CN202438326U - Equipment for regenerating saturated activated coke - Google Patents
Equipment for regenerating saturated activated coke Download PDFInfo
- Publication number
- CN202438326U CN202438326U CN2012200621111U CN201220062111U CN202438326U CN 202438326 U CN202438326 U CN 202438326U CN 2012200621111 U CN2012200621111 U CN 2012200621111U CN 201220062111 U CN201220062111 U CN 201220062111U CN 202438326 U CN202438326 U CN 202438326U
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- Prior art keywords
- active coke
- regeneration unit
- regeneration
- saturated
- equipment
- 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
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- 239000000571 coke Substances 0.000 title claims abstract description 139
- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 50
- 230000001172 regenerating effect Effects 0.000 title description 3
- 230000008929 regeneration Effects 0.000 claims abstract description 87
- 238000011069 regeneration method Methods 0.000 claims abstract description 87
- 239000007789 gas Substances 0.000 claims abstract description 38
- 238000011084 recovery Methods 0.000 claims abstract description 27
- 239000002918 waste heat Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000000197 pyrolysis Methods 0.000 claims abstract description 14
- 238000001994 activation Methods 0.000 claims abstract description 13
- 230000004913 activation Effects 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000003546 flue gas Substances 0.000 claims description 30
- 238000009833 condensation Methods 0.000 claims description 29
- 230000005494 condensation Effects 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 21
- 239000000428 dust Substances 0.000 claims description 9
- 238000005338 heat storage Methods 0.000 claims 3
- 230000007613 environmental effect Effects 0.000 claims 2
- 238000010980 drying distillation Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 208000005156 Dehydration Diseases 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 description 9
- 238000010079 rubber tapping Methods 0.000 description 9
- 239000002737 fuel gas Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000008439 repair process Effects 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000013316 zoning Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000010786 composite waste Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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- 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
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
本实用新型公开了一种用于饱和活性焦再生的设备，包括螺旋进料器、活性焦再生机组和活性焦冷却机组，螺旋进料器设置于活性焦再生机组的进料端，活性焦冷却机组设置于活性焦再生机组的出料端；将饱和活性焦输送到活性焦再生机组中；分时段依次进行脱水处理、然后进行干燥、干馏和活化；最后进行冷却处理，以备重新利用。本实用新型按照工艺程序，在不同时间完成饱和活性焦的干燥、干馏、活化工序，以时间换空间，缩短了设备长度分区设计，降低了对设备材质的要求、设备费用和投资风险。同时，采用余热回收方式加热助燃空气回收余热；降低能耗。采用净化处理，避免有毒有害气体和颗粒物污染大气环境。
The utility model discloses a device for regeneration of saturated active coke, which comprises a screw feeder, an active coke regeneration unit and an active coke cooling unit. The unit is set at the discharge end of the active coke regeneration unit; the saturated active coke is transported to the active coke regeneration unit; the dehydration treatment is carried out sequentially in different periods, followed by drying, dry distillation and activation; and finally cooling treatment for reuse. The utility model completes the drying, dry distillation and activation processes of saturated active coke at different times according to the process procedure, exchanges time for space, shortens the design of equipment length divisions, and reduces the requirements for equipment materials, equipment costs and investment risks. At the same time, waste heat recovery is used to heat the combustion air to recover waste heat and reduce energy consumption. Use purification treatment to avoid toxic and harmful gases and particles from polluting the atmosphere.
Description
Technical field
The utility model relates to the device of a kind of activated coke (charcoal) regeneration, particularly a kind of equipment that is used for saturated active coke regeneration.
Background technology
Along with China's rapid development of economy; The surrounding city industrial park occurs in a large number, and the sewage treatment plant of industrial park is generally the composite waste of multiple industry, and the water yield is big, complicated component, biodegradability are very poor; Add the raising of country again to the wastewater treatment standard; The biochemical processing process of extensive use in the past, even add traditional advanced treatment process, the leading indicator COD that China's water is polluted examination is difficult to up to standard.Charcoal absorption is one of method of tertiary sewage treatment, can remove the pollutant that general biochemical treatment and physicochemical treatment unit are difficult to remove.
Activated coke has been adsorbed inorganic matter and organic matter in waste water or the sewage in use; These pollutants make activated coke hydrophobic; Occupy the movable lattice of activated coke; Organic continuous accumulation progressively reduces the activity of activated coke, has influenced the absorption property of activated coke, and activated coke adsorption capacity, adsorption rate are reduced greatly.Can not deal carefully with if be adsorbed with the useless activated coke of harmful substances, not only can cause second environmental pollution, but also can increase the expense that activated coke is handled waste water or sewage.
Activated coke depths science and engineering industry waste water needs reusing after the saturated activated coke regeneration.Reduce processing cost and investment cost, improve ability and the quality of handling waste water or sewage.
Therefore be badly in need of a kind of equipment that is used for saturated active coke regeneration.
The utility model content
In view of this, the utility model technical problem to be solved provides a kind of equipment that is used for saturated active coke regeneration.
The purpose of the utility model is to propose a kind of equipment that is used for saturated active coke regeneration.
The purpose of the utility model realizes through following technical scheme:
A kind of equipment that is used for saturated active coke regeneration that the utility model provides comprises feeding screw, activated coke regeneration unit and activated coke cooling unit, and said feeding screw is used for saturated active coke is transported in the activated coke regeneration unit; Said activated coke regeneration unit; Be used for saturated active coke is carried out successively the operation of drying, destructive distillation and activation; On the sidewall of said activated coke regeneration unit a plurality of gas-fired equipments are installed; The fuel gas inlet of said gas-fired equipment is connected with two gas pipelines, and wherein one is external Gas Pipe, and another root is for recycling the flammable tracheae of the combustible gas that produces when activated coke is regenerated; Said activated coke cooling unit, be used for the saturated active coke after handling purify, cooling processing, reclaim as regeneration activity burnt; Said feeding screw is arranged at the feed end of activated coke regeneration unit, and said activated coke cooling unit is arranged at the discharge end of activated coke regeneration unit.
Further, said activated coke regeneration unit also is provided with combustion-supporting airduct and combustion fan, and said combustion-supporting airduct is connected with the fuel gas inlet of gas-fired equipment, and said combustion fan is connected with combustion-supporting airduct; Said activated coke regeneration unit set inside frid, said frid only turns over the saturated active coke material when saturated active coke regeneration forward transmits, do not push ahead the saturated active coke material, and counter-rotating then can be pushed ahead the saturated active coke material.
Further, said activated coke regeneration unit adopts horizontal outer heat-activated stove, and the temperature control mode of said activated coke regeneration unit adopts automatic temperature control system, and feed way carries out screw feeding through detachable feeding screw.
Further, also comprise condensation deduster, mixed gas separation purifier, flue gas waste heat recovery apparatus, heat-accumulator tank and fume environment protection tapping equipment, said condensation deduster, being used for activated coke regenerated, gas carries out the condensation dust removal process between the unit dedusting; Said mixed gas separation purifier is used for reclaiming the fuel gas that activated coke regeneration unit is dry, retort process produces, and after handling through purification separation, is transported to activated coke regeneration unit and reuses; Said flue gas waste heat recovery apparatus is used for reclaiming the heat of activated coke regeneration unit high-temperature flue gas; Said recovery heat is transported in the heat-accumulator tank with the form that forms high-temperature vapor; In the saturated active coke regenerative process, utilize this part steam and be transported to activated coke regeneration unit and reuse; High-temperature flue gas behind the said recovery heat is discharged in the air through the fume environment protection tapping equipment; Said activated coke regenerating device group is connected with condensation deduster, mixed gas separation purifier, flue gas waste heat recovery apparatus respectively; Said heat-accumulator tank is connected between activated coke regeneration unit and the flue gas waste heat recovery apparatus, said fume environment protection tapping equipment be connected with flue gas waste heat recovery apparatus.
Further; Also comprise the condensation pond; Said condensation pond water inlet end is connected with condensation deduster water side with mixed gas separation purifier water side respectively, and water side, said condensation pond is connected with mixed gas separation purifier water inlet end, condensation deduster water inlet end, flue gas waste heat recovery apparatus water inlet end respectively.
The advantage of the utility model is: the utility model adopts activated coke to handle industrial wastewater, with reusing after the saturated active coke regeneration.Regenerative process mainly comprises drying, destructive distillation, activation process; For the reclaim equiment of, destructive distillation dry and activation zoning design with respect to present employing, the utility model provide in activated coke regenerating device group equipment, according to process; Accomplish drying, destructive distillation, activation procedure at different time; Change the space with the time, shortened the device length zoning design, reduced requirement, cost of equipment and investment risk equipment material.Simultaneously, adopt the waste heat recovery mode to heat the combustion air recovery waste heat; Cut down the consumption of energy.In addition, handle the waste gas of generation, avoid toxic and harmful and particle pollutant atmosphere through adopting condensation deduster, mixed gas separation purifier and fume environment protection tapping equipment.
Other advantage, target and the characteristic of the utility model will be set forth in specification subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantage can be passed through following specification, claims, and the structure that is particularly pointed out in the accompanying drawing realizes and obtains.
Description of drawings
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below, wherein:
The apparatus figure that is used for saturated active coke regeneration that Fig. 1 provides for the utility model embodiment;
The saturated active coke regeneration technology FB(flow block) sketch map that Fig. 2 provides for the utility model embodiment.
Among the figure, 1 expression feeding screw, 2 expression activated coke regeneration units, 3 expression activated coke cooling units, 4 expression condensation dedusters, 5 expression mixed gas separation purifiers, 6 expression flue gas waste heat recovery apparatus, 7 expression heat-accumulator tanks, 8 expression fume environment protection tapping equipments, 9 expression condensation ponds, 10 expression gas-fired equipments, 11 expression combustion fans, 12 expression dedusting fans, 13 expression supply-water pumps.
The specific embodiment
Below will combine accompanying drawing, the preferred embodiment of the utility model will be carried out detailed description; Should be appreciated that preferred embodiment has been merely explanation the utility model, rather than in order to limit the protection domain of the utility model.
The apparatus figure that is used for saturated active coke regeneration that Fig. 1 provides for the utility model embodiment; As shown in the figure: a kind of equipment that is used for saturated active coke regeneration that the utility model provides; Comprise feeding screw 1, activated coke regeneration unit 2, activated coke cooling unit 3, condensation deduster 4, mixed gas separation purifier 5, flue gas waste heat recovery apparatus 6, heat-accumulator tank 7, fume environment protection tapping equipment 8 and condensation pond 9; Said feeding screw 1 is used for saturated active coke is transported in the activated coke regeneration unit 2; Said activated coke regeneration unit 2; Be used for saturated active coke is carried out successively the operation of drying, destructive distillation and activation; On the sidewall of said activated coke regeneration unit 2 at least one gas-fired equipment 10 is installed; The fuel gas inlet of this a plurality of gas-fired equipment 10 is connected with two gas pipelines, and wherein one is external Gas Pipe, and another root is for recycling the flammable tracheae of the combustible gas that produces when activated coke is regenerated; Said activated coke cooling unit 3, be used for the saturated active coke after handling purify, cooling processing, reclaim as regeneration activity burnt; Said feeding screw 1 is arranged at the feed end of activated coke regeneration unit 2, and said activated coke cooling unit 3 is arranged at the discharge end of activated coke regeneration unit 2.
In a set of equipment, according to process, different time is accomplished drying, destructive distillation, activation procedure, changes the space, the shortening device length with the time.Be 1.4h～1.6h drying time, and the destructive distillation time is 0.4h～0.6h, and soak time is 0.9h～1.1h, and discharging time is 0.4h～0.6h.Adopt intermittent feeding, intermittent take-off mode in the present embodiment, wherein feed time is about 0.4h～0.6h, and discharging time is about 0.4h～0.6h.The length of activated coke regeneration unit is about 14m.
Said activated coke regeneration unit 2 also is provided with combustion-supporting airduct and combustion fan 11, and said combustion-supporting airduct is connected with the fuel gas inlet of gas-fired equipment 10, and said combustion fan 11 is connected with combustion-supporting airduct; Said activated coke regeneration unit 2 set inside frids, said frid only turns over the saturated active coke material when saturated active coke regeneration forward transmits, do not push ahead the saturated active coke material, and counter-rotating then can be pushed ahead the saturated active coke material.
Said activated coke regeneration unit 2 adopts horizontal outer heat-activated stove, and the temperature control mode of said activated coke regeneration unit 2 adopts automatic temperature control system, and feed way carries out screw feeding through detachable feeding screw.
Horizontal outer heat-activated stove, maximum operation (service) temperature: 1000 ℃ (cylinder is outer); Temperature commonly used: 800～900 ℃ (cylinder is outer), 700～800 ℃ (in cylinder).Fuel adopts natural gas, and rotating speed is that 0.5～6r/min is adjustable.Output is 12 tons of active carbocoals (butt)/sky; Temperature control mode is an automatic temperature control system; Feed way is that self-conveyor feed is reinforced.
Said condensation deduster 4, being used for activated coke regenerated, gas carries out the condensation dust removal process between unit 2 dedustings; Also be provided with dedusting fan 12 in the present embodiment, this dedusting fan 12 is connected with the condensation deduster, and the water that from the condensation deduster, produces is transported in the condensation pond; Said mixed gas separation purifier 5 is used for reclaiming the fuel gas of activated coke regeneration unit at the high-temperature flue gas of soak time section, is transported to activated coke regeneration unit 2 after handling through purification separation and reuses; Said flue gas waste heat recovery apparatus 6 is used for reclaiming the heat of activated coke regeneration unit at the high-temperature flue gas of soak time section; Said recovery heat is transported in the heat-accumulator tank 7 with the form that forms high-temperature vapor; In the saturated active coke regenerative process, utilize this part heat to produce steam and be transported to activated coke regeneration unit and reuse; High-temperature flue gas after the said recovery is discharged in the air through the fume environment protection tapping equipment; Said activated coke regeneration unit 2 is connected with condensation deduster 4, mixed gas separation purifier 5, flue gas waste heat recovery apparatus 6 respectively; Said heat-accumulator tank 7 is connected between activated coke regeneration unit 2 and the flue gas waste heat recovery apparatus 6, said fume environment protection tapping equipment be connected with flue gas waste heat recovery apparatus.
Said condensation pond 9 water inlet ends are connected with condensation deduster 4 water sides with mixed gas separation purifier 5 water sides respectively, and 9 water sides, said condensation pond are connected with mixed gas separation purifier 5 water inlet ends, condensation deduster water inlet end, flue gas waste heat recovery apparatus water inlet end respectively through supply-water pump 13.
The saturated active coke regeneration technology FB(flow block) sketch map that Fig. 2 provides for the utility model embodiment, as shown in the figure: the utility model embodiment provides a kind ofly is used for saturated active coke regeneration, may further comprise the steps:
1) saturated active coke is transported in the activated coke regeneration unit;
2) in activated coke regeneration unit, successively saturated active coke is carried out processed, carries out drying, destructive distillation then at times, carry out activation at last;
3) with step 2) in end product be transported to and carry out cooling processing in the activated coke cooling device, in order to utilizing again.
4) in the regenerative process of activated coke regeneration unit between dedusting gas carry out the condensation dust removal process.
5) reclaim the fuel gas of activated coke regeneration unit in the high-temperature flue gas of soak time section, be transported to activated coke regeneration unit after handling through purification separation and reuse.
6) reclaim the heat of activated coke regeneration unit in the high-temperature flue gas of soak time section; And be transported in the heat-accumulator tank; In the saturated active coke regenerative process, utilize this part heat to produce steam and be transported to activated coke regeneration unit to reuse, the high-temperature flue gas after the said recovery is discharged in the air through the fume environment protection tapping equipment.
Said at times successively to saturated active coke dewater, dry, destructive distillation and activation processing, meet the following conditions:
Feed time is about 0.4h～0.6h, and be 1.4h～1.6h drying time, and the destructive distillation time is 0.4h～0.6h, and soak time is 0.9h～1.1h, and discharging time is 0.4h～0.6h.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and the scope of the utility model the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200621111U CN202438326U (en) | 2012-02-24 | 2012-02-24 | Equipment for regenerating saturated activated coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200621111U CN202438326U (en) | 2012-02-24 | 2012-02-24 | Equipment for regenerating saturated activated coke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438326U true CN202438326U (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200621111U Expired - Lifetime CN202438326U (en) | 2012-02-24 | 2012-02-24 | Equipment for regenerating saturated activated coke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580704A (en) * | 2012-02-24 | 2012-07-18 | 重庆康达环保产业（集团）有限公司 | Equipment and method for regenerating saturated activated coke |
| CN103376002A (en) * | 2013-06-27 | 2013-10-30 | 密西西比国际水务有限公司 | Method and device for utilizing waste heat of high-temperature flue gas |
| CN107854924A (en) * | 2017-12-05 | 2018-03-30 | 上海克硫环保科技股份有限公司 | A kind of activated coke dry method flue gas processing method and system |
-
2012
- 2012-02-24 CN CN2012200621111U patent/CN202438326U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580704A (en) * | 2012-02-24 | 2012-07-18 | 重庆康达环保产业（集团）有限公司 | Equipment and method for regenerating saturated activated coke |
| CN103376002A (en) * | 2013-06-27 | 2013-10-30 | 密西西比国际水务有限公司 | Method and device for utilizing waste heat of high-temperature flue gas |
| CN103376002B (en) * | 2013-06-27 | 2015-04-08 | 密西西比国际水务有限公司 | Method and device for utilizing waste heat of high-temperature flue gas |
| CN107854924A (en) * | 2017-12-05 | 2018-03-30 | 上海克硫环保科技股份有限公司 | A kind of activated coke dry method flue gas processing method and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING SHUISANGTIAN ENVIRONMENTAL PROTECTION TECH Free format text: FORMER OWNER: CHONGQING KANGDA ENVIRONMENTAL PROTECTION INDUSTRY (GROUP) CO., LTD. Effective date: 20140515 |
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Free format text: CORRECT: ADDRESS; FROM: 401121 YUBEI, CHONGQING TO: 100081 HAIDIAN, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140515 Address after: 100081 Beijing City, Haidian District Zizhuyuan Road Guangyuan Gate No. 5 B1 H area -72 Patentee after: BEIJING SHUISANGTIAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 72 No. 401121 Chongqing northern new hi tech Park Avenue Patentee before: Chongqing Kangda Environmental Protection Industry (Group) Co., Ltd. |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Dawei Inventor before: Shen Jijun Inventor before: Zhao Juanxian Inventor before: Tang Weisen |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHEN JIJUN ZHAO JUNXIAN TANG WEISEN TO: ZHANG DAWEI |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |