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本科毕业设计（论文）250吨/天印染污泥干化及焚烧处理工艺设计学院环境科学与工程专业环境工程设计总说明随着印染行业蓬勃发展，我国对印染废水处理力度在不断加大，每天处理污水产生相应大量污泥,污泥量日益增加，产生的污泥的组成成分日益复杂，如处理不当，必然会对自然环境造成二次污染，存在比较严重的环境安全隐患。本设计要求处理250吨/天的印染污泥，原污泥为经过板框压滤机压滤过的含水率约82%的湿污泥。针对印染污泥的特点，结合国外处理污泥的成功经验以及国内对印染污泥的成熟工艺，决定选用先干化后焚烧的工艺。该工艺具有工艺成熟、稳定、节能、占地少、效率高等优点。基本工艺流程为：储泥室→回转烘干机→制砖机→焚烧炉→炉渣、煤灰等回收。本设计所用的主要设备有Ф3.0×28m型回转烘干机、AB-200型焚烧炉、QTY8-15型砌块成型机、ppw64-7脉冲布袋收尘器、Ф1.5×16m脱硫塔、LXT-5型活性炭吸附塔。工程总投资为1305万元，每年的总运行费用为1264.34万元。关键词：印染污泥干化焚烧回收利用DesignilluminateWithprintinganddyeingindustryvigorousdevelopment,theprintinganddyeingwastewatertreatmentingrowing,everydaytoproducelargeamountsofsewagesludge,thesludgequantityincreasing,thecomponentsofsludgeproducedbytheincreasinglycomplex,suchasimproperhandling,isboundtocausesecondarypollutiontothenaturalenvironment,thereareseriousenvironmentalsafetyhiddentrouble.Inthisdesign,projectsrequiredtotreat250tons/dayprintinganddyeingsludge.Moisturecontentoftheoriginalsludge，whichhasbeenpressedbytheframefilter，isapproximately82%.Aimingatthecharacteristicofdyeingsludge,andinthelightofthesuccessfulexperienceofexternaltreatmentofdyeingsludgeandmaturetechnologyofinternaltreatmentofthat,weselectdryingandincinerationtechnology.Suchatechnologyhastheadvantageofmature,stable,energy-saving,smallfootprintandhighefficiency.Basicprocessis:Storedmudroom→Rotarydryerbrickmachine→Incineratorslag→Ashandotherrecycled.ThemainequipmentusedinthedesignisФ3.0×28mRotaryDryer,AB-200typeincinerator,QTY8-15blockmakingmachine,ppw64-7Pulsebagfilter,Ф1.5×16mdesulfurizationtower,LXT-5-typeactivatedcarbonadsorptiontower.Thetotalinvestmentis13.05millionyuan,thetotalannualoperatingcostis12,643,400yuanKeywords：dyeingsludgemummificationincinerationrecycle目录1概述..................................................................11.1设计名称..........................................................11.2设计要求..........................................................11.3处理处置的一般要求................................................12设计背景..............................................................32.1国内外污泥处理处置现状............................................32.2项目意义..........................................................42.3印染污泥的特点....................................................42.4印染污泥适用处理方法..............................................42.4.1印染污泥稳定化方法.............................................52.4.2印染污泥的无害化方法...........................................52.4.3印染污泥的最终处置.............................................63设计范围、依据及原则..................................................83.1设计范围..........................................................83.2设计依据..........................................................83.2.1国家法律、法规及政策...........................................83.2.2地方法规及政策.................................................93.2.3技术规范和行业标准.............................................93.33设计原则........................................................104工艺流程及说明.......................................................115设计内容.............................................................135.1厂址.............................................................135.1.1总图布置......................................................135.1.2厂区道路和运输................................................135.1.3结构设计......................................................135.1.4厂区道路、大门、围墙..........................................145.2干化工艺.........................................................145.2.1干化过程......................................................145.2.2加热方式......................................................145.2.3污泥干化的热源................................................155.2.4污泥干化的系统组成：..........................................165.2.5干化设备......................................................165.2.6选型计算......................................................215.3焚烧工艺.........................................................235.3.1焚烧设备......................................................245.3.2工艺设计......................................................255.4烟气处理工艺.....................................................275.4.1除尘系统......................................................285.4.2双碱法脱硫....................................................305.4.3活性炭吸附法脱氮..............................................325.5灰渣处理系统.....................................................336成本概算.............................................................346.1劳动定员.........................................................346.2土建及设备投资概算...............................................356.3其他费用部分.....................................................376.4管理费用.........................................................376.5预备费用.........................................................376.6工程总投资.......................................................386.7运行费用概算.....................................................387劳动保护、安全生产及消防.............................................407.1劳动保护与安全生产...............................................407.2消防..........................................................