CN203803912U - Chemical leaching system for treatment of soil heavy metal and organic pollution - Google Patents
Chemical leaching system for treatment of soil heavy metal and organic pollution Download PDFInfo
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- CN203803912U CN203803912U CN201320892743.5U CN201320892743U CN203803912U CN 203803912 U CN203803912 U CN 203803912U CN 201320892743 U CN201320892743 U CN 201320892743U CN 203803912 U CN203803912 U CN 203803912U
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- chemical leaching
- soil
- leachate
- tank
- leaching system
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- 239000002689 soil Substances 0.000 title claims abstract description 55
- 238000002386 leaching Methods 0.000 title claims abstract description 24
- 239000000126 substance Substances 0.000 title claims abstract description 24
- 229910001385 heavy metal Inorganic materials 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000000926 separation method Methods 0.000 claims abstract description 22
- 239000000701 coagulant Substances 0.000 claims abstract description 14
- 238000005345 coagulation Methods 0.000 claims abstract description 12
- 230000015271 coagulation Effects 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 11
- 238000007873 sieving Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 20
- 238000012216 screening Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 4
- 238000011109 contamination Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 239000003463 adsorbent Substances 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000005067 remediation Methods 0.000 description 4
- 238000003900 soil pollution Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model provides a chemical leaching system for the treatment of soil heavy metal and organic pollution. The chemical leaching system is characterized by comprising soil crushing and sieving equipment, an upward conveyer belt, a spraying system, a downward conveyer belt, muddy water separation and overflow equipment, a first switch valve, an automatic and movable screen plate, an interior barrel body, an exterior barrel body, a second switch valve, a leachate conveying pipeline, a coagulation tank, a precipitation tank, a buffer tank, leachate filtration and adsorption equipment, a treated leachate water outlet conveying pipeline and a leacheate preparation tank; a coagulant storing tank is connected with the coagulation tank through a coagulant conveying pipeline; the leacheate preparation tank is connected with the spraying system through a high-pressure medicine feeding cleaning pump. The chemical leaching system can be used in the engineering, and suitable for leaching and restoring of various soils; in the soil leaching process, slag, waste water and waste gas can be treated to avoid secondary pollution, so that green restoring in the whole restoring process can be realized; the automatization can be realized, lots of human input can be avoided in the whole process.
Description
Technical field
The utility model relates to the drip washing prosthetic appliance of contaminated soil, for multiple soil, especially heavy metal, organic material contaminated soil showering, be applicable to fairly large commercial Application, belong to soil remediation technical field.
Background technology
Soil is the important substance basis of human society activity in production, is natural resources indispensable, that be difficult to regeneration.Current, the situation of China's soil pollution is very severe, and the problems of ecological security of the agricultural product that caused by soil pollution can not be ignored.Because soil environmental pollution has the effect of remittance, in soil, poisonous and harmful chemicals transmits by atmosphere and water body, can harm humans and existence procreation and the life security of animal.This process may be more hidden, but soil pollution has threatened the mankind's safety.Due to the seriousness of soil pollution and the difficulty of reparation thereof, and urgency and demand that contaminated soil is repaired, contaminated soil reparation has become the focus of current Research of Environmental Sciences and has had challenging field.
Over nearly more than 20 years, the countries such as the U.S., Germany, Holland, Britain successively drop into huge manpower, financial resources, carry out contaminated soil reparation research in a deep going way, all obtaining remarkable break-throughs aspect physics reparation, chemistry reparation and biological restoration, in some technology application aspect, entered into commercialization stage.Particularly, common soil remediation technology has thermodynamics recovery technique, thermal desorption recovery technique, burning method, land fill, chemical leaching, composting process, phytoremediation, permeable reactive wall, biological restoration etc.So far, do not have a special technology to there is general applicability.The repair times such as biological restoration, phytoremediation, permeable reactive wall are longer, affect soil remediation process.Burning method, land fill can cause the waste of efficient resource.Thermodynamics recovery technique, thermal desorption recovery technique can cause heating power to pollute, and affect biological growth.Chemical leaching Yin Qi colleges and universities, fast, feature that treating capacity is large receives an acclaim, and is one of method of the improvement soil of twentieth century end Environmental Protection Agency recommendation.
Chemical leaching is divided into original position and two kinds of modes of dystopy.In-situ chemical drip washing has reduced excavation, the handling process cost of soil, but may cause secondary pollution and the possibility polluted underground water of soil, presents and administers halfway situation.Though dystopy drip washing reparation exists the processes such as soil excavation, transportation, its governance process is more easy, thorough compared with original position reparation, not polluted underground water, the leacheate producing can be recycled after treatment, repairing efficiency is short, and contaminant removal efficiency is high, has good economic benefit.
Yet the domestic also contaminated soil chemical leaching prosthetic appliance of more unripe realized automation, and there is certain difficulty for the recycling of leacheate, ripe careful industrial applications equipment is not perfect.
Summary of the invention
Problem to be solved in the utility model is the difficulty that overcomes prior art, a kind of chemical leaching automation equipment that is applicable to big-and-middle-sized contaminated land is provided, make it under less human input, efficiently complete rapidly soil remediation problem, and realize in the lump the processing recycling of leacheate and the separation compression of muddy water etc.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of processing heavy metal-polluted soil, the chemical leaching system of organic contamination, comprise the soil breaking screening plant (1) connecting in turn, to upper conveyor belt (2), spray system (6), to lower conveyor belt (11), mud-water separation overflow device (13), the first switch valve (15), the removable sieve plate of self-action (16), inner staving (17), outside staving (18), second switch valve (19), leachate conveyance conduit (20), coagulation tank (22), stillpot (23), dashpot (25), leachate filters adsorption plant (26), leachate is processed rear water outlet conveyance conduit (31) and leacheate preparation vessel (3), coagulant deposit groove (29) is connected with coagulation tank (22) by coagulant conveyance conduit (27), leacheate preparation vessel (3) is connected with spray system (6) by dosing high pressure washing pump (5).
Spray system (6) inner bottom part is provided with vibrations conveyer belt (8), has the adjustable equally distributed suspension type paddle (7) of speed on it.
Spray system (6) connects charcoal canister adsorbent equipment (10) by vavuum pump (9).
To lower conveyor belt (11), be provided with anti-splash guard (12).
In leacheate preparation vessel (3), be provided with mechanical agitation oar (4).
Mud-water separation overflow device (13) bottom connects conical hopper case (14).
Paddle (21) is set in coagulation tank (22).
Between stillpot (23) and dashpot (25), elevator pump (24) is set.
Metering dosing pump (28) is set on coagulant conveyance conduit (27).
Leachate is processed on rear water outlet conveyance conduit (31) delivery pump (30) is set.
In such scheme, spray system (6) is the cuboid water tank wide with vibrations conveyer belts (8).
In such scheme, mud-water separation overflow device arranges sieving plate in (13), and described sieving plate is the removable screening plate of self-action.
In such scheme, the both sides of vibrations conveyer belts (8) are provided with the protection baffle plate contour with shower height.
In such scheme, vibrations conveyer belts (8) can seesaw simultaneously and move up and down.
In such scheme, mud-water separation overflow device (13) adopts downflow weir form.
In such scheme, the coagulant adopting in coagulant conveyance conduit (27) is one or more in PAC, PAM, PFS.
In such scheme, leachate filters in adsorption plant (26) and adopts absorption neutralization materials, in described absorption neutralization materials, and quartz: lime: the ratio of active carbon is 2:3:2.
In such scheme, the ELUTION METHOD of chemical leaching equipment is as follows:
First, contaminated soil or bed mud are dropped into soil breaking screening plant (1), and after broken and screening, the soil of larger particles or bed mud outward transport are cleaned or landfill, more short grained soil or bed mud enter to upper conveyor belt (2), are sent to vibrations conveyer belt (8).
The second, soil also carries out vertical tremor when slowly advancing along with conveyer belt on vibrations conveyer belt, and suspension type paddle (7) also further strengthens the stirring dynamics that mixes of soil simultaneously; After high-pressure spraying system (6) 40min mixes spray processing, soil or bed mud enter to lower conveyor belt (11) again.
The 3rd, soil warp-wise lower conveyor belt (11) enters mud-water separation overflow device (13), by the first switch valve (15) control muddy water mixed solution, enter mud-water separation overflow device (13) and carry out separation, clarification leacheate overflows and enters outside staving (18) from inner staving (17) top, and mud body is discharged and carried out press filtration from inner staving (17) bottom; After mud-water separation overflow device (13) regularly pours out inter-process, soil carries out airing; Body refuse excretes through second switch valve (19), sends soil breaking screening plant (1) back to and further processes.
Finally, waste water after mud-water separation overflow device (13) separation enters coagulation tank (22) and stirs, enters stillpot (23) again and carry out about 30min precipitation, enter dashpot, slowly flow into from left to right leachate and filter adsorption plant (26), water outlet after treatment enters leacheate preparation vessel (3) reuse.
In such scheme, leachate filters the mobile employing gravity flow of lixivium in adsorption plant (26).
Advantage and the good effect that the utlity model has are:
(1) this equipment can engineering be applied, and is applicable to the drip washing reparation of multiple soil.
(2) in this equipment Soil leaching process, for waste residue, waste water, waste gas, all process, prevent secondary pollution, can realize the green reparation of repair process overall process.
(3) this equipment is realized automation, and overall process is without a large amount of human inputs.
Accompanying drawing explanation
Fig. 1 is device structure schematic diagram of the present utility model
Fig. 2 is spray system schematic diagram
Fig. 3 is the removable screening plate of self-action schematic diagram
The specific embodiment
Referring to Fig. 1, a kind of processing heavy metal-polluted soil, the chemical leaching system of organic contamination, its composition comprises: 1, soil breaking screening plant 2, to upper conveyor belt 3, leacheate preparation vessel 4, mechanical agitation oar 5, dosing high pressure washing pump 6, high-pressure spraying system 7, suspension type paddle 8, vibrations conveyer belt 9, vavuum pump 10, tail gas absorbent charcoal adsorption tank 11, to lower conveyor belt 12, anti-splash guard 13, mud-water separation tank 14, conical hopper case 15, the first switch valve 16, the removable sieve plate 17 of self-action, inner staving 18, outside staving 19, second switch valve 20, leachate conveyance conduit 21, paddle 22, coagulation tank 23, stillpot 24, elevator pump 25, dashpot 26, leachate filters adsorption plant 27, coagulant conveyance conduit 28, metering dosing pump 29, coagulant deposit groove 30, delivery pump 31, leachate is processed rear water outlet conveyance conduit.
The integrated artistic flow process of this specific embodiment: first, contaminated soil or bed mud are dug out from the scene of polluting, then by forklift etc. enter 1, soil breaking screening plant, after broken and screening, the soil of larger particles or bed mud outward transport are cleaned or landfill, more short grained soil or bed mud enter 2, to upper conveyor belt, be sent to 8, vibrations conveyer belt.Vibrations conveyer belt place is airtight space, is provided with vavuum pump and charcoal canister adsorbent equipment, the waste gas producing can be found time to carry out adsorption treatment in soil or bed mud lessivation.Soil also carries out vertical tremor when slowly advancing along with conveyer belt on vibrations conveyer belt, and suspension type paddle also further strengthens the stirring dynamics that mixes of soil simultaneously.6, high-pressure spraying system is cuboid, is furnished with fine and closely woven spray head above, makes leacheate be vaporific uniform large-area spray, increases the contact area of soil and spray liquid.Spray liquid is through 5, after the pressurization of high pressure dosing flushing pump pumps, and great dynamics sprays through spray head.After 40min mixes spray system and processes, soil or bed mud enter 11, to lower conveyor belt, and its gradient is more slow, transmission is slower, reduce that soil enters 13, the impulsive force of mud-water separation tank, and at conveyer belt, arrange 12 around, anti-splash guard, prevent the liquid splash in transport process.Subsequently, mud mixture enters 13, mud-water separation tank, and sieving plate is set in it, can prevent that too much soil from entering 17, inner staving, by the switch of the 15, first switch valve, controls muddy water mixed solution and enters mud-water separation groove, carries out separation.13, mud-water separation tank is mobile reversible type, regularly pour out inter-process after soil carry out airing.16, the removable sieve plate of self-action is that push button is controlled sieve plate, through peripheral operation, can carry out oscilaltion, by body refuse in it through 19, second switch valve excretes, and enters 1, soil screening disintegrating apparatus further processes.Leacheate after spray, with plurality of heavy metal, organic matter etc., discharges after needing to process.In this equipment, adopt 22, coagulating sedimentation and 26, filter absorption bi-level treatment, what wherein in coagulation tank, pump into is one or more in PAC, PFS, several flocculants of PAM, PSAFS, with phase coagulations such as suspension in waste water, heavy metal, organic matters, subsequently, waste water enters stillpot and carries out about 30min precipitation, enter dashpot, slowly flow into from left to right 26, leachate filters adsorption plant, water outlet after treatment enters 3, the reuse of leacheate preparation vessel.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model scope and improvement etc., within all should still belonging to this patent covering scope.
Claims (8)
1. process heavy metal-polluted soil for one kind, the chemical leaching system of organic contamination, it is characterized in that: comprise the soil breaking screening plant (1) connecting in turn, to upper conveyor belt (2), spray system (6), to lower conveyor belt (11), mud-water separation overflow device (13), the first switch valve (15), the removable sieve plate of self-action (16), inner staving (17), outside staving (18), second switch valve (19), leachate conveyance conduit (20), coagulation tank (22), stillpot (23), dashpot (25), leachate filters adsorption plant (26), leachate is processed rear water outlet conveyance conduit (31) and leacheate preparation vessel (3), coagulant deposit groove (29) is connected with coagulation tank (22) by coagulant conveyance conduit (27), leacheate preparation vessel (3) is connected with spray system (6) by dosing high pressure washing pump (5),
Spray system (6) inner bottom part is provided with vibrations conveyer belt (8), has the adjustable equally distributed suspension type paddle (7) of speed on it,
Described spray system (6) connects charcoal canister adsorbent equipment (10) by vavuum pump (9),
Describedly to lower conveyor belt (11), be provided with anti-splash guard (12),
In described leacheate preparation vessel (3), be provided with mechanical agitation oar (4),
Described mud-water separation overflow device (13) bottom connects conical hopper case (14),
Paddle (21) is set in described coagulation tank (22),
Between described stillpot (23) and dashpot (25), elevator pump (24) is set,
Metering dosing pump (28) is set on described coagulant conveyance conduit (27),
Described leachate is processed on rear water outlet conveyance conduit (31) delivery pump (30) is set.
2. chemical leaching system according to claim 1, is characterized in that: described spray system (6) is the cuboid water tank wide with shaking conveyer belts (8).
3. chemical leaching system according to claim 1, is characterized in that: in described mud-water separation overflow device (13), sieving plate is set, described sieving plate is the removable screening plate of self-action.
4. chemical leaching system according to claim 1, is characterized in that: the both sides of described vibrations conveyer belt (8) are provided with the protection baffle plate contour with shower height.
5. chemical leaching system according to claim 1, is characterized in that: described vibrations conveyer belt (8) can seesaw simultaneously and move up and down.
6. chemical leaching system according to claim 1, is characterized in that: described mud-water separation overflow device (13) adopts downflow weir form.
7. chemical leaching system according to claim 1, is characterized in that: the coagulant adopting in described coagulant conveyance conduit (27) is one or more in PAC, PAM, PFS.
8. chemical leaching system according to claim 1, is characterized in that: described leachate filters in adsorption plant (26) and adopts absorption neutralization materials, in described absorption neutralization materials, and quartz: lime: the ratio of active carbon is 2:3:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892743.5U CN203803912U (en) | 2013-12-25 | 2013-12-25 | Chemical leaching system for treatment of soil heavy metal and organic pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892743.5U CN203803912U (en) | 2013-12-25 | 2013-12-25 | Chemical leaching system for treatment of soil heavy metal and organic pollution |
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| Publication Number | Publication Date |
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| CN203803912U true CN203803912U (en) | 2014-09-03 |
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| CN201320892743.5U Expired - Lifetime CN203803912U (en) | 2013-12-25 | 2013-12-25 | Chemical leaching system for treatment of soil heavy metal and organic pollution |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722005A (en) * | 2013-12-25 | 2014-04-16 | 天津生态城环保有限公司 | Chemical leaching system for treating soil heavy metal and organic pollution |
| CN104226680A (en) * | 2014-10-09 | 2014-12-24 | 常州大学 | Device and method for remediating cadmium-contaminated soil |
| CN104230120A (en) * | 2014-09-29 | 2014-12-24 | 中国电建集团中南勘测设计研究院有限公司 | Integrated treating and reusing device for heavy metal chemical leaching liquid waste and method for treating and reusing leaching liquid |
| CN104624631A (en) * | 2015-01-23 | 2015-05-20 | 河海大学 | Device for treating chromium pollution in soil and preventing pollutants from diffusing |
| CN105457995A (en) * | 2015-12-22 | 2016-04-06 | 凯天环保科技股份有限公司 | Soil eluting device |
| CN109513695A (en) * | 2018-12-27 | 2019-03-26 | 江苏核电有限公司 | A kind of dissolution type chlorination pipe dredging device and dredging method |
-
2013
- 2013-12-25 CN CN201320892743.5U patent/CN203803912U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722005A (en) * | 2013-12-25 | 2014-04-16 | 天津生态城环保有限公司 | Chemical leaching system for treating soil heavy metal and organic pollution |
| CN104230120A (en) * | 2014-09-29 | 2014-12-24 | 中国电建集团中南勘测设计研究院有限公司 | Integrated treating and reusing device for heavy metal chemical leaching liquid waste and method for treating and reusing leaching liquid |
| CN104230120B (en) * | 2014-09-29 | 2015-11-11 | 中国电建集团中南勘测设计研究院有限公司 | One heavy metal species chemical leaching liquid waste disposal, recycling integrated device and leacheate process, reuse method |
| CN104226680A (en) * | 2014-10-09 | 2014-12-24 | 常州大学 | Device and method for remediating cadmium-contaminated soil |
| CN104226680B (en) * | 2014-10-09 | 2016-04-13 | 常州大学 | A kind of prosthetic device of cadmium pollution soil and method |
| CN104624631A (en) * | 2015-01-23 | 2015-05-20 | 河海大学 | Device for treating chromium pollution in soil and preventing pollutants from diffusing |
| CN105457995A (en) * | 2015-12-22 | 2016-04-06 | 凯天环保科技股份有限公司 | Soil eluting device |
| CN105457995B (en) * | 2015-12-22 | 2018-09-28 | 航天凯天环保科技股份有限公司 | A kind of soil elution device |
| CN109513695A (en) * | 2018-12-27 | 2019-03-26 | 江苏核电有限公司 | A kind of dissolution type chlorination pipe dredging device and dredging method |
| CN109513695B (en) * | 2018-12-27 | 2023-10-20 | 江苏核电有限公司 | Dissolving type chlorinated pipeline dredging device and dredging method |
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| C14 | Grant of patent or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jinghui Inventor after: Wang Xudong Inventor after: Yang Wei Inventor after: Yuan Shanshan Inventor after: Song Zhenyu Inventor after: Li Ye Inventor after: Wang Wenqian Inventor after: Xi Weili Inventor after: Sun Xudong Inventor after: Jiang Yuguang Inventor before: Zhang Jinghui Inventor before: Wang Xudong Inventor before: Yang Wei Inventor before: Yuan Panpan Inventor before: Song Zhenyu Inventor before: Li Ye Inventor before: Wang Wenqian Inventor before: Xi Weili Inventor before: Sun Xudong Inventor before: Jiang Yuguang |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20150902 |
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| AV01 | Patent right actively abandoned |
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| RGAV | Abandon patent right to avoid regrant |