CN105066711B - Ferroalloy roasting plant and baking method - Google Patents
Ferroalloy roasting plant and baking method Download PDFInfo
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- CN105066711B CN105066711B CN201510501765.8A CN201510501765A CN105066711B CN 105066711 B CN105066711 B CN 105066711B CN 201510501765 A CN201510501765 A CN 201510501765A CN 105066711 B CN105066711 B CN 105066711B
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Abstract
The present invention discloses a kind of ferroalloy roasting plant and baking method, to be invented the problems such as solving prior art high energy consumption.Including：High-order ferroalloy charging system, ferroalloy roaster and ferroalloy hopper；One track, the high-order ferroalloy charging system of connection and ferroalloy hopper, ferroalloy roaster, are arranged on the track side between high-order ferroalloy charging system, ferroalloy hopper；Struggle against controlled along rail running in mobile set：The splicing at high-order ferroalloy charging system；Travelled after splicing to ferroalloy roaster side ferroalloy is toasted by ferroalloy roaster；Travelled after baking to ferroalloy hopper and pour out the ferroalloy after baking.The said equipment and method can realize few ferroalloy baking, combustion gas and power consumption is small, temperature drop is small, qualified, stable, the uniform high temperature ferroalloy supply needed for realizing every stove.
Description
Technical field
The present invention relates to belong to field of steel-making, more particularly to a kind of efficient ferroalloy roasting plant and baking method.
Background technology
Steel is the basic industry of national economy, and under the fast-developing situation of national economy, China crude steel yield is in recent years
Improve constantly, 2014, China's crude steel annual production statistics reaches 8.23 hundred million tons, and outlet is up to more than 8,000 ten thousand tons, equivalent to U.S.
The annual crude steel yield of state.
The purpose that ferroalloy needed for steel-making is toasted has：
(1) moisture removal is removed, to reduce the gas content in steel, it is ensured that steel quality；
(2) ferroalloy is easy to fusing, reduce and absorb heat, shorten converter smelting cycle, it is corresponding to improve steel-making yield；
(3) prevent during cold conditions ferroalloy adds molten steel and produce splash, cause unnecessary iron loss.
It is the conventional meanses for realizing ferroalloy quick baking to build bakeout oven for ferro-alloy, and bakeout oven for ferro-alloy is STEELMAKING PRODUCTION
One of important process equipment in technique, is mainly used in drying ferroalloy such as ferromanganese, silicomanganese, ferrosilicon, the ferrochrome of deoxidation alloying
Deng, and reach design baking mesh in certain hour (depending on the smelting cycle and baking speed that need to specifically combine converter)
Mark temperature (normal 400~600 DEG C).In addition, bakeout oven for ferro-alloy also has ferroalloy bulk material intermediate storage, the work(of turnover
Energy.
Domestic and international iron and steel enterprise is general to build from converter position farther out, by go-cart or fork after baking bakeout oven for ferro-alloy in
After car is transported to steel smelting furnace, is concentrated in converter tapping process and added in ladle.The roasting mode of conventional ferroalloy be
Multiple burners are installed in ferroalloy high hopper, the purpose of baking is reached by the flame of burner combustion, this roasting mode is normal
The problems such as burner is easier to iron alloy material and the easy scaling loss of feed bin around fire extinguishing and combustion flame position occurs.Due to converter tapping
The working system of process alloying is interruption, and the bakeout oven for ferro-alloy working system of routine is continuous, is existed in working system
Larger conflict.In addition, ferroalloy per stove addition be only 10~15kg/t steel, and bakeout oven for ferro-alloy be then directed to it is all
Ferroalloy high hopper (the ferroalloy amount needed for meeting workshop production at least 8 hours) is continuously toasted, ferroalloy baking
Production aequum is far longer than, is caused ferroalloy to toast and be there is the waste of substantial amounts of combustion gas, electric energy etc., technique and economically deposited
In certain irrationality.
The content of the invention
To overcome drawbacks described above, the present invention to provide a kind of ferroalloy roasting plant and baking method, can realize that ferroalloy dries
Roasting amount less, combustion gas and power consumption is small, temperature drop is small, the temperature needed for realizing every stove is qualified and uniform ferroalloy supply.
