| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a raw material coal drying and classifying device selecting a steel product consisting of a component attaining both stress corrosion cracking resistance and rust resistance via a rusting property indicating parameter as a material of a dispersion plate. <P>SOLUTION: In the raw material coal drying and classifying device for forming a fluidized bed within a fluidized drying zone, a classifying zone with gas ejected from a gas chamber 13 via the dispersion plate 11 to dry and classify the raw material coal in the fluidized bed, the dispersion plate 11 and/or a lining plate formed on side walls of the fluidized drying zone, the classifying zone are/is constituted of a steel sheet containing Ni of 1-6%, Mn of 1-6%, Cu of 0.05-0.8% in mass%, and consisting of Fe and inevitable impurities as its balance. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
