| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vertical grinder which grinds both coal and biomass, efficiently grinds the biomass and is economically operated. <P>SOLUTION: The vertical grinder includes a contraction flow area 16 which is formed between a housing 1 and a cone-shaped hopper 11. In addition, a flow rate-adjusting member 4 is provided in the contraction flow area 16 formed between the housing 1 and the cone-shaped hopper 11, the member 4 adjusting the increased flow rate of a solid-gas two-phase flow 3 which consists of a mixture of ground powder and carrier gas 10. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
