| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for charging an ore raw material and a solvent to a refining furnace, by which an increase in the variation of the grade of SiO<SB>2</SB>in slag which has been a problem in the conventional method is suppressed as far as possible, and which can achieve stabilization of slag components. SOLUTION: In the method for charging the ore raw material and the solvent to the refining furnace, a pulverized and dried solvent 10 mainly composed of silicic acid ore is conveyed to directly before a refining furnace by a first conveyance system, on the other hand, a pulverized and dried ore raw material 20 is conveyed to directly before the refining furnace by a second conveying system, and the solvent 10 and the ore raw material 20 are mixed directly before their charge to the refining furnace and are then charged to the refining furnace. In the method, the solvent 10 is charged within a chamber 31 into an air flow where the ore raw material 20 is conveyed by an air current by a pneumatic tube 21, then they are uniformly mixed, and thereafter, the mixture is charged to the refining furnace. COPYRIGHT: (C)2011,JPO&INPIT
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