| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing a finely powdered fuel which exhibits a high combustion efficiency and is easily handled, mainly from org. dewatered sludge. SOLUTION: Dewatered sludge or dry sludge formed by drying dewatered sludge, plastic waste, and an additive are charged at a certain ratio into a twin-screw extruder and kneaded under heating to be converted into a solid contg. 10 wt.% or lower water. The solid is charged into a ball mill and pulverized, thus giving a finely powdered fuel having a particle size of 10-500μm.
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