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[" ¿Para lograr氮氧化物浓度在3 mg以内,35吨双床硫化床锅炉,炉内脱硝SNCR如何实现?求解。",

2019-10-03View Original

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" ¿Para log氧化物浓度在35 mg/Nm3以内,35吨双床循环硫化床锅炉,炉内脱硝SNCR如何实现?炉国标二氧化硫33 mg/Nm3,氮氧化物33 mg/Nm3,粉尘35 mg/Nm3,1月中旬执行地标如何实现地标?如何实现不使用SCR还能达标?炉炉内温度正常85-到155之间,现炉主床已加了8根每小时8s kg流量的喷枪,还有副床没加喷枪,求大神指教。",
Reply #22019-10-04
" ¿¿关于东锅的双床炉型(CFDB)?这种炉型的床温会比比CFB稍微高一些,相对适合使用低挥发分的原煤;我理解的尾气中的NOx也要高一些(没监测过。SNCR效率33%83%,得看你投喷枪前的NOx排放浓度;如果太高了这种工艺就很难搞定了。建议楼主对比你主床投喷枪前后的NOx浓度;如果脱硝效率太低,估计这工艺就没啥油水了。我这里使用CFB锅炉,现执行的是电锅炉的排放标准,粉尘颗粒物浓度是33 mg/Nm3,SOx和NOx都是33 mg/Nm3,只有除尘和脱硫工艺,还没上脱硝工艺,实际排放都能减半搞定。也得到消息,NOx排放标准会下调,现在做技术储备,炉炉外脱硝要增加大约111pa左右的阻力,这样风机都得得改造。这楼是馊主意,你稀释烟气,且不说炉风机能否适应,远传炉监测仪立马会把烟囱上的流量传到环保局,追责电话跟着就来了!"

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