新日铁户烟3号烧结机主然气电集尘装置因设备老化，集尘效率下降而需要更新，在更新时，考虑到环保法规对环境要求将会越来越严，因此采用了能大幅度减少排气量的主排气循环技术。（1）主排气循环设备概况原来主排气系统分成低温、低8风和高温、高SOx两个分系统，在高温、高SOx Nipponbare Tobacco 3 sintering machine Mainly gas-electric dust collector due to aging equipment, dust collection efficiency and the need to update the update, taking into account the environmental laws and regulations on the environment will be more stringent requirements, so the use of energy The main exhaust cycle to significantly reduce the amount of exhaust technology. (1) The main exhaust gas circulation equipment Overview The original main exhaust system is divided into low temperature, low 8 wind and high temperature, high SOx two subsystems, at high temperature, high SOx