CN105836978B - A kind of wastewater treatment equipment of efficient process livestock breeding wastewater - Google Patents

A kind of wastewater treatment equipment of efficient process livestock breeding wastewater Download PDF

Info

Publication number
CN105836978B
CN105836978B CN201610427455.0A CN201610427455A CN105836978B CN 105836978 B CN105836978 B CN 105836978B CN 201610427455 A CN201610427455 A CN 201610427455A CN 105836978 B CN105836978 B CN 105836978B
Authority
CN
China
Prior art keywords
pond
mud
sedimentation basin
pool
basin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610427455.0A
Other languages
Chinese (zh)
Other versions
CN105836978A (en
Inventor
韩彪
宋红军
黄世友
赵伟
张维维
何俊贺
韦韩
邓清华
文丰玉
江春立
卢显健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scientific Research Academy of Guangxi Environmental Protection
Original Assignee
Scientific Research Academy of Guangxi Environmental Protection
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scientific Research Academy of Guangxi Environmental Protection filed Critical Scientific Research Academy of Guangxi Environmental Protection
Priority to CN201610427455.0A priority Critical patent/CN105836978B/en
Publication of CN105836978A publication Critical patent/CN105836978A/en
Application granted granted Critical
Publication of CN105836978B publication Critical patent/CN105836978B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/004Sludge detoxification
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1236Particular type of activated sludge installations
    • C02F3/1263Sequencing batch reactors [SBR]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2806Anaerobic processes using solid supports for microorganisms
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of wastewater treatment equipments of efficient process livestock breeding wastewater, belong to field of sewage treatment equipment, including gate shaft, grid pond, SBR treatment pool, separating sedimentation basin, anaerobic pond, mud concentration basin, mud sterilization pool, biological contact oxidation pond, sedimentation basin, ecological landscape pool and the disinfecting tank being arranged at sewage treatment scene by technique requirement;It is connected to by valve lock between gate shaft and grid pond, between grid pond and SBR treatment pool, between SBR treatment pool and separating sedimentation basin, is connected between separating sedimentation basin and anaerobic pond, between anaerobic pond and mud concentration basin by spoil disposal pump line;Mud concentration basin is connect with mud sterilization pool by rotating mud conveyer.

Description

A kind of wastewater treatment equipment of efficient process livestock breeding wastewater
Technical field
The present invention relates to environmental protection installations, and in particular to a kind of wastewater treatment dress of efficient process livestock breeding wastewater It sets.
Background technique
With the fast development of collectivization livestock and poultry breeding industry, livestock breeding wastewater pollution problem is increasingly prominent.Livestock and poultry cultivation The waste water not only COD containing high concentration and nitrogen phosphorus, it is serious to pollute surrounding body environment and (such as sulfamido, big containing antibiotic Cyclic lactone class, Tetracyclines and fluoroquinolones) dirt with the low concentrations such as heavy metal (copper, arsenic, zinc, lead and nickel etc.) high harm Object is contaminated, constitutes huge potential threat to human health.But due to technology, economy etc., the most of intensive poultrys in China Fowl breeding wastewater is not dealt carefully with, and ecological environment and human health is made to be faced with formidable challenges.Intensive livestock and poultry cultivation The integrated treatment of waste water is imperative.
Currently, the domestic process flow for livestock breeding wastewater processing is roughly the same, i.e. separation of solid and liquid-anaerobic digestion- Aerobic Process for Treatment.But for China is in the cultivation industry of meagre profit operation, throwing needed for building such waste water disposal facility Money is too big, and operating cost is excessively high, and it is sluggish that these defects promote the construction of the wastewater treatment in the sector.Therefore, facility is sought Small investment, operating cost are low and handle efficient aquaculture wastewater treatment method, it has also become solve the crucial institute of aquaculture pollution ?.
Summary of the invention
The present invention need to be to solve existing livestock breeding wastewater complex treatment process and the high problem of cost, provide one kind The wastewater treatment equipment of efficient process livestock breeding wastewater.
A kind of wastewater treatment equipment of efficient process livestock breeding wastewater, is included in sewage treatment scene and sets by technique requirement Gate shaft, grid pond, SBR treatment pool, separating sedimentation basin, anaerobic pond, mud concentration basin, the mud sterilization pool, biological set Oxidation pond, sedimentation basin, ecological landscape pool and disinfecting tank;
Between the gate shaft and grid pond, between the grid pond and SBR treatment pool, the SBR processing pond with separate Be connected to by valve lock between sedimentation basin, between the separating sedimentation basin and anaerobic pond, the anaerobic pond and mud concentration basin it Between be connected to by spoil disposal pump line;The mud concentration basin is connect with mud sterilization pool by rotating mud conveyer;The biology Between contact-oxidation pool and sedimentation basin, between the sedimentation basin and ecological landscape pool, the ecological landscape pool and disinfecting tank Between pass through the overflow port connection on adjacent pool wall;Pass through drainpipe between the separating sedimentation basin and biological contact oxidation pond Connection, mud concentration basin are connected to separating sedimentation basin by muddy water reflux pump line;Pass through between the sedimentation basin and separating sedimentation basin Mixed liquor reflux pump line connection.
In above scheme, preferably biological contact oxidation pond bottom is equipped with compressed air line, compressed air hose road Offer evenly spaced venthole.
In above scheme, preferably one machinery rotation formula trash of the tilted installation of grid pond is to remove in sewage Sundries is floated, the machinery rotation formula trash is made of one group of revolution chain that rake teeth is assembled into.
In above scheme, preferably mud concentration basin is divided into two layers, and centre is separated with the partition with through-hole, in bottom Equipped with muddy water reflux pump.
In above scheme, preferably mud concentration basin is fully buried reinforced concrete structure, top reinforced concrete plate Encapsulation process.
Beneficial effects of the present invention:
1, the wastewater treatment equipment of a kind of efficient process livestock breeding wastewater provided by the invention, simplifies structure, system Operation, maintenance are more simple, have saved investment, have reduced energy consumption, to substantially reduce operating cost;
2, the present invention has processing speed fast, can handle a large amount of livestock breeding wastewater in a short time, can expire very well The demand of many livestock and poultry farms of foot;
3, the most structure of the present invention is built using reinforced concrete, has the advantages that cheap, can be expired very well The needs of sufficient livestock and poultry farm development.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the present invention.
Figure number mark: 1, gate shaft;2, grid pond;3, SBR treatment pool;4, separating sedimentation basin;5, anaerobic pond;6, mud Concentration basin;7, mud sterilization pool;8, biological contact oxidation pond;9, sedimentation basin;10, ecological landscape pool;11, disinfecting tank;12, Sewage pipe;13, leak-off pipe;14, machinery rotation formula trash;15, valve lock;16, drainpipe;17, sludge pump;18, sludge pump Pipe;19, muddy water reflux pump line;20, compressed air line;21, mixed liquor reflux pump line;22, mud conveyer is rotated.
Specific embodiment
Illustrated embodiment is described further technical solution of the present invention with reference to the accompanying drawing.
A kind of wastewater treatment equipment of efficient process livestock breeding wastewater, is included in sewage treatment scene and sets by technique requirement Gate shaft 1, grid pond 2, SBR treatment pool 3, separating sedimentation basin 4, anaerobic pond 5, mud concentration basin 6, the mud sterilization pool 7, life set Object contact-oxidation pool 8, sedimentation basin 9, ecological landscape pool 10 and disinfecting tank 11, as shown in Figure 1.
Between the gate shaft 1 and grid pond 2, between the grid pond 2 and SBR treatment pool 3, the SBR treatment pool 3 with Between separating sedimentation basin 4 by valve lock 15 be connected to, between the separating sedimentation basin 4 and anaerobic pond 5, the anaerobic pond 5 and become silted up It is connected between mud thickener 6 by spoil disposal pump line 18;The mud concentration basin 6 passes through rotation mud transmission with mud sterilization pool 7 Machine 22 connects;Between the biological contact oxidation pond 8 and sedimentation basin 9, between the sedimentation basin 9 and ecological landscape pool 10, it is described It is connected to by the overflow port on adjacent pool wall between ecological landscape pool 10 and disinfecting tank 11;The separating sedimentation basin 4 with It is connected between biological contact oxidation pond 8 by drainpipe 16, mud concentration basin 6 is connected to precipitation and separation by muddy water reflux pump line 19 Pond 4;It is connected between the sedimentation basin 9 and separating sedimentation basin 4 by mixed liquor reflux pump line 21.
Gate shaft 1 is semi-buried reinforced concrete structure, and pond body passes through sewage pipe having a size of 2m × 2m × 3.5m, sewage 12 flow into gate shaft 1, are equipped with valve lock 15 in gate shaft 1 and carry out the conducting between regulating gate well 1 and grid pond 2, gate shaft 1 On the one hand effect adjusts control inflow according to the water level in grid pond 2, guarantee that setting pot stabilization works under ordinary water level, It is not in the case where desire out, on the other hand when rainy season inflow excess or Sewage Disposal are because of emergency repair, by direct Leak-off pipe 13 is connect directly to drain the combined sewage of excess into gutter, as shown in Figure 1.
Semi-buried reinforced concrete structure of the grid pond 2 for inside equipped with fine fack, pond body size 3.5m × 0.5m × Valve lock 15 is equally arranged to control the conducting between grid pond 2 and SBR treatment pool 3, in order to ensure subsequent work in grid pond 2 in 3.1m The normal operation of skill, 2 tilted 65 ° of grid pond installations, one machinery rotation formula trash 14 are miscellaneous to remove the floating in sewage Object, the machinery rotation formula trash 14 is made of one group of revolution chain that rake teeth is assembled into, under the transmission of motor reducer, warp Sprocket wheel transmission makes rake teeth revolution operation, continuously separates solid suspension matter of various shapes in liquid from liquid, reaches To purpose is separated by solid-liquid separation, as shown in Figure 1.
Separating sedimentation basin 4 is semi-buried reinforced concrete structure, and pond body is having a size of 2m × 2m × 3.5m.It is mainly used for Separation mud and waste liquid, mud can be discharged in anaerobic pond 5 by spoil disposal pump line 18, and waste liquid is discharged to biology by the extraction of drainpipe 16 and connects It touches in oxidation pond 8, as shown in Figure 1.
The outer dimension of anaerobic pond 5 is 3.0m × 2.4m × 5.0m, and the major function of anaerobic pond 5 is release phosphorus, simultaneously will Partial organic substances carry out ammonification, and biologic packing material is arranged in pond, as bacteria carrier, retain enough micro- lifes for carrying out biochemical process Object amount, the mud handled through anaerobic pond 5 are discharged in mud concentration basin 6 by spoil disposal pump line 18, as shown in Figure 1.
Mud concentration basin 6 is that the reinforced concrete structure on ground makes mainly to the further dehydration of the mud with water Mud is dried.It is two layers that mud concentration basin 6, which divides, and centre is separated with the partition with through-hole, is flowed back in bottom equipped with muddy water Pump.Compressor and air-dry machine are mainly provided in it, the mud after dehydration can be routed directly to fertilizer plant or take To plant crops etc..
Mud sterilization pool 7 mainly realizes the disinfection of mud, prevents due to containing other more microbial destruction environment.
The outer dimension of biological contact oxidation pond 8 is 2.2m × 5.1m × 5.0m, and 8 bottom of biological contact oxidation pond is equipped with Compressed air line 20, compressed air hose road offer evenly spaced venthole, are aerated by compressed air line, The solution for being can come into full contact with air, realize aerobic connect.Biological contact oxidation pond 8 is connected to by overflow port with sedimentation basin 9, As shown in Figure 1.
The outer dimension of sedimentation basin 9 is 1.6m × 1.6m × 4.0m (2), and function is what precipitation process corruption fell off Biomembrane is equipped with inclined tube filler inside sedimentation basin 9, and feature is that wetted perimeter is big, hydraulic radius is small, and laminar condition is good, particle sedimentation It is not interfered by turbulent flow, processing capacity is 3~5 times of conventional precipitation, sedimentation basin 9 bottom of the sludge settling below inclined tube filler Portion, water layer are in 9 top of sedimentation basin above inclined tube filler, and 9 bottom of sedimentation basin is equipped with mixed liquor reflux pump line 21, passes through mixing The sludge lifting to precipitate is delivered to separating sedimentation basin 4 by liquid reflux pump line 21.Sedimentation basin 9 passes through overflow port and ecological landscape It sees pond 10 to be connected to, as shown in Figure 1.
The outer dimension of ecological landscape pool 10 is 7.0m × 4.6m × 1.5m, the planting plants in ecological landscape pool 10, benefit With the growth of plant, reinforce the Nitrogen/Phosphorus Removal of sewage, passes through pipeline through treated the purified water of ecological landscape pool 10 and flow into In disinfecting tank 11, as shown in Figure 1.
The outer dimension of disinfecting tank 11 is 3.3m × 1.0m × 1.5m, interior using solid chlorine tablets contact sterilizing mode Supply device is quantified equipped with chlorine tablets, dose dispensing is changed according to the situation of change of processing water automatically, after the processing of disinfecting tank 11 Purified water up to standard is discharged in environment from sewage pipe, as shown in Figure 1.
The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to implement Example, those skilled in the art can also make various equivalent on the premise of not violating the inventive spirit of the present invention Variation or replacement, these equivalent variation or replacement are all contained in scope of the present application.

Claims (5)

1. a kind of wastewater treatment equipment of efficient process livestock breeding wastewater, it is characterised in that: be included in sewage treatment scene by Technique requires gate shaft (1), grid pond (2), SBR treatment pool (3), separating sedimentation basin (4), anaerobic pond (5), the mud of setting dense Contracting pond (6), mud sterilization pool (7), biological contact oxidation pond (8), sedimentation basin (9), ecological landscape pool (10) and disinfecting tank (11);
Between the gate shaft (1) and grid pond (2), between the grid pond (2) and SBR treatment pool (3), the SBR processing It is connected to by valve lock (15) between pond (3) and separating sedimentation basin (4), between the separating sedimentation basin (4) and anaerobic pond (5), It is connected between the anaerobic pond (5) and mud concentration basin (6) by spoil disposal pump line (18);The mud concentration basin (6) and mud Sterilization pool (7) passes through rotation mud conveyer (22) connection;Between the biological contact oxidation pond (8) and sedimentation basin (9), it is described Pass through phase between sedimentation basin (9) and ecological landscape pool (10), between the ecological landscape pool (10) and disinfecting tank (11) Overflow port connection on adjacent pool wall;Between the separating sedimentation basin (4) and biological contact oxidation pond (8) even by drainpipe (16) Logical, mud concentration basin (6) passes through muddy water reflux pump line (19) connection separating sedimentation basin (4);The sedimentation basin (9) and precipitation and separation Pass through mixed liquor reflux pump line (21) connection between pond (4).
2. a kind of wastewater treatment equipment of efficient process livestock breeding wastewater according to claim 1, it is characterised in that: institute Biological contact oxidation pond (8) bottom is stated equipped with compressed air line (20), compressed air line offers uniform intervals on (20) Venthole.
3. a kind of wastewater treatment equipment of efficient process livestock breeding wastewater according to claim 1, it is characterised in that: institute Grid pond (2) one machinery rotation formula trash (14) of tilted installation is stated to remove the floating sundries in sewage, the machinery Rotary type trash cleaning device (14) is made of one group of revolution chain that rake teeth is assembled into.
4. a kind of wastewater treatment equipment of efficient process livestock breeding wastewater according to claim 1, it is characterised in that: institute It states mud concentration basin (6) to be divided into two layers, centre is separated with the partition with through-hole, and muddy water reflux pump is housed in bottom.
5. a kind of wastewater treatment equipment of efficient process livestock breeding wastewater according to claim 1, it is characterised in that: institute Stating mud concentration basin (6) is fully buried reinforced concrete structure, top reinforced concrete plate encapsulation process.
CN201610427455.0A 2016-06-16 2016-06-16 A kind of wastewater treatment equipment of efficient process livestock breeding wastewater Expired - Fee Related CN105836978B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610427455.0A CN105836978B (en) 2016-06-16 2016-06-16 A kind of wastewater treatment equipment of efficient process livestock breeding wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610427455.0A CN105836978B (en) 2016-06-16 2016-06-16 A kind of wastewater treatment equipment of efficient process livestock breeding wastewater

Publications (2)

Publication Number Publication Date
CN105836978A CN105836978A (en) 2016-08-10
CN105836978B true CN105836978B (en) 2018-12-11

Family

ID=56576973

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610427455.0A Expired - Fee Related CN105836978B (en) 2016-06-16 2016-06-16 A kind of wastewater treatment equipment of efficient process livestock breeding wastewater

Country Status (1)

Country Link
CN (1) CN105836978B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203715451U (en) * 2014-01-21 2014-07-16 贵州澳源环保科技有限公司 Sewage treatment system for livestock farm
CN104973727A (en) * 2015-05-07 2015-10-14 广西壮族自治区环境保护科学研究院 Integrated sewage treatment facilities
CN205773947U (en) * 2016-06-16 2016-12-07 广西壮族自治区环境保护科学研究院 A kind of wastewater treatment equipment of efficient process livestock breeding wastewater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203715451U (en) * 2014-01-21 2014-07-16 贵州澳源环保科技有限公司 Sewage treatment system for livestock farm
CN104973727A (en) * 2015-05-07 2015-10-14 广西壮族自治区环境保护科学研究院 Integrated sewage treatment facilities
CN205773947U (en) * 2016-06-16 2016-12-07 广西壮族自治区环境保护科学研究院 A kind of wastewater treatment equipment of efficient process livestock breeding wastewater

Also Published As

Publication number Publication date
CN105836978A (en) 2016-08-10

Similar Documents

Publication Publication Date Title
CN101544447B (en) Technique for purifying organic sewage through bio-precipitation and purification method
CN104710078A (en) Underground integrated domestic sewage treatment device and method thereof
CN209835909U (en) Rural domestic sewage treatment system of formula of burying integration
CN107473471A (en) A kind of sewage purifying and treating device
CN103613245A (en) Treatment process for waste water in neuropeptide product production
CN103613240A (en) Multi-stage ecological sewage purification treatment device and method
CN104973727A (en) Integrated sewage treatment facilities
CN102976809B (en) Planetary type full-automatic sludge aerobic fermentation device and system
CN105330096A (en) External full-flow deodorizing system for sewage processing and application
CN205773947U (en) A kind of wastewater treatment equipment of efficient process livestock breeding wastewater
CN107522369A (en) A kind of raising sewage disposal process
CN105836978B (en) A kind of wastewater treatment equipment of efficient process livestock breeding wastewater
CN109592839A (en) A kind of wastewater treatment equipment of efficient process livestock breeding wastewater
CN205773946U (en) For advanced sewage treatment system
CN204509052U (en) Novel micro-power sewage treatment unit
CN208995346U (en) A kind of liquid dung of pig farm processing system
CN103011415B (en) Simple water treatment and recovery device for large-size wetland
CN206799387U (en) Total closed type green ecological circulating sewage processing system
CN207811366U (en) A kind of sewage disposal system
CN207734705U (en) A kind of separating and filtering system for livestock and poultry cultivation liquid dung
CN206799388U (en) Container-type variable volume integrated effluent disposal system
CN206783470U (en) The agriculture up to standard of food production processing industry waste water, sanitary sewage fills recycling treatment system
CN105884143B (en) For advanced sewage treatment system
CN206467112U (en) Ecology microkinetic livestock and poultry waste water control integrated apparatus
CN206447726U (en) A kind of Production of Livestock and Poultry wastewater treatment equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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: 20181211

Termination date: 20210616