Abstract: A high-efficiency gradient hierarchy complex desulfurizing tower includes a tower body. The tower body tower includes an oxidization and crystallization stage, a coarse desulfurization and dedusting stage, a fine desulfurization and dedusting stage, and a horizontal demisting stage from the bottom up. The oxidization and crystallization stage tower includes a pond and a separation mechanism provided in the pond and separating the pond into an upper area and a lower area. The coarse desulfurization and dedusting stage tower includes a gas distributing board and a multi-layer spray layer that are placed above a gas import, the spray layer being in connection with the pond. The fine desulfurization and dedusting stage tower includes a tube demister, a flushing layer, a film liquid holdup layer, a liquid holdup layer recycling can, the pH of slurry in the liquid holdup layer recycling can being higher than the pH of slurry in the pond.
Type:
Grant
Filed:
July 20, 2016
Date of Patent:
December 4, 2018
Assignees:
HUANENG POWER INTERNATIONAL, INC., WUHAN KAIDI ELECTRIC POWER ENVIRONMENTAL CO., LTD.
Inventors:
Weidong Li, Hong Zhao, Changmin Han, Yong He, Yi Zhang
Abstract: A high-efficiency gradient hierarchy complex desulfurizing tower includes a tower body. The tower body tower includes an oxidization and crystallization stage, a coarse desulfurization and dedusting stage, a fine desulfurization and dedusting stage, and a horizontal demisting stage from the bottom up. The oxidization and crystallization stage tower includes a pond and a separation mechanism provided in the pond and separating the pond into an upper area and a lower area. The coarse desulfurization and dedusting stage tower includes a gas distributing board and a multi-layer spray layer that are placed above a gas import, the spray layer being in connection with the pond. The fine desulfurization and dedusting stage tower includes a tube demister, a flushing layer, a film liquid holdup layer, a liquid holdup layer recycling can, the pH of slurry in the liquid holdup layer recycling can being higher than the pH of slurry in the pond.
Type:
Application
Filed:
July 20, 2016
Publication date:
May 24, 2018
Applicants:
HUANENG POWER INTERNATIONAL, INC., WUHAN KAIDI ELECTRIC POWER ENVIRONMENTAL CO., LTD.
Inventors:
Weidong LI, Hong ZHAO, Changmin HAN, Yong HE, Yi ZHANG