CN105689142A - Wet electric dust remover, anode thereof and system - Google Patents
Wet electric dust remover, anode thereof and system Download PDFInfo
- Publication number
- CN105689142A CN105689142A CN201610082220.2A CN201610082220A CN105689142A CN 105689142 A CN105689142 A CN 105689142A CN 201610082220 A CN201610082220 A CN 201610082220A CN 105689142 A CN105689142 A CN 105689142A
- Authority
- CN
- China
- Prior art keywords
- anode
- wet electrical
- dust precipitator
- electrical dust
- desulfurizer
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/49—Collecting-electrodes tubular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention provides a wet electric dust remover, an anode thereof and a system. The surface of the anode is coated with a catalyst, and the catalyst is composed of a cerium-zirconium composite oxide or a manganese-based perovskite composite oxide; and the cerium-zirconium composite oxide is CexZr(1-x)O2, x is 0.6 to 1, the manganese-based perovskite composite oxide is La(1-y)KyMnO3, and y is 0.8 to 1. The electric dust remover provided by the invention is in the form of vertical (cellular) anode arrangement, and the anode is made from conductive glass fiber reinforced plastic, with a specific dust collection area of 24.5m<2>/(m<3>/s), high dust removal efficiency, and a high dust emission concentration of 5mg/m<3>. Moreover, many pollutants of SO3, NOx, Hg and the like can be co-disposed, thus comprehensive flue gas control is really realized.
Description
Technical field
The present invention relates to field of Environment Protection, specifically, the present invention relates to a kind of wet electrical dust precipitator and anode thereof and system。
Background technology
In the industries such as power plant, metallurgy, papermaking, not only producing substantial amounts of carbon nitrogen sulfur oxide, also discharge substantial amounts of dust in air in the combustion process of coal, not only waste fuel, simultaneously severe contamination environment, affects the health of the mankind。
Health is depended on the particle diameter of particulate matter, concentration and the time exposed wherein by dust effect。The particle diameter of granule is more little, more not easily deposits, can swim in for a long time and be easily inhaled human body in air, and easily go deep into pulmonary。Particle diameter is called overall suspended pellet 100 μm of particles below, it is possible to quickly settle in an atmosphere；Particle diameter is called pellet (PM10) 100 μm of particles below；Particle diameter is called 2.5 μm of particles below can enter lung grain thing (PM2.5)。PM10, particularly PM2.5 particle specific surface area are big, surface activity contains by force and mostly sodium nitride, calcium fluoride, the compound of pick, ferrum, vfanadium compound etc., and what have also carries benzene and homologue, easy cause cancer。
At present, in, the commonly used electrostatic precipitator of arcola purify the waste gas of discharge。Due to the limitation that fine dust is collected by dry electrostatic cleaner, a large amount of PM10, PM2.5 dust cannot trap。But, PM2.5 dust is again the major pollutants causing haze weather。China Environmental Monitoring General Station according to the Monitoring Data of more than 300 urban air-quality of China is taken statistics it is shown that current China there are about the urban atmosphere particle concentration of 66.7% exceeds standard。Nowadays, fine particle is also administered and be refer to a unprecedented height by China。
At present, market discloses such a electric cleaner, its structure consists of: by housing, negative electrode, anode, air inlet, air outlet and ash bucket composition, negative electrode and anode are arranged alternately in housing by predetermined distance, air inlet is arranged on shell one end, air outlet is arranged on the housing other end, in lower housing portion, ash bucket is installed, the electric cleaner operation principle announced is: by the negative electrode of electric field is applied negative high voltage, electric field air ionization is made to produce electric charge, realize charged with electric charge collision when flue dust is by electric field, the charged flue dust collecting of electrostatic field force between anode and negative electrode is on positive plate and negative electrode, negative electricity dust toward anode drive into, positive electricity dust toward negative electrode drive into, reach the purpose of electrostatic dust collection。
Due to this kind of electric cleaner, there is bigger defect, substantial portion of Charged can not arrive pole plate or negative electrode is just brought back to electric field outlet by the air-flow of electric field again。Due to the charged difficulty of high resistivity dust or can not charged can not effectively be trapped；Namely ultra-fine grain dust is enabled effectively to be gathered dust very greatly by the windage of air-flow and is also easy to be travelled back in flue gas by air-flow again band。Therefore, this type of electric cleaner dust collection effect is poor, it is impossible to reaches outlet drain concentration less than below 50mg/Nm3, is sometimes easily generated the phenomenon of blast, burning。
Along with the raising day by day that Environmental Protection in China requires, electric cleaner have to be updated, and to improve its efficiency of dust collection, particularly controls the discharge of subparticle。
Summary of the invention
It is an object of the present invention to provide a kind of wet electrical dust precipitator anode；
Another object of the present invention is to provide a kind of wet electrical dust precipitator comprising described wet electrical dust precipitator anode；
A further object of the present invention is in that to provide a kind of desulfurization dust-removal system。
For reaching above-mentioned purpose, on the one hand, the invention provides a kind of wet electrical dust precipitator anode, wherein, described anode coating catalyst, described catalyst consists of cerium zirconium compound oxide or Manganese perovskite composite oxides；Described cerium zirconium compound oxide is CexZr1-xO2, x is 0.6-1, Manganese perovskite composite oxides La1-yKyMnO3, y is 0.8-1。
According to some specific embodiments of the present invention, wherein, described anode is fiberglass。
According to some specific embodiments of the present invention, wherein, described anode is hexagon tube bank。
According to some specific embodiments of the present invention, wherein, described anode is regular hexagon tube bank。
According to some specific embodiments of the present invention, wherein, described catalyst is the inner surface being coated in hexagon tube bank。
According to some specific embodiments of the present invention, wherein, the catalyst layer thickness of described anode coating is 1-2cm。
The catalyst of the present invention can adopt the coating means that prior art is conventional, such as vacuum covering etc.。
On the other hand, present invention also offers the wet electrical dust precipitator of a kind of wet electrical dust precipitator anode comprised described in any one of the present invention。
Wet electrical dust precipitator of the present invention can adopt the wet electrical dust precipitator that prior art is conventional, as long as its anode replaces with the anode of structure of the present invention。
And according to some specific embodiments of the present invention, described wet electrical dust precipitator includes housing。
Housing major function is to hang the core component of electric cleaner, cathod system and anode system, and constitutes body housing。
Described wet electrical dust precipitator also includes district of power plant, spray system, electrical system etc.。
Described district of power plant includes anode, negative electrode, and it is positioned at enclosure interior；
Described housing is connected with ash bucket, and top is provided with maintenance water system；
Described spray system is positioned at enclosure interior, and is positioned at the top of anode。
Its inside of described housing has all carried out glass flake anticorrosion with smoke contacts face, is effectively reduced etching problem。
Described wet electricity anode system adopts inscribed circle to be 350mm, and joint length is 6 meters, regular hexagon tubular type, alveolate texture, modular arrangement, and anode material adopts corrosion resistant conductive nonmetal material, and cathode line adopts corrosion resistant 2205 materials。
Described anode system finished product is formed by nonmetal hexagonal honeycomb shape pipe bundle combinations, can avoid the etching problem of acid solution, simple in construction, and lightweight, operation maintenance is simple。And cellular have maximum specific dust collection area, makes mechanism compact。
Described cellular tube bank is glass steel material, and scribbles catalyst thereon, it is possible to increases its charged ratio, improves its electric conductivity。
It is provided with current equalizer in described air inlet pipe, by current equalizer, enters the flue gas of enclosure interior evenly, stably。And current equalizer adopts non-metal anti-corrosion material, it is prevented that the corrosion of the flue gas that is in operation。
Described negative electrode adopts 2205 two phase stainless steel materials, has the advantages that intensity is high, corrosion-resistant, discharge effect is good, totally 262。Cathod system entirety adopts suspended structure。
Described cathode line lower disposed weight, bottom, each electric field region is all provided with fixing device, it is prevented that cathode line is in operation swing。
Described hull outside arranges insulation, and bottom does not set insulation, and flue-gas temperature slightly reduces, and the condensation portion water yield is more beneficial for wet electrical dust precipitator and runs。
Described electrical system adopts DCS to automatically control, and DCS controls the configuration of program and revises and can carry out on corresponding generator set desulfurization host computer, and by communication network download online in the DCS of dedusting control system, communication adopts standard ethernet form。
Described host computer is arranged in desulphurization control building。
Another aspect, present invention also offers a kind of desulfurization dust-removal system, and wherein, described desulfurization dust-removal system includes wet electrical dust precipitator of the present invention and desulfurizer。
Wherein said desulfurizer can for the conventional use of desulfurizer in this area, and those skilled in the art know the structure of this desulfurizer。
According to some specific embodiments of the present invention, wherein, described wet electrical dust precipitator and desulfurizer are independent layout or overhead layout。
According to some specific embodiments of the present invention, wherein, when described wet electrical dust precipitator 1 and desulfurizer 3 are for independently arranging, described desulfurization dust-removal system also includes demister 2, described demister is arranged on desulfuration absorbing tower top, desulfurizer is arranged on desulfuration absorbing tower bottom, demister with desulfuration absorbing tower outside wet electrical dust precipitator be connected, wet electrical dust precipitator is connected 4 with smoke discharging device again。
According to some specific embodiments of the present invention, wherein, when described wet electrical dust precipitator and desulfurizer are overhead layout, wet electrical dust precipitator is disposed on desulfuration absorbing tower top, and desulfurizer 3 is arranged at desulfuration absorbing tower bottom。
According to some specific embodiments of the present invention, wherein, when described wet electrical dust precipitator and desulfurizer are overhead layout, described desulfurization dust-removal system also includes demister 2, described wet electrical dust precipitator 1 is arranged on desulfuration absorbing tower top, desulfurizer 3 is arranged on desulfuration absorbing tower bottom, and described demister 2 is arranged on the wet electrical dust precipitator in desulfuration absorbing tower and in the middle of desulfurizer, and wet electrical dust precipitator is connected with smoke discharging device 4 again。
Described smoke discharging device is this area conventional equipment, such as chimney。
The present invention program 1 is independent arrange be wet electrical dust precipitator and desulphurization system relatively independent, wet electrical dust precipitator has oneself independent steelframe to be supported, and flue gas direction as required can from bottom to top also can be from top to bottom；
It is that wet electrical dust precipitator is installed on desulfuration absorbing tower top that the present invention program 2 overhead is arranged, flue gas, from bottom to top through spray, enters wet electricity, removes fine particle further after desulfurization；Flue gas after purification is discharged from top, sends into flue collector, through chimney qualified discharge。
In sum, the invention provides a kind of wet electrical dust precipitator and anode thereof and system。The wet electrical dust precipitator of the present invention has the advantage that
The electric cleaner of the present invention adopts anode vertical (cellular) arrangement form, and its anode adopts electroconductive frp, and specific dust collection area reaches 24.5m2/(m3/ s), its efficiency of dust collection is high, and smoke dust discharge concentration can reach 5mg/m3。And process SO can be worked in coordination with3、NOx, the multiple pollutant such as Hg, really realize smoke comprehensive and administer。
Accompanying drawing explanation
Fig. 1 is that schematic diagram independently arranged by wet scrubber。
Fig. 2 is that wet scrubber overhead arranges schematic diagram。
Fig. 3 is the dedusting anode tube figure being coated with catalyst。
Fig. 4～Fig. 6 is embodiment 1 dust removing effects figure。
Detailed description of the invention
The beneficial effect of the implementation process of the present invention and generation is described in detail, it is intended to help reader to be more fully understood that essence and the feature of the present invention, not as can the restriction of practical range to this case below by way of specific embodiment。
Embodiment 1
