PROCESSING APPARATUS FOR WASTE GAS, AND ITS METHOD

PROBLEM TO BE SOLVED: To provide equipment wherein a waste gas flow passage in a heat exchanger is unlikely to close and produced dust is cleaned with ease. SOLUTION: Waste gas from a melting furnace 5 for melting a waste is flowed through a plurality of stages of indirect heat exchangers 7 to 10 co...

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Hauptverfasser:	YOKOMAKU HIROYUKI, BANDO MASAICHI, KOJIMA KIYOSHI, ENDO HISASHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES CONSUMING WASTE PRODUCTS BY COMBUSTION CREMATION FURNACES FLUES HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide equipment wherein a waste gas flow passage in a heat exchanger is unlikely to close and produced dust is cleaned with ease. SOLUTION: Waste gas from a melting furnace 5 for melting a waste is flowed through a plurality of stages of indirect heat exchangers 7 to 10 connected in series via waste gas communication passages 70, 71, and 72, and waste heat of waste gas is recovered by dividing the operation into a plurality of steps. Thereupon, the waste gas communication passage 70 connecting at least the uppermost stream heat exchanger 7 and the next stage heat exchanger 8 is formed to include dust capture spaces 70S, 70S where a waste gas flow speed flowing the inside is lower than that in the uppermost stream heat exchanger 7.