CN103968381B - Mechanical adjustment premix gas burner - Google Patents
Mechanical adjustment premix gas burner Download PDFInfo
- Publication number
- CN103968381B CN103968381B CN201310046574.8A CN201310046574A CN103968381B CN 103968381 B CN103968381 B CN 103968381B CN 201310046574 A CN201310046574 A CN 201310046574A CN 103968381 B CN103968381 B CN 103968381B
- Authority
- CN
- China
- Prior art keywords
- air hose
- mixing tube
- gas
- fixed support
- gas pipe
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 36
- 239000000567 combustion gas Substances 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000005245 sintering Methods 0.000 description 9
- 239000011819 refractory material Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
- Furnace Details (AREA)
Abstract
Mechanical adjustment premix gas burner and method, the front end of Gas Pipe 19 is provided with plug 17, the front end of Gas Pipe 19 is provided with multiple gas outlets 18 on the one end of plug 17, Gas Pipe 19 is provided with the second fixed support 9 at gas outlet 18, tail end one end of Gas Pipe 19 is provided with terminal pad b21, the front end of mixing tube 16 is provided with fuel burner nozzle 7, mixing tube 16 is provided with the first fixed support 5 close to the one end of fuel burner nozzle 7, mixing tube 16 is provided with time air port 15 close to ring flange b22 one end, mixing tube 16 is provided with terminal pad a12 close to time one end of air port 15, adjustable air hose 3 is provided with main air port 4 close to ring flange a13 one end, the leading portion of adjustable air hose 3 is set in air hose 2, air hose 2 is fixed on kiln wall 1 by being fixedly installed on the fastening steel plate 24 of latter end with expansion bolt 23.
Description
Technical field：
Present invention relates particularly to a kind of mechanical adjustment premix gas burner and method, belong to the combustion technology neck of kiln
Domain, is adapted to the burn application of refractory material.
Background technology：
With regard to known to inventor, the burner for being used to use in refractory material sintering process domestic at present is diffusion type combustion
Burn, conventional diffusion type burning is that combustion-supporting gas and combustion gas are burnt in mixing and had several drawbacks in that；First can make because mixing is bad
Into the surplus of combustion-supporting gas, improving the temperature of smoke evacuation increases kiln thermal loss.Second due to mix it is bad prevent combustion gas from
Fully burning causes fuel excess, therefore wastes fuel.On the other hand, the burning for being used in refractory material sintering process
Device is installed with fixed position, and the burner on conventional burner has one section away from tunnel cave interior wall within the walls in the kiln of tunnel cave
Distance, it is just farther away from sinter.The working method of burner on existing designed combustion device is in heat radiation by external flame
Under conditions of be sintered, while maximum temperature position on kiln wall not in agglomerate bodies, interior kiln wall and sinter pass through radiation
Transmit a part of heat energy, be not flame direct sintering, thus in concrete operations kiln wall crater because sintering warpage it is especially tight
Weight, temperature is to waste fuel higher than agglomerate bodies temperature to kiln within the walls in addition.
The content of the invention：
The purpose of the present invention be exactly in order to overcome drawbacks described above to be sufficiently mixed combustion-supporting gas and combustion gas there is provided one kind,
Combustion-supporting gas, combustion gas and combustion flame can be made rationally to utilize and the mechanical adjustment premix gas burner of high combustion efficiency and side
Method.
The present invention is realized according to following technical scheme.The premix gas burner and method of the mechanical adjustment, its
It is characterised by setting a Gas Pipe 19, plug 17 is provided with the front end of Gas Pipe 19, the front end of Gas Pipe 19 is close to plug
Multiple gas outlets 18 are provided with 17 one end, Gas Pipe 19 is provided with the second fixed support 9, second at gas outlet 18
It is evenly arranged with multiple fumaroles 10 on fixed support 9, tail end one end of Gas Pipe 19 is provided with terminal pad-b21, terminal pad-
B21 is fastenedly connected by flange plate bolt-b20 with being fixed on the ring flange-b22 of the end of mixing tube 16, the front end of mixing tube 16
It is provided with fuel burner nozzle 7, fuel burner nozzle 7 and is provided with multiple mixed gas outlets 6, mixing tube 16 is set close to the one end of fuel burner nozzle 7
Be equipped with the first fixed support 5, the first fixed support 5 and be evenly arranged with multiple air outlet slits 8, mixing tube 16 close to ring flange-
B22 one end is provided with time air port 15, and mixing tube 16 is provided with terminal pad-a12, terminal pad-a12 close to time one end of air port 15 and set
Be equipped with flame-observing hole 14, terminal pad-a12 by flange plate bolt-a11 and be fixed on the ring flange of adjustable end of air hose 3-
A13 is fastenedly connected, and adjustable air hose 3 is provided with main air port 4 close to ring flange-a13 one end, adjustable air hose 3
Leading portion is set in air hose 2, and air hose 2 is fixed on kiln by being fixedly installed on the fastening steel plate 24 of latter end with expansion bolt 23
On wall 1, the follower head of adjustable air hose 3 is provided with rack 25, and gear 26 is configured with its male and female, and the center of gear 26 is set
Motor shaft 28 is equipped with, motor 29 is fixed on connecting plate 27 by bolt 31, and connecting plate 27 is fixed on kiln by expansion bolt 30
On wall 1.
The present invention mechanical adjustment premix gas burner and method, be combustion gas by Gas Pipe, combustion gas is gone out from combustion gas
Mouthful spray, combustion gas and combustion-supporting gas mixes in advance in mixing tube, gaseous mixture is sprayed from fuel burner nozzle, fuel burner nozzle is to tunnel
Flame in kiln, realizes sintering of the tunnel cave to firing thing, including；Air hose, adjustable air hose, fixed support, combustion gas
Pipe, fuel burner nozzle is interlocked in kiln and stretched, can make any position of the combustion flame movement in kiln, be in kiln
Sinter provides required sintering temperature.
The mechanical adjustment premix gas burner and method of the present invention, with significantly enhancing sintering quality, and sintering
Speed, it is constant correctly to meet kiln temperature, implements in refractory material sintering process, effectively utilizes the fire of fuel burner nozzle
Flame, reduces the consumption of fuel, the advantage of efficient energy-saving.
Brief description of the drawings：
Accompanying drawing 1 is mechanical adjustment premix gas burner structure chart
Wherein：1. kiln wall, 2. air hoses, 3. adjustable air hoses, 4. main air ports, 5. first fixed supports, 6. mixing
Gas is exported, 7. fuel burner nozzles, 8. air outlet slits, 9. second fixed supports, 10. fumaroles, 11. flange plate bolt-a, 12. connections
Disk-a, 13. ring flange-a, 14. flame-observing holes, 15. air ports, 16. mixing tubes, 17. plugs, 18. gas outlets, 19. Gas Pipes,
20. flange plate bolt-b, 21. terminal pad-b, 22. ring flange-b, 23. expansion bolts, 24. fastening steel plates, 25. racks, 26. teeth
Wheel, 27. fastening steel plates, 28. motor shafts, 29. motors, 30. expansion bolts, 31. bolts.
Embodiment
Invention mechanical adjustment premix gas burner as shown in Figure 1 and method embodiment, it is characterised in that set
One Gas Pipe 19, plug 17 is provided with the front end of Gas Pipe 19, and the front end of Gas Pipe 19 is set on the one end of plug 17
There are multiple gas outlets 18, Gas Pipe 19 is provided with gas outlet 18 on second fixed support 9, the second fixed support 9
Multiple fumaroles 10 are evenly arranged with, tail end one end of Gas Pipe 19 is provided with terminal pad-b21, terminal pad-b21 and passes through flange
Valve snail bolt-b20 is fastenedly connected with being fixed on the ring flange-b22 of the end of mixing tube 16, and the front end of mixing tube 16 is provided with combustion gas burning
Multiple mixed gas outlets 6 are provided with mouth 7, fuel burner nozzle 7, mixing tube 16 is provided with the first fixation close to the one end of fuel burner nozzle 7
Multiple air outlet slits 8 are evenly arranged with support 5, the first fixed support 5, mixing tube 16 is provided with close to ring flange-b22 one end
Secondary air port 15, mixing tube 16 is provided with terminal pad-a12, terminal pad-a12 close to time one end of air port 15 and is provided with flame-observing hole
14, terminal pad-a12 are connected by flange plate bolt-a11 with being fixed on the ring flange-a13 of adjustable end of air hose 3 and fastening
Connect, adjustable air hose 3 is provided with main air port 4 close to ring flange-a13 one end, the leading portion of adjustable air hose 3 is set in
In air hose 2, air hose 2 is fixed on kiln wall 1 by being fixedly installed on the fastening steel plate 24 of latter end with expansion bolt 23, adjustable
The follower head of the air hose 3 of section is provided with rack 25, gear 26 is configured with its male and female, and gear 26 is provided centrally with motor shaft
28, motor 29 is fixed on connecting plate 27 by bolt 31, and connecting plate 27 is fixed on kiln wall 1 by expansion bolt 30.
In the present invention, in order that fuel gas buring is abundant, Gas Pipe is told, air hose is told, tells adjustable air
Manage, tell that mixing tube is intercommunication, tell that air hose is connected with burner hearth.
Arranged as the further implementation of the present invention, as told in Fig. 1, tell adjustable air hose 3 and mixing tube 16
Connect and the first fixed support 5 is provided with air channel.Combustion air current amount ratio can so be adjusted, makes the fire of fuel burner nozzle 7
Flame burning is abundant, and flame rigidity is good, reduce the purpose of pollutant emission.
Arranged as the further implementation of the present invention, as told in Fig. 1, tell and left between plug and told fuel burner nozzle
Certain gap and the setting gradually expanded, so as to reach that combustion gas and combustion-supporting gas can mix that can also fully to adjust flame strong
The purpose of degree and flame profile.
In the present invention, in order that fuel burner nozzle combustion flame is effectively utilized, regulating main air mouthful and time air port air inflow are closed
Reason carries out mixing to combustion gas can reduce the consumption of combustion gas.
In the present invention, in order that fuel burner nozzle combustion flame is effectively utilized, gear adjusts adjustable air hose to kiln
The consumption of combustion gas can be reduced by being put in stove, while the consumption of air can be reduced, reduced exhaust gas temperature, reduced pollutant
Discharge.
Claims (1)
1. a kind of mechanical adjustment premix gas burner, the mechanical adjustment premix gas burner sets a Gas Pipe (19),
It is provided with plug (17) in the front end of Gas Pipe (19), the front end of Gas Pipe (19) is provided with multiple on plug (17) one end
Gas outlet (18), Gas Pipe (19) is provided with the second fixed support (9), the second fixed support close to gas outlet (18) place
(9) multiple fumaroles (10) are evenly arranged with, tail end one end of Gas Pipe (19) is provided with terminal pad-b (21), terminal pad-b
(21) it is fastenedly connected by flange plate bolt-b (20) with being fixed on the ring flange-b (22) of mixing tube (16) end, mixing tube
(16) front end, which is provided with fuel burner nozzle (7), fuel burner nozzle (7), is provided with multiple mixed gas outlets (6), and mixing tube (16) is leaned on
Nearly fuel burner nozzle (7) one end, which is provided with, to be evenly arranged with multiple air on the first fixed support (5), the first fixed support (5) and goes out
Mouth (8), mixing tube (16) is provided with time air port (15) close to ring flange-b (22) one end, and mixing tube (16) is close to time air port (15)
One end, which is provided with terminal pad-a (12), terminal pad-a (12), is provided with flame-observing hole (14), and terminal pad-a (12) passes through ring flange
Bolt-a (11) is fastenedly connected with being fixed on the ring flange-a (13) of adjustable air hose (3) end, adjustable air hose
(3) ring flange-a (13) one end is provided with main air port (4), the leading portion of adjustable air hose (3) is set in air hose (2)
Interior, air hose (2) is fixed on kiln wall (1) by being fixedly installed on the fastening steel plate (24) of latter end with expansion bolt (23), can
The follower head of the air hose (3) of regulation is provided with rack (25), and gear (26) is configured with its male and female, and the center of gear (26) is set
Motor shaft (28) is equipped with, motor (29) is fixed on connecting plate (27) by bolt (31), and connecting plate (27) passes through expansion bolt
(30) it is fixed on kiln wall (1)；The internal diameter of air hose (2) is more than the external diameter of adjustable air hose (3), the length of air hose (2)
Degree is less than the length of adjustable air hose (3), and external diameter of the internal diameter more than mixing tube (16) of adjustable air hose (3) can
The length of the air hose (3) of regulation is more than the length of mixing tube (16), and the internal diameter of mixing tube (16) is more than the outer of Gas Pipe (19)
Footpath, the length of mixing tube (16) is more than the length of Gas Pipe (19)；The external diameter and adjustable air hose of first fixed support (5)
(3) internal diameter is the same, and the internal diameter of the first fixed support (5) is as the external diameter of mixing tube (16), and the center of air outlet slit (8) is same
Horizontal line cross parallel in a direction, the external diameter of the second fixed support (9) is as the internal diameter of mixing tube (16), and second fixes
The internal diameter of support (9) is as the external diameter of Gas Pipe (19), and the center same level line of fumarole (10) intersects flat in a direction
OK, the external diameter of the first fixed support (5) is more than the external diameter of the second fixed support (9), and the internal diameter of the first fixed support (5) is more than the
Two fixed supports (9) internal diameter.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498498.2A CN107191929A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
| CN201710528949.2A CN107191930A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
| CN201310046574.8A CN103968381B (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310046574.8A CN103968381B (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710498498.2A Division CN107191929A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
| CN201710528949.2A Division CN107191930A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968381A CN103968381A (en) | 2014-08-06 |
| CN103968381B true CN103968381B (en) | 2017-10-27 |
Family
ID=51238205
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310046574.8A Active CN103968381B (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner |
| CN201710528949.2A Pending CN107191930A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
| CN201710498498.2A Pending CN107191929A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528949.2A Pending CN107191930A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
| CN201710498498.2A Pending CN107191929A (en) | 2013-01-24 | 2013-01-24 | Mechanical adjustment premix gas burner and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN103968381B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509462A (en) * | 2014-10-14 | 2016-04-20 | 梁燕龙 | Combined burner of shaft kiln and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159122A (en) * | 1995-12-12 | 1997-06-20 | Narita Techno:Kk | Premixing gas burner |
| JPH11287408A (en) * | 1998-03-31 | 1999-10-19 | Miura Co Ltd | Low-nox burner |
| JP2003254512A (en) * | 2002-02-28 | 2003-09-10 | Sunray Reinetsu Co Ltd | Gas burner |
| JP2005195214A (en) * | 2004-01-06 | 2005-07-21 | Noritz Corp | Combustion device |
| CN201193823Y (en) * | 2008-02-28 | 2009-02-11 | 邓毅坚 | Energy saving burner special for ceramic kiln |
| CN101900334A (en) * | 2009-06-01 | 2010-12-01 | 王文庭 | Rotary premixed gas burner of pottery kiln |
| CN202182469U (en) * | 2011-05-12 | 2012-04-04 | 王晶华 | Roller-hearth-kiln pressurization spray premixing burner core |
| CN203131824U (en) * | 2013-01-24 | 2013-08-14 | 梁燕龙 | Mechanical adjusting premixed gas burner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2316161A (en) * | 1996-08-05 | 1998-02-18 | Boc Group Plc | Oxygen-fuel swirl burner |
| DE20304859U1 (en) * | 2003-03-26 | 2003-05-28 | Buderus Heiztechnik Gmbh | Premixing gas burner for attaching to furnace body door of furnace has cylindrical fuel rod which together with burner fan and/or other burner components is fastened to mounting plate which is detachably connected to burner plate |
| CN102200280A (en) * | 2011-05-25 | 2011-09-28 | 朱复定 | Secondary air premixed gas burner for ceramic kiln |
| CN202432519U (en) * | 2012-01-16 | 2012-09-12 | 冼振球 | Multi-mixing efficient burner |
-
2013
- 2013-01-24 CN CN201310046574.8A patent/CN103968381B/en active Active
- 2013-01-24 CN CN201710528949.2A patent/CN107191930A/en active Pending
- 2013-01-24 CN CN201710498498.2A patent/CN107191929A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159122A (en) * | 1995-12-12 | 1997-06-20 | Narita Techno:Kk | Premixing gas burner |
| JPH11287408A (en) * | 1998-03-31 | 1999-10-19 | Miura Co Ltd | Low-nox burner |
| JP2003254512A (en) * | 2002-02-28 | 2003-09-10 | Sunray Reinetsu Co Ltd | Gas burner |
| JP2005195214A (en) * | 2004-01-06 | 2005-07-21 | Noritz Corp | Combustion device |
| CN201193823Y (en) * | 2008-02-28 | 2009-02-11 | 邓毅坚 | Energy saving burner special for ceramic kiln |
| CN101900334A (en) * | 2009-06-01 | 2010-12-01 | 王文庭 | Rotary premixed gas burner of pottery kiln |
| CN202182469U (en) * | 2011-05-12 | 2012-04-04 | 王晶华 | Roller-hearth-kiln pressurization spray premixing burner core |
| CN203131824U (en) * | 2013-01-24 | 2013-08-14 | 梁燕龙 | Mechanical adjusting premixed gas burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103968381A (en) | 2014-08-06 |
| CN107191929A (en) | 2017-09-22 |
| CN107191930A (en) | 2017-09-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Ting Inventor before: Liang Yanlong |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170524 Address after: 830000 Urumqi science and technology zone, the Xinjiang Uygur Autonomous Region high tech street, No. 1, No. 384 Applicant after: URUMQI JIUPIN SESAME INFORMATION TECHNOLOGY CO., LTD. Address before: The 1 District 045011 in Shanxi province Yangquan City suburb Yinying Zhen San Quan Cun No. 25 2 Applicant before: Liang Yanlong |
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| TA01 | Transfer of patent application right | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fan Chen Inventor before: Chen Ting |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170825 Address after: 226100 Jiangsu city of Nantong Province Haimen Haimen Textile Industrial Park Avenue South are Dieshiqiao electric mall 3 floor Applicant after: Haimen Huaxia Li Li Network Technology Service Co., Ltd. Address before: 830000 Urumqi science and technology zone, the Xinjiang Uygur Autonomous Region high tech street, No. 1, No. 384 Applicant before: URUMQI JIUPIN SESAME INFORMATION TECHNOLOGY CO., LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |