CN205999070U - A kind of novel sewage treatment unit - Google Patents
A kind of novel sewage treatment unit Download PDFInfo
- Publication number
- CN205999070U CN205999070U CN201620831968.3U CN201620831968U CN205999070U CN 205999070 U CN205999070 U CN 205999070U CN 201620831968 U CN201620831968 U CN 201620831968U CN 205999070 U CN205999070 U CN 205999070U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- film component
- filtering film
- housing
- treatment unit
- 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 - Fee Related
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
This utility model belongs to membrance separation technical field of sewage, a kind of specifically related to novel sewage treatment unit, including housing, water inlet pipe, blow-off pipe, end cap, centering frame and screw rod, housing both sides connect end cap, it is provided with centering frame inside end cap, it is arranged with the filtering film component of cavity structure in housing, filtering film component is fixed by the end cap extruding of housing both sides, on housing, one end is provided with the water inlet connecting with water inlet pipe and filtering film component, the other end is provided with the sewage draining exit connecting with blow-off pipe and filtering film component, it is provided with product water entrance below housing, filtering film component includes at least three layer filtration film, successively decrease from inside to outside in the filter opening aperture of filter membrane, gap between filtering film component surrounding and housing forms product water chamber；Screw rod is arranged in filtering film component cavity, and screw rod is provided with helical blade, and filtering film component inner chamber and centering frame socket are stretched out in screw rod two ends.This utility model structure is simple, be not easily blocked, sewage water filtration effect is good.
Description
Technical field
This utility model belongs to membrance separation technical field of sewage and in particular to a kind of novel sewage treatment unit.
Background technology
At present, in terms of sewage treatment area, the fast development with microfiltration and ultrafiltration membrane technique and membrane material cost
Be gradually lowered, advanced treating is carried out to sewage using membrane separation technique, more pure effluent quality can be reached.Membrance separation
Technology is the technology being separated using the selective penetrated property of film and being purified, and the motive force of process is mainly the pressure of film both sides
Difference.First, when sewage enters membrane module within the chamber, current are too fast, Sewage shock membrane module inwall, and the impurity in sewage is easy-adhesion
In membrane module inner surface, block filter opening, affect filter effect, on the other hand, the impact of water also can affect the use longevity of membrane module
Life.
Secondly, from the point of view of existing membrane material angle, membrane module can be divided into two classes：Inoranic membrane and organic membrane.Organic film preparation
Process is simple, easy to operate, but case of thermal instability, non-refractory, easily expansion, low intensity, service life are short in a liquid.Inorganic
Although film is unlikely to deform, high temperature resistant, organic solvent-resistant, antimicrobial burn into rigidity and mechanical strength are good, not aging, its system
Standby complex process.
No matter additionally, membrane module is using organic membrane or inoranic membrane, all there is the susceptible to plugging problem of film, and this asked
Topic directly affects the filtration yield of membrane module and the service life of film, or even flexible membrane module rupture can be made when serious to occur
The phenomenons such as leakage.
Utility model content
The new dirt that the purpose of this utility model is to provide that a kind of structure is simple, is not easily blocked, sewage water filtration effect is good
Water treatment facilities.
For achieving the above object, this utility model employs the following technical solutions：A kind of novel sewage treatment unit, including shell
Body, water inlet pipe, blow-off pipe, end cap, centering frame and screw rod, described housing both sides connect end cap, are provided with centering frame inside end cap,
It is arranged with the filtering film component of cavity structure, filtering film component is fixed by the end cap extruding of housing both sides, on housing in housing
One end is provided with the water inlet connecting with water inlet pipe and filtering film component, and the other end is provided with and is connected with blow-off pipe and filtering film component
Logical sewage draining exit, is provided with product water entrance below housing, described filtering film component includes at least three layer filtration film, filter membrane
Successively decrease from inside to outside in filter opening aperture, the gap between filtering film component surrounding and housing forms product water chamber；Described screw rod
It is arranged in filtering film component cavity, screw rod is provided with helical blade, screw rod two ends are stretched out filtering film component inner chamber and determined
Heart frame is socketed, and described helical blade is provided with first through hole.
Described filtering film component includes three layer filtration film, is followed successively by single filter film, cascade filtration film and three from inside to outside
Level filter membrane, described single filter film, cascade filtration film and three-stage filtration film are all made pottery using the aluminium oxide containing nanometer diamond alkene
Prepared by porcelain.
Described single filter film thickness is 10mm, and filter opening aperture is 20 μm；Cascade filtration film thickness is 4mm, filter opening hole
Footpath is 1 μm；Three-stage filtration film thickness is 1mm, and filter opening aperture is 0.1 μm.
Described centering frame includes the body of rod of central through hole and the support bar of body of rod surrounding, and described support boom end is tight with end cap
Contiguity is touched, and described screw rod is socketed in central through hole, and described body of rod outer end is provided with the cap bag stoping screw rod from sliding.
Described screw rod is cavity structure, and described screw rod surface is provided with the second through hole.
Described helical blade is welded on screw rod, and helical blade top is provided with groove, is provided with for clear in described groove
The brush filament of clean filtering film component inner chamber.
Described brush filament is bonded in the groove on helical blade top, and brush filament is by the composite system containing nanometer diamond alkene
Standby.
Described support bar is three, and support boom end is quality of rubber materials.
Compared with prior art, the beneficial effects of the utility model are：
1st, the filtering film component in this utility model includes multiple filtration film, and every layer of filter membrane filter opening aperture not
With, filter opening decreasing pore size from inside to outside, filtering accuracy is also higher；In addition, not needing additionaling power source, helical blade in the design
Can rotate together with screw rod under the impact of water, environmental protection；Helical blade is provided with first through hole, solves sewage and enters
Fashionable, current are too fast, and sewage changes direction then to two side impact single filter films after clashing into helical blade, causes filtration module
The problem that single filter film in part damages, extends the service life of filtering film component, simultaneously, it is to avoid the dirt in sewage is easy
It is attached to single filter film surface, results in blockage, affect filter effect；Meanwhile, the setting of first through hole can reduce helical-blade
The rotary speed of piece, in practical application, opens suitable first through hole on helical blade as needed, can make helical blade
Rotary speed suitable, be unlikely to too fast；And, the setting of first through hole can also mitigate helical blade own wt；
2nd, the three layer filtration film in this utility model is all prepared using the aluminium oxide ceramics containing nanometer diamond alkene, containing receiving
The alumina ceramic membrane of rice diamond alkene has that impact flexibility is good, resistance to acids and bases is strong, heat stability good, high mechanical strength, resistance to micro- life
Using the filtering film component of this material preparation, the advantages of thing corrodes, therefore also has that impact flexibility is good, resistance to acids and bases is strong, thermally-stabilised
Property is good, high mechanical strength the advantages of；And, the particle diameter of nanometer diamond alkene, in Nano grade, can improve the mistake of filtering film component
Filter precision, meanwhile, because nanometer diamond alkene is because having higher specific surface area and stronger absorbability it is possible to absorption effluent
In relatively fine microgranule, the filter opening aperture of single filter film, cascade filtration film and three-stage filtration film using successively successively decreasing, especially
Three-stage filtration membrane filtration hole aperture is tiny, only 0.1 μm, makes penetrating of the solid particle agent with diameter greater than 0.1 μm, colloid and antibacterial
Rate is almost nil, it is possible to achieve completely surface filtration；
3rd, the cavity structure that the screw rod in this utility model is opened for two ends, screw rod surface is provided with the second through hole,
The sewage gone out in screw rod also can impact the pollutant of residual on helical blade to a certain extent, is allowed to landing, punching
Wash helical blade, on the other hand can reduce own wt；
4th, it is provided with the brush filament for cleaning membrane module inner chamber in the helical blade top groove in this utility model, due to brush
Silk is ceaselessly cleared away, and fundamentally solves the problems, such as that single filter film blocks, thus considerably improving infiltration capacity；Due to
Cleaning single filter film surface when, brush filament is constantly rubbed with single filter film, and nanometer diamond alkene have wear-resisting and corrosion resistant
Performance, using the preparation brush filament of the composite containing nanometer diamond alkene, improves the wearability of brush filament, also enhances the resistance to of brush filament
Corrosivity.
Brief description
Fig. 1 is the structural representation of this utility model preferred embodiment；
Fig. 2 is the structural representation of centering frame；
Fig. 3 is Fig. 2 along A-A to profile；
Fig. 4 is the structural representation of the helical blade in this utility model；
Fig. 5 is Fig. 4 along B-B direction profile.
In figure：1 housing, 2 end caps, 3 centering framves, 31 cap bags, 32 central through holes, 4 product water chamber, 5 filtering film components, 51
Single filter film, 52 cascade filtration films, 53 three-stage filtration films, 6 screw rods, 61 second through holes, 7 helical blades, 71 first through holes,
8 water inlet pipes, 9 blow-off pipes, 10 product water entrances.
Specific embodiment
Below in conjunction with Figure of description and concrete preferred embodiment, this utility model is further described, but, not
Therefore limit protection domain of the present utility model.
A kind of novel sewage treatment unit as Figure 1-5, it include housing 1, end cap 2, centering frame 3, screw rod 6,
Water inlet pipe 8 and blow-off pipe 9, housing 1 both sides and end cap 2 are bolted, and are provided with centering frame 3 inside end cap 2, and centering frame 3 wraps
Include central through hole 32 and three support bars, support boom end to be in close contact with end cap 2, support boom end to be made up of quality of rubber materials,
Increase the frictional force between support bar and end cap 2, play the effect of fixing centering frame 3.
It is arranged with the filtering film component 5 of hollow structure, filtering film component 5 is squeezed by the end cap 2 of housing 1 both sides in housing 1
Pressure is fixed, and housing 1 and filtering film component 5 are respectively provided on two sides with the water inlet for being connected with water inlet pipe 8 and are used for and blow-off pipe 9
Connect sewage draining exit, be provided with product water entrance 10 below housing 1, filtering film component 5 includes three layer filtration film, from inside to outside according to
Secondary is 10mm for thickness, and filter opening aperture is 20 μm of single filter film 51；Thickness is 4mm, and filter opening aperture is 1 μm of cascade filtration
Film 52；Thickness is 1mm, and filter opening aperture is 0.1 μm of three-stage filtration film 53.Single filter film 51, cascade filtration film 52 and three-level
Using successively successively decreasing, filtering accuracy is also higher in the filter opening aperture of filter membrane 53.Single filter film 51, cascade filtration film 52 and three-level
Filter membrane 53 is all prepared using the aluminium oxide ceramics containing nanometer diamond alkene, due to the alumina ceramic membrane containing nanometer diamond alkene
Have the advantages that impact flexibility is good, resistance to acids and bases is strong, heat stability good, high mechanical strength, microbial corrosion resistance, so, adopt
The filtering film component 5 of the preparation of the aluminium oxide ceramics containing nanometer diamond alkene also possesses that impact flexibility is good, resistance to acids and bases strong, heat is steady
The advantages of qualitative good, high mechanical strength, microbial corrosion resistance；And, the particle diameter of nanometer diamond alkene is Nano grade, Ke Yiti
The filtering accuracy of high film, meanwhile, nanometer diamond alkene is because having higher specific surface area and stronger absorbability it is possible to inhale
Relatively fine microgranule in attached sewage, especially three-stage filtration membrane filtration hole aperture is tiny, only 0.1 μm, makes with diameter greater than 0.1 μm
The penetrance of solid particle agent, colloid and antibacterial is almost nil, it is possible to achieve completely surface filtration.
Gap between filtering film component 5 surrounding and housing 1 forms product water chamber 4, is provided with product water and enters below housing 1
Outlet 10, leaks in product water chamber 4 through the filtered water of filtering film component 5, then discharges through product water entrance 10.
Filtering film component 5 inner chamber is provided with screw rod 6, and screw rod 6 is welded with helical blade 7, and screw rod 6 two ends were stretched out
Filter membrane component 5 inner chamber is socketed in the central through hole 32 of centering frame 3, and central through hole 32 outer end is provided with prevention screw rod 6 about
The cap bag 31 of movement.When sewage enters membrane module 5 inner chamber, helical blade 7 can be revolved under the impact of water together with screw rod 6
Turn it is not necessary to additionaling power source, environmental protection.Screw rod 6 is cavity structure, and screw rod 6 surface is provided with the second through hole 61, from
The sewage gone out in screw rod 61 also can impact the pollutant of residual on helical blade 7 to a certain extent, is allowed to landing, rises
To the effect rinsing helical blade 7, screw rod 6 own wt on the other hand can be reduced.
Helical blade 7 is provided with first through hole 71, solves sewage and enters fashionable, current are too fast, and sewage clashes into helical blade
Change direction afterwards then to membrane module 5 inner chamber, the problem causing single filter film 51 to damage, extend the use longevity of membrane module 5
Life；Meanwhile, it also avoid the dirt in sewage and be easily attached to single filter film 51 surface, affect infiltration capacity；At the same time it can also drop
The rotary speed of low helical blade 7, in practical application, can open suitable number of first through hole 71 on helical blade 7, make
The rotary speed of helical blade 7 is suitable, is unlikely to too fast, and the setting of first through hole 71 can also mitigate helical blade 7 certainly
Heavy sensation of the body amount.
Helical blade 7 top is provided with groove 72, is bonded with using the composite system containing nanometer diamond alkene in groove 72
Standby brush filament（In figure does not show）, brush filament is along helical blade 7 peripheral top setting, brush consistent with helical blade 7 shape
Silk rotates with helical blade 7, removes the attachment on single filter film 51 surface at any time, solves single filter film 51 susceptible to plugging
Problem, considerably improves infiltration capacity.Using the preparation brush filament of the composite containing nanometer diamond alkene, solve brush filament in cleaning
Constantly rub during single filter film 51 surface contaminants flimsy problem.Simultaneously as nanometer diamond alkene has wear-resisting and corrosion resistant
The performance of erosion, therefore using the preparation brush filament of the composite containing nanometer diamond alkene, also possesses higher wearability and corrosion-resistant
Property.
Operation principle：When needing filter sewage, sewage enters filtering film component 5 inner chamber from water inlet pipe 8, in filtration module
Under pressure inside and outside part 5, the water of the small molecule in sewage is successively through single filter film 51, cascade filtration film 52 and three-level mistake
Product water chamber 4 is entered, now, product water entrance 10 is used as product water out and uses, product after filter membrane 53 filtration separation
Water in water chamber 4 is discharged from product water entrance 10；And the solid particle of macromole, colloid, antibacterial are then trapped within filtration
Membrane module 5 inner chamber.Helical blade 7 rotates under horizontal Sewage shock, under the promotion of helical blade 7, is trapped in filtration
The dirt impurity of membrane module 5 inner chamber discharges filtering film component 5 inner chamber through sewage draining exit from blow-off pipe 9；Meanwhile, helical blade 7 rotates
And then drive brush filament thereon constantly to rotate the dirt cleaning single filter film 51 surface.
When needing to clean filtering film component 5 inner chamber, product water entrance 10 is used as product water inlet and uses, clean
Product water enters product water chamber 4 from product water entrance 10, under the pressure inside and outside filtering film component 5, successively through three
Wash dirt on level filter membrane 53, cascade filtration film 52 and each layer filter membrane of single filter film 51 falls, and dirt is with product
After water flows into filtering film component 5 inner chamber and with flow direction sewage draining exit, finally discharge filtering film component 5 inner chamber from blow-off pipe 9.
This utility model structure is simple, be not easily blocked, sewage water filtration effect is good, without additionaling power source, environment friendly and pollution-free.
Claims (8)
1. a kind of novel sewage treatment unit, including housing, water inlet pipe, blow-off pipe, end cap, centering frame and screw rod, described shell
Body both sides connect end cap, be provided with centering frame, be arranged with the filtering film component of cavity structure, filtering film component in housing inside end cap
Fixed by the end cap extruding of housing both sides, on housing, one end is provided with the water inlet connecting with water inlet pipe and filtering film component,
The other end is provided with the sewage draining exit connecting with blow-off pipe and filtering film component, is provided with product water entrance below housing, its feature
It is, described filtering film component includes at least three layer filtration film, successively decrease from inside to outside in the filter opening aperture of filter membrane, filtering film component
Gap between surrounding and housing forms product water chamber；Described screw rod is arranged in filtering film component cavity, on screw rod
It is provided with helical blade, filtering film component inner chamber is stretched out with centering frame socket in screw rod two ends, and described helical blade is provided with first
Through hole.
2. novel sewage treatment unit as claimed in claim 1 is it is characterised in that described filtering film component includes three layer filtration
Film, is followed successively by single filter film, cascade filtration film and three-stage filtration film, described single filter film, cascade filtration film from inside to outside
All prepared using the aluminium oxide ceramics containing nanometer diamond alkene with three-stage filtration film.
3. novel sewage treatment unit as claimed in claim 2 is it is characterised in that described single filter film thickness is
10mm, filter opening aperture is 20 μm；Cascade filtration film thickness is 4mm, and filter opening aperture is 1 μm；Three-stage filtration film thickness is 1mm, filter
Hole aperture is 0.1 μm.
4. novel sewage treatment unit as claimed in claim 1 is it is characterised in that described centering frame includes the bar of central through hole
Body and the support bar of body of rod surrounding, described support boom end is in close contact with end cap, and described screw rod is socketed in central through hole,
Described body of rod outer end is provided with the cap bag stoping screw rod from sliding.
5. novel sewage treatment unit as claimed in claim 4 is it is characterised in that described screw rod is cavity structure, described
Screw rod surface is provided with the second through hole.
6. novel sewage treatment unit as claimed in claim 5 is it is characterised in that described helical blade is welded on screw rod
On, helical blade top is provided with groove, is provided with the brush filament for clean filtering membrane module inner chamber in described groove.
7. novel sewage treatment unit as claimed in claim 6 is it is characterised in that described brush filament is bonded in helical blade top
Groove in, brush filament by containing nanometer diamond alkene composite prepare.
8. novel sewage treatment unit as claimed in claim 4, it is characterised in that described support bar is three, supports rod end
Portion is quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620831968.3U CN205999070U (en) | 2016-08-03 | 2016-08-03 | A kind of novel sewage treatment unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620831968.3U CN205999070U (en) | 2016-08-03 | 2016-08-03 | A kind of novel sewage treatment unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999070U true CN205999070U (en) | 2017-03-08 |
Family
ID=58198841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620831968.3U Expired - Fee Related CN205999070U (en) | 2016-08-03 | 2016-08-03 | A kind of novel sewage treatment unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999070U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721989A (en) * | 2018-06-29 | 2018-11-02 | 广西康纳环保有限公司 | A kind of fluid purification |
| CN108892208A (en) * | 2018-07-26 | 2018-11-27 | 潍坊科技学院 | A kind of petrochemical wastewater discharging processing device |
| CN110548337A (en) * | 2019-09-03 | 2019-12-10 | 上海市基础工程集团有限公司 | Underground works construction abandonment mud processing apparatus |
| CN111644002A (en) * | 2020-03-24 | 2020-09-11 | 杭州野光环保科技有限公司 | Dust purification device |
| CN112827234A (en) * | 2019-11-22 | 2021-05-25 | 张�诚 | Seawater filtering and cleaning device |
| CN113230735A (en) * | 2021-05-28 | 2021-08-10 | 亳州学院 | Waste water recycling device |
| CN115069089A (en) * | 2022-07-25 | 2022-09-20 | 北京建筑大学 | Forward osmosis sludge deep dehydration device |
| CN117023718A (en) * | 2023-08-22 | 2023-11-10 | 扬州市职业大学(扬州开放大学) | High-cleanliness film filtering device |
-
2016
- 2016-08-03 CN CN201620831968.3U patent/CN205999070U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721989A (en) * | 2018-06-29 | 2018-11-02 | 广西康纳环保有限公司 | A kind of fluid purification |
| CN108892208A (en) * | 2018-07-26 | 2018-11-27 | 潍坊科技学院 | A kind of petrochemical wastewater discharging processing device |
| CN108892208B (en) * | 2018-07-26 | 2021-10-29 | 潍坊科技学院 | Petrochemical effluent discharge treatment device |
| CN110548337A (en) * | 2019-09-03 | 2019-12-10 | 上海市基础工程集团有限公司 | Underground works construction abandonment mud processing apparatus |
| CN112827234A (en) * | 2019-11-22 | 2021-05-25 | 张�诚 | Seawater filtering and cleaning device |
| CN111644002A (en) * | 2020-03-24 | 2020-09-11 | 杭州野光环保科技有限公司 | Dust purification device |
| CN111644002B (en) * | 2020-03-24 | 2021-12-14 | 杭州目博科技有限公司 | Dust purification device |
| CN113230735A (en) * | 2021-05-28 | 2021-08-10 | 亳州学院 | Waste water recycling device |
| CN115069089A (en) * | 2022-07-25 | 2022-09-20 | 北京建筑大学 | Forward osmosis sludge deep dehydration device |
| CN117023718A (en) * | 2023-08-22 | 2023-11-10 | 扬州市职业大学(扬州开放大学) | High-cleanliness film filtering device |
| CN117023718B (en) * | 2023-08-22 | 2024-04-16 | 扬州市职业大学(扬州开放大学) | High-cleanliness film filtering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205999070U (en) | A kind of novel sewage treatment unit | |
| CN104841277A (en) | Rotating cross-flow flat ceramic membrane separation turntable | |
| CN210814175U (en) | Wastewater treatment equipment | |
| CN108479407A (en) | Disc type ceramic film component and its disc type ceramic membrane ultrafitration purifier | |
| CN210033974U (en) | ISW horizontal centrifugal pump with water inlet filtering function | |
| CN111847690A (en) | High-efficient sedimentation tank that sewage treatment used | |
| CN208771220U (en) | Disc type ceramic film component and its disc type ceramic membrane ultrafitration purifier | |
| CN209985028U (en) | Automatic jet cleaning filter | |
| CN205019968U (en) | Liquid filtration membrane group spare | |
| CN112320985A (en) | Intelligent centralized treatment system for sewage station | |
| CN218638164U (en) | Automatic dust remover in workshop for producing chrome-zirconium corundum | |
| CN214913950U (en) | Isobutyl benzene synthetic liquid filter equipment | |
| CN213926593U (en) | Water conservancy conduit inlet crosses and filters cleaning device | |
| CN213725003U (en) | Active carbon filtering device for producing micro-molecular activated water | |
| CN102786106A (en) | Rotary barrel type grating | |
| CN203291612U (en) | Rotary filtering device | |
| CN215692096U (en) | Filtration that industrial sewage used | |
| CN207941289U (en) | A kind of screw blowdown apparatus | |
| CN103463984B (en) | Dielectrophoresis hollow fiber membrane assembly | |
| CN100525877C (en) | Self-cleaning filter for micro-irrigation system | |
| CN212016943U (en) | Silicon carbide film filter | |
| CN204768287U (en) | Dull and stereotyped ceramic membrane separation carousel of rotatory cross -flow formula | |
| CN220779742U (en) | Tubular ceramic membrane equipment suitable for high-viscosity fluid | |
| CN220460346U (en) | Water purification film of water purifier | |
| CN110711495A (en) | Internal circulation membrane filtration backwashing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450006 Ninth Avenue, Jingkai District, Zhengzhou City, Henan Province West of East Patrol Channel, Zhengzhou Export Processing Zone, Henan Province, and North of Fourth Road Patentee after: HENAN SINO-CRYSTAL MICRO-DIAMOND Co.,Ltd. Address before: 450006 Ninth Avenue, Jingkai District, Zhengzhou City, Henan Province West of East Patrol Channel, Zhengzhou Export Processing Zone, Henan Province, and North of Fourth Road Patentee before: HENAN YUXING SINO-CRYSTAL MICRO-DIAMOND CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |