Boiler
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United States of America Patent
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Aug 4, 2020
Grant Date -
Jul 12, 2018
app pub date -
Jul 27, 2016
filing date -
Sep 14, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
This boiler has a flue in which a reducing agent supplying device and a selective reduction catalyst are provided, a bypass flow path bypassing economizers is provided, and a first closing device partially closing the bypass flow path and a second closing device partially closing the flue are also provided. A plurality of first closing members, serving as the first closing device, are provided along the direction in which exhaust gas flows through the flue at a predetermined spacing in the width direction of the flue. A plurality of second closing members, serving as the second closing device are provided along the vertical direction at a predetermined spacing in the width direction of the flue. The first closing members and the second closing members are arranged so as to be displaced from each other in the width direction of the flue.
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