AIR INTRODUCTION STRUCTURE OF LOW CONCENTRATION DENITRATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To improve the pressure loss of an air guide duct from an intake to contacting with a denitration material.SOLUTION: In a low concentration denitration apparatus where a treatment gas is introduced from an intake 21 to the lower side of a denitration material 3 in a denitration chamber 1 via the downward flow path 22 and a lateral flow path 23 of an air guide duct 2; and the treatment gas passes the denitration material 3 from the whole lower surface, a curved surface-shaped air guide plate 4 to smoothly introduce the treatment gas downward at a bending part from the intake 21 to the downward flow path 22 of the air guide duct 2 is disposed, and a curved surface-shaped air guide plates 5 and 6 to smoothly introduce the treatment gas to a side are disposed at a bending part from the downward flow path 22 of the air guide duct 2 to the lateral flow path 23.