CN103063466A - Simulating device and simulating method of underground spray dedusting quantification - Google Patents
Simulating device and simulating method of underground spray dedusting quantification Download PDFInfo
- Publication number
- CN103063466A CN103063466A CN2013100061301A CN201310006130A CN103063466A CN 103063466 A CN103063466 A CN 103063466A CN 2013100061301 A CN2013100061301 A CN 2013100061301A CN 201310006130 A CN201310006130 A CN 201310006130A CN 103063466 A CN103063466 A CN 103063466A
- Authority
- CN
- China
- Prior art keywords
- water
- spray
- quantification
- dedusting
- coal dust
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses a simulating device and a simulating method of underground spray dedusting quantification. The device comprises an air blower, a coal dust chamber, sieves, a spray chamber, spray heads and the like. Coal dust with different grain diameters is blown through the air blower, wherein the grain diameter range of the coal dust can be realized through the sieves with different bore diameters and combination of the sieves, and then removal efficiency of the coal dust with different grain diameters and different concentrations by means of spray dedusting is enabled to be tested conveniently, and quantification of spray-used water is achieved according to the dust removal efficiency. The spray-used water is enabled to pass through a pipeline carrying coal gangue of a working seam to simulate change of water quality of the spray-used water after the spray-used water passes through a roadway, and influence of the change of the water quality on underground water is tested, influence of other ions in the water on the deducting effect after the circulating spray-used water is filtered with a conventional coagulation method and suspended matter is up to standard is tested, and therefore guidance is provided for selection of an appropriate mine water processing method, the quantification of the spray-used water is achieved according to the dust removal efficiency, the changing rule of the water quality in the roadway is obtained, and guidance is provided for selection of the appropriate mine water processing method and the coagulant type.
Description
Technical field
The invention belongs to the spraying and dedusting technical field, relate in particular to a kind of down-hole spraying and dedusting quantification analogue means and method.
Background technology
In process of coal mining, such as jewel hole, explosion, driving and coal mining activity, roof control, the links such as the loading transportation of coal all can produce a large amount of dust. and the down-hole spraying and dedusting is existing dedusting method commonly used.Mining area, north major part is in the water-deficient area, and coal mining causes groundwater level, and mine water has become the important water resource in mining area.Now, the mining area mine water is through after simply filtration/coagulation and filtration (SS 30) or counter-infiltration even depth are processed, the overwhelming majority enters mine, be used for dust removing down-hole (taking the water yield overwhelming majority) and fire-fighting, the spraying and dedusting water consumption is not carried out the quantitative of science, thereby might cause the huge waste of water resource, also might increase groundwater pollution.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of down-hole spraying and dedusting quantification analogue means and method, be intended to solve the mining area mine water through after simply filtration/coagulation and filtration (SS 30) or counter-infiltration even depth are processed, the overwhelming majority enters mine, be used for dust removing down-hole (taking the water yield overwhelming majority) and fire-fighting, the spraying and dedusting water consumption is not carried out the quantitative of science, thereby might cause the huge waste of water resource, also might increase the problem to groundwater pollution.
The embodiment of the invention is achieved in that a kind of down-hole spraying and dedusting quantification analogue means, and this down-hole spraying and dedusting quantification analogue means comprises:
Fan blower: be used for the coal dust of pulverizing is sent into spray chamber;
Coal dust chamber: the coal dust that is used for being loaded with various particle diameters;
Sieve is comprised of the sieve in various apertures, is used for selecting as required the coal dust in the different-grain diameter scope, in order to investigate spray to the coal dust removal effect of different-grain diameter;
Spray chamber: be used for the simulation lane space;
Shower nozzle: the mine water that spray is processed, be used for dedusting, its shower nozzle area is by the area of spray chamber;
The pipeline of gangue is housed: be used for the simulation underworkings, in order to investigate shower water through the tunnel change of water quality;
Adopt mining area coagulation and filtration technique, take suspension as index, be used for determining that water heavy metal, sulfate radical, nitrate nitrogen and ammonium nitrogen are on the coagulation and filtration chamber of the impact of dust removing effects;
Gas sample mouth: be used for extracting gases, gas componant is analyzed, thereby estimate dust removing effects.
Further, spray chamber is shaped as rectangular parallelepiped, top and is furnished with shower nozzle, the bottom is osculum.
Another object of the present invention is to provide a kind of down-hole spraying and dedusting quantification analogy method, the particle size range of coal dust can be passed through different pore size (150 orders, 1600 orders and 6000 orders) sieve and the combination with the simulation TSP, PM10 and PM2.5 and interval suspended particulate substance, investigate the different water yields, water quality (different cycle indexes also can artificially be added certain pollutant of variable concentrations gradient as required through the water quality of the coagulation and filtration of routine) is to the removal effect (water-quality guideline: suspension (SS) of the dust granules thing of variable concentrations and particle diameter, heavy metal, sulfate radical, nitrate nitrogen and ammonium nitrogen); Atmosphere suspended particulate substance index: TSP, PM10 and PM2.5; Harmful gas index: harmful gas in the ore deposit safety regulations (the 13 edition)), determine best water consumption, thereby spray-water is carried out quantification.
The analogue means of spraying and dedusting provided by the invention and method are studied the impact of dust removing effects particle diameter and the concentration of spray water quality, cycle index, dust, thereby provide scientific basis for the quantification of spraying and dedusting water consumption; Also can grasp the Changing Pattern of the mine water water quality in the tunnel behind the spraying and dedusting; And provide guidance to the selection of rational mine water treatment technique or coagulant kind.
Description of drawings
Fig. 1 is the structural representation of the analogue means of the spraying and dedusting that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing 1 and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention is used for mechanism and the Quantitative study of mine water underground spraying and dedusting, a kind of down-hole spraying and dedusting quantification analogy method is provided, blast the coal dust of different-grain diameter by fan blower, the particle size range of coal dust can realize by sieve and the combination of different pore size, in order to investigate spraying and dedusting to the coal dust of different-grain diameter and the removal effect of concentration, and according to dust removing effects spray-water is carried out quantification.
Make the pipeline of the gangue of shower water by being loaded with working seam, with the variation of simulation shower water water quality behind the tunnel, investigate change of water quality to the impact of underground water, and the shower water of circulation is through conventional coagulation and filtration, after up to standard, the impact of other ion pair dust removing effects in the water.For the selection of suitable mine water treatment technique or coagulant kind provides guidance, and according to dust removing effects spray-water is carried out quantification.
This down-hole spraying and dedusting quantification analogue means comprises:
Fan blower: be used for the coal dust of pulverizing is sent into spray chamber;
Coal dust chamber: the coal dust that is used for being loaded with various particle diameters;
Sieve is comprised of the sieve in various apertures, is used for selecting as required the coal dust in the different-grain diameter scope, in order to investigate spray to the coal dust removal effect of different-grain diameter;
Spray chamber: be used for the simulation lane space;
Shower nozzle: the mine water that spray is processed, be used for dedusting, its shower nozzle area is by the area of spray chamber;
The pipeline of gangue is housed: be used for the simulation underworkings, in order to investigate shower water through the tunnel change of water quality;
Adopt mining area coagulation and filtration technique, take suspension as index, be used for determining that water heavy metal, sulfate radical, nitrate nitrogen and ammonium nitrogen are on the coagulation and filtration chamber of the impact of dust removing effects;
Gas sample mouth: be used for extracting gases, gas componant is analyzed, thereby estimate dust removing effects.
In embodiments of the present invention, spray chamber is shaped as rectangular parallelepiped, top and is furnished with shower nozzle, the bottom is osculum.
