Sintering waste gas dust collector for stainless steel and sintered exhaust gas dust collector

摘要

PROBLEM TO BE SOLVED: To provide a dust collector which is hardly corroded by sintering exhaust gas.SOLUTION: A dust collector 1 for sintering exhaust gas collects sintering dust in the sintering exhaust gas containing sulfur oxides and calcium content. The dust collector 1 includes: a casing 11 provided with an exhaust gas introduction part 11a and an exhaust gas discharge part 11b; dust collection electrodes 12 and discharge electrodes, which are arranged in the casing 11 to collect the sintering dust in the sintering exhaust gas; and a dust hopper 14 connected to a lower part of the casing 11. The dust hopper 14 is constituted of a stainless steel having a value of ≥22.0, wherein the value is calculated by the depassivation pH indicator (DPI).