Heat recovery from melted blast furnace slag using fluidized bed Tadaaki Shimizu Daisuke Haga Go Mikami Takayuki Takahashi Kenji Horinouchi Niigata University Japan Blast furnace slag production in Ja - Pdf

139K - views

Heat recovery from melted blast furnace slag using fluidized bed Tadaaki Shimizu Daisuke Haga Go Mikami Takayuki Takahashi Kenji Horinouchi Niigata University Japan Blast furnace slag production in Ja

For one large scale blast furnace production rate of melted slag at about 1500 is 100 150thour Solidified by natural cooling in atmosphere or rapid cooling by water Heat recovery has not yet been done Potential of melted slag as heat source Melted

Tags : For one large scale
Embed :
Pdf Download Link

Download Pdf - The PPT/PDF document "Heat recovery from melted blast furnace ..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

Heat recovery from melted blast furnace slag using fluidized bed Tadaaki Shimizu Daisuke Haga Go Mikami Takayuki Takahashi Kenji Horinouchi Niigata University Japan Blast furnace slag production in Ja






Presentation on theme: "Heat recovery from melted blast furnace slag using fluidized bed Tadaaki Shimizu Daisuke Haga Go Mikami Takayuki Takahashi Kenji Horinouchi Niigata University Japan Blast furnace slag production in Ja"— Presentation transcript:

1 Heat recovery from melted blast furnace slag using fluidized bedTakayuki Takahashi, Kenji HorinouchiNiigata University, Japan 3 heat of about 400 500 cal/g. 5 Meltedslag droplets Slag Slag (solid) Gas Use as material No direct contact between liquid slag and boiler tube.Heat of phase change is recovered through boiler tubes. Removal of solidified slag 7 of 100t/hand 52% 02000400060008000H [kcal/s]T [oC] Heat source Steam 10 Wax feeder 1-hexadecanol(m.p.49, density 800kg/m)Feed rate: 0.04g/sdroplet was about 5mm. Heat transfer media (water)HeaterCapillaryValve syste m Valve syste m Valve open/closecontrolWax reservoi r 11 Feedof BM (light Wax dropletsFluidizing airScrewtransporterMotorFluidized bedFluidizing airBed materialfeedH=0cmPressuretransducers 13 Removal of BM with wax:Continuous withdrawalIntermittent withdrawalBottom part worked as a classifier when operated under intermittent mode.Excess accumulation in the bottom Detection of solid accumulation in the bottom S�pectrum peak of 2~3Hz at height 8.5cm 㪇㪉㪋㪍㪏㪈㪇๟ᵄᢙ㪲㪟㫑㪴䉴䊕䉪䊃䊦䊌䊪䊷 㪉㪅㪌㪺㫄 㪏㪅㪌㪺㫄 㪈㪋㪅㪌㪺㫄 Without acclumuation 17 㪇㪉㪋㪍㪏㪈㪇๟ᵄᢙ㪲㪟㫑㪴䉴䊕䉪䊃䊦䊌䊪䊷 㪉㪅㪌㪺㫄 㪏㪅㪌㪺㫄 㪈㪋㪅㪌㪺㫄 Peak disappeared with the formation of channeling P Accumulation of 100g 19 tonnesof coal annually.