As shown in Figure 1, the embodiment of the invention also provides a kind of down-hole spraying and dedusting quantification analogue means, and primary structure is:
Fan blower-coal dust chamber-sieve (different pore size)-spray chamber (be shaped as rectangular parallelepiped, top be furnished with shower nozzle, the bottom is osculum)-plastic tube (in be loaded with gangue)-treating apparatus (coagulation/filtering technique)-shower nozzle.
The Main Function of each several part is: fan blower: the coal dust of pulverizing is sent into spray chamber; Coal dust chamber: the coal dust that is loaded with various particle diameters; Sieve is comprised of the sieve in various apertures, can select as required the coal dust in the different-grain diameter scope, in order to investigate spray to the coal dust removal effect of different-grain diameter; Spray chamber: simulation lane space; Shower nozzle: the mine water that spray is processed, be used for dedusting, its shower nozzle area is by the area of spray chamber; The pipeline of gangue is housed: be used for the simulation underworkings, in order to investigate shower water through the tunnel change of water quality;
The mine water treatment facility is: adopt mining area coagulation and filtration technique commonly used, take the SS(suspension) be index, investigation is except the SS(suspension) impact of other ion pair dust removing effects of water quality.
Gas sample mouth: be used for extracting gases, gas componant is analyzed, thereby estimate dust removing effects.
The embodiment of the invention also provides a kind of down-hole spraying and dedusting quantification analogy method, the particle size range of coal dust can be passed through different pore size (150 orders, 1600 orders and 6000 orders) sieve and the combination with the simulation TSP, PM10 and PM2.5 and interval suspended particulate substance, investigate the different water yields, water quality (different cycle indexes also can artificially be added certain pollutant of variable concentrations gradient as required through the water quality of the coagulation and filtration of routine) is to the removal effect (water-quality guideline: suspension (SS) of the dust granules thing of variable concentrations and particle diameter, heavy metal, sulfate radical, nitrate nitrogen and ammonium nitrogen); Atmosphere suspended particulate substance index: TSP, PM10 and PM2.5; Harmful gas index: harmful gas in the ore deposit safety regulations (the 13 edition)), determine best water consumption, thereby spray-water is carried out quantification.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a down-hole spraying and dedusting quantification analogue means is characterized in that, this down-hole spraying and dedusting quantification analogue means comprises:
Fan blower: be used for the coal dust of pulverizing is sent into spray chamber;
Coal dust chamber: the coal dust that is used for being loaded with various particle diameters;
Sieve is comprised of the sieve in various apertures, is used for selecting as required the coal dust in the different-grain diameter scope, investigates spray to the coal dust removal effect of different-grain diameter;
Spray chamber: be used for the simulation lane space;
Shower nozzle: the mine water that spray is processed, be used for dedusting, its shower nozzle area is by the area of spray chamber;
The pipeline of gangue is housed: be used for the simulation underworkings, investigate shower water through the tunnel change of water quality;
Adopt mining area coagulation and filtration technique, take suspension as index, be used for determining that water heavy metal, sulfate radical, nitrate nitrogen and ammonium nitrogen are on the coagulation and filtration chamber of the impact of dust removing effects;
Gas sample mouth: be used for extracting gases, gas componant is analyzed, thereby estimate dust removing effects.
2. down-hole as claimed in claim 1 spraying and dedusting quantification analogue means is characterized in that, spray chamber is shaped as rectangular parallelepiped, top is furnished with shower nozzle, the bottom is osculum.
3. down-hole spraying and dedusting quantification analogy method, it is characterized in that, fan blower by air volume controlled blasts the coal dust more than 150 orders, the particle size range of coal dust can be by different pore size sieve and combination with simulation TSP, PM10 and PM2.5 and interval suspended particulate substance, investigate the different water yields, water quality to the removal effect of the dust granules thing of variable concentrations and particle diameter; Determine best water consumption, thereby spray-water is carried out quantification.
4. down-hole as claimed in claim 3 spraying and dedusting quantification analogy method is characterized in that the particle size range of coal dust can be 150 orders, 1600 orders and 6000 orders by different pore size.
5. down-hole as claimed in claim 3 spraying and dedusting quantification analogy method is characterized in that, investigates different cycle indexes through the water quality of coagulation and filtration, also can artificially add as required certain pollutant of variable concentrations gradient.
6. down-hole as claimed in claim 3 spraying and dedusting quantification analogy method is characterized in that water-quality guideline: suspension (SS), heavy metal, sulfate radical, nitrate nitrogen and ammonium nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310006130.1A CN103063466B (en) | 2013-01-08 | 2013-01-08 | A kind of down-hole spraying and dedusting quantification analogue means and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310006130.1A CN103063466B (en) | 2013-01-08 | 2013-01-08 | A kind of down-hole spraying and dedusting quantification analogue means and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103063466A true CN103063466A (en) | 2013-04-24 |
| CN103063466B CN103063466B (en) | 2015-12-02 |
Family
ID=48106181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310006130.1A Expired - Fee Related CN103063466B (en) | 2013-01-08 | 2013-01-08 | A kind of down-hole spraying and dedusting quantification analogue means and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103063466B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485301A (en) * | 2013-09-27 | 2014-01-01 | 北京市市政工程研究院 | Simulation system and method for suppressing road dust and reducing PM2.5 (particulate matter 2.5) |
| CN103543242A (en) * | 2013-11-05 | 2014-01-29 | 中海油能源发展股份有限公司惠州石化分公司 | Device for testing and evaluating dust suppression rate of dust suppressant |
| CN103712906A (en) * | 2013-12-25 | 2014-04-09 | 北京科技大学 | Test box for simulating corrosion of PM2.5 (particulate matter 2.5) polluted environment |
| CN104296958A (en) * | 2014-09-12 | 2015-01-21 | 山东科技大学 | Coal mine underground PM2.5 concentration simulation detecting system |
| CN104390799A (en) * | 2014-11-13 | 2015-03-04 | 山东科技大学 | Experimental device for simulating dust-laden airflow migration on multi-dust source working face of coal mine |
| CN104849088A (en) * | 2015-06-09 | 2015-08-19 | 福州汇智集佳电子技术有限公司 | Haze-removing efficiency testing system |
| CN105043795A (en) * | 2015-06-09 | 2015-11-11 | 福州汇智集佳电子技术有限公司 | Test method based on haze removing efficiency test system |
| CN105682842A (en) * | 2013-10-31 | 2016-06-15 | 千住金属工业株式会社 | Flux recovery device and soldering device |
| CN105920955A (en) * | 2016-04-27 | 2016-09-07 | 桂林电子科技大学 | Blowing-drawing-type dust removal system for underground space |
| CN105928724A (en) * | 2016-06-02 | 2016-09-07 | 长春机械科学研究院有限公司 | Drilling cutting transport microcirculation unit test method and test device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5219543A (en) * | 1990-12-08 | 1993-06-15 | Metallgesellschaft Aktiengesellschaft | Process and apparatus for removing dust, sulfur compounds and nitrogen oxides from combustion exhaust gases |
| CN1555904A (en) * | 2003-12-31 | 2004-12-22 | 郭树成 | Dust settling and cleaning technology of light coal tar recovered from lime kiln gas |
| CN201454331U (en) * | 2009-06-11 | 2010-05-12 | 桐昆集团股份有限公司 | Environmental-friendly spraying device for dust removal and fog dissipation |
| WO2010076853A1 (en) * | 2008-12-30 | 2010-07-08 | Uehara Kyomasa | Method for dust removal and cleaning of polluted gas by water washing |
| CN101845961A (en) * | 2010-05-28 | 2010-09-29 | 山东科技大学 | Bracket spraying dust reduction emulation simulation device for coal mine working surface |
| CN201594187U (en) * | 2009-10-23 | 2010-09-29 | 内蒙古满世煤炭集团罐子沟煤炭有限责任公司 | Automatic dust removal control system for coal mine |
| CN102100995A (en) * | 2009-12-22 | 2011-06-22 | 扬州成功机械有限公司 | Dust removal equipment special for coal mines |
| DE102010023234A1 (en) * | 2010-06-09 | 2011-12-15 | Rag Aktiengesellschaft | Method for controlling dust in underground mining with water spray system in mining operations, involves measuring current value of water pressure in area of nozzle or nozzle groups |
| WO2012112040A1 (en) * | 2011-02-15 | 2012-08-23 | Uc Technologies | Detection apparatus |
-
2013
- 2013-01-08 CN CN201310006130.1A patent/CN103063466B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5219543A (en) * | 1990-12-08 | 1993-06-15 | Metallgesellschaft Aktiengesellschaft | Process and apparatus for removing dust, sulfur compounds and nitrogen oxides from combustion exhaust gases |
| CN1555904A (en) * | 2003-12-31 | 2004-12-22 | 郭树成 | Dust settling and cleaning technology of light coal tar recovered from lime kiln gas |
| WO2010076853A1 (en) * | 2008-12-30 | 2010-07-08 | Uehara Kyomasa | Method for dust removal and cleaning of polluted gas by water washing |
| CN201454331U (en) * | 2009-06-11 | 2010-05-12 | 桐昆集团股份有限公司 | Environmental-friendly spraying device for dust removal and fog dissipation |
| CN201594187U (en) * | 2009-10-23 | 2010-09-29 | 内蒙古满世煤炭集团罐子沟煤炭有限责任公司 | Automatic dust removal control system for coal mine |
| CN102100995A (en) * | 2009-12-22 | 2011-06-22 | 扬州成功机械有限公司 | Dust removal equipment special for coal mines |
| CN101845961A (en) * | 2010-05-28 | 2010-09-29 | 山东科技大学 | Bracket spraying dust reduction emulation simulation device for coal mine working surface |
| DE102010023234A1 (en) * | 2010-06-09 | 2011-12-15 | Rag Aktiengesellschaft | Method for controlling dust in underground mining with water spray system in mining operations, involves measuring current value of water pressure in area of nozzle or nozzle groups |
| WO2012112040A1 (en) * | 2011-02-15 | 2012-08-23 | Uc Technologies | Detection apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 俞光明: "水泥机立窑窑尾烟气水雾喷淋除尘治理技术", 《江苏环境科技》 * |
| 栾昌才，陈荣策: "国内外矿用湿式除尘器发展概况", 《煤矿安全》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485301A (en) * | 2013-09-27 | 2014-01-01 | 北京市市政工程研究院 | Simulation system and method for suppressing road dust and reducing PM2.5 (particulate matter 2.5) |
| CN105682842B (en) * | 2013-10-31 | 2017-06-30 | 千住金属工业株式会社 | Flux retracting device and soft soldering apparatus |
| CN105682842A (en) * | 2013-10-31 | 2016-06-15 | 千住金属工业株式会社 | Flux recovery device and soldering device |
| CN103543242A (en) * | 2013-11-05 | 2014-01-29 | 中海油能源发展股份有限公司惠州石化分公司 | Device for testing and evaluating dust suppression rate of dust suppressant |
| CN103712906B (en) * | 2013-12-25 | 2016-06-15 | 北京科技大学 | A kind of simulation PM2.5Contaminated environment corrosion test chamber |
| CN103712906A (en) * | 2013-12-25 | 2014-04-09 | 北京科技大学 | Test box for simulating corrosion of PM2.5 (particulate matter 2.5) polluted environment |
| CN104296958A (en) * | 2014-09-12 | 2015-01-21 | 山东科技大学 | Coal mine underground PM2.5 concentration simulation detecting system |
| CN104390799A (en) * | 2014-11-13 | 2015-03-04 | 山东科技大学 | Experimental device for simulating dust-laden airflow migration on multi-dust source working face of coal mine |
| CN104390799B (en) * | 2014-11-13 | 2017-08-11 | 山东科技大学 | A kind of distinguished and admirable migration nature imitation experiment device of colliery Duo Chen sources working face dust-laden |
| CN104849088B (en) * | 2015-06-09 | 2016-03-30 | 福州汇智集佳电子技术有限公司 | A kind of haze elimination efficiency test macro |
| CN105043795A (en) * | 2015-06-09 | 2015-11-11 | 福州汇智集佳电子技术有限公司 | Test method based on haze removing efficiency test system |
| CN104849088A (en) * | 2015-06-09 | 2015-08-19 | 福州汇智集佳电子技术有限公司 | Haze-removing efficiency testing system |
| CN105920955A (en) * | 2016-04-27 | 2016-09-07 | 桂林电子科技大学 | Blowing-drawing-type dust removal system for underground space |
| CN105928724A (en) * | 2016-06-02 | 2016-09-07 | 长春机械科学研究院有限公司 | Drilling cutting transport microcirculation unit test method and test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103063466B (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103063466B (en) | A kind of down-hole spraying and dedusting quantification analogue means and method | |
| Mironova et al. | Defining the parameters of the atmospheric air for iron ore mines | |
| Pavlychenko et al. | The investigation of rock dumps influence to the levels of heavy metals contamination of soil | |
| Abdollahisharif et al. | Green biocompatible approach to reduce the toxic gases and dust caused by the blasting in surface mining | |
| Boente et al. | Soil washing optimization by means of attributive analysis: Case study for the removal of potentially toxic elements from soil contaminated with pyrite ash | |
| Nwaila et al. | Valorisation of mine waste-Part I: Characteristics of, and sampling methodology for, consolidated mineralised tailings by using Witwatersrand gold mines (South Africa) as an example | |
| Zhou et al. | CFD modeling of methane distribution at a continuous miner face with various curtain setback distances | |
| Lu et al. | Experimental investigation and field application of foam used for suppressing roadheader cutting hard rock in underground tunneling | |
| CN112557612B (en) | Method for analyzing heavy metal pollution source and pollution boundary of underground water in metal mining area by using water system sediments | |
| Wang et al. | CFD-based optimization of the installation location of the wall-mounted air duct in a fully mechanized excavation face | |
| Minguillón et al. | Air quality comparison between two European ceramic tile clusters | |
| CN104390799A (en) | Experimental device for simulating dust-laden airflow migration on multi-dust source working face of coal mine | |
| McCawley | Air contaminants associated with potential respiratory effects from unconventional resource development activities | |
| Jha et al. | Scale model investigation of ventilation parameters in a block cave mine | |
| Gao et al. | Determination of optimal blowing-to-suction flow ratio in mechanized excavation face with wall-mounted swirling ventilation using numerical simulations | |
| Abdollahisharif et al. | Monitoring and assessment of pollutants resulting from bench-blasting operations | |
| CN104121035A (en) | Underground coal mine gas adsorbing material and adsorbing device | |
| CN116020218B (en) | Engineering stone ecological environment comprehensive treatment system | |
| Tripathy et al. | Processing of chromite ultra-fines in a water only cyclone | |
| CN104291399A (en) | Treatment method of water body in coal mine underground reservoir | |
| RU2465586C1 (en) | Method of determining environmental risk in mining operations | |
| Khomenko et al. | Technology for increasing the level of environmental safety of iron ore mines with use of emulsion explosives | |
| Du et al. | Assessment of shallow aquifer remediation capacity under different groundwater management conditions in CGS field | |
| Putra et al. | Removal characteristics of silver with electrokinetic by adsorption on soil mineral from Kotagede Yogyakarta | |
| Krasovskyi | MODELING OF THE PROCESS OF MIGRATION OF CHEMICAL ELEMENTS IN COAL DUMPS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20151202 Termination date: 20170108 |