工作(zuo)原理
石灰石膏法脫硫法的原理是依據雙堿法脫硫與石灰石膏法脫硫相結合,利用電石渣中含有的OH-與煙氣中的二氧化硫反應,從而進行脫硫,達到排放要求。電石渣脫硫的產物脫硫石膏主要應用于凈水裝置和建筑行業。從而實現電石渣固廢的有效處理。
主要設備
漿液制備(bei)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、堿液制備(bei)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、脫(tuo)硫(liu)(liu)塔系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、除(chu)霧系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、脫(tuo)硫(liu)(liu)產物除(chu)水系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、電控系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、檢測系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)等。
工(gong)藝優點(dian)
(1)具有較好的經濟技(ji)術(shu)指標。運行成本(ben)僅(jin)為其它工藝的30~70%。
(2)脫硫效率(lv)高達99.9%以(yi)上,可滿足環(huan)保(bao)SO2排放低(di)于100mg/Nm3的要求(qiu)。
(3)吸(xi)收劑(ji)價格便(bian)宜。
(4)技術成熟,運行(xing)可靠性高。由于設(she)置了多(duo)級反應吸收裝置,因此(ci)當(dang)任(ren)何一臺設(she)備(bei)出(chu)現(xian)問題(ti)時,均有其它設(she)備(bei)可以補足脫(tuo)硫(liu)效率(lv),因此(ci)整套(tao)系統(tong)可以不間斷地運行(xing)。
(5)設備(bei)檢(jian)修方便,每層噴(pen)淋(lin)(lin),每個噴(pen)淋(lin)(lin)管均可單獨拆(chai)卸,可實現在線更(geng)(geng)換(huan)噴(pen)頭,不需要(yao)停機更(geng)(geng)換(huan)。
(6)產生的(de)脫硫產物為石膏,可以綜(zong)合利用,無廢(fei)物排出。