| 摘要 |
PROBLEM TO BE SOLVED: To prevent condensation of moisture in gas used for drying coal on the inner wall part of a drying and classifying chamber and to efficiently produce coarse-grained coal charged into a coke oven. SOLUTION: A fluidized bed drying and classifying apparatus where a fluidized bed 16 is formed over a dispersion plate 15 in the drying and classifying chamber 14 by jetting gas, introduced from a main introduction pipe 18 into a gas chamber 26, through the dispersion plate 15 to dry coal and, at the same time, to classify powdered coal in coal generated by the drying, comprises a branch pipe 20 branched from the main introduction pipe 18 to introduce branched gas into a gas space 14a, into which gas used for drying coal rises up, in the drying and classifying chamber 14, and a collision plate 35 guiding the branched gas, introduced from the branch pipe 20, to the inner wall part of the drying and classifying chamber 14. COPYRIGHT: (C)2009,JPO&INPIT
|
