CN114321955B - Intelligent multilevel thermal power plant incineration flue gas circulation treatment system - Google Patents
Intelligent multilevel thermal power plant incineration flue gas circulation treatment system Download PDFInfo
- Publication number
- CN114321955B CN114321955B CN202111540591.8A CN202111540591A CN114321955B CN 114321955 B CN114321955 B CN 114321955B CN 202111540591 A CN202111540591 A CN 202111540591A CN 114321955 B CN114321955 B CN 114321955B
- Authority
- CN
- China
- Prior art keywords
- pipe
- boiler body
- gas
- air
- splitter
- 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
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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The invention discloses an intelligent multi-level thermal power plant incineration flue gas circulation treatment system which comprises a boiler body, wherein a heat insulation layer is arranged outside the boiler body, and an air layer is formed between the heat insulation layer and the boiler body; a plurality of burners distributed in two rows from bottom to top are arranged in the boiler body, and a gas filling pipe for supplementing gas to each burner is arranged between the two rows of burners; the top of the boiler body is connected with a separator through a smoke exhaust pipe, a discharge port of the separator is connected with a fuel pipe, and the fuel pipe extends into the air layer from the lower part of the boiler body and extends upwards spirally around the boiler body to provide fuel for the burner at the uppermost layer; the exhaust port of the separator is connected with an exhaust gas pipe, the exhaust gas pipe is provided with a circulating pipe, and the circulating pipe extends into the air layer from the upper part of the boiler body and spirally extends downwards around the boiler body to be connected with the gas filling pipe. The invention has the characteristics of sufficient combustion, energy saving and environmental protection.
Description
Technical Field
The invention relates to a flue gas treatment system, in particular to an intelligent multi-level thermal power plant incineration flue gas circulation treatment system.
Background
The main working principle of the boiler is that heat energy released after fuel combustion or waste heat in industrial production is transferred to water in a container, so that the water reaches the required temperature or certain pressure of steam. In the steam production process, the combustion condition of the boiler has a very important influence on the steam generation, the smoke emission and the fuel utilization rate. In the combustion process of the boiler, because fuel is not sufficiently combusted, the thermal decomposition temperature of nitrogen is lower than the combustion temperature of pulverized coal, nitrogen compounds in the fuel can be oxidized to generate nitrogen oxides and nitrogen dioxide in the combustion process, and because coal is composed of two stages of volatile matter combustion and coke combustion in the combustion process, the generated nitrogen compounds are composed of two parts of oxidation of gas-phase nitrogen and oxidation of residual nitrogen in coke, and form soot with coal materials which are not completely combusted, and the pollutants are directly discharged into the atmospheric environment, so that not only is the environment polluted, but also a large amount of energy is wasted.
Disclosure of Invention
The invention aims to provide an intelligent multi-level thermal power plant incineration flue gas circulating treatment system. The invention has the characteristics of sufficient combustion, energy saving and environmental protection.
The technical scheme of the invention is as follows: an intelligent multi-level thermal power plant incineration flue gas circulation treatment system comprises a boiler body, wherein a heat insulation layer is arranged outside the boiler body, and an air layer is formed between the heat insulation layer and the boiler body; a plurality of burners distributed in two rows from bottom to top are arranged in the boiler body, and a gas filling pipe for supplementing gas to each burner is arranged between the two rows of burners; the top of the boiler body is connected with a separator through a smoke exhaust pipe, a discharge port of the separator is connected with a fuel pipe, and the fuel pipe extends into the air layer from the lower part of the boiler body and extends upwards spirally around the boiler body to supply fuel for the burner at the uppermost layer; the exhaust port of the separator is connected with an exhaust gas pipe, the exhaust gas pipe is provided with a circulating pipe, and the circulating pipe extends into the air layer from the upper part of the boiler body and spirally extends downwards around the boiler body to be connected with the gas filling pipe.
