EP1600717A1 - Kühlkörper, insbesondere für die Wände des Oberofens eines Lichtbogenofens oder eines Schachtofens - Google Patents
Kühlkörper, insbesondere für die Wände des Oberofens eines Lichtbogenofens oder eines Schachtofens Download PDFInfo
- Publication number
- EP1600717A1 EP1600717A1 EP05011000A EP05011000A EP1600717A1 EP 1600717 A1 EP1600717 A1 EP 1600717A1 EP 05011000 A EP05011000 A EP 05011000A EP 05011000 A EP05011000 A EP 05011000A EP 1600717 A1 EP1600717 A1 EP 1600717A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- copper
- cooling
- copper alloy
- frame plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000010891 electric arc Methods 0.000 title claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000002826 coolant Substances 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
-
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/24—Cooling arrangements
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/24—Cooling arrangements
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
- F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0045—Cooling of furnaces the cooling medium passing a block, e.g. metallic
- F27D2009/0048—Cooling of furnaces the cooling medium passing a block, e.g. metallic incorporating conduits for the medium
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0056—Use of high thermoconductive elements
- F27D2009/0062—Use of high thermoconductive elements made from copper or copper alloy
Definitions
- the invention relates to a heat sink, in particular for the walls of the upper furnace an electric arc furnace or a shaft furnace, the hot furnace atmosphere is exposed, with a on the hot side forming the heat transfer Layer of copper or copper alloy and on the cold side of trough-shaped Cooling channels formed by the coolant and are guided on the Cold side connected to a coolant supply and a coolant outlet are.
- Such heatsinks replace the formerly common ff lining from around the mid - 1970s and form wall elements in box shape with coolant baffles in the box Inside and with different forms of slag holders on the hot side.
- box-shaped wall elements were replaced by tubular structures.
- the tubes arranged vertically in a so-called tube-to-tube construction, however after a short time was generally replaced by a horizontal arrangement.
- This design had the advantage of mechanical stability, but also the disadvantages high pressure drops and the need to install slag holders, the have only a limited life and often the starting point for cracks in the pipes.
- Such exposed to the hot furnace atmosphere wall elements have only one limited lifespan and are often affected by damage.
- the damage can be divided into cracks on the tube surface, damage by scrap (when charging an electric arc furnace) Damage caused by arcing and spark erosion, damage from oxygen and damage to back plates.
- the initially described heat sink is known from DE 100 00 987 A1.
- the heat sink is made of a forged or rolled ingot of copper manufactured and the cooling channels are formed by trough-shaped rolled products.
- Raw block uneconomical in view of its material costs.
- the resistant increasing power requirements lead to increasing heat loads of the Cold plates inside by tensile stresses and on the outside wall by Compressive stresses are claimed.
- the material-specific Stress limits When exceeding the material-specific Stress limits, the material is plastically deformed, whereby cracks and in severe cases damage the heat sink.
- From DE 29 07 511 C2 is also a full copper or a copper alloy machined heat sink with vertical blind holes by mechanical Deep drilling made.
- the material costs and processing are corresponding uneconomical.
- the invention is based on the object, a claimable design with to create economically inexpensive to produce components, while copper or to save copper alloy and achieve a long service life.
- the stated object is achieved in that one of the hot side assigned, in its thickness determinable plate or frame plate made of copper or Copper alloy, closed by a permanently elastic seal, wherein a plurality of trough-shaped, arranged parallel to each other Longitudinal profiles either in the thickness of the plate or the frame plate or in the permanently elastic sealing are provided as cooling channels and that the Plate or frame plate with one of iron or steel materials, the cold side forming cover plate is tightly connected.
- the variety of trough-shaped longitudinal profiles causes a planar more uniform dissipation of heat to the cooling medium. The load capacity of the heat sink is higher overall.
- the elastic seal consists of thermally conductive Plastic, heat-resistant rubber or a metal membrane.
- the Sealing limited according to the invention the cooling channel or more cooling channels and is thereby cooled by the coolant itself. For this reason, there is one Protection against heat stress, so that such elastic materials permanently can be used.
- the ratio of the wall thicknesses of the cover plate to the plate of copper or copper alloy is equal to or less than 1.
- a relatively thin cover plate or a corresponding claimable cover plate arises from the fact that the cover plate by means of outwardly projecting Ribs is reinforced.
- cover plate with the plate or the frame plate made of copper or a copper alloy welded to the outer circumference are.
- the permanent elastic seal is provided by ribs, that of the plate or the frame plate made of copper or a copper alloy, the cooling channels from the Form long profiles.
- the seal itself can be stiffened and the Elasticity of the seal is permanently maintained.
- the cooling channels in the cover plate and / or the seal can be used as ribs in the Cross section form a triangular shape, a semicircular shape or a trapezoidal shape. in the general are here polygonal or round cross-sectional or cross-sectional mixing forms advantageous.
- a further embodiment be made such that either the cavity within the triangular shape, the semicircular shape or the Trapezoidal form the cooling channels or each lying between two ribs Outbuildings.
- the heat sink 1 is shown vertically. He can also be horizontal or be installed at an angle.
- On the hot side 2 (right) is the Layer 3 of copper or copper alloy.
- 3a is a variety of individual Cooling channels 4 formed with smaller flow cross sections for a coolant 5, which usually consists of water. In a variety of cooling channels are these are formed from long profiles 4a (FIGS. 2A-5B).
- the long sections 4a are located on the cold side 6 (left), on the also a coolant supply line 7 and a coolant discharge 8 are connected, which lead the coolant 5 in the circuit.
- the plate 9 or the frame plate 9a carries the heat to the individual cooling channels 4, which consist of the plurality of trough-shaped, parallel juxtaposed long sections 4a.
- a cooling channel 4 either a cavity 19 (FIG. 3A) of the long profile 4a or an auxiliary space 20 formed by two adjacent long profiles 4a can be used as flow channels.
- the plate 9 or the frame plate 9a are by a permanently elastic seal 10 closed, wherein on the cold side 6 one of iron or steel materials 11 existing cover plate 12 fixed to the plate 9 or the frame plate 9a, for example, on the outer circumference 9b by welding or as drawn by means Screws 12a are connected.
- the ratio of the wall thicknesses of the cover plate 12th to the plate 9 or frame plate 9a made of copper or copper alloy is the same or less than 1.0.
- the permanently elastic seal 10 is made of thermally conductive plastic, heat-resistant rubber or a metal membrane.
- the cover plate 12 (Fig. 1) by means of outward be reinforced protruding ribs 13.
- On the hot side 2 are usually Provided (unspecified) grooves, if necessary, after completion of assembly the application of refractory ramming or spraying masses when using the heat sink 1 in a shaft furnace or when using the heat sink 1 for an electric arc furnace to catch the inevitable melting spatter.
- Fig. 2A except for the layer 3, copper or copper alloy is on the hot side 2, the plate 9 and the frame plate 9a can be seen, and the permanently elastic Seal 10, which in a first embodiment, a plurality of cooling channels 15 forms (FIG. 2B), each between two cross-sectional triangular shapes 16 arise.
- the permanently elastic seal 10 is approximately as a "mat" in one piece executed and is simply inserted into the frame plate 9a and by means of the cover plate 12 closed. In the event that the cooling channels 15 in the plate 9 or the frame plate 9a are provided, the permanently elastic seal 10th also be smooth and flat.
- FIG. 3A shows a second alternative embodiment of the heat sink 1, being on the hot side 2 within the layer 3 of copper or copper alloy in Form of the frame plate 9 a recess is provided, in turn as Matt the permanently elastic seal 10 with a variety of long products 4a inserted and by means of the cover plate 12 made of iron or steel materials 11th and screws 12 is attached.
- This embodiment sees hollow longitudinal profiles 4a before, so that between each two longitudinal profiles 4a coolant through an adjoining room 20 forward and back flow through the cavity 19 of the long sections 4a can.
- longitudinal profiles 4a are located in the recess of the frame plate 9a with a semicircular shape 17 in cross section and form between two long profiles 4a a cooling channel 15.
- the long sections 4a form connecting webs again the permanently elastic sealing as a mat.
- the bases are the flow channels 15 can be seen.
- FIGS. 5A and 5B A fourth alternative is shown in FIGS. 5A and 5B: the long profiles 4a have Trapezoidal shape 18 in cross section, again between each two long profiles 4a a cooling channel 15 for the flow and the interior of the trapezoidal mold 18 for the Return of the coolant (or vice versa) can be connected.
- Heatsink 1 which takes up little space and easy to install.
Abstract
Description
- Fig. 1
- einen senkrechten Querschnitt durch einen stehenden Kühlkörper,
- Fig. 2A
- einen Querschnitt durch den Kühlkörper vor der Ebene der Abdichtung als erste Ausführungsform mit im Querschnitt dreiecksförmigen Langprofilen,
- Fig. 2B
- die zu Fig. 2A gehörende Draufsicht auf die Abdichtung in der in Fig. 2A bezeichneten Schnittebene A-B,
- Fig. 3A
- einen Querschnitt wie Fig. 2A als zweite alternative Ausführungsform mit im Querschnitt dreiecksförmigen, hohlen Kühlkanälen
- Fig. 3B
- die zu Fig. 3A gehörende Draufsicht auf die Abdichtung
- Fig. 4A
- einen Querschnitt wie Fig. 2A als dritte alternative Ausführungsform mit im Querschnitt halbkreisförmigen vollen Langprofilen
- Fig. 4B
- die zu Fig. 4A gehörende Draufsicht auf die Abdichtung,
- Fig. 5A
- einen Querschnitt wie Fig. 2A als vierte alternative Ausführungsform mit im Querschnitt trapezförmigen hohlen Langprofilen und
- Fig. 5B
- die zu Fig. 5A gehörende Draufsicht in der bezeichneten Schnittebene.
Dabei kann als Kühlkanal 4 entweder ein Hohlraum 19 (Fig. 3A) des Langprofils 4a oder ein durch zwei nebeneinander liegende Langprofile 4a gebildeter Nebenraum 20 als Strömungskanäle genutzt werden.
- 1
- Kühlkörper
- 2
- Heißseite
- 3
- Schicht aus Kupfer oder Kupferlegierung
- 3a
- Inneres des Kühlkörpers
- 4
- Kühlkanal
- 4a
- Langprofil
- 5
- Kühlmittel
- 6
- Kaltseite
- 7
- Kühlmittel-Zuleitung
- 8
- Kühlmittel- Ableitung
- 9
- Platte aus Kupfer oder Kupferlegierung
- 9a
- Rahmenplatte
- 9b
- Außenumfang
- 10
- elastische Abdichtung
- 11
- Eisen- oder Stahl-Werkstoff
- 12
- Abdeckplatte
- 12a
- Schrauben
- 13
- Rippen an der Abdeckplatte
- 14
- Rippen an der elastischen Abdichtung
- 15
- Kühlkanal
- 16
- Dreiecksform
- 17
- Halbkreisform
- 18
- Trapezform
- 19
- Hohlraum
- 20
- Nebenraum
Claims (8)
- Kühlkörper (1), insbesondere für die Wände des Oberofens eines Elektrolichtbogenofens oder eines Schachtofens, der der heißen Ofenatmoshäre ausgesetzt ist, mit einer auf der Heißseite (2) den Wärmeübergang bildenden Schicht (3) aus Kupfer oder Kupferlegierung und auf der Kaltseite (6) aus muldenförmigen Produkten gebildeten Kühlkanälen (4), durch die Kühlmittel (5) geführt sind und die auf der Kaltseite (6) an eine Kühlmittel-Zuleitung (7) und eine Kühlmittel-Ableitung (8) angeschlossen sind,
dadurch gekennzeichnet, dass eine der Heißseite (2) zugeordnete, in ihrer Dicke bestimmbare Platte (9) oder Rahmenplatte (9a) aus Kupfer oder Kupferlegierung mittels einer dauerhaft elastischen Abdichtung (10) verschlossen ist, wobei eine Vielzahl von muldenförmigen, parallelen, nebeneinander angeordneten Längsprofilen (4a) entweder in der Dicke der Platte (9) oder der Rahmenplatte (9a) oder in der dauerhaft elastischen Abdichtung (10) als Kühlkanäle (4) vorgesehen sind und dass die Platte (9) oder die Rahmenplatte (9a) mit einer aus Eisen- oder Stahlwerkstoffen (11) bestehenden, die Kaltseite (6) bildenden Abdeckplatte (12) dicht verbindbar ist. - Kühlplatte nach Anspruch 1,
dadurch gekennzeichnet, dass die dauerhaft elastische Abdichtung (10) aus wärmeleitendem Kunststoff, wärmebeständigem Gummi oder aus einer Metallmembrane besteht. - Kühlplatte nach einem der Ansprüche 1 und 2,
dadurch gekennzeichnet, dass das Verhältnis der Wanddicken der Abdeckplatte (12) zu der Platte (9) aus Kupfer oder Kupferlegierung gleich oder kleiner 1 ist. - Kühlplatte nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die Abdeckplatte (12) mittels nach außen vorstehenden Rippen (13) verstärkt ist. - Kühlplatte nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Abdeckplatte (12) mit der Platte (9) oder der Rahmenplatte (9b) aus Kupfer oder einer Kupferlegierung am Außenumfang (9b) verschweißt ist. - Kühlplatte nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die elastische Abdichtung (10) mittels Rippen (14) versehen ist, die der Platte (9) oder der Rahmenplatte (9b) zugewandt, die Kühlkanäle (15) aus den Längsprofilen (4a) bilden. - Kühlplatte nach Anspruch 6,
dadurch gekennzeichnet, dass die Rippen (14) im Querschnitt eine Dreiecksform (16), eine Halbkreisform (17) oder eine Trapezform (18) bilden. - Kühlplatte nach Anspruch 6,
dadurch gekennzeichnet, dass entweder der Hohlraum (19) innerhalb der Dreiecksform (16), der Halbkreisform (17) oder der Trapezform (18) die Kühlkanäle (15) bilden oder die jeweils zwischen zwei Rippen (14) liegenden Nebenräume (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032026A DE102004032026A1 (de) | 2004-05-26 | 2004-05-26 | Kühlkörper, insbesondere für die Wände des Oberofens eines Lichtbogenofens oder eines Schachtofens |
DE102004032026 | 2004-05-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1600717A1 true EP1600717A1 (de) | 2005-11-30 |
EP1600717B1 EP1600717B1 (de) | 2009-03-25 |
Family
ID=34936772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05011000A Not-in-force EP1600717B1 (de) | 2004-05-26 | 2005-05-20 | Kühlkörper, insbesondere für die Wände des Oberofens eines Lichtbogenofens oder eines Schachtofens |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1600717B1 (de) |
AT (1) | ATE426788T1 (de) |
DE (2) | DE102004032026A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010008481A1 (de) | 2009-09-30 | 2011-03-31 | Sms Siemag Ag | Metallurgisches Gefäß |
DE102010008944A1 (de) | 2010-02-23 | 2011-08-25 | SMS Siemag AG, 40237 | Gießpfanne oder Zwischenbehälter zur Aufnahme eines flüssigen Metalls |
DE102013219682A1 (de) * | 2013-09-30 | 2015-04-02 | Siemens Vai Metals Technologies Gmbh | Gefäßunterteil, ein damit ausgebildetes metallurgisches Gefäß sowie Elektrolichtbogenofen und Verfahren zu dessen Betrieb |
DE102013219686A1 (de) * | 2013-09-30 | 2015-04-02 | Siemens Vai Metals Technologies Gmbh | Gefäßunterteil, ein damit ausgebildetes metallurgisches Gefäß sowie Elektrolichtbogenofen und Verfahren zu dessen Betrieb |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4221922A (en) * | 1977-12-06 | 1980-09-09 | Sanyo Special Steel Co., Ltd. | Water cooled panel used in an electric furnace |
EP1077358A1 (de) * | 1999-08-18 | 2001-02-21 | KM Europa Metal Aktiengesellschaft | Kühlelement |
DE10027437A1 (de) * | 2000-06-02 | 2001-12-06 | Sueddeutsche Kalkstickstoff | Abkühlelement für Flüssigschmelzen |
-
2004
- 2004-05-26 DE DE102004032026A patent/DE102004032026A1/de not_active Withdrawn
-
2005
- 2005-05-20 EP EP05011000A patent/EP1600717B1/de not_active Not-in-force
- 2005-05-20 AT AT05011000T patent/ATE426788T1/de active
- 2005-05-20 DE DE502005006922T patent/DE502005006922D1/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4221922A (en) * | 1977-12-06 | 1980-09-09 | Sanyo Special Steel Co., Ltd. | Water cooled panel used in an electric furnace |
EP1077358A1 (de) * | 1999-08-18 | 2001-02-21 | KM Europa Metal Aktiengesellschaft | Kühlelement |
DE10027437A1 (de) * | 2000-06-02 | 2001-12-06 | Sueddeutsche Kalkstickstoff | Abkühlelement für Flüssigschmelzen |
Also Published As
Publication number | Publication date |
---|---|
EP1600717B1 (de) | 2009-03-25 |
DE502005006922D1 (de) | 2009-05-07 |
DE102004032026A1 (de) | 2005-12-15 |
ATE426788T1 (de) | 2009-04-15 |
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