CAJ | 학술논문

介绍了赤峰云铜有色金属有限公司350 kt/a铜冶炼烟气制酸装置工艺流程和转化工序技术改造情况改造后制酸装置采用部分烟气预转化吸收与现有二转二吸装置串联运行的方式,主转化吸收系统采用原有ⅢⅠ-ⅣⅡ＂3＋1＂二转二吸工艺,预转化吸收系统采用4段床层转化器一转一吸工艺。改造后装置各项运行指标均达到设计值,冶炼系统熔矿量由改造前的52 t/h提高到60.5 t/h,硫酸产量由1100t/d提高到1204t/d,蒸汽广量由21 t/h提高到31t/h,制酸电耗由103.24 kWh/t降低到97.18 kWh/t,SO_2主风机出口烟气最高φ（SO_2）由9.53%提高到12.44%,总转化率由99.7%提高到99.8%。
개소료적봉운동유색금속유한공사350 kt/a동야련연기제산장치공예류정화전화공서기술개조정황개조후제산장치채용부분연기예전화흡수여현유이전이흡장치천련운행적방식,주전화흡수계통채용원유ⅢⅠ-ⅣⅡ＂3＋1＂이전이흡공예,예전화흡수계통채용4단상층전화기일전일흡공예。개조후장치각항운행지표균체도설계치,야련계통용광량유개조전적52 t/h제고도60.5 t/h,류산산량유1100t/d제고도1204t/d,증기엄량유21 t/h제고도31t/h,제산전모유103.24 kWh/t강저도97.18 kWh/t,SO_2주풍궤출구연기최고φ（SO_2）유9.53%제고도12.44%,총전화솔유99.7%제고도99.8%。
Process and revamping of conversion section in Chifeng Yuntong Nonferrous Metal Co.＇s 350 kt/a sulphuric acid plant based on copper smelter off-gas are described.After revamping,the plant included two parts in series,a new pre-conversion and absorption system using single absorption process with a four-bed converter and an existing main conversion and absorption system usingⅢⅠ-ⅣⅡ＂3 ＋1 ＂double absorption process.The every operation index of plant reached or was superior to design value.Ore amount added into smelter was increased from 52 t/h to 60.5 t/h,sulphuric acid production from 1 100 t/d to 1 204 t/d,steam production from 21 t/h to 31 t/h and power consumption was decreased from 103.24 kWh/t to 97.18 kWh/t.The highest SO_2 concentration of gas from main SO_2 blower was increased from 9.53%to 12.44%and total conversion efficiency was increased from 99.7%to 99.8%.