CN205893178U - Tar schizolysis reaction unit - Google Patents
Tar schizolysis reaction unit Download PDFInfo
- Publication number
- CN205893178U CN205893178U CN201620660237.7U CN201620660237U CN205893178U CN 205893178 U CN205893178 U CN 205893178U CN 201620660237 U CN201620660237 U CN 201620660237U CN 205893178 U CN205893178 U CN 205893178U
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- CN
- China
- Prior art keywords
- combustion chamber
- catalyst bed
- reaction unit
- air
- catalyst
- 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
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 46
- 239000003054 catalyst Substances 0.000 claims abstract description 105
- 238000002485 combustion reaction Methods 0.000 claims abstract description 73
- 238000005235 decoking Methods 0.000 claims abstract description 8
- 238000004523 catalytic cracking Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 55
- 238000005336 cracking Methods 0.000 claims description 48
- 239000011285 coke tar Substances 0.000 claims description 43
- 238000002309 gasification Methods 0.000 claims description 37
- 238000009826 distribution Methods 0.000 claims description 17
- 239000002737 fuel gas Substances 0.000 claims description 14
- 239000011269 tar Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 10
- 210000002683 foot Anatomy 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 7
- 239000000571 coke Substances 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007233 catalytic pyrolysis Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses a tar schizolysis reaction unit handles in order to carry out the decoking to gas with the gas outlet intercommunication of gasifier, include: being cavity setting and the catalyst bed of both ends opening in order to be used for the holding catalyst, locating the last top cap of the last port of catalyst bed, the lower port of locating the catalyst bed provides thermal combustion chamber for the catalyst bed to and be used for supporting tar schizolysis reaction unit's support group spare, wherein, the catalyst is used for making tar catalytic cracking, the catalyst bed is located the lateral wall of catalyst top and sets up the gas outlet, the last port of catalyst bed can be dismantled with last top cap and be connected, the air inlet is offered to the combustion chamber lower part, and the air inlet feeds through with the gas outlet of gasifier, and the upper end of combustion chamber is connected with removable the unloading of lower port of catalyst bed.
Description
Technical field
The utility model is related to devoke technical field, particularly to a kind of coke tar cracking reaction unit.
Background technology
In recent years, due to the adjustment of national energy strategy, and the raising of the consciousness of social environment protection, promote people to go
Develop new cleaning, regenerative resource, gasification technology is current more ripe development of clean energy means.Gasification technology is
A kind of by solid fuel conversion for gaseous fuel thermochemical techniques, be mainly used in gasification of biomass, solid refuse gasification with
And Coal Gasification, there is the features such as cleaning, high efficiency, low stain.But current gasification technology has one inevitably asks
Topic: living beings, solid refuse and coal etc. can produce tar in the gasification of gasification furnace.If in the gas that gasification furnace produces
Tar content is too high to cause energy dissipation, gasification efficiency reduction, the blocking of equipment for gasification burn into gas pipeline, harm combustion gas to set
The problems such as standby, pollution environment, run steady in a long-term on equipment for gasification produces certain impact.
In order to reduce or removing the tar in the fuel gas that gasification furnace produces, people are using current the most energy-efficient urging
The decoking changing cracking has invented coke tar cracking coke removing appts, and this device passes through tar and coke under the conditions of uniform temperature
Efficiently cracking is converted into synthesis gas, has got good decoking effect.But existing gasifier tar cracking coke removing appts and gas
Change equipment connects more closely it is difficult to dismounting is cleared up or changed, and the maintenance to coke removing appts causes certain difficulty.
Utility model content
Main purpose of the present utility model is to propose a kind of coke tar cracking reaction unit it is intended to improve tar cracking device
The convenience of later maintenance maintenance.
For achieving the above object, the utility model proposes coke tar cracking reaction unit, connect with the gas outlet of gasification furnace
So that decoking process is carried out to gas, comprising: arrange in hollow and both ends open is for housing the catalyst bed of catalyst, located at
The upper top cover of the catalyst bed of catalyst bed upper port, located at lower port the combustion for catalyst bed offer heat of catalyst bed
Burn room, and for supporting the support component of coke tar cracking reaction unit；Wherein, catalyst is used for making catalytic cracking of tar；Urge
Side wall above catalyst for the agent bed opens up gas outlet, and the upper port of catalyst bed and upper top cover are detachably connected；Burning
Room bottom opens up air inlet, and air inlet is connected with the gas outlet of gasification furnace, the upper end of combustion chamber and the lower port of catalyst bed
It is detachably connected.
Preferably, also include placing basket for the catalyst placing catalyst, catalyst is placed basket and is placed in catalyst bed.
Preferably, catalyst bed, combustion chamber and catalyst are placed basket and are made by 310s stainless steel.
Preferably, support component includes three for supporting the support feet of coke tar cracking reaction unit；The of three support feets
One end is each attached to described catalyst bed lateral wall, and the second end of three support feets is each attached to gasification furnace；And any two props up
Distance between spike is equal.
Preferably, combustion chamber is in that hollow cylinder shape is arranged, and the air inlet of combustion chamber is opened in the side wall of this combustion chamber；Combustion
Burn room to connect with gasification furnace by gas inlet pipe；Wherein, the first end of gas inlet pipe is connected with the gas outlet of gasification furnace, combustion
Second end of gas air inlet pipe is connected along the tangential direction of sidewall of combustion chamber and the air inlet of combustion chamber.
Preferably, combustion chamber is additionally provided with for making air and combustion gas mixed uniformly air distribution rings；Air distribution rings are entered
Wind side is inlet side, and air distribution rings air-out side is air side；The air inlet of combustion chamber and air air inlet are located at air
The inlet side of distribution rings, ignition device is located at the air side of air distribution rings.
Preferably, coke tar cracking reaction unit also includes gas inlet pipe, and combustion chamber is in that column type is arranged；Gas inlet
One end of pipe is connected with the gas outlet of gasification furnace, and the other end of gas inlet pipe is along the tangential direction of sidewall of combustion chamber and combustion chamber
Air inlet connect.
Preferably, coke tar cracking reaction unit also includes: for obtaining the catalysis of the temperature signal in described catalyst bed
Agent bed tempertaure monitor, and for obtaining the chamber temperature monitor of the indoor temperature signal of described burning；Described catalysis
Agent bed tempertaure monitor is in catalyst bed；Described chamber temperature monitor is indoor located at described burning.
Preferably, coke tar cracking reaction unit also includes: for obtaining of gas pressure at the air inlet of combustion chamber
One pressure sensor, and for obtaining the second pressure sensor of the gas pressure of gas outlet of catalyst bed.
Preferably, the upper end of the combustion chamber of coke tar cracking reaction unit and the lower port of catalyst bed pass through first flange
Connect；The upper port of catalyst bed is connected by second flange with upper top cover.
The split type setting of coke tar cracking reaction unit that the utility model provides, upper top cover is detachably connected with catalyst bed
Connect, catalyst bed is detachably connected with combustion chamber, and the connected mode of each split intermodule is simple, not only compact conformation, and grasp
Facilitate, thus improve the convenience of coke tar cracking reaction unit maintenance cleaning.In addition, this device also can be directly with now
There is equipment for gasification rear end to connect, existing equipment for gasification need not be transformed, answer expenditure extensively, and workable.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the utility model coke tar cracking reaction unit one embodiment；
Fig. 2 is the profile at a in Fig. 1；
Fig. 3 is the structural representation of catalyst placement basket one embodiment of the utility model coke tar cracking reaction unit.
The realization of the utility model purpose, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
The utility model proposes a kind of coke tar cracking reaction unit, for connecting with the gas outlet of gasification furnace to enter to gas
Row decoking is processed, all for the ease of overhauling cleaning to coke tar cracking reaction unit, to ensure stablizing of coke tar cracking reaction unit
Property and decoking effect.
It is the structural representation of the utility model coke tar cracking reaction unit one embodiment referring to figs. 1 to 3, Fig. 1；Fig. 2 is
Profile at a in Fig. 1；Fig. 3 is the structure of catalyst placement basket one embodiment of the utility model coke tar cracking reaction unit
Schematic diagram.
As shown in figure 1, the utility model coke tar cracking reaction unit is connected with the gas outlet of gasification furnace to carry out to gas
Decoking is processed, and this coke tar cracking reaction unit includes: upper top cover 1, catalyst bed 2, combustion chamber 3 and support component 4.
Upper top cover 1 located at the upper port of catalyst bed 2, for covering the upper port of catalyst bed 2.Upper top cover 1 and catalysis
The upper port of agent bed 2 is detachably connected.Preferably, it is connected by first flange 5 between upper top cover 1 and catalyst bed 2.
Catalyst bed 2 is used for housing catalyst 6, and this catalyst 6 enables to catalytic cracking of tar.During catalyst bed 2 is in
Empty setting and both ends open, and the side wall being located above catalyst in catalyst bed 2 offers gas outlet 7.Should illustrate
It is that catalytic pyrolysis removes the gas outlet 7 through catalyst bed 2 for the defocused gas and discharges.
Combustion chamber 3 is used for providing heat for catalyst bed 2, and its upper end is detachably connected with the lower port of catalyst bed 2,
Its bottom opens up air inlet 8, and this air inlet 8 is connected with the gas outlet of gasification furnace.Preferably, the lower port of catalyst bed 2 with
Connected by second flange 9 between the upper port of combustion chamber 3.
Support component 4 is used for supporting coke tar cracking reaction unit.For ease of being overhauled and cleaning work to combustion chamber 3,
Support component 4 includes three for supporting the support feet of coke tar cracking reaction unit.Support feet includes the first support feet 41, second
Spike 42, the 3rd support feet 43.The first end of three support feets is all fixed under catalyst bed 2 lateral wall in a welding manner
Portion, the second end of three support feets is each attached on gasification furnace, and the distance between any two support feet is equal, to improve support
Assembly 4 supports the stability of coke tar cracking reaction unit.
The service work principle of coke tar cracking reaction unit: catalyst bed 2 is carried out overhaul cleaning when needing or change
During catalyst, upper top cover 1 can be opened by dismantling first flange 5, at once carry out catalyst bed 2 maintenance arrangement or replacing is urged
Agent.In the same manner, when needing to carry out cleaning work to combustion chamber 3, combustion chamber 3 can be taken out by dismantling second flange 9, you can
Carry out the ashes in cleaning combustion chamber 3, fine particle etc. to operate.
The split type setting of coke tar cracking reaction unit that the utility model provides, upper top cover 1 is detachably connected with catalyst bed 2
Connect, catalyst bed 2 is detachably connected with combustion chamber 3, and the connected mode of each split intermodule is simple, not only compact conformation, and
Easy to operate, thus improve the convenience of coke tar cracking reaction unit maintenance cleaning.In addition, this device also can directly with
Existing equipment for gasification rear end connects, and existing equipment for gasification need not be transformed, and answers expenditure extensively, and workable.
Further, for ease of more catalyst changeout, in catalyst bed 2, it is additionally provided with some catalyst for placing catalyst
Place basket 10.If dry catalyst is placed basket 10 and is placed sequentially in from the bottom to top in catalyst bed 2.When operating personnel need replacing to urge
During agent 6, by dismantling first flange 5 and opening upper top cover 1, catalyst can be placed basket 10 and take out, such that it is able to convenient fast
Prompt ground more catalyst changeout 6.It should be noted that the quantity that basket 10 placed by catalyst can be set according to actual conditions,
In the present embodiment, the quantity that basket 10 placed by catalyst is set to four.Further, for ensureing that the gas being mixed with tar can
All by catalyst bed 2, it is to avoid gas short circuit, catalyst is placed basket 10 upper port and has been carried out polishing, mill with lower port
Flat process.
Further, will not deform for ensureing that basket 10 placed by catalyst under the high temperature conditions, catalyst is placed basket 10 and adopted
310s stainless steel.Meanwhile, equal for ensureing the intensity of coke tar cracking reaction unit at high temperature, catalyst bed 2 and combustion chamber 3
Using 310s stainless steel.
Further, combustion chamber 3 includes: air air inlet 11 and ignition device 12.Air air inlet 11 is located at combustion chamber 3
On the wall of side.Operating personnel can adjust the intake of combustion chamber 3 by air air inlet 11, to control the flame size of combustion chamber 3.
Ignition device 12 is used for lighting the fuel gas in combustion chamber 3.This ignition device 12 is on the side wall of combustion chamber 3, and dress of striking sparks
Put 12 located at air air inlet 11 top position.Specifically, ignition device 12 is isolating high-pressure ignitor.When the combustible gas in gasification furnace
After body enters combustion chamber 3, part fuel gas can be lighted by ignition device, provide heat for catalyst bed 2, to keep being catalyzed
Temperature in agent bed 2, and need not in addition supplement the energy to keep the temperature in catalyst bed 2, thus save energy.Should illustrate
, (main component is co, h to the synthesis gas that catalyst 6 produces to the catalytic cracking of tar in fuel gas2) can supplement and fire
The fuel gas burning.
Further, for enabling air uniformly to mix by a certain percentage with fuel gas, combustion chamber 3 is additionally provided with for making
Air and combustion gas mixed uniformly air distribution rings 13.Air distribution rings 13 air intake side is inlet side, and air distribution rings 13 go out
Wind side is and air side.The air inlet 8 of combustion chamber 3 and air air inlet 11 are positioned at the inlet side of air distribution rings 13, sparking
Device 12 is located at the air side of air distribution rings 13.Air is uniformly mixed beneficial to burning with fuel gas.Air and gasification furnace institute
The fuel gas discharged all uniformly is mixed through air distribution rings 13, so that fuel gas can fully be fired
Burn.
For making gas form swirling after entering combustion chamber 3, combustion chamber 3 is in that hollow cylinder shape is arranged, and combustion chamber 3
Air inlet 8 is opened in the side wall of this combustion chamber 3.Combustion chamber 3 is connected with gasification furnace by gas inlet pipe 14.Wherein, combustion gas is entered
The first end of tracheae 14 is connected with the gas outlet of gasification furnace, and the second end of gas inlet pipe 14 is along the tangent line side of combustion chamber 3 side wall
It is connected to the air inlet 8 with combustion chamber 3.When the fuel gas in gasification furnace reaches entering of combustion chamber 3 by gas inlet pipe 14
During gas port 8, the tangential direction that combustible gas is known from experience along combustion chamber 3 side wall enters combustion chamber 3, makes fuel gas along combustion chamber 3 circle
Cylindrical inner wall forms swirling air-flow.Circinate fuel gas is more conducive to mix with the air in air distribution rings 13, enters one
Step ensures burning adequacy in combustion chamber 3 for the fuel gas.
Further, for making the temperature in catalyst bed 2 be able to maintain that in default scope, to guarantee catalytic pyrolysis
Being smoothed out of process, the utility model also includes: the catalyst bed temperature for obtaining the temperature signal in catalyst bed 2 is supervised
Survey device 15, and for obtaining the chamber temperature monitor 16 of the temperature signal in combustion chamber 3.Catalyst bed temperature monitor
15 in catalyst bed 2.Chamber temperature monitor 16 is in described combustion chamber 3.Operating personnel can be catalyzed by observation
The temperature detection value of agent bed tempertaure monitor 15 and chamber temperature monitor 16 enters air capacity adjusting combustion chamber 3, thus adjusting
The flame size of whole combustion chamber 3, to guarantee that the temperature in catalyst bed 2 is able to maintain that in normal scope.
Further, also include in this device: for obtaining the first pressure of the gas pressure at the air inlet 8 of combustion chamber 3
Force snesor 17, and for obtaining the second pressure sensor 18 of the gas pressure of gas outlet 7 of catalyst bed 2.First pressure
Gas at force snesor 17 real-time detection air inlet 8, second pressure sensor 18 is used for the gas pressure of real-time detection gas outlet 7
Power.According to the pressure size of first pressure sensor 17 and second pressure sensor 18, operating personnel can judge that coke tar cracking is anti-
Answer whether device blocks, maintenance cleaning is carried out with timely focusing oil-breaking reaction unit.It should be noted that when first pressure passes
Pressure detected by sensor 17 is more than the pressure detected by second pressure sensor 18, then prove coke tar cracking reaction unit
Interior block.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be indirectly used in other related technical fields and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of coke tar cracking reaction unit, is connected with the gas outlet of gasification furnace to carry out decoking process to gas, its feature exists
In, comprising: arrange in hollow and both ends open is for housing the catalyst bed of catalyst, located at the upper end of described catalyst bed
The upper top cover of the described catalyst bed of mouth, located at lower port the burning for described catalyst bed offer heat of described catalyst bed
Room, and for supporting the support component of coke tar cracking reaction unit；Wherein, described catalyst is used for making catalytic cracking of tar；
The side wall that described catalyst bed is located above described tar cracking catalyst opens up gas outlet；The upper port of described catalyst bed with
Described upper top cover is detachably connected；Described combustion chamber bottom opens up air inlet, and described air inlet is connected with the gas outlet of gasification furnace
Logical, the upper end of described combustion chamber is detachably connected with the lower port of described catalyst bed.
2. coke tar cracking reaction unit as claimed in claim 1 is it is characterised in that also include for placing described catalyst
Basket placed by catalyst, and described catalyst is placed basket and is placed in described catalyst bed.
3. coke tar cracking reaction unit as claimed in claim 2 is it is characterised in that described catalyst bed, combustion chamber and urge
Agent is placed basket and is made by 310s stainless steel.
4. coke tar cracking reaction unit as claimed in claim 1 is it is characterised in that described support component includes three is used for supporting
The support feet of described coke tar cracking reaction unit；The first end of support feet described in three is each attached to described catalyst bed lateral wall,
Second end of support feet described in three is each attached to described gasification furnace；And the distance between support feet is equal described in any two.
5. coke tar cracking reaction unit as claimed in claim 1 is it is characterised in that described combustion chamber includes: air air inlet
And ignition device；Described air air inlet is on sidewall of combustion chamber；Described ignition device is on sidewall of combustion chamber and described
Ignition device sparking end is indoor located at described burning.
6. coke tar cracking reaction unit as claimed in claim 5 is it is characterised in that described combustion chamber is additionally provided with for making air
With fuel gas mixed uniformly air distribution rings；Described air distribution rings air intake side is inlet side, described air distribution rings
Air-out side is air side；The air inlet of described combustion chamber and air air inlet are positioned at the inlet side of described air distribution rings, institute
State the air side that ignition device is located at described air distribution rings.
7. coke tar cracking reaction unit as claimed in claim 1 is it is characterised in that described combustion chamber sets in hollow cylinder shape
Put, and the air inlet of described combustion chamber is opened in the side wall of this combustion chamber；Gas inlet pipe and gasification furnace are passed through in described combustion chamber
Connection；Wherein, the first end of described gas inlet pipe is connected with the gas outlet of gasification furnace, the second end edge of described gas inlet pipe
The tangential direction of described sidewall of combustion chamber is connected with the air inlet of described combustion chamber.
8. coke tar cracking reaction unit as claimed in claim 1 is it is characterised in that also include: for obtaining described catalyst
The catalyst bed temperature monitor of the temperature signal in bed, and for obtaining the combustion chamber of the indoor temperature signal of described burning
Temperature monitoring；Described catalyst bed temperature monitor is in catalyst bed；Described chamber temperature monitor is located at described
Burning is indoor.
9. coke tar cracking reaction unit as claimed in claim 1 is it is characterised in that also include: for obtaining described combustion chamber
Air inlet at gas pressure first pressure sensor, and for obtain obtain described catalyst bed gas outlet gas
The second pressure sensor of body pressure.
10. coke tar cracking reaction unit as claimed in claim 1 it is characterised in that the upper end of described combustion chamber with described
The lower port of catalyst bed is connected by first flange；The upper port of described catalyst bed passes through second flange with described upper top cover
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620660237.7U CN205893178U (en) | 2016-06-29 | 2016-06-29 | Tar schizolysis reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620660237.7U CN205893178U (en) | 2016-06-29 | 2016-06-29 | Tar schizolysis reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205893178U true CN205893178U (en) | 2017-01-18 |
Family
ID=57770280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620660237.7U Expired - Fee Related CN205893178U (en) | 2016-06-29 | 2016-06-29 | Tar schizolysis reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205893178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513438A (en) * | 2017-09-26 | 2017-12-26 | 安徽鼎梁生物能源科技开发有限公司 | A kind of detachable self-supporting gasification furnace and installation method |
-
2016
- 2016-06-29 CN CN201620660237.7U patent/CN205893178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513438A (en) * | 2017-09-26 | 2017-12-26 | 安徽鼎梁生物能源科技开发有限公司 | A kind of detachable self-supporting gasification furnace and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170531 Address after: 518000 Deep Salt Road No. 2092, Yantian street, Yantian District, Guangdong, 717, Shenzhen Patentee after: Shenzhen green environmental protection engineering Co., Ltd. Address before: 510000 Guangdong Province, Guangzhou Baiyun District No. 55 Room 201 bamboo diameter Patentee before: Yao Shu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |