DENITRATION CATALYST ABRASION METHOD AND DENITRATION CATALYST ABRASION DEVICE

摘要

The purpose of the present invention is to provide a denitration catalyst abrasion method and a denitration catalyst abrasion device which are capable of improving denitration catalyst abrasion efficiency.　Provided is a denitration catalyst abrasion method in which an abrasive material A and air are made to flow through through holes C1 in a denitration catalyst C provided with a plurality of through holes C1 that extend in the lengthwise direction in order to abrade the inner surfaces of the through holes C1. The denitration catalyst C is positioned so that the flow path direction of the through holes C1 is substantially perpendicular to the horizontal plane. The abrasive material A flows through the through holes C1 from bottom to top. The abrasive material A contains first abrasive grains A1 and second abrasive grains A2. The speeds at which the first abrasive grains A1 and the second abrasive grains A2 flow through the through holes C1 are different, and thus the second abrasive grains A2 collide with the first abrasive grains A1 and are dispersed, thereby allowing for the efficient abrasion of the inner surfaces of the through holes C1.