ダスト回収方法 - KABUSHIKI KAISHA KOBE SEIKO SHO

Title:

ダスト回収方法

Document Type and Number:

Japanese Patent JP6422809

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a dust recovery method capable of effectively suppressing generation of failure on facility during dust recovery and effectively collecting dust having high iron percentage content.SOLUTION: The dust recovery method is a method for recovering dust generated in a converter having a process of sprinkling to exhaust gas containing the dust by a wet type dust collector, a process of separating coarse grain from dust collection drain water after the sprinkling process by a classifier and a process of separating fine particle from water containing the fine particle after the coarse particle separation process by a thickener, where pH of the dust collection drain water treated in the coarse particle separation process is adjusted in a range of 10 to 12, pH of water containing the fine particle treated in the fine particle separation process is adjusted in a range of 7 to 9 and difference of pH of the dust collection drain water and pH of water containing the fine particle is adjusted to 3 or more.SELECTED DRAWING: Figure 1

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Inventors:

Atsuhiko Yoshida

Application Number:

JP2015074014A

Publication Date:

November 14, 2018

Filing Date:

March 31, 2015

Export Citation:

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