| 摘要 |
PURPOSE:To provide a stable supplying without any thermal loss in an air feeding of hot combustible powders by a method wherein a pressurized hopper which is pressurize to have a pressure higher than that of a feeding pipe with inert gas such as combustion discharged gas is installed between the hopper and the air feeding pipe. CONSTITUTION:A discharged gas is supplied to a pressurized hopper 12 from a discharged gas line 14 by a blower 13, and then it is pressurized to have a pressure higher than a pressure of an air feeding pipe 10. Powder in a powder storing hopper 3 is supplied to the air feeding pipe 10 through the pressurized hopper 12. With this arrangement, it is possible to prevent any leakage of fed air, reduce a thermal loss of hot combustible powder, and ensure a stable continuous supplying of powder.
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