DEVICE AND METHOD FOR HEAT DECHLORINATING COLLECTED DUST AND ASH

Title:

DEVICE AND METHOD FOR HEAT DECHLORINATING COLLECTED DUST AND ASH

Document Type and Number:

WIPO Patent Application WO/1995/033585

Kind Code:

A1

Abstract:

A device for heat dechlorinating collected dust and ash comprising a longitudinally elongated cylindrical device main body, an inlet port and an outlet port for collected dust and ash provided in such a manner as to be spaced from each other vertically of the device main body, an introducing port of heated air formed in the device main body between the inlet and outlet ports, an outlet port of exhaust gas provided in the upper portion of the dust and ash inlet-port, a rotational shaft provided along the axial direction of the device main body, a screw provided on the rotational shaft, and heating means provided at an intermediate position between the inlet port and outlet port of collected dust and ash. A method for heat dechlorinating collected dust and ash comprising the steps of introducing heated air from the heated air introducing port, forming a stirring fluidized bed above the heated air introducing port and a moving bed below the heated air introducing port, causing unburned matter in collected dust and ash to be burned in the stirring fluidized bed, and completely or partially decomposing and removing chlorinated compounds in the moving bed by virtue of heat generated when the unburned matter is burned.

Inventors:

TAKASUKA GENTARO (JP)
ITAYA MAZUMI (JP)

Application Number:

PCT/JP1995/001099

Publication Date:

December 14, 1995

Filing Date:

June 05, 1995

Export Citation:

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Assignee:

MITSUI SHIPBUILDING ENG (JP)
TAKASUKA GENTARO (JP)
ITAYA MAZUMI (JP)

International Classes:

F23G7/00; B01D53/68; B09B3/00; F23G5/10; F23G5/30; (IPC1-7): B09B3/00

Foreign References:

JPH05154461A	1993-06-22
JPH0278479A	1990-03-19

Other References: