C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/8
C10J 3/46 (2006.01) C10J 3/50 (2006.01)
Patent
CA 1057500
ABSTRACT OF THE DISCLOSURE Charges of finely comminuted solid fuel particles are ad- mitted into an oxygen-containing gasification chamber through a sys- tem of locks having an uppermost bunker which is maintained at at- mospheric pressure, an intermediate bunker wherein the pressure al- ternately rises and drops, a lowermost bunker wherein the pressure is always above atmospheric, a metering device which connects the lowermost bunker with the gasification chamber, a pipe which can supply compressed inert gas into the intermediate bunker after the latter has received a charge of fuel particles from the uppermost bunker but before the intermediate bunker is respectively sealed from the uppermost bunker and connected with the lowermost bunker, and a pipe which evacuates compressed gas from the intermediate bunk- er subsequent to transfer of a charge into the lowermost bunker. The thus evacuated compressed gas is fed to a pneumatic conveyor which supplies charges of fuel particles from a main source to the upper- most bunker while the latter is sealed from the intermediate bunker. The gas evacuating pipe can contain a storage tank for compressed- gas so that the admission of fuel particles into the uppermost bunk- er can be timed independently of the gas pressure in the intermedi- ate bunker. - 1 -
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