公开(公告)号：US5770161A

公开(公告)日：1998-06-23

申请号：US564409

申请日：1995-11-29

申请人： Eiji Ochi ,  Toru Takashina ,  Takao Sodeshita

发明人： Eiji Ochi ,  Toru Takashina ,  Takao Sodeshita

IPC分类号： B01D53/34 ,  B01D53/50 ,  B01D53/77 ,  B01D47/00 ,  G05D7/00

CPC分类号： B01D53/501 ,  B01D53/346 ,  B01D53/504

摘要： A flue gas treating system including a gas-gas heater and/or a dust collector, and a wet flue gas desulfurization apparatus, characterized in that the flue gas treating system is equipped with addition means for adding an alkaline agent to an absorbent slurry, a pH detector for detecting the pH of the slurry, gas-gas heater operational state detection means, dust collector operational state detection means, and alkaline agent addition control means for controlling the amount of alkaline agent added in response to signals from the pH detector, the gas-gas heater operational state detection means and the dust collector operational state detection means, so that the pH and calcium compound concentration of the absorbent slurry can be controlled.

摘要翻译： 一种烟气处理系统，包括气体 - 气体加热器和/或集尘器，以及湿式烟道气脱硫装置，其特征在于，所述烟道气处理系统配备有用于向吸收剂浆料中添加碱性试剂的添加装置， 用于检测浆料的pH的pH检测器，气体 - 气体加热器操作状态检测装置，集尘器操作状态检测装置和用于响应于来自pH检测器的信号而控制添加的碱性试剂的量的碱性试剂添加控制装置， 气体加热器操作状态检测装置和集尘器操作状态检测装置，从而可以控制吸收剂浆料的pH和钙化合物浓度。