PowderRotary valveBlower

p/L

U

UCHCH-UT=Gp(1-CH)0.77f= 2250D(- 4.7CH-1)[UCHCH-UT]2 p/L

U

MpfUSALTA ={110 ( 1440x + 1. 96)}{USALTgD} ( 1100x + 2. 5)

Mp

D

-3- Ufs=QfA

Ufp=QpA Uf=QfA =Ufs

Up=QpA(1-) =Ups1-

UslipUrel=Uf-UpUslip UT UT

Mf=AUff Mp=AUp(1-)p MpMf=Up(1-)pUff

p1-p2= 12fU2 f + 12p(1-) U2 p + FfwL + FpwL

+fLgsin+pL(1-)gsin -4- Uf 1.5USALT USALT> UCH Uf 1.5UCH

FpwL=0.057GLgD FpwL= 2fp(1-)pU2pLD= 2fpGUpLD Up=Uf(1-0.0638d0.3p0.5p ) fp= 38fpCDDdp (Uf-UpUp)-5-

CD

-6-

-7-Slurry tankPumpLog(Uf)USALTUtrLiquid onlySlurryLog(p/L)Saltation Heterogeneous Homogeneous

Utr= 11.9( UTD)1/2d1/4p D

-8-Shear rate,(s-1)Shear stress, DilatentNewtonianPseudoplasticPlastic

Shear rate,(s-1)Shear stress, ThixotropyInstantaneous Shear rate,(s-1)Shear stress, AntithixotropyInstantaneousUc=FL[2gD(p/f-1)]1/2 FL dp

Uc= 3.12( 1-)0.186(dpD )1/6[2gD(p/f-1)]1/2

-9-P1P2L

p1-p2= 12mU2f+ FmwL +mLgsin Fmw= 4mWLDmw

if-(pL )f1fgim-(pL )m1fgjm-(pL )m1mg -10-C1C2C3Pure fluid(vehicle)Effective fluidUmjm

im

jm

im=if+(Sm-1) fn(VmV50 )

0.22(VmV50 )1.7 V50

-PL =m'g+Ffw+Fpw m'

Fpw