CN201620059U - Forced iron-carbon electrolysis reactor - Google Patents
Forced iron-carbon electrolysis reactor Download PDFInfo
- Publication number
- CN201620059U CN201620059U CN2010200003740U CN201020000374U CN201620059U CN 201620059 U CN201620059 U CN 201620059U CN 2010200003740 U CN2010200003740 U CN 2010200003740U CN 201020000374 U CN201020000374 U CN 201020000374U CN 201620059 U CN201620059 U CN 201620059U
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- China
- Prior art keywords
- iron
- aeration
- waste water
- electrolysis reactor
- reaction vessel
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- 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.)
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- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 42
- 238000005273 aeration Methods 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000010926 purge Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 abstract description 29
- 238000009713 electroplating Methods 0.000 abstract description 6
- 238000002161 passivation Methods 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000271 synthetic detergent Substances 0.000 abstract description 2
- 239000010985 leather Substances 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000010186 staining Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004043 dyeing Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 238000010349 cathodic reaction Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000004042 decolorization Methods 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000010806 kitchen waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model relates to a forced iron-carbon electrolysis reactor comprising a reaction vessel in which iron-carbon fillers are put. The utility model is characterized in that at least two support layers are arranged in the reaction vessel at intervals along the vertical direction, aeration and backwash devices are respectively arranged on all support layers, and a plurality of through holes are arranged on each support layer. The utility model is simple in structure and easy to assemble and maintain. The utility model not only has the advantages of a fluidized bed and reserves the plug flow properties of a fixed bed, but also can effectively avoid the passivation and hardening phenomena of internal iron-carbon fillers used for a long term, so manufacturer operating cost can be reduced, and the work efficiency can be improved. The reactor can be broadly used for the pretreatment and advanced treatment of dye production waste water, staining waste water, pharmacy waste water, organic and petrochemical waste water, synthetic detergent waste water, oil bearing waste water, cyanide waste water, electroplating waste water, coal gas washing water, leather working waste water, kitchen sewage, etc.
Description
Technical field
The utility model relates to a kind of sewage disposal device, is specifically related to a kind of reinforcement iron-carbon micro-electrolysis reactor that can be applicable to treatment of dyeing and printing, electroplating wastewater, pharmacy waste water etc.
Background technology
The current industrial water costs an arm and a leg, and the each department environmental consciousness strengthens day by day, and each department are to industry strict regulation sewage drainage standard and total amounts such as with serious pollution printing and dyeing, plating, pharmacy.Therefore low-cost, the water technology that treatment effect is good has broad prospects in dyeing, electroplating industry and pharmaceutical industry.Micro-electrolysis method is a kind of economy, efficiently typical easily wastewater processing technology, its treating water kind face width, and load adaptability, but also can be used for the technological transformation of existing treatment facility easily, and gain on investments is very remarkable, and market potential is huge.Show with practice that after deliberation micro-electrolysis method has goodish reduction COD and decolorization to most of dyeing waste waters, can make water outlet reach the dyeing water supply standard; In addition, micro-electrolysis method is used for the pre-treatment of electroplating wastewater, can reduce the cost of electroplating wastewater processing greatly; Micro-electrolysis method is used for the pre-treatment of pharmacy waste water, can improve the biodegradability of waste water greatly, improves the clearance of hardly degraded organic substance in the waste water.
The principle of work of micro-electrolysis method is: utilize iron-carbon to corrode little (interior) electrolytic process that forms in electrolyte solution and destroy organic molecule structure and character thereof in the waste water, say further, promptly be, because of iron different with the corrosion potential of charcoal, adopt iron to do that anode, charcoal are made negative electrode, waste water is made ionogen and formed thousands upon thousands galvanic cells, electrode reaction is as follows:
Fe-2e=Fe
2+(anodic reaction)
E
0(Fe
2+/Fe)＝-0.44V
2H
++ 2e=H
2↑ (cathodic reaction)
E
0(H
+/H
2)＝0V
Cathodic reaction is as follows when aerobic exists:
O
2+4H
++4e＝H
2O
O
2+2H
2O+4e＝5OH
-
E
0(O
2/OH
-)＝0.40V
The not power consumption of above-mentioned electrode process, and can produce effects such as redox, electric agglomeration, the nascent state Fe that electrode reaction produces
2+Be the great coagulating agent of a kind of absorption, containing and complex ability, so that the characteristics of micro-electrolysis method are mechanism of action is many, synergetic property is strong, and net effect is remarkable, can improve wastewater biodegradability, and good, easy and simple to handle with the biochemical treatment matching, working cost is low.
And the key equipment of realizing this technology is the iron-carbon micro-electrolysis reactor, its structure as shown in Figure 1, promptly, comprise a reaction vessel 1 and the splendid attire iron carbon filler in container, sewage enters iron-carbon micro-electrolysis reactor (A to) by the water-in of reaction vessel bottom, after little electrolysis treatment, discharge by the water outlet on reaction vessel top again.But this kind iron-carbon micro-electrolysis reactor is behind life-time service, the easy passivation of iron carbon filler wherein, and the iron carbon filler of its underpart hardens easily, so need regularly to handle, it operate inconvenient, and is with high costs.
The utility model content
The purpose of this utility model is to propose a kind of reinforcement iron-carbon micro-electrolysis reactor, though its inner iron carbon filler through life-time service, also can passivation and harden, thus can overcome deficiency of the prior art.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of reinforcement iron-carbon micro-electrolysis reactor, the reaction vessel that comprises inner splendid attire iron carbon filler, it is characterized in that, plural bearing bed vertically is set in the described reaction vessel at interval, lay aeration and back-purge system on each bearing bed respectively, and plurality of through holes all is set on each bearing bed.
Particularly, described bearing bed is a steel sheet, and lays a plurality of vertical through holes on this steel sheet.
Described aeration and back-purge system comprise the complex root aeration tracheae that is laid on the bearing bed, and this complex root aeration tracheae is communicated with an airing system.
Described aeration and back-purge system comprise a laying aeration house steward and complex root aeration arm at grade, each aeration arm one end sealing, and the other end is communicated with the aeration house steward, and lays a plurality of ventilating pits on each aeration arm body.
Described air supply header is communicated with an airing system by a pneumavalve.
Corresponding to each supporting course a plurality of openings for operator's turnover are set on the wall of described reaction vessel, and the cover closing member that can cooperate with it is set on this opening.
Described reaction vessel mainly is made up of detachable basic container member more than two, and each basic container intracavity bottom is provided with bearing bed, and the lower end of a basic container and the upper end sealing engagement that basic container thereunder is set.
Corresponding to each supporting course a plurality of back flushing water port are set on the wall of described reaction vessel.
The utility model is by being provided with a plurality of supporting courses in reaction vessel, thereby in reaction vessel, formed multilayer iron carbon bed structure, reduced pressure to underfilling, alleviated the filler situation that hardens, and by uniform aeration and back-purge system on each supporting course, thereby can wash the iron carbon filler that each supporting course carried separately, and the backwashing water in each supporting course can directly be discharged without other supporting courses, and the flush time of each layer iron carbon filler is controlled by equipment such as pneumavalves, realize the back flushing automatization, reduced back flushing carbonated drink consumption.In general, the utility model has been avoided hardening and passivation of iron carbon filler by adopting micro-pore aeration and rational flow velocity to washing away around the iron carbon filler.
Further, the utility model is also by being provided with a plurality of openings for operator's turnover corresponding to each supporting course, so that operator overhaul strengthening the iron-carbon micro-electrolysis reactor on the wall of reaction vessel.
Further, the utility model is also by carrying out split-type design to strengthening the iron-carbon micro-electrolysis reactor, the easier assembling of this reinforcement iron-carbon micro-electrolysis reactor is safeguarded, the service work that operator are carried out reinforcement iron-carbon micro-electrolysis reactor can be more convenient.
Compared with prior art, the beneficial effects of the utility model are: this reinforcement iron-carbon micro-electrolysis structure of reactor is simple, being easy to assembling safeguards, the advantage that had both had fluidized-bed, plug-flow characteristic when having kept fixed bed work has again broken through little, the restriction that can't large-scale promotion of original technology reactor volume, and can effectively overcome passivation and the harden phenomenon of inner iron carbon filler behind life-time service, thereby can reduce the operational cost of producer, and increase work efficiency.The utility model can be widely used in as waste water in dye production, dyeing waste water, pharmacy waste water, organic and petrochemical wastewater, Synthetic Detergent Wastewater, oily(waste)water, cyanide wastewater, the pre-treatment and the advanced treatment of electroplating wastewater, Coal-gas Washing Water Using, leather-making waste water and kitchen waste water etc.
Description of drawings
Fig. 1 is the structural representation of iron-carbon micro-electrolysis reactor in the prior art;
Fig. 2 is a structural representation of strengthening the iron-carbon micro-electrolysis reactor among the embodiment 1;
Fig. 3 is a vertical view of strengthening the iron-carbon micro-electrolysis reactor among the embodiment 1.
Embodiment
Below in conjunction with drawings and the specific embodiments the technical solution of the utility model is described further.
Embodiment 1 is shown in Fig. 2～3, the reinforcement iron-carbon micro-electrolysis reactor of present embodiment comprises the reaction vessel 1 of a cylindricality, some round thin steel 3 vertically are set in this reaction vessel at interval, all be covered with vertical through hole on each steel sheet, simultaneously, also lay aeration and back-purge system 2 on each steel sheet respectively, this aeration and back-purge system comprise an aeration house steward 22 and the some aeration arms 21 that radially is fixed on the steel sheet, each aeration arm one end sealing, the other end and aeration house steward vertical connection, and be covered with breeder tube on each aeration branch pipe wall.This aeration house steward one end is communicated with (airintake direction B) by a pneumavalve with an airing system that is arranged on the reaction vessel outside, and this aeration house steward and aeration arm all can adopt preparations such as engineering plastics.All fill the iron carbon filler between above-mentioned each steel sheet.Simultaneously, corresponding to each aeration and back-purge system 2 some back flushing water port 5 are set also on the wall of above-mentioned reaction vessel, each back flushing water port independently is communicated with one by one with aeration and back-purge system 2 on each supporting course, and the backwashing water in each supporting course can directly be discharged without other supporting courses.Postscript also is provided with some openings 4 for operator's turnover corresponding to each steel sheet position on the wall of above-mentioned reaction vessel, and the cover closing member (not shown) that can cooperate with it is set on the above-mentioned opening.
This strengthens the iron-carbon micro-electrolysis reactor, and is reasonable in design, and operation is smooth, and its technical characterstic and major function are as follows:
(1) both had the advantage of fluidized-bed, the plug-flow characteristic when having kept fixed bed work again.
(2) adopted the design concept of staged reactor, made the iron carbon filler on each steel sheet, independent stratification can be avoided the overweight and pressure that produce of reaction container bottom iron carbon filler to cause and harden;
(3) the above supporting course of two-stage can be set, break through the little restriction of original technology reactor volume, can be used for the wastewater treatment of big yield.
(4) every stage reactor is provided with independently aeration and back-purge system, can independently control the time and the speed of back flushing, saves backwash gas, water consumption.
This reinforcement iron-carbon micro-electrolysis reactor can solve well that conventional iron carbon bed easily hardens and the shortcoming of passivation.
The structure of the reinforcement iron-carbon micro-electrolysis reactor of embodiment 2 present embodiments is substantially the same manner as Example 1, but it has adopted split type design concept, promptly, reaction vessel is established with detachable some basic container member composition, each basic container intracavity bottom is provided with steel sheet, also lay aeration and backwash gas device on the steel sheet respectively, and the lower end of a basic container and the upper end sealing engagement that basic container thereunder is set.Design by this can make and strengthen the easier assembling maintenance of iron-carbon micro-electrolysis reactor, and the service work that operator are carried out reinforcement iron-carbon micro-electrolysis reactor can be more convenient.
Reinforcement iron-carbon micro-electrolysis reactor of the present utility model adopts continuously-running duty, the water of promptly being back to back.In operational process,, regulate the pH value of intaking by the detection of pH value.Final outflow water utilizes alkali lye to regulate pH value alkalize behind aeration, fully staticly settles behind the aeration, and supernatant liquor carries out reuse, and precipitating sludge can the press filtration outward transport.
When the utility model is dropped into practical application, reinforcement iron-carbon micro-electrolysis reactor with bed body size Φ 1800 * 7000mm is an example, the speed of its treatment of dyeing and printing is at 20～30t/h (deciding on the water quality situation), COD clearance 60～80% (being to decide), percent of decolourization 70～90% (deciding), directly working cost (power consumption, material consumption): 0.1～0.3 yuan/t on the water quality situation on the water quality situation.As seen, the utlity model has good sewage treatment capacity.
In addition, according to the decision of State Council, all industrial pollution source in the whole nation all will be at qualified discharge comprehensively the Eleventh Five-Year Plan period.According to rough estimates, more than 31500 families, wherein chemical industry accounts for 22% to domestic relevant industrial pollution source at least, and the textile printing and dyeing process hides accounts for 40%, even wherein only there are 1/3rd producers to use micro electrolysis tech, also will reach 10500 families.If each source of pollution on average needs 3 to strengthen the iron-carbon micro-electrolysis reactors, then need this product about about 30,000, by 50,000 yuan of every prices of bed body, the output value can reach 1,500,000,000, profits tax 15%.Therefore, the utility model will produce very objective economic benefit if drop into practical application.
It is pointed out that the foregoing description only is explanation technical conceive of the present utility model and characteristics, its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (8)
1. strengthen the iron-carbon micro-electrolysis reactor for one kind, the reaction vessel that comprises inner splendid attire iron carbon filler, it is characterized in that, plural bearing bed vertically is set in the described reaction vessel at interval, lay aeration and back-purge system on each bearing bed respectively, and plurality of through holes all is set on each bearing bed.
2. reinforcement iron-carbon micro-electrolysis reactor according to claim 1 is characterized in that described bearing bed is a steel sheet, and lays a plurality of vertical through holes on this steel sheet.
3. reinforcement iron-carbon micro-electrolysis reactor according to claim 1 is characterized in that, described aeration and back-purge system comprise the complex root aeration tracheae that is laid on the bearing bed, and this complex root aeration tracheae is communicated with an airing system.
4. reinforcement iron-carbon micro-electrolysis reactor according to claim 3, it is characterized in that, described aeration and back-purge system comprise a laying aeration house steward and complex root aeration arm at grade, each aeration arm one end sealing, the other end is communicated with the aeration house steward, and lays a plurality of ventilating pits on each aeration arm body.
5. reinforcement iron-carbon micro-electrolysis reactor according to claim 4 is characterized in that, described air supply header is communicated with an airing system by a pneumavalve.
6. reinforcement iron-carbon micro-electrolysis reactor according to claim 1 is characterized in that, corresponding to each supporting course a plurality of openings for operator's turnover is set on the wall of described reaction vessel, and the cover closing member that can cooperate with it is set on this opening.
7. according to claim 1 or 6 described reinforcement iron-carbon micro-electrolysis reactors, it is characterized in that, described reaction vessel mainly is made up of detachable basic container member more than two, each basic container intracavity bottom is provided with bearing bed, and the lower end of a basic container and the upper end sealing engagement that basic container thereunder is set.
8. according to the reinforcement iron-carbon micro-electrolysis reactor under claim 1 or 6, it is characterized in that, corresponding to each supporting course a plurality of back flushing water port are set on the wall of described reaction vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200003740U CN201620059U (en) | 2010-01-11 | 2010-01-11 | Forced iron-carbon electrolysis reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200003740U CN201620059U (en) | 2010-01-11 | 2010-01-11 | Forced iron-carbon electrolysis reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620059U true CN201620059U (en) | 2010-11-03 |
Family
ID=43023516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200003740U Expired - Fee Related CN201620059U (en) | 2010-01-11 | 2010-01-11 | Forced iron-carbon electrolysis reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620059U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295328A (en) * | 2011-08-09 | 2011-12-28 | 江苏林格纯水设备有限公司 | Iron-carbon micro-electrolysis apparatus |
| CN102583658A (en) * | 2012-01-09 | 2012-07-18 | 广州市金龙峰环保设备工程有限公司 | Iron-carbon micro-electrolysis reaction system of multistage fluidized bed |
| CN102807269A (en) * | 2012-08-30 | 2012-12-05 | 张家港市三星净化设备制造有限公司 | Microelectrolysis catalytic device for sewage treatment equipment |
| CN105923715A (en) * | 2016-05-04 | 2016-09-07 | 西安建筑科技大学 | Microelectrode multipolar coupling electrochemical reaction device and preparing method |
| CN106554057A (en) * | 2016-11-25 | 2017-04-05 | 江苏鼎弘环境科技有限公司 | A kind of micro-electrolysis reactor of sewage containing tar |
-
2010
- 2010-01-11 CN CN2010200003740U patent/CN201620059U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295328A (en) * | 2011-08-09 | 2011-12-28 | 江苏林格纯水设备有限公司 | Iron-carbon micro-electrolysis apparatus |
| CN102583658A (en) * | 2012-01-09 | 2012-07-18 | 广州市金龙峰环保设备工程有限公司 | Iron-carbon micro-electrolysis reaction system of multistage fluidized bed |
| CN102583658B (en) * | 2012-01-09 | 2013-06-26 | 中国人民解放军广州军区空军勘察设计院 | Iron-carbon micro-electrolysis reaction system of multistage fluidized bed |
| CN102807269A (en) * | 2012-08-30 | 2012-12-05 | 张家港市三星净化设备制造有限公司 | Microelectrolysis catalytic device for sewage treatment equipment |
| CN105923715A (en) * | 2016-05-04 | 2016-09-07 | 西安建筑科技大学 | Microelectrode multipolar coupling electrochemical reaction device and preparing method |
| CN106554057A (en) * | 2016-11-25 | 2017-04-05 | 江苏鼎弘环境科技有限公司 | A kind of micro-electrolysis reactor of sewage containing tar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF SUZHOU Free format text: FORMER OWNER: LIU YONGJIAN Effective date: 20120517 Free format text: FORMER OWNER: JIANG XINGHUA ZHUANG HONG WANG XIULING ZHANG YUE Effective date: 20120517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120517 Address after: 215011 Binhe Road, Jiangsu, Suzhou, No. 1701 Patentee after: University of Science and Technology of Suzhou Address before: 215011 No. 99 ho Shan Road, hi tech Zone, Jiangsu, Suzhou Province, 7-502 Co-patentee before: Jiang Xinghua Patentee before: Liu Yongjian Co-patentee before: Zhuang Hong Co-patentee before: Wang Xiuling Co-patentee before: Zhang Yue |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20120111 |