In the incineration flue gas circulation treatment system of the intelligent multi-level thermal power plant, each combustor is provided with a combustion hole through which air flow and flame pass; the combustion holes of the upper and lower layer burners are corresponding, and the aperture of the combustion hole of the upper layer burner is larger than that of the lower layer burner.
In the aforesaid intelligent multilevel thermal power plant burns flue gas circulation processing system, the below that is located every layer of combustor on the gas filling pipe is equipped with the gas vent group, and the gas pocket in the gas vent group all is the heliciform and upwards distributes and increase in proper order.
In the aforesaid intelligent multilevel thermal power plant burns flue gas circulation processing system, the last connection rear side that lies in the circulating pipe of flue gas pipe is equipped with denitrification facility, denitrification facility includes that two keep off and flow the board, and one side that keeps off and flow the board is equipped with the breach, and the breach that two keep off and flow the board sets up opposite direction, and the outer border that keeps off and flow the board is equipped with the fender that extends forward, and two keep off and flow the board between be equipped with the denitration blender of being connected with denitration feed liquor pipe, be equipped with a plurality of rotating vane on the denitration blender and spout and make rotating vane pivoted shower nozzle to rotating vane.
Among the aforesaid intelligent multilevel thermal power plant burns flue gas circulation processing system, the front side that is close to the fender stream board of import department is equipped with the flow distribution plate, be equipped with the space between flow distribution plate and the fender stream board, the flow distribution plate includes the first reposition of redundant personnel portion that has a down dip right and the second reposition of redundant personnel portion that has a down dip left, be equipped with a plurality of splitter boxes that correspond with the breach in the first reposition of redundant personnel portion, be equipped with a plurality of diffluent holes in the second reposition of redundant personnel portion, the lower extreme of second reposition of redundant personnel portion is located to enclose to be connected through stabilizer blade and fender stream board in keeping off to and keep off and form the ash falling mouth between the stream board.
In the aforesaid intelligent multilevel thermal power plant burns flue gas circulation processing system, breach department is equipped with the filter screen, is equipped with the adsorbed layer on the filter screen.
In the aforesaid intelligent multilevel thermal power plant burns flue gas circulation processing system, denitration blender's upper and lower both sides all are equipped with rotating vane, and the vertical distance between each rotating vane and the denitration blender is different, and the contained angle between each rotating vane and the horizontal plane is different, and is different with two adjacent rotating vane's of one side direction of rotation, and each rotating vane's size is different.
Among the aforesaid intelligent multilevel thermal power plant burns flue gas circulation processing system, boiler body's bottom is equipped with the grid plate, is equipped with a plurality of intake pipes on the grid plate, and the tip of intake pipe is equipped with the gas outlet, and the outside cover of intake pipe is equipped with the air outlet cover, is equipped with a plurality of air outlets on the global of air outlet cover, air outlet cover and intake pipe threaded connection, is equipped with the cover that shelters from that is used for blockking the air outlet between intake pipe and the air outlet cover, shelters from cover and intake pipe fixed connection.
Compared with the prior art, the invention carries out multi-layer combustion on fuel in the boiler body through a plurality of burners, the fuel and the fuel gas are separated from the flue gas discharged after the combustion through the separator, the fuel is preheated in an air layer through a fuel pipe, the waste heat generated by the combustion of the boiler body is fully utilized and is reintroduced into the boiler body, the fuel is firstly provided for the burner at the uppermost layer, and the fuel which is not completely combusted in the burner at the upper layer falls to the burner at the next layer for continuous combustion; the gas is preheated in the air layer by the circulating pipe and then is led into the boiler body again to provide sufficient gas for each combustor, so that the flue gas is secondarily utilized, the energy is saved, the combustion sufficiency is improved, and NO is inhibited x And the burners of the upper layer provide more fuel gas, so as to provide more fuel, fuel gas and fuel gas for the upper dilute phase zoneThe temperature increases the combustion share and the temperature above, so that the temperature of the whole boiler body is more uniform.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the denitration apparatus;
FIG. 3 is a schematic view of the structure of a baffle plate;
FIG. 4 is a schematic view of the construction of the manifold;
FIG. 5 is a schematic view of the denitration mixer;
FIG. 6 is a schematic view of a structure of a matching relationship between the air inlet pipe and the air outlet sleeve;
fig. 7 is a schematic view of another matching relationship structure of the air inlet pipe and the air outlet sleeve.
