CN209668921U - A kind of biology desilting basin - Google Patents
A kind of biology desilting basin Download PDFInfo
- Publication number
- CN209668921U CN209668921U CN201920205026.8U CN201920205026U CN209668921U CN 209668921 U CN209668921 U CN 209668921U CN 201920205026 U CN201920205026 U CN 201920205026U CN 209668921 U CN209668921 U CN 209668921U
- Authority
- CN
- China
- Prior art keywords
- strainer
- sedimentation basin
- filtering ponds
- water
- basin
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 238000005273 aeration Methods 0.000 claims abstract description 37
- 238000004062 sedimentation Methods 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000010865 sewage Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 15
- 230000001376 precipitating effect Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009300 dissolved air flotation Methods 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model belongs to the technical field of sewage disposal device, it is intended to provide a kind of biological desilting basin, its key points of the technical solution are that including aeration tank, the side of aeration tank is provided with water purifying tank, the filtering ponds that water purifying tank includes sedimentation basin, is connected to sedimentation basin, sedimentation basin and filtering ponds are separated by partition, overflow hole is offered on partition, drainage pipeline extends in sedimentation basin, dismantling connection has strainer in filtering ponds, strainer is set as dipping down ramp-like far from one end of sedimentation basin, and strainer is set as hanging shape far from one end of sedimentation basin；Sewage is carried out Air Exposure by aeration tank by this biology desilting basin, recycle sedimentation basin that the sewage after aeration is made to carry out preliminary precipitating, the top lease making for precipitating water, which is crossed overflow and flow on strainer, to be filtered, and filtered water is able to maintain cleaning, free from foreign meter, filter effect is good.
Description
Technical field
The utility model relates to field, in particular to a kind of biological desilting basin.
Background technique
Biological filter process is the method for carrying out biological oxidation processing to sewage or organic wastewater using aerobe.With
Stone, coke, slag or artificial filter lining etc. quench as first packing course, is then sprayed at sewage above with a drop-wise, and be sufficiently fed
Oxygen and nutrition generate layer of gel shape biomembrane (bacterium class, protozoan, algae, mattress class etc.) in surface of filter medium at this time, when
When sewage is flowed down along this film, solubility, colloidality and suspension substance in sewage are adsorbed on biomembrane and are nitrogenized by microorganism
It decomposes.
In the prior art, biological aerated filter is common method in handle sewage one, biological aerated filter and common
Activated sludge process is compared, and there is organic loading height, occupied area small (being the 1/3 of conventional activated sludge process), small investment (to save
30%) sludge bulking will not, be generated, the advantages that oxygen efficiency of transmission is high, effluent quality is good.As shown in Figure 1, existing aeration and biological
Filter tank, including aeration well, the aeration tube being arranged in aeration well, the water pump being arranged in aeration well, the draining being connected to water pump
Pipeline, the filter tank that aeration well side is arranged in, the strainer with filter tank dismantling connection will be discharged into aeration well by pretreated waste water
In, dissolved oxygen is discharged into aeration well by aeration tube, oxygen is in contact with the impurity in waste water, prevents under the suspended matter in pond
It is heavy, reinforce organic matter in pond and contacted with microorganism and dissolved oxygen, makes microorganism under conditions of sufficient dissolved oxygen, in sewage
Organic matter carry out oxygenolysis, reduce the content of organics in sewage, achieve the effect that purification, will be through overexposure by water pump
The water of gas is discharged into filter tank, makes sewage through filter screen, and filtered water can be reused.
Although above-mentioned technical proposal can be handled the organic matter in waste water by aeration, waste water is through overexposure
It is directly entered in filter tank after gas, for a large amount of water through filter screen, the effect of filtering is undesirable, and may will be trapped on strainer
Impurity impact in filter tank, cause by processing after water in also contain impurity, filter effect is bad.
Utility model content
The utility model is to provide a kind of biological desilting basin, good with filter effect, without miscellaneous in filtered water
The advantages of matter.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of biology desilting basin biology desilting basin, including aeration tank are provided with airfloat equipment, the exposure in the aeration tank
The side in gas pond is provided with water purifying tank, and the aeration bottom of pond portion is provided with water pump, drainage pipeline is communicated on the water pump, described
The filtering ponds that water purifying tank includes sedimentation basin, is connected to sedimentation basin, the sedimentation basin and filtering ponds are separated by partition, it is described every
Overflow hole is offered on plate, the drainage pipeline extends in sedimentation basin, and dismantling connection has strainer in the filtering ponds.
By using above-mentioned technical proposal, sewage is discharged into aeration tank, by airfloat equipment by the mixing of air and water
Liquid is by the bottom of pond of aeration tank, and the solid suspension formed during industrial wastewater and sanitary sewage disposal is mixed in air and water
It closing in liquid under the adhesive attraction of bubble, apparent gravity reduces, and suspended matter floats to form dross exclusion, and clear water is discharged by lower part, thus
Good cleaning effect can be played to the suspended matter in sewage, the water after aeration is discharged into sedimentation basin by water pump, water
In impurity can carry out certain precipitating in precipitating, more clear water is slowly entered in filtering ponds by overflow hole, water warp
Cross strainer in filtering ponds, can in water impurity and suspended matter retained and filtered, make water flow into filtering ponds in
When can be cleaner, water enables strainer adequately to act on water by way of overflow, and the effect of filtering is more preferable.
Further setting: the strainer is set as dipping down ramp-like far from one end of sedimentation basin.
By using above-mentioned technical proposal, the ramp-like setting that dips down can be such that water flows along the inclined-plane of strainer, therefore
Water will not rest on one end of strainer, make the flowing that water is more uniform in strainer upper end, can fill when uniform flowing
Divided the impurity and suspended matter in drainage, and kept the effect of filtering more preferable.
Further setting: the strainer is set as hanging shape far from one end of sedimentation basin.
By using above-mentioned technical proposal, the setting of hanging shape is mutually separated strainer with filtered water purification, strainer upper end
A large amount of impurity can be detained, prevent the impurity of strainer upper end from impregnating the state for making filtered water keep clean in water.
Further setting: the top of strainer is arranged in the overflow hole, and the overflow hole is provided with equally distributed multiple.
By using above-mentioned technical proposal, the water after aeration flow to the upper end of strainer by overflow hole, uniformly distributed
Setting enables water to uniformly be in contact with strainer, prevents the filtration distribution portion of strainer uniform, strainer can be guaranteed to water
Uniform filtering, to guarantee the effect of filtering.
Further setting: the strainer includes that fixed plate, the filter net cloth being fixedly connected with fixed plate and filter net cloth paste
The sponge sheet of conjunction, the active carbon cotton piece being bonded with sponge sheet.
By using above-mentioned technical proposal, filter net cloth, sponge sheet and active carbon cotton piece are fixedly connected in fixed plate, energy
It is enough sufficiently in water impurity and suspended matter be filtered, guarantee the cleaning of water.
Further setting: the side wall of the filtering ponds is fixedly connected with erecting bed, and sliding plug is led on the erecting bed
Draw column, offer guide channel on the strainer, the guide channel and guide posts match setting.
By using above-mentioned technical proposal, the fixed plate in strainer can be placed on erecting bed upper end, and guide posts can be with
Fixed plate guide channel matches, to be not in the phenomenon that sliding fold, to filter when strainer is placed on erecting bed
Net can play more preferable more steady filter effect to water.
Further setting: the filtering ponds upper end is fixedly connected with motor, and the output end of the motor is fixedly connected with spiral shell
Bar slidably connects connecting plate in the filtering ponds, and the screw flight is plugged in connecting plate, and the guide posts are fixedly connected
There is connecting plate upper end.
By using above-mentioned technical proposal, electric motor starting drives screw rod rotation, and screw acting is mobile in connecting plate, connecting plate
Drive guide posts mobile, during strainer dismounting and change, guide posts can be moved to the lower section of erecting bed, when strainer and peace
When dress platform matches, starting motor drives guide posts to match with guide channel, facilitates installation.
Further setting: the side wall of the filtering ponds is communicated with moisturizing pipeline, the water outlet and aeration of the moisturizing pipeline
Pond connection.
By using above-mentioned technical proposal, the setting of moisturizing pipeline can be when the wastewater level in aeration tank declines
Moisturizing is carried out, keeps the sewage in aeration tank more and more limpider, guarantees treatment effect and treatment effeciency.
In conclusion the utility model has the following beneficial effects:
1, the water after aeration is discharged into sedimentation basin by water pump, and the impurity in water can carry out certain sink in precipitating
It forms sediment, more clear water is slowly entered in filtering ponds by overflow hole, and water, can be to the impurity in water by strainer in filtering ponds
And suspended matter is retained and is filtered；
2, the strainer ramp-like setting that dips down can be such that water flows along the inclined-plane of strainer, therefore water will not rest on strainer
One end, make the flowing that water is more uniform in strainer upper end, being capable of the abundant impurity crossed in drainage when uniform flowing
And suspended matter, keep the effect of filtering more preferable；
3, the setting of strainer hanging shape is mutually separated strainer with filtered water purification, and strainer upper end can be detained a large amount of impurity,
Prevent the impurity of strainer upper end from impregnating the state for making filtered water keep clean in water；
4, during strainer dismounting and change, guide posts can be moved to the lower section of erecting bed, when strainer and erecting bed
When matching, starting motor drives guide posts to match with guide channel, facilitates installation.
Detailed description of the invention
Fig. 1 is the overall structure diagram for embodying biological desilting basin；
Fig. 2 is the schematic diagram of internal structure for embodying biological desilting basin；
Fig. 3 is the concrete structure schematic diagram for embodying strainer.
In figure, 1, aeration tank；2, airfloat equipment；3, water purifying tank；31, sedimentation basin；32, filtering ponds；4, water pump；5, drainpipe
Road；6, partition；7, overflow hole；8, strainer；81, fixed plate；82, filter net cloth；83, sponge sheet；84, active carbon cotton piece；9, pacify
Fill platform；10, guide posts；11, guide channel；12, motor；13, screw rod；14, connecting plate；15, moisturizing pipeline.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment: a kind of biology desilting basin, including aeration tank 1, as shown in Figure 1, airfloat equipment 2 is provided in aeration tank 1,
It is related to pressurized dissolved air flotation method, pressurized dissolved air flotation is that one kind is widely used in industrial wastewater and urban sewage treatment admittedly
The method of liquid separation can remove suspended matter in water, oils, algae and each metal ion species hydroxo complex, sulfide etc., with
Reduce the COD and biochemical oxygen demand (BOD) in waste water, conservation of nature environment.During industrial wastewater and sanitary sewage disposal
The solid suspension of formation, under the adhesive attraction for a large amount of intensive microbubbles that air dissolving system is formed, apparent gravity reduces, and suspends
Object floats to form dross exclusion, and clear water is discharged by lower part.Its processing system includes water inlet, hybrid reaction, separation of solid and liquid, clear water storage
It deposits, be discharged, it is necessary to equipped with the air dissolving system and automatic control timing sludge drainage system etc. for including dissolved air water pump, container tank.It will be dirty
Water is discharged into aeration tank 1, starts airfloat equipment 2, and the suspended matter and impurity for acting on molten water sufficiently in sewage make on impurity
It is floating, play the effect of sewage treatment.
As shown in Fig. 2, the side of aeration tank 1 is provided with water purifying tank 3,1 bottom of aeration tank is provided with water pump 4, connects on water pump 4
It is connected with drainage pipeline 5, the filtering ponds 32 that water purifying tank 3 includes sedimentation basin 31, is connected to sedimentation basin 31, sedimentation basin 31 and filtering ponds 32
It is separated by partition 6, entering sedimentation basin 31 into the water crossed after being aerated can first be precipitated, and impurity is trapped in 31 bottom of sedimentation basin
Portion, offers overflow hole 7 on partition 6, and overflow hole 7 is provided with equally distributed multiple, and the clear water of 31 upper end of sedimentation basin is by overflowing
Discharge orifice 7, which enters in filtering ponds 32, to be filtered, and drainage pipeline 5 extends in sedimentation basin 31, and dismantling connection has filter in filtering ponds 32
Net 8, overflow hole 7 are arranged in the top of strainer 8, and strainer 8 is set as dipping down ramp-like far from one end of sedimentation basin 31, and strainer 8 is remote
One end from sedimentation basin 31 is set as hanging shape, and the skewed efficiency that can be improved filtering with hanging shape setting makes to filter
Effect is more preferable.
As shown in Fig. 2, the side wall of filtering ponds 32 is fixedly connected with erecting bed 9, sliding plug has guide posts on erecting bed 9
10, offer guide channel 11 on strainer 8, guide channel 11 and guide posts 10 match setting, and 32 upper end of filtering ponds is fixedly connected with
Motor 12, the output end of motor 12 are fixedly connected with screw rod 13, and connecting plate 14,13 screw thread of screw rod are slidably connected in filtering ponds 32
It is plugged in connecting plate 14, guide posts 10 are fixedly connected with 14 upper end of connecting plate, and the side wall of filtering ponds 32 is communicated with moisturizing pipeline
15, the water outlet of moisturizing pipeline 15 is connected to aeration tank 1.
As shown in figure 3, filter net cloth 82 and filter net cloth that strainer 8 includes fixed plate 81, is fixedly connected with fixed plate 81
The sponge sheet 83 of 82 fittings, the active carbon cotton piece 84 being bonded with sponge sheet 83, three layers of setting can will contain impurity and suspension
The water of object is adequately filtered, and keeps filter cleaning effect more preferable.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of biology desilting basin, including aeration tank (1), the aeration tank (1) is interior to be provided with airfloat equipment (2), the aeration
The side in pond (1) is provided with water purifying tank (3), and aeration tank (1) bottom is provided with water pump (4), is communicated on the water pump (4)
Drainage pipeline (5), it is characterised in that: the water purifying tank (3) includes sedimentation basin (31), the filtering ponds that are connected to sedimentation basin (31)
(32), the sedimentation basin (31) is separated with filtering ponds (32) by partition (6), offers overflow hole on the partition (6)
(7), the drainage pipeline (5) extends in sedimentation basin (31), and dismantling connection has strainer (8) in the filtering ponds (32).
2. a kind of biological desilting basin according to claim 1, it is characterised in that: the strainer (8) is far from sedimentation basin (31)
One end be set as dipping down it is ramp-like.
3. a kind of biological desilting basin according to claim 2, it is characterised in that: the strainer (8) is far from sedimentation basin (31)
One end be set as hanging shape.
4. a kind of biological desilting basin according to claim 1, it is characterised in that: the overflow hole (7) is arranged in strainer (8)
Top, the overflow hole (7) is provided with equally distributed multiple.
5. a kind of biological desilting basin according to claim 1, it is characterised in that: the strainer (8) include fixed plate (81),
The filter net cloth (82) being fixedly connected with fixed plate (81), the sponge sheet (83) and sponge sheet that are bonded with filter net cloth (82)
(83) the active carbon cotton piece (84) being bonded.
6. a kind of biological desilting basin according to claim 1, it is characterised in that: the side wall of the filtering ponds (32) is fixed to be connected
It is connected to erecting bed (9), there is guide posts (10) sliding plug on the erecting bed (9), offer guide channel on the strainer (8)
(11), the guide channel (11) and guide posts (10) match setting.
7. a kind of biological desilting basin according to claim 6, it is characterised in that: filtering ponds (32) upper end is fixedly connected
Have motor (12), the output end of the motor (12) is fixedly connected with screw rod (13), is slidably connected in the filtering ponds (32)
Connecting plate (14), screw rod (13) screw thread are plugged in connecting plate (14), and the guide posts (10) are fixedly connected with connecting plate
(14) upper end.
8. a kind of biological desilting basin according to claim 1, it is characterised in that: the side wall of the filtering ponds (32) is communicated with
The water outlet of moisturizing pipeline (15), the moisturizing pipeline (15) is connected to aeration tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205026.8U CN209668921U (en) | 2019-02-15 | 2019-02-15 | A kind of biology desilting basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205026.8U CN209668921U (en) | 2019-02-15 | 2019-02-15 | A kind of biology desilting basin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209668921U true CN209668921U (en) | 2019-11-22 |
Family
ID=68568898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920205026.8U Active CN209668921U (en) | 2019-02-15 | 2019-02-15 | A kind of biology desilting basin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209668921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760374A (en) * | 2020-07-02 | 2020-10-13 | 国网宁夏电力有限公司电力科学研究院 | Transformer accident oil pool system |
| CN111760331A (en) * | 2020-07-02 | 2020-10-13 | 国网宁夏电力有限公司电力科学研究院 | Transformer accident pool oil-water separation device |
-
2019
- 2019-02-15 CN CN201920205026.8U patent/CN209668921U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760374A (en) * | 2020-07-02 | 2020-10-13 | 国网宁夏电力有限公司电力科学研究院 | Transformer accident oil pool system |
| CN111760331A (en) * | 2020-07-02 | 2020-10-13 | 国网宁夏电力有限公司电力科学研究院 | Transformer accident pool oil-water separation device |
| CN111760331B (en) * | 2020-07-02 | 2025-03-18 | 国网宁夏电力有限公司电力科学研究院 | Transformer accident pool oil-water separation device |
| CN111760374B (en) * | 2020-07-02 | 2025-03-18 | 国网宁夏电力有限公司电力科学研究院 | Transformer emergency oil pool system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207958075U (en) | A kind of water paint waste water treatment system | |
| CN101205109B (en) | Apparatus for treating chemical fiber waste water by anaerobic method | |
| CN202529925U (en) | Air-flotation filtering integrated processing device | |
| CN105693014A (en) | Sewage treatment system and sewage treatment method | |
| CN109626749A (en) | Multifunctional integral sewage processor and its treatment process | |
| CN205635294U (en) | A processing system for handling high concentration polyurethane synthetic leather waste water | |
| CN208471841U (en) | A kind of purification device used for lavatory recirculated water | |
| CN209668921U (en) | A kind of biology desilting basin | |
| KR101037888B1 (en) | Sedimentation, Biological Decomposition, Filtration, Phosphorus Removal, UV Disinfection | |
| CN2503065Y (en) | Integrated domestic sewage advanced treatment purifier | |
| JP3469797B2 (en) | Sewage treatment method and apparatus | |
| CN201154935Y (en) | Chemical fabrics waste water treatment plant | |
| CN209685518U (en) | Multifunctional integral sewage processor | |
| CN217516812U (en) | Energy-efficient sewage treatment system | |
| CN205528260U (en) | Sewage treatment system | |
| CN206396000U (en) | Aquaculture wastewater processing system | |
| RU156535U1 (en) | DEVICE FOR CLEANING WATER WASTE WATER | |
| CN204198551U (en) | The aerobic sewerage disposing equipment of a kind of intensive MBBR | |
| CN106380047A (en) | Water purification system for pigpen | |
| RU94568U1 (en) | COMPLETE BLOCK MODULAR CLEANING PLANT OF FACTORY MANUFACTURE | |
| JPH03188993A (en) | Sewage treating device | |
| JP2006289153A (en) | Method of cleaning sewage and apparatus thereof | |
| CN207158820U (en) | Chemical Manufacture reactant mixture decontaminates purifying box | |
| RU155237U1 (en) | DEVICE FOR CLEANING WATER WASTE WATER | |
| CN221440556U (en) | Treatment and reuse equipment for train cleaning wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |