乡镇生活垃圾热解尾气中CO排放浓度关键影响因素的研究
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摘要
为了解乡镇生活垃圾热解处理尾气中CO排放浓度的关键影响因素,通过单因素实验分析了二燃室温度、垃圾含水率、炉排转动频率、过量空气系数对CO排放浓度的影响,并采用正交实验进行优化。结果表明:在二燃室温度880℃,垃圾含水率42%,炉排转动频率1.6 r/h,过量空气系数2.75的条件下,尾气中CO的浓度值低于27 mg/m~3,达到《生活垃圾焚烧污染物控制标准》(GB18485-2014)要求。
In order to obtain the key factors influencing CO emission concentration in pyrolysis exhaust of rural domestic waste, the effects of second combustion chamber temperature, moisture content of waste, rotation frequency of the grate and excess air coefficient on CO emission concentrations were analyzed by a single factor experiment. An orthogonal experiment was carried out to optimize the operation conditions. The results showed that under a certain conditions(second combustion chamber temperature = 880° C, moisture content of waste = 42 %, rotation frequency of the grate = 1.6 r/h, excess air coefficient =2.75), the CO concentration in the pyrolysis exhaust was below 27 mg/m~3, which satisfied the requirements of Standard for pollution control on the municipal solid waste incineration(GB18485-2014).
In order to obtain the key factors influencing CO emission concentration in pyrolysis exhaust of rural domestic waste, the effects of second combustion chamber temperature, moisture content of waste, rotation frequency of the grate and excess air coefficient on CO emission concentrations were analyzed by a single factor experiment. An orthogonal experiment was carried out to optimize the operation conditions. The results showed that under a certain conditions(second combustion chamber temperature = 880° C, moisture content of waste = 42 %, rotation frequency of the grate = 1.6 r/h, excess air coefficient =2.75), the CO concentration in the pyrolysis exhaust was below 27 mg/m~3, which satisfied the requirements of Standard for pollution control on the municipal solid waste incineration(GB18485-2014).
引文
[1]冯军.广西农村生活垃圾处理研究进展[J].福建质量管理,2016(02):72-73.
[2]欧文剑,沈贤锋,杨鹤松,等.乡镇生活垃圾焚烧炉的实验研究与优化设计[J].化工装备技术,2013,34(02):48-51+66.
[3]江爱朋.城市生活垃圾典型组分的燃烧特性和排放特性研究[D].浙江大学,2002.
[4]王文刚,付晓慧,王学珍.生活垃圾焚烧烟气污染物控制工艺选择[J].中国人口·资源与环境,2014,24(S1):87-91.
[5]任超峰,方朝军,王武忠.生活垃圾循环流化床锅炉CO减排浅析[J].工业锅炉,2018(04):37-40.
[6]张祎,刘有智,袁志国.密闭空间CO净化技术探讨[J].天然气化工(C1化学与化工),2014,39(02):85-89.
[7]蔡明招,梁炽琼,陈烈强,等.城市有机垃圾焚烧烟气中氮氧化物生成特性的研究[J].四川环境,2000(04):23-25.
[8]张永照.城市垃圾焚烧技术和二噁英排放控制[J].工业锅炉,2004(05):1-7.
[9]杨文卿,孔飞,林继辉,等.污泥/猪粪添加PAAS混合好氧堆肥的正交优化试验研究[J].环境科技,2016,29(02):32-37.
[2]欧文剑,沈贤锋,杨鹤松,等.乡镇生活垃圾焚烧炉的实验研究与优化设计[J].化工装备技术,2013,34(02):48-51+66.
[3]江爱朋.城市生活垃圾典型组分的燃烧特性和排放特性研究[D].浙江大学,2002.
[4]王文刚,付晓慧,王学珍.生活垃圾焚烧烟气污染物控制工艺选择[J].中国人口·资源与环境,2014,24(S1):87-91.
[5]任超峰,方朝军,王武忠.生活垃圾循环流化床锅炉CO减排浅析[J].工业锅炉,2018(04):37-40.
[6]张祎,刘有智,袁志国.密闭空间CO净化技术探讨[J].天然气化工(C1化学与化工),2014,39(02):85-89.
[7]蔡明招,梁炽琼,陈烈强,等.城市有机垃圾焚烧烟气中氮氧化物生成特性的研究[J].四川环境,2000(04):23-25.
[8]张永照.城市垃圾焚烧技术和二噁英排放控制[J].工业锅炉,2004(05):1-7.
[9]杨文卿,孔飞,林继辉,等.污泥/猪粪添加PAAS混合好氧堆肥的正交优化试验研究[J].环境科技,2016,29(02):32-37.