一、工作原理：

    廢氣(qi)凈化(hua)(hua)噴淋塔(ta)(ta)主(zhu)要(yao)的(de)運作方式是不斷酸(suan)霧(wu)廢氣(qi)由風管(guan)引入凈化(hua)(hua)塔(ta)(ta)，經(jing)(jing)過填料層，廢氣(qi)與(yu)氫氧化(hua)(hua)鈉(na)吸(xi)收液(ye)進(jin)行(xing)氣(qi)液(ye)兩相充分接(jie)觸(chu)吸(xi)收中和反應，酸(suan)霧(wu)廢氣(qi)經(jing)(jing)過凈化(hua)(hua)后(hou)，再經(jing)(jing)除(chu)霧(wu)板脫水除(chu)霧(wu)后(hou)由風機排入大(da)氣(qi)。吸(xi)收液(ye)在塔(ta)(ta)底經(jing)(jing)水泵增(zeng)壓后(hou)在塔(ta)(ta)頂噴淋而下(xia)，然后(hou)回流至塔(ta)(ta)底循環使(shi)用。凈化(hua)(hua)后(hou)的(de)酸(suan)霧(wu)廢氣(qi)達到地方排放標準的(de)排放要(yao)求，低于國(guo)家排放標準。

二、廢氣凈化噴淋塔特點(dian)

1.除塵脫(tuo)(tuo)硫效(xiao)率(lv)高(gao)，采用堿性洗滌(di)水時，脫(tuo)(tuo)硫效(xiao)率(lv)可達85%;

2.設備占(zhan)地少，安裝方便;

3.耗水(shui)、耗電指標較低(di);

4.耐腐蝕、不磨(mo)損(sun)，使用壽(shou)命長;

5.設(she)備運行可靠，維(wei)護簡(jian)單、方便。

三、廢氣凈化噴(pen)淋塔的結構

噴(pen)(pen)(pen)淋塔(ta)(ta)(ta)內(nei)(nei)填(tian)(tian)(tian)料(liao)層(ceng)作為(wei)(wei)氣(qi)液(ye)兩(liang)(liang)(liang)相間接(jie)觸構件的傳質(zhi)設備。填(tian)(tian)(tian)料(liao)塔(ta)(ta)(ta)底(di)部(bu)裝(zhuang)有(you)填(tian)(tian)(tian)料(liao)支(zhi)承(cheng)板(ban)，填(tian)(tian)(tian)料(liao)以(yi)亂堆方式放置(zhi)在(zai)支(zhi)承(cheng)板(ban)上(shang)(shang)。填(tian)(tian)(tian)料(liao)的上(shang)(shang)方安裝(zhuang)填(tian)(tian)(tian)料(liao)壓(ya)板(ban)，以(yi)防被上(shang)(shang)升氣(qi)流吹動(dong)。噴(pen)(pen)(pen)淋塔(ta)(ta)(ta)噴(pen)(pen)(pen)淋液(ye)從塔(ta)(ta)(ta)頂經液(ye)體(ti)分(fen)(fen)(fen)布(bu)器噴(pen)(pen)(pen)淋到填(tian)(tian)(tian)料(liao)上(shang)(shang)，并沿填(tian)(tian)(tian)料(liao)表面(mian)流下(xia)。氣(qi)體(ti)從塔(ta)(ta)(ta)底(di)送入，經氣(qi)體(ti)分(fen)(fen)(fen)布(bu)裝(zhuang)置(zhi)分(fen)(fen)(fen)布(bu)后，與液(ye)體(ti)呈逆(ni)流連續通過填(tian)(tian)(tian)料(liao)層(ceng)的空隙，在(zai)填(tian)(tian)(tian)料(liao)表面(mian)上(shang)(shang)，氣(qi)液(ye)兩(liang)(liang)(liang)相密切接(jie)觸進行(xing)傳質(zhi)。當液(ye)體(ti)沿填(tian)(tian)(tian)料(liao)層(ceng)向下(xia)流動(dong)時，有(you)時會出現壁流現象，壁流效(xiao)(xiao)應造成氣(qi)液(ye)兩(liang)(liang)(liang)相在(zai)填(tian)(tian)(tian)料(liao)層(ceng)中(zhong)分(fen)(fen)(fen)布(bu)不均，從而使傳質(zhi)效(xiao)(xiao)率下(xia)降。因此，噴(pen)(pen)(pen)淋塔(ta)(ta)(ta)內(nei)(nei)的填(tian)(tian)(tian)料(liao)層(ceng)分(fen)(fen)(fen)為(wei)(wei)兩(liang)(liang)(liang)段，中(zhong)間設置(zhi)再分(fen)(fen)(fen)布(bu)裝(zhuang)置(zhi)，經重新分(fen)(fen)(fen)布(bu)后噴(pen)(pen)(pen)淋到下(xia)層(ceng)填(tian)(tian)(tian)料(liao)上(shang)(shang)。