CN112190989B - Bioengineering membrane separation filtration equipment - Google Patents
Bioengineering membrane separation filtration equipment Download PDFInfo
- Publication number
- CN112190989B CN112190989B CN202010988691.6A CN202010988691A CN112190989B CN 112190989 B CN112190989 B CN 112190989B CN 202010988691 A CN202010988691 A CN 202010988691A CN 112190989 B CN112190989 B CN 112190989B
- Authority
- CN
- China
- Prior art keywords
- filter
- fixedly connected
- bioengineering
- plate
- water baffle
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of bioengineering, and discloses a bioengineering membrane separation filtration device, which comprises a liquid inlet, wherein one end of the liquid inlet is fixedly provided with a three-way pipe, the other end of the three-way pipe is fixedly connected with a liquid inlet pipe, the middle of the liquid inlet pipe is fixedly provided with a one-way valve, the bottom end of the three-way pipe is fixedly connected with a shunt pipe, the bottom end of the shunt pipe is fixedly connected with a piston barrel, and a piston is movably arranged in the piston barrel. According to the invention, the piston is pushed to move right by pressure during liquid feeding, so that the water baffle rotates, filter pulp during liquid feeding filtration is guided into the filter pulp collecting tank, liquid feeding is stopped after filter residues are fully accumulated, the filter residues are pressed into filter cakes by the press machine, and the water baffle keeps flow guiding by utilizing the pressure, so that the filter pulp flowing out during filter pressing can still be guided into the collecting tank, pressurization is stopped after filter pressing is finished, the water baffle falls under the action of self gravity, so that the filter cakes can fall to a filter cake discharge position, and the automatic separation of the filter pulp and the filter cakes is realized.
Description
Technical Field
The invention relates to the technical field of bioengineering, in particular to a membrane separation and filtration device for bioengineering.
Background
The membrane of membrane separation is a material with selective separation function, the process of utilizing the selective separation of the membrane to realize the separation, purification, concentration of different components of feed liquid is called as membrane separation, the most widely used membrane separation filtration equipment at present is a plate-and-frame filter, it is formed by a plurality of filter plates and filter frames which are arranged alternately, one end is fixed, the other end can let the plate frame move, there is filter cloth between plate and frame, compact or pull open and realize the filtration from the direction of the movable end with the hold-down device, it has large filtration area; the structure is compact; convenient cleaning, maintenance and film replacement, etc.
However, the existing membrane separation filtering equipment still has some problems when in use, because the outlets for discharging the filter pulp and the filter cake are all positioned below the filter plate, the water baffle needs to be rotated in advance when the filter cake is discharged, so that the filter pulp and the filter cake respectively fall into different areas, the filter cake is prevented from falling into the filtered filter pulp, the pollution is caused to the filter pulp, the direction of the water baffle cannot be automatically adjusted, and the operation is complex.
Disclosure of Invention
Aiming at the defects of the prior filtering equipment in the background technology in the using process, the invention provides the bioengineering membrane separation filtering equipment which has the advantage of automatically adjusting the water baffle according to the process flow, and solves the technical problems in the background technology.
The invention provides the following technical scheme: a bio-engineering membrane separation and filtration device comprises a main beam, wherein two sides of the bottom end of the main beam are fixedly connected with foot rests, one end of the main beam is fixedly connected with a thrust plate, one side of the thrust plate is movably connected with a filter plate, one side of the filter plate is movably connected with a pressing plate, one side of the pressing plate is movably connected with an air compressor, the front and the back of the filter plate are fixedly provided with pull plate chains, all the filter plates are sequentially connected by the pull plate chains and are finally connected to the top end of the pressing plate, the other side of the thrust plate is fixedly connected with a liquid inlet, the liquid inlet penetrates through the thrust plate and all the filter plates and can convey suspension liquid into each filter plate, the bottom of the filter plate is fixedly provided with a water baffle plate, the middle of the water baffle plate is fixedly connected with a rotating shaft, the middle of the rotating shaft is movably connected with a fulcrum shaft, and the front of the fulcrum shaft is fixedly connected with a filter pulp collecting tank, the piston type liquid level meter is characterized in that a three-way pipe is fixedly mounted at one end of the liquid inlet, a liquid inlet pipe is fixedly connected to the other end of the three-way pipe, a one-way valve is fixedly mounted in the middle of the liquid inlet pipe, a shunt pipe is fixedly connected to the bottom end of the three-way pipe, a piston barrel is fixedly connected to the bottom end of the shunt pipe, and a piston is movably mounted inside the piston barrel.
Preferably, the filter plate can move along the axis direction of the main beam, and when the pressing plate pushes the filter plate to the left to enable the filter plate to be tightly pressed, the total length of the filter plate is consistent with that of the water baffle.
Preferably, the length of the pull plate chain when the pull plate chain is fully extended is consistent with that of the main beam, and when the pull plate chain is fully extended, the filter plates are mutually separated and uniformly distributed on the main beam.
Preferably, the conduction direction of the one-way valve is from left to right.
Preferably, the rotating shaft is fixedly connected with the water baffle, the water baffle can be driven by the rotating shaft to rotate around the axis of the rotating shaft, and the rotatable range is zero to ninety degrees.
Preferably, one side of the piston is fixedly connected with a threaded rod, and a threaded groove corresponding to the threaded rod is formed in one end of the rotating shaft.
Preferably, the water baffle is in a drooping filter cake opening state under the action of self gravity under the state without external force.
Preferably, the piston cylinder is internally provided with a horizontal guide rail groove, and the outer wall of the piston is provided with a corresponding protruding groove, so that the piston can only move left and right along the horizontal direction without rotating.
The invention has the following beneficial effects:
according to the invention, the piston is pushed to move right by pressure during liquid feeding, so that the water baffle is rotated, filter pulp during liquid feeding filtration is guided into the filter pulp collecting tank, liquid feeding is stopped after filter residues are fully accumulated, the filter residues are pressed into filter cakes by the press machine, and the water baffle keeps flow guide by utilizing the pressure, so that the filter pulp flowing out during filter pressing can still be guided into the collecting tank, pressurization is stopped after the filter pressing is finished, the water baffle falls under the action of self gravity, so that the filter cakes can fall to a filter cake discharge position, automatic separation of the filter pulp and the filter cakes is realized, and the falling of the water baffle is synchronous with the filter pressing completion time, so that the original complicated processes are simplified, and the use of equipment is more convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the water deflector in a state of draining and filtering slurry;
FIG. 3 is a schematic structural view of a state of a filter cake discharging water baffle of the present invention;
FIG. 4 is an enlarged view of a portion of the structure A shown in FIG. 1 according to the present invention.
In the figure: 1. a main beam; 2. a foot rest; 3. a thrust plate; 4. a filter plate; 5. a compression plate; 6. a gas compressor; 7. a plate pulling chain; 8. a liquid inlet; 9. a water baffle; 10. a rotating shaft; 11. a fulcrum; 12. a filtered slurry collecting tank; 13. a liquid inlet pipe; 14. a one-way valve; 15. a shunt tube; 16. a piston cylinder; 17. a piston; 18. and (3) filtering a cake.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a bio-engineering membrane separation and filtration apparatus comprises a main beam 1, foot rests 2 fixedly connected to both sides of the bottom end of the main beam 1, a thrust plate 3 fixedly connected to one end of the main beam 1, a filter plate 4 movably connected to one side of the thrust plate 3, a pressure plate 5 movably connected to one side of the filter plate 4, an air compressor 6 movably connected to one side of the pressure plate 5, pull plate chains 7 fixedly installed on both the front and back sides of the filter plate 4, the pull plate chains 7 sequentially connecting all the filter plates 4 and finally connected to the top end of the pressure plate 5, the length of the pull plate chain 7 when fully extended is identical to the length of the main beam 1, when the pull plate chains 7 are fully extended, the filter plates 4 are separated from each other and uniformly distributed on the main beam 1, a liquid inlet 8 is fixedly connected to the other side of the thrust plate 3, the liquid inlet 8 penetrates through the thrust plate 3 and all the filter plates 4, the suspension can be fed to each filter plate 4.
Referring to fig. 1, a three-way pipe is fixedly installed at one end of a liquid inlet 8, a liquid inlet pipe 13 is fixedly connected to the other end of the three-way pipe, a check valve 14 is fixedly installed in the middle of the liquid inlet pipe 13, a water baffle 9 is fixedly installed at the bottom end of a filter plate 4, a rotating shaft 10 is fixedly connected to the middle of the water baffle 9, a support shaft 11 is movably connected to the middle of the rotating shaft 10, and a slurry filtering collecting tank 12 is fixedly connected to the front side of the support shaft 11, wherein the filter plate 4 can move along the axis direction of a main beam 1, and when the pressing plate 5 pushes the filter plate 4 to be tightened left, the total length of the filter plate 4 is consistent with the length of the water baffle 9, so that the slurry flowing out of the filter plate 4 can all flow into the slurry filtering collecting tank 12.
The bottom end of the three-way pipe is fixedly connected with a shunt pipe 15, the bottom end of the shunt pipe 15 is fixedly connected with a piston barrel 16, a piston 17 is movably arranged in the piston barrel 16, a horizontal guide rail groove is arranged in the piston barrel 16, a convex groove corresponding to the piston 17 is arranged on the outer wall of the piston 17, the piston 17 can only move left and right along the horizontal direction without rotating, a threaded rod is fixedly connected to one side of the piston 17, a threaded groove corresponding to the piston is arranged in the inner part of one end of a rotating shaft 10, when a liquid inlet pipe 13 is filled with liquid, the piston 17 moves right under the action of liquid pressure to drive the rotating shaft 10 to rotate, the rotating shaft 10 is fixedly connected with a water baffle 9, the water baffle 9 is driven by the rotating shaft 10 to rotate around the axis of the rotating shaft 10, the water baffle 9 is in a state shown in figure 2, the filter pulp is guided to flow into a filter pulp collecting tank 12, when a suspension liquid is filled in a filter plate 4, the liquid inlet pipe 13 stops feeding, meanwhile, the aerostatic press 6 is started to pressurize suspension liquid in the filter plate 4, pressure acts on the suspension liquid until filter residues become filter cakes 18, the pressure in the filter plate 4 cannot be discharged through the one-way valve 14, but can be remained to the piston cylinder 16 through the liquid inlet 8, the pressure-actuated piston 17 is kept on the right side of the piston cylinder 16, when no filter pulp flows out from the bottom end of the filter plate 4, the filter pressing is completed, the aerostatic press 6 is not pressurized any more, the pressure in the piston cylinder 16 disappears, the water baffle 9 is in a sagging state under the action of self gravity under the state without external force, as shown in figure 3, the filter plate is separated under the pulling of the pull plate chain 7, and the filter cakes 18 are automatically discharged by the gravity and fall into the bottom of the water baffle 9.
The use method (working principle) of the invention is as follows:
when the filter pressing device is used, the pressing plate 5 presses the filter plates 4, suspension liquid flows in from the liquid inlet pipe 13, a part of the suspension liquid forms pressure on the piston 17 through the shunt pipe 15, the piston 17 is pushed to move rightwards, the rotating shaft 10 is driven to rotate, the water baffle 9 is in a state shown in figure 2, other suspension liquid enters between the filter plates 4 through the liquid inlet 8 and is filtered through filter cloth, the filter pulp flows downwards from the bottoms of the filter plates 4, the filter pulp is guided into the filter pulp collecting tank 12 through the water baffle 9, filter residues are remained in a cavity between the filter plates 4, the liquid inlet pipe 13 stops feeding the liquid after the filter residues are fully accumulated, the air compressor 6 starts to work to press the filter residues in the filter plates 4 into the filter cakes 18, at the moment, due to the high-pressure effect in the filter plates 4, the piston 17 is kept at the right end of the piston cylinder 16, the water baffle 9 is kept in a state shown in figure 2, the filter pulp pressed out in the filter plates 4 is continuously guided into the filter pulp collecting tank 12, after filter residues in the cavity between the filter plates 4 are pressed into filter cakes 18, the air compressor 6 stops working, the pressure in the piston cylinder 16 disappears, the water baffle 9 is restored to the state shown in the figure 3 under the action of the gravity of the water baffle, and the filter plates 4 are pulled to be separated through the pull plate chain 7, so that the filter cakes 18 in the cavity between the filter plates 4 automatically fall down to finish discharging.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a bioengineering membrane separation filtration equipment, includes girder (1), both sides fixedly connected with foot rest (2) of girder (1) bottom, the one end fixedly connected with thrust plate (3) of girder (1), one side swing joint of thrust plate (3) has filter (4), one side swing joint of filter (4) has pressure strip (5), one side swing joint of pressure strip (5) has aerostatic press (6), the equal fixed mounting in front and the back of filter (4) has arm-tie chain (7), arm-tie chain (7) connect gradually all filter (4), and finally be connected to the top of pressure strip (5), its characterized in that: the other side of the thrust plate (3) is fixedly connected with a liquid inlet (8), the liquid inlet (8) penetrates through the thrust plate (3) and all the filter plates (4) and can convey suspension liquid to each filter plate (4), the bottom end of each filter plate (4) is fixedly provided with a water baffle (9), the middle of each water baffle (9) is fixedly connected with a rotating shaft (10), the middle of each rotating shaft (10) is movably connected with a fulcrum shaft (11), the front side of each fulcrum shaft (11) is fixedly connected with a filtrate collecting tank (12), one end of each liquid inlet (8) is fixedly provided with a three-way pipe, the other end of each three-way pipe is fixedly connected with a liquid inlet pipe (13), the middle of each liquid inlet pipe (13) is fixedly provided with a one-way valve (14), the bottom end of each three-way pipe is fixedly connected with a shunt pipe (15), and the bottom end of each shunt pipe (15) is fixedly connected with a piston barrel (16), a piston (17) is movably arranged in the piston cylinder (16).
2. The bioengineering membrane separation filtration device of claim 1, wherein: the filter plate (4) can move along the axis direction of the main beam (1), and when the pressing plate (5) pushes the filter plate (4) leftwards to enable the filter plate to be close to the main beam, the total length of the filter plate (4) is consistent with that of the water baffle (9).
3. The bioengineering membrane separation filtration device of claim 1, wherein: the length of the pull plate chain (7) when the pull plate chain is fully extended is consistent with that of the main beam (1), and when the pull plate chain (7) is fully extended, the filter plates (4) are mutually separated and uniformly distributed on the main beam (1).
4. The bioengineering membrane separation filtration device of claim 1, wherein: the conduction direction of the one-way valve (14) is from left to right.
5. The bioengineering membrane separation filtration device of claim 1, wherein: the rotating shaft (10) is fixedly connected with the water baffle (9), the water baffle (9) can be driven by the rotating shaft (10) to rotate around the axis of the rotating shaft (10), and the rotatable range is zero to ninety degrees.
6. The bioengineering membrane separation filtration device of claim 1, wherein: one side of the piston (17) is fixedly connected with a threaded rod, and a thread groove corresponding to the threaded rod is formed in one end of the rotating shaft (10).
7. The bioengineering membrane separation filtration device of claim 1, wherein: the water baffle (9) is in a drooping filter cake opening state under the action of self gravity under the state of no external force.
8. The bioengineering membrane separation filtration device of claim 1, wherein: the piston cylinder (16) is internally provided with a horizontal guide rail groove, and the outer wall of the piston (17) is provided with a corresponding protruding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010988691.6A CN112190989B (en) | 2020-09-18 | 2020-09-18 | Bioengineering membrane separation filtration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010988691.6A CN112190989B (en) | 2020-09-18 | 2020-09-18 | Bioengineering membrane separation filtration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112190989A CN112190989A (en) | 2021-01-08 |
| CN112190989B true CN112190989B (en) | 2022-04-29 |
Family
ID=74015650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010988691.6A Active CN112190989B (en) | 2020-09-18 | 2020-09-18 | Bioengineering membrane separation filtration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112190989B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2786709A1 (en) * | 1998-12-03 | 2000-06-09 | Ms Dev Et Participation Sa | Filter press has plates connected to each other by motor device with pneumatic cushion |
| CN203499787U (en) * | 2013-09-30 | 2014-03-26 | 三峡大学 | Underwater power supercharging and air exhausting device preventing water from flowing backward |
| CN203634891U (en) * | 2013-12-13 | 2014-06-11 | 济南诺能生物工程有限公司 | Plate-and-frame filter |
| CN208003517U (en) * | 2017-12-29 | 2018-10-26 | 天津远新环保科技有限公司 | It is a kind of to carry the filter press for connecing liquid turnover panel |
| CN111001202A (en) * | 2020-01-17 | 2020-04-14 | 河南久鼎过滤设备有限公司 | Water flushing diaphragm filter press |
| CN210385055U (en) * | 2019-07-30 | 2020-04-24 | 民勤县巴腾生物有机肥料有限公司 | Filter pressing device for dehydration of livestock and poultry manure |
| CN211474927U (en) * | 2019-09-23 | 2020-09-11 | 王利楠 | Automatic control valve for agricultural irrigation of hydraulic engineering |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190606363A (en) * | 1906-03-16 | 1906-08-09 | Martin Ekenberg | Improvements in or relating to Filter Presses. |
| CN104832466B (en) * | 2014-12-12 | 2016-09-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of variable area specific pressure multiplying assembly and control method |
| CN211024326U (en) * | 2019-05-09 | 2020-07-17 | 西安宇威水处理有限公司 | Negative pressure suction device |
| CN110093970B (en) * | 2019-06-05 | 2021-08-03 | 南京溧水高新产业股权投资有限公司 | Automatic sewer processing apparatus who changes |
| CN111501678B (en) * | 2020-04-24 | 2021-07-13 | 湖州海明机械科技有限公司 | Ecological corridor cuts dirty system |
-
2020
- 2020-09-18 CN CN202010988691.6A patent/CN112190989B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2786709A1 (en) * | 1998-12-03 | 2000-06-09 | Ms Dev Et Participation Sa | Filter press has plates connected to each other by motor device with pneumatic cushion |
| CN203499787U (en) * | 2013-09-30 | 2014-03-26 | 三峡大学 | Underwater power supercharging and air exhausting device preventing water from flowing backward |
| CN203634891U (en) * | 2013-12-13 | 2014-06-11 | 济南诺能生物工程有限公司 | Plate-and-frame filter |
| CN208003517U (en) * | 2017-12-29 | 2018-10-26 | 天津远新环保科技有限公司 | It is a kind of to carry the filter press for connecing liquid turnover panel |
| CN210385055U (en) * | 2019-07-30 | 2020-04-24 | 民勤县巴腾生物有机肥料有限公司 | Filter pressing device for dehydration of livestock and poultry manure |
| CN211474927U (en) * | 2019-09-23 | 2020-09-11 | 王利楠 | Automatic control valve for agricultural irrigation of hydraulic engineering |
| CN111001202A (en) * | 2020-01-17 | 2020-04-14 | 河南久鼎过滤设备有限公司 | Water flushing diaphragm filter press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112190989A (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019228166A1 (en) | Automatic high-pressure filter press, and filter pressing, residue discharging and back washing method therefor | |
| CN207012625U (en) | A kind of plate and frame filter press | |
| CN112190989B (en) | Bioengineering membrane separation filtration equipment | |
| CN116519235B (en) | Water heater relief valve and gas tightness check out test set thereof | |
| CN211836522U (en) | Novel filter cloth rapid cleaning device of filter press | |
| CN106512499A (en) | Sheet frame type filter press | |
| CN216703460U (en) | High-pressure diaphragm filter press | |
| CN214260840U (en) | Industrial sewage filtering device | |
| CN204952390U (en) | Automatic plate filtration machine of backwash | |
| CN212523164U (en) | Wind-assisted cake discharging device of automatic diaphragm filter press and corresponding wind-assisted cake discharging type pulling plate mechanism | |
| CN208406202U (en) | Automatic high pressure filter press | |
| CN201482268U (en) | Vertical filter press | |
| CN210645290U (en) | Filter press for sewage treatment process | |
| CN212994232U (en) | Automatic efficient cleaning and desalting device for olive vegetables | |
| CN208287573U (en) | A kind of single cylinder structure filter press | |
| CN111905420A (en) | Domestic sewage treatment equipment | |
| CN2351269Y (en) | Hydraulic locking pressing multifunction plate frame press filter | |
| CN206483208U (en) | A kind of tower filter press | |
| CN220609242U (en) | Hydraulic automatic plate-and-frame filter press | |
| CN220715026U (en) | Honey impurity filter vat | |
| CN216369185U (en) | High-efficiency energy-saving quick filter press | |
| CN116492729B (en) | Plate-frame type high-efficiency separation filter press system | |
| CN221045532U (en) | Filter cake collecting device | |
| CN213853258U (en) | A filter pressing device for in titanium white powder production process | |
| CN217526497U (en) | Crude indigo filter pressing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220408 Address after: 276000 300 meters north of the intersection of Liugong road and Xiangyu Road, meibu street, economic development zone, Linyi City, Shandong Province Applicant after: Linyi aoguangyuanda Biotechnology Co.,Ltd. Address before: Room 1702, No.1, Hanlan Third Street, Panyu District, Guangzhou City, Guangdong Province, 510000 Applicant before: Duan Bin |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |