工作原理
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(zhu)要設(she)備
漿液制備系(xi)統(tong)(tong)(tong)(tong)(tong)、堿液制備系(xi)統(tong)(tong)(tong)(tong)(tong)、脫(tuo)硫塔系(xi)統(tong)(tong)(tong)(tong)(tong)、除霧系(xi)統(tong)(tong)(tong)(tong)(tong)、脫(tuo)硫產(chan)物除水系(xi)統(tong)(tong)(tong)(tong)(tong)、電控(kong)系(xi)統(tong)(tong)(tong)(tong)(tong)、檢測系(xi)統(tong)(tong)(tong)(tong)(tong)等。
工藝優點(dian)
(1)具(ju)有(you)較好的(de)經濟技術指標。運行(xing)成本僅為其它工(gong)藝的(de)30~70%。
(2)脫硫效(xiao)率高達99.9%以上(shang),可滿(man)足(zu)環保SO2排放低于100mg/Nm3的要求。
(3)吸收劑(ji)價格便(bian)宜。
(4)技(ji)術(shu)成熟,運(yun)行可(ke)靠性高。由于設(she)置了多級反應(ying)吸收裝置,因(yin)此當任何(he)一(yi)臺(tai)設(she)備出現(xian)問(wen)題(ti)時,均有其它(ta)設(she)備可(ke)以補足脫硫效率(lv),因(yin)此整套系統可(ke)以不(bu)間(jian)斷地運(yun)行。
(5)設(she)備檢修方便(bian),每層噴(pen)淋(lin),每個噴(pen)淋(lin)管均(jun)可單獨(du)拆卸,可實現在線更換(huan)噴(pen)頭,不需要停(ting)機(ji)更換(huan)。
(6)產(chan)生的(de)脫硫產(chan)物為石膏(gao),可以(yi)綜(zong)合(he)利用,無廢物排出。