| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a distribution of raw materials in a shaft type furnace using a simple structure. <P>SOLUTION: A shaft type furnace 10 including a furnace body 11 and a raw material supply apparatus 100 provided at the top of the furnace body 11. The raw material supply apparatus 100 includes: an outer cylinder 110 and an inner cylinder 120 provided around the same center axis C; first raw material supply means 121 supplying a first raw material to the inside of the inner cylinder 120; second raw material supply means 161 supplying a second raw material to between the outer cylinder 110 and inner cylinder 120; a spiral chute 130 which is provided between the outer cylinder 110 and inner cylinder 120 and causes the second raw material to slide on the spiral chute; and a rotary mechanism 140 which rotates the spiral chute 130 around the center axis C. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
