| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a biomass-grinding device which efficiently, stably grinds a biomass raw material; and to provide a system for combusting a mixture of biomass and coal. <P>SOLUTION: The biomass-grinding device includes: a grinding device body 13 having a raw material-feeding pipe 12 which feeds a biomass raw material 11 from above in a vertical axis direction; a grinding table 14 on which the biomass raw material 11 is placed; a driving part 15 which rotatively drives the grinding table 14; grinding rollers 16 which operate in connection with the rotation of the grinding table 14 and grinds the biomass raw material 11 by means of pressing force; a blower means which generates a rising air current which flows, in an upward direction, from below the side of the external periphery of the grinding table 14 and spouts out a carrier gas 18 which carries the ground biomass raw material 17 by the air current; and a classifier 19 which classifies the ground biomass raw material 17 which accompanies the carrier gas. In addition, a plurality of radial table grooves are formed on the surfaces of the table liners 14b of the grinding table 14 from their internal peripheral parts toward the external edge sides thereof, and the front ends of the grooves are located up to the vicinities of the center parts of the table liners. <P>COPYRIGHT: (C)2012,JPO&INPIT |
