CN211595295U - Industrial wastewater treatment equipment - Google Patents
Industrial wastewater treatment equipment Download PDFInfo
- Publication number
- CN211595295U CN211595295U CN202020088548.7U CN202020088548U CN211595295U CN 211595295 U CN211595295 U CN 211595295U CN 202020088548 U CN202020088548 U CN 202020088548U CN 211595295 U CN211595295 U CN 211595295U
- Authority
- CN
- China
- Prior art keywords
- tank
- water
- water pump
- water pipe
- filter screen
- 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
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 19
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000004062 sedimentation Methods 0.000 claims abstract description 40
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 238000011084 recovery Methods 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 239000003814 drug Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 13
- 239000002351 wastewater Substances 0.000 abstract description 41
- 238000001556 precipitation Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses an industrial wastewater treatment equipment, comprising a base plate, one side of bottom plate is equipped with the recovery pond, the fixed sedimentation tank that is equipped with in one side of recovery pond, one side of sedimentation tank is located be equipped with the reaction tank on the recovery pond, one side of reaction tank is located be equipped with the filtering ponds on the recovery pond, the inside of sedimentation tank is equipped with first precipitation storehouse, the top of sedimentation tank is equipped with first water pump, the one end of first water pump is equipped with first water pipe, the one end and the sedimentation tank intercommunication of first water pipe, first water pump is kept away from the one end of first water pipe pass through the second water pipe with the reaction tank is connected, the inside of reaction tank is equipped with agitating unit, agitating unit includes the (mixing) shaft, the fixed a plurality of stirring leaves that are equipped with on the (mixing) shaft, the one end of (mixing) shaft is connected with the output of motor. Has the advantages that: the device simple structure, convenient operation is used, has increased the recycle of waste water, has improved the emission standard of waste water simultaneously.
Description
Technical Field
The utility model relates to an industrial wastewater treatment field particularly, relates to an industrial wastewater treatment equipment.
Background
Industrial waste water refers to waste water and waste liquid discharged from a process, which contains industrial production materials, intermediate products, byproducts and pollutants generated in the production process and lost with water, and is an important cause of environmental pollution, particularly water pollution.
Traditional effluent treatment plant is too simple, and the function is few, can not satisfy the demand of most of mills, causes serious influence to the environment, and effluent treatment plant only carries out simple filtration treatment to it in addition and discharges, and the waste water after discharging can not carry out recycle, will cause the waste of water resource, so it is necessary to provide an industrial wastewater treatment equipment to solve the problem that exists more than.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an industrial wastewater treatment equipment to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an industrial wastewater treatment device comprises a bottom plate, wherein a recovery tank is arranged on one side of the bottom plate, a sedimentation tank is fixedly arranged on one side of the recovery tank, a reaction tank is arranged on one side of the sedimentation tank, a filtering tank is arranged on one side of the reaction tank, a first sedimentation chamber is arranged inside the sedimentation tank, a first water pump is arranged above the sedimentation tank, a first water pipe is arranged at one end of the first water pump, one end of the first water pipe is communicated with the sedimentation tank, one end of the first water pump, which is far away from the first water pipe, is connected with the reaction tank through a second water pipe, a stirring device is arranged inside the reaction tank, the stirring device comprises a stirring shaft, a plurality of stirring blades are fixedly arranged on the stirring shaft, one end of the stirring shaft is connected with the output end of a motor, a support plate is fixedly arranged on one side of the reaction tank, the motor is located in the backup pad, one side of backup pad is equipped with into medicine mouth, the bottom of reaction tank is equipped with the second and deposits the storehouse, one side of reaction tank is equipped with the third water pipe, the one end of third water pipe is equipped with the second water pump, the other end of second water pump is equipped with the fourth water pipe, the fourth water pipe with the filtering ponds are linked together, the inside of filtering ponds is equipped with filter equipment, filter equipment includes first filter screen, the below of first filter screen is equipped with the second filter screen, the second filter screen is kept away from the fixed active carbon adsorption plate that is equipped with in one side of first filter screen.
Furthermore, the bottom of the filter tank is communicated with the top of the recovery tank through a communicating pipe.
