FLUIDIZED BED GASIFIER DEVICE AND FUEL SUPPLY METHOD

The present invention provides a fluidized bed gasifier device and a fuel supply method of a fluidized bed gasifier device using the fluidized bed gasifier device. The fluidized bed gasifier device comprises: a fluidized bed gasifier having an air inlet formed on the lower portion thereof and fluid sand embedded therein; a fuel storage and injection unit composed of a fuel bunker having a solid fuel, which is injected to the fluidized bed gasifier, stored therein, a first compressed air tank connected to the fuel bunker, a pressure regulating valve installed between the fuel bunker and the first compressed air tank, a pressure gauge installed on the fuel bunker, and a particle measurement sensor; and a fuel delivery unit composed of a fuel supply pipe for connecting the fluidized bed gasifier and the fuel bunker together, a fuel delivery screw embedded in the fuel supply pipe, a screw driving motor, an air injection pipe branched from more than one site along the longitudinal direction of the fuel supply pipe, a second compressed air tank connected to the fuel supply pipe by the air injection pipe, and an air injection valve installed at the air injection pipe, and thereby enabling smooth fuel supply by forcibly injecting a fluff-type solid fuel into the fuel supply pipe, maximally inhibiting the phenomenon of screw jamming even with the use of vinyl or big particle solid fuel by injecting compressed air into the fuel supply pipe, and being capable of resolving the phenomenon, arising during an early driving stage, that the fluid sand gets stuck in an insertion unit of the fuel supply pipe. La présente invention concerne un dispositif gazéifieur à lit fluidisé et un procédé d'alimentation en carburant d'un dispositif gazéifieur à lit fluidisé mettant en œuvre le dispositif gazéifieur à lit fluidisé. Le dispositif gazéifieur à lit fluidisé comprend : un gazéifieur à lit fluidisé ayant une entrée d'air formée sur la partie inférieure de ce dernier et du sable fluide incorporé à l'intérieur de ce dernier ; une unité de stockage et d'injection de carburant composée d'une soute à carburant comportant un carburant solide, qui est injecté vers le gazéifieur à lit fluidisé, stocké à l'intérieur de cette dernière, un premier réservoir d'air comprimé relié à la soute à combustible, une soupape de régulation de pression installée entre la soute à combustible et le premier réservoir d'air comprimé, une jauge de pression installée sur la soute à combustible, et un capt