CN106520531A - Combined type biogas digester - Google Patents

Combined type biogas digester Download PDF

Info

Publication number
CN106520531A
CN106520531A CN201611004843.4A CN201611004843A CN106520531A CN 106520531 A CN106520531 A CN 106520531A CN 201611004843 A CN201611004843 A CN 201611004843A CN 106520531 A CN106520531 A CN 106520531A
Authority
CN
China
Prior art keywords
biogas
methane
generating pit
pond
valve
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.)
Granted
Application number
CN201611004843.4A
Other languages
Chinese (zh)
Other versions
CN106520531B (en
Inventor
龚容
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201611004843.4A priority Critical patent/CN106520531B/en
Publication of CN106520531A publication Critical patent/CN106520531A/en
Application granted granted Critical
Publication of CN106520531B publication Critical patent/CN106520531B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/58Reaction vessels connected in series or in parallel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses a combined type biogas digester, which comprises at least one pre-fermentation tank, at least one biogas residue storage tank and a plurality of groups of biogas digester groups. The biogas digester groups are formed by a plurality of biogas digesters; a feed pipe and a slag discharge pipe are connected to the bottom part of each biogas digester, and are connected onto a branch pipe through a first valve and a second valve; all branch pipes are connected onto the same main pipe; a machine pump is arranged on the main pipe; two ends of the main pipe are connected onto an inlet and an outlet of the machine pump through a third valve and a fourth valve; each pre-fermentation tank is connected onto a main pipe between the inlet of the machine pump and the third valve through a fifth valve through a pipeline; and each biogas residue storage tank is connected onto a main pipe between the outlet of the machine pump and the fourth valve through a sixth valve through a pipeline. The combined type biogas digester provided by the invention is scientific in design, high in operability, simple to manufacture, low in cost and convenient to maintain, and has no need for being repaired integrally due to partial failure just like other large-medium biogas digesters.

Description

Combined biogas pool
Technical field
The invention belongs to technical field of new energy utilization, and in particular to a kind of combined biogas pool.
Background technology
At present house refuse is broadly divided into two kinds of dry and wet, dry be for packaging in terms of paper, bag, glass, plastics, bubble Foam, thin film the like waste, if it can be directly to be classified recycle and reuse not to be dirty;Wet is mainly people and moves The Organic substances such as carbohydrate, protein in thing Excreta, and the easily putrid and deteriorated smelly generation pollution of these things, therefore Immediately just its sorting must be come what these wet refuses were produced, and specially focuses on as early as possible.Focus on best setting Standby is methane-generating pit, and methane-generating pit can produce the cheap energy biogas of cleaning in retting fermented organic.In addition, Organic substance retting ripening It is splendid agricultural organic fertilizer afterwards, to pollution administration, improves the ecological effect is significant of natural environment balance, achieve many things at one stroke.
The material for building methane-generating pit is generally cement concrete, and what is had also uses other materials, but cost is costly.Water Cement concrete is easier rising-heat contracting-cold to produce crack, serious all the more the fact that pond is bigger, directly influences biogas The quality and service life in pond.The liquid level crust of methane-generating pit is a methane-generating pit daily nursing difficult problem the most thorny, scale it is more big more It is prominent.The cleaning of biogas residue is also cumbersome thing, and past way is typically regular some months or 1 year clears up a natural pond Slag, obtains first to drain biogas slurry during operation and excavate again biogas residue, time-consuming to take a lot of work, it is necessary to select the receiving period of a large amount of crops.Separately Outward, biogas residue and biogas liquid it is clear it is complete after need to find enough raw materials in a short time and restart fermentation methane so that between biogas production occurs It is disconnected.Now many plants or the enterprise for having organic emission are all highly desirable to build large methane tank and follow excavating the energy Ring is environmentally friendly using implementing.
The content of the invention
Present invention aims to the problems referred to above of the prior art, there is provided a kind of easy to use, cheap, section The combined biogas pool of energy environmental protection, it is adaptable to build large-scale or even superhuge methane-generating pit.
For achieving the above object, present invention employs following technical scheme:
A kind of combined biogas pool, including at least one pre fermentation pond, at least one storage biogas residue pond and some groups of methane-generating pits Group;The methane-generating pit group is made up of multiple methane-generating pits, and the bottom of each methane-generating pit is connected to feed pipe and residue outlet;It is all of enter The first valves of Jing and the second valve are connected on arm respectively for expects pipe and residue outlet, and all of arm is connected on same house steward again; One pump is installed on house steward, the 3rd valves of Jing and the 4th valve are connected to the inlet and outlet of pump respectively for the two ends of house steward On;Each pre fermentation pond is connected on the house steward between pump import and the 3rd valve by the 5th valves of pipeline Jing;Each storage Biogas residue pond is connected on the house steward between pump outlet and the 4th valve by the 6th valves of pipeline Jing.
Above-mentioned methane-generating pit group is made up of multiple tangent circular methane-generating pits that misplace two-by-two, in three methane-generating pits tangent to each other Between be concrete component.
Above-mentioned methane-generating pit includes biogas slurry pond and the air storage chamber and the barrier being located inside air storage chamber communicated above biogas slurry pond; Biogas slurry pond inwall is provided with plastic body, and biogas slurry bottom of pond portion is inverted round table.
The bus of above-mentioned inverted round table and the angle of axle are 15 °~45 °.
The air storage chamber of the above-mentioned methane-generating pit positioned at outermost side is fixedly connected with push-pull bar, living between two neighboring air storage chamber It is dynamic to be connected with connecting rod.
Above-mentioned air storage chamber top is connected to biogas pipe, and all of biogas pipe is coupled with biogas arm, all of biogas Pipe is connected on same biogas house steward again.
Above-mentioned air storage chamber top is connected to rain pipe, and all of rain pipe is coupled with rainwater arm, all of rainwater Pipe is connected on same rainwater house steward again, and the water side of rainwater house steward is provided with vacuum pump.
Above-mentioned methane-generating pit is mounted on below ground, is located between two adjacent groups methane-generating pit group and is provided with an aisle on ground, Each arm is arranged on two side of aisle.
Above-mentioned methane tank bottom is inverted round table, and residue outlet connects with bottom of pond center, edge on feed pipe and inverted round table The tangent setting of methane-generating pit side wall.
Compared to prior art, advantage of the invention is that:
The combined biogas pool of the present invention is designed to multigroup methane-generating pit group, can be by region by the pump on house steward In order from each arm one by one to methane tank feeding and slagging tap, design science of the present invention, it is workable, be simple to manufacture, cost It is cheap, and keep in repair convenient, need not be as other big-and-middle-sized methane-generating pits because local fault entirely must be placed under repair.
Description of the drawings
Fig. 1 is the top view of methane-generating pit group in the present invention.
Fig. 2 is the sectional view of concrete component in Fig. 1.
Fig. 3 is schematic diagram of the present invention to A methane tank feedings.
Fig. 4 is the schematic diagram that the present invention slags tap to F methane-generating pits.
Fig. 5 is the structural representation of methane-generating pit in Fig. 1.
In figure:1. pre fermentation pond;11. the 5th valves;2. biogas residue pond is stored up;21. the 6th valves;3. methane-generating pit;31. chargings Pipe;311. first valves;32. residue outlets;321. second valves;33. biogas slurry ponds;34. air storage chambers;35. barriers;4. aisle;5. Arm;6. house steward;7. pump;8. concrete component.
Specific embodiment
With reference to embodiments and its accompanying drawing is further non-limitingly described in detail to technical solution of the present invention.
As shown in Figures 1 to 4, combined biogas pool includes 1, the storage biogas residue pond 2 in a pre fermentation pond and three groups of methane-generating pits Group, pre fermentation pond 1 and methane-generating pit group are located at below ground, and storage biogas residue pond 2 is located at two adjacent groups natural pond on ground, on ground An aisle 4 is provided between the group of gas pond, 4 both sides of aisle are the rectangle length hole of deep 2m, and it is interior that all methane-generating pit groups are placed in long hole; The methane-generating pit group is made up of multiple tangent circular methane-generating pits 3 that misplace two-by-two, is mixed between three methane-generating pits tangent to each other Solidifying soil component 8,8 1m above ground level of concrete component;The bottom of each methane-generating pit 3 is connected to feed pipe 31 and residue outlet 32, enters Expects pipe 31 and residue outlet 32 lead to 4 liang of aisle side, all of feed pipe 31 and difference the first valves of Jing of residue outlet 32 from underground Door 311 and the second valve 321 are connected on three arms 5, and the feed pipe 31 and residue outlet 32 of same group of methane-generating pit group both can be common It is connected on an arm, can be also connected on many arms, all of arm 5 is connected on same house steward 6 again, and each arm 5 is all provided with Put in 4 side of aisle;One pump 7 is installed on house steward 6, the two ends of house steward 6 are respectively through the 3rd valve 61 and the 4th valve 62 are connected in the inlet and outlet of pump 7;Pre fermentation pond 1 is connected to 7 import of pump and the 3rd valve by the 5th valves 11 of pipeline Jing On house steward 6 between door 61;Storage biogas residue pond 2 is connected to pump 7 by the 6th valves 21 of pipeline Jing and exports and the 4th valve 62 between House steward 6 on.
As shown in figure 5, methane-generating pit 3 include biogas slurry pond 33, with the air storage chamber 34 communicated above biogas slurry pond and be fixed on gas storage Barrier 35 inside room 34;33 inwall of biogas slurry pond is provided with plastic body, and 33 bottom of pond of biogas slurry pond is inverted round table, the inverted round table Bus is 15 ° with the angle of axle, and residue outlet 32 is connected with bottom of pond center, biogas slurry Chi Cebi on edge on feed pipe 31 and inverted round table Tangent setting;34 upper end of air storage chamber for being located most closely to the methane-generating pit of 4 side of aisle is fixedly connected with push-pull bar, two neighboring storage A connecting rod is connected between air chamber 34;34 top of air storage chamber is connected to biogas pipe, and all of biogas pipe is coupled with biogas On arm, the biogas pipe of same group of methane-generating pit group can be connected on a biogas arm jointly, can be also connected on many biogas arms, All of biogas arm is connected on same biogas house steward again;34 top of the air storage chamber is connected to rain pipe, all of rain pipe It is coupled with rainwater arm, the rain pipe of same group of methane-generating pit group can be connected on a rainwater arm jointly, can be also connected on many On root rainwater arm, all of rainwater arm is connected on same rainwater house steward again, and the water side of rainwater house steward is provided with vacuum Pump, for draining.
The operation principle of the present embodiment:
First divided some aisle to use as daily production operation during construction of marsh gas tank, aisle require it is straight and more long more Good, width is advisable with facilitating human users' walking;As the present embodiment is fed from pre fermentation pond using pump, mechanism intensity Greatly, the bus at inverted round table methane-generating pit bottom can be set to 15 ° with the angle of axle, and methane-generating pit bottom top edge is the circle of a high 20cm Ring, for cyclone mixing biogas slurry is produced during feed tube and biogas residue turn is allowed, the biogas slurry rotational delay when material is stopped, slowly to natural pond One centripetal force of slag advances bottom of pond center to be discharged in storage biogas residue pond from residue outlet biogas residue;Concrete component one is for occupying Space does not allow produced biogas to be revealed and pollutes;Two is to play a part of fixed air storage chamber and balance air storage chamber lifting;Walk Two side of road can be used to install arm, biogas arm and rainwater arm etc..The separately ground near the methane-generating pit group is needed according to production Under build several pre fermentation ponds, to methane-generating pit group in order press loop cycle feed;It is heavy for biogas residue that storage biogas residue pond is built on the ground Transport outward behind shallow lake;Pump on house steward is used to make the fluid in pipe flow by assigned direction.As shown in Figures 3 and 4, it is arranged on Arm on the side of every aisle is responsible for the charging of its place methane-generating pit group and is slagged tap, when charging is needed, the first valve of unlatching, 4th valve and the 5th valve, simultaneously close off the second valve, the 3rd valve and the 6th valve, then start pump, from pre fermentation Each methane-generating pit feed is given in pond one by one;When needing to slag tap, the second valve, the 3rd valve and the 6th valve are opened, be closed at the One valve, the 4th valve and the 5th valve, then start pump, are transported to biogas residue in storage biogas residue pond from each methane-generating pit one by one. In daily production, every arm to methane tank feeding or is slagged tap by region in order one by one according to the production schedule, feeds and slags tap Without the need for carrying out everyday, depending on cycle visual concrete practical situation, feeding and slag tap, and first feed and go out again at dusk in the morning Slag.Unavoidably when slagging tap to take the biogas slurry that discharged out of, this is left part of biogas slurry after biogas residue precipitation by visual practical situation more Amount is extracted into pre fermentation pond and does starter.Air storage chamber is fastened on the rod on concrete component by rope, can be played Locking air storage chamber does not allow effect which arbitrarily rotates, to avoid biogas pipe and rain pipe tangled up and knotted, when each biogas is finished, Make air storage chamber swing back and forth by swinging push-pull bar, then drive adjacent air storage chamber to swing back and forth together by connecting rod, so as to band Move the stirring scum silica frost of the barrier in each gas storage room and biogas slurry obscures acceleration aerogenesis.As the diameter of air storage chamber and barrier is generally 2.5 Rice or so, and weight is less, can carry out lifting maintenance by special pylon.
In sum, combined biogas pool of the invention is designed to multigroup methane-generating pit group, by the machine on house steward Pump to methane tank feeding and can be slagged tap from each arm in order one by one by region, design science of the present invention, workable, manufacture Simply, it is cheap, and keep in repair convenient, without the need for entirely being placed under repair as other big-and-middle-sized methane-generating pits.
It is pointed out that above-described embodiment technology design only to illustrate the invention and feature, its object is to allow ripe The personage for knowing technique will appreciate that present disclosure and implements according to this, can not limit the protection model of the present invention with this Enclose.All equivalence changes made according to spirit of the invention or modification, should all be included within the scope of the present invention.

Claims (9)

1. a kind of combined biogas pool, it is characterised in that:Including at least one pre fermentation pond, at least one storage biogas residue pond and some Group methane-generating pit group;The methane-generating pit group is made up of multiple methane-generating pits, and the bottom of each methane-generating pit is connected to feed pipe and residue outlet; The first valves of Jing and the second valve are connected on arm respectively for all of feed pipe and residue outlet, and all of arm is connected to same again On house steward;One pump is installed on house steward, the 3rd valves of Jing and the 4th valve are connected to the import of pump respectively for the two ends of house steward In outlet;Each pre fermentation pond is connected on the house steward between pump import and the 3rd valve by the 5th valves of pipeline Jing; Each storage biogas residue pond is connected on the house steward between pump outlet and the 4th valve by the 6th valves of pipeline Jing.
2. combined biogas pool according to claim 1, it is characterised in that:The methane-generating pit group is by multiple phases that misplace two-by-two The circular methane-generating pit composition cut, is concrete component between three methane-generating pits tangent to each other.
3. combined biogas pool according to claim 1 and 2, it is characterised in that:The methane-generating pit includes biogas slurry pond and natural pond The air storage chamber communicated above liquid pool and the barrier being fixed on inside air storage chamber;Biogas slurry pond inwall is provided with plastic body, biogas slurry bottom of pond Portion is inverted round table.
4. combined biogas pool according to claim 3, it is characterised in that:The bus of the inverted round table and the angle of axle For 15 °~45 °.
5. combined biogas pool according to claim 3, it is characterised in that:Positioned at the air storage chamber of the methane-generating pit of outermost side Upper end is fixedly connected with push-pull bar, and a connecting rod is connected between two neighboring air storage chamber.
6. combined biogas pool according to claim 3, it is characterised in that:The air storage chamber top is connected to biogas pipe, institute Some biogas pipes are coupled with biogas arm, and all of biogas arm is connected on same biogas house steward again.
7. combined biogas pool according to claim 3, it is characterised in that:The air storage chamber top is connected to rain pipe, institute Some rain pipes are coupled with rainwater arm, and all of rainwater arm is connected on same rainwater house steward again, rainwater house steward's Water side is provided with vacuum pump.
8. combined biogas pool according to claim 1 and 2, it is characterised in that:The methane-generating pit is mounted on below ground, It is located on ground between two adjacent groups methane-generating pit group and is provided with an aisle, each arm is arranged on two side of aisle.
9. combined biogas pool according to claim 1 and 2, it is characterised in that:The methane tank bottom is inverted round table, Residue outlet is connected with bottom of pond center, the tangent setting of methane-generating pit side wall on edge on feed pipe and inverted round table.
CN201611004843.4A 2016-11-15 2016-11-15 Combined biogas pool Active CN106520531B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611004843.4A CN106520531B (en) 2016-11-15 2016-11-15 Combined biogas pool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611004843.4A CN106520531B (en) 2016-11-15 2016-11-15 Combined biogas pool

Publications (2)

Publication Number Publication Date
CN106520531A true CN106520531A (en) 2017-03-22
CN106520531B CN106520531B (en) 2019-03-15

Family

ID=58351840

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611004843.4A Active CN106520531B (en) 2016-11-15 2016-11-15 Combined biogas pool

Country Status (1)

Country Link
CN (1) CN106520531B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10296292A (en) * 1997-04-30 1998-11-10 Meidensha Corp Method of combined treatment of methane fermentation, acetone-butanol fermentation, and petroleum-producing bacteria cultivation
CN2668630Y (en) * 2004-01-11 2005-01-05 许延贵 Comprehensive treatment apparatus for discharged feculence of toilet in town
CN2723442Y (en) * 2004-04-02 2005-09-07 罗元元 Integrated device for garbage sorting and mathane pool fertilizer making
JP2006167608A (en) * 2004-12-16 2006-06-29 Sumitomo Heavy Ind Ltd Fermentation method and apparatus by low-power agitation
CN2825645Y (en) * 2005-10-17 2006-10-11 侯祥甲 Combined tank type marsh gas and marsh liquid generator
CN101045901A (en) * 2007-03-02 2007-10-03 朱涛 Coupled methane tank
CN201485457U (en) * 2009-06-29 2010-05-26 杨山礼 Combined hydraulic network biomass pool
CN204111758U (en) * 2014-09-26 2015-01-21 江西晨明实业有限公司 The horizontal fermentation unit of biogas engineering central gas supply
CN105925465A (en) * 2016-04-28 2016-09-07 龚容 Anticorrosion antiseep anticrusting slag easy-removal methane tank

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10296292A (en) * 1997-04-30 1998-11-10 Meidensha Corp Method of combined treatment of methane fermentation, acetone-butanol fermentation, and petroleum-producing bacteria cultivation
CN2668630Y (en) * 2004-01-11 2005-01-05 许延贵 Comprehensive treatment apparatus for discharged feculence of toilet in town
CN2723442Y (en) * 2004-04-02 2005-09-07 罗元元 Integrated device for garbage sorting and mathane pool fertilizer making
JP2006167608A (en) * 2004-12-16 2006-06-29 Sumitomo Heavy Ind Ltd Fermentation method and apparatus by low-power agitation
CN2825645Y (en) * 2005-10-17 2006-10-11 侯祥甲 Combined tank type marsh gas and marsh liquid generator
CN101045901A (en) * 2007-03-02 2007-10-03 朱涛 Coupled methane tank
CN201485457U (en) * 2009-06-29 2010-05-26 杨山礼 Combined hydraulic network biomass pool
CN204111758U (en) * 2014-09-26 2015-01-21 江西晨明实业有限公司 The horizontal fermentation unit of biogas engineering central gas supply
CN105925465A (en) * 2016-04-28 2016-09-07 龚容 Anticorrosion antiseep anticrusting slag easy-removal methane tank

Also Published As

Publication number Publication date
CN106520531B (en) 2019-03-15

Similar Documents

Publication Publication Date Title
CN103289885B (en) Intestinal-tract type biogas generating system
CN104450501B (en) A kind of distributing life in the countryside waste resource utilization device and application thereof
CN102718355B (en) Breeding pollution discharge treatment system and treatment method thereof
CN106222074A (en) The dynamic anaerobic fermentation equipment of continuous way wet-and-dry two-stage
CN208586305U (en) A kind of garage type dry method fermentation methane system
CN102502956B (en) Municipal organic waste combined anaerobic treatment process and equipment
CN101250556A (en) Solid waste highly-effective anaerobic fermentation method
CN203360437U (en) Intestinal tract type methane generation system
CN204356328U (en) A kind of distributing life in the countryside waste resource utilization device
CN202087572U (en) Complete equipment used for resource recovery of kitchen garbage
CN103708674B (en) A kind of ductwork type ight soil and organic sewage refuse disposal installation
CN106520531A (en) Combined type biogas digester
CN102329721A (en) Garbage-sewage integrated fermentation biogas digester
CN104803715B (en) Excrement system fertilizer returning to the field system
CN105087655B (en) A kind of simple methane fermentation process and device
CN204625487U (en) Ight soil composting is field system also
CN101705180B (en) Floating cover type methane generation device
CN107008730A (en) Refuse disposal system and waste disposal method
CN203683316U (en) Pipeline-network type faeces, organic sewage and garbage treatment apparatus
CN202347008U (en) Sealless segmented uncovering type straw methane pool
CN105217913A (en) A kind of multiple stage circulation backflow methane-generating pit of impact type charging
CN201530824U (en) Floating cover type marsh gas generator
CN205188091U (en) Large capacity marsh gas night -soil bucket
CN208586294U (en) A kind of garage type dry method fermentation cabin
CN210711542U (en) Small-size domestic kitchen garbage anaerobic fermentation device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant