CAJ | 학술논문

介绍了赤峰云铜有色金属有限公司350kt/a铜冶炼烟气制酸装置工艺流程和技术改造情况。改造中保留净化工序设备,改造转化器和换热器,增没二吸塔系统,取消尾气处理工序,改造后制酸装置采用＂3＋1＂ⅢⅠ-ⅣⅡ二转二吸工艺流程。该装置改造后已稳定运行3年多时间,各项技术指标均达到或超过设计值,硫利用率99.2%、净化收率99.5%、转化率99.71%、电耗120kWh/t、尾气ρ（SO2）〈800mg/m^3。
개소료적봉운동유색금속유한공사350kt/a동야련연기제산장치공예류정화기술개조정황。개조중보류정화공서설비,개조전화기화환열기,증몰이흡탑계통,취소미기처리공서,개조후제산장치채용＂3＋1＂ⅢⅠ-ⅣⅡ이전이흡공예류정。해장치개조후이은정운행3년다시간,각항기술지표균체도혹초과설계치,류이용솔99.2%、정화수솔99.5%、전화솔99.71%、전모120kWh/t、미기ρ（SO2）〈800mg/m^3。
Process and revamping of Chifeng Yuntong Nonferrous Metal Co.＇s 350 kt/a sulphuric acid plant based on copper smelter off-gas are described.By retaining clearing equipment,revamping converters and heat exchangers,adding second absorption tower system and canceling tail gas treatment system,the plant was translated to a＂3 ＋ 1＂ⅢⅠ-ⅣⅡdouble absorption process.The plant has operated stably for more than three years and every index reaches or exceeds design value,with sulphur utilization of 99.2%,clearing recovery of 99.5%,conversion of 99.71%,power consumption of 120 kWh/t and tail-gas SO2 lower than 800 mg/m^3.