CN103408100A - Magnetically assisted photocatalysis sewage treatment device - Google Patents
Magnetically assisted photocatalysis sewage treatment device Download PDFInfo
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- CN103408100A CN103408100A CN2013103647697A CN201310364769A CN103408100A CN 103408100 A CN103408100 A CN 103408100A CN 2013103647697 A CN2013103647697 A CN 2013103647697A CN 201310364769 A CN201310364769 A CN 201310364769A CN 103408100 A CN103408100 A CN 103408100A
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- reactor
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- waste water
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- 239000010865 sewage Substances 0.000 title abstract description 26
- 238000007146 photocatalysis Methods 0.000 title abstract description 14
- 230000001699 photocatalysis Effects 0.000 title abstract description 14
- 230000005291 magnetic effect Effects 0.000 claims abstract description 68
- 238000005189 flocculation Methods 0.000 claims abstract description 20
- 230000016615 flocculation Effects 0.000 claims abstract description 20
- 239000006148 magnetic separator Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 11
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 230000000630 rising effect Effects 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 10
- 239000011941 photocatalyst Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000011514 reflex Effects 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000003311 flocculating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010888 cage effect Methods 0.000 description 1
- 230000003047 cage effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The invention discloses a magnetically assisted photocatalysis sewage treatment device which comprises a motor, a reactor, a magnetic coil, a rotating device, a high-gradient magnetic separator and a magnetic flocculant reflex pump, wherein the reactor is internally provided with the rotating device and an ultraviolet lamp group; the rotating device is provided with a magnet strip group and a mud scraping board. According to the invention, sewage enters from the water inlet pipe of the reactor, and a magnetic photocatalyst is reacted with the sewage under the irradiation of ultraviolet light through the stirring of magnet strips and magnetic field action, so that the effect of sewage treatment is achieved; pollutants contained in the sewage are effectively removed under the action of a magnetic field, photocatalysis, flocculation, and the like; the magnetic photocatalyst can also be recovered, so that wide market application prospect is achieved. The magnetically assisted photocatalysis sewage treatment device disclosed by the invention has the characteristics of compact structure, small occupied area, low operating cost, good treatment effect, and the like.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to the treatment unit that a kind of magnetic helps photocatalysis sewage.
Background technology
Along with scientific and technical development and comprehensive utilization interdisciplinary, become a novel water technology by the pollutent in the photocatalysis oxidation technique degradation water (the especially pollutent of high density and lower concentration) in recent years.It can use separately also can combine use with other water technology, and in its degradation process, low, the easy handling of energy consumption, non-secondary pollution and cost are low, and it is a technology that has development prospect.Photo catalysis reactor has determined the performance of catalyst activity and also will directly affect the efficiency of light-catalyzed reaction to the problem of utilizing of light as the main equipment of light-catalyzed reaction.The design of photo catalysis reactor and development are that photocatalysis technology moves towards practical committed step.The photo catalysis reactor of a success must embody the optimal combination of catalyst activity and light source utilization.How improving the utilization ratio of light source and making catalyst activity obtain maximum performance to have become the center of reactor development and exploitation is also one of emphasis of photochemical catalysis research.Drink water and treatment facility extensive market thereof, this development for new technology provides huge space.China researchist has developed numerous photo catalysis reactors according to different separately design philosophys.
In the techniques such as sewage disposal purification, can utilize Magnetic Field on Water, the direct degradation of organic substances of the effect of other solvents and dissolved oxygen.Magnetic effect can promote that oxygen dissolves in water, and may in water, produce active oxygen.These active oxygen groups have stronger oxidation susceptibility, the organism in can oxidizing water, thus reduce the organic content in water body.And certain stirring action can be played in the magnetic field that the magnet strip of rotation produces, organic particle can be attached in the magnetic flocculation agent, and pollution substance generation magnetic on magnetic is poly-flocculates and accelerate sedimentation thereby make to be adsorbed on.Residing medium-the water solvent of organism is under extraneous the action of a magnetic field, rationality character can change a lot, in the liquid-phase chemical reaction process, the electrostatic interaction by solvent, cage effect etc. exert an influence to chemical reaction process, and the speed short period of time of oxidation operation degraded is improved rapidly.Especially in the reaction of photocatalysis to degrade organic matter, because the photocatalytic degradation reaction times is longer, speed of reaction is slower, makes degradation efficiency lower.Magnetic field can increase substantially the speed of reaction of photocatalytic degradation sewage, promotes organic further degraded.Good treatment effect be can obtain adding not only of magnetic field in addition, and new impurity and the introducing of some objectionable impurities in treating processes, reduced.
Disclosed patent magnetic flocculation reactor (CN 101423272A) and short time flocculating-high speed settling waste disposal plant (CN 102126774A), this class reactor just has separately the flocculating settling function, and does not have the function of photocatalysis to degrade organic matter.The optomagnetic device and method of disposing of sewage of disclosed patent (CN 101618918A), this device is low to the utilization ratio of UV-light, and floor space is large, complex structure.At a kind of optomagnetic waste disposal plant of disclosed patent (CN 102942283A), Distribution of Magnetic Field inequality in this device, magnetic photocatalyst can not be uniformly distributed in sewage, so this device has the defects such as pair UV-light utilization ratio is low, flocculating effect is poor, the consumption of catalyzer is large.
Summary of the invention
The object of the invention is to the deficiency for existing sewage photocatalysis treatment device, provide that a kind of compact construction, floor space are little, good sewage processing effect, reduced investment, waste disposal plant that running cost is low.
To achieve these goals, the present invention by the following technical solutions: a kind of magnetic helps light catalytic waste water processing device, comprising: electric motor, reactor, magnetic coil, swivel arrangement, high gradient magnetic separator and magnetic flocculation agent reflux pump; Wherein said electric motor is arranged at reactor top central authorities; The bottom of described reactor is taper, is provided with swivel arrangement and ultraviolet lamp group at inside reactor, on swivel arrangement, is provided with magnet strip group and cleaning shoe, and cleaning shoe is positioned at the bottom of reactor; The ultraviolet lamp group is fixed in reactor; The outer electric motor of reactor is connected with swivel arrangement, can drive magnet strip group and cleaning shoe rotation; On the top of reactor, be provided with water inlet pipe and rising pipe, in the two bottom sides of reactor, be provided with shore pipe and be connected with the high gradient magnetic separator of reactor outside; Described magnetic coil is positioned at the bottom outside of reactor; Described magnetic flocculation agent reflux pump connects high gradient magnetic separator, and by drug-transmitting pipe, connects the sparger that stretches into reactor head central authorities.
Described ultraviolet lamp group comprises the ultraviolet lamp tube over; Described magnet strip group comprises the magnet strip over; Described ultraviolet lamp tube and magnet strip are staggered evenly distributed.
Described reactor is provided with baffle plate in the inboard of rising pipe.
Baffle plate bottom in described rising pipe one side arranges evacuated tube.
Described high gradient magnetic separator is connected with mud discharging mouth.
At described evacuated tube, shore pipe, mud discharging mouth and drug-transmitting pipe, be provided with control valve.
Described motor speed is 30～60rpm.
By rotatingfield, increase the flocculating settling effect of lifting sewage particulate pollutant in magnetic field on the one hand; On the other hand, adding of magnetic field can be strengthened the light-catalyzed reaction effect, promotes pollutant removal, can significantly shorten the settling time simultaneously, reduces the hydraulic detention time of reaction unit, reduces facility investment; The 3rd, magnetic separating device can be realized the recovery of magnetic photocatalyst, reduces the running cost of device.
This waste disposal plant is when carrying out work, sewage enters reactor by water inlet pipe, magnetic photocatalyst adds reactor by sparger simultaneously, magnet strip on swivel arrangement carries out uniform stirring to the sewage that adds magnetic photocatalyst under the rotating speed of rotating speed 30～60rpm, under the irradiation of the ultraviolet lamp tube of the pollution substance in sewage in reactor and under the acting in conjunction of the uniform magnetic field of magnet rotation generation, light-catalyzed reaction and magnetic response occur, and the pollution substance in sewage is removed.Magnetic photocatalyst can also carry out flocculation reaction to the suspended solid material in sewage simultaneously.After reaction 10～30min, close swivel arrangement and ultraviolet light, open magnetic coil, magnetic photocatalyst in sewage is taken and is wrapped up in pollution substance and form mud and sink fast, after 5～10min, open the valve on shore pipe and open high gradient magnetic separator, in the mud of discharging, magnetic photocatalyst is reclaimed by high gradient magnetic separator, recyclable for reaction process by magnetic flocculation agent reflux pump.
The invention has the beneficial effects as follows: the pollutent in sewage passes through magnetic field, photochemical catalysis, and the effects such as flocculation are removed effectively.Magnetic photocatalyst can also reclaim, and market application foreground is extensively arranged.The characteristics such as this waste disposal plant has compact construction, floor space is few, running cost is low, treatment effect is good.
The accompanying drawing explanation
Fig. 1 is the structural representation that a kind of magnetic of the present invention helps light catalytic waste water processing device.
Reference numeral: 1-reactor, 2-electric motor, 3-water inlet pipe, 4-rising pipe, the 5-baffle plate, 6-swivel arrangement, 7-ultraviolet lamp group, 8-magnet strip group, 9-cleaning shoe, 10-magnet strip, the 11-ultraviolet lamp tube, 12-magnetic coil, 13-high gradient magnetic separator, 14-magnetic flocculation agent reflux pump, 15-sparger, 16-evacuated tube, the 17-shore pipe, 18-mud discharging mouth, 19-drug-transmitting pipe.
Embodiment
Below the present invention is described further for the contrast the drawings and specific embodiments.
As shown in Figure 1, this device comprises reactor 1, electric motor 2, water inlet pipe 3, rising pipe 4, baffle plate 5, swivel arrangement 6, ultraviolet lamp group 7, magnet strip group 8, cleaning shoe 9, magnet strip 10, ultraviolet lamp tube 11, magnetic coil 12, high gradient magnetic separator 13, magnetic flocculation agent reflux pump 14, sparger 15, evacuated tube 16, shore pipe 17, mud discharging mouth 18, drug-transmitting pipe 19 and control valve.
Center of top at reactor 1 is provided with electric motor 1, the swivel arrangement 6 of electric motor 1 ligation device 1 inside.The bottom of reactor 1 inside is taper, and the cleaning shoe 9 arranged on swivel arrangement 6 is positioned at the bottom of reactor., at the reactor middle part, the magnet strip 10 on the magnet strip group 8 arranged on swivel arrangement 6 is staggered evenly distributed with the ultraviolet lamp tube 11 on the ultraviolet lamp group 7 that is fixed on inside reactor.The quantity of magnet strip 10 and ultraviolet lamp tube 11 can be 4, or can increase according to actual needs or reduce.Can interior magnet strip group 8 and cleaning shoe 9 rotations of driven rotary device 6 after electric motor 1 starts.In the reactor outer setting, magnetic coil 12 is arranged, position is with respect to the below of inner ultraviolet lamp tube 11 and magnet strip 10.
Magnetic flocculation catalyzer evenly sprays in reactor by sparger 15, and sparger 15 is connected by the magnetic flocculation agent reflux pump 14 of drug-transmitting pipe 19 and reactor outside.
On the top of reactor, be provided with water inlet pipe 3 and rising pipe 4, sewage enters reactor from water inlet pipe 3, after treatment from rising pipe 4 outflow reactors.Two bottom sides at reactor is provided with shore pipe 17, and the mud that is deposited in bottom is struck off by cleaning shoe, discharges through shore pipe 17.Mud enters high gradient magnetic separator 13 through shore pipe 17, by the flocculation of the magnetic in high gradient magnetic separator 13 separated sludges catalyzer, reclaims by magnetic flocculation agent reflux pump 14, and mud is discharged through mud discharging mouth 18.Baffle plate 5 bottoms in rising pipe 4 one sides arrange evacuated tube 16.
Two shore pipes in the two bottom sides of reactor connect high gradient magnetic separators 13 through threeway.In evacuated tube, shore pipe, mud discharging mouth, drug-transmitting pipe and threeway, connect high gradient magnetic separator 13 1 sides and all be provided with control valve, for by-pass cock and flow.
This waste disposal plant is when carrying out work, sewage enters reactor by water inlet pipe, magnetic photocatalyst adds reactor through magnetic flocculation agent reflux pump by sparger simultaneously, homogeneous by the stirring of the magnet strip on swivel arrangement, and rotating speed can also produce uniform magnetic field in the rotation of 30～60rpm magnet strip.Magnetic flocculation photocatalyst first, to the absorption of flocculating of the organic pollutant in sewage, under magnetic field and ultra violet lamp, is degraded to organic pollutant.Undegradable organic contamination is adsorbed on its surface under the magnetic photocatalyst effect, form flocculation mud, after reaction 10～30min, close swivel arrangement and ultraviolet light, open magnetic coil, the magnetic photocatalyst in sewage is taken and is wrapped up in pollution substance and form mud and sink to bottom under fast.After 5～10min, open the valve on shore pipe and open high gradient magnetic separator, opening swivel arrangement, the mud that is deposited in bottom is struck off by cleaning shoe, discharges through shore pipe.By control valve, control the mud entered in shore pipe and enter high gradient magnetic separator, by the flocculation of the magnetic in high gradient magnetic separator separated sludge catalyzer, and reclaim and reflux.Mud is controlled and is discharged by mud discharging mouth through control valve.
Although the present invention with preferred embodiment openly as above; but embodiment and accompanying drawing are not to limit the present invention, anyly be familiar with this skill person, without departing from the spirit and scope of the invention; from working as, can make various changes or retouch, but equally within protection scope of the present invention.What therefore protection scope of the present invention should be defined with the application's claim protection domain is as the criterion.
Claims (7)
1. a magnetic helps light catalytic waste water processing device, it is characterized in that comprising: electric motor, reactor, magnetic coil, swivel arrangement, high gradient magnetic separator and magnetic flocculation agent reflux pump;
Wherein said electric motor is arranged at reactor top central authorities;
The bottom of described reactor is taper, is provided with swivel arrangement and ultraviolet lamp group at inside reactor, on swivel arrangement, is provided with magnet strip group and cleaning shoe, and cleaning shoe is positioned at the bottom of reactor; The ultraviolet lamp group is fixed in reactor; The outer electric motor of reactor is connected with swivel arrangement, can drive magnet strip group and cleaning shoe rotation; On the top of reactor, be provided with water inlet pipe and rising pipe, in the two bottom sides of reactor, be provided with shore pipe and be connected with the high gradient magnetic separator of reactor outside;
Described magnetic coil is positioned at the bottom outside of reactor;
Described magnetic flocculation agent reflux pump connects high gradient magnetic separator, and by drug-transmitting pipe, connects the sparger that stretches into reactor head central authorities.
2. magnetic according to claim 1 helps light catalytic waste water processing device, it is characterized in that: described ultraviolet lamp group comprises the ultraviolet lamp tube over; Described magnet strip group comprises the magnet strip over; Described ultraviolet lamp tube and magnet strip are staggered evenly distributed.
3. magnetic according to claim 1 helps light catalytic waste water processing device, it is characterized in that: described reactor is provided with baffle plate in the inboard of rising pipe.
4. magnetic according to claim 2 helps light catalytic waste water processing device, it is characterized in that: the baffle plate bottom in described rising pipe one side arranges evacuated tube.
5. magnetic according to claim 3 helps light catalytic waste water processing device, it is characterized in that: described high gradient magnetic separator is connected with mud discharging mouth.
6. magnetic according to claim 4 helps light catalytic waste water processing device, it is characterized in that: be provided with control valve at described evacuated tube, shore pipe, mud discharging mouth and drug-transmitting pipe.
7. magnetic according to claim 1 helps light catalytic waste water processing device, it is characterized in that: described motor speed is 30～60rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310364769.7A CN103408100B (en) | 2013-08-21 | 2013-08-21 | A kind of magnetic helps light catalytic waste water processing device |
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| CN201310364769.7A CN103408100B (en) | 2013-08-21 | 2013-08-21 | A kind of magnetic helps light catalytic waste water processing device |
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| CN103408100A true CN103408100A (en) | 2013-11-27 |
| CN103408100B CN103408100B (en) | 2015-08-05 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556348A (en) * | 2014-12-30 | 2015-04-29 | 北京桑德环境工程有限公司 | Magnetic catalytic ozonation device and method |
| CN105540986A (en) * | 2015-12-28 | 2016-05-04 | 辽宁莱特莱德环境工程有限公司 | Composite efficient circulating water treatment device |
| CN105621777A (en) * | 2016-02-18 | 2016-06-01 | 金华知产婺源信息技术有限公司 | Nano magnetic powder catalytic oxidation and wastewater treatment system |
| CN105668692A (en) * | 2016-03-30 | 2016-06-15 | 河南师范大学 | Photocatalytic water treatment device capable of magnetically recovering catalyst and control method thereof |
| CN106186628A (en) * | 2016-09-27 | 2016-12-07 | 华中科技大学 | Sludge water heat treatment and waste liquid catalytic gasification synchronous reaction device thereof |
| CN106277277A (en) * | 2016-09-22 | 2017-01-04 | 常州大学怀德学院 | A kind of waste water automatic processing device based on magnetic nano-catalyst |
| CN106698584A (en) * | 2015-11-18 | 2017-05-24 | 香港中文大学 | Photocatalytic disinfector |
| CN108421643A (en) * | 2018-03-15 | 2018-08-21 | 河南理工大学 | The device that magnetic-particle group moves in deep magnetic journey helical magnetic field regulation and control ore pulp is provided |
| CN110697956A (en) * | 2019-11-19 | 2020-01-17 | 佛山科学技术学院 | Photocatalysis sewage treatment plant with filtering mechanism |
| CN113134332A (en) * | 2021-05-17 | 2021-07-20 | 延安大学 | Catalyst automatic cycle type photocatalysis nitrogen fixation reactor |
| CN113477119A (en) * | 2021-06-28 | 2021-10-08 | 北京北方天鹰科技有限公司 | Sewage treatment device |
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| JPH07809A (en) * | 1993-02-17 | 1995-01-06 | Kenzo Takahashi | Magnetic treatment device for reforming liquid |
| CN101811750A (en) * | 2010-04-02 | 2010-08-25 | 浙江大学 | Magnetic assist-photolysis composite water purifier and application thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556348B (en) * | 2014-12-30 | 2017-02-22 | 北京桑德环境工程有限公司 | Magnetic catalytic ozonation device and method |
| CN104556348A (en) * | 2014-12-30 | 2015-04-29 | 北京桑德环境工程有限公司 | Magnetic catalytic ozonation device and method |
| CN106698584A (en) * | 2015-11-18 | 2017-05-24 | 香港中文大学 | Photocatalytic disinfector |
| CN105540986A (en) * | 2015-12-28 | 2016-05-04 | 辽宁莱特莱德环境工程有限公司 | Composite efficient circulating water treatment device |
| CN105540986B (en) * | 2015-12-28 | 2018-03-16 | 辽宁莱特莱德环境工程有限公司 | Composite highly effective circulating water treatment device |
| CN105621777A (en) * | 2016-02-18 | 2016-06-01 | 金华知产婺源信息技术有限公司 | Nano magnetic powder catalytic oxidation and wastewater treatment system |
| CN105668692A (en) * | 2016-03-30 | 2016-06-15 | 河南师范大学 | Photocatalytic water treatment device capable of magnetically recovering catalyst and control method thereof |
| CN106277277A (en) * | 2016-09-22 | 2017-01-04 | 常州大学怀德学院 | A kind of waste water automatic processing device based on magnetic nano-catalyst |
| CN106186628A (en) * | 2016-09-27 | 2016-12-07 | 华中科技大学 | Sludge water heat treatment and waste liquid catalytic gasification synchronous reaction device thereof |
| CN106186628B (en) * | 2016-09-27 | 2019-08-23 | 华中科技大学 | Sludge hydro-thermal process and its waste liquid catalytic gasification synchronous reaction device |
| CN108421643A (en) * | 2018-03-15 | 2018-08-21 | 河南理工大学 | The device that magnetic-particle group moves in deep magnetic journey helical magnetic field regulation and control ore pulp is provided |
| CN110697956A (en) * | 2019-11-19 | 2020-01-17 | 佛山科学技术学院 | Photocatalysis sewage treatment plant with filtering mechanism |
| CN113134332A (en) * | 2021-05-17 | 2021-07-20 | 延安大学 | Catalyst automatic cycle type photocatalysis nitrogen fixation reactor |
| CN113134332B (en) * | 2021-05-17 | 2022-05-20 | 延安大学 | Catalyst automatic cycle type photocatalysis nitrogen fixation reactor |
| CN113477119A (en) * | 2021-06-28 | 2021-10-08 | 北京北方天鹰科技有限公司 | Sewage treatment device |
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Effective date of registration: 20171208 Address after: 212100 Zhenjiang City, Jiangsu province Dantu District Tan Kwai Road No. 1 Patentee after: JIANGSU HUIZHI INTELLECTUAL PROPERTY SERVICES Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: Jiangsu University |
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