CN207227243U - A kind of environment-friendly type municipal sludge processing system - Google Patents
A kind of environment-friendly type municipal sludge processing system Download PDFInfo
- Publication number
- CN207227243U CN207227243U CN201721013973.4U CN201721013973U CN207227243U CN 207227243 U CN207227243 U CN 207227243U CN 201721013973 U CN201721013973 U CN 201721013973U CN 207227243 U CN207227243 U CN 207227243U
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- CN
- China
- Prior art keywords
- mixer
- axis
- processing system
- sludge
- environment
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 70
- 239000000446 fuel Substances 0.000 claims abstract description 41
- 238000001035 drying Methods 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 239000010801 sewage sludge Substances 0.000 claims abstract description 8
- 239000005416 organic matter Substances 0.000 abstract description 11
- 239000003245 coal Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- -1 and in use Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of environment-friendly type municipal sludge processing system, belong to sludge treatment field, it includes the mixing mechanism, drying mechanism and cutting mechanism set gradually, and the mixing mechanism includes the mixer with inlet port and outlet port and the screw feeding component being arranged in mixer；The mixer, which is located at feed inlet, is equipped with fuel particle feeding assembly and sewage sludge feed pump group, and the utility model is rational in infrastructure, and mud coal can be prepared by this device so that the organic matter energy in sludge can be well used.
Description
Technical field
Municipal sludge treatment technology is the utility model is related to, more particularly to a kind of environment-friendly type municipal sludge processing system.
Background technology
Municipal sludge refers to the mud only with certain viscosity discharged after the concentrated dehydration in municipal sewage plant, it contains
There are the nutrients such as the organic matters such as abundant grease and N, P, K, if mishandling, not only be easy to cause environmental pollution,
Waste of resources is caused for meeting.
The processing for municipal sludge generally has following four at present：Sludge landfill, sludge incineration, agricultural sludge and ocean
Topple over.Wherein sludge incineration refers under conditions of certain temperature, gas phase are fully aerobic, and having in sludge is used in incinerator
Combustion reaction occurs for machine matter, but often due to the content of organic matter is few in sludge, combustion process is difficult to constantly provide abundance
Thermal energy, therefore sludge incineration, also with regard to being only that sludge is burned, the organic matter energy in sludge is not well used.
Utility model content
The purpose of this utility model is to provide a kind of environment-friendly type municipal sludge processing system, and mud can be prepared by this device
Coal so that the organic matter energy in sludge can be well used.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of environment-friendly type municipal sludge processing system, including mixing mechanism, drying mechanism and the cutting mechanism set gradually,
The mixing mechanism includes the mixer with inlet port and outlet port and the screw feeding component being arranged in mixer；
The mixer, which is located at feed inlet, is equipped with fuel particle feeding assembly and sewage sludge feed pump group；The fuel particle feeding assembly
Including fuel particle feeding rack, it is arranged at the fuel particle feeding belt of fuel particle feeding rack and drives the fuel particle
The fuel particle driving motor of feeding belt charging；The drying mechanism includes being connected with the discharge port of mixer and with outflow
Mouthful drying baker, be arranged at the drying component of drying baker and at flow export and be used to transmit the transfer assembly of sludge；Institute
Stating cutting mechanism includes being connected to the cutting groove of transfer assembly flow export and is fixedly connected on the cutting assembly of cutting groove.
Using above-mentioned technical proposal, fuel particle feeding assembly is sent into fuel particle, sewage sludge feed pump group into mixer
Sludge is sent into mixer, is then uniformly mixed by screw feeding component, then drains into drying baker and passes through baking
Dry component is dried, and is passed to again by transfer assembly in cutting groove after being dried to certain dry and hard degree, is finally passed through cutting again
Component cutting is blocking, and mud coal has been made, and in use, fuel particle can continue to provide thermal energy, during which among sludge
Organic matter also provides a part of thermal energy, and then rationally utilizes the purpose of sludge organic matter energy.
Preferably, the cutting assembly includes being fixedly connected on the supporting rack of cutting groove, is fixedly connected on supporting rack and is in
Inverted hydraulic cylinder and the cutter plate for being fixedly connected on hydraulic cylinder piston rod.
Using above-mentioned technical proposal, supporting rack is used for fixer cylinder pressure, Driven by Hydraulic Cylinder cutter plate move down and then
Achieve the purpose that to cut sludge.
Preferably, the drying baker, which is located at flow export, is provided with deflector chute, and the deflector chute is from flow export to cutting groove
Direction tilts, and the slanted upper end of deflector chute is resisted against transfer assembly.
Using above-mentioned technical proposal, the sludge in drying baker can be transmitted in cutting groove.
Preferably, the slanted upper end of the deflector chute has inclined-plane, and the inclined-plane front end is connected to transfer assembly.
Using above-mentioned technical proposal, it is not easy to be flowed into deflector chute relative to certain thickness front end, sludge, and
It is arranged to inclined-plane so that sludge is easily flowed on deflector chute, then into cutting groove.
Preferably, the screw feeding component includes screw feeding axis, and the screw feeding axis includes being rotationally connected with mixed
Axis and the spiral helical blade being arranged at outside axis in hopper；The axis is in hollow setting, and described axis one end is
Thermal medium inlet, the other end of the axis is thermal medium outlet.
Using above-mentioned technical proposal, be passed through thermal medium fluid into axis, there are the temperature difference inside and outside axis, cause thermal medium with
Heat transfer between sludge so that the moisture evaporation in sludge, improves the dry and hard degree of processing post fuel particle.
Preferably, the helical blade is also in hollow setting, and the helical blade is connected with axis.
Using above-mentioned technical proposal, it is big with the contact area of sludge compared to axis for helical blade, improves heat exchange
Area, further increases treatment effect；Helical blade is in rotary state at the same time, has the effect of stirring to sludge, more dirty
Mud can touch helical blade, and contact is more abundant, therefore goes the better of moisture removal.
Preferably, the screw feeding component further includes the motor for being fixedly connected on batch mixing box outer wall and is arranged at
Gear set between screw feeding axis and motor.
Using above-mentioned technical proposal, motor is not to be directly connected to the end of screw feeding axis, screw feeding axis
End can connect other structures, or be set to mode for example as outlet.
Preferably, the mixer is hollow column frustum structure, and its outer wall offers some osculums, the charging
Mouth is arranged at the large-diameter portion of mixer, and the discharge port is arranged at the small diameter portion of mixer；The helical blade is by discharge port court
Feed inlet direction is set in continuous extension.
Using above-mentioned technical proposal, sludge is depressed into small diameter portion by the large-diameter portion of mixer, can when sludge is to small diameter portion
More water are squeezed out, thereby reduce water content.
In summary：Mixing mechanism, drying component and cutting assembly are predominantly provided with, can be by fuel particle and sludge
Mixing, drying and stripping and slicing, have been made mud coal, and in use, fuel particle can continue to provide thermal energy, during which among sludge
Organic matter also provide a part of thermal energy, and then rationally utilize the purpose of sludge organic matter energy.
Brief description of the drawings
Fig. 1 is the structure diagram of embodiment；
Fig. 2 is that embodiment is used to show the structure diagram inside mixer；
Fig. 3 is the structure diagram that embodiment is used to show drying mechanism and cutting mechanism；
Fig. 4 is the structure diagram that embodiment is used to show deflector chute.
Reference numeral：1st, mixing mechanism；11st, mixer；111st, feed hopper；112nd, discharge bucket；113rd, axis；114th, it is electronic
Machine；115th, osculum；116th, helical blade；2nd, drying mechanism；21st, drying baker；211st, flow export；22nd, component is dried；221st, it is electric
Heat supply network；23rd, transfer assembly；3rd, cutting mechanism；31st, cutting groove；32nd, supporting rack；33rd, hydraulic cylinder；34th, cutter plate；4th, fuel
Particulate charge component；41st, fuel particle feeding rack；42nd, fuel particle feeding belt；5th, deflector chute；51st, inclined-plane；6th, sewage sludge feed
Pump group；61st, sludge pump；62nd, sludge pipe.
Embodiment
As described below is only the preferred embodiment of the utility model, and protection domain is not limited merely to the embodiment, all
The technical solution belonged under the utility model thinking should belong to the scope of protection of the utility model.At the same time it should be pointed out that for
For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from, this
A little improvements and modifications also should be regarded as the scope of protection of the utility model.
See Fig. 1, a kind of environment-friendly type municipal sludge processing system, including mixing mechanism 1,2 and of drying mechanism set gradually
Cutting mechanism 3, mixing mechanism 1 are set on the ground by stent, and are arranged at positioned at the top of drying mechanism 2, cutting mechanism 3
The side of drying mechanism 2.
Mixing mechanism 1 includes the mixer 11 of column frustum structure, and 11 outer wall of mixer circumferentially offers osculum 115,
The front portion of mixer 11 is large-diameter portion, feed hopper 111 is provided with above large-diameter portion, feed hopper 111 is offered to be connected with mixer 11
Logical feed inlet；11 rear portion of mixer is small diameter portion, is provided with discharge bucket 112 below small diameter portion, discharge bucket 112 is offered and mixed
The discharge port that hopper 11 connects.
The top of feed hopper 111 is provided with fuel particle feeding assembly 4 and sewage sludge feed pump group 6, and sewage sludge feed pump group 6 is wrapped
The sludge pump 61 installed in 111 side of feed hopper and the sludge pipe 62 for being connected to sludge pump 61 are included, sludge pump 61, which is installed on, to be fed
Struggle against 111 sides, material can be taken out into feed hopper 111 by sludge pump 61 and sludge pipe 62.
Fuel particle feeding assembly 4 includes fuel particle feeding rack 41, fuel particle feeding belt 42 and fuel particle driving
Motor（Not shown in figure）, the top of fuel particle feeding rack 41 is higher than feed hopper 111, and 42 outer end of fuel particle feeding belt is connects
Expect end, the inner is discharge end, and fuel particle driving motor is installed on the side of fuel particle feeding rack 41, it is used to drive fuel
Particulate charge band 42 rotates, and when fuel particle is poured on fuel particle feeding belt 42 by staff, fuel particle can be with
And be sent at feed hopper 111 and be flowed into feed hopper 111, the fuel particle feeding assembly 4 of embodiment is not limited only to this,
It can also be inclined material transfer equipment.
See Fig. 1 and 2, mixing mechanism 1 further includes the screw feeding component for being arranged at mixer 11, and screw feeding component includes
Motor 114, gear set and screw agitation shaft, motor 114 are installed on the end of 11 large-diameter portion of mixer, its output shaft is horizontal
Connection gear group in mixer 11 is penetrated into, gear set includes coaxially being fixed in the driving gear of output shaft and is engaged in driving tooth
The driven gear of wheel；Screw agitation shaft includes axis 113 and the axial screw being arranged at by coaxial bearing in mixer 11
The helical blade 116 being arranged on outside axis 113, helical blade 116 is from 11 small diameter portion of mixer to its width of large-diameter portion in gradual
Increase；Driven gear is fixed with 113 phase of axis, and then is started motor 114 and driven the rotating effect of screw agitation shaft.
In order to obtain more preferable desiccation effect, embodiment sets axis 113 and helical blade 116 in hollow, and two
Person is set in connection, and inside can be passed through the fluids such as steam, and one end of axis 113 through the front portion of mixer 11 is thermal medium inlet
（Right end i.e. in figure）, for thermal medium inlet available for jet chimney is installed, the one end at axis 113 through 11 rear portion of mixer is heat
Media outlet（Left end i.e. in figure）, for drawing surplus hot gas, thermal medium fluid is passed through into axis 113, inside and outside axis 113
There are the temperature difference, causes heat transfer between thermal medium and biochemical sludge so that the moisture evaporation in sludge, what raising was handled
The dry and hard degree of biochemical sludge.
See Fig. 3, drying mechanism 2 includes drying baker 21, the drying component 22 for being arranged at drying baker 21 and transmits sludge
Transfer assembly 23, drying component 22 are the electric network 221 for the surrounding for being installed on 21 inner wall of drying baker and are connected to electric network 221
Power cord, power on heating electric network 221 and then the purpose to heating up in drying baker 21, and transfer assembly 23 is to be arranged on
The conveyer belt and transmission motor of 21 bottom of drying baker, the top of drying baker 21 are connected with discharge bucket 112, and conveyer belt is located at discharge bucket
112 forward direction side, the sludge fallen for picking up discharge bucket 112,21 side of drying baker offers flow export 211, for flowing out
Sludge after drying.
Cutting mechanism 3 includes cutting groove 31 and the cutting assembly on cutting groove 31, and cutting groove 31 is arranged on drying
The side of case 21, passes through a deflector chute 5 between the two（Reference can be made to Fig. 4）It is attached, deflector chute 5 is inclined to set, anterior bottom
Face is welded in 211 lower edge of flow export of drying baker 21, while its slanted upper end is penetrated into drying baker 21 simultaneously from flow export 211
Transmission belt surface is abutted to, in addition, the slanted upper end of deflector chute 5 has inclined-plane 51,51 front end of inclined-plane is connected to conveyer belt and will pass
Send under the sludge scraping taken, and then sludge is flowed into the purpose in deflector chute 5 as much as possible.
Cutting assembly includes the supporting rack 32, hydraulic cylinder 33 and cutter plate 34 for being welded on 31 side of cutting groove, cutter
Disk 34 has crisscross blade, and hydraulic cylinder 33 is inverted the top for being fixedly mounted on supporting rack 32, and cutter plate 34 fixes peace
On 33 piston rod of hydraulic cylinder, when the driving cutter plate 34 of hydraulic cylinder 33 is cut downwards, if blade can cut into sludge
Dry block.
By transport vehicle by fuel particle by fuel particle feeding assembly 4 to 11 feeding of mixer, meanwhile, sewage sludge feed
Pump group 6 is sent into sludge into mixer 11, by two parts material mix by the screw feeding component in mixer 11
It is even（The materials such as flyash can certainly be added, for increasing the viscosity of sludge, avoid its osculum 115 from mixer 11
Outflow）, then drain into drying baker 21 and dried by drying component 22, is dried to after certain dry and hard degree again by transmitting
Component 23 and deflector chute 5 are passed in cutting groove 31, and after solid accumulation is to certain altitude, staff can use tablet will
Material smoothes out, and it is blocking to reuse the cutting of cutting assembly, mud coal has been made, in use, fuel particle can be carried persistently
For thermal energy, during which the organic matter among sludge also provides a part of thermal energy, takes full advantage of organic matter heat among sludge, into
And achieve the purpose that rationally to utilize sludge organic matter energy.
Claims (8)
1. a kind of environment-friendly type municipal sludge processing system, it is characterised in that including the mixing mechanism set gradually（1）, dryer
Structure（2）And cutting mechanism（3）, the mixing mechanism（1）Including the mixer with inlet port and outlet port（11）And set
In mixer（11）Interior screw feeding component；The mixer（11）Fuel particle feeding assembly is equipped with feed inlet
（4）With sewage sludge feed pump group（6）；The fuel particle feeding assembly（4）Including fuel particle feeding rack（41）, be arranged at fuel
Particulate charge frame（41）Fuel particle feeding belt（42）And the driving fuel particle feeding belt（42）The fuel of charging
Grain driving motor；The drying mechanism（2）Including with mixer（11）Discharge port be connected and there is flow export（211）Baking
Dry case（21）, be arranged at drying baker（21）Drying component（22）And positioned at flow export（211）Place and for transmitting sludge
Transfer assembly（23）；The cutting mechanism（3）Including being connected to transfer assembly（23）Cutting groove（31）Cut with being fixedly connected on
Cut groove（31）Cutting assembly.
A kind of 2. environment-friendly type municipal sludge processing system according to claim 1, it is characterised in that the cutting assembly bag
Include and be fixedly connected on cutting groove（31）Supporting rack（32）, be fixedly connected on supporting rack（32）And it is in inverted hydraulic cylinder（33）、
And it is fixedly connected on hydraulic cylinder（33）The cutter plate of piston rod（34）.
A kind of 3. environment-friendly type municipal sludge processing system according to claim 2, it is characterised in that the drying baker（21）
Positioned at flow export（211）Place is provided with deflector chute（5）, the deflector chute（5）By flow export（211）To cutting groove（31）Incline in direction
Tiltedly, and deflector chute（5）Slanted upper end be resisted against transfer assembly（23）.
A kind of 4. environment-friendly type municipal sludge processing system according to claim 3, it is characterised in that the deflector chute（5）
Slanted upper end there is inclined-plane（51）, the inclined-plane（51）Front end is connected to transfer assembly（23）.
A kind of 5. environment-friendly type municipal sludge processing system according to claim 1, it is characterised in that the screw feeding group
Part includes screw feeding axis, and the screw feeding axis includes being rotationally connected with mixer（11）Interior axis（113）Set with spiral
It is placed in axis（113）Outer helical blade（116）；The axis（113）In hollow setting, and the axis（113）One end is
Thermal medium inlet, the axis（113）The other end be thermal medium outlet.
A kind of 6. environment-friendly type municipal sludge processing system according to claim 5, it is characterised in that the helical blade
（116）Also it is in hollow setting, and the helical blade（116）With axis（113）It is connected.
A kind of 7. environment-friendly type municipal sludge processing system according to claim 6, it is characterised in that the screw feeding group
Part, which further includes, is fixedly connected on mixer（11）The motor of outer wall（114）And it is arranged at screw feeding axis and motor
（114）Between gear set.
A kind of 8. environment-friendly type municipal sludge processing system according to claim 7, it is characterised in that the mixer（11）
For hollow column frustum structure, and its outer wall offers some osculums（115）, the feed inlet is arranged at mixer（11）'s
Large-diameter portion, the discharge port are arranged at mixer（11）Small diameter portion；The helical blade（116）By discharge port towards feed inlet side
Set in continuous extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013973.4U CN207227243U (en) | 2017-08-14 | 2017-08-14 | A kind of environment-friendly type municipal sludge processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013973.4U CN207227243U (en) | 2017-08-14 | 2017-08-14 | A kind of environment-friendly type municipal sludge processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207227243U true CN207227243U (en) | 2018-04-13 |
Family
ID=61856985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721013973.4U Expired - Fee Related CN207227243U (en) | 2017-08-14 | 2017-08-14 | A kind of environment-friendly type municipal sludge processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207227243U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316933A (en) * | 2019-07-28 | 2019-10-11 | 南京汉尔斯生物科技有限公司 | A kind of sludge dewatering equipment and its sludge drying mechanism |
| CN110787723A (en) * | 2019-10-23 | 2020-02-14 | 湖北大学 | Inner return guniting granulator |
| CN113817522A (en) * | 2021-09-08 | 2021-12-21 | 刘嘉斌 | Municipal sludge derived solid fuel preparation facilities |
| CN115784555A (en) * | 2022-11-30 | 2023-03-14 | 北京联创智成自动化技术服务有限公司 | Sludge harmless treatment device and process |
-
2017
- 2017-08-14 CN CN201721013973.4U patent/CN207227243U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316933A (en) * | 2019-07-28 | 2019-10-11 | 南京汉尔斯生物科技有限公司 | A kind of sludge dewatering equipment and its sludge drying mechanism |
| CN110787723A (en) * | 2019-10-23 | 2020-02-14 | 湖北大学 | Inner return guniting granulator |
| CN113817522A (en) * | 2021-09-08 | 2021-12-21 | 刘嘉斌 | Municipal sludge derived solid fuel preparation facilities |
| CN113817522B (en) * | 2021-09-08 | 2022-09-16 | 贝卡特环境技术（北京）有限公司 | Municipal sludge derived solid fuel preparation facilities |
| CN115784555A (en) * | 2022-11-30 | 2023-03-14 | 北京联创智成自动化技术服务有限公司 | Sludge harmless treatment device and process |
| CN115784555B (en) * | 2022-11-30 | 2023-08-15 | 北京联创智成自动化技术服务有限公司 | Sludge harmless treatment device and process |
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| 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: 20180413 |