CN204474704U - The partition rotary kiln device of coking ironmaking cogeneration - Google Patents
The partition rotary kiln device of coking ironmaking cogeneration Download PDFInfo
- Publication number
- CN204474704U CN204474704U CN201520089827.4U CN201520089827U CN204474704U CN 204474704 U CN204474704 U CN 204474704U CN 201520089827 U CN201520089827 U CN 201520089827U CN 204474704 U CN204474704 U CN 204474704U
- Authority
- CN
- China
- Prior art keywords
- rotary kiln
- coking
- kiln
- equipment
- cogeneration
- 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.)
- Withdrawn - After Issue
Links
- 238000004939 coking Methods 0.000 title claims abstract description 45
- 238000005192 partition Methods 0.000 title claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 115
- 229910052742 iron Inorganic materials 0.000 claims abstract description 58
- 238000006722 reduction reaction Methods 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 39
- 230000002829 reduced Effects 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000002309 gasification Methods 0.000 claims abstract description 10
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 9
- 239000003765 sweetening agent Substances 0.000 claims abstract description 9
- 235000003599 food sweetener Nutrition 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003245 coal Substances 0.000 claims description 13
- 239000000571 coke Substances 0.000 claims description 12
- 239000012256 powdered iron Substances 0.000 claims description 11
- 238000005296 abrasive Methods 0.000 claims description 9
- 210000000038 chest Anatomy 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 6
- 239000003517 fume Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002817 coal dust Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000003009 desulfurizing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model relates to the partition rotary kiln device of a kind of coking ironmaking cogeneration, and comprise coking rotary kiln, reduction iron production rotary kiln and cogeneration unit, coking rotary kiln and reduction iron production rotary kiln are dividing wall type structure.The coke-oven gas outlet of coking rotary kiln is connected to the entrance of press by dehydration equipment, tar extraction equipment and sweetener, the outlet of press is connected to the reducing gas entrance of reduction iron production rotary kiln by interchanger.After the reduction of reduction iron production rotary kiln, pneumatic outlet is connected to the gasification agent inlet of coking rotary kiln.The exhanst gas outlet of coking rotary kiln and reduction iron production rotary kiln is connected to exhaust emission system by cogeneration unit and interchanger.The utility model is by coking rotary kiln, reduction iron production rotary kiln and cogeneration unit associations, coke-oven gas is used as the reductive agent of reduction iron production, and the gas after reduction iron production is used as coking gas agent, the useless fume afterheat generating of discharge, be conducive to reducing energy consumption and production costs, increase economic efficiency.
Description
Technical field
The utility model belongs to chemical metallurgy material production equipment technical field, relates to a kind of rotary kiln, is specifically related to the partition rotary kiln device of a kind of coking ironmaking cogeneration.
Background technology
Reduction iron production is lower than under ore softening temperature with gas or solid reductant, in reaction unit, iron ore or reduction of iron ore fines are become metallic iron, this iron remains the profile before oxygen loss, because oxygen loss forms a large amount of microporosity, sponge structure is similar under microscope, therefore also known as sponge iron.Kiln process reduction iron production mill coal is made reductive agent and is sent in the rotary kiln that slightly tilts, from kiln hood and kiln body multiple spot and send into air, spray into from kiln hood the CO and carbon that the volatile matter that discharges the reduction coal that He Yaowei adds and reduction reaction produce in order to combustion-supporting, obtain 950 ~ 1100 DEG C of high temperature and the heat of reaction needed, the reduction of iron ore added from kiln tail is become sponge iron, obtains direct-reduced iron through cooling, screening, magnetic separation.
Publication number be the patent of invention of CN103757168A open " a kind of ironmaking rotary kiln and iron-smelting process thereof, iron-smelting process, carries out: (1) burning gas preheating in the steps below; (2) rotary kiln heating; (3) smelt iron; Ironmaking rotary kiln, comprises regenerator, rotary kiln, device for recovering tail gas; Described regenerator comprises gas regenerator and air regenerator; Like this by the temperature increase in kiln to 1700 DEG C, can realize smelting iron object with rotary kiln, the technique of the traditional blast furnace ironmaking of such change, reduce group ball, sintering process, save coal consumption, reduce the process procedure of ironmaking, reduce the production link of ironmaking, thus reduce costs and pollution to environment ".This rotary kiln is common rotary kiln, and powdered iron ore enters in kiln body after mixing with raw materials such as coal dusts and reduces, and the sulphur in coal dust, phosphorus and the ash impurity that grades enters in reducing material the quality affecting reduction.
Utility model content
The purpose of this utility model is to provide the partition rotary kiln device of a kind of coking ironmaking cogeneration, produces reduced iron, coke and electric power simultaneously, improves the production efficiency of rotary kiln and the quality of reduced iron, reduces energy expenditure and production cost.
The technical solution of the utility model is: the partition rotary kiln device of coking ironmaking cogeneration, comprises coking rotary kiln, reduction iron production rotary kiln, cogeneration unit, Pulverized Coal Bin, powdered iron ore feed bin and exhaust emission system.Coking rotary kiln and reduction iron production rotary kiln are dividing wall type structure, are made up of respectively annular materials space, kiln thorax, kiln head cover, kiln hood, reinforced ring and discharging ring.The kiln head cover side of kiln thorax is provided with burner, and kiln hood side is provided with exhanst gas outlet.The reinforced of coking rotary kiln is equipped with coke-oven gas outlet, and discharging is equipped with gasification agent inlet.The reinforced of reduction iron production rotary kiln is equipped with the rear pneumatic outlet of reduction, and discharging is equipped with reducing gas entrance.Pulverized Coal Bin is by the annular materials spatial joins of feed in raw material ring and coking rotary kiln, and annular materials space is connected to coke water cooler by discharging ring.Powdered iron ore feed bin is by the annular materials spatial joins of feed in raw material ring and reduction iron production rotary kiln, and annular materials space is connected to reduced iron water cooler by discharging ring.Device is provided with dehydration equipment, tar extraction equipment, sweetener, press and interchanger, coke-oven gas outlet is connected to the entrance of press by dehydration equipment, tar extraction equipment and sweetener, the outlet of press is connected to reducing gas entrance by interchanger.After reduction, pneumatic outlet is connected to gasification agent inlet.The exhanst gas outlet of coking rotary kiln and reduction iron production rotary kiln is connected to cogeneration unit, and the exhanst gas outlet of cogeneration unit is connected to exhaust emission system by interchanger.
Device is provided with abrasive dust and handling equipment, and coke cooler outlet is connected to the fuel inlet of burner by abrasive dust and handling equipment.Device is provided with electrosmelting equipment, and reduced iron cooler outlet is connected to electrosmelting equipment.Device is provided with converting equipment, and cogeneration unit is connected to electrosmelting equipment by converting equipment or is connected with electrical network.Cogeneration unit comprises waste heat boiler, steam turbine and generator, and waste heat boiler is provided with steam coils, and steam coils is connected with steam turbine, and steam turbine is connected with generator shaft.Burner is geseous fuel burner, liquid fuel burner or solid fuel burner.
The partition rotary kiln device of the utility model coking ironmaking cogeneration is by coking rotary kiln, reduction iron production rotary kiln and cogeneration unit associations, the coke-oven gas that high-temperature-coked process produces is used as the reductive agent of reduction iron production after proposing oil and purification, improves the quality of reduced iron.Gas after reduction iron production is used as the vaporized chemical of coking, effectively make use of the rear waste gas of reduction, optimizes coal gasification course, improve the productive rate of coking coke-oven gas.Utilize the useless fume afterheat generating of discharging, heat is fully used, is conducive to reducing energy expenditure and production cost, increases economic efficiency.The electric power of cogeneration unit is used as the electric power of electrosmelting equipment, is conducive to reducing iron-making and steel-making cost.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the partition rotary kiln device of the utility model coking ironmaking cogeneration;
Wherein:
1-kiln hood, 2-reinforced ring, 3-Pulverized Coal Bin, 4-coking rotary kiln, 5-annular materials space, 6-kiln thorax, 7-discharging ring, 8-kiln head cover, 9-burner, 10-coke water cooler, 11-dehydration equipment, 12-tar extraction equipment, 13-cogeneration unit, 14-sweetener, 15-press, 16-exhaust emission system, 17-interchanger, 18-abrasive dust and handling equipment, 19-powdered iron ore feed bin, pneumatic outlet after 20-reduction, 21-converting equipment, 22-reducing gas entrance, 23-reduced iron water cooler, 24-electrosmelting equipment, 25-reduction iron production rotary kiln, 26-coke-oven gas exports, 27-gasification agent inlet.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.The utility model protection domain is not limited to embodiment, and those skilled in the art make the scope that any change also belongs to the utility model protection in the scope that claim limits.
The partition rotary kiln device of the utility model coking ironmaking cogeneration as described in Figure 1, comprises coking rotary kiln 4, reduction iron production rotary kiln 25, cogeneration unit 13, electrosmelting equipment 24, converting equipment 21, abrasive dust and handling equipment 18, Pulverized Coal Bin 3, powdered iron ore feed bin 19, dehydration equipment 11, tar extraction equipment 12, cogeneration unit 13, sweetener 14, press 15, interchanger 17 and exhaust emission system 16.Coking rotary kiln and reduction iron production rotary kiln are dividing wall type structure, are made up of respectively annular materials space 5, kiln thorax 6, kiln head cover 8, kiln hood 1, reinforced ring 2 and discharging ring 7.The kiln head cover side of kiln thorax is provided with burner 9, and kiln hood side is provided with exhanst gas outlet.Coking rotary kiln is provided with coke water cooler 10, and reduction iron production rotary kiln is provided with reduced iron water cooler 23.The reinforced of coking rotary kiln is equipped with coke-oven gas outlet 26, and discharging is equipped with gasification agent inlet 27.The reinforced of reduction iron production rotary kiln is equipped with the rear pneumatic outlet 20 of reduction, and discharging is equipped with reducing gas entrance 22.Pulverized Coal Bin is by the annular materials spatial joins of feed in raw material ring and coking rotary kiln, and annular materials space is connected to coke water cooler by discharging ring, and coke cooler outlet is connected to the fuel inlet of burner 9 by abrasive dust and handling equipment.Powdered iron ore feed bin is by the annular materials spatial joins of feed in raw material ring and reduction iron production rotary kiln, and annular materials space is connected to reduced iron water cooler by discharging ring, and reduced iron water cooler 23 outlet is connected to electrosmelting equipment.Coke-oven gas outlet is connected to the entrance of press by dehydration equipment, tar extraction equipment and sweetener, the outlet of press is connected to reducing gas entrance by interchanger.The exhanst gas outlet of coking rotary kiln and reduction iron production rotary kiln is connected to cogeneration unit, and the exhanst gas outlet of cogeneration unit is connected to exhaust emission system by interchanger.After reduction, pneumatic outlet 20 is connected to gasification agent inlet 27.Cogeneration unit 13 comprises waste heat boiler, steam turbine and generator, and waste heat boiler is provided with steam coils, and steam coils is connected with steam turbine, and steam turbine is connected with generator shaft.Generator is connected to electrosmelting equipment by converting equipment 21.Exhaust emission system comprises sack cleaner, induced draft fan and chimney.
The operational process of the partition rotary kiln device of the utility model coking ironmaking cogeneration is: in Pulverized Coal Bin 3, coal dust enters the annular materials space 5 of coking rotary kiln 4 through reinforced ring 2, material in high-temperature flue gas partition heating annular materials space in kiln thorax 6, destructive distillation is carried out to coal dust, the coke-oven gas produced dewaters to dehydration equipment 11 through coke-oven gas outlet 26, then extracts after tar, sweetener 14 desulfurization to press 15 supercharging through tar extraction equipment 12.After pressurization, coal gas enters through reducing gas entrance 22 reducing gas that reduction iron production is made in the annular materials space reverting back rotary kiln after interchanger 17 with useless flue gas heat exchange.The solid phase prod coke of destructive distillation cools to coke water cooler 10 through discharging ring, and the burner 9 that cooled coke is transported to coking rotary kiln and reduction iron production rotary kiln after abrasive dust and handling equipment 18 abrasive dust makes fuel.Powdered iron ore in powdered iron ore feed bin 19 enters the annular materials space 5 of reduction iron production rotary kiln through reinforced ring 2, and the material in the flue gas partition heating annular materials space that burner 9 burning produces in kiln thorax 6, powdered iron ore is reduced into metallic iron in reducing atmosphere.Reduced iron enters reduced iron water cooler 23 through discharging ring, and cooled sponge iron carries out refining to electrosmelting equipment 24.Gas after reduction is rich in H
2and CO, after reduction, pneumatic outlet 20 and gasification agent inlet 27 make vaporized chemical to the annular materials space of coking rotary kiln.H in vaporized chemical
2o and CO
2react with carbon and generate H
2and CO, expand the reducing gas composition in coke-oven gas.The flue gas of two rotary kiln exhanst gas outlets, to cogeneration unit, utilizes fume afterheat generation steam, and steam driven Steam Turbine drive electrical generators generates electricity, and the electric power sent is transported to the electric power that electrosmelting equipment makes deoxy iron-smelting after converting equipment 21 transformation.Discharge to exhaust emission system after distributing the useless flue gas after electricity and reducing gas heat exchange.
Claims (5)
1. the partition rotary kiln device of a coking ironmaking cogeneration, comprise coking rotary kiln (4), reduction iron production rotary kiln (25), cogeneration unit (13), Pulverized Coal Bin (3), powdered iron ore feed bin (19) and exhaust emission system (16), described coking rotary kiln and reduction iron production rotary kiln are dividing wall type structure, are made up of respectively annular materials space (5), kiln thorax (6), kiln head cover (8), kiln hood (1), reinforced ring (2) and discharging ring (7); The kiln head cover side of kiln thorax is provided with burner (9), and kiln hood side is provided with exhanst gas outlet; The reinforced of coking rotary kiln is equipped with coke-oven gas outlet (26), and discharging is equipped with gasification agent inlet (27); The reinforced of reduction iron production rotary kiln is equipped with the rear pneumatic outlet (20) of reduction, and discharging is equipped with reducing gas entrance (22); Described Pulverized Coal Bin is by the annular materials spatial joins of feed in raw material ring and coking rotary kiln, and described annular materials space is connected to coke water cooler (10) by discharging ring; Described powdered iron ore feed bin is by the annular materials spatial joins of feed in raw material ring and reduction iron production rotary kiln, and described annular materials space is connected to reduced iron water cooler (23) by discharging ring; It is characterized in that: described device is provided with dehydration equipment (11), tar extraction equipment (12), sweetener (14), press (15) and interchanger (17), described coke-oven gas outlet is connected to the entrance of press by dehydration equipment, tar extraction equipment and sweetener, the outlet of press is connected to reducing gas entrance by interchanger; After described reduction, pneumatic outlet (20) is connected to gasification agent inlet (27); The exhanst gas outlet of described coking rotary kiln and reduction iron production rotary kiln is connected to cogeneration unit, and the exhanst gas outlet of cogeneration unit is connected to exhaust emission system by interchanger.
2. the partition rotary kiln device of coking ironmaking cogeneration according to claim 1, it is characterized in that: described device is provided with abrasive dust and handling equipment (18), described coke water cooler (10) outlet is connected to the fuel inlet of burner (9) by abrasive dust and handling equipment.
3. the partition rotary kiln device of coking ironmaking cogeneration according to claim 1, is characterized in that: described device is provided with electrosmelting equipment (24), and described reduced iron water cooler (23) outlet is connected to electrosmelting equipment.
4. the partition rotary kiln device of coking ironmaking cogeneration according to claim 3, it is characterized in that: described device is provided with converting equipment (21), described cogeneration unit is connected to electrosmelting equipment by converting equipment.
5. the partition rotary kiln device of coking ironmaking cogeneration according to claim 1, it is characterized in that: described cogeneration unit (13) comprises waste heat boiler, steam turbine and generator, waste heat boiler is provided with steam coils, steam coils is connected with steam turbine, and steam turbine is connected with generator shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520089827.4U CN204474704U (en) | 2015-02-07 | 2015-02-07 | The partition rotary kiln device of coking ironmaking cogeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520089827.4U CN204474704U (en) | 2015-02-07 | 2015-02-07 | The partition rotary kiln device of coking ironmaking cogeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204474704U true CN204474704U (en) | 2015-07-15 |
Family
ID=53630507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520089827.4U Withdrawn - After Issue CN204474704U (en) | 2015-02-07 | 2015-02-07 | The partition rotary kiln device of coking ironmaking cogeneration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204474704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630406A (en) * | 2015-02-07 | 2015-05-20 | 石家庄新华能源环保科技股份有限公司 | Dividing wall rotary kiln device for coking ironmaking combined power generation |
| CN106907933A (en) * | 2017-01-13 | 2017-06-30 | 石家庄新华能源环保科技股份有限公司 | A kind of partition rotary kiln production of energy-conserving and environment-protective and electricity generation system |
-
2015
- 2015-02-07 CN CN201520089827.4U patent/CN204474704U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630406A (en) * | 2015-02-07 | 2015-05-20 | 石家庄新华能源环保科技股份有限公司 | Dividing wall rotary kiln device for coking ironmaking combined power generation |
| CN104630406B (en) * | 2015-02-07 | 2016-08-24 | 石家庄新华能源环保科技股份有限公司 | The partition rotary kiln device of coking ironmaking cogeneration |
| CN106907933A (en) * | 2017-01-13 | 2017-06-30 | 石家庄新华能源环保科技股份有限公司 | A kind of partition rotary kiln production of energy-conserving and environment-protective and electricity generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150715 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |