| 摘要 |
PROBLEM TO BE SOLVED: To decompose the combustible parts of marine organisms through combustion and to reduce the used amount of auxiliary fuel and water by making a facility compact, and then, to eliminate the need of water treatment, by supplying the marine organisms including shellfish to a parallel flow type rotary kiln and agitating the organisms while the organisms are heated in a specific temperature range. SOLUTION: Marine organisms including shellfish supplied from a marine organism tank 1 are carried to a trommel 3 by means of a screw conveyor 2 and dehydrated. The organisms coming out from the trommel 3 are carried to a feeder 6. The organisms are carried to another screw conveyor 7 from the feeder 6 and supplied to a rotary kiln 8 through the base-end section of the kiln 8 and incinerated. It is desirable to adjust the incineration temperature to 550-750 deg.C, preferably, to 600-700 deg.C, because it is necessary to prevent the decomposition of calcium carbonate (CaCO3) into quick lime (CaO). In the rotary kiln 8, a combustion zone is formed successively from a drying zone formed on the base-end side.
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