| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for preventing a temperature of a carbonized sludge in the inside of a carbonization tube from being lowered by discharging a high-temperature carbonized product to be discharged from a carbonization furnace while shielding air by a rotary valve, and thereafter spraying water thereon. SOLUTION: The high-temperature carbonized product discharged from the carbonization furnace kept at negative pressure by sucking a combustion gas by a ventilating fan 15 while blocking the inflow of open air by a rotary valve 4a installed in the inlet of a material to be carbonized, and a rotary valve 4b (e.g. the water-cooled one) having a cooling structure, and installed in the outlet of the carbonized product, is discharged from the rotary valve 4b having the cooling structure, and thereafter the moisturizing water is sprayed thereon. Preferably, a rotary valve 4c is installed at the downstream of the rotary valve 4b, and the air is flowed in from the position between them to surely prevent the inflow of water vapor to the carbonization tube. COPYRIGHT: (C)2006,JPO&NCIPI
|
