OPERATION METHOD OF WASTE GASIFICATION MELTING FURNACE

Japanese Patent JP2017138031

A

PROBLEM TO BE SOLVED: To provide an operation method capable of stably keeping a water seal state of a pressure keeping chamber 6 in a method of operating a waste gasification melting furnace 10 with sufficiently high heat efficiency in a state of constantly opening a through hole 4a.SOLUTION: An operation method of a waste gasification melting furnace 10 includes; allowing a gas in a pressure keeping chamber 6 to flow into a melting furnace portion 4 through a through hole 4a by keeping a pressure pin the pressure keeping chamber 6 higher than a pressure pin the melting furnace portion 4, discharging a molten material M in the melting furnace portion 4 to a pressure keeping chamber 6 side from the through hole 4a, applying heat to the molten material M discharged from the through hole 4a by a burner 7, monitoring the pressure pin the melting furnace portion 4, and temporarily reducing or stopping supply of thermal decomposition residue of the waste to the melting furnace portion 4 by a movable carbonization fire grade when a value of the pressure pin the melting furnace portion 4 has rising tendency or reaches a threshold value.SELECTED DRAWING: Figure 1

NAGATA TOSHIMI
IZUMIYA TORU
TAKADA JUNICHI
NAMA MIZUKI
YOSHIMOTO NAOKO

JP2016017981A

August 10, 2017

February 02, 2016

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NIPPON STEEL & SUMIKIN ENG CO

F23G5/027; F23G5/24; F23G5/50

Yoshiki Hasegawa
Yoshiki Kuroki
Yasunori Ishizaka
Yohei Suzuki

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