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廢氣凈化塔的原理與特點

時間:2019-01-25 查(cha)看:3958

廢氣(qi)(qi)凈(jing)(jing)化(hua)(hua)塔(ta)適用于(yu)電鍍生產、表(biao)面(mian)處理、單晶硅酸(suan)洗、半導(dao)體(ti)清洗、電子制造(zao)、漆包線(xian)、噴漆噴涂、涂裝生產等行(xing)業(ye)及(ji)領域。氣(qi)(qi)體(ti)凈(jing)(jing)化(hua)(hua)塔(ta)屬兩(liang)相(xiang)(xiang)逆向流(liu)填(tian)(tian)料吸(xi)(xi)收(shou)(shou)塔(ta)。廢氣(qi)(qi)體(ti)從廢氣(qi)(qi)處理塔(ta)體(ti)下方進氣(qi)(qi)口沿切向進入(ru)凈(jing)(jing)化(hua)(hua)塔(ta),在通風機的動力作(zuo)用下,迅速充滿進氣(qi)(qi)段空間(jian),然后均勻地通過(guo)均流(liu)段上(shang)升到(dao)一級填(tian)(tian)料吸(xi)(xi)收(shou)(shou)段。在填(tian)(tian)料的表(biao)面(mian)上(shang),氣(qi)(qi)相(xiang)(xiang)中酸(suan)性(或堿(jian)性)物質(zhi)與液相(xiang)(xiang)中堿(jian)性(或酸(suan)性)物質(zhi)發生化(hua)(hua)學(xue)反(fan)應,反(fan)應生成物質(zhi)(多為可溶性酸(suan)(堿(jian))類)隨吸(xi)(xi)收(shou)(shou)液流(liu)入(ru)下部貯液槽。未完全(quan)吸(xi)(xi)收(shou)(shou)的酸(suan)性(或堿(jian)性)氣(qi)(qi)體(ti)繼(ji)續上(shang)升進入(ru)一級噴淋段。 

廢氣(qi)凈化塔適(shi)用于(yu)電(dian)鍍生(sheng)產、表面(mian)處理、單晶硅(gui)酸洗、半導體清洗、電(dian)子(zi)制造、漆包線、噴(pen)漆噴(pen)涂、涂裝生(sheng)產等行業及(ji)領(ling)域。 

廢(fei)氣凈化塔工作原理 

氣(qi)(qi)(qi)(qi)體(ti)(ti)凈(jing)化(hua)(hua)塔:屬兩(liang)相(xiang)逆向(xiang)流(liu)填(tian)(tian)(tian)料(liao)吸(xi)收(shou)(shou)塔。廢(fei)氣(qi)(qi)(qi)(qi)體(ti)(ti)從廢(fei)氣(qi)(qi)(qi)(qi)處(chu)理塔體(ti)(ti)下(xia)方進氣(qi)(qi)(qi)(qi)口沿切向(xiang)進入凈(jing)化(hua)(hua)塔,在(zai)(zai)(zai)通風機的(de)(de)動力作用下(xia),迅速充滿(man)進氣(qi)(qi)(qi)(qi)段(duan)(duan)空(kong)間(jian),然后(hou)均(jun)勻地通過(guo)(guo)(guo)均(jun)流(liu)段(duan)(duan)上(shang)升到一級(ji)填(tian)(tian)(tian)料(liao)吸(xi)收(shou)(shou)段(duan)(duan)。在(zai)(zai)(zai)填(tian)(tian)(tian)料(liao)的(de)(de)表(biao)面上(shang),氣(qi)(qi)(qi)(qi)相(xiang)中(zhong)酸(suan)(suan)(suan)性(xing)(xing)(xing)(或堿性(xing)(xing)(xing))物(wu)(wu)質與液(ye)相(xiang)中(zhong)堿性(xing)(xing)(xing)(或酸(suan)(suan)(suan)性(xing)(xing)(xing))物(wu)(wu)質發生化(hua)(hua)學反應,反應生成物(wu)(wu)質(多為可溶性(xing)(xing)(xing)酸(suan)(suan)(suan)(堿)類)隨吸(xi)收(shou)(shou)液(ye)流(liu)入下(xia)部貯液(ye)槽。未完全吸(xi)收(shou)(shou)的(de)(de)酸(suan)(suan)(suan)性(xing)(xing)(xing)(或堿性(xing)(xing)(xing))氣(qi)(qi)(qi)(qi)體(ti)(ti)繼續(xu)上(shang)升進入一級(ji)噴(pen)(pen)淋(lin)段(duan)(duan)。在(zai)(zai)(zai)噴(pen)(pen)淋(lin)段(duan)(duan)中(zhong)吸(xi)收(shou)(shou)液(ye)從均(jun)布(bu)的(de)(de)噴(pen)(pen)嘴高(gao)速噴(pen)(pen)出,形成無數細小霧(wu)滴,與氣(qi)(qi)(qi)(qi)體(ti)(ti)充分(fen)混合(he)接觸(chu),繼續(xu)發生化(hua)(hua)學反應,然后(hou)酸(suan)(suan)(suan)性(xing)(xing)(xing)(堿性(xing)(xing)(xing))氣(qi)(qi)(qi)(qi)體(ti)(ti)上(shang)升到二級(ji)填(tian)(tian)(tian)料(liao)段(duan)(duan)、噴(pen)(pen)淋(lin)段(duan)(duan)進行與一級(ji)類似(si)的(de)(de)吸(xi)收(shou)(shou)過(guo)(guo)(guo)程(cheng)。二級(ji)與一級(ji)噴(pen)(pen)嘴密度(du)不(bu)同(tong),噴(pen)(pen)液(ye)壓力不(bu)同(tong),吸(xi)收(shou)(shou)酸(suan)(suan)(suan)性(xing)(xing)(xing)(堿性(xing)(xing)(xing))氣(qi)(qi)(qi)(qi)體(ti)(ti)濃度(du)范圍也(ye)有(you)所不(bu)同(tong)。在(zai)(zai)(zai)噴(pen)(pen)淋(lin)段(duan)(duan)及(ji)填(tian)(tian)(tian)料(liao)段(duan)(duan)兩(liang)相(xiang)接觸(chu)的(de)(de)過(guo)(guo)(guo)程(cheng)也(ye)是(shi)傳(chuan)熱與傳(chuan)質的(de)(de)過(guo)(guo)(guo)程(cheng)。通過(guo)(guo)(guo)控制空(kong)塔流(liu)速與滯(zhi)留時間(jian)保(bao)證(zheng)這一過(guo)(guo)(guo)程(cheng)的(de)(de)充分(fen)與穩定。廢(fei)氣(qi)(qi)(qi)(qi)處(chu)理塔體(ti)(ti)的(de)(de)上(shang)部是(shi)除(chu)霧(wu)段(duan)(duan),氣(qi)(qi)(qi)(qi)體(ti)(ti)中(zhong)所夾(jia)的(de)(de)吸(xi)收(shou)(shou)液(ye)霧(wu)滴在(zai)(zai)(zai)這里被清除(chu)下(xia)來,經過(guo)(guo)(guo)處(chu)理后(hou)的(de)(de)潔凈(jing)空(kong)氣(qi)(qi)(qi)(qi)從廢(fei)氣(qi)(qi)(qi)(qi)凈(jing)化(hua)(hua)塔上(shang)端排氣(qi)(qi)(qi)(qi)管排入大氣(qi)(qi)(qi)(qi)。 

氣體(ti)凈化塔的性能(neng)特點 

1、廢氣(qi)(qi)凈化(hua)(hua)設(she)(she)備適用(yong)范圍廣:化(hua)(hua)工、輕工、印染、醫(yi)藥、鋼鐵、機械、電子、儀表(biao)、電鍍等(deng)工業部門生產過(guo)程中(zhong)排放的有機廢氣(qi)(qi)、硫酸、硝酸、  鹽酸、  氫氟酸等(deng)尾氣(qi)(qi)及硫氧化(hua)(hua)物(SOx)、氮氧化(hua)(hua)物(NOx)、碳氧化(hua)(hua)化(hua)(hua)物(CO、CO2)、氰化(hua)(hua)物(HCN)等(deng)酸性氣(qi)(qi)體,采(cai)用(yong)工業廢氣(qi)(qi)凈化(hua)(hua)設(she)(she)備,都可得到(dao)滿意的效果。   

2、廢(fei)(fei)氣凈(jing)化效(xiao)(xiao)率高:酸(suan)(堿)霧廢(fei)(fei)氣凈(jing)化塔采用二(er)級逆向噴淋,填料比表面積(ji)大,由試驗研(yan)究確定(ding)的氣比保證了性能穩定(ding),對各(ge)種濃度的酸(suan)性(或堿性)廢(fei)(fei)氣凈(jing)化效(xiao)(xiao)率均可達85%~95%。   

3、廢氣(qi)處(chu)理設(she)備(bei)(bei)阻(zu)(zu)力(li)低(di):在保證足(zu)夠氣(qi)液接觸面積基礎(chu)上,工業廢氣(qi)凈化(hua)塔(ta)選用空(kong)氣(qi)動力(li)特(te)性填料品種(zhong)及結構形式,使設(she)備(bei)(bei)阻(zu)(zu)力(li)在額定風量下不超(chao)過40毫米水柱,是國內各(ge)種(zhong)填料吸(xi)收(shou)塔(ta)中(zhong)阻(zu)(zu)力(li)低(di)的(de)一種(zhong)。這對于配用耐(nai)腐蝕(shi)低(di)壓通風機極(ji)為有利。   

4、廢(fei)氣處理(li)設(she)備占(zhan)地(di)(di)面積小:工(gong)業廢(fei)氣凈化處理(li)塔采用PP、FRP等材質(zhi),將(jiang)塔體、吸收液槽、循環泵、吸收液管道系統組(zu)合(he)成一套完整的工(gong)業廢(fei)氣處理(li)設(she)備,結構緊湊,便于現場(chang)安裝及操作(zuo)管理(li),占(zhan)地(di)(di)面積小,無論(lun)對新建工(gong)程還是技改項目都可適應。  

廢氣凈化塔(ta)試(shi)用的填料(liao)(liao):聚丙烯鮑爾環、不銹鋼鮑爾環、多面(mian)空心球、階梯(ti)環、花環填料(liao)(liao)等。