Fig. 1, Fig. 2 are two kinds of arrangement forms of wet scrubber。Fig. 1 is that the outer ground (stand alone type) of tower is arranged, which flexible arrangement, in WESP, flue gas flow rate can optimized choice；Fig. 2 is that tower top (overhead type) arranges which characteristics of compact layout, and floor space is little, small investment。
Anode uses corrosion-resistant conductive material fiberglass, need not spray water for a long time or overflow water, have only to be periodically subject to rinse according to system operation situation, only consume minimal amount of water, this part water is recyclable, dust is eliminated, the therefore basic non-secondary pollution of dust collecting system along with the flowing washing away liquid。
Being coated with catalyst on the glass reinforced plastic pipe of anode, promote its generation substantial amounts of charged, electric conductivity is high, improves its dust-collecting efficiency。Described catalyst consists of cerium zirconium compound oxide or Manganese perovskite composite oxides；Described cerium zirconium compound oxide is CexZr1-xO2, x is 0.8, Manganese perovskite composite oxides La1-yKyMnO3, y is 0.9。
Fig. 3 is the dedusting anode tube figure being coated with catalyst of anode, it can be seen that honeycomb texture makes each pole tube-surface be precipitation surface, without dead band between the pipe of pole, increases specific dust collection area, makes compact conformation。
Wet electrical dust precipitator adopts vertical (cellular) arrangement form, the dust removing effects figure of Fig. 4, Fig. 5 and Fig. 6 can be seen that smoke dust discharge concentration < 5mg/m3。
Claims (10)
1. a wet electrical dust precipitator anode, wherein, described anode surface coating catalyst, described catalyst consists of cerium zirconium compound oxide or Manganese perovskite composite oxides；Described cerium zirconium compound oxide is CexZr1-xO2, x is 0.6-1, Manganese perovskite composite oxides La1-yKyMnO3, y is 0.8-1。
2. wet electrical dust precipitator anode according to claim 1, wherein, described anode is fiberglass。
3. wet electrical dust precipitator anode according to claim 1, wherein, described anode is hexagonal tube harness shape；It is preferably regular hexagon tube bank。
4. wet electrical dust precipitator anode according to claim 3, wherein, described catalyst is the surface being coated in hexagon tube bank。
5. wet electrical dust precipitator anode according to claim 1, wherein, the catalyst layer thickness of described anode coating is 1-2cm。
6. the wet electrical dust precipitator of the wet electrical dust precipitator anode that a kind comprises described in Claims 1 to 5 any one。
7. a desulfurization dust-removal system, wherein, described desulfurization dust-removal system includes the wet electrical dust precipitator (1) described in claim 6 and desulfurizer (3)。
8. desulfurization dust-removal system according to claim 7, wherein, described wet electrical dust precipitator (1) and desulfurizer (3) are independent layout or overhead layout。
9. desulfurization dust-removal system according to claim 8, wherein, when described wet electrical dust precipitator (1) and desulfurizer (3) are for independently arranging, described desulfurization dust-removal system also includes demister (2), described demister is arranged on desulfuration absorbing tower top, desulfurizer is arranged on desulfuration absorbing tower bottom, demister with desulfuration absorbing tower outside wet electrical dust precipitator be connected, wet electrical dust precipitator is connected (4) again with smoke discharging device。
10. desulfurization dust-removal system according to claim 8, wherein, when described wet electrical dust precipitator and desulfurizer are overhead layout, described desulfurization dust-removal system also includes demister (2), described wet electrical dust precipitator (1) is arranged on desulfuration absorbing tower top, desulfurizer (3) is arranged on desulfuration absorbing tower bottom, described demister (2) is arranged on the wet electrical dust precipitator in desulfuration absorbing tower and in the middle of desulfurizer, and wet electrical dust precipitator is connected with smoke discharging device (4) again。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610082220.2A CN105689142B (en) | 2016-02-05 | 2016-02-05 | A kind of wet electrical dust precipitator and its anode and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610082220.2A CN105689142B (en) | 2016-02-05 | 2016-02-05 | A kind of wet electrical dust precipitator and its anode and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105689142A true CN105689142A (en) | 2016-06-22 |
| CN105689142B CN105689142B (en) | 2017-11-10 |
Family
ID=56222023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610082220.2A Expired - Fee Related CN105689142B (en) | 2016-02-05 | 2016-02-05 | A kind of wet electrical dust precipitator and its anode and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105689142B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013757A1 (en) * | 2003-07-16 | 2005-01-20 | Franz Windschmitt | Method and system for removing sulfur and dust from waste gases, particularly refinery waste gases |
| CN102000632A (en) * | 2010-10-26 | 2011-04-06 | 苏州辰戈电子有限公司 | Electrostatic air cleaner |
| CN103994499A (en) * | 2014-05-06 | 2014-08-20 | 南京大学 | Plasma synergy bismuth molybdate thin film catalyzing air purification device |
| CN104190543A (en) * | 2014-08-20 | 2014-12-10 | 浙江天蓝环保技术股份有限公司 | Wet-type electric precipitator and electric precipitation desulfurization device comprising same |
| CN104258683A (en) * | 2014-09-30 | 2015-01-07 | 南京国电环保科技有限公司 | Wet-type electric precipitation system and process based on phase-change coagulation flow-equalizing technology |
| CN104289309A (en) * | 2014-10-16 | 2015-01-21 | 南通市崇川盛源净化器材厂 | Electric dust removal device and catalyst coating formula |
| CN104437865A (en) * | 2014-11-24 | 2015-03-25 | 上海华兴数字科技有限公司 | Low-ozone electrostatic equipment and indoor air purifier applying same |
| CN204564337U (en) * | 2014-12-29 | 2015-08-19 | 扬州中兴环保科技有限公司 | New and effective wet type electrostatic precipitation, demister |
-
2016
- 2016-02-05 CN CN201610082220.2A patent/CN105689142B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013757A1 (en) * | 2003-07-16 | 2005-01-20 | Franz Windschmitt | Method and system for removing sulfur and dust from waste gases, particularly refinery waste gases |
| CN102000632A (en) * | 2010-10-26 | 2011-04-06 | 苏州辰戈电子有限公司 | Electrostatic air cleaner |
| CN103994499A (en) * | 2014-05-06 | 2014-08-20 | 南京大学 | Plasma synergy bismuth molybdate thin film catalyzing air purification device |
| CN104190543A (en) * | 2014-08-20 | 2014-12-10 | 浙江天蓝环保技术股份有限公司 | Wet-type electric precipitator and electric precipitation desulfurization device comprising same |
| CN104258683A (en) * | 2014-09-30 | 2015-01-07 | 南京国电环保科技有限公司 | Wet-type electric precipitation system and process based on phase-change coagulation flow-equalizing technology |
| CN104289309A (en) * | 2014-10-16 | 2015-01-21 | 南通市崇川盛源净化器材厂 | Electric dust removal device and catalyst coating formula |
| CN104437865A (en) * | 2014-11-24 | 2015-03-25 | 上海华兴数字科技有限公司 | Low-ozone electrostatic equipment and indoor air purifier applying same |
| CN204564337U (en) * | 2014-12-29 | 2015-08-19 | 扬州中兴环保科技有限公司 | New and effective wet type electrostatic precipitation, demister |
Non-Patent Citations (1)
| Title |
|---|
| 于学华 等: ""柴油车尾气排放PM2.5氧化消除催化剂的设计、制备与催化作用"", 《中国科学：化学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105689142B (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106111334B (en) | Cavity electrodes electromagnetism ash-cleaning type electric precipitation | |
| CN204799417U (en) | Tubular conductive glass wet -type electrostatic precipitator | |
| CN208066547U (en) | A kind of wet cottrell | |
| CN104384023A (en) | Deep purifying device and method for flue gas of large coal-fired power plant | |
| CN204685291U (en) | A kind of positive plate of wet cottrell | |
| CN204745973U (en) | Filter screen formula wet -type electricity dust collector | |
| CN103721554B (en) | The electric defogging method of the fine particle in trapping wet-method desulfurized fume and device | |
| CN103817003A (en) | Vertical tube type high-pressure wet-type precision static dust remover | |
| CN104801135A (en) | Filter-screen wet-type electric dust removing device and method | |
| CN205549935U (en) | Wet -type electric precipitation secondary absorption tower | |
| CN108405184A (en) | A kind of industrial waste gas fine particle removing device | |
| CN205412573U (en) | Wet electrostatic precipitator | |
| CN206631378U (en) | Wet electrostatic exhaust treatment system | |
| CN102500188A (en) | Wet type electric dust-removing device | |
| CN209829270U (en) | Honeycomb tube type wet electrostatic dust collector | |
| CN206464078U (en) | For the rectilinear hexagonal tube rotating vane type electrostatic precipitator at the top of desulfurizing tower | |
| CN106237772B (en) | The wet type electric-bag complex dust collector of cooperation-removal multiple pollutant | |
| CN205042607U (en) | Wet electrostatic precipitator | |
| CN205308611U (en) | Combined electrode formula dust removal defogging device | |
| CN209254469U (en) | A kind of flue gas purification device | |
| CN202270577U (en) | Device for removing PM2.5 (particle matter less than 2.5 micrometers in diameter) in smoke | |
| CN207445868U (en) | A kind of ultralow dedusting demister of eddy flow charged water spray | |
| CN205340456U (en) | Flue gas dust removal system | |
| CN202398429U (en) | Wet-type electrical deduster | |
| CN204563845U (en) | A kind of annular concentric polar-plate-type dust-removing and desulfurizing integrated device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20190205 |