by the electrolysis of the diaphragm electrolytic cell 3 are respectively stored in the anode liquid cell 4 and the cathode liquid cell 5, and then the two liquids are respectively sprayed into an oxidation washing tank and an alkaline liquid absorption tank in the washing tank 10 through the charged atomization nozzle and are fully contacted with tail gas in the tanks.
The method comprises the following steps of (1) preliminarily removing fine particles, sulfides and nitrogen oxides in high-temperature tail gas generated in a diesel engine 7 in a pre-washing tank, then enabling the high-temperature tail gas to enter an oxidation reaction tank, enabling the gas and the liquid to be fully mixed due to turbulence baffle plates in the oxidation reaction tank, oxidizing nitric oxide which is insoluble in water in the tail gas into nitrogen dioxide which is soluble in water under the spraying action of a chlorine-containing washing solution, then enabling the nitrogen dioxide to enter an alkaline absorption section, absorbing acidic gas sulfur dioxide and nitrogen dioxide in the tail gas by an alkaline washing solution, removing water mist from a demisting chamber at the top of a washing tank 10 to enable the tail gas to reach the standard, and finally discharging clean tail gas into; after purification is completed, a part of the washing waste liquid of the oxidation reaction section enters a ballast water system 16, the ballast water is disinfected by using residual effective chlorine in the washing waste liquid, and the other part of the washing waste liquid and waste liquid generated in the prewashing tank and the alkaline absorption tank enter a waste liquid pool 13, are filtered by a filter 14 and are directly discharged into seawater through a drain pipe 15. The high-efficiency purification of the tail gas of the marine engine is realized, and the product can be directly discharged into the sea without damaging the natural environment.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (7)
1. The marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying is characterized by comprising an electrolytic cell, a washing tank (10) and a waste liquid and waste gas treatment device;
the electrolytic cell comprises a seawater desalination machine (1) and a diaphragm electrolytic cell (3), and waste liquid generated after desalination of the seawater desalination machine (1) is treated by the diaphragm electrolytic cell (3) to generate oxidation cleaning liquid and alkaline cleaning liquid;
the washing tank (10) comprises a pre-washing tank, an oxidation reaction tank and an alkaline absorption tank, and spray pipelines are arranged at the tops of the pre-washing tank, the oxidation reaction tank and the alkaline absorption tank; the prewashing tank is connected with a diesel engine (7), high-temperature tail gas is pretreated by seawater, and the tail gas is input into the oxidation reaction tank after fine particles, sulfides and nitrogen oxides are removed; the oxidation reaction tank utilizes an oxidation washing solution to carry out oxidation treatment on the tail gas, and the tail gas is input into the alkaline absorption tank after CO is removed; the alkaline absorption tank utilizes alkaline washing liquid to treat tail gas and remove SO2And NO2；
The waste liquid and waste gas treatment device comprises a demisting chamber and a waste liquid pool (12), wherein the demisting chamber is arranged behind the alkaline absorption tank and is used for removing tail gas water mist; the waste liquid pool (12) is respectively connected with the prewashing tank, the oxidation reaction tank and the alkaline absorption tank.
2. The marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying as claimed in claim 1, wherein the oxidation reaction tank is further connected with a ballast water system (16), and ballast water is disinfected by effective chlorine in waste liquid.
3. The marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying of claim 1 or 2, wherein a turbulent flow blocking piece is arranged in the oxidation reaction tank, and an included angle between the turbulent flow blocking piece and the wall surface is 90 °.
4. The marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying as claimed in claim 1, wherein the spray head on the spray pipe is an electrostatic atomization spray head, which can make the atomized liquid droplets finer and more uniform in particle size.
5. The marine engine exhaust gas high-efficiency purification system based on seawater electrolysis and electrostatic spraying of claim 1, wherein the prewash tank, the oxidation reaction tank and the alkaline absorption tank are separated by a metal plate made of a corrosion-resistant material.
6. The marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying as claimed in claim 1, wherein the diaphragm electrolytic cell (3) is composed of a diaphragm, a cathode cavity and an anode cavity, the diaphragm adopts a cation exchange membrane, the cathode electrolytic electrode adopts a titanium-coated metal plate, and the anode adopts a metal plate with a RuO2/IrO2 metal oxide coating surface.
7. The marine engine exhaust gas high-efficiency purification system based on seawater electrolysis and electrostatic spraying as claimed in claim 1, wherein the discharge part of the waste liquid tank (12) is further provided with a filter (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826972.4U CN210714814U (en) | 2019-06-03 | 2019-06-03 | Marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826972.4U CN210714814U (en) | 2019-06-03 | 2019-06-03 | Marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714814U true CN210714814U (en) | 2020-06-09 |
Family
ID=70966220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920826972.4U Expired - Fee Related CN210714814U (en) | 2019-06-03 | 2019-06-03 | Marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210714814U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388246A (en) * | 2019-06-03 | 2019-10-29 | 江苏大学 | A kind of marine engine high-efficiency tail gas purifying system based on seawater electrolysis and electrostatic spray |
| CN117654257A (en) * | 2024-02-01 | 2024-03-08 | 青岛百发海水淡化有限公司 | Equipment for absorbing carbon dioxide by utilizing sea water desalination waste liquid |
| CN117654257B (en) * | 2024-02-01 | 2024-04-26 | 青岛百发海水淡化有限公司 | Equipment for absorbing carbon dioxide by utilizing sea water desalination waste liquid |
-
2019
- 2019-06-03 CN CN201920826972.4U patent/CN210714814U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388246A (en) * | 2019-06-03 | 2019-10-29 | 江苏大学 | A kind of marine engine high-efficiency tail gas purifying system based on seawater electrolysis and electrostatic spray |
| CN117654257A (en) * | 2024-02-01 | 2024-03-08 | 青岛百发海水淡化有限公司 | Equipment for absorbing carbon dioxide by utilizing sea water desalination waste liquid |
| CN117654257B (en) * | 2024-02-01 | 2024-04-26 | 青岛百发海水淡化有限公司 | Equipment for absorbing carbon dioxide by utilizing sea water desalination waste liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105498490B (en) | The marine exhaust multi-pollutant integrated conduct method and device that a kind of electrolytic seawater integrates with ultraviolet irradiation | |
| CN107754607B (en) | Comprehensive treatment method and device for exhaust gas of marine diesel engine | |
| CN106865840A (en) | A kind of ship tail gas and ballast water integrated processing system | |
| CN107456856B (en) | Seawater-method-based ship tail gas desulfurization and denitrification integrated removal device and method | |
| CN108744908A (en) | A kind of flue dust removes nitre sulphur removal environmental protection equipment | |
| CN115591392A (en) | Ship tail gas desulfurization, denitrification and decarburization integrated system and treatment method | |
| CN210714814U (en) | Marine engine tail gas efficient purification system based on seawater electrolysis and electrostatic spraying | |
| CN105498480B (en) | A kind of hypochlorite simultaneous SO_2 and NO removal degranulation thing method and device strengthened based on ultraviolet irradiation | |
| CN107875855A (en) | A kind of boat diesel engine exhaust emission integrated conduct method and device | |
| CN106925093B (en) | Composite ship ballast water and ship waste gas treatment system | |
| CN206762623U (en) | A kind of novel liquid-phase oxidative absorption denitrification apparatus | |
| CN110013765A (en) | A kind of ship tail gas denitration integrated device | |
| KR101775120B1 (en) | Apparatus for reducing air pollutant | |
| CN206799327U (en) | A kind of ship tail gas and ballast water integrated treatment unit | |
| CN107511075B (en) | Spray tower simultaneously removes boats and ships tail gas NOxAnd SO2Method (2) | |
| CN205461702U (en) | Haze processing system | |
| CN112250239B (en) | Ship diesel engine waste gas washing water treatment device utilizing ship waste heat | |
| CN106823752A (en) | A kind of novel liquid-phase oxidative absorption method of denitration and system | |
| CN210251843U (en) | Tail gas tower for waste acid regeneration treatment | |
| CN212396376U (en) | Fluorite stoving tail gas treatment clean system | |
| CN204327244U (en) | Internal combustion engine part associative ring insurance system | |
| CN208642164U (en) | A kind of recycling of waste gas purification uses equipment | |
| CN205361047U (en) | Be used for boats and ships tail gas integration dust removal SOx/NOx control device | |
| CN207667418U (en) | A kind of desulphurization denitration equipment with cleaning function | |
| CN111408241A (en) | Integrated desulfurization and denitrification system for ship tail gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |