CN202022781U - Flocculation reactor - Google Patents
Flocculation reactor Download PDFInfo
- Publication number
- CN202022781U CN202022781U CN2011200357932U CN201120035793U CN202022781U CN 202022781 U CN202022781 U CN 202022781U CN 2011200357932 U CN2011200357932 U CN 2011200357932U CN 201120035793 U CN201120035793 U CN 201120035793U CN 202022781 U CN202022781 U CN 202022781U
- Authority
- CN
- China
- Prior art keywords
- flocculation
- guide shell
- pod
- reactor
- water
- 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 - Lifetime
Links
- 238000005189 flocculation Methods 0.000 title claims abstract description 84
- 230000016615 flocculation Effects 0.000 title claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 239000003814 drug Substances 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 230000003311 flocculating effect Effects 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000000247 postprecipitation Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Abstract
A flocculation reactor is disposed in a flocculation reaction tank and comprises a guide flow cylinder, a stirring device and a medicament dosage device. The guide flow cylinder is installed in the flocculation reaction tank through a connecting part, the stirring device is arranged in the guide flow cylinder, a dosage port of the medicament dosage device is positioned under the stirring device and located at the upper portion of a water outlet, a water inlet is arranged at the bottom of the guide flow cylinder, a runner for internal circulation of water inflow is enclosed jointly by the outer wall of the guide flow cylinder, the connecting part and the inner wall of the flocculation reaction tank, and the bottom of the runner is provided with a water outlet. The flocculation reactor is capable of better realizing bridging and linking between suspended matters, preventing flocculates from being broken, better realizing combination of medicaments and the suspended matters so as to form bigger flocculates, and meanwhile reducing operation cost.
Description
Technical field
The utility model relates to a kind of water treatment system, particularly the flocculation reactor in the flocculation stage in the precipitation process process of the water depth treatment system in advanced treatment of wastewater system, micro-polluted water treatment system, boiler feed water system, lime treatment system and other industrial enterprise.
Background technology
In the sedimentation processing technology of water, reach higher upflow velocity as need, effluent quality preferably, require always to add the flocculation agent or the nucleus of condensation in the water, utilize the bridge formation of flocculation agent to play the chain effect, with the bigger particle of tiny suspended particle formation agglomerated together, reach the effect that increases pellet density, thereby quicken the sedimentation of suspended substance.But, after flocculation agent adds to come in the water, reach best effect, need flocculation agent to increase the collision touch opportunity as far as possible, thereby make the suspended particle energy agglomerated together with coming the tiny suspended particle in the water.At present, the flocculation stage can function as described above mechanical stirring device, waterpower whipping appts, grid whipping appts etc. are arranged.Because mechanical stirring device can water-fast power impact, whipping process is controlled easily, is that application is more at present, and effect is flocculation plant preferably.What general flocculation agitator adopted is folding slurry formula paddle wheel, utilize the stirring action of folding slurry to reach suspended particle and flocculation agent blended purpose, but because folding slurry agitator is to the destruction of flco, the flco volume that this kind flocculator produces is less, therefore, the upflow velocity in post precipitation pond generally is no more than 9m/h.Owing to want more collision opportunity in the whipping process, need whipping process more violent, but violent stirring action can cause the fragmentation of flco.For example application number is " 200810168939 ", name is called the Chinese invention patent application of " flocculation plant ", and its structure can be under the not too violent situation of whipping process, the collision opportunity of increase suspended particle as much as possible, but its structure more complicated, equipment cost is higher.
The utility model content
Technical problem to be solved in the utility model provides a kind of bridge formation iron chain that can realize better between the suspended substance, realizes combining of medicament and suspended substance better, forms the flocculation reactor of bigger flco.
To achieve these goals, the utility model provides a kind of flocculation reactor, be arranged in the flocculation tank, wherein, comprise guide shell, whipping appts and medicament throwing device, described guide shell is installed in the described flocculation tank by web member, described whipping appts is arranged in the described guide shell, the bottom of described guide shell is provided with water-in, the outer wall of described guide shell, the synthetic into runner of water internal recycle that is used to of the inwall one common peripheral of described web member and described flocculation tank, described runner bottom is provided with water outlet, and the dispensing port of described medicament throwing device is arranged on described whipping appts below and is positioned at the top of described water outlet.
Above-mentioned flocculation reactor, wherein, described whipping appts comprises paddle wheel, stir shaft and actuating unit, and described paddle wheel is connected described stir shaft lower end, and described actuating unit is connected with described stir shaft.
Above-mentioned flocculation reactor, wherein, the gap between the outer rim of described paddle wheel and the inwall of described guide shell is 30～80 millimeters.
Above-mentioned flocculation reactor, wherein, the dispensing port of described medicament throwing device and the distance of described paddle wheel are 200～300 millimeters.
Above-mentioned flocculation reactor, wherein, described paddle wheel is a pulling flow type blade structure.
Above-mentioned flocculation reactor wherein, also comprises a pod, and described pod is connected with the bottom of described guide shell.
Above-mentioned flocculation reactor, wherein, described pod is the umbrella shape pod, the less end of described umbrella shape pod diameter is connected with the bottom of described guide shell.
Above-mentioned flocculation reactor, wherein, the bottom of described pod distance at the bottom of the pond of described flocculation tank is less than or equal to 3500 millimeters.
Above-mentioned flocculation reactor, wherein, described water outlet is 1500～1800 millimeters to the distance of the bottom of described flocculation basin.
Above-mentioned flocculation reactor, wherein, described web member is a wing plate, described wing plate is at least four.
Beneficial functional of the present utility model is: in the flocculation reaction process, by this flocculation reactor is set, can realize the bridge formation iron chain between the suspended substance better, realize combining of medicament and suspended substance better, form bigger flco.Simultaneously, can realize generally speaking the flocculating effect of wanting high G value just can reach by this flocculation reactor under lower G value, on the one hand, lower G value can prevent the fragmentation of flco, can reduce running cost on the other hand.The utility model also has following advantage:
1, adopts churned mechanically flocculation mode, have better shock-resistant ability for the fluctuation that comes the water water quantity and quality;
2, adopt the pulling flow type agitator, stirring intensity is low, and working cost is low;
3, under the situation of low stirring intensity, can increase the collision opportunity between the suspended substance to greatest extent, increase the collision opportunity of medicament and suspended substance, thereby reach the purpose that makes suspended substance form big flocculating body;
4, flocculator is interior except that can adding traditional medicament, also can add materials such as little sand, lime.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is a flocculation reactor structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the principle of work synoptic diagram of flocculation reactor of the present utility model.
Wherein, Reference numeral
1 flocculation reactor
11 guide shells
12 whipping apptss
121 paddle wheels
122 stir shafts
123 actuating units
13 web members
14 medicament throwing devices
15 pods
16 water-ins
17 water outlets
18 runners
2 flocculation tanks
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are done concrete description:
Referring to Fig. 1 and Fig. 2, Fig. 1 is a flocculation reactor structural representation of the present utility model, and Fig. 2 is the vertical view of Fig. 1.Flocculation reactor 1 of the present utility model, be arranged in the flocculation tank 2, comprise guide shell 11, whipping appts 12 and medicament throwing device 14, described guide shell 11 is installed in the described flocculation tank 2 by web member 13, described whipping appts 12 is arranged in the described guide shell 11, the dispensing port of described medicament throwing device 14 is arranged on described whipping appts 12 belows and is positioned at the top of described water outlet 17, the bottom of described guide shell 11 is provided with water-in 16, the outer wall of described guide shell 11, the inwall one common peripheral of described web member 13 and described flocculation tank 2 is synthetic to be used to the into runner 18 of water internal recycle, and described runner 18 bottoms are provided with water outlet 17.Water inlet enters from flocculation tank 2 bottoms, and water outlet 17 is positioned at flocculation reactor 1 inside, and medicament throwing device 14 is installed in the flocculation reactor 1.Requiring sewage residence time in flocculation tank 2 is 10～20min, and preferential choosing is 13～15min then; The flow rates of water in runner 18 is 0.2～0.5m/s, preferentially selects 0.3～0.4m/s.The G value that described whipping appts 12 provides requires to be 200-s, the G value representation be velocity slope, refer to the current difference that the different flow velocity of suspended substance in the water forms, thereby reach the purpose of colliding easily between the flco, general G value is big more, easy more collision, but the increase of G value can cause the increase of agitator power, and because stirring intensity is big, cause flco broken easily, the flco of formation is little.In the present embodiment, described whipping appts 12 comprises paddle wheel 121, stir shaft 122 and actuating unit 123, and described paddle wheel 121 is connected described stir shaft 122 lower ends, and described actuating unit 123 is connected with described stir shaft 122.Wherein, have one 30～100 mm clearance between the inwall of the outer rim of described paddle wheel 121 and described guide shell 11, preferentially select 50mm.
In the present embodiment, described web member 13 is a wing plate, and wing plate is used for anti-sealing and forms eddy flow in flocculation tank 1, and described wing plate is at least four.Water inlet by guide shell 11, enters guide shell 11 outsides by the lifting of whipping appts 12 then, by the baffle effect of wing plate, prevents that liquid from rotating with whipping appts 12, can only reach the purpose of flocculation at runner 18 internal recycle in flocculation tank 2.The dispensing port of described medicament throwing device 14 and described paddle wheel 121 have one 200～500 millimeters, preferentially select the distance of 300mm.Described paddle wheel 121 is a pulling flow type blade structure, and the paddle rotating speed is 20～30rpm/min, and the lifting capacity of the plug-flow Capability Requirement water of whipping appts 12 is 5～10 times of amount of inlet water.Also comprise a pod 15, described pod 15 is connected with the bottom of described guide shell 11.Described pod 15 is preferably umbrella shape pod 15, and the less end of described umbrella shape pod 15 diameters is connected with the bottom of described guide shell 11.The bottom of described pod 15 distance at the bottom of the pond of described flocculation tank 2 is less than or equal to 3500 millimeters, preferentially selects 3000mm.Described water outlet 17 is 1500～1800 millimeters to the distance of the bottom of described flocculation basin, and promptly water outlet 17 is higher than flocculation tank 1 bottom 1500～1800mm.
The utility model has changed mechanical stirrer flocculation mode in the past, avoid the contradiction of existing mechanical flocculation stirring intensity and flco volume, the flco volume that flocculation process is produced is bigger, effect of settling is better, settling velocity is faster, thereby reduce the floor space in post precipitation pond, reduce the construction investment of settling tank.
The present invention also has following advantage:
1, adopts churned mechanically flocculation mode, have better shock-resistant ability for the fluctuation that comes the water water quantity and quality;
2, adopt the pulling flow type agitator, stirring intensity is low, and working cost is low;
3, under the situation of low stirring intensity, can increase the collision opportunity between the suspended substance to greatest extent, increase the collision opportunity of medicament and suspended substance, thereby reach the purpose that makes suspended substance form big flocculating body;
4, flocculator is interior except that can adding traditional medicament, also can add materials such as little sand, lime.
Flocculation treatment device of the present utility model, it is technique improvement to traditional flocculation plant, solved the contradictory problems of stirring intensity and floc particle size in traditional flocculation process, by flocculation reactor 1 is installed in flocculation tank 2, can change the paddle mode of conventional agitator, the intensity that reduces to stir, runner 18 by flocculation reactor 1, make flocculation agent and suspension fine particle, collision opportunity between the fine particle increases greatly, thereby increased flocculation particulate size, make the settling velocity of suspended substance higher, effect of settling is better, forms the bigger flocs unit of particle.Post precipitation pond upflow velocity can reach more than the 15m/h, thereby has reduced the floor space and the construction investment of settling tank greatly, and effluent quality is better.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. flocculation reactor, be arranged in the flocculation tank, it is characterized in that, comprise guide shell, whipping appts and medicament throwing device, described guide shell is installed in the described flocculation tank by web member, described whipping appts is arranged in the described guide shell, the bottom of described guide shell is provided with water-in, the outer wall of described guide shell, the synthetic into runner of water internal recycle that is used to of the inwall one common peripheral of described web member and described flocculation tank, described runner bottom is provided with water outlet, and the dispensing port of described medicament throwing device is arranged on described whipping appts below and is positioned at the top of described water outlet.
2. flocculation reactor as claimed in claim 1 is characterized in that described whipping appts comprises paddle wheel, stir shaft and actuating unit, and described paddle wheel is connected described stir shaft lower end, and described actuating unit is connected with described stir shaft.
3. flocculation reactor as claimed in claim 2 is characterized in that, the gap between the outer rim of described paddle wheel and the inwall of described guide shell is 30～80 millimeters.
4. as claim 2 or 3 described flocculation reactors, it is characterized in that the dispensing port of described medicament throwing device and the distance of described paddle wheel are 200～300 millimeters.
5. as claim 2 or 3 described flocculation reactors, it is characterized in that described paddle wheel is a pulling flow type blade structure.
6. as claim 1,2 or 3 described flocculation reactors, it is characterized in that also comprise a pod, described pod is connected with the bottom of described guide shell.
7. flocculation reactor as claimed in claim 6 is characterized in that, described pod is the umbrella shape pod, and the less end of described umbrella shape pod diameter is connected with the bottom of described guide shell.
8. flocculation reactor as claimed in claim 6 is characterized in that, the bottom of described pod distance at the bottom of the pond of described flocculation tank is less than or equal to 3500 millimeters.
9. as claim 1,2,3,7 or 8 described flocculation reactors, it is characterized in that described water outlet is 1500～1800 millimeters to the distance of the bottom of described flocculation basin.
10. as claim 1,2,3,7 or 8 described flocculation reactors, it is characterized in that described web member is a wing plate, described wing plate is at least four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357932U CN202022781U (en) | 2011-02-10 | 2011-02-10 | Flocculation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357932U CN202022781U (en) | 2011-02-10 | 2011-02-10 | Flocculation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202022781U true CN202022781U (en) | 2011-11-02 |
Family
ID=44847741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200357932U Expired - Lifetime CN202022781U (en) | 2011-02-10 | 2011-02-10 | Flocculation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202022781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310546A (en) * | 2014-09-29 | 2015-01-28 | 武汉市政工程设计研究院有限责任公司 | Efficient energy-saving flocculation reactor for water treatment |
| CN108499383A (en) * | 2018-03-20 | 2018-09-07 | 束鑫 | It is a kind of based on the industrial production of gear-rack drive liquid material mixing apparatus |
| CN112358017A (en) * | 2020-10-27 | 2021-02-12 | 北京翰祺环境技术有限公司 | System and method for treating sewage by utilizing induced crystallization |
-
2011
- 2011-02-10 CN CN2011200357932U patent/CN202022781U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310546A (en) * | 2014-09-29 | 2015-01-28 | 武汉市政工程设计研究院有限责任公司 | Efficient energy-saving flocculation reactor for water treatment |
| CN104310546B (en) * | 2014-09-29 | 2016-01-20 | 武汉市政工程设计研究院有限责任公司 | A kind of flocculation reactor for water treatment |
| CN108499383A (en) * | 2018-03-20 | 2018-09-07 | 束鑫 | It is a kind of based on the industrial production of gear-rack drive liquid material mixing apparatus |
| CN112358017A (en) * | 2020-10-27 | 2021-02-12 | 北京翰祺环境技术有限公司 | System and method for treating sewage by utilizing induced crystallization |
| CN112358017B (en) * | 2020-10-27 | 2023-12-19 | 北京翰祺环境技术有限公司 | System and method for treating sewage by utilizing induced crystallization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103755007B (en) | Fenton fluidized bed treatment device and waste water treatment method thereof | |
| KR101141871B1 (en) | Method and reactor for flocculation treatment, and fluid treatment installation | |
| CN105923722B (en) | A kind of reflux of precipitating sludge helps solidifying with solidifying core clarifier | |
| CN209652027U (en) | A kind of novel plus sand sedimentation basin with spiral stream guidance cylinder | |
| CN213803071U (en) | Flocculation reactor and sewage treatment equipment | |
| CN209333262U (en) | A kind of sewage treatment flocculation deposition apparatus | |
| CN102774962B (en) | Internal circulation hydrolysis reactor and process thereof | |
| CN205099437U (en) | High -speed superposed layer depositing reservoir | |
| CN104743742A (en) | Chemimechanical pulp wastewater treatment system | |
| CN202022781U (en) | Flocculation reactor | |
| CN102774992A (en) | Integrated cyclone purifier | |
| CN108689475B (en) | Fenton oxidation baffled reactor and organic wastewater treatment method | |
| CN112811548B (en) | Rotational flow flocculation device and sedimentation tank with same | |
| CN203625180U (en) | Mechanical flocculation sewage treatment sediment filter tank | |
| CN202876799U (en) | Internal circulation hydrolysis reactor | |
| CN102730831B (en) | Internal circulation hydrolysis anaerobic reaction device | |
| CN110204103B (en) | Suspension medium layer filtering system based on hydraulic fluidization layering | |
| CN209468260U (en) | A kind of waste water coupling processing device based on magnetic-coagulation and sodium peroxydisulfate catalysis oxidation | |
| CN208071403U (en) | Vertical sedimentation basin with reflux in sludge | |
| CN203295250U (en) | Novel high-speed high-efficiency sedimentation tank for sand addition | |
| CN206467021U (en) | A kind of rapid sedimentation tank | |
| CN209853826U (en) | Jet flow anaerobic reactor | |
| CN204170466U (en) | A kind of inward eddy structure of New-type Swirl Flow settling vessel | |
| CN208471637U (en) | A kind of wastewater of chemical industry with high concentration cyclone-flocculation reaction settler | |
| CN105771337A (en) | High-efficiency solid-liquid separation device and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sludge flocculation reactor Effective date of registration: 20130426 Granted publication date: 20111102 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing En-e Technologies Co., Ltd. Registration number: 2013990000246 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20131107 Granted publication date: 20111102 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing En-e Technologies Co., Ltd. Registration number: 2013990000246 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sludge flocculation reactor Effective date of registration: 20131107 Granted publication date: 20111102 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing En-e Technologies Co., Ltd. Registration number: 2013990000827 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140910 Granted publication date: 20111102 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing En-e Technologies Co., Ltd. Registration number: 2013990000827 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sludge flocculation reactor Effective date of registration: 20140923 Granted publication date: 20111102 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing En-e Technologies Co., Ltd. Registration number: 2014990000787 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Korea 100000 Beijing Shunyi District City, Ying Zhen Nan Langzhong Village East Patentee after: BEIJING XINYUAN GUONENG TECHNOLOGY GROUP CO., LTD. Address before: Korea 100000 Beijing Shunyi District City, Ying Zhen Nan Langzhong Village East Patentee before: Beijing En-e Technologies Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |
|
| CX01 | Expiry of patent term |