Title:
排ガス処理装置および排ガス処理方法
Document Type and Number:
Japanese Patent JP7214594
Kind Code:
B2
Abstract:
Provided is an exhaust gas treatment device (4), wherein an adsorbent supply part (41) supplies, in an exhaust gas path through which an exhaust gas generated in a combustion chamber (21) flows, a mercury adsorbent to the exhaust gas, and a bag filter (42) collects the mercury adsorbent. A heat exchange part (49) is disposed, in the exhaust gas path, between the combustion chamber (21) and the bag filter (42), and performs heat exchange between the exhaust gas and a predetermined fluid. An upstream mercury densitometer (45) measures, between the combustion chamber (21) and the bag filter (42) in the exhaust gas path, the mercury concentration of the exhaust gas as an upstream mercury concentration. A fly ash removal part (48) is capable of removing fly ash deposited on the heat exchange part (49) by performing a cleaning operation such as a pressure wave cleaning, and performs the cleaning operation on the basis of the upstream mercury concentration. The exhaust gas treatment device (4) can properly reduce the mercury concentration of the exhaust gas.
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Inventors:
Michitaka Furubayashi
Akihiro Usutani
Akihiro Usutani
Application Number:
JP2019151746A
Publication Date:
January 30, 2023
Filing Date:
August 22, 2019
Export Citation:
Assignee:
Hitachi Zosen Corporation
International Classes:
B01D53/64; B01D46/04; B01D53/83; F27D17/00; F27D19/00; F27D21/00
Domestic Patent References:
| JP2019027672A | ||||
| JP2010127597A | ||||
| JP2016007572A |
Other References:
一般廃棄物処理施設における大気への水銀排出対策技術 平成26年7月9日(水) (一社)日本環境衛生施,中央環境審議会 大気・騒音振動部会 水銀大気排出対策小委員会(第3回) 資料2-7,https://www.env.go.jp/council/07air-noise/y079-03/mat02_7.pdf
Attorney, Agent or Firm:
Masahiro Matsuzaka
Tsutomu Tanaka
Yamamura Issei
Tsutomu Tanaka
Yamamura Issei
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