The labels in the figures are: 1. a boiler body; 11. a heat-insulating layer; 12. an air layer; 2. a burner; 21. a combustion hole; 22. air adding pipe; 23. a group of gas holes; 3. a separator; 31. a fuel tube; 32. an exhaust gas pipe; 33. a circulation pipe; 4. a denitration device; 41. a flow baffle plate; 42. a notch; 43. enclosing; 44. a flow distribution plate; 45. a first flow dividing section; 451. a shunt slot; 46. a second flow dividing section; 461. a shunt hole; 47. a support leg; 471. a dust falling port; 48. a filter screen; 5. a denitration mixer; 51. a rotating blade; 52. a spray head; 6. a wind distribution plate; 61. an air inlet pipe; 62. an air outlet sleeve; 621. an air outlet; 63. a shielding sleeve.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example (b):
as shown in fig. 1-7, an intelligent multi-level thermal power plant incineration flue gas circulation treatment system comprises a boiler body 1, wherein an insulating layer 11 is arranged outside the boiler body 1, and an air layer 12 is formed between the insulating layer 11 and the boiler body 1; a plurality of burners 2 distributed in two rows from bottom to top are arranged in the boiler body 1, and a gas filling pipe 22 for supplementing gas to each burner 2 is arranged between the two rows of burners 2; the top of the boiler body 1 is connected with a separator 3 through a smoke exhaust pipe, a discharge port of the separator 3 is connected with a fuel pipe 31, the fuel pipe 31 extends into the air layer 12 from the lower part of the boiler body 1 and extends upwards spirally around the boiler body 1 to provide fuel for the burner 2 at the uppermost layer; an exhaust gas pipe 32 is connected to an exhaust port of the separator 3, a circulation pipe 33 is provided on the exhaust gas pipe 32, and the circulation pipe 33 extends into the air layer 12 from above the boiler body 1 and extends spirally downward around the boiler body 1 to be connected to the air-adding pipe 22.
The fuel is combusted in multiple layers in the boiler body 1 through the plurality of burners 2, the fuel and the fuel gas are separated from the flue gas discharged after the combustion through the separator 3, the fuel is preheated in the air layer 12 through the fuel pipe 31, the waste heat generated by the combustion of the boiler body 1 is fully utilized, and then the fuel is reintroduced into the boiler body 1, the fuel is firstly provided for the burner 2 at the uppermost layer, and the fuel which is not completely combusted in the burner 2 at the upper layer falls to the burner 2 at the next layer for continuous combustion; the gas is preheated in the air layer 12 by the circulating pipe 33, and then is introduced into the boiler body 1 again to be connected with the gas adding pipe 22, so that the gas is provided for each combustor 2, the flue gas is secondarily utilized, the combustion sufficiency is improved, and NO is inhibited x And the burners 2 on the upper layer provide more fuel and gas, so as to provide more fuel, gas and temperature for the upper dilute phase zone, and the temperature of the whole boiler body 1 is more uniform.
Each burner 2 is provided with a combustion hole 21 for air flow and flame to pass through; the combustion holes 21 of the burners 2 in the upper and lower stages correspond to each other, and the diameter of the combustion hole 21 of the burner 2 in the upper stage is larger than that of the combustion hole 21 of the burner 2 in the lower stage. After the large-particle fuel on the upper combustor 2 is combusted, the small-particle fuel can fall to the lower combustor 2 through the combustion hole 21 to continue to be combusted, and fully contacts with the fuel gas in the falling process until the combustion is complete, so that the combustion efficiency is improved.
The air adding pipe 22 is provided with an air hole group 23 below each layer of combustor 2, and air holes in the air hole group 23 are spirally and upwards distributed and are sequentially increased. The air hole group 23 which is spirally and upwardly distributed can spray airflow with upward rotational flow, and the airflow can more accurately fall onto the combustor 2 for air supply by utilizing the upward pushing action of the airflow, so that the waste is reduced; and the airflow with upward rotational flow can also form airflow turbulence, so that the fuel gas and the fuel are mixed more fully, and the combustion reaction is more complete and thorough.
The denitration device 4 is arranged on the exhaust gas pipe 32 and located on the rear side of the connection of the circulating pipe 33, the denitration device 4 comprises two flow baffle plates 41, a notch 42 is arranged on one side of each flow baffle plate 41, a filter screen 48 is arranged at the position of the notch 42, and an adsorption layer is arranged on the filter screen 48. The notches 42 of the two flow baffles 41 are arranged in opposite directions, the outer edges of the flow baffles 41 are provided with surrounding baffles 43 extending forwards, the front side of the flow baffle 41 close to the inlet is provided with a splitter plate 44, a gap is arranged between the splitter plate 44 and the flow baffle 41, the splitter plate 44 comprises a first splitter part 45 inclining rightwards and downwards and a second splitter part 46 inclining leftwards and downwards, the first splitter part 45 is provided with a plurality of splitter grooves 451 corresponding to the notches 42, the second splitter part 46 is provided with a plurality of splitter holes 461, the lower end of the second splitter part 46 is positioned in the surrounding baffles 43 and is connected with the flow baffle 41 through support legs 47, and an ash falling port 471 is formed between the lower end of the second splitter part 46 and the flow baffle 41.
The flue gas realizes the reposition of redundant personnel through the splitter 451 and the splitter 461 of the splitter plate 44, is convenient for fully react with the subsequent denitration device 4, and the particulate matter mixed in the flue gas easily falls into the dust accumulation groove formed by the baffle 43 and the baffle plate 41 along with the first splitter portion 45 and the second splitter portion 46, and is prevented from being taken away by the subsequent air flow. The two flow baffle plates 41 with the notches 42 in opposite directions are arranged, the shunted flue gas enters from the notch 42 of the flow baffle plate 41 at the front side, is treated by the adsorption layer and the filter screen 48, and is discharged from the notch 42 of the flow baffle plate 41 at the rear side to form a zigzag flow path, so that the flue gas speed can be reduced, the reaction time of the flue gas and the denitration mixer 5 is prolonged, and the flue gas and the denitration mixer 5 can react more completely.
Be equipped with the denitration blender 5 of being connected with denitration feed liquor pipe between two fender flow plates 41, be equipped with a plurality of rotating blade 51 on the denitration blender 5 and spout and make rotating blade 51 pivoted shower nozzle 52 to rotating blade 51. The upper side and the lower side of the denitration mixer 5 are both provided with rotating blades 51, the vertical distance between each rotating blade 51 and the denitration mixer 5 is different, the included angle between each rotating blade 51 and the horizontal plane is different, the rotating directions of two adjacent rotating blades 51 on the same side are different, and the size of each rotating blade 51 is differentThe same is true. This design makes and forms a plurality of positions difference, the different whirl of angle, area difference between two fender stream boards 41 to improve the mixed degree between air current and the doctor solution, accelerate reaction rate, improve denitration efficiency, reduce NO x The amount of production of (c).
Claims (7)
1. The utility model provides an intelligent multilevel thermal power plant burns flue gas circulation processing system which characterized in that: the boiler comprises a boiler body (1), wherein a heat insulation layer (11) is arranged outside the boiler body (1), and an air layer (12) is formed between the heat insulation layer (11) and the boiler body (1); a plurality of burners (2) distributed in two rows from bottom to top are arranged in the boiler body (1), and a gas filling pipe (22) for supplementing gas to each burner (2) is arranged between the two rows of burners (2); the top of the boiler body (1) is connected with a separator (3) through a smoke exhaust pipe, a discharge port of the separator (3) is connected with a fuel pipe (31), the fuel pipe (31) extends into the air layer (12) from the lower part of the boiler body (1) and extends upwards spirally around the boiler body (1) to provide fuel for the burner (2) at the uppermost layer; an exhaust port of the separator (3) is connected with an exhaust gas pipe (32), the exhaust gas pipe (32) is provided with a circulating pipe (33), and the circulating pipe (33) extends into the air layer (12) from the upper part of the boiler body (1) and spirally extends downwards around the boiler body (1) to be connected with the air adding pipe (22); the utility model discloses a boiler, including boiler body (1), boiler body, air distribution plate (6), be equipped with a plurality of intake pipes (61) on air distribution plate (6), the tip of intake pipe (61) is equipped with the gas outlet, the outside cover of intake pipe (61) is equipped with air outlet sleeve (62), be equipped with a plurality of air outlets (621) on air outlet sleeve (62) global, air outlet sleeve (62) and intake pipe (61) threaded connection, be equipped with between intake pipe (61) and the air outlet sleeve (62) and be used for blockking sheltering from cover (63) of air outlet (621), shelter from cover (63) and intake pipe (61) fixed connection.
2. The system of claim 1, wherein the system comprises: each combustor (2) is provided with a combustion hole (21) for air flow and flame to pass through; the combustion holes (21) of the upper and lower burners (2) correspond to each other, and the diameter of the combustion hole (21) of the upper burner (2) is larger than that of the combustion hole (21) of the lower burner (2).
3. The system of claim 1, wherein the system comprises: the gas filling pipe (22) is provided with a gas hole group (23) below each layer of combustor (2), and gas holes in the gas hole group (23) are spirally and upwards distributed and are sequentially increased.
4. The system of claim 1, wherein the system comprises: the denitration device is characterized in that a denitration device (4) is arranged on the exhaust pipe (32) and located on the connection rear side of the circulating pipe (33), the denitration device (4) comprises two flow baffle plates (41), one side of each flow baffle plate (41) is provided with a notch (42), the notches (42) of the two flow baffle plates (41) are opposite in direction, the outer edge of each flow baffle plate (41) is provided with a baffle (43) extending forwards, a denitration mixer (5) connected with a denitration liquid inlet pipe is arranged between the two flow baffle plates (41), and the denitration mixer (5) is provided with a plurality of rotating blades (51) and a spray head (52) which sprays the rotating blades (51) to enable the rotating blades (51) to rotate.
5. The system of claim 4, wherein the system comprises: the front side of the baffle plate (41) close to the inlet is provided with a splitter plate (44), a gap is arranged between the splitter plate (44) and the baffle plate (41), the splitter plate (44) comprises a first splitter part (45) inclined downwards to the right and a second splitter part (46) inclined downwards to the left, a plurality of splitter grooves (451) corresponding to the notches (42) are arranged on the first splitter part (45), a plurality of splitter holes (461) are arranged on the second splitter part (46), the lower end of the second splitter part (46) is positioned in the enclosure (43) and is connected with the baffle plate (41) through support legs (47), and a dust falling port (471) is formed between the baffle plate (41).
6. The system of claim 4, wherein the system comprises: a filter screen (48) is arranged at the notch (42), and an adsorption layer is arranged on the filter screen (48).
7. The system of claim 4, wherein the system comprises: the denitration blender (5) upper and lower both sides all are equipped with rotating vane (51), and the vertical distance between each rotating vane (51) and denitration blender (5) is different, and the contained angle between each rotating vane (51) and the horizontal plane is different, and the direction of rotation of two adjacent rotating vane (51) with the same side is different, and the size of each rotating vane (51) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111540591.8A CN114321955B (en) | 2021-12-16 | 2021-12-16 | Intelligent multilevel thermal power plant incineration flue gas circulation treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111540591.8A CN114321955B (en) | 2021-12-16 | 2021-12-16 | Intelligent multilevel thermal power plant incineration flue gas circulation treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114321955A CN114321955A (en) | 2022-04-12 |
| CN114321955B true CN114321955B (en) | 2022-08-30 |
Family
ID=81051866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111540591.8A Active CN114321955B (en) | 2021-12-16 | 2021-12-16 | Intelligent multilevel thermal power plant incineration flue gas circulation treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114321955B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7798077B2 (en) * | 2007-03-16 | 2010-09-21 | Simeken, Inc. | Freefall pyrolytic oven |
| CN201059569Y (en) * | 2007-05-30 | 2008-05-14 | 乔正宝 | Non chimney energy-saving environmetnal protection boiler |
| CN102634356B (en) * | 2012-04-13 | 2013-06-19 | 青岛大学 | Preparation device of charcoal with biomass as raw material |
| CN109099416B (en) * | 2018-07-19 | 2020-02-04 | 燕山大学 | Biomass boiler device |
| CN216557106U (en) * | 2021-12-16 | 2022-05-17 | 湖州南太湖热电有限公司 | Boiler flue gas denitration treatment system |
-
2021
- 2021-12-16 CN CN202111540591.8A patent/CN114321955B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114321955A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180250628A1 (en) | Sorbent injection system and method for treating flue gases | |
| CN102434878A (en) | Three-layer secondary air low nitrogen oxide swirling burner | |
| WO2014067405A1 (en) | Method for reducing nitrogen oxide discharge of biomass circulating fluidized bed boiler | |
| CN205461778U (en) | Semidry method circulating fluidized bed flue gas is SOx/NOx control device simultaneously | |
| CN216557106U (en) | Boiler flue gas denitration treatment system | |
| CN109945211B (en) | Burning treatment method and system for semi-coke pyrolysis waste gas and waste liquid | |
| CN106402905A (en) | Staged-combustion torch head device | |
| CN103557517B (en) | The method and apparatus of living beings second pyrolysis | |
| CN204543929U (en) | Smoke eliminator | |
| CN114321955B (en) | Intelligent multilevel thermal power plant incineration flue gas circulation treatment system | |
| CN107420887A (en) | The biomass direct-fired device that oxygen-enriched combusting and flue gas recirculation are combined | |
| CN101062796A (en) | Phenol water treatment technique and device for gas furnace | |
| JPH0799253B2 (en) | Secondary combustion promotion method of fluidized bed furnace. | |
| CN206858496U (en) | A kind of activating and reducing combustion with meagre oxygen system | |
| CN103868055A (en) | Regenerative combustion device applicable to stable combustion of compounded tangent-flow and direct-flow gas with low calorific value | |
| CN210814701U (en) | Flue gas desulfurization device | |
| CN201760230U (en) | Flue gas desulfurization reactor for circulating fluidized bed of uniform flow field | |
| CN202191838U (en) | Flue gas disposing device of coal-fired industrial boiler | |
| CN201300034Y (en) | Vortex-sprinkling combined desulphurizing device | |
| KR102291374B1 (en) | Small Size Apparatuses for the Incineration of Vinyl Waste and the Purification of Burning Gas and the Method of Incinerating Vinyl Waste and Purificating Burning-Gas by Using the Same | |
| CN116006988A (en) | Tail gas treatment process and device for TCO coated glass | |
| CN206861513U (en) | The low NOx Horizontal CFB Boilers of multipaths that a kind of flue gas strile-backs | |
| CN212283563U (en) | Denitration system suitable for biomass boiler | |
| CN104152184A (en) | Biomass cyclone pyrolysis-suspension combustion composite gasification device and gasification method thereof | |
| CN209801470U (en) | low-nitrogen combustion system of circulating fluidized bed boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |