CN202643425U - Anaerobic baffled reaction device for divisional multi-point pulse influent - Google Patents
Anaerobic baffled reaction device for divisional multi-point pulse influent Download PDFInfo
- Publication number
- CN202643425U CN202643425U CN2012201648677U CN201220164867U CN202643425U CN 202643425 U CN202643425 U CN 202643425U CN 2012201648677 U CN2012201648677 U CN 2012201648677U CN 201220164867 U CN201220164867 U CN 201220164867U CN 202643425 U CN202643425 U CN 202643425U
- Authority
- CN
- China
- Prior art keywords
- water
- reaction
- tank
- water inlet
- communicated
- 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
Classifications
-
- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model provides an anaerobic baffled reaction device for divisional multi-point pulse influent, which is used for increasing water flow instant impact speed, reducing fatty acid accumulation and enhancing stability and reliability of sewage treatment. The anaerobic baffled reaction device comprises a reaction pond main body, the interior of which is divided into a plurality of reaction chambers; the reaction chambers are partitioned by partition walls; flow guide plates are mounted in the reaction chambers; a manhole cover plate is arranged at the top of the reaction pond main body, wherein water distribution pipes are also mounted in the plurality of reaction chambers; each water distribution pipe is communicated with the bottom of a pulse tank arranged above the reaction pond main body; an electromagnetic valve is mounted on a pipeline of each water distribution pipe; the top parts of the pulse tanks are communicated with water inlet self-sucking pumps; and the water inlet self-sucking pumps are communicated with a water outlet backflow pipe at a reaction pond water outlet so as to form a complete water circulating passage. According to the utility model, the water flow instant impact speed is increased, the fatty acid accumulation is reduced, the stability and reliability of the sewage treatment are enhanced, the construction is convenient, the accuracy can be guaranteed, and the cost is reduced.
Description
Technical field
The utility model relates to a kind of equipment anaerobic bio-treatment of wastewater, particularly a kind of deflector type equipment anaerobic bio-treatment of wastewater of subregion multiple spot pulse water-feeding.
Background technology
Exploitation less energy-consumption, efficient organic sewage, urban sewage treatment process are the present problem demanding prompt solutions of technical field of sewage, the anaerobe sewage disposal technology is metabolism and the characteristic of utilizing anaerobion, need not to provide under the condition of external source energy, with the organism that is reduced as hydrogen acceptor, in degradation of organic substances, produce to have and utilize the energy---the biogas that is worth, thus it be at present effectively, one of economic, the energy-conservation solution organic sewage important channel of processing.
Anaerobic baffled formula reactor (ABR) is a kind of high efficiency anaerobic reactor of 20th century the mid-80 research and development, interior some vertical flow deflectors are set, reactor is separated into several reaction chambers of series connection, each reaction chamber can be regarded a relatively independent flow lifting type Sludge Bed system as, sewage enter behind the reactor along flow deflector up and down baffling advance, the Sludge Bed by each reaction chamber successively, the organic substrate in the sewage fully contact by each reaction chamber and with wherein microorganism and obtain removing.By means of the rising of current and the agitaion of biogas, biological sludge in the reaction chamber moves up and down, current fluidised form in different compartments presents complete mixed state, the cellular structure of this uniqueness and pulling flow type fluidised form have farthest met the stage by stage requirement of heterogeneous (SMPA) technology so that can inoculate and culture out in each reaction chamber and the microflora that flow to this reaction chamber sewage quality envrionment conditions and adapt.Secondly, the characteristics such as that the ABR reactor has is simple in structure, stable and reliable operation and typical microbial separation, therefore special advantage is arranged, but efficient is relatively low in the processing of the organic sewage of low concentration such as sanitary sewage in the processing of middle and high concentration organic sewage.
But, traditional ABR reactor exists following deficiency at present, the one, owing to take one-sided water inlet, because its pulling flow type characteristics have its disadvantageous one side, under identical organic loading condition, the load that bear the first lattice chamber of ABR reactor causes the accumulation of voltaile fatty acid easily much larger than mean load, affects stability and the reliability of reactor operation; The design of the 2nd, ABR inside reactor structure is relatively simple, and difficult fully the mixing with biological sludge of sewage contacts, and therefore compares with IC, UASB, EGSB anaerobic reactor, and be on the low side to the clearance of COD of sewage; The 3rd, be lower than design objective when larger at hydraulic load, the water inlet flow velocity is low, and sewage is difficult to stir biological sludge mixing contact, causes processing efficiency to descend; Partition wall and the flow deflector of the separation reaction chamber of the 4, ABR reactor generally adopt concrete structure, because spacing is less, construction is relatively complicated, and difficulty is larger, and precision is wayward.
Summary of the invention
For solve that the one-sided water inlet of existing tradition ABR reactor exists such as: reactor front end lattice chamber organic loading is too high, cause easily the volatile fat acid accumulation, entering organic matter of water matrix can't fully be mixed with anaerobe mud and contacted the problem that the COD of sewage clearance is on the low side.The above-mentioned technical deficiency that the utility model exists for the anaerobic baffled formula reaction unit of the one-sided water inlet of present tradition (see figure 1), a kind of subregion multiple spot pulse water-feeding and novel anaerobic baffled formula reaction unit (see figure 3) that can realize that the water outlet outer circulation refluxes of adopting is provided, the one, by carrying out the subregion multipoint water feeding, reduced the organic loading of reactor the first lattice chamber, make the organic loading relative equilibrium of front several lattice chamber, avoided first or front end lattice chamber produce the phenomenon of volatile fat acid accumulation, further improved stability and the reliability of sewage disposal; The 2nd, improve water inlet current moment impact speed by pulse water-feeding, can guarantee that the abundant mixing of organism matrix and anaerobe mud contacts in the sewage, thereby but Effective Raise to the clearance of COD of sewage; The 3rd, reflux by setting up the water outlet outer circulation, be convenient to regulate amount of inlet water and the hydraulic load of controlling and keeping in balance, to guarantee suitable water inlet flow velocity.
The technical scheme that its technical problem that solves the utility model adopts is:
The anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding, include water inlet pipe, pulsing tank and rising pipe (reaction tank water inlet pipe), the reaction tank main body, reaction tank rising pipe and return line, the reaction tank body interior is divided into many (N) individual (lattice) reaction chamber, middle partition wall or the dividing plate of adopting separates, in each (lattice) reaction chamber, flow deflector is housed all, reaction tank main body top is provided with manhole plate, it is characterized in that: water inlet pipe is communicated with the intake pump import, the intake pump outlet pipe is communicated with Impulsive tank top water inlet pipe and enters Impulsive tank, Impulsive tank bottom rising pipe is communicated with the water inlet pipe of many (n) individual (lattice) reaction chamber, and at each (lattice) reaction chamber water inlet pipe pipeline magnetic valve is installed, in each (lattice) have the reaction chamber of water inlet pipe water distributor is housed accordingly, the water inlet pipe of reaction chamber is communicated with water distributor in the reaction chamber; Described Impulsive tank is communicated with the intake pump outlet pipe, and reaction tank effluent recycling pipe is communicated with the intake pump inlet pipe, forms complete water circulation passage.
In such scheme, the main body of described reaction tank is enclosed construction, its top manhole plate has a plurality of manholes, corresponding (lattice) reaction chamber of each manhole, the manhole external surface peripheral has been built boss, cover plate covers on boss, and cover plate pushes up 300～400 millimeters high apart from the reaction tank pond, and on the cover board is provided with safety lock.
In such scheme, described reaction chamber number (N) can be greater than or equal to the reaction chamber number (n) that water inlet pipe is communicated with Impulsive tank bottom rising pipe.
In such scheme, the described reaction chamber number (n) that is communicated with water inlet pipe with Impulsive tank bottom rising pipe is at least 2 (lattice), be interrupted water inlet to each (lattice) reaction chamber in order according to PLC sequence of control control magnetic valve, to reach the purpose of subregion pulse water-feeding.
In such scheme, in the described Impulsive tank, siphon pipe is installed, siphonal long end connects the posticum of Impulsive tank bottom, and at the porose connection gas exhaust duct of the side opening of long end, under the opening down immersion Impulsive tank of the siphonal short end water surface, during water inlet, rising along with the water surface, air in the siphon pipe is progressively discharged from gas exhaust duct, behind the emptying air, forms siphon effect, the water that sucks from short end just can be drained into the water distributor by long end, forms pulse water distribution.
In such scheme, described water distributor number is at least 2, and water distributor is provided with equidistant water distributing pore, and staggered 45 degree of water distributing pore arrange that the water distributing pore direction is placed at the bottom of the pond, is beneficial to sewage and fully mixes with mud formation turbulent flow.
In such scheme, described flow deflector adopts stainless steel, PE plate or other light anticorrosive materials, and flow deflector is vertically set in the reaction chamber along the current ascent direction, and flow deflector also and between the partition wall leaves the gap near partition wall.
In such scheme, described magnetic valve also is connected with pilot circuit, by judging the switch of elevation of water surface control magnetic valve.
The principle of the utility model device is to adopt the Impulsive tank subregion to be interrupted water inlet, each (lattice) reaction chamber is arrived in water inlet, be interrupted control by each magnetic valve, be interrupted in order respectively on request water inlet, also simultaneously a plurality of (lattice) reaction chamber water inlet, connect reaction chamber pond base fabric water pipe behind each entering water electromagnetic valve, water distributor can adopt pvc pipe, steel pipe or other applicable tubing, pipe is provided with equidistant water distributing pore, staggered 45 degree of water distributing pore are arranged, the water distributing pore direction is placed at the bottom of the pond, is beneficial to sewage and fully mixes with mud.Simultaneously owing to adopt the pulse water distribution mode, so that going round and beginning again, sludge blanket is in expansion---and compression process not only is conducive to sewage and fully mixes with biological sludge, but also is conducive to promote formation and the growth of particulate state particulate mud.The water inlet of this device also adopts effluent recycling before intake pump in addition, can play the dilution influent concentration, makes the reactor process condition keep higher stability, and capacity of resisting impact load is strong, can guarantee preferably the stability of subsequent technique; And can when technique flooding quantity load is low, increase reaction tank flooding quantity load by effluent recycling, improve the water distributor exit velocity, be conducive to sewage and mix with biological sludge, improve contaminant removal efficiency.
The beneficial effects of the utility model are:
1, pulse water distribution has improved water inlet current moment impact speed, is conducive to fully mixing of organism matrix and biological sludge in the sewage, is conducive to promote formation and the growth of particulate state particulate mud, thereby has improved the clearance of sewage disposal COD;
2, the subregion multipoint water feeding has reduced the organic loading of ABR reaction tank the first reaction grid chamber, avoided producing the accumulation of voltaile fatty acid, the organic substrate of abundance is provided to the microorganism of the follow-up reaction grid of reaction tank chamber again simultaneously, to excite the microorganism active of first to N (lattice) reaction chamber, make microorganism growth rapid, quantity improves, kind realizes variation, also namely improve the concentration of biomass in the reaction tank, be conducive to create the best ecological condition of acidifying flora, further improve operation stability, reliability and the high efficiency of ABR;
3. by being back to import through the part of ABR reaction tank processing water outlet, enter again the ABR reaction tank, can improve elementary stream speed in the ABR reaction tank, increase sewage and biological sludge mixed effect, make the ABR reaction tank improve 12%～20% to the COD of sewage clearance, reduce the expense of sewage disposal.Principle is: when current were brought up to certain value gradually by the speed of mud bed, bottom granular biological mud occurred loosening, and the intergranular space increases, and expanding appears in bed volume.Further improve flow velocity, the mud bed can not be kept steady state.At this moment, granule sludge all is suspended in the current fluid, demonstrates quite irregular motion.Along with the raising of flow velocity, the motion of granule sludge is further violent, and the expansion of bed also increases thereupon;
4, adopt stainless steel, PE plate or other light anticorrosive material substitution concrete for making flow deflector and partition wall, can greatly reduce construction complexity and the difficulty of ABR reaction tank, not only can better guarantee construction precision, also can reducing the construction costs.
Description of drawings
Fig. 1 is prior art waste disposal plant structural representation
Fig. 2 is vertical view of the present utility model;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the Impulsive tank cut-away view;
Among the figure: 1-reaction tank main body, 2-manhole plate, 3-partition wall, 4-flow deflector, 5-Impulsive tank, 6-magnetic valve, 7-water distributor, 8-effluent recycling pipe, 9-water inlet pipe, 10-intake pump, 11-intake pump outlet pipe, 12-siphon pipe, 13-gas exhaust duct.
Embodiment
Below in conjunction with embodiment, the utility model is further described:
Anaerobic baffled formula reaction unit such as Fig. 2 Fig. 3 subregion multiple spot pulse water-feeding shown in Figure 4, include reaction tank main body 1, reaction tank main body 1 internal separation is a plurality of reaction chambers, the middle partition wall 3 that adopts separates, flow deflector 4 all is housed in each reaction chamber, the top of reaction tank main body 1 is provided with manhole plate 2, water distributor 7 wherein also is housed in a plurality of reaction chambers, each water distributor 7 all is communicated with Impulsive tank 5 bottoms that are arranged at reaction tank main body 1 top, and at the pipeline of each water distributor 7 magnetic valve 6 is installed, described Impulsive tank 5 tops are communicated with intake pump outlet pipe 11, the water inlet pipe 9 of intake pump 10 is communicated with the effluent recycling pipe 8 that is arranged at reaction tank main body 1 water outlet, forms complete water circulation channel.
In the present embodiment, described reaction tank main body 1 is enclosed construction, its top manhole plate 2 has a plurality of manholes, the corresponding reaction chamber of each manhole, the manhole external surface peripheral has been built boss, cover plate covers on boss, and cover plate pushes up 400 millimeters high apart from the reaction tank pond, and on the cover board is provided with safety lock.
In the present embodiment, in the described Impulsive tank 5, siphon pipe 12 is installed, the long end of siphon pipe 12 connects the posticum of Impulsive tank bottom, and at the porose connection gas exhaust duct 13 of the side opening of long end, under opening down immersion Impulsive tank 5 waters surface of the short end of siphon pipe 12, during water inlet, along with the rising of the water surface, air in the siphon pipe 12 is progressively discharged from gas exhaust duct 11, behind the emptying air, form siphon effect, the water that sucks from short end just can be drained into the water distributor 7 by long end.
In the present embodiment, described water distributor 7 numbers are 3, and water distributor 7 is provided with equidistant water distributing pore, and staggered 45 degree of water distributing pore arrange that the water distributing pore direction is placed at the bottom of the pond, are beneficial to sewage and fully mix with mud formation turbulent flow.
In the present embodiment, described flow deflector 4 adopts the PE panel materials, and partition wall 3 adopts skeleton constructions, and flow deflector 4 is vertically set in the reaction chamber along the current ascent direction, flow deflector 4 near partition walls 3 and and partition wall 3 between leave the gap.
In the present embodiment, described magnetic valve 6 also is connected with pilot circuit, and pilot circuit is by judging the switch of elevation of water surface control magnetic valve 6.
Described water outlet can be partly refluxed to feed-water end according to processing requirement and needs.
The design concept of the utility model device is not limited to this; can be to arrange more than 2 or 2 such as water distributor 7; this is to determine according to influent concentration and sewage character; water inlet Impulsive tank 5 can be one or more composition water inlet systems; the change of the unsubstantiality that the Integral Thought that utilizes us carries out the anaerobic baffled reaction unit of the utility model subregion multiple spot pulse water-feeding all belongs to the behavior of invading the utility model protection domain.
Claims (7)
1. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding, include water inlet pipe, pulsing tank and rising pipe, the reaction tank main body, reaction tank rising pipe and return line, the reaction tank body interior is divided into a plurality of reaction chambers, middle partition wall or the dividing plate of adopting separates, flow deflector all is housed in each reaction chamber, reaction tank main body top is provided with manhole plate, it is characterized in that: water inlet pipe is communicated with the intake pump import, the intake pump outlet pipe is communicated with Impulsive tank top water inlet pipe and enters Impulsive tank, Impulsive tank bottom rising pipe is communicated with the water inlet pipe of a plurality of reaction chambers, and at each reaction chamber water inlet pipe pipeline magnetic valve is installed, accordingly in each has the reaction chamber of water inlet pipe water distributor is housed, the water inlet pipe of reaction chamber is communicated with the interior water distributor of reaction chamber; Described Impulsive tank is communicated with the intake pump outlet pipe, and reaction tank effluent recycling pipe is communicated with the intake pump inlet pipe, forms complete water circulation passage.
2. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding as claimed in claim 1, it is characterized in that: in such scheme, described reaction tank main body is enclosed construction, its top manhole plate has a plurality of manholes, the corresponding reaction chamber of each manhole, the manhole external surface peripheral has been built boss, and cover plate covers on boss, cover plate is high apart from top, reaction tank pond 300-400 millimeter, and on the cover board is provided with safety lock.
3. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding as claimed in claim 1, it is characterized in that: the reaction chamber number is at least 2, is interrupted water inlet to each reaction chamber in order according to PLC sequence of control control magnetic valve.
4. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding as claimed in claim 1, it is characterized in that: described flow deflector adopts stainless steel or PE plate, flow deflector is vertically set in the reaction chamber along the current ascent direction, and flow deflector also and between the partition wall leaves the gap near partition wall.
5. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding as claimed in claim 1, it is characterized in that: in the described Impulsive tank, siphon pipe is installed, siphonal long end connects the posticum of Impulsive tank bottom, and at the porose connection gas exhaust duct of the side opening of long end, under the opening down immersion Impulsive tank of the siphonal short end water surface.
6. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding as claimed in claim 1, it is characterized in that: described water distributor number is at least 2, water distributor is provided with equidistant water distributing pore, and staggered 45 degree of water distributing pore arrange that the water distributing pore direction is placed at the bottom of the pond.
7. the anaerobic baffled formula reaction unit of subregion multiple spot pulse water-feeding as claimed in claim 1, it is characterized in that: described magnetic valve also is connected with pilot circuit, and pilot circuit is by judging the switch of elevation of water surface control magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201648677U CN202643425U (en) | 2012-04-18 | 2012-04-18 | Anaerobic baffled reaction device for divisional multi-point pulse influent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201648677U CN202643425U (en) | 2012-04-18 | 2012-04-18 | Anaerobic baffled reaction device for divisional multi-point pulse influent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643425U true CN202643425U (en) | 2013-01-02 |
Family
ID=47412562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201648677U Expired - Fee Related CN202643425U (en) | 2012-04-18 | 2012-04-18 | Anaerobic baffled reaction device for divisional multi-point pulse influent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643425U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944679A (en) * | 2015-05-19 | 2015-09-30 | 江苏省嘉庆水务发展有限公司 | Treatment method of dispersed high-ammonia-nitrogen sewage |
| CN106957107A (en) * | 2016-12-31 | 2017-07-18 | 嘉兴里仁环保科技有限公司 | Using the sewage disposal system of MBR membrane modules |
| CN108946936A (en) * | 2018-08-23 | 2018-12-07 | 重庆怡灏园林工程有限公司 | The UASB reactor of tape pulse water distribution |
| CN109529650A (en) * | 2018-12-27 | 2019-03-29 | 郑州江宇水务工程有限公司 | A kind of contraction turbulent fluctuation formula mixing arrangement |
| CN110498509A (en) * | 2019-08-22 | 2019-11-26 | 广西师范大学 | A kind of high ammonia nitrogen sewage treatment unit and the method using its progress sewage treatment |
| CN113104972A (en) * | 2021-04-15 | 2021-07-13 | 桂林理工大学 | Composite two-phase integrated anaerobic reaction system |
-
2012
- 2012-04-18 CN CN2012201648677U patent/CN202643425U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944679A (en) * | 2015-05-19 | 2015-09-30 | 江苏省嘉庆水务发展有限公司 | Treatment method of dispersed high-ammonia-nitrogen sewage |
| CN106957107A (en) * | 2016-12-31 | 2017-07-18 | 嘉兴里仁环保科技有限公司 | Using the sewage disposal system of MBR membrane modules |
| CN108946936A (en) * | 2018-08-23 | 2018-12-07 | 重庆怡灏园林工程有限公司 | The UASB reactor of tape pulse water distribution |
| CN108946936B (en) * | 2018-08-23 | 2024-02-02 | 怡灏环境技术有限公司 | UASB reactor with pulse water distribution |
| CN109529650A (en) * | 2018-12-27 | 2019-03-29 | 郑州江宇水务工程有限公司 | A kind of contraction turbulent fluctuation formula mixing arrangement |
| CN110498509A (en) * | 2019-08-22 | 2019-11-26 | 广西师范大学 | A kind of high ammonia nitrogen sewage treatment unit and the method using its progress sewage treatment |
| CN110498509B (en) * | 2019-08-22 | 2023-09-22 | 广西师范大学 | High ammonia nitrogen sewage treatment device and sewage treatment method using same |
| CN113104972A (en) * | 2021-04-15 | 2021-07-13 | 桂林理工大学 | Composite two-phase integrated anaerobic reaction system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202643425U (en) | Anaerobic baffled reaction device for divisional multi-point pulse influent | |
| CN202089869U (en) | High-efficient composite reaction device for anaerobic organism | |
| CN204824342U (en) | Baffling formula removes bed biomembrane anaerobic reactor | |
| CN201313860Y (en) | Integrated aeration-sedimentation aerobic reactor | |
| CN203999140U (en) | A kind of moving-bed type decentralized sewage treatment device | |
| JP2010042352A (en) | Anaerobic treatment method and apparatus | |
| CN101643273A (en) | Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field | |
| CN214571372U (en) | Vertical sewage treatment integrated equipment with water flow flowing from bottom to top | |
| CN103011404B (en) | Internal-mixing anaerobic reaction tank | |
| CN103011402A (en) | Double-circulation anaerobic reactor | |
| CN203007035U (en) | Dual-circulation anaerobic reactor | |
| CN204939075U (en) | A kind of new and effective waterpower internal circulating anaerobic bio-reactor | |
| CN101555083A (en) | Baffling contact precipitation integral anaerobic reactor | |
| CN211546085U (en) | ABR reactor device | |
| CN202379803U (en) | Staggered flow type aeration, sediment and filter device | |
| CN111056629A (en) | ABR reactor device | |
| CN203794696U (en) | Novel efficient anaerobic bioreactor | |
| CN203007037U (en) | Internal mixing anaerobic reactor | |
| CN201406346Y (en) | High efficiency beet sugar manufacturing wastewater treatment system | |
| CN201082875Y (en) | Energy-saving impulse anaerobic reactor | |
| CN103539259A (en) | Internal and external circulation type high-efficiency anaerobic reactor | |
| CN209778441U (en) | outer circulation anaerobic reactor | |
| CN102115258A (en) | Two-phase integrated anaerobic reactor | |
| CN113003719A (en) | Forced air-stripping mixing and stirring anaerobic reactor | |
| CN102689984B (en) | Improved anaerobic baffle plate biological sewage treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20140418 |