CN206408079U - A kind of system of recycling sludge processing - Google Patents
A kind of system of recycling sludge processing Download PDFInfo
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- CN206408079U CN206408079U CN201621376815.0U CN201621376815U CN206408079U CN 206408079 U CN206408079 U CN 206408079U CN 201621376815 U CN201621376815 U CN 201621376815U CN 206408079 U CN206408079 U CN 206408079U
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- Prior art keywords
- outlet
- entrance
- pyrolysis
- sludge
- gas mixture
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The utility model discloses a kind of system of recycling sludge processing.The system includes：Desiccation apparatus, with sludge inlet, dewatered sludge outlet, dries water out, hot water inlet, coolant outlet；Heat accumulating type rotating bed, with feed(raw material)inlet, pyrolysis water out, the outlet of pyrolysis gas mixture, pyrolytic carbon outlet, feed(raw material)inlet is connected with the dewatered sludge outlet of desiccation apparatus；Plasma gasification reative cell, with pyrolysis gas mixture entrance, syngas outlet, pyrolysis gas mixture entrance is connected with the pyrolysis gas mixture outlet of heat accumulating type rotating bed；And purifier, exported with synthesis gas entrance, decontaminating syngas, synthesis gas entrance is connected with the syngas outlet of plasma gasification reative cell.Technique of the present utility model is simple, operating cost is low, recycling level high, secondary pollution is small, and is easily achieved industrialization and scale.
Description
Technical field
The utility model belongs to solid waste resource recovery process field, and in particular to a kind of recycling sludge processing is
System.
Background technology
At present, common sludge disposal technology has press filtration, desiccation, aerobic compost, anaerobic digestion, burning etc..Wherein, simply
Press filtration and desiccation can only be sludge dewatering to 50%-70%, remaining sludge stills need a large amount of landfill disposals, can only as dirt
The pretreatment of mud is used.Aerobic compost and the purpose of anaerobic digestion are that organic fertilizer is made in sludge, are finally gone out as product
Sell, but contain more poisonous and harmful substance in sludge, its product can pollute crops, and therefore, it is difficult to Industry Promotion.Common
Although incineration technology, which has in preferable reduction, burning process, can produce bioxin, have a strong impact on resident's body and be good for
Health, Mass disturbance also happens occasionally.
Pyrolytic technique is that under conditions of anaerobic or anoxybiotic, organic matter is carried out into thermal cracking, is generated with H2、CH4, based on CO
Fuel gas, the fuel oil of high heating value and part fixed carbon.Plasma gasification technology is to material using plasma flare
Heated, local temperature can be to more than 5000 DEG C, and the temperature of reative cell can be made to maintain 1200 DEG C or so, can decompose rapidly
The materials such as pyrolysis oil, bioxin, and produce a large amount of CO, H2Deng synthesis gas.With small, energy recovery utilization rate height of secondary pollution etc.
Feature.
But in the prior art, the pyrolysis oil yield of some sludge rotary kiln pyrogenation techniques is more, pipeline, corrosion are easily blocked
Equipment etc., frequent parking maintenance, and rear end need water-oil separating and the purifier of complexity, cause investment to greatly increase.This
Outside, some sludge shaft furnace plasma gasification technologies, are directly gasified with plasma torch to sludge, due to moisture percentage in sewage sludge compared with
Height, when handling extensive sludge, the power of the technique greatly, consumption rate it is very high, therefore cause operating cost to increase, it is difficult to
Realize industrial applications.
Utility model content
The utility model is intended at least solve one of technical problem in correlation technique to a certain extent.Therefore, this reality
It is to provide a kind of system and method for new recycling sludge processing with new purpose.
The utility model provides the system that a kind of recycling sludge is handled, and the system includes：
Desiccation apparatus, with sludge inlet, dewatered sludge outlet, dries water out, hot water inlet, coolant outlet；
Heat accumulating type rotating bed, with feed(raw material)inlet, pyrolysis water out, the outlet of pyrolysis gas mixture, pyrolytic carbon outlet, institute
Feed(raw material)inlet is stated with the dewatered sludge outlet of the desiccation apparatus to be connected；
Plasma gasification reative cell, with pyrolysis gas mixture entrance, syngas outlet, the pyrolysis gas mixture
Entrance is connected with the pyrolysis gas mixture outlet of the heat accumulating type rotating bed；And
Purifier, is exported with synthesis gas entrance, decontaminating syngas, the synthesis gas entrance and the plasma gasification
The syngas outlet of reative cell is connected.
In some embodiments of the present utility model, the system can also include：
Methanation device, with the outlet of decontaminating syngas entrance, mixed gas outlet and residual gas, the decontaminating syngas
Entrance is connected with the decontaminating syngas outlet of the purifier；And
Separator, with the outlet of gaseous mixture entrance, methane outlet and residual gas, the gaseous mixture entrance and the first
The mixed gas outlet of alkylation unit is connected.
In some embodiments of the present utility model, the system also includes coke quenching device, and the coke quenching device has heat
Charcoal entrance, lime-ash outlet, quenching water inlet are solved, the pyrolytic carbon of the pyrolytic carbon entrance and the heat accumulating type rotating bed exports phase
Even.
In some embodiments of the present utility model, the quenching water inlet of the coke quenching device and doing for the desiccation apparatus
The coolant outlet of dry water out and/or the desiccation apparatus is connected.
In some embodiments of the present utility model, the heat accumulating type rotating bed includes dry section and pyrolysis zone；The heat
Solution water out is arranged in the side wall of the dry section end, and the pyrolysis gas mixture outlet is arranged in the pyrolysis zone end
Top.
The utility model is pyrolyzed using heat accumulating type rotating bed to the sludge after drying and other treatment, and utilizes plasma gasification
Reative cell to pyrolysis oil gas gasify, drying water, cooling water can as pyrolytic carbon quenching water, the synthesis gas yield of acquisition
High, calorific value is high, realizes " innoxious, minimizing, the recycling " of sludge.
In addition, technique of the present utility model is simple, operating cost is low, recycling level high, secondary pollution is small, and it is easy to real
Now industrialization and scale.
In the technique that the utility model is provided, the low yield of pyrolysis oil, and the yield of synthesis gas is very high, will not occur pipeline
Block, equipment such as is corroded at the phenomenon, reduces production cost.
In further modified technique, methane has further been made in synthesis gas, the economic benefit of product is improved.
Brief description of the drawings
The structural representation for the system that Fig. 1 is handled for a kind of recycling sludge in the utility model embodiment.
Embodiment
Below in conjunction with drawings and examples, embodiment of the present utility model is described in more details, with
Just scheme of the present utility model and the advantage of its various aspects be better understood when.However, specific implementations described below
Mode and embodiment are only the purposes of explanation, rather than to limitation of the present utility model.
Referring to Fig. 1, the system for the recycling sludge processing that the utility model is provided includes：Desiccation apparatus 1, heat accumulating type rotation
Bed 2, plasma gasification reative cell 3, purifier 4, methanation device 5, separator 6 and coke quenching device 7.
Desiccation apparatus 1 has sludge inlet, dewatered sludge outlet, dries water out, hot water inlet, coolant outlet.It is dry
It is contact drying device that makeup, which puts 1, and the utility model, as medium, contact drying is carried out to sludge using hot water.
Heat accumulating type rotating bed 2, for carrying out pyrolysis processing to sludge, prepares pyrolysis oil gas and pyrolytic carbon.Heat accumulating type rotates
Bed 2 has feed(raw material)inlet, pyrolysis water out, the outlet of pyrolysis gas mixture, pyrolytic carbon outlet, feed(raw material)inlet and desiccation apparatus 1
Dewatered sludge outlet be connected.
Heat accumulating type rotating bed 2 includes dry section and pyrolysis zone.Pyrolysis water out is arranged in the side wall of dry section end, so as to
Just it is collected being pyrolyzed when water is just produced, reduces system energy consumption；The outlet of pyrolysis gas mixture is arranged in pyrolysis zone end
Top, to obtain the pyrolysis oil gas of high-quality；Pyrolytic carbon exports the bottom for being arranged in pyrolysis zone end, to discharge.
Sludge moisture content is high, if being directly entered heat accumulating type rotating bed 2, can not only reduce the efficiency of pyrolysis, can also increase and is
System energy consumption, causes operating cost to increase.In addition, by pyrolysis, these moisture can become vapor, with pyrolysis gas mixture
Into in follow-up equipment, the progress of subsequent technique can be influenceed.The utility model is provided with desiccation apparatus before heat accumulating type rotating bed 2
1, and the burner hearth sidewall that water out is arranged on the dry section end of heat accumulating type rotating bed 2 will be pyrolyzed, efficiently solve this and ask
Topic.
Heat accumulating type rotating bed 2 is specifically included：Housing, housing formation ring-type furnace chamber, burner hearth operating condition is pressure-fired；Annular
Furnace bottom, material cloth is on ring-shaped furnace bottom, in continuous rotary state；Heat accumulation type radiant tube, multiple heat accumulation type radiant tubes are set
On the internal perisporium of the housing.
Plasma gasification reative cell 3 is acted on using the high-temperature gasification of plasma torch, occurs pyrolysis oil, hydrocarbon gas etc.
Gasification, restructuring, to obtain CO, H2Deng synthesis gas.
Plasma gasification reative cell 3 has pyrolysis gas mixture entrance, syngas outlet, is pyrolyzed gas mixture entrance
It is connected with the pyrolysis gas mixture outlet of heat accumulating type rotating bed 2.
The utility model to sludge due to before gasification and melting, being first pyrolyzed, therefore, plasma gasification reative cell 3
Required plasma flare quantity is few, and treatment effeciency is high, and operating cost is low.Two or more plasma flare can meet work
Skill requirement.
Hydrogen sulfide, the hydrogen chloride that purifier 4 is used in removing the synthesis gas discharged from plasma gasification reative cell 3 etc. is miscellaneous
Matter.There is purifier 4 synthesis gas entrance, decontaminating syngas to export, the synthesis of synthesis gas entrance and plasma gasification reative cell 3
Gas outlet is connected.
Methanation device 5 has decontaminating syngas entrance, mixed gas outlet and residual gas outlet, decontaminating syngas entrance
It is connected with the decontaminating syngas outlet of purifier 4.
Separator 6 has gaseous mixture entrance, methane outlet and residual gas outlet, gaseous mixture entrance and methanation device
5 mixed gas outlet is connected.
System shown in Fig. 1 also may not include methanation device 5 and separator 6, and synthesis gas can be otherwise utilized, such as makees
Directly burnt for fuel, but be made into methane, the economic value of product can be improved.
Coke quenching device 7 has pyrolytic carbon entrance, lime-ash outlet, quenching water inlet, pyrolytic carbon entrance and heat accumulating type rotating bed 2
Pyrolytic carbon outlet be connected.
Coke quenching device 7 is used to cool down pyrolytic carbon, in the system shown in Fig. 1, and quenching water inlet and the desiccation of coke quenching device 7 are filled
Put 1 drying water out and coolant outlet.It is arranged so as to effectively reduce the production cost of whole technique.
It should be noted that quenching water inlet can only with the drying water out or coolant outlet of desiccation apparatus 1
One is connected, it is not limited to the situation shown in Fig. 1.In addition, system also may not include coke quenching device 7, other modes can be used
Glassy state slag is cooled down.
In Fig. 1, plasma gasification reative cell 3 is arranged vertically on the pyrolysis gas mixture outlet of heat accumulating type rotating bed 2
Upper end, pyrolysis gas mixture is passed directly into plasma reative cell 3 without cooling, reduces the loss of heat, improves heat
Utilization rate.Certainly pyrolysis oil pneumatic transmission can also be entered in plasma gasification reative cell 3 by the way of heat insulation transportation.Similarly, it is whole
The transport of individual system storeroom all can be by the way of heat insulation transportation, it is possible to decrease process operation cost.
Contain more CO, H in synthesis gas2Deng combustible gas, and heat accumulation type radiant tube needs to provide heat for pyrolyzing sludge,
Therefore the synthesis gas can be used for heat accumulation type radiant tube combustion heat supplying, reduces process operation cost, reduce pollutant emission.
Certainly, heat accumulation type radiant tube also carries out heat production using electric energy, and this need not simultaneously be particularly limited to.
The utility model realizes the efficient combination of pyrolyzing sludge and gasification and melting, not only reduces operating cost, also carries
The high yield of synthesis gas, heat recovery rate is high, recycling level is high, product economy is profitable, do not produce bioxin, two
Secondary pollution is small.
Below with reference to specific embodiment, the utility model is illustrated.Institute's taking technique condition value in following embodiments
It is exemplary, its desirable number range is as shown in foregoing utility model content.Detection method used in following embodiments
It is the conventional detection method of the industry.
Embodiment 1
The present embodiment is handled sludge using the system shown in Fig. 1.Sludge used is certain municipal sewage plant
Sludge, as shown in table 1, specific handling process is as follows for its Industrial Analysis, elementary analysis：
By in the sludge feeding desiccation apparatus 1 of moisture content 88%, 47% drying water is produced, is left the dirt of 41% moisture content
Mud enters back into heat accumulating type rotating bed 2.Desiccation apparatus 1 uses hot water that sludge is dried for medium.In the heat accumulating type of dry section
The temperature of radiant tube is 400 DEG C, and the temperature of the heat accumulation type radiant tube of pyrolysis zone is 950 DEG C.Sludge in heat accumulating type rotating bed 2 according to
Pyrolysis burner hearth sidewall (pyrolysis water out) of the water from dry section end that be secondary to pass through the processes such as drying, pyrolytic gas making, finally obtaining
Outflow, into Sewage Disposal processing；It is pyrolyzed top (pyrolysis gas mixture outlet) of the gas mixture in pyrolysis zone end
Discharge, into plasma gasification reative cell 3；Pyrolytic carbon passes through spiral shell in the end bottom (pyrolytic carbon outlet) of heat accumulating type rotating bed 2
Conveying device discharge is revolved, is delivered in coke quenching device 7, the drying water and cooling water produced with desiccation apparatus 1 cools down pyrolytic carbon.Its
In, the temperature of plasma gasification reative cell is 1150 DEG C.The synthesis gas that plasma gasification reative cell 3 is produced is carried out at purification
Reason, to obtain pure CO, H2Deng synthesis gas.Finally synthesis gas is passed through in methanation device 5, methanation device 5 and contained
Nickel-base catalyst, at the same using separator 6 by residual gas the qualified discharge after purification.It is pyrolyzed the big portion of pyrolytic carbon produced
It is divided into mineral residue, is directly transported to landfill yard and is disposed.
The yield of synthesis gas is 50% (being pressed into stove butt), and the yield of pyrolytic carbon is 41% (being pressed into stove butt), final system
The yield that the methane obtained accounts for synthesis gas is 70%.
Embodiment 2
The present embodiment is handled sludge using the system shown in Fig. 1.Sludge used is certain municipal sewage plant
Sludge, as shown in table 1, specific handling process is as follows for its Industrial Analysis, elementary analysis：
By in the sludge feeding desiccation apparatus 1 of moisture content 85%, 45% drying water is produced, is left the dirt of 40% moisture content
Mud enters back into heat accumulating type rotating bed 2.Desiccation apparatus 1 uses hot water that sludge is dried for medium.In the heat accumulating type of dry section
The temperature of radiant tube is 400 DEG C, and the temperature of the heat accumulation type radiant tube of pyrolysis zone is 650 DEG C.Sludge in heat accumulating type rotating bed 2 according to
Pyrolysis burner hearth sidewall (pyrolysis water out) of the water from dry section end that be secondary to pass through the processes such as drying, pyrolytic gas making, finally obtaining
Outflow, into Sewage Disposal processing；It is pyrolyzed top (pyrolysis gas mixture outlet) of the gas mixture in pyrolysis zone end
Discharge, into plasma gasification reative cell 3；Pyrolytic carbon passes through spiral shell in the end bottom (pyrolytic carbon outlet) of heat accumulating type rotating bed 2
Conveying device discharge is revolved, is delivered in coke quenching device 7, the drying water and cooling water produced with desiccation apparatus 1 cools down pyrolytic carbon.Its
In, the temperature of plasma gasification reative cell is 1450 DEG C.The synthesis gas that plasma gasification reative cell 3 is produced is carried out at purification
Reason, to obtain pure CO, H2Deng synthesis gas.Finally synthesis gas is passed through in methanation device 5, methanation device 5 and contained
Nickel-base catalyst, at the same using separator 6 by residual gas the qualified discharge after purification.Pyrolytic carbon is largely inorganic matter
Residue, is directly transported to landfill yard and is disposed.
The yield of synthesis gas is 48% (being pressed into stove butt), and the yield of pyrolytic carbon is 36% (being pressed into stove butt), final system
The yield that the methane obtained accounts for synthesis gas is 65%.
The sludge industrial of table 1 is analyzed and elementary analysis
The yield of the obtained synthesis gas of embodiment 1 and embodiment 2 is more than 30%, and the yield of pyrolytic carbon is more than 25%.Heat
The yield of solution oil is much smaller than the pyrolysis oily yield of some sludge rotary kiln pyrogenation techniques.
In addition, the yield of methane is also higher, more than 60%, it is feasible to illustrate the technical solution of the utility model.
To sum up, the utility model is pyrolyzed using heat accumulating type rotating bed to the sludge after drying and other treatment, and utilize etc. from
Sub- gasification reactor chamber to pyrolysis gas mixture gasify, dry water, cooling water can as pyrolytic carbon quenching water, acquisition
Synthesis gas yield is high, calorific value is high, realize " innoxious, minimizing, the recycling " of sludge.
In addition, technique of the present utility model is simple, operating cost is low, recycling level high, secondary pollution is small, and it is easy to real
Now industrialization and scale.
In the technique that the utility model is provided, the low yield of pyrolysis oil, and the yield of synthesis gas is very high, will not occur pipeline
Block, equipment such as is corroded at the phenomenon, reduces production cost.
In further modified technique, methane has further been made in synthesis gas, the economic benefit of product is improved.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff can be carried out the feature of the not be the same as Example described in this specification or example and non-be the same as Example or example
With reference to and combination.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And the not restriction to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among the obvious changes or variations amplified out is still in protection domain of the present utility model.
Claims (5)
1. a kind of system of recycling sludge processing, it is characterised in that the system includes：
Desiccation apparatus, with sludge inlet, dewatered sludge outlet, dries water out, hot water inlet, coolant outlet；
Heat accumulating type rotating bed, with feed(raw material)inlet, pyrolysis water out, the outlet of pyrolysis gas mixture, pyrolytic carbon outlet, the original
Material entrance is connected with the dewatered sludge outlet of the desiccation apparatus；
Plasma gasification reative cell, with pyrolysis gas mixture entrance, syngas outlet, the pyrolysis gas mixture entrance
It is connected with the pyrolysis gas mixture outlet of the heat accumulating type rotating bed；And
Purifier, is exported, the synthesis gas entrance reacts with the plasma gasification with synthesis gas entrance, decontaminating syngas
The syngas outlet of room is connected.
2. system according to claim 1, it is characterised in that the system also includes：
Methanation device, with the outlet of decontaminating syngas entrance, mixed gas outlet and residual gas, the decontaminating syngas entrance
It is connected with the decontaminating syngas outlet of the purifier；And
Separator, with the outlet of gaseous mixture entrance, methane outlet and residual gas, the gaseous mixture entrance and the methanation
The mixed gas outlet of device is connected.
3. system according to claim 1, it is characterised in that the system also includes coke quenching device, the coke quenching device
With pyrolytic carbon entrance, lime-ash outlet, quenching water inlet, the pyrolytic carbon of the pyrolytic carbon entrance and the heat accumulating type rotating bed goes out
Mouth is connected.
4. system according to claim 3, it is characterised in that the quenching water inlet of the coke quenching device is filled with the desiccation
The drying water out and/or the coolant outlet of the desiccation apparatus put are connected.
5. system according to claim 1, it is characterised in that the heat accumulating type rotating bed includes dry section and pyrolysis zone；
The pyrolysis water out is arranged in the side wall of the dry section end, and the pyrolysis gas mixture outlet is arranged in the pyrolysis
The top of area end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376815.0U CN206408079U (en) | 2016-12-14 | 2016-12-14 | A kind of system of recycling sludge processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376815.0U CN206408079U (en) | 2016-12-14 | 2016-12-14 | A kind of system of recycling sludge processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206408079U true CN206408079U (en) | 2017-08-15 |
Family
ID=59550731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621376815.0U Expired - Fee Related CN206408079U (en) | 2016-12-14 | 2016-12-14 | A kind of system of recycling sludge processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206408079U (en) |
-
2016
- 2016-12-14 CN CN201621376815.0U patent/CN206408079U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sludge recycling system and method Effective date of registration: 20180327 Granted publication date: 20170815 Pledgee: Tianfeng Securities Co.,Ltd. Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000229 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20170815 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20170815 |
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| 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: 20170815 |