CN102725427B - Gas purging device - Google Patents
Gas purging device Download PDFInfo
- Publication number
- CN102725427B CN102725427B CN201080063159.8A CN201080063159A CN102725427B CN 102725427 B CN102725427 B CN 102725427B CN 201080063159 A CN201080063159 A CN 201080063159A CN 102725427 B CN102725427 B CN 102725427B
- Authority
- CN
- China
- Prior art keywords
- tracheae
- gas purging
- purging device
- purge zone
- sub
- 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
- 238000010926 purge Methods 0.000 title claims abstract description 103
- 230000011218 segmentation Effects 0.000 claims description 31
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000011449 brick Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000008247 solid mixture Substances 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Charging Or Discharging (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a gas purging device, as is used, for example, in metallurgical melting vessels (such as converters, ladles, and tundishes) to blow a gas, optionally in combination with finely distributed solids, into a metallurgical melt.
Description
Technical field
The present invention relates to a gas purging device, such as its metal metallurgy smelting melting vessel (such as converter, steel ladle, funnel) in use, for by gas, may with segmentation cloth solid compositions be injected to inside metal metallurgy smelting liquation.
Background technology
Radesx-Rundschau(1987) the 288 to 302 page gives the overview of the different structure form about this gas purging device.Distinguish accordingly such as so-called slot gas blowing machine, there is the purging brick in " non-directional hole " and have the purging brick of " directional hole ".
Such as gas input is realized by the circumferential weld between closely knit ceramic body and the plate shell of circumference in slot gas blowing machine.
The gas purging device (gas purging brick) with so-called " directional hole " is generally made up of fire-resistant ceramic body, and multiple passage (having small flow cross section) is in the axially extension of gas purging device wherein.Gas is transported to an end, is given to molten metal by channel lead in the other end from passage.Gas is mostly straight line by the path of the gas purging brick with directional hole and through being everlasting gas purging device axially, although known embodiment, wherein passage tilts and/or extends spirally compared with the axial direction of gas purging device.
In the gas purging brick with so-called " non-directional hole ", fire-resistant ceramic body has many unlimited holes.Gas also not along the passage determined this ceramic body through-flow, but hole-specifically flows to exhaust end from inlet end, but this flowing connects the also basic axially realization at gas purging device.
If spoken of " axis of gas purging device ", then refer to principal direction relatively below, at this direction gas through-flow gas purging device.Axially consistent with the central axis of gas purging device in the gas purging brick of cylindrical or taper type.
The combination of above-mentioned gas blow device embodiment belongs to prior art (DE 37 16 388 C1) equally.Especially in the gas purging brick with directional hole, there is molten metal penetrate into danger inside gas purging brick along passage.Also slot gas blowing machine is applicable to similarly.Advise different measures, stop the molten metal clamp-oned.So-calledly penetrate insurance and belong to this measure, remove targetedly by means of them and/or the liquation clamp-oned that condenses.
Provided by EP 0105868 B1 and confirm effective embodiment for a long time.Known defect is, penetrating insurance is additional parts for gas purging brick.
Summary of the invention
The object of the invention is, provide the gas purging device of an above-mentioned form, it realizes high safety standard and reliably prevents molten metal from penetrating.
Basic thought of the present invention is, described gas purging device is consisted of at least two purge zone, and they can near extending abreast, but air feed dividually.Another thought of the present invention makes full use of the air blowing being transported to purge zone, and cooling is simultaneously attached to the tracheae of another purge zone.This cooling is unnecessary in gas purging device normally runs; But it realizes possibility, the frozen iron liquation when molten metal penetrates into inside this tracheae also prevents molten metal from continuing to clamp-on and damaging gas purging device thus.The present invention also recognizes, when only having the segmentation when the cooling of associated air tube to have the orientation departing from gas purging device axis, just reliably realize this security feature, the orientation of wherein this segmentation will be basically perpendicular to the principal direction of tracheae (axis of=gas purging device).
The present invention relates to a gas purging device in its general embodiment, there is the first purge zone, it is by the first tracheae air feed, and there is the second purge zone, it is by the second tracheae air feed, wherein the first and second purge zone gas purging device axially extension and the first tracheae has segmentation, it with the angle of 90 ± 45 ° relative to gas purging device axis extend and arrange like this, make this segmentation by by second tracheae carry gas-circulating.
Once molten metal is squeezed into inside gas purging device, the flow direction of molten metal corresponds essentially to the axis of gas purging device.Realize at the segmentation position of the cooling of the first tracheae at the latest turning to and slowing down flow velocity thus.The viscosity of the liquation clamp-oned can be improved rapidly and the liquation stream of stopping continuation by cooling this segmentation by means of purge gas.
Reducing flow velocity and improve contact surface between described segmentation and described refrigerating gas can optimization, if corresponding segmentation extends perpendicular to the axis of gas purging device and long as much as possible more or less.
The segmentation of the first tracheae can be made to be ring-type or the shape with part ring for this reason.One alternative embodiment regulation, the segmentation of the first tracheae is formed sinuously.
The segmentation that will cool that first tracheae is correlated with can by the guiding of the second sub-air chamber, and the second tracheae leads to the second sub-air chamber and extends to the second purge zone therefrom.Second sub-air chamber meets multiple function in this embodiment: on the one hand, and it is for being dispensing by the gas of the second tracheae conveying and equal compression ratio thus, before gas enters the second purge zone.On the other hand, the volume of sub-air chamber can be made full use of, hold the segmentation that will cool of the first tracheae, can make thus this segmentation all sidedly with refrigerating gas around.
If the second sub-air chamber and the first purge zone do not have the connection of direct flow technology, then improve the reliability that cooling effect also improves gas purging device thus.This point such as can realize thus, by making the first tracheae except the segmentation that will cool relative to the sealing of the second sub-air chamber.
This point such as can realize thus, by being provided with one or more sealing between relevant tracheae and adjacent parts.
The segmentation that will cool of the first tracheae can extend between the tracheae segmentation of mutual centering.In other words: on the first air inlet end of the more or less straight line of tracheae, connect above-mentioned segmentation or with a kind of version, it close to ring section or serpentine and lead to another air outlet section of tracheae, the air inlet end of it and tracheae centrally extends.
The first sub-air chamber can be led to by the gas of the first tracheae conveying, extend the first purge zone therefrom.This point is applicable to other embodiment of the first tracheae certainly similarly.
First purge zone equally with the second purge zone can be made up of fire-resistant ceramic material and be had directed or nondirectional hole.Also the first purge zone can be made to be formed by directional hole and the second purge zone is formed with nondirectional hole.Same two purge zone can have directed or nondirectional hole respectively.According to the present invention, described gas purging device can by forming more than two purge zone, wherein other purge zone or by the tracheae air feed together for the first and second purge zone.Or other purge zone can be made by tracheae air feed separately and/or gas/solid mixture.
The structure principle of each purge zone is unessential.If but the second purge zone surrounds the first purge zone with one heart, then obtain compact embodiment.Center, axially extended first purge zone such as can be made to be formed by directed hole at this and be surrounded by more or less columniform, that there is non-directional hole the second purge zone.Two purge zone in air inlet end by sub-air chamber's air feed of each subordinate, wherein can be passed sub-air chamber according to tracheae of the present invention and extend and cooled by the gas be blown into there by another tracheae.
Further feature of the present invention is provided by the feature of dependent claims and other application documents.
Accompanying drawing explanation
The present invention is explained below by means of different embodiments.Illustrate with schematic diagram respectively at this:
Fig. 1: according to the longitdinal cross-section diagram of gas purging device first embodiment of the present invention and the view along X-X
Fig. 2: the longitdinal cross-section diagram of the second embodiment of gas purging device
Parts that are identical or identical function represent with identical label symbol in the accompanying drawings.
Detailed description of the invention
Have cylinder form according to the gas purging device of Fig. 1, it also can be formed on similar taper type ground.Be provided with the first columniform purge zone 10 with one heart with central longitudinal axis M-M, extend to from air inlet end 10u the end 10o that gives vent to anger along its many slit-shaped passage 12.First sub-air chamber 14 is set below the first purge zone 10.
Extend the second purge zone 20 around it with one heart with purge zone 10, have so-called non-directional hole, wherein the refractory material of this second purge zone 20 still extends to from air inlet end 20u the end 20o that gives vent to anger.The second sub-air chamber 24 is extended below cylindrical second purge zone 20 of annular.
Surrounded by plate shell 30 at circumference blowning installation, it is transitioned into bottom 32, and the lower boundary wall body for sub-air chamber 14,24 is formed simultaneously on bottom, and they are separated from each other by thin plate cylinder 34.
Second tracheae 26 leads to the second sub-air chamber 24, second tracheae correspondingly (airtightly) extends through bottom 32 and terminates with the 20u compartment of terrain, bottom of the second purge zone 20, make gas distribute inside the second sub-air chamber 24 thus and can direct into therefrom the second purge zone 20 open wide hole.Then gas through-flow second purge zone 20(is in the accompanying drawings: from bottom to top, namely at gas purging device axially), until leave gas purging device at 20o.
First tracheae 16 leads to the second sub-air chamber 24 equally, wherein it also (airtightly) through bottom 32, but then continue continuously to extend, and extend inside the second sub-air chamber 24 semicirclely, wherein this segmentation represents with label symbol 16t, then be upward through next door (airtightly) with the side of another segmentation 16z next door 34, then lead to the first sub-air chamber 14.
Then the gas carried by pipeline 16 is first in the axially flowing of gas purging device, then turn at 16u, then be basically perpendicular to current flow direction to flow through the second sub-air chamber 24, before gas is discharged in the first sub-air chamber 14, distribute there and through the passage 12 of the first purge zone 10 from air inlet end 10u to the end 10o that gives vent to anger this purge zone 10 through-flow, then leave.
Obtained by above-mentioned structure, the gas carried by the second tracheae 26 streams the first tracheae 16, and the segmentation 16t especially inside the second sub-air chamber 24 also cools thus.
This realizes possibility, cools and the molten metal clamp-oned by gas passage 12 that condenses by means of the gas that tracheae 26 is carried at position 16t, 16z, stops molten metal to infiltrate thus.Segmentation 16t, 16z have the function penetrating insurance of combination.
Identical principle uses in the embodiment shown in Figure 2.But the second tracheae 16 is not here guide through the second sub-air chamber 24 according to the form of ring section.But segmentation 16t extends to the first sub-air chamber 14 through the second sub-air chamber 24 and next door 34 point-blank, upwards connect first purge zone 10 with directional hole thereon.
In both embodiments importantly, the segmentation 16t cooled extends with the axis of the angle of 90 ° ± 45 ° relative to gas purging device, wherein axially define direction, it corresponds to the main flow direction of gas, also the central longitudinal axis M-M of gas purging device is basically parallel to, or in other words: at the air inlet section 10u of purge zone 10,20,20u and the direction between air outlet section 10o, 20o.
Claims (8)
1. a gas purging device, has following technical characteristic:
A) the first purge zone (10), it is by the first tracheae (16) air feed,
B) the first tracheae (16) leads to the first sub-air chamber (14), extends the first purge zone (10) therefrom,
C) the second purge zone (20), it is by the second tracheae (26) air feed,
D) the second tracheae (26) leads to the second sub-air chamber (24), extends the second purge zone (20) from the second sub-air chamber (24),
E) the first and second purge zone (10,20) are in the axially extension of gas purging device,
F) the first tracheae (16) has segmentation (16t), the angle that it is spent with 90+/-45 extends relative to the axis of gas purging device and this segmentation (16t) directs into the first sub-air chamber (14) by the second sub-air chamber (24), makes this segmentation being arranged on the second sub-air chamber (16t) be transported to the gas-circulating of the second sub-air chamber (24) by by the second tracheae (26).
2. gas purging device as claimed in claim 1, wherein the second sub-air chamber (24) is not to the connection of the direct flow technology of the first purge zone (10).
3. gas purging device as claimed in claim 1, wherein the segmentation (16t) of the first tracheae (16) is ring-type or the shape with part ring.
4. gas purging device as claimed in claim 1, wherein the segmentation (16t) of the first tracheae (16) has sinuous trend.
5. gas purging device as claimed in claim 1, wherein the segmentation (16t) of the first tracheae (16) extends between the segmentation of the mutual centering of tracheae (16).
6. gas purging device as claimed in claim 1, wherein the first purge zone (10) are made up of fire-resistant ceramic material and are had directed and/or nondirectional hole.
7. gas purging device as claimed in claim 1, wherein the second purge zone (20) are made up of fire-resistant ceramic material and are had directed and/or nondirectional hole.
8. gas purging device as claimed in claim 1, wherein the second purge zone (20) surround the first purge zone (10) with one heart.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010007126A DE102010007126B3 (en) | 2010-02-05 | 2010-02-05 | gas purging |
| DE102010007126.9 | 2010-02-05 | ||
| PCT/EP2010/007568 WO2011095193A1 (en) | 2010-02-05 | 2010-12-11 | Gas purging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102725427A CN102725427A (en) | 2012-10-10 |
| CN102725427B true CN102725427B (en) | 2015-04-15 |
Family
ID=43923518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080063159.8A Active CN102725427B (en) | 2010-02-05 | 2010-12-11 | Gas purging device |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2531623B1 (en) |
| JP (1) | JP5711269B2 (en) |
| KR (1) | KR20120116456A (en) |
| CN (1) | CN102725427B (en) |
| DE (1) | DE102010007126B3 (en) |
| ES (1) | ES2522532T3 (en) |
| PL (1) | PL2531623T3 (en) |
| WO (1) | WO2011095193A1 (en) |
| ZA (1) | ZA201205605B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899446A (en) * | 2012-11-16 | 2013-01-30 | 重庆赛迪工业炉有限公司 | Purging device |
| PL2942406T3 (en) * | 2014-05-05 | 2016-08-31 | Refractory Intellectual Property Gmbh & Co Kg | Fireproof ceramic gas purge element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763185C (en) * | 1938-06-14 | 1953-02-09 | August Thyssen Huette A G | Method and device for introducing additives into the converter |
| EP0233952A1 (en) * | 1984-12-24 | 1987-09-02 | Steuler-Industriewerke GmbH | Guiding construction for the gas supply pipe of gas-rinsing units for steel ladles |
| US5465943A (en) * | 1990-12-07 | 1995-11-14 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Bottom or wall structure for a metallurgical vessel |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1027582B (en) * | 1953-08-31 | 1958-04-03 | Dynamidon Werk Engelhorn & Co | Process for the production of highly refractory bricks |
| JPS5721667U (en) * | 1980-07-09 | 1982-02-04 | ||
| DE3110204A1 (en) * | 1981-03-17 | 1982-10-14 | Didier-Werke Ag, 6200 Wiesbaden | DEVICE FOR INTRODUCING GASES IN METALLURGICAL VESSELS |
| AT376455B (en) * | 1982-10-06 | 1984-11-26 | Oesterr Amerikan Magnesit | METALLURGICAL OVEN OR METALLURGICAL TANK |
| US4754954A (en) * | 1986-01-29 | 1988-07-05 | Lazcano Navarro Arturo | Refractory device for introducing a gas into a molten metal and a method for making the device |
| DE3716388C1 (en) * | 1987-05-15 | 1988-10-27 | Radex Deutschland Ag | Gas flushing stone |
| JPH03297537A (en) * | 1990-04-13 | 1991-12-27 | Nkk Corp | Ladle bottom-blown porous brick and metal removal method from ladle bottom-blown porous brick |
| DE4103837A1 (en) * | 1991-02-08 | 1992-08-13 | Plibrico Gmbh | Metallurgical vessel blower system - has fireproof perforated brick with charged gas passages contg. fireproof gas washing brick |
| JPH0656690U (en) * | 1992-12-25 | 1994-08-05 | 愛知製鋼株式会社 | Electric furnace for steelmaking |
| US6199836B1 (en) * | 1998-11-24 | 2001-03-13 | Blasch Precision Ceramics, Inc. | Monolithic ceramic gas diffuser for injecting gas into a molten metal bath |
| JP2002028772A (en) * | 2000-07-14 | 2002-01-29 | Daido Steel Co Ltd | Porous plug |
| KR100931159B1 (en) * | 2002-11-21 | 2009-12-10 | 주식회사 포스코 | Forus plug device for ladle |
| DE10305232B3 (en) * | 2003-02-08 | 2004-08-05 | Refractory Intellectual Property Gmbh & Co.Kg | Refractory ceramic gas purging plug |
| JP2006283052A (en) * | 2005-03-31 | 2006-10-19 | Jfe Steel Kk | Gas blown tuyere |
| DE102008029934B3 (en) * | 2008-06-26 | 2009-06-10 | Refractory Intellectual Property Gmbh & Co. Kg | Fireproof ceramic gas purging plug |
-
2010
- 2010-02-05 DE DE102010007126A patent/DE102010007126B3/en active Active
- 2010-12-11 PL PL10798729T patent/PL2531623T3/en unknown
- 2010-12-11 JP JP2012551505A patent/JP5711269B2/en active Active
- 2010-12-11 KR KR1020127019884A patent/KR20120116456A/en not_active Ceased
- 2010-12-11 EP EP10798729.9A patent/EP2531623B1/en active Active
- 2010-12-11 ES ES10798729.9T patent/ES2522532T3/en active Active
- 2010-12-11 WO PCT/EP2010/007568 patent/WO2011095193A1/en active Application Filing
- 2010-12-11 CN CN201080063159.8A patent/CN102725427B/en active Active
-
2012
- 2012-07-25 ZA ZA2012/05605A patent/ZA201205605B/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763185C (en) * | 1938-06-14 | 1953-02-09 | August Thyssen Huette A G | Method and device for introducing additives into the converter |
| EP0233952A1 (en) * | 1984-12-24 | 1987-09-02 | Steuler-Industriewerke GmbH | Guiding construction for the gas supply pipe of gas-rinsing units for steel ladles |
| US5465943A (en) * | 1990-12-07 | 1995-11-14 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Bottom or wall structure for a metallurgical vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201205605B (en) | 2013-05-29 |
| CN102725427A (en) | 2012-10-10 |
| PL2531623T3 (en) | 2015-01-30 |
| KR20120116456A (en) | 2012-10-22 |
| JP5711269B2 (en) | 2015-04-30 |
| DE102010007126B3 (en) | 2011-07-07 |
| JP2013519061A (en) | 2013-05-23 |
| EP2531623B1 (en) | 2014-10-08 |
| ES2522532T3 (en) | 2014-11-14 |
| WO2011095193A1 (en) | 2011-08-11 |
| EP2531623A1 (en) | 2012-12-12 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |