氧化锌法烟气脱硫技术的工业化应用

介绍了氧化锌法脱硫原理及工艺流程、设备配置情况.河南豫光锌业挥发窑尾气氧化锌法脱硫系统采川两级湍冲洗涤器洗涤工艺,以确保外排烟气p(SO2)≤250mg/m(3),设计采用控制管道流速、设置管道回路和支管等措施以解决管道堵塞问题,同时探讨了脱硫副产物硫酸锌溶液几种资源化利用技术方案.负荷调试测试表明,在烟气量8.0×1...

Industrial application of zinc oxide method desulphurization technology

The principle,process and equipment configuration of zinc oxide method desulphunzatlon technology are described. The zinc oxide method desulphurization system for volatile kiln off-gas in Henan Yuguang Zinc Industry uses two-stage turbulent impulse scrubber technology to ensure SO2 emissions ≤250 mg/m^3. In plant design, some measures were taken, including controlling flow rate in pipe, setting pipeline loop and branch to prevent pipeline blockage. Some technical solutions for utilizing desulphurization by-product zinc sulphate solution are discussed. The load adjustment tests showed that, with off-gas volume of 8.0 x 104 m^3/h, temperature of 300℃, SO2eoneentration of 12.0 g/m^3, desulphurization efficiency was about 98.6% , and SO2 concentration in treated off-gas was 171 mg/m^3. The plant still has a large regulating margin.