Further, one side of filtering ponds is equipped with the device that opens and shuts, the device that opens and shuts includes the slag notch, be equipped with the closing plate on the slag notch, the one end of closing plate through connect the hinge with the filtering ponds are connected, the closing plate is kept away from the one end of connecting the hinge is equipped with fixing device.
Furthermore, the fixing device comprises a convex block, one end of the convex block is fixedly connected with the sealing plate, and the convex block is in threaded connection with the filtering tank through a locking bolt.
Furthermore, a water outlet pipe is arranged on one side of the bottom of the recovery tank, and a control valve is arranged on the water outlet pipe.
Further, first filter screen, second filter screen with the one end of active carbon adsorption plate all with one side inner wall fixed connection of filtering ponds, first filter screen, second filter screen with active carbon adsorption plate has 30 contained angles with the horizontal direction.
Furthermore, a placing plate is arranged on one side of each of the first water pump and the second water pump, and one end of each placing plate is fixedly connected with the reaction tank and the filtering tank.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) firstly, pouring the wastewater into a sedimentation tank for standing sedimentation, wherein larger impurity substances in the wastewater are precipitated in a stationary state and fall into a first sedimentation bin, the wastewater in the upper layer of the sedimentation tank is taken into a reaction tank through a first water pump, the wastewater enters the reaction tank, a motor is started, a medicament for sedimentation is added into the reaction tank through a medicament inlet, the medicament and the wastewater are mixed through stirring, the impurities in the wastewater are precipitated again, the wastewater is subjected to standing sedimentation after stirring, the precipitated impurities fall into a second sedimentation bin, the process of collecting the precipitates is realized, the wastewater in the upper layer of the reaction tank is taken into a filter tank through a second water pump after standing sedimentation, the filter device can filter the impurities, an activated carbon adsorption plate can remove harmful substances in the water, and the purity of the water is increased, the device has the advantages that the recycling of the waste water can be realized, the discharge standard of the waste water is improved, the device is simple in structure and convenient to operate and use, the recycling of the waste water is increased, and the discharge standard of the waste water is improved;
(2) the communicating pipe is convenient for the filtered water to flow into the recovery tank, so that the collection convenience is improved;
(3) the opening and closing device is convenient for opening the slag hole to discharge the waste slag at the filtering position, so that the convenience in use is increased, the waste slag is convenient to clean, and the convenience in cleaning is greatly increased;
(4) fixing device can play fixed effect to the closing plate, increases the closing plate and is carrying out the effect that the sealed start is firm to the slag notch, great increase the security of using.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an industrial wastewater treatment apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a reaction tank in an industrial wastewater treatment facility according to an embodiment of the present invention.
Reference numerals:
1. a recovery tank; 2. a sedimentation tank; 3. a reaction tank; 4. a filtration tank; 5. a first settling bin; 6. a first water pump; 7. a first water pipe; 8. a second water pipe; 9. a stirring shaft; 10. stirring blades; 11. a motor; 12. a support plate; 13. a medicine inlet; 14. a second settling bin; 15. a third water pipe; 16. a second water pump; 17. a fourth water pipe; 18. a first filter screen; 19. a second filter screen; 20. an activated carbon adsorption plate; 21. a communicating pipe; 22. a slag outlet; 23. a sealing plate; 24. locking the bolt; 25. and (5) discharging a water pipe.
Detailed Description
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
the first embodiment is as follows:
referring to fig. 1-2, an industrial wastewater treatment apparatus according to an embodiment of the present invention includes a bottom plate, a recovery tank 1 is disposed on one side of the bottom plate, a sedimentation tank 2 is fixedly disposed on one side of the recovery tank 1, a reaction tank 3 is disposed on the recovery tank 1 on one side of the sedimentation tank 2, a filtration tank 4 is disposed on the recovery tank 1 on one side of the reaction tank 3, a first sedimentation bin 5 is disposed inside the sedimentation tank 2, a first water pump 6 is disposed above the sedimentation tank 2, a first water pipe 7 is disposed at one end of the first water pump 6, one end of the first water pipe 7 is communicated with the sedimentation tank 2, one end of the first water pump 6, which is far away from the first water pipe 7, is connected with the reaction tank 3 through a second water pipe 8, a stirring device is disposed inside the reaction tank 3, the stirring device includes a stirring shaft 9, and a plurality of stirring blades 10 are fixedly disposed on the stirring shaft 9, one end of the stirring shaft 9 is connected with an output end of a motor 11, a supporting plate 12 is fixedly arranged on one side of the reaction tank 3, the motor 11 is arranged on the supporting plate 12, a medicine inlet 13 is arranged on one side of the supporting plate 12, a second settling bin 14 is arranged at the bottom of the reaction tank 3, a third water pipe 15 is arranged on one side of the reaction tank 3, a second water pump 16 is arranged at one end of the third water pipe 15, a fourth water pipe 17 is arranged at the other end of the second water pump 16, the fourth water pipe 17 is communicated with the filtering tank 4, a filtering device is arranged inside the filtering tank 4, the filtering device comprises a first filtering net 18, a second filtering net 19 is arranged below the first filtering net 18, an activated carbon adsorption plate 20 is fixedly arranged on one side, far away from the first filtering net 18, of the second filtering net 19, wastewater is poured into the settling tank 2 for settling, the larger impurity substances in the wastewater can be precipitated in a static state and fall into a first precipitation bin 5, the wastewater in the upper layer of the precipitation pool 2 is taken into a reaction pool 3 through a first water pump 6, the wastewater enters the reaction pool 3, a motor 11 is started, a medicament for precipitation is added into the reaction pool through a medicament inlet 13, the medicament and the wastewater can be mixed through stirring, the impurities in the wastewater can be precipitated again, the wastewater is subjected to standing precipitation after stirring, the precipitated impurities can fall into a second precipitation bin 14, the process of collecting precipitates is realized, the wastewater in the upper layer of the reaction pool 3 after the standing precipitation is taken into a filter tank 4 through a second water pump 16, the filter device can filter the impurities, an active carbon adsorption plate 20 can remove the harmful substances in the water, the purity of the water is increased, and the recycling of the wastewater can be realized, meanwhile, the device improves the discharge standard of the waste water, has a simple structure, is convenient to operate and use, increases the recycling of the waste water, and simultaneously improves the discharge standard of the waste water.
Example two:
referring to fig. 1-2, for the filtering tank 4, the bottom of the filtering tank 4 is communicated with the top of the recovery tank 1 through a communicating pipe 21, the communicating pipe 21 facilitates the filtered water to flow into the recovery tank 1, and the convenience of collection is increased; for the opening and closing device, an opening and closing device is arranged on one side of the filtering tank 4 and comprises a slag hole 22, a sealing plate 23 is arranged on the slag hole 22, one end of the sealing plate 23 is connected with the filtering tank 4 through a connecting hinge, a fixing device is arranged at one end, away from the connecting hinge, of the sealing plate 23, the opening and closing device is convenient for opening the slag hole 22 to discharge waste residues at the filtering position, the use convenience is improved, meanwhile, the waste residues are convenient to clean, and the cleaning convenience is greatly improved; for the fixing device, the fixing device comprises a convex block, one end of the convex block is fixedly connected with the sealing plate 23, the convex block is in threaded connection with the filtering tank 4 through a locking bolt 24, the fixing device can fix the sealing plate 23, the sealing plate 23 can be used for stably starting the slag outlet 22 in a sealing manner, and the use safety is greatly improved; for the recovery tank 1, a water outlet pipe 25 is arranged on one side of the bottom of the recovery tank 1, a control valve is arranged on the water outlet pipe 25, the water outlet pipe 25 is convenient for discharging recovered water, and the use convenience is improved; for the first filter screen 18, one end of each of the first filter screen 18, the second filter screen 19 and the activated carbon adsorption plate 20 is fixedly connected with the inner wall of one side of the filter tank 4, an included angle of 30 degrees exists between the first filter screen 18, the second filter screen 19 and the activated carbon adsorption plate 20 and the horizontal direction, the first filter screen 18, the second filter screen 19 and the activated carbon adsorption plate 20 are fixedly connected with one side of the inner wall of the filter tank, the placing stability can be increased, and meanwhile, an included angle of 30 degrees is formed between the first filter screen 18 and the horizontal direction, so that the impurities obtained by filtering can conveniently slide down; for the first water pump 6, one side of the first water pump 6 and one side of the second water pump 16 are both provided with a placing plate, one end of the placing plate is fixedly connected with the reaction tank 3 and the filter tank 4, the placing plate can support the first water pump and the second water pump, the first water pump and the second water pump are prevented from being placed in a suspended mode, and the use safety is greatly improved.
To sum up, with the aid of the above technical scheme of the utility model, for the convenient understanding the above technical scheme of the utility model, just below the utility model discloses theory of operation or the mode of operation at the actual process carry out the detailed description:
in practical application, firstly, wastewater is poured into the sedimentation tank 2 for standing sedimentation, larger impurity substances in the wastewater can be settled in a static state and fall into the first sedimentation bin 5, the wastewater on the upper layer in the sedimentation tank 2 is collected into the reaction tank 3 through the first water pump 6, the wastewater enters the reaction tank 3, the motor 11 is started, a medicament for sedimentation is added into the reaction tank through the medicament inlet 13, the stirring shaft 9 is driven to rotate by the starting of the motor 11, so as to drive the stirring blades 10 to rotate, the stirring blades 10 can mix the medicament and the wastewater, so that the impurities in the wastewater are settled again, the wastewater is subjected to standing sedimentation after stirring, the settled impurities can fall into the second sedimentation bin 14, the collection process of sediments is realized, the wastewater on the upper layer in the reaction tank 3 after standing sedimentation is collected into the filter tank 4 through the second water pump 16, first filter screen 18 in filtering ponds 4, second filter screen 19 can filter impurity, then the switching device department of landing, thereby can filter the floating impurity in the waste water, then activated carbon adsorption plate 20 can get rid of the harmful substance of aquatic, the purity of water has been increased, can realize the recycle of waste water, the emission standard of waste water has been improved simultaneously, the device simple structure, convenient operation uses, the recycle of waste water has been increased, the emission standard of waste water has been improved simultaneously.
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 (7)
1. The industrial wastewater treatment equipment is characterized by comprising a bottom plate, wherein one side of the bottom plate is provided with a recovery tank (1), one side of the recovery tank (1) is fixedly provided with a sedimentation tank (2), one side of the sedimentation tank (2) is positioned on the recovery tank (1) and is provided with a reaction tank (3), one side of the reaction tank (3) is positioned on the recovery tank (1) and is provided with a filter tank (4), the sedimentation tank (2) is internally provided with a first sedimentation bin (5), a first water pump (6) is arranged above the sedimentation tank (2), one end of the first water pump (6) is provided with a first water pipe (7), one end of the first water pipe (7) is communicated with the sedimentation tank (2), one end of the first water pump (6) far away from the first water pipe (7) is connected with the reaction tank (3) through a second water pipe (8), and the reaction tank (3) is internally provided with a stirring device, the stirring device comprises a stirring shaft (9), a plurality of stirring blades (10) are fixedly arranged on the stirring shaft (9), one end of the stirring shaft (9) is connected with the output end of a motor (11), a supporting plate (12) is fixedly arranged on one side of the reaction tank (3), the motor (11) is arranged on the supporting plate (12), a medicine inlet (13) is arranged on one side of the supporting plate (12), a second settling bin (14) is arranged at the bottom of the reaction tank (3), a third water pipe (15) is arranged on one side of the reaction tank (3), a second water pump (16) is arranged at one end of the third water pipe (15), a fourth water pipe (17) is arranged at the other end of the second water pump (16), the fourth water pipe (17) is communicated with the filtering tank (4), a filtering device is arranged inside the filtering tank (4) and comprises a first filtering net (18), the lower part of first filter screen (18) is equipped with second filter screen (19), second filter screen (19) are kept away from first filter screen (18) one side is fixed and is equipped with activated carbon adsorption plate (20).
2. An industrial wastewater treatment plant according to claim 1, characterized in that the bottom of the filtration tank (4) is in communication with the top of the recovery tank (1) through a communication pipe (21).
3. The industrial wastewater treatment equipment according to claim 2, wherein one side of the filtering tank (4) is provided with an opening and closing device, the opening and closing device comprises a slag hole (22), a sealing plate (23) is arranged on the slag hole (22), one end of the sealing plate (23) is connected with the filtering tank (4) through a connecting hinge, and one end of the sealing plate (23) far away from the connecting hinge is provided with a fixing device.
4. The industrial wastewater treatment equipment according to claim 3, wherein the fixing device comprises a projection, one end of the projection is fixedly connected with the sealing plate (23), and the projection is in threaded connection with the filtering tank (4) through a locking bolt (24).
5. The industrial wastewater treatment equipment according to claim 4, wherein one side of the bottom of the recovery tank (1) is provided with a water outlet pipe (25), and the water outlet pipe (25) is provided with a control valve.
6. The industrial wastewater treatment equipment according to claim 5, wherein one end of each of the first filter screen (18), the second filter screen (19) and the activated carbon adsorption plate (20) is fixedly connected with the inner wall of one side of the filter tank (4), and the first filter screen (18), the second filter screen (19) and the activated carbon adsorption plate (20) form an included angle of 30 degrees with the horizontal direction.
7. The industrial wastewater treatment equipment according to claim 6, wherein one side of each of the first water pump (6) and the second water pump (16) is provided with a placing plate, and one end of each placing plate is fixedly connected with the reaction tank (3) and the filtering tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020088548.7U CN211595295U (en) | 2020-01-15 | 2020-01-15 | Industrial wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020088548.7U CN211595295U (en) | 2020-01-15 | 2020-01-15 | Industrial wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211595295U true CN211595295U (en) | 2020-09-29 |
Family
ID=72577210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020088548.7U Expired - Fee Related CN211595295U (en) | 2020-01-15 | 2020-01-15 | Industrial wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211595295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476914A (en) * | 2021-07-19 | 2021-10-08 | 广东恒锦通科技有限公司 | Method for recycling net washing water |
-
2020
- 2020-01-15 CN CN202020088548.7U patent/CN211595295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113476914A (en) * | 2021-07-19 | 2021-10-08 | 广东恒锦通科技有限公司 | Method for recycling net washing water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208406232U (en) | A kind of environment-friendly sewage processing unit | |
| CN209759162U (en) | A effluent treatment plant for mining engineering | |
| CN110127826A (en) | A kind of environment protection field sedimentation basin of sewage disposal | |
| CN212504358U (en) | Sewage treatment circulating system of concrete mixing plant | |
| CN213202596U (en) | Resin adsorption and advanced treatment device for special pollutants | |
| CN211595295U (en) | Industrial wastewater treatment equipment | |
| CN208603894U (en) | A kind of infant industry sewage treatment chemicals dosing plant | |
| CN211521914U (en) | Efficient treatment device for mine wastewater discharge | |
| CN215756785U (en) | Suspended matter removing device for industrial wastewater treatment | |
| CN202881027U (en) | Device for removing organophosphorus from wastewater produced in rare earth extraction process | |
| CN216273431U (en) | Power station grit aggregate waste water treatment equipment | |
| CN215480334U (en) | Industrial wastewater recycling device | |
| CN215288294U (en) | A new type of sewage filter device for mixer in mixing station | |
| CN212236104U (en) | Sedimentation tank for sludge treatment with high sedimentation rate | |
| CN210505825U (en) | High-efficiency sewage treatment equipment | |
| CN211078668U (en) | Waste water treatment device that construction used | |
| CN202201763U (en) | Sequencing batch wastewater treatment equipment | |
| CN213506390U (en) | Be used for synthetic leather DMF high concentration waste water biological treatment device | |
| CN218453970U (en) | Processing apparatus is used in chemical industry waste water processing | |
| CN113003773A (en) | Industrial wastewater treatment device for power plant and treatment method thereof | |
| CN218653108U (en) | Concrete sedimentation tank | |
| CN112897748A (en) | Hydropower station sandstone aggregate production wastewater treatment equipment and process | |
| CN221027988U (en) | Assembled industrial wastewater purifying equipment | |
| CN217650994U (en) | Device for reducing filter-pressing moisture of calcium slag | |
| CN220393476U (en) | Wastewater treatment device capable of realizing multi-layer separation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 |