| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress variation in blown amount of pulverized coal. <P>SOLUTION: A pulverized coal flow control device 103 acquires information about the composition and moisture content of coal which is a raw material of the pulverized coal and about the grain size after pulverizing and drying the coal, and based on the acquired information, controls opening of a pulverized coal flow rate adjusting instrument 12 which adjusts the flow rate of the pulverized coal blown into a blast furnace. Thus, though the pulverized coal is clogged in a transporting path due to properties of the coal and pulverized coal such as composition, moisture content and grain size, etc. and the opening of the flow rate adjusting instrument of the pulverized coal does not vary, the variation in blown amount of the pulverized coal can be controlled. <P>COPYRIGHT: (C)2013,JPO&INPIT |
