| 摘要 |
A method of determination and monitoring of a fuel mass stream supplied for partial oxidation of fine-grain up to pulverized fuels to a gasifier includes determining a total density rho tot of a fuel stream conveyed by a fluidizing gas in an outlet conduit of a fuel bin with the aid of a radiometric density measurement, subsequently determining a total volume stream qvtot of said stream by a differential pressure measurement, determining a difference between volume streams of a fluidizing gas supplied to the fuel bin qvgas supplied and discharged from the latter qvgas discharged by differential pressure measurements, determining a volume stream of the fluidizing gas qvgas fuel in accordance with the following equation: qvgas=(qvgas supplied-qvgas discharged)-q'vgas', determining the volume stream of the gas part q'vgas in accordance with the following equation: <IMAGE> wherein rho K is the density of the fuel, rho gas (b) is operational density of the fluidizing gas at a pressure and temperature in the fuel bin, and q'mk is the fuel volume stream determined by weighing in the fuel bin, introducing a density of the fluidizing gas rho gas as a material-dependent constant; and finally determining from the thus obtained values the fuel mass stream qmk in accordance with the following equation: qmk=( rho totxqvtot)-( rho gasxqvgas).
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