Title:
脱硝触媒研磨方法及び脱硝触媒研磨装置
Document Type and Number:
Japanese Patent JP7464523
Kind Code:
B2
Abstract:
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.
Inventors:
Toshikazu Yoshikawa
Kazuhiro Yoshida
Keiichiro Morita
Toru Yoshioka
Nobuaki Ida
Daisuke Sakamoto
Hirohiro Hidaka
Kazuhiro Yoshida
Keiichiro Morita
Toru Yoshioka
Nobuaki Ida
Daisuke Sakamoto
Hirohiro Hidaka
Application Number:
JP2020535145A
Publication Date:
April 09, 2024
Filing Date:
February 28, 2020
Export Citation:
Assignee:
Chugoku Electric Power Co., Inc.
Hashida Giken Kogyo Co., Ltd.
Hashida Giken Kogyo Co., Ltd.
International Classes:
B01J38/00; B01D53/96; B01J35/57
Domestic Patent References:
| JP2012000693A | ||||
| JP62057864A | ||||
| JP4197451A | ||||
| JP58150439A |
Foreign References:
| US20180141034 |
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Kazuyoshi Hayashi