摘要:現如今我國很多城市具有垃圾圍城隱患,垃圾清運數量逐年增加,若垃圾處理不合理,會嚴重危害人類生存環境。為此,垃圾焚燒發電技術應運而生,不僅能夠解決垃圾留存問題,還能實現資源的再利用,但如何控製好垃圾焚燒發電成本,是我們需要重點研究的一個課題。
關鍵詞:城市;生活垃圾;焚燒發電;運行成本;控製要點
1 城市生活垃圾焚燒發電運行成本控製的重要性
城cheng市shi在zai建jian設she發fa展zhan的de過guo程cheng中zhong會hui產chan生sheng大da量liang的de生sheng活huo垃la圾ji,這zhe些xie垃la圾ji部bu分fen出chu自zi日ri常chang生sheng活huo的de各ge個ge方fang麵mian,而er如ru何he處chu理li好hao這zhe些xie廢fei棄qi物wu,既ji減jian少shao垃la圾ji的de堆dui放fang造zao成cheng的de環huan境jing汙wu染ran又you可ke以yi發fa揮hui經jing濟ji效xiao益yi,更geng好hao地di回hui饋kui大da眾zhong,是shi全quan社she會hui關guan注zhu的de焦jiao點dian。隨sui著zhe人ren們men環huan保bao理li念nian的de不bu斷duan革ge新xin,垃la圾ji焚fen燒shao發fa電dian企qi業ye的de發fa展zhan規gui模mo與yu管guan理li水shui平ping也ye得de到dao了le全quan麵mian的de提ti升sheng,並bing逐zhu漸jian形xing成cheng產chan業ye化hua。我wo國guo政zheng府fu在zai扶fu持chi環huan保bao能neng源yuan企qi業ye、頒布合理政策等方麵做出了非常大的努力。垃圾焚燒發電企業在城市建設工作的科學化實施、huanbaogongzuodechixuxingfazhandengfangmianzuochulezhuoyuedegongxian,suizheqiyedebuduanfazhanyehuodelejiaohaodeshouyi。chengbenkongzhigongzuozaiqiyerichangguanligongzuozhongfahuizhezhongyaodezuoyong,qiyeguanlicengyingzhenduixianyoudefazhanqingkuangjinxingkexuedeguihuayushenrudifenxi,zhidingchengbenkongzhifangan,bingzaiqiyejingyingguanlidezhuduohuanjiejinxingbakong,cujinqiyeziyuanchengbendeyouxiaoguankong,tishengqiyejingjixiaoyi。
2 城市生活垃圾焚燒發電運行成本控製要點
近十幾年我國逐漸加大風能、shuinengdengqingjienengyuandekaifalidu,danyouyubufenqingjienengyuankaifajishuduihuanjingyouzhejiaogaodeyaoqiu,suoyibunengbeiguangfanyingyong。tongshi,dangqianrenmenchanshengdeshenghuolajishuliangyuelaiyueduo。weimanzurenmenbuduanshangshengdedianlixuqiu,lajifenshaofadianyinqijubeichuligutifeiqiwuyijishengwuzhinengfadiandegongneng,jianjubaohuhuanjinghetigongnengyuanliangfangmiantexingshoudaolerenmendeguangfanguanzhu。xiamianjiangduichengshishenghuolajifenshaofadianyunxingchengbenkongzhidejutiduicejikongzhiyaodianjinxingfenxihelunshu。
2.1 燃料動力和水電費的成本控製
城cheng市shi生sheng活huo垃la圾ji焚fen燒shao的de過guo程cheng為wei,被bei收shou集ji後hou的de城cheng市shi垃la圾ji經jing垃la圾ji運yun輸shu車che運yun送song到dao垃la圾ji焚fen燒shao發fa電dian場chang內nei,再zai由you垃la圾ji車che運yun送song到dao垃la圾ji池chi進jin行xing幹gan燥zao處chu理li,幹gan燥zao後hou由you垃la圾ji吊diao車che從cong垃la圾ji池chi移yi入ru落luo料liao槽cao,並bing通tong過guo液ye壓ya加jia料liao器qi將jiang垃la圾ji推tui入ru焚fen燒shao爐lu,垃la圾ji經jing過guo焚fen燒shao產chan生sheng的de高gao溫wen煙yan氣qi進jin入ru餘yu熱re鍋guo爐lu,產chan生sheng的de蒸zheng汽qi進jin入ru母mu管guan後hou,推tui動dong凝ning汽qi式shi汽qi輪lun機ji工gong作zuo產chan生sheng電dian力li,這zhe些xie電dian力li除chu了le供gong發fa電dian廠chang運yun行xing外wai,其qi餘yu電dian量liang被bei傳chuan送song至zhi電dian力li公gong司si並bing分fen配pei至zhi各ge用yong戶hu終zhong端duan。城cheng市shi生sheng活huo垃la圾ji焚fen燒shao發fa電dian的de燃ran料liao動dong力li成cheng本ben主zhu要yao指zhi焚fen燒shao發fa電dian爐lu啟qi動dong、停止所消耗的諸如汽油、煤炭等燃料的成本;而水電費主要指冷卻塔循環用水、生活用水以及生產辦公用電等及外購水電的費用。為加強對燃料動力以及水電費成本的控製,工作人員可以通過加強對原煤、石灰、水shui電dian等deng的de管guan理li控kong製zhi,降jiang低di資zi源yuan的de消xiao耗hao量liang,如ru某mou垃la圾ji焚fen燒shao發fa電dian廠chang的de工gong作zuo人ren員yuan根gen據ju發fa電dian廠chang的de實shi際ji情qing況kuang,統tong計ji每mei日ri各ge類lei材cai料liao的de消xiao耗hao量liang,製zhi作zuo出chu原yuan煤mei、石灰等物質相應消耗量的預算表格,並通過工作人員在拿取相應燃料物資前對物資質量、使用目的等進行記錄的方式,盡可能避免資源浪費情況的出現,從而降低了生產成本。
2.2 運行材料采購成本控製
城cheng市shi生sheng活huo垃la圾ji是shi政zheng府fu部bu門men無wu償chang提ti供gong的de,不bu存cun在zai原yuan材cai料liao的de采cai購gou費fei用yong,因yin此ci,在zai焚fen燒shao發fa電dian過guo程cheng中zhong,占zhan用yong采cai購gou成cheng本ben的de材cai料liao主zhu要yao為wei垃la圾ji焚fen燒shao係xi統tong維wei護hu和he更geng新xin所suo需xu的de各ge種zhong設she備bei配pei件jian,以yi及ji為wei使shi垃la圾ji焚fen燒shao排pai放fang物wu質zhi達da標biao而er逐zhu年nian增zeng加jia的de諸zhu如ru廢fei氣qi處chu理li所suo需xu的de活huo性xing炭tan、Ca(OH)2、氨水等;用於廢灰處理的水泥、螯合劑等;用yong於yu處chu理li垃la圾ji池chi滲shen漏lou液ye的de化hua學xue藥yao劑ji等deng消xiao耗hao性xing環huan保bao材cai料liao。由you於yu焚fen燒shao發fa電dian所suo需xu原yuan材cai料liao數shu量liang和he種zhong類lei比bi較jiao多duo,在zai采cai購gou過guo程cheng中zhong,工gong作zuo人ren員yuan盡jin量liang選xuan擇ze信xin譽yu好hao、質zhi量liang可ke靠kao的de供gong應ying商shang,降jiang低di采cai購gou成cheng本ben。同tong時shi,工gong作zuo人ren員yuan應ying當dang加jia強qiang對dui材cai料liao的de管guan理li力li度du,盡jin量liang避bi免mian出chu現xian因yin材cai料liao隨sui意yi堆dui放fang而er導dao致zhi的de浪lang費fei情qing況kuang,從cong而er降jiang低di材cai料liao采cai購gou所suo需xu的de成cheng本ben。
2.3 廢氣處理成本控製
垃圾焚燒產生的廢氣中,存在大量的粉塵、酸性氣體、buwanquanranshaochanwudengyouhaiwuzhi,zhexiewuzhizhijiepaifangdaokongqizhong,huiduiziranhuanjingzaochengyidingdepohuai。xianjieduan,dabufenlajifenshaofadianchangweijiangdifeiqizhonger噁yingdenongdu,caiyongbanganfayanqichulixitongyudaishichuchenqixiangjiehedeyanqijinghuagongyi,yiyizhier噁yingdeshengchengliang。shouxiangongzuorenyuanyingxuanyonggaoxiaodedaishichuchenqi,bingshichuchenqirukouchudewenduzai200℃以下;其次,在進行袋式除塵前,在反應器入口的煙道上安裝活性炭噴射裝置,吸附已生成的二噁英;最zui後hou為wei保bao障zhang二er噁噁英ying的de排pai放fang量liang符fu合he當dang前qian排pai放fang標biao準zhun,工gong作zuo人ren員yuan應ying依yi據ju垃la圾ji燃ran燒shao的de實shi際ji情qing況kuang,定ding期qi更geng換huan除chu塵chen器qi。在zai此ci過guo程cheng中zhong為wei降jiang低di廢fei氣qi處chu理li的de成cheng本ben,工gong作zuo人ren員yuan可ke以yi通tong過guo將jiang收shou集ji的de二er噁噁英ying售shou賣mai給gei相xiang應ying化hua工gong企qi業ye的de方fang式shi獲huo得de一yi定ding的de經jing濟ji利li益yi。
2.4 廢灰處理成本控製
廢(fei)灰(hui)焚(fen)燒(shao)垃(la)圾(ji)產(chan)生(sheng)的(de)飛(fei)灰(hui)與(yu)垃(la)圾(ji)焚(fen)燒(shao)產(chan)生(sheng)的(de)爐(lu)渣(zha),是(shi)垃(la)圾(ji)在(zai)焚(fen)燒(shao)發(fa)電(dian)過(guo)程(cheng)中(zhong)產(chan)生(sheng)的(de)兩(liang)種(zhong)主(zhu)要(yao)廢(fei)灰(hui),其(qi)中(zhong)飛(fei)灰(hui)中(zhong)含(han)有(you)一(yi)定(ding)量(liang)的(de)有(you)害(hai)物(wu)質(zhi),為(wei)避(bi)免(mian)直(zhi)接(jie)排(pai)放(fang)對(dui)環(huan)境(jing)產(chan)生(sheng)的(de)汙(wu)染(ran),工(gong)作(zuo)人(ren)員(yuan)可(ke)以(yi)利(li)用(yong)氣(qi)力(li)運(yun)輸(shu)的(de)方(fang)式(shi)將(jiang)其(qi)運(yun)送(song)至(zhi)灰(hui)倉(cang)儲(chu)存(cun),然(ran)後(hou)利(li)用(yong)灰(hui)罐(guan)車(che)將(jiang)其(qi)送(song)至(zhi)飛(fei)灰(hui)穩(wen)定(ding)化(hua)車(che)間(jian),利(li)用(yong)螯(ao)合(he)劑(ji)進(jin)行(xing)穩(wen)定(ding)化(hua)處(chu)理(li),再(zai)利(li)用(yong)水(shui)泥(ni)將(jiang)其(qi)固(gu)化(hua)成(cheng)塊(kuai),經(jing)環(huan)保(bao)部(bu)門(men)檢(jian)驗(yan)水(shui)泥(ni)塊(kuai)的(de)各(ge)項(xiang)指(zhi)標(biao)符(fu)合(he)要(yao)求(qiu)後(hou),對(dui)其(qi)進(jin)行(xing)填(tian)埋(mai),降(jiang)低(di)汙(wu)染(ran)環(huan)境(jing)的(de)危(wei)險(xian);而(er)爐(lu)渣(zha)中(zhong)存(cun)在(zai)一(yi)定(ding)的(de)金(jin)屬(shu)元(yuan)素(su),工(gong)作(zuo)人(ren)員(yuan)在(zai)進(jin)行(xing)爐(lu)渣(zha)處(chu)理(li)的(de)過(guo)程(cheng)中(zhong),可(ke)以(yi)在(zai)完(wan)成(cheng)收(shou)集(ji)後(hou),將(jiang)其(qi)送(song)至(zhi)飛(fei)灰(hui)處(chu)理(li)廠(chang),通(tong)過(guo)篩(shai)分(fen)分(fen)揀(jian)的(de)方(fang)式(shi),分(fen)離(li)並(bing)回(hui)收(shou)爐(lu)渣(zha)中(zhong)所(suo)含(han)有(you)的(de)金(jin)屬(shu)元(yuan)素(su)。在(zai)分(fen)揀(jian)後(hou)的(de)爐(lu)渣(zha)中(zhong)加(jia)入(ru)一(yi)定(ding)量(liang)的(de)水(shui)泥(ni),並(bing)進(jin)行(xing)攪(jiao)拌(ban)並(bing)放(fang)入(ru)磚(zhuan)模(mo)中(zhong)壓(ya)製(zhi)成(cheng)型(xing)。在(zai)此(ci)過(guo)程(cheng)中(zhong),為(wei)加(jia)強(qiang)對(dui)廢(fei)灰(hui)處(chu)理(li)成(cheng)本(ben)的(de)管(guan)控(kong),工(gong)作(zuo)人(ren)員(yuan)可(ke)以(yi)通(tong)過(guo)向(xiang)外(wai)售(shou)賣(mai)廢(fei)灰(hui)水(shui)泥(ni)磚(zhuan)的(de)方(fang)式(shi),獲(huo)得(de)一(yi)定(ding)的(de)經(jing)濟(ji)效(xiao)益(yi),從(cong)而(er)達(da)到(dao)變(bian)廢(fei)為(wei)寶(bao)的(de)效(xiao)果(guo)。
2.5 廢水處理成本控製
垃圾焚燒過程中產生的廢水主要包括垃圾貯存過程中產生的垃圾滲濾液、垃圾焚燒過程中生成的化學處理汙水、鍋(guo)爐(lu)排(pai)放(fang)清(qing)洗(xi)所(suo)產(chan)生(sheng)的(de)廢(fei)水(shui)及(ji)生(sheng)產(chan)過(guo)程(cheng)中(zhong)產(chan)生(sheng)的(de)生(sheng)活(huo)汙(wu)水(shui)等(deng)。垃(la)圾(ji)滲(shen)濾(lv)液(ye)的(de)產(chan)生(sheng)是(shi)由(you)於(yu)當(dang)垃(la)圾(ji)被(bei)堆(dui)放(fang)到(dao)垃(la)圾(ji)池(chi)時(shi),其(qi)外(wai)在(zai)的(de)水(shui)分(fen)子(zi)與(yu)分(fen)子(zi)間(jian)的(de)水(shui)分(fen)子(zi)經(jing)過(guo)積(ji)壓(ya)、發酵並逐漸滲到垃圾池底部,因其含有病毒、重金屬、鹵lu代dai芳fang烴ting等deng汙wu染ran物wu,是shi一yi種zhong會hui對dui環huan境jing產chan生sheng嚴yan重zhong破po壞huai的de高gao濃nong度du有you機ji汙wu水shui。因yin此ci,在zai處chu理li垃la圾ji滲shen濾lv液ye時shi,當dang其qi流liu入ru垃la圾ji池chi底di部bu後hou,這zhe些xie濾lv液ye會hui從cong垃la圾ji池chi流liu到dao汙wu水shui溝gou,再zai到dao滲shen濾lv池chi,最zui後hou由you汙wu水shui泵beng將jiang其qi輸shu送song至zhi汙wu水shui處chu理li站zhan[4]。此ci時shi工gong作zuo人ren員yuan應ying對dui其qi進jin行xing環huan保bao處chu理li,盡jin可ke能neng地di將jiang廢fei水shui中zhong含han有you的de金jin屬shu物wu質zhi提ti取qu出chu來lai,獲huo得de一yi定ding的de經jing濟ji效xiao益yi。同tong時shi,在zai確que保bao廢fei水shui中zhong的de汙wu染ran物wu含han量liang達da到dao國guo家jia要yao求qiu後hou,可ke以yi將jiang其qi進jin行xing循xun環huan利li用yong,從cong而er降jiang低di對dui水shui資zi源yuan的de消xiao耗hao。
2.6 維修維護成本控製
lajifenshaofadianchangderichangweihuhejihuajianxiushiyouwaibaorenyuanwanchengde,jinnianlai,youyuwailaiwugongrenyuandegongzizhunianshangzhang,daozhiweihuweixiudechengbenyezaibuduanshangsheng。weijiejuezheyiwenti,fenshaofadianchangkeyitongguojiadaduigongzuorenyuanweixiuweihunenglipeiyanglidudefangshi,shigongzuorenyuankeyizixingbaoyangfenshaofadianshebei,congerjiangdiweixiuweihuguochengsuoxuyaodechengben。
總(zong)之(zhi),對(dui)城(cheng)市(shi)生(sheng)活(huo)垃(la)圾(ji)焚(fen)燒(shao)發(fa)電(dian)運(yun)行(xing)的(de)成(cheng)本(ben)控(kong)製(zhi)研(yan)究(jiu),有(you)利(li)於(yu)降(jiang)低(di)其(qi)運(yun)行(xing)成(cheng)本(ben),從(cong)而(er)提(ti)高(gao)經(jing)濟(ji)效(xiao)益(yi),為(wei)城(cheng)市(shi)現(xian)代(dai)化(hua)建(jian)設(she)與(yu)發(fa)展(zhan)提(ti)供(gong)更(geng)加(jia)有(you)利(li)的(de)保(bao)障(zhang)和(he)支(zhi)持(chi),因(yin)此(ci),垃(la)圾(ji)焚(fen)燒(shao)發(fa)電(dian)具(ju)有(you)十(shi)分(fen)顯(xian)著(zhu)的(de)研(yan)究(jiu)價(jia)值(zhi)和(he)意(yi)義(yi)。
來源:當代電力文化