To reach above-mentioned purpose, struggled against in ferroalloy baking mobile set of the present invention, including a mobile trolley used body, described
The mobile trolley used concentration bucket for being provided with opening upwards, it is described it is mobile trolley used on be provided with drive device of tumbling, described inclines
Turn over drive device can drive concentration bucket rotation make it be 0-90 degree with horizontal angle；It is provided with described concentration bucket side of tumbling
Controlled discharge baffle.
Preferably, it is described it is mobile trolley used be provided with bearing of tumbling, described concentration bucket is hinged on bearing upper end of tumbling；Institute
The drive device of tumbling stated is in the described mobile trolley used driving cylinder set and concentration bucket between.
Preferably, described concentration bucket includes：The concentration bucket body of opening upwards, concentrates the medial surface of bucket to be provided with cast
Material, corundum plate is provided with the castable for concentrating bucket bottom.
Preferably, described corundum plate includes continuous setting tilting section and horizontal segment；Wherein, described tilting section is located near
Discharging opening side, horizontal segment is located at remote material mouth side.
To reach above-mentioned purpose, ferroalloy roasting plant of the present invention, including：High-order ferroalloy charging system, ferroalloy dry
Roasting device and ferroalloy hopper；One track, the high-order ferroalloy charging system of connection and ferroalloy hopper；, ferroalloy roaster,
It is arranged on the track side between high-order ferroalloy charging system and ferroalloy hopper；
Also include being struggled against in above-mentioned ferroalloy baking mobile set, struggle against controlled along rail running in described mobile set：
Splicing at high-order ferroalloy charging system；Travelled after splicing to ferroalloy roaster side is carried out by ferroalloy roaster to ferroalloy
Baking；Travelled after baking and pour out the ferroalloy after baking to ferroalloy hopper.
Preferably, described ferroalloy roaster, including a support, baking plate is provided with described support side level,
Apparatus for baking is provided with the lower surface of described baking plate.
Preferably, described ferroalloy roaster, including a support, baking plate is hinged with described support side；
The lower surface of described baking plate is provided with apparatus for baking；On support or support side is provided with drive device, described driving dress
Putting the rotation of the baking plate described in driving makes it be in 0-90 degree angles with horizontal line.
To reach above-mentioned purpose, ferroalloy baking method of the present invention, described method is used for ferroalloy described above is toasted
Struggled against in mobile set and controlled do not have rail running：The splicing at high-order ferroalloy charging system；Travelled after splicing to ferroalloy roaster
Ferroalloy is toasted by ferroalloy roaster side；The traveling that struggled against in mobile set after baking is to ferroalloy hopper by after baking
Ferroalloy is poured out.
To reach above-mentioned purpose, ferroalloy baking method of the present invention, described method is used for ferroalloy described above is toasted
Struggle against controlled along rail running in mobile set：
The splicing at high-order ferroalloy charging system；
Travelled after splicing to above-mentioned ferroalloy roaster side；
The cover plate of described ferroalloy roaster rotates and covers on the charging aperture in described mobile set on bucket；Described
Ferroalloy roaster jets out flames carries out baking 5-30 minutes to ferroalloy；
The cover plate of described ferroalloy roaster rotates and opens；
Struggle against traveling to ferroalloy hopper after baking in mobile set；
Mobile set in bucket drive device of tumbling drive and concentrate bucket to tumble and pour out the ferroalloy after baking.
To reach above-mentioned purpose, ferroalloy roaster of the present invention, described ferroalloy roaster, including a support, in institute
The support side stated is hinged with baking plate；The downward multiple burners of spout are provided with below described baking plate, described is every
Individual burner is connected with gas pipeline；On support or bracket side is provided with drive device, described drive device drives described
Baking plate rotation makes it be in 0-90 degree angles with horizontal line.
Ferroalloy needed for the every stove of converter is carried out quantitatively efficiently baking by the present invention, and baking transports ferroalloy after terminating online
Ferroalloy hopper top is transported to, then the qualified ferroalloy of high temperature in bucket will be concentrated to add in ladle by tilting mechanism.Entirely
Process ferroalloy baking is few, combustion gas and power consumption is small, temperature drop is small, and ferroalloy material baking temperature is uniform, realizes
Qualified, stabilization high temperature ferroalloy supply needed for per stove, reduce further the tapping temperature of converter.The present invention has throwing
The characteristics of providing low, rational technology, low operating cost, solves many iron and steel enterprises instantly and realizes inexpensive, efficient iron well
The problem of alloy baking technique；There is unrivaled advantage compared with the conventional bakeout oven for ferro-alloy means of production, reach
Invest low, rational technology, the low multiple action of operating cost.
Brief description of the drawings
Fig. 1 is present system structural representation.
Fig. 2 is bucket in the mobile set in baking process.
Fig. 3 is the embodiment schematic diagram that struggled against in mobile set.
1, converter；2, hopper；3, swivel chute；4, concentrate bucket；5, it is mobile trolley used；6, ladle；7, buggy ladle；8, dry
Roasting device；9, weighing cart；10, high-order ferroalloy charging system；11, rotary shaft；12, rotation cover；13, castable；14, it is electro-hydraulic
Push rod；15, corundum plate；16, bearing of tumbling；17, hydraulic cylinder；18, cable drum.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
It is shown in Figure 3, struggled against in mobile set of the present invention, it includes one mobile trolley used 5, and it can be electronic, or its
What its mode drove, it is mobile trolley used can be with the controlled place for stopping at needs；Opening upwards are provided with described mobile trolley used 5
Concentration bucket 4, drive device of tumbling is additionally provided with described mobile trolley used 5, described drive device of tumbling can drive concentration
Bucket rotation makes it be in 0~90 degree of angle with horizontal line, wherein, during positioned at relatively low inclination angle, at such as 0~15 degree, concentrate bucket
Horizontality is substantially at, is easy to from high hopper splicing, is easy to walk and toasts；During inclination angle higher, such as 45
At~90 degree, it is easy to concentrate bucket discharging or stirs evenly the material in concentration bucket.Discharged or by after baking to be struggled against in domination set
Material is stirred evenly, and controlled discharge baffle is provided with described concentration bucket side of tumbling, and the controlled discharge baffle can receive control signal,
To be opened or closed in the suitable time, the material in concentration bucket is set to pour out or close concentration bucket to prevent material from spilling.
Wherein, drive device of tumbling can be hydraulic cylinder, electric cylinder, cylinder or other forms.
Wherein, controlled discharge baffle can control discharge baffle for hydraulic cylinder, electric cylinder, cylinder or other forms
Open or close.
Wherein, controlled discharge baffle can be for rotation, left rotation and right rotation, or other forms be realized up and down.
Embodiment 1
If Fig. 3 is the embodiment that portable concentration of the invention struggles against, wherein, bucket includes one electronic mobile trolley used 5 in mobile set；
It is mobile trolley used can be with the controlled place for stopping at needs；It is described it is mobile trolley used on be provided with bearing 16 and hydraulic cylinder 17, it is described
The concentration bucket side bottom that closely discharges of opening upwards be hinged on the upper end of bearing 16, the upper end of hydraulic cylinder 17 is hinged on concentration bucket and far goes out
Material side bottom.When initial, hydraulic push rod does not do work, and concentrates bucket to be in basic horizontal state, be easy to from high hopper splicing,
It is easy to walk and toasts；When hydraulic push rod does work, concentrate bucket to be pushed out skewed, be easy to concentrate bucket discharging or make concentration
Material in bucket is stirred evenly.The discharge outlet of bucket is being concentrated, discharge baffle is being controlled by Electrohydraulic push rod 14, the discharge baffle is electro-hydraulic
Can be opened or closed in the suitable time under the control of push rod so that concentrate bucket in material pour out or close concentration struggle against in case
Only material spills.
Embodiment 1 is finished.
Of the invention to concentrate bucket body to be welded by steel plate, the face of liner three sets castable 13 (high temperature resistant~1000 DEG C),
Bottom uses two-part, and oblique section ensures that the ferroalloy after baking is smoothly poured into hopper, and horizontal segment then mainly stores ferroalloy
Material.Concentrate bucket bottom to be divided into two-layer, the superiors are corundum plate 15 (10mm is thick), possess high temperature resistant and small excellent of coefficient of friction
Point, corundum plate base plate is divided into horizontal segment and oblique section, and the purpose of this set is primarily to the ferroalloy after satisfaction baking can be suitable
Slip into hopper, elephant trunk or oscillating chute equipment are increased without extra.Castable structure is then used under corundum plate.
Embodiment 2
The present embodiment ferroalloy roaster, including a support, baking plate is hinged with described support side；Described
The downward multiple burners of spout are provided with below baking plate, each described burner is connected with gas pipeline；On support or
Bracket side is provided with drive device, and described drive device drives 0~90 degree of rotation of described baking plate.
Wherein, drive device can be hydraulic cylinder, electric cylinder, cylinder or other forms.
Embodiment 2 is finished.
Embodiment 3
The ferroalloy roaster of the present embodiment, including a support, being horizontally disposed with described support side has baking plate；
Baking plate lower surface is provided with apparatus for baking；Described apparatus for baking is to be arranged on below baking plate to be provided with burner, described burning
Mouth is connected with gas pipeline.
Embodiment 3 is finished.
Embodiment 4
The method of the present invention is：
1) weighing cart is added into the concentration bucket on mobile trolley used after collecting all alloys；
2) it is mobile trolley used add material after run to roaster lower section stop；
3) the baking lid upset of roaster declines, and roaster proceeds by baking operation.When ferroalloy is baked to target temperature
Degree and converter is when will tap, the ferroalloy baking end of job, the baking lid upset of roaster rises, mobile trolley used to steel-making
Stove direction running；The wherein time of roaster baking can adjust according to factors such as baking temperature, the how many, qualities of material of material
It is whole；
4) when mobile trolley used operation is to hopper position, stop.The mobile trolley used hydraulic pressure that carries out is tumbled to 50 ° -70 °, electricity
Liquid putter action opens rotation cover, so as to ferroalloy material is unloaded to hopper.Material is subsequently added rotation by hopper
Turn chute, most the direct motion of ferroalloy material is added in ladle swivel chute at last.
5) concentrate after the dischargings of ferroalloy material whole terminate in bucket, concentrate bucket to tumble resets, meanwhile, Electrohydraulic push rod drives and revolves
Hub cap sheet reset, it is then, mobile trolley used to be returned to ferroalloy charging system direction.
This method need to only be toasted to single stove ferroalloy requirement every time, concentrate the volume of bucket only to meet single stove ferroalloy
Storage.Combustion gas (based on coal gas of converter) consumption nearly 60% can be significantly reduced, power consumption nearly 50% is reduced, life is considerably reduced
Operating cost is produced, economic benefit is improve.
Embodiment 4 is finished
Embodiment 5
The present embodiment is improved on the basis of embodiment 4：I.e. after a half period is baked to, roaster stops making
Industry, baking lid upset is upward, mobile trolley used removal.It is mobile trolley used to be tumbled, stir evenly operation, after the completion of it is mobile trolley used return dry
Roasting position, proceeds follow-up baking operation.When ferroalloy is baked to target temperature and converter will tap, ferroalloy
The baking end of job, the baking lid upset of roaster rises, mobile trolley used to converter direction running.
Embodiment 5 is finished
Embodiment 6
Referring to Fig. 1, the ferroalloy roasting plant of the present embodiment, including：High-order ferroalloy charging system 10, ferroalloy baking
Device 8 and ferroalloy hopper 2；One track, the high-order ferroalloy charging system 10 of connection and ferroalloy hopper 2, ferroalloy baking
Device 8, is arranged on the track side between high-order ferroalloy charging system 10, ferroalloy hopper 2；
Also include bucket in above-mentioned ferroalloy baking mobile set, struggled against in described mobile set controlled is carried out by track：
Splicing at high-order ferroalloy charging system；Travelled after splicing to ferroalloy roaster side is carried out by ferroalloy roaster to ferroalloy
Baking；Travelled after baking to ferroalloy hopper and pour out the ferroalloy after baking.
The course of work of the invention is illustrated in conjunction with Fig. 1：Before tapping, the row of buggy ladle 7 for placing ladle 6 is extremely made steel
Stopped after stove 1.The species and weight of ferroalloy according to needed for every stove steel, by the weighing cart in high-order ferroalloy charging system 10
9 weigh, storage, final operation to discharging position.Now, it is placed with and concentrates mobile trolley used the 5 of bucket 4 to run to weighing cart just
Lower section, weighing cart 9 unloads to after concentrating bucket 4 iron alloy material, and mobile trolley used 5 move to the direction of converter 1, when its operation to baking
During roasting 8 position of device, stop, the baking lid upset of roaster 8 declines, the suitable for reading of bucket 4 will be concentrated to cover, meanwhile, roaster 8 is lighted a fire
Baking operation.After baking half the time, roaster 8 stops, and baking plate upset is upward, and mobile trolley used 5 remove, meanwhile, hydraulic cylinder
17 drive concentration bucket 4 to be tumbled around bearing 16 of tumbling, and ferroalloy material is effectively stirred evenly, and after stirring evenly the end of job, hydraulic cylinder 17 is answered
Position, mobile trolley used 5 open be back to baking position.The baking lid upset of roaster 8 declines, and the suitable for reading of bucket 4 will be concentrated to cover, meanwhile, dry
The roasting igniting of device 8 baking operation.It is mobile trolley used to the side of converter 1 when ferroalloy is baked to target temperature and converter 1 will tap
To motion.
When mobile trolley used 5 operation to hopper 2, stop.Hydraulic cylinder 17 drives concentrates bucket 4 around bearing 16 of tumbling to receiving
The direction of hopper 2 is tumbled, meanwhile, Electrohydraulic push rod 14 is rotated cover plate 12 and opens discharge port, and ferroalloy material is along corundum plate 15
Base plate is unloaded to hopper 2.The bottom valve of hopper 2 is opened, and material is added to the ladle 6 on buggy ladle 7 by swivel chute 3
It is interior.
In summary, the present invention has following effect：
1. the invention concentrates bucket using mobile trolley used transport ferroalloy, meets the ferroalloy storage of every stove and transports, entirely
Process can realize remote operation, greatly reduce the labour intensity of Field Force；
2. the invention only carries out baking operation using roaster to ferroalloy needed for every stove, is dried different from conventional ferroalloy
The operating costs such as oven, combustion gas, electric energy are substantially reduced；
3. the invention concentrates bucket using tilt bed, and effectively ferroalloy material is stirred evenly in baking process, it can be ensured that iron is closed
Golden baking temperature is uniform, and impermeable phenomenon is toasted in the absence of ferroalloy.
Claims (10)
1. struggled against in a kind of ferroalloy baking mobile set, an including mobile trolley used body, it is described it is mobile trolley used on be provided with out
Mouthful upward concentration bucket, it is described it is mobile trolley used on be provided with drive device of tumbling, described drive device of tumbling can drive collection
The rotation of middle bucket makes it be 0-90 degree with horizontal angle；Controlled discharge baffle is provided with described concentration bucket side of tumbling.
2. struggled against in ferroalloy baking mobile set as claimed in claim 1, it is characterised in that described mobile trolley used to be provided with
Tumble bearing, described concentration bucket is hinged on bearing upper end of tumbling；Described drive device of tumbling is described mobile trolley used
And concentrate the driving cylinder set between bucket.
3. struggled against in ferroalloy baking mobile set as claimed in claim 1, it is characterised in that described concentration bucket includes：Open
The upward concentration bucket body of mouth, concentrates the medial surface of bucket to be provided with castable, and corundum is provided with the castable for concentrating bucket bottom
Plate.
4. struggled against in ferroalloy baking mobile set as claimed in claim 3, it is characterised in that described corundum plate includes continuous
Tilting section and horizontal segment are set；Wherein, described tilting section is located at nearly discharging opening side, and horizontal segment is located at remote material mouth side.
5. a kind of ferroalloy roasting plant, it is characterised in that including：High-order ferroalloy charging system, ferroalloy roaster and iron
Alloy hopper；One track, the high-order ferroalloy charging system of connection and ferroalloy hopper；, ferroalloy roaster is arranged on height
Track side between position ferroalloy charging system and ferroalloy hopper；
Also include being struggled against in ferroalloy baking mobile set as claimed in claim 1, struggle against controlled along track in described mobile set
Traveling：The splicing at high-order ferroalloy charging system；Travelled after splicing to ferroalloy roaster side by ferroalloy roaster to iron
Alloy is toasted；Travelled after baking and pour out the ferroalloy after baking to ferroalloy hopper.
6. ferroalloy roasting plant as claimed in claim 5, it is characterised in that described ferroalloy roaster, including one
Frame, baking plate is provided with described support side level, and apparatus for baking is provided with the lower surface of described baking plate.
7. ferroalloy roasting plant as claimed in claim 5, it is characterised in that described ferroalloy roaster, including one
Frame, baking plate is hinged with described support side；Apparatus for baking is provided with the lower surface of described baking plate；On support or
Support side is provided with drive device, and described drive device drives described baking plate to rotate makes it be pressed from both sides in 0-90 degree with horizontal line
Angle.
8. a kind of ferroalloy baking method, it is characterised in that described method is that ferroalloy as claimed in claim 1 is toasted and used
Struggle against controlled along rail running in mobile set：The splicing at high-order ferroalloy charging system；Travelled after splicing to ferroalloy roaster
Ferroalloy is toasted by ferroalloy roaster side；The traveling that struggled against in mobile set after baking is to ferroalloy hopper by after baking
Ferroalloy is poured out.
9. a kind of ferroalloy baking method, it is characterised in that described method is that ferroalloy as claimed in claim 1 is toasted and used
Struggle against controlled along rail running in mobile set：
The splicing at high-order ferroalloy charging system；
Travelled after splicing to the ferroalloy roaster side described in claim 5；
The cover plate of described ferroalloy roaster rotates and covers on the charging aperture in described mobile set on bucket；Described iron is closed
Golden roaster jets out flames carries out baking 5-30 minutes to ferroalloy；
The cover plate of described ferroalloy roaster rotates and opens；
Struggle against traveling to ferroalloy hopper after baking in mobile set；
Mobile set in bucket drive device of tumbling drive and concentrate bucket to tumble and pour out the ferroalloy after baking.
10. a kind of ferroalloy roaster, it is characterised in that described ferroalloy roaster, including a support, in described support
Side is hinged with baking plate；Be provided with the downward multiple burners of spout below described baking plate, described each burner with
Gas pipeline is connected；On support or bracket side is provided with drive device, described drive device drives described baking plate rotation
Turn to make it be in 0-90 degree angles with horizontal line.
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| CN201510501765.8A CN105066711B (en) | 2015-08-14 | 2015-08-14 | Ferroalloy roasting plant and baking method |
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| CN201510501765.8A CN105066711B (en) | 2015-08-14 | 2015-08-14 | Ferroalloy roasting plant and baking method |
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| CN108662854B (en) * | 2017-03-29 | 2020-03-31 | 鞍钢股份有限公司 | Method for heating alloy by using high-temperature flue gas of converter |
| CN108118163B (en) * | 2017-11-30 | 2021-05-04 | 安徽省恒伟铋业有限公司 | Automatic bismuth smelting feeding system |
| CN109230190B (en) * | 2018-09-26 | 2024-07-19 | 甘肃萃英大农科技有限公司 | Fruit conveying device for fruit online visual detection and weighing equipment |
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| CN202254865U (en) * | 2011-10-09 | 2012-05-30 | 云南泛亚能源科技有限公司 | On-line alloy baking device for steel making |
| CN202278577U (en) * | 2011-10-28 | 2012-06-20 | 济钢集团国际工程技术有限公司 | Waste steel sheet transition vehicle |
| CN102853678B (en) * | 2012-08-28 | 2014-06-18 | 芜湖新兴铸管有限责任公司 | Online baking device for alloy feeding trolley |
| CN203997921U (en) * | 2014-08-26 | 2014-12-10 | 铜陵浩荣华科复合基板有限公司 | A kind of conveying carrier hydraulic hoist |
| CN205027131U (en) * | 2015-08-14 | 2016-02-10 | 中冶华天工程技术有限公司 | Ferroalloy toasts and toasts equipment with concentrated fill of removal and ferroalloy |
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