Patent ID: 7607398

Claim:
A method for constant infeed of pulverized fuels under pressure into gasification reactors, comprising: supplying the pulverized fuel alternately from an operational bunker through pressurized sluices to a metering tank; introducing a fluidizing gas through a turbulence plate into a bottom of the metering tank, to form a dense fluidized bed from the pulverized fuel and fluidizing gas, with a transport pipe immersed in the fluidized bed horizontally or vertically, feeding the fuel from the metering tank continuously through the transport pipe via a burner to a pressurized gasification reactor or other component, wherein fuel flow is measured in the transport pipe between the metering tank and the gasification reactor; and separately from the fluidizing gas, feeding in auxiliary gas in an immediate vicinity of a transport pipe inlet into the metering tank below a level control of the pulverized fuel in an amount based on the value of the measured fuel flow obtained, wherein the amount of auxiliary gas fed in for a constant fuel flow is set by a control fitting.