CN208562086U - Sewage intermediate water reuse system - Google Patents
Sewage intermediate water reuse system Download PDFInfo
- Publication number
- CN208562086U CN208562086U CN201821172171.2U CN201821172171U CN208562086U CN 208562086 U CN208562086 U CN 208562086U CN 201821172171 U CN201821172171 U CN 201821172171U CN 208562086 U CN208562086 U CN 208562086U
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- Prior art keywords
- tank
- sewage
- pond
- reuse system
- intermediate water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 239000010865 sewage Substances 0.000 title claims abstract description 65
- 238000010992 reflux Methods 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 230000003750 conditioning Effects 0.000 claims abstract description 35
- 238000004062 sedimentation Methods 0.000 claims abstract description 35
- 239000010802 sludge Substances 0.000 claims abstract description 34
- 238000005273 aeration Methods 0.000 claims abstract description 30
- 238000005276 aerator Methods 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 206010002660 Anoxia Diseases 0.000 description 4
- 241000976983 Anoxia Species 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000029087 digestion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000000737 periodic Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000001376 precipitating Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The utility model discloses a kind of sewage intermediate water reuse systems, including septic tank, conditioning tank, anoxic pond, aeration tank, inclined-tube sedimentation tank and the middle pond being sequentially communicated；The elevator pump being connected to the anoxic pond is installed in the conditioning tank；Aerator and hanging filler are installed in the aeration tank；Air lift nitrification liquid reflux unit is installed between the aeration tank and the anoxic pond；Air lift sludge refluxing apparatus is installed between the inclined-tube sedimentation tank and the septic tank；Water supply device is installed in the middle pond.Many advantages, such as the application low energy consumption, compact layout save land occupation, and on-site installation work amount is small, regular job and enough small maintenance workers, suitable for the processing of the Treated sewage reusing of scenic spot independence toilet and the toilet of Expressway Service.Therefore the water that solves the problems, such as that treated, has preferable economic benefit and social benefit without place to go.
Description
Technical field
The utility model relates to sanitary sewage disposal and reuse technology fields, in particular to a kind of sewage Treated sewage reusing system
System.
Background technique
Scenic spot toilet and Expressway Service toilet majority are in the position far from urban district, municipal drainage pipe network
It does not all cover generally.
If water supply part can not be connected to municipal water sources, deep-well self-contained water source is generally used；Water discharging part majority is to do dirt
In water body or anti-Great Gulch near being discharged into after water process.
Utility model content
The purpose of this utility model is to provide a kind of sewage intermediate water reuse systems, to solve on existing in the prior art
State technical problem.
Sewage intermediate water reuse system provided by the utility model, including be sequentially communicated septic tank, conditioning tank, anoxic pond,
Aeration tank, inclined-tube sedimentation tank and middle pond；
The elevator pump being connected to the anoxic pond is installed in the conditioning tank；
Aerator and hanging filler are installed in the aeration tank；
Air lift nitrification liquid reflux unit is installed between the aeration tank and the anoxic pond；
Air lift sludge refluxing apparatus is installed between the inclined-tube sedimentation tank and the septic tank；
Water supply device is installed in the middle pond.
It further, further include compressed air source unit, the compressed air source unit flows back with the aerator, air lift nitrification liquid respectively
Device is connected with air lift sludge refluxing apparatus.
Further, the compressed air source unit is blower.
Further, the water supply device is constant pressure water supply equipment.
Further, the constant pressure water supply equipment is constant pressure water supply pump.
Further, the inclined-tube sedimentation tank is arranged in the middle pond.
Further, filtration members are installed between the septic tank and the conditioning tank.
Further, the filtration members are fine fack strainer.
Further, there is the elevator pump high liquid level to open pump, the function of low liquid level termination of pumping.
Further, the septic tank is two grid septic tanks.
Sewage intermediate water reuse system provided by the utility model, has the advantages that
Low energy consumption, compact layout save land occupation, and on-site installation work amount is small, and regular job and maintenance workers are enough small etc. all
More advantages, suitable for the processing of the Treated sewage reusing of scenic spot independence toilet and the toilet of Expressway Service.
Therefore the problem of present application addresses treated water without place to go has preferable economic benefit and social benefit.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the sewage intermediate water reuse system that the utility model embodiment one provides.
Appended drawing reference: 1- septic tank；2- conditioning tank；3- anoxic pond；The aeration tank 4-；5- inclined-tube sedimentation tank；Pond in 6-；7-
Elevator pump；8- aerator；9- air lift nitrification liquid reflux unit；10- air lift sludge refluxing apparatus；11- water supply device；12- gas
Source device.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
Embodiment one:
Fig. 1 is the structural schematic diagram for the sewage intermediate water reuse system that the utility model embodiment one provides；As shown in Figure 1,
The sewage intermediate water reuse system that the utility model embodiment one provides, including septic tank 1, the conditioning tank 2, anoxic pond being sequentially communicated
3, aeration tank 4, inclined-tube sedimentation tank 5 and middle pond 6；
The elevator pump 7 being connected to the anoxic pond 3 is installed in the conditioning tank 2；
Aerator 8 and hanging filler are installed in the aeration tank 4；
Air lift nitrification liquid reflux unit 9 is installed between the aeration tank 4 and the anoxic pond 3；
Air lift sludge refluxing apparatus 10 is installed between the inclined-tube sedimentation tank 5 and the septic tank 1；
Water supply device 11 is installed in the middle pond 6.
Specifically, further include compressed air source unit 12, the compressed air source unit 12 respectively with the aerator 8, air lift nitrification liquid
Reflux unit 9 and air lift sludge refluxing apparatus 10 connect.
The working principle of the application is: the sewage of toilet is directly entered septic tank 1, sewage by drainage pipeline gravity stream
Pass through the lattice precipitating and anaerobic digestion of 12-twenty four hours in septic tank 1, the solidfied material in sewage is deposited on bottom of pond point
The hyrate of solution, upper layer digests hydrolysis, creates conditions for subsequent water process.The discharge that septic tank 1 also receives inclined-tube sedimentation tank 5 is dirty
Mud, septic tank 1 need periodic cleaning sludge.
The water outlet of septic tank 1 enters conditioning tank 2.The effect of conditioning tank 2 is the fluctuation of balanced water quality and water, is made subsequent
Equipment flowsheet can be more stable operation.Elevator pump 7 in conditioning tank 2 provides sewage by certain flow for anoxic pond 3.
The water outlet of conditioning tank 2 enters anoxic pond 3, while mixing with phegma provided by air lift nitrification liquid reflux unit 9,
Anoxia condition is formed, denitrification processing is carried out to sewage.Treated the sewage of anoxic pond 3 enters aeration tank 4 by interface channel,
Aerator 8 and hanging filler are equipped in aeration tank 4, sewage is in aerobic condition in pond, and the pollutant in sewage is by microorganism
Oxidation or nitrification.A part of mixed liquor is stripped nitrification liquid reflux unit 9 and is back to anoxic pond 3, another part nitrification liquid and work
Property sludge etc. flow into inclined-tube sedimentation tank 5 together, carry out precipitation and separation.The activated sludge of sedimentation basin bottom deposit passes through air lift sludge
Reflux unit 10 is back to septic tank 1；The clear water part overflow that precipitation and separation goes out goes out inclined-tube sedimentation tank 5, and pond 6 is temporary in
For use.It is equipped with water supply device 11 in middle pond 6, provides the middle water of reuse for the water system of flushing the toilet of toilet.
12 continuous work of compressed air source unit is aerator 8, air lift nitrification liquid reflux unit 9 and air lift sludge refluxing apparatus
10 provide compressed air.
Embodiment two:
The sewage intermediate water reuse system that the present embodiment two provides is the sewage intermediate water reuse system provided embodiment one
It is further improved, on the basis of embodiment one and Fig. 1, the sewage intermediate water reuse system that the present embodiment two provides, including according to
Septic tank 1, conditioning tank 2, anoxic pond 3, aeration tank 4, inclined-tube sedimentation tank 5 and the middle pond 6 of secondary connection；
The elevator pump 7 being connected to the anoxic pond 3 is installed in the conditioning tank 2；
Aerator 8 and hanging filler are installed in the aeration tank 4；
Air lift nitrification liquid reflux unit 9 is installed between the aeration tank 4 and the anoxic pond 3；
Air lift sludge refluxing apparatus 10 is installed between the inclined-tube sedimentation tank 5 and the septic tank 1；
Water supply device 11 is installed in the middle pond 6.
Specifically, further include compressed air source unit 12, the compressed air source unit 12 respectively with the aerator 8, air lift nitrification liquid
Reflux unit 9 and air lift sludge refluxing apparatus 10 connect.
The working principle of the application is: the sewage of toilet is directly entered septic tank 1, sewage by drainage pipeline gravity stream
Pass through the lattice precipitating and anaerobic digestion of 12-twenty four hours in septic tank 1, the solidfied material in sewage is deposited on bottom of pond point
The hyrate of solution, upper layer digests hydrolysis, creates conditions for subsequent water process.The discharge that septic tank 1 also receives inclined-tube sedimentation tank 5 is dirty
Mud, septic tank 1 need periodic cleaning sludge.
The water outlet of septic tank 1 enters conditioning tank 2.The effect of conditioning tank 2 is the fluctuation of balanced water quality and water, is made subsequent
Equipment flowsheet can be more stable operation.Elevator pump 7 in conditioning tank 2 provides sewage by certain flow for anoxic pond 3.
The water outlet of conditioning tank 2 enters anoxic pond 3, while mixing with phegma provided by air lift nitrification liquid reflux unit 9,
Anoxia condition is formed, denitrification processing is carried out to sewage.Treated the sewage of anoxic pond 3 enters aeration tank 4 by interface channel,
Aerator 8 and hanging filler are equipped in aeration tank 4, sewage is in aerobic condition in pond, and the pollutant in sewage is by microorganism
Oxidation or nitrification.A part of mixed liquor is stripped nitrification liquid reflux unit 9 and is back to anoxic pond 3, another part nitrification liquid and work
Property sludge etc. flow into inclined-tube sedimentation tank 5 together, carry out precipitation and separation.The activated sludge of sedimentation basin bottom deposit passes through air lift sludge
Reflux unit 10 is back to septic tank 1；The clear water part overflow that precipitation and separation goes out goes out inclined-tube sedimentation tank 5, and pond 6 is temporary in
For use.It is equipped with water supply device 11 in middle pond 6, provides the middle water of reuse for the water system of flushing the toilet of toilet.
12 continuous work of compressed air source unit is aerator 8, air lift nitrification liquid reflux unit 9 and air lift sludge refluxing apparatus
10 provide compressed air.
Specifically, the compressed air source unit 12 is blower.
Specifically, the water supply device 11 is constant pressure water supply equipment.
Embodiment three:
The sewage intermediate water reuse system of the present embodiment three offers is the sewage intermediate water reuse system provided embodiment one
Further improvement, on the basis of embodiment one and Fig. 1, the present embodiment three provide sewage intermediate water reuse system, including
Septic tank 1, conditioning tank 2, anoxic pond 3, aeration tank 4, inclined-tube sedimentation tank 5 and the middle pond 6 being sequentially communicated；
The elevator pump 7 being connected to the anoxic pond 3 is installed in the conditioning tank 2；
Aerator 8 and hanging filler are installed in the aeration tank 4；
Air lift nitrification liquid reflux unit 9 is installed between the aeration tank 4 and the anoxic pond 3；
Air lift sludge refluxing apparatus 10 is installed between the inclined-tube sedimentation tank 5 and the septic tank 1；
Water supply device 11 is installed in the middle pond 6.
Specifically, further include compressed air source unit 12, the compressed air source unit 12 respectively with the aerator 8, air lift nitrification liquid
Reflux unit 9 and air lift sludge refluxing apparatus 10 connect.
The working principle of the application is: the sewage of toilet is directly entered septic tank 1, sewage by drainage pipeline gravity stream
Pass through the lattice precipitating and anaerobic digestion of 12-twenty four hours in septic tank 1, the solidfied material in sewage is deposited on bottom of pond point
The hyrate of solution, upper layer digests hydrolysis, creates conditions for subsequent water process.The discharge that septic tank 1 also receives inclined-tube sedimentation tank 5 is dirty
Mud, septic tank 1 need periodic cleaning sludge.
The water outlet of septic tank 1 enters conditioning tank 2.The effect of conditioning tank 2 is the fluctuation of balanced water quality and water, is made subsequent
Equipment flowsheet can be more stable operation.Elevator pump 7 in conditioning tank 2 provides sewage by certain flow for anoxic pond 3.
The water outlet of conditioning tank 2 enters anoxic pond 3, while mixing with phegma provided by air lift nitrification liquid reflux unit 9,
Anoxia condition is formed, denitrification processing is carried out to sewage.Treated the sewage of anoxic pond 3 enters aeration tank 4 by interface channel,
Aerator 8 and hanging filler are equipped in aeration tank 4, sewage is in aerobic condition in pond, and the pollutant in sewage is by microorganism
Oxidation or nitrification.A part of mixed liquor is stripped nitrification liquid reflux unit 9 and is back to anoxic pond 3, another part nitrification liquid and work
Property sludge etc. flow into inclined-tube sedimentation tank 5 together, carry out precipitation and separation.The activated sludge of sedimentation basin bottom deposit passes through air lift sludge
Reflux unit 10 is back to septic tank 1；The clear water part overflow that precipitation and separation goes out goes out inclined-tube sedimentation tank 5, and pond 6 is temporary in
For use.It is equipped with water supply device 11 in middle pond 6, provides the middle water of reuse for the water system of flushing the toilet of toilet.
12 continuous work of compressed air source unit is aerator 8, air lift nitrification liquid reflux unit 9 and air lift sludge refluxing apparatus
10 provide compressed air.
Specifically, the compressed air source unit 12 is blower.
Specifically, the water supply device 11 is constant pressure water supply equipment.
Specifically, the constant pressure water supply equipment is constant pressure water supply pump.
Specifically, the inclined-tube sedimentation tank 5 is arranged in the middle pond 6.
Specifically, filtration members are installed between the septic tank 1 and the conditioning tank 2.
Specifically, the filtration members are fine fack strainer.
Example IV:
The sewage intermediate water reuse system that the present embodiment four provides is the sewage intermediate water reuse system provided embodiment one
It is further improved, on the basis of embodiment one and Fig. 1, the sewage intermediate water reuse system that the present embodiment four provides, including according to
Septic tank 1, conditioning tank 2, anoxic pond 3, aeration tank 4, inclined-tube sedimentation tank 5 and the middle pond 6 of secondary connection；
The elevator pump 7 being connected to the anoxic pond 3 is installed in the conditioning tank 2；
Aerator 8 and hanging filler are installed in the aeration tank 4；
Air lift nitrification liquid reflux unit 9 is installed between the aeration tank 4 and the anoxic pond 3；
Air lift sludge refluxing apparatus 10 is installed between the inclined-tube sedimentation tank 5 and the septic tank 1；
Water supply device 11 is installed in the middle pond 6.
Specifically, further include compressed air source unit 12, the compressed air source unit 12 respectively with the aerator 8, air lift nitrification liquid
Reflux unit 9 and air lift sludge refluxing apparatus 10 connect.
The working principle of the application is: the sewage of toilet is directly entered septic tank 1, sewage by drainage pipeline gravity stream
Pass through the lattice precipitating and anaerobic digestion of 12-twenty four hours in septic tank 1, the solidfied material in sewage is deposited on bottom of pond point
The hyrate of solution, upper layer digests hydrolysis, creates conditions for subsequent water process.The discharge that septic tank 1 also receives inclined-tube sedimentation tank 5 is dirty
Mud, septic tank 1 need periodic cleaning sludge.
The water outlet of septic tank 1 enters conditioning tank 2.The effect of conditioning tank 2 is the fluctuation of balanced water quality and water, is made subsequent
Equipment flowsheet can be more stable operation.Elevator pump 7 in conditioning tank 2 provides sewage by certain flow for anoxic pond 3.
The water outlet of conditioning tank 2 enters anoxic pond 3, while mixing with phegma provided by air lift nitrification liquid reflux unit 9,
Anoxia condition is formed, denitrification processing is carried out to sewage.Treated the sewage of anoxic pond 3 enters aeration tank 4 by interface channel,
Aerator 8 and hanging filler are equipped in aeration tank 4, sewage is in aerobic condition in pond, and the pollutant in sewage is by microorganism
Oxidation or nitrification.A part of mixed liquor is stripped nitrification liquid reflux unit 9 and is back to anoxic pond 3, another part nitrification liquid and work
Property sludge etc. flow into inclined-tube sedimentation tank 5 together, carry out precipitation and separation.The activated sludge of sedimentation basin bottom deposit passes through air lift sludge
Reflux unit 10 is back to septic tank 1；The clear water part overflow that precipitation and separation goes out goes out inclined-tube sedimentation tank 5, and pond 6 is temporary in
For use.It is equipped with water supply device 11 in middle pond 6, provides the middle water of reuse for the water system of flushing the toilet of toilet.
12 continuous work of compressed air source unit is aerator 8, air lift nitrification liquid reflux unit 9 and air lift sludge refluxing apparatus
10 provide compressed air.
Specifically, the compressed air source unit 12 is blower.
Specifically, the water supply device 11 is constant pressure water supply equipment.
Specifically, the constant pressure water supply equipment is constant pressure water supply pump.
Specifically, the inclined-tube sedimentation tank 5 is arranged in the middle pond 6.
Specifically, filtration members are installed between the septic tank 1 and the conditioning tank 2.
Specifically, the filtration members are fine fack strainer.
Specifically, there is the elevator pump 7 high liquid level to open pump, the function of low liquid level termination of pumping.
Specifically, the septic tank 1 is two grid septic tanks.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of sewage intermediate water reuse system, which is characterized in that including septic tank, conditioning tank, anoxic pond, the aeration being sequentially communicated
Pond, inclined-tube sedimentation tank and middle pond；
The elevator pump being connected to the anoxic pond is installed in the conditioning tank；
Aerator and hanging filler are installed in the aeration tank；
Air lift nitrification liquid reflux unit is installed between the aeration tank and the anoxic pond；
Air lift sludge refluxing apparatus is installed between the inclined-tube sedimentation tank and the septic tank；
Water supply device is installed in the middle pond.
2. sewage intermediate water reuse system according to claim 1, which is characterized in that it further include compressed air source unit, the gas source
Device is connect with the aerator, air lift nitrification liquid reflux unit and air lift sludge refluxing apparatus respectively.
3. sewage intermediate water reuse system according to claim 2, which is characterized in that the compressed air source unit is blower.
4. sewage intermediate water reuse system according to claim 1, which is characterized in that the water supply device is constant pressure water supply dress
It sets.
5. sewage intermediate water reuse system according to claim 4, which is characterized in that the constant pressure water supply equipment is constant pressure confession
Water pump.
6. sewage intermediate water reuse system according to claim 1, which is characterized in that the inclined-tube sedimentation tank is arranged described
In middle pond.
7. sewage intermediate water reuse system according to claim 1, which is characterized in that the septic tank and the conditioning tank it
Between filtration members are installed.
8. sewage intermediate water reuse system according to claim 7, which is characterized in that the filtration members are fine fack strainer.
9. sewage intermediate water reuse system according to claim 1, which is characterized in that the elevator pump is opened with high liquid level
Pump, the function of low liquid level termination of pumping.
10. sewage intermediate water reuse system according to claim 1, which is characterized in that the septic tank is two grid septic tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172171.2U CN208562086U (en) | 2018-07-23 | 2018-07-23 | Sewage intermediate water reuse system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172171.2U CN208562086U (en) | 2018-07-23 | 2018-07-23 | Sewage intermediate water reuse system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208562086U true CN208562086U (en) | 2019-03-01 |
Family
ID=65447543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172171.2U Expired - Fee Related CN208562086U (en) | 2018-07-23 | 2018-07-23 | Sewage intermediate water reuse system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208562086U (en) |
-
2018
- 2018-07-23 CN CN201821172171.2U patent/CN208562086U/en not_active Expired - Fee Related
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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: 20190301 Termination date: 20200723 |