| 摘要 |
PURPOSE:To make suitable distribution of gas flow and to enable increases of fine raw material quantity, by charging raw material into furnace top hopper as segregation to each grain size by using classificating effect on the way of carring the raw material. CONSTITUTION:By using using characteristic in each classification of grain size in the raw material discharging from an eccentric hopper 11, the grain size segregation into fine grain raw material 12 and coarse grain raw material 13 is developed on the same carrying conveyor 14. Next, these raw material 12, 13 are charged as dividing grain size into two furnace top fixed hoppers 6, 6'. Successively, the raw material 12, 13 in these hoppers 6, 6' are separately discharged. Together with this, opening/closing of a small bell 8 and a large bell 9 are controlled corresponding to discharge of raw material in each furnace top fixed hopper.
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