CN1760334A - Technique and equipment for cracking worn-out rubber and plastic thorugh additive in low temperature under negative pressure - Google Patents
Technique and equipment for cracking worn-out rubber and plastic thorugh additive in low temperature under negative pressure Download PDFInfo
- Publication number
- CN1760334A CN1760334A CNA2005100476502A CN200510047650A CN1760334A CN 1760334 A CN1760334 A CN 1760334A CN A2005100476502 A CNA2005100476502 A CN A2005100476502A CN 200510047650 A CN200510047650 A CN 200510047650A CN 1760334 A CN1760334 A CN 1760334A
- Authority
- CN
- China
- Prior art keywords
- additive
- cracking
- temperature
- negative pressure
- feeding warehouse
- 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
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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A low-temp cracking technology with slight negative pressure for rejected rubber or plastics includes such steps as washing, removing impurities, heating in feeding cabin while isolating oxygen, adding additive, cracking in cracking cabin, separating steel wire and carbon block by separator, packing the carbon black, and condensing the cracked gas to obtain fuel oil and fuel gas. Its apparatus is also disclosed.
Description
Technical field:
The present invention relates to a kind of treatment process and equipment of old and useless article, the feeding warehouse in particularly a kind of waste old, process in plastics technology and the treating processes and the structure in cracking storehouse utilize this Processes and apparatus waste old, plastics can be carried out the product that harmless treatment also therefrom obtains multiple reproducible utilization.
Background technology:
Along with the continuous development of worker, agricultural and communications, various waste olds, plastics constantly increase, and comprise that the employed tire of all kinds of vehicles needs regular update, and the junked tire of replacing is faced with the problem of how handling with regeneration.Because it is very complicated former that rubber item, plastics form, it is to be become by complicated technology polymerization face with inorganics by multiple organism, contain all kinds of oil ingredients and be about 50-60%, carbon black and inorganics account for about 30%, other charges account for about 10%, so contain the macromolecular compound that a large amount of C, H two elements are polymerized in this rubber item.When handling old tire, the pyroprocess that utilizes that has is handled at present, and its temperature reaches 1200 ℃, has a large amount of toxic gases and solids to discharge, and causes serious environmental to pollute.The buried mode of employing that also has is handled, and this mode can cause the pollution of soil equally.Existing treatment process also all is the waste to resource, can not carry out regeneration to it.
Summary of the invention:
The objective of the invention is to carry kind of confession a kind of simple, pollution-free, save additive under low-temperature and slight negative pressure cracking waste old, plastic process and the equipment of resource, overcome the deficiencies in the prior art.
Technical solution of the present invention is: a kind of additive under low-temperature and slight negative pressure cracking waste old, plastic process, it is characterized in that: it comprises the steps:
A, to old rubber, plastics clean, impurity elimination;
B, send in the anoxybiotic feeding warehouse 3 old rubber, plastics and heating, spray into additive simultaneously;
C, will send into through rapid old rubber, the plastics of handling of previous step and carry out heating pyrolyze in the cracking storehouse 4;
D, the steel wire and the carbon black solid article that are produced after the cracking are sent in the discharging transitional storehouse 6, steel wire is separated with carbon black and carbon black is packed through separating device 7 again, simultaneously the splitting gas that is produced after the cracking is sent into and carried out condensation in the condensing equipment 5, form processed oil and fuel gas.
Described anoxybiotic feeding warehouse 3 is to charge into nitrogen to keep-up pressure and heat in feeding warehouse 3, to send into heat exchanger 2 internal heating through the nitrogen that Nitrogen plant 1 produces earlier, again the nitrogen of hot nitrogen body and Nitrogen plant 1 generation is together sent into feeding warehouse 3, temperature in the feeding warehouse 3 is controlled at 80 ℃--between-95 ℃, pressure-controlling is between 4KPa-6Kpa, and the hot gas that the heat of heat exchanger 2 is discharged by cracking storehouse 4 is supplied with.
Described additive is MA1 additive or MA2 additive.
Described heating pyrolyze temperature is controlled at 200 ℃--between-450 ℃, the time is 14 minutes---16 minutes, and cracking storehouse 4 required heats are supplied with by hotblast stove 9.
A kind of additive under low-temperature and slight negative pressure cracking waste old, the structure of the feeding warehouse in the plastic process, it is characterized in that: feeding warehouse 3 has shell 11, in shell 11, be supported with the drive sprocket 13 that is positioned at the bottom and superposed by movable sprocket 17, the transmission shaft of drive sprocket 13 stretches out the outside of shell 11 and joins with power set, be provided with opening for feed 12 in the bottom of shell 11, top is provided with discharge port 25, be provided with material supporting rack 16 at drive sprocket 13 with on by the chain between the movable sprocket 17 15, establish additive nozzle 18 and nitrogen inlet 26 on shell 11,25 places are provided with material-pulling device 21 at discharge port.
Described discharge port 25 is located at the side of shell 11, is provided with transport unit 20 between discharge port 25 and driven wheel 17, and additive nozzle 18 points to transport unit 20, thereunder is provided with additive accumulator tank 19.
Be provided with cylinder 22 between described discharge port 25 and the transport unit 20.
The structure in the cracking storehouse in a kind of additive under low-temperature and slight negative pressure cracking waste old, the plastic process, it is characterized in that: there is outer chamber 30 in cracking storehouse 4, in outer chamber 30, be supported with inner chamber body 31, form space 42 between outer chamber 30 and the inner chamber body 31, outer chamber 30 is provided with hot-blast outlet 32 and hot blast import 33 and the supporting seat 34 that is communicated with space 42, inner chamber body 31 is provided with oil gas vent 38, is provided with material inlet 39 and material outlet 40 at the two ends of inner chamber body 31.
Described inner chamber body 31 outsides are provided with heat absorbing sheet 37.
Described inner chamber body 31 is provided with temperature-measuring port 43, and outer chamber 30 is provided with temperature-measuring port 41.
The present invention compared with prior art has non-secondary pollution, refuse reproducible utilization, saves the advantage of resource, utilize that this technology is renewable to go out processed oil, fuel gas, industrial carbon black and recovery part metal, no any discharging does not produce pollution in the whole technological process.
Description of drawings:
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is the structural representation of feeding warehouse 3 in the technical process of the present invention;
Fig. 3 is that synoptic diagram is looked on a left side shown in Figure 2;
Fig. 4 is the structural representation in cracking storehouse 4 in the technical process of the present invention;
Fig. 5 is a sectional schematic diagram shown in Figure 4.
Embodiment:
As shown in Figure 1: 1 is Nitrogen plant, and the nitrogen outlet of Nitrogen plant 1 is connected with feeding warehouse 3 pipelines with heat exchanger 2, and the nitrogen outlet of heat exchanger 2 is connected with feeding warehouse 3 pipelines.The discharge port 25 of feeding warehouse 3 and the material inlet 39 of the inner chamber body 31 on the cracking storehouse 4 join.Cracking storehouse 4 tilts to be supported on the anchor by supporting seat 34.The material outlet 40 in cracking storehouse 3 joins with the inlet of discharging transitional storehouse 6, and the outlet of discharging transitional storehouse 6 and separating device 7 join.The oil gas vent 38 in cracking storehouse 4 connects condensing equipment 5.The hot blast import 33 in the hot-blast outlet of hotblast stove 9 and cracking storehouse 4 is joined, and hot-blast outlet 32 and the heat exchanger 2 and the hotblast stove 9 in cracking storehouse 4 join.Additive nozzle 18 connects the additive blowoff.
Described Nitrogen plant 1, hotblast stove 9, heat exchanger 2, condensing equipment 5, discharging transitional storehouse 6, separating device 7 are all selected existing equipment for use, its Nitrogen plant model is CH-NB-100, hotblast stove 9 models are YL-300, the model of heat exchanger 2 is RJ-20, the model of condensing equipment 5 is BZS600-2.5-3/19-41, and discharging transitional storehouse 6 is a shaker conveyer, and its model is SCG-800, separating device 7 is the straight-line vibratory screening apparatus, and its model is HZ-800.
Shown in Fig. 2,3: described feeding warehouse 3 structures are: feeding warehouse 3 has shell 11, adopts the metal sheet welding production.At shell 11 internal fixing pillar 14 is arranged, below the pillar 14 and above respectively bearings the drive sprocket 13 that is positioned at the bottom and superposed by movable sprocket 17 is arranged, the shaft extension of drive sprocket 13 go out the outside of shell 11 and with the output shaft of motor reducer 23 between shaft coupling connect.Motor reducer is fixed on the support 24.Lower side at shell 11 is provided with opening for feed 12, be fixed with metal material supporting rack 16 at drive sprocket 13 with by 15 screwings of the chain between the movable sprocket 17, top is provided with discharge port 25, described discharge port 25 is located at the side of shell 11, discharge port 25 an and horizontal section is arranged between the movable sprocket 17, be provided with chain delivery device 20 between this horizontal section place discharge port 25 and driven wheel 17, the motion-work wheel of chain delivery device 20 extended shell 11 outsides also connect motor reducer.Establish additive nozzle 18 and nitrogen inlet 26 on shell 11, additive nozzle 18 points to transport unit 20, additive can be sprayed directly on on the material that is positioned on the transport unit.Thereunder be provided with additive accumulator tank 19.25 places are provided with material-pulling device 21 at discharge port, material-pulling device can adopt the pneumatic type structure, promptly on shell 11, be fixed with the cylinder that joins with air pump, piston rod end in the cylinder connects push pedal, when heat pump is worked, piston rod is reciprocating, and the material that can promote discharge port 25 places is in material inlet 39 enters inner chamber body 31.Promote material for convenience, cylinder 22 also is equipped with at 25 places at discharge port, and cylinder 22 is between the termination of discharge port 25 and transport unit 20.
Shown in Fig. 4,5: there is outer chamber 30 in cracking storehouse 4, in outer chamber 30, be supported with inner chamber body 31 with back up pad 36, form space 42 between outer chamber 30 and the inner chamber body 31, outer chamber 30 is provided with hot-blast outlet 32 and hot blast import 33 and the supporting seat 34 that is communicated with space 42, and described inner chamber body 31, outer chamber 30, hot-blast outlet 32, hot blast import 33, supporting seat 34 are the metal sheet welding production.Be welded with oil gas vent 38 on the inner chamber body 31, be provided with material inlet 39 and material outlet 40 at the two ends of inner chamber body 31.Inner chamber body 31 outsides are welded with heat absorbing sheet 37, improve the heating surface area of inner chamber body 31.Temperature when grasping work is provided with temperature-measuring port 43 on inner chamber body 31, outer chamber 30 is provided with temperature-measuring port 41, all joins with thermocouple temperature measuring apparatus.
Working process is: (referring to Fig. 1, being example to handle junked tire) cleans old tire earlier, removes impurity simultaneously.By opening for feed 12 old tire is sent on the material supporting rack 16 in the feeding warehouse 3 again, the nitrogen that is produced by Nitrogen plant 1 is sent into feeding warehouse 3 inside through heat exchanger 2 heating from nitrogen inlet 26 old tire is heated, make feeding warehouse 3 inner chambers keep certain pressure to make its anoxybiotic simultaneously, pressure-controlling is between 4KPa-6Kpa, temperature in the feeding warehouse 3 is controlled at 80 ℃--between-95 ℃, the action of motor reducer 23, can drive chain 15 motions, old tire is upwards promoted, and drop on the transport unit 20, spray additive by additive nozzle 18 to the old tire material that is positioned at transport unit 20 tops simultaneously, additive is MA1 additive or a MA2 additive produced in USA, as select the MA1 additive for use, then consumption is 0.5%, and promptly additive accounts for 0.5% of weight of material, as selects the MA2 additive for use, then consumption is 0.3%--1%, and promptly additive accounts for the 0.3%--1% of weight of material.Because the motion of transport unit 20 is delivered to discharge port 25 places with material, through material-pulling device 21 along cylinder 22 in material inlet 39 is pushed into the inner chamber body 31 in cracking storehouse 4.The hot blast self-heating wind inlet 33 that hotblast stove 9 produces enters in the space 42 inner chamber body 31 is heated, and makes the temperature of charge rising cracking in it.The heating pyrolyze temperature is controlled at 200 ℃--and between-450 ℃, the time is 14 minutes---16 minutes.The end brake door of inner chamber body 31 is closed during cracking, and feeding warehouse quits work.The oil gas that is produced in the cracking process is extracted out through oil gas vent 38, and sends into condensation in the condenser 5.In this process, be in micro-vacuum state in the cracking storehouse 4.The processed oil of output and fuel gas enter storage tank and gas-holder respectively after the condensation.Material enters in the discharging transitional storehouse 6 through steel wire and the carbon black solids that cracking produces, and steel wire is separated with carbon black and carbon black is packed through separating device 7 again, and separating device 7 is separated steel wire by magnetic from solids.For the carbon black product, can utilize in three rings of HGM-60 type saturating pulverizing mill to pulverize and pack.The hot gas that the heat of heat exchanger 2 is discharged by cracking storehouse 4 is supplied with.
Claims (10)
1, a kind of additive under low-temperature and slight negative pressure cracking waste old, plastic process, it is characterized in that: it comprises the steps:
A, to old rubber, plastics clean, impurity elimination;
B, send in the anoxybiotic feeding warehouse [3] old rubber, plastics and heating, spray into additive simultaneously;
C, will send in the cracking storehouse [4] through rapid old rubber, the plastics of handling of previous step and carry out heating pyrolyze;
D, the steel wire and the carbon black solid article that are produced after the cracking are sent in the discharging transitional storehouse [6], steel wire is separated with carbon black and carbon black is packed through separating device [7] again, simultaneously the splitting gas that is produced after the cracking is sent in the condensing equipment [5] and carried out condensation, form processed oil and fuel gas.
2, additive under low-temperature and slight negative pressure cracking waste old according to claim 1, plastic process, it is characterized in that: described anoxybiotic feeding warehouse [3] is to charge into nitrogen to keep-up pressure and heat in feeding warehouse [3], to send into heat exchanger [2] internal heating through the nitrogen that Nitrogen plant [1] produces earlier, again the nitrogen of hot nitrogen body and Nitrogen plant [1] generation is together sent into feeding warehouse [3], temperature in the feeding warehouse [3] is controlled at 80 ℃--between-95 ℃, pressure-controlling is between 4KPa-6Kpa, and the hot gas that the heat of heat exchanger [2] is discharged by cracking storehouse [4] is supplied with.
3, additive under low-temperature and slight negative pressure cracking waste old according to claim 1 and 2, plastic process is characterized in that: described additive is MA1 additive or MA2 additive.
4, additive under low-temperature and slight negative pressure cracking waste old according to claim 3, plastic process, it is characterized in that: described heating pyrolyze temperature is controlled at 200 ℃--between-450 ℃, time is 14 minutes---16 minutes, cracking storehouse [4] required heat was supplied with by hotblast stove [9].
5, a kind of additive under low-temperature and slight negative pressure cracking waste old, the structure of the feeding warehouse in the plastic process, it is characterized in that: feeding warehouse [3] has shell [11], in shell [11], be supported with the drive sprocket [13] that is positioned at the bottom and superposed by movable sprocket [17], the transmission shaft of drive sprocket [13] stretches out the outside of shell [11] and joins with power set, be provided with opening for feed [12] in the bottom of shell [11], top is provided with discharge port [25], be provided with material supporting rack [16] at drive sprocket [13] with on by the chain [15] between the movable sprocket [17], on shell [11], establish additive nozzle [18] and nitrogen inlet [26], locate to be provided with material-pulling device [21] at discharge port [25].
6, the structure of the feeding warehouse in additive under low-temperature and slight negative pressure cracking waste old according to claim 5, the plastic process, it is characterized in that: described discharge port [25] is located at the side of shell [11], between discharge port [25] and driven wheel [17], be provided with transport unit [20], additive nozzle [18] points to transport unit [20], thereunder is provided with additive accumulator tank [19].
7, the structure of the feeding warehouse of additive under low-temperature and slight negative pressure cracking waste old according to claim 6, plastic process is characterized in that: be provided with cylinder [22] between described discharge port [25] and the transport unit [20].
8, the structure in the cracking storehouse in a kind of additive under low-temperature and slight negative pressure cracking waste old, the plastic process, it is characterized in that: cracking storehouse [4] have outer chamber [30], in outer chamber [30], be supported with inner chamber body [31], form space [42] between outer chamber [30] and the inner chamber body [31], outer chamber [30] is provided with hot-blast outlet [32] and hot blast import [33] and the supporting seat [34] that is communicated with space [42], inner chamber body [31] is provided with oil gas vent [38], is provided with material inlet [39] and material outlet [40] at the two ends of inner chamber body [31].
9, the structure in the cracking storehouse in additive under low-temperature and slight negative pressure cracking waste old according to claim 8, the plastic process is characterized in that: described inner chamber body [31] outside is provided with heat absorbing sheet [37].
10, the structure in the cracking storehouse in additive under low-temperature and slight negative pressure cracking waste old according to claim 9, the plastic process, it is characterized in that: described inner chamber body [31] is provided with temperature-measuring port [43], and outer chamber [30] is provided with temperature-measuring port [41].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100476502A CN100387685C (en) | 2005-11-03 | 2005-11-03 | Technique and equipment for cracking worn-out rubber and plastic thorugh additive in low temperature under negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100476502A CN100387685C (en) | 2005-11-03 | 2005-11-03 | Technique and equipment for cracking worn-out rubber and plastic thorugh additive in low temperature under negative pressure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100078345A Division CN100526425C (en) | 2005-11-03 | 2005-11-03 | Feeding warehouse in course of cracking waste rubber and plastic by additive under low-temperature and slight negative pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760334A true CN1760334A (en) | 2006-04-19 |
| CN100387685C CN100387685C (en) | 2008-05-14 |
Family
ID=36706557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100476502A Expired - Fee Related CN100387685C (en) | 2005-11-03 | 2005-11-03 | Technique and equipment for cracking worn-out rubber and plastic thorugh additive in low temperature under negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387685C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008061467A1 (en) * | 2006-11-23 | 2008-05-29 | Daguang Li | A high efficient and energy-saving cracking apparatus for waste/used rubber |
| CN102925192A (en) * | 2012-11-19 | 2013-02-13 | 易林 | Environment-friendly energy-saving system device for producing fuel oil by using waste rubber |
| CN109628120A (en) * | 2019-02-20 | 2019-04-16 | 青岛伊克斯达智能装备有限公司 | A kind of whole tire continous way thermal splitting system of waste tire and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585037B (en) * | 2009-06-05 | 2011-05-18 | 上海绿人生态经济科技有限公司 | Steel wire conveyor for recycling waste and old tire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2491452Y (en) * | 2001-06-26 | 2002-05-15 | 绿矽岛能源科技股份有限公司 | Self-feeding medium circulation selection and detention splitting oil production plant |
| US6534689B1 (en) * | 2001-08-24 | 2003-03-18 | Pyrocat Ltd. | Process for the conversion of waste plastics to produce hydrocarbon oils |
-
2005
- 2005-11-03 CN CNB2005100476502A patent/CN100387685C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008061467A1 (en) * | 2006-11-23 | 2008-05-29 | Daguang Li | A high efficient and energy-saving cracking apparatus for waste/used rubber |
| CN1962735B (en) * | 2006-11-23 | 2010-12-08 | 李大光 | High-performance energy-saving waste rubber cracking apparatus |
| CN102925192A (en) * | 2012-11-19 | 2013-02-13 | 易林 | Environment-friendly energy-saving system device for producing fuel oil by using waste rubber |
| CN109628120A (en) * | 2019-02-20 | 2019-04-16 | 青岛伊克斯达智能装备有限公司 | A kind of whole tire continous way thermal splitting system of waste tire and method |
| CN109628120B (en) * | 2019-02-20 | 2023-09-26 | 青岛伊克斯达智能装备有限公司 | Continuous thermal cracking system and method for whole waste tires |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100387685C (en) | 2008-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101089124A (en) | Waste tyre cracking process and apparatus | |
| CN1760334A (en) | Technique and equipment for cracking worn-out rubber and plastic thorugh additive in low temperature under negative pressure | |
| CN205927573U (en) | H profiled steel structure production line | |
| CN108911458B (en) | Fatlute cracker | |
| CN2832816Y (en) | Device for micro-negative pressure cleavage of waste rubber and plastic at low temperature by using additive | |
| CN100526425C (en) | Feeding warehouse in course of cracking waste rubber and plastic by additive under low-temperature and slight negative pressure | |
| CN1253255C (en) | Recycling method system and container | |
| CN107746131A (en) | A kind of equipment for processing industrial sewage | |
| CN104177868B (en) | A kind of carbon black production system and processing technique continuously | |
| CN104910948B (en) | A kind of serialization cracking technology and equipment | |
| CN214512939U (en) | Coal system methyl alcohol gasification fine slag degree of depth dewatering device | |
| CN210101842U (en) | Scraped car is synthesized and is disassembled processing line | |
| CN113069813A (en) | Sewage treatment device for purifying and recycling sewage treatment products | |
| CN112191675A (en) | Vehicle-mounted skid-mounted in-situ soil remediation system | |
| CN207465622U (en) | A kind of building plastic waste safe disposal device | |
| CN207057267U (en) | A kind of thermal desorption module of vehicle-mounted integrated form soil thermal desorption prosthetic device | |
| WO2005087380A1 (en) | Method and device for recycling and reusing a roofing bituminous material | |
| CN210367543U (en) | Semi-continuous waste tire rubber oiling equipment | |
| CN204125414U (en) | A kind of carbon black production system continuously | |
| CN203972380U (en) | A kind of engine link cleaning machine | |
| EP0565032A1 (en) | Plant and process for demolishing scrap cars and associated scrap by heat treatment with energy recovery | |
| CN108998069B (en) | Waste tire cracking recovery treatment system and treatment method thereof | |
| CN208083141U (en) | A kind of molding machine and heat treatment system of V-arrangement torsion beam | |
| CN216703474U (en) | Teflon lining rack matched with three-cylinder pressing plate mechanism and large-scale corrosion-resistant and heat-resistant filter press | |
| CN212215446U (en) | Novel feeding device of condensation reaction kettle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20131103 |