加压鼓泡流化床污泥掺烧兰炭研究

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关键词：污泥楚烧；加压鼓泡流化床；兰炭；污染物排放

中图分类号：X703 文献标识码：A 文章编号：1008-9500(2025)06-0007-05

DOI: 10.3969/j.issn.1008-9500.2025.06.002

Study on the Co-Firing of Pressurized Bubbling Fluidized Bed Sludge with Semi-Coke

ZHANGZhi

(Guangdong Branch of Ningbo Contemporary Brunp Lygend Co.,Ltd.,Foshan 5281Oo, China)

Abstract: Inorder tounderstand theemission characteristicsand incinerationresiduecompositionof pressurized bubbling fluidizedbed incineration fluegas,asmall-scale experimentof sludge incineration is conductedbyusing sludge froma sewage treatmentplantinXi'ancity.Semi-cokeismixed intosludge toprepare three typesofmixed sludge (numbered MS1,MS2,MS3),theirmissioncharacteristicsofincinerationfluegasarecompared,andX-RayFuorescence(Fis used todeterminethematerial compositionof theresidue inthe incinerator.Theexperimentalresultsshowthatwhen the calorific value of the mixed sludge is 3500～4500kJ/kg ,it burns fully in the experimental device,and the operating temperatureofeach partof theincineratorcanbe maintainedabovethesettemperature.Thedetectionresultsoftheonline flue gas analyzer show that when the mixed sludge is stably burned, the O2 content can be reduced to a minimum of 5% ,the CO content can reach a maximum of 52mg/m3 ,the nitrogen oxide (NOx) content remains stable at 30～100mg/m3 ,and the （20 SO2 content can reach a maximum of about 60mg/m3 .The XRF measurement results indicate that the main components of the residue in the incinerator are alkaline earth aluminosilicates (MgSixAlyOz, CaSixAl,O, etc.),alkali metal aluminosilicates （204 (NaSi,AlyOz, （204 KSixAlyOz. ,etc.),and iron metal aluminosilicates (FeSixAlOz).

Keywords: sludge incineration; pressurized bubbling fluidized bed; semi-coke; pollutant emission

污泥是一种含有氮磷元素、有机物、重金属和病菌的固体废弃物，长期堆存会对环境造成严重危害。（剩余7963字）