KR法铁水脱硫主体设备介绍及有关计算

200070KRKRKRKRIntroductiontoMainEquipmentsofHotMetalDesulphurizationandRelatedCalculationLiuLiuChenLimingShanghaiBaoshanIron&SteelCorp.AbstractIncombinationwiththestainlesssteelmodernizationrevampprojectintheNo.1SteelPlantofBaoshanSteelthispaperreviewsthefeatureoftheKRdesulphurizationprocessandtheinjectiondesulphurizationprocessandcompareswitheachotherandintro-ducesthestructuralprincipleofthemainequipmentsfortheKRprocess.Inthemeanwhileitintroducesthemethodforcalculatingthenecessarystirringpoweraswellasthepracticalex-ample.KeywordsKRdesulphurizationprocessstructureoftheequipmentstirringpower1KR1KR90%KR2KR3mm5mm80500140t/a39.6389～660KR3KR3～5a4KR6120028184SteelmakingAug.2002Vol.18No.4KR2KR1979KR0011KR100tKR70t/～90t/150kW1150mm1050mm700mmKRKR2.12.2111.2.3.4.5.6.7.8.9.1234586117102714KR29.10.11.9382.36～8txyθxyθ3KR23KRKR3.1NL=Tω10001NL/kWT/Nmω/rs-1NL=KNρnj3d510002ρ/kgm-3nj/rs-1d/mKN81182KR1/t-1150～180150～1702/rmin-1/mm/100～120Max:150Φ1200×850×51020050～120Φ1400×855×6772003/kW/V400180t380300160t30001:124/t/mmin-1/mm/kW/mmin-1/kW3651140045814MPa×Φ63mm×100mm355710037213.5835MPa×Φ50mm×25mm5/min/t/mmin-1/kW/t1406+9153.7VVVF16.611407.553.7VVVF8×2KN=ARe+B103+1.2×Re0.66103+3.2×Re0.[]66w×Z()D0.35+bD×sinθ1.23θ/º90ºAA=14+bD×670dD-0.()62+[]1854BB=101.3-4bD-0.52-1.14dD5ww=1.1+4bD-2.5dD-0.()52-7b()D46b/mD/mZ/mReRe=ρnjd2µ7µ/Pasµ=5×10-3NLNB=k/NLη8NB/kWnj=914KR1.55r/s2～8k5.51η0.8KRN=NB×nn()Bα9NKR/kWnB/rs-1nj=1.55n/rs-1α1.65～31.65KRn=150r/min2～8nj=nB=1.55r/sNB44nj=nB=1.55r/sρ=6500kg/m3d=1.127m1.2+1.053/2=1.127mθ=90º2×b=1.7m42b=2×0.85=1.7mD=3.201m3.29+3.112/2=3.201mZ=3.017mµ=5×10-3Pask=5.51η=0.82～8A=134.15B=7.85ω=2.61Re=2557039.53NB=187.83kW9NB=187.83kWnB=1.55r/sn=150r/min=2.5r/sα=1.659N=413.36kWn=120r/min9N=286.04kW3.2N=Pv1000ηkW10P/Nv/ms-1ηη=0.6～0.7P=343000Nv=5m/min=0.0833m/s1N=Pv1000η=343000×0.08331000×0.7=40.8kW37kW260218565162560min90t240mm×240mm0.9m/min57min60min436min660min90t180mm×180mm1.5m/min61min60min425minLF40min43min60min63min61min565LFLFtLFO6LFtLFO2001-09-2420P=352800Nv=5m/min=0.0833m/s1N=Pv1000η=352800×0.08331000×0.7=42kW45kW4KR2001-10-086218