CN202744431U - Combined-use anaerobic fermentation reactor - Google Patents
Combined-use anaerobic fermentation reactor Download PDFInfo
- Publication number
- CN202744431U CN202744431U CN2012204663043U CN201220466304U CN202744431U CN 202744431 U CN202744431 U CN 202744431U CN 2012204663043 U CN2012204663043 U CN 2012204663043U CN 201220466304 U CN201220466304 U CN 201220466304U CN 202744431 U CN202744431 U CN 202744431U
- Authority
- CN
- China
- Prior art keywords
- internal layer
- anaerobic
- layer cylindrical
- outer cylindrical
- cylindrical tube
- 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
Images
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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a combined-use anaerobic fermentation reactor and relates to fermentation reactors. The combined-use anaerobic fermentation reactor is used for solving the problems of the existing independent-use reactor that the gas yield is low, the requirements on high-efficiency heat energy recovery cannot be met, the digestion is incomplete, and subsequent treatments are required to be added. An internal cavity of an inner-layer cylindrical barrel serves as a primary anaerobic chamber; a cavity body between the inner-layer cylindrical barrel and an outer-layer cylindrical barrel serves as a secondary anaerobic chamber; a first heating pipe is laid in a wall body of the inner-layer cylindrical barrel; a second heating pipe is laid in a wall body of the outer-layer cylindrical barrel; a blocking plate, a plurality of first baffles and a plurality of second baffles are uniformly distributed along the circumference of the secondary anaerobic chamber; the two ends of the blocking plate are respectively connected with the inner-layer cylindrical barrel and the outer-layer cylindrical barrel; gaps are formed between the first baffles and the internal wall of the outer-layer cylindrical barrel; gaps are formed between the second baffles and the external wall of the inner-layer cylindrical barrel; two overflow valves are respectively located at the two sides of the blocking plate; and one end of an acid regulating pipe is arranged in the primary anaerobic chamber, and the other end of the acid regulating pipe is led outside the outer-layer cylindrical barrel. The combined-use anaerobic fermentation reactor is applied to the anaerobic fermentation of large-scale methane projects.
Description
Technical field
The utility model relates to a kind of fermentation reactor, is specifically related to a kind of anaerobic fermentation reactor.
Background technology
Biogas engineering is take anaerobic digestion as core technology, integrates the systems engineering of the fertile recycling in ight soil processing, biogas production, biogas and natural pond.But owing to technical reason, there are the shortcomings such as the fermentation raw material utilization is not thorough, gas producing efficiency is low, comprehensive treatment effect is bad in many large-sized biogas engineerings.This is also invisible, and to have aggravated subsequent treatment process more loaded down with trivial details, increases cost.Although country has put into effect the big-and-middle-sized biogas engineering of many supports on policy, do not obtain for above-mentioned reasons good effect.Dirty for excrement, anaerobism, aerobic combination technique are universally acknowledged effective treating methods, and for this combination process, just anaerobic stages is not as there being fermentation thoroughly can increase the intractability of subsequent technique.The present anaerobic stages comparatively reactor types of moulding is full-mixing type anaerobic fermentation reactor, upflow anaerobic sludge blanket process (UASB) reactor and anaerobic baffled reactor, and these several reactors are independent use, and exist fermentation raw material to utilize halfway shortcoming, do not reach fermentation raw material in the efficient requirement that utilizes of anaerobic stages, thereby increased intractability and the cost of subsequent technique.
The utility model content
The purpose of this utility model is low for solving the existing reactor factor of created gase that uses separately, can not satisfy the technical barrier of heat energy high efficiente callback, the reactor digestion of using separately simultaneously is not thorough, needs to increase the problem of subsequent disposal, and a kind of anaerobic fermentation reactor of uniting use is provided.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises the internal layer cylindrical drum, outer cylindrical tube, the first heating tube, the second heating tube, cover, at the bottom of the tank, the 3rd heating tube, feed-pipe, the acid adjustment pipe, baffle plate, two agitators, two surplus valves, two pH value sensors, two temperature sensors, several first traverse baffles and several second traverse baffles, the internal layer cylindrical drum is arranged in the outer cylindrical tube, End Pieces are separately positioned on the place, upper and lower end face of outer cylindrical tube, the internal layer cylindrical drum, outer cylindrical tube, End Pieces are concrete masonry units and form, the inner chamber of internal layer cylindrical drum is an anaerobic cavity, cavity between internal layer cylindrical drum and the outer cylindrical tube is the secondary anaerobic cavity, the first heating tube is built by laying bricks or stones in the body of wall of internal layer cylindrical drum, the second heating tube is built by laying bricks or stones in the body of wall of outer cylindrical tube, all build the 3rd heating tube by laying bricks or stones in the body of wall at the bottom of tank corresponding to anaerobic cavity and secondary anaerobic cavity, two agitators all are arranged in anaerobic cavity, and on two agitators, lower setting, one end of feed-pipe be arranged in anaerobic cavity and be positioned at the below agitator below, the other end of feed-pipe passes to the outer cylindrical tube outside, baffle plate, several first traverse baffles and several second traverse baffles are along the circumference uniform distribution setting of secondary anaerobic cavity, and an end of baffle plate is connected with the outer wall of internal layer cylindrical drum, the other end of baffle plate is connected with the inwall of outer cylindrical tube, several first traverse baffles and several the second traverse baffles are arranged alternately, and an end of the first traverse baffle is connected with the outer wall of internal layer cylindrical drum, the other end of the first traverse baffle and the inwall of outer cylindrical tube are provided with the slit, one end of the second traverse baffle is connected with the inwall of outer cylindrical tube, the outer wall of the other end of the second traverse baffle and internal layer cylindrical drum is provided with the slit, the sidewall below of internal layer cylindrical drum is provided with the internal layer overflow weir, the sidewall top of outer cylindrical tube is provided with outer overflow weir, internal layer overflow weir and internal layer overflow weir lay respectively at the both sides of baffle plate, two surplus valves are installed in respectively internal layer overflow weir and outer overflow weir place, one end of acid adjustment pipe is arranged in anaerobic cavity and is positioned at the top of internal layer cylindrical drum, the other end of acid adjustment pipe passes to the outer cylindrical tube outside, be respectively equipped with an anaerobic methane outlet and the outlet of secondary anaerobic methane on the cover, an anaerobic methane outlet communicates with an anaerobic cavity, the outlet of secondary anaerobic methane communicates with the secondary anaerobic cavity, by pipeline a pH value sensor and a temperature sensor are installed respectively on the sidewall of internal layer cylindrical drum, outer cylindrical tube divides on other sidewall and by pipeline a pH value sensor and a temperature sensor is installed respectively.
Compared with the prior art the utility model has following beneficial effect:
One, because the utility model is provided with anaerobic cavity I and secondary anaerobic cavity II, has dual anaerobically fermenting function, and the path of secondary anaerobic cavity II is deflector type, Digestive system is at secondary anaerobic cavity II long reaction time, so that anaerobic treatment is thorough, do not need the processing of subsequent technique just can reach the thoroughly purpose of fermenting, reduced processing cost, avoided secondary pollution; All built heating tube by laying bricks or stones in the body of wall at the bottom of internal layer cylindrical drum of the present utility model, outer cylindrical tube and the tank, so that reactor insulating efficiency of the present utility model is high, factor of created gase is high, the utilising efficiency of fermentation raw material high, energy recovery efficient is high.
Two, twice anaerobic process all carried out in a single unit system, therefore, the utlity model has that floor space is few, little characteristics take up room.
Three, adopt the circulating-heating pattern, utilize the generator waste heat to heat, reduced calorific loss.
Four, simple in structure, the movement-less part of the utility model, working cost are low.
Description of drawings
Fig. 1 is one-piece construction master's sectional view of uniting the anaerobic fermentation reactor of use of the present utility model; Fig. 2 is the vertical view (removing cover 5) of Fig. 1.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, present embodiment comprises internal layer cylindrical drum 1, outer cylindrical tube 2, the first heating tube 3, the second heating tube 4, cover 5, at the bottom of the tank 6, the 3rd heating tube 7, feed-pipe 8, acid adjustment pipe 9, baffle plate 15, two agitators 11, two surplus valves 12, two pH value sensors 13, two temperature sensors 14, several the first traverse baffle 16 and several second traverse baffles 17, internal layer cylindrical drum 1 is arranged in the outer cylindrical tube 2, internal layer cylindrical drum 1 is identical with the height of outer cylindrical tube 2,6 upper and lower end faces that are separately positioned on outer cylindrical tube 2 are located at the bottom of cover 5 and the tank, internal layer cylindrical drum 1, outer cylindrical tube 2,6 are concrete masonry units and form at the bottom of cover 5 and the tank, the inner chamber of internal layer cylindrical drum 1 is an anaerobic cavity I, cavity between internal layer cylindrical drum 1 and the outer cylindrical tube 2 is secondary anaerobic cavity II, the first heating tube 3 is built by laying bricks or stones in the body of wall of internal layer cylindrical drum 1, the first heating tube 3 is along the circumference of internal layer cylindrical drum 1, the second heating tube 4 is built by laying bricks or stones in the body of wall of outer cylindrical tube 2, the second heating tube 4 is along the circumference of outer cylindrical tube 2, all build the 3rd heating tube 7 by laying bricks or stones in 6 bodies of wall at the bottom of tank corresponding to anaerobic cavity I and secondary anaerobic cavity II, two agitators 11 all are arranged among anaerobic cavity I, and on two agitators 11, lower setting, one end of feed-pipe 8 be arranged among anaerobic cavity I and be positioned at below agitator 11 below, the other end of feed-pipe 8 passes to outer cylindrical tube 2 outsides, baffle plate 15, several the first traverse baffles 16 and several second traverse baffles 17 are along the circumference uniform distribution setting of secondary anaerobic cavity II, and an end of baffle plate 15 is connected with the outer wall of internal layer cylindrical drum 1, the other end of baffle plate 15 is connected with the inwall of outer cylindrical tube 2, several first traverse baffles 16 are arranged alternately with several second traverse baffles 17, and an end of the first traverse baffle 16 is connected with the outer wall of internal layer cylindrical drum 1, the inwall of the other end of the first traverse baffle 16 and outer cylindrical tube 2 is provided with slit t, one end of the second traverse baffle 17 is connected with the inwall of outer cylindrical tube 2, the outer wall of the other end of the second traverse baffle 17 and internal layer cylindrical drum 1 is provided with slit t, the sidewall below of internal layer cylindrical drum 1 is provided with internal layer overflow weir 1-1, the sidewall top of outer cylindrical tube 2 is provided with outer overflow weir 2-1, internal layer overflow weir 1-1 and internal layer overflow weir 1-1 lay respectively at the both sides of baffle plate 15, two surplus valves 12 are installed in respectively internal layer overflow weir 1-1 and outer overflow weir 2-1 place, one end of acid adjustment pipe 9 is arranged among anaerobic cavity I and is positioned at the top of internal layer cylindrical drum 1, the other end of acid adjustment pipe 9 passes to outer cylindrical tube 2 outsides, can carry out the soda acid regulation and control by acid adjustment pipe 9 as required; Be respectively equipped with an anaerobic methane on the cover 5 and export 5-1 and secondary anaerobic methane outlet 5-2, one time anaerobic methane outlet 5-1 communicates with an anaerobic cavity I, secondary anaerobic methane outlet 5-2 communicates with secondary anaerobic cavity II, by pipeline a pH value sensor 13 and a temperature sensor 14 are installed respectively on the sidewall of internal layer cylindrical drum 1, outer cylindrical tube was equipped with a pH value sensor 13 and a temperature sensor 14 by pipeline respectively on other sidewall in 2 minutes.Flow through in the first heating tube 3, the second heating tube 4 and the 3rd heating tube 7 liquid of generator waste-heat.One time the interior temperature of anaerobic cavity I detects by the temperature sensor 14 on internal layer cylindrical drum 1 sidewall; Temperature in the secondary anaerobic cavity II detects by the temperature sensor 14 on outer cylindrical tube 2 sidewalls; One time the interior material liquid pH value of anaerobic cavity I is monitored by the pH value sensor 13 on internal layer cylindrical drum 1 sidewall; Material liquid pH value in the secondary anaerobic cavity II is monitored by the pH value sensor 13 on outer cylindrical tube 2 sidewalls.Because the special property of biogas is considered safety factors, the first heating tube 3, the second heating tube 4, the 3rd heating tube 7, feed-pipe 8, acid adjustment pipe 9, two surplus valves 12, pH value sensor 13 and two temperature sensors 14 all adopt explosion proof ratings.The first heating tube 3, the second heating tube 4, the 3rd heating tube 7, feed-pipe 8, acid adjustment pipe 9, two agitators 11, two surplus valves 12, pH value sensor 13 and two temperature sensors 14 all adopt the PLC system automatically to control.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the cover 5 corresponding to an anaerobic cavity I of present embodiment is provided with anaerobism viewing window 5-3 one time, and the top of outer cylindrical tube 2 sidewalls is provided with secondary anaerobism viewing window 2-2.But the treated state by anaerobic cavity I of viewing window Real Time Observation and secondary anaerobic cavity II inside.Other composition and annexation are identical with embodiment one.
Principle of work of the present utility model:
The excrement material is in feed-pipe 8 enters anaerobic cavity I, the excrement material stirs through two agitators 11 and carries out anaerobic digestion, one time the interior temperature of reaction of anaerobic cavity I is 55 ℃ ± 1 ℃, the excrement material is Digestive system after the anaerobic digestion reaction in anaerobic cavity I, the surplus valve 12 of Digestive system on internal layer cylindrical drum 1 flows among the secondary anaerobic cavity II, Digestive system flow through successively several first traverse baffles 16 and several second traverse baffles 17, and carry out anaerobic baffled reaction, temperature of reaction among the secondary anaerobic cavity II is 35 ℃, flows out by the surplus valve 12 on the outer cylindrical tube 2 after the Digestive system among the secondary anaerobic cavity II acquires a certain degree; Can record the pH value of Digestive system by pH value sensor 13, when the pH value is in acidity or alkalescence, injects acid adjustment in the anaerobic cavity I, transfer alkaloid substance, to reach the suitableeest pH value of anaerobically fermenting by acid adjustment pipe 9.
Claims (2)
1. anaerobic fermentation reactor of uniting use, it is characterized in that: described reactor comprises internal layer cylindrical drum (1), outer cylindrical tube (2), the first heating tube (3), the second heating tube (4), cover (5), at the bottom of the tank (6), the 3rd heating tube (7), feed-pipe (8), acid adjustment pipe (9), baffle plate (15), two agitators (11), two surplus valves (12), two pH value sensors (13), two temperature sensors (14), several first traverse baffles (16) and several the second traverse baffles (17), internal layer cylindrical drum (1) is arranged in the outer cylindrical tube (2), (6) are separately positioned on the place, upper and lower end face of outer cylindrical tube (2) at the bottom of cover (5) and the tank, internal layer cylindrical drum (1), outer cylindrical tube (2), (6) are concrete masonry units and form at the bottom of cover (5) and the tank, the inner chamber of internal layer cylindrical drum (1) is an anaerobic cavity (I), cavity between internal layer cylindrical drum (1) and the outer cylindrical tube (2) is secondary anaerobic cavity (II), the first heating tube (3) is built by laying bricks or stones in the body of wall of internal layer cylindrical drum (1), the second heating tube (4) is built by laying bricks or stones in the body of wall of outer cylindrical tube (2), all build the 3rd heating tube (7) by laying bricks or stones in (6) body of wall at the bottom of the tank of an anaerobic cavity (I) and secondary anaerobic cavity (II) correspondence, two agitators (11) all are arranged in the anaerobic cavity (I), and on two agitators (11), lower setting, one end of feed-pipe (8) be arranged in the anaerobic cavity (I) and be positioned at the below agitator (11) below, the other end of feed-pipe (8) passes to outer cylindrical tube (2) outside, baffle plate (15), several first traverse baffles (16) and several the second traverse baffles (17) are along the circumference uniform distribution setting of secondary anaerobic cavity (II), and an end of baffle plate (15) is connected with the outer wall of internal layer cylindrical drum (1), the other end of baffle plate (15) is connected with the inwall of outer cylindrical tube (2), several first traverse baffles (16) are arranged alternately with several second traverse baffles (17), and an end of the first traverse baffle (16) is connected with the outer wall of internal layer cylindrical drum (1), the inwall of the other end of the first traverse baffle (16) and outer cylindrical tube (2) is provided with slit (t), one end of the second traverse baffle (17) is connected with the inwall of outer cylindrical tube (2), the outer wall of the other end of the second traverse baffle (17) and internal layer cylindrical drum (1) is provided with slit (t), the sidewall below of internal layer cylindrical drum (1) is provided with internal layer overflow weir (1-1), the sidewall top of outer cylindrical tube (2) is provided with outer overflow weir (2-1), internal layer overflow weir (1-1) and internal layer overflow weir (1-1) lay respectively at the both sides of baffle plate (15), two surplus valves (12) are installed in respectively internal layer overflow weir (1-1) and outer overflow weir (2-1) is located, one end of acid adjustment pipe (9) is arranged in the anaerobic cavity (I) and is positioned at the top of internal layer cylindrical drum (1), the other end of acid adjustment pipe (9) passes to outer cylindrical tube (2) outside, be respectively equipped with an anaerobic methane outlet (5-1) and secondary anaerobic methane outlet (5-2) on the cover (5), an anaerobic methane outlet (5-1) communicates with an anaerobic cavity (I), the secondary anaerobic methane goes out (5-2) and communicates with secondary anaerobic cavity (II), by pipeline a pH value sensor (13) and a temperature sensor (14) are installed respectively on the sidewall of internal layer cylindrical drum (1), by pipeline a pH value sensor (13) and a temperature sensor (14) are installed respectively on outer cylindrical tube (2) minute other sidewall.
2. described anaerobic fermentation reactor of uniting use according to claim 1, it is characterized in that: the cover (5) that a described anaerobic cavity (I) is corresponding is provided with an anaerobism viewing window (5-3), and the top of outer cylindrical tube (2) sidewall is provided with secondary anaerobism viewing window (2-2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012204663043U CN202744431U (en) | 2012-09-13 | 2012-09-13 | Combined-use anaerobic fermentation reactor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012204663043U CN202744431U (en) | 2012-09-13 | 2012-09-13 | Combined-use anaerobic fermentation reactor |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202744431U true CN202744431U (en) | 2013-02-20 |
Family
ID=47703860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2012204663043U Expired - Fee Related CN202744431U (en) | 2012-09-13 | 2012-09-13 | Combined-use anaerobic fermentation reactor |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202744431U (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102816692A (en) * | 2012-09-13 | 2012-12-12 | 黑龙江省科学院科技孵化中心 | Anaerobic fermentation reactor for combined use |
CN106119094A (en) * | 2016-08-31 | 2016-11-16 | 山东百川同创能源有限公司 | A kind of marsh gas anaerobic fermentation apparatus and biogas anaerobic fermentation method |
CN108620017A (en) * | 2018-06-06 | 2018-10-09 | 江苏联合创业环保有限公司 | Thermal cracking integrated equipment |
CN109608007A (en) * | 2018-12-27 | 2019-04-12 | 金华市恒通工程检测有限公司 | River dredging sludge treatment equipment |
CN110342767A (en) * | 2019-07-23 | 2019-10-18 | 天津大学 | A kind of high solid anaerobic sludge digestion stirring system |
-
2012
- 2012-09-13 CN CN2012204663043U patent/CN202744431U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102816692A (en) * | 2012-09-13 | 2012-12-12 | 黑龙江省科学院科技孵化中心 | Anaerobic fermentation reactor for combined use |
CN106119094A (en) * | 2016-08-31 | 2016-11-16 | 山东百川同创能源有限公司 | A kind of marsh gas anaerobic fermentation apparatus and biogas anaerobic fermentation method |
CN108620017A (en) * | 2018-06-06 | 2018-10-09 | 江苏联合创业环保有限公司 | Thermal cracking integrated equipment |
CN109608007A (en) * | 2018-12-27 | 2019-04-12 | 金华市恒通工程检测有限公司 | River dredging sludge treatment equipment |
CN109608007B (en) * | 2018-12-27 | 2021-07-09 | 金华市恒通工程检测有限公司 | Sludge treatment device for river dredging |
CN110342767A (en) * | 2019-07-23 | 2019-10-18 | 天津大学 | A kind of high solid anaerobic sludge digestion stirring system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202744431U (en) | Combined-use anaerobic fermentation reactor | |
CN102816692A (en) | Anaerobic fermentation reactor for combined use | |
CN101560466B (en) | Integrated methane dry fermentation device | |
CN101597562B (en) | Secondary anaerobic fermentation and power generation system for large-middle scale biogas engineering | |
CN102874921B (en) | Up-flow anaerobic sludge bed reactor and operation method | |
CN105602844B (en) | Kitchen castoff high temperature combined anaerobic digestion equipment and anaerobic digestion process | |
CN110468033B (en) | Anaerobic digestion device for strengthening methane production by utilizing self-sustaining air flotation | |
CN106754294A (en) | A kind of apparatus and method of vinegar grain solid-liquid split-phase anaerobic digestion methane production | |
CN203754715U (en) | Device for producing biogas through integrated two-phase anaerobic fermentation of straw | |
CN112625873A (en) | Two-phase dry anaerobic digestion fermentation system | |
CN108467170B (en) | Fermentation tank, and dry anaerobic fermentation system and method for co-processing municipal domestic garbage and municipal sludge by using fermentation tank | |
CN107828649B (en) | Large-scale full-mixing type anaerobic biogas fermentation tank thermal compensation system and process method thereof | |
CN100491270C (en) | Hydrogen making apparatus using high concentrated organic wastewater and its hydrogen making method | |
CN110951598A (en) | Double-chamber anaerobic fermentation device and method suitable for high-concentration materials | |
CN109336254A (en) | A kind of novel anaerobic reactor for garbage leachate wastewater processing | |
CN103922471A (en) | Efficient anaerobic reactor used for fuel ethanol waste water secondary anaerobic treatment | |
CN102586095B (en) | Gas stripping convective circulation anaerobic digestion reactor | |
CN100509667C (en) | Method and equipment for combined fermentation treatment of food garbage and sewage sludge | |
CN204125315U (en) | A kind of plant biogas fermentation device | |
CN202440509U (en) | Gas stripping convective circulation anaerobic digestion reactor | |
CN102107987B (en) | Modular anaerobic digestion system | |
CN204918160U (en) | A pulse play water system for anaerobic reactor | |
CN104293654A (en) | Novel biogas digester | |
CN210765300U (en) | Feeding device for dry anaerobic digestion system | |
CN211057101U (en) | Double-chamber anaerobic fermentation device suitable for high-concentration materials |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20180913 |
|
CF01 | Termination of patent right due to non-payment of annual fee |