BIOMASS PULVERIZING DEVICE AND BIOMASS • COAL CO-COMBUSTION SYSTEM

摘要

The pulverizing device (13) is provided with a feedstock supply pipe (12), which supplies biomass feedstock (11) from above in the vertical direction, a pulverizing table (14) whereon the supplied biomass feedstock is loaded, and pulverizing rollers (16) that are operated by being linked to rotation of the pulverizing table (14) and pulverize the biomass feedstock (11) by means of pressure, a blower means that creates an upward current, and a separator (19) which classifies the pulverized biomass powder (17). The pulverizing device comprises a vertical rim (14a) that surrounds the pulverizing table (14) and also is provided with a first projecting ledge (31), wherein a plurality of slits (32) is formed, which extends from the pulverizing device (13) towards the lower part of the pulverizing rollers (16) and forms a prescribed gap with the upper surface of the vertical rim (14a).