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。
主要設備
漿液制備系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、堿液制備系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、脫硫塔系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、除霧系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、脫硫產物除水系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、電控系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)、檢(jian)測系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)等(deng)。
工藝(yi)優點
(1)具有較好的經濟技術指標。運行成(cheng)本僅為其它工藝的30~70%。
(2)脫硫效(xiao)率高達99.9%以上,可滿足環保SO2排放低于100mg/Nm3的要求(qiu)。
(3)吸收(shou)劑價格便宜(yi)。
(4)技術成熟,運行可(ke)靠性高。由于設(she)置了多級反應吸收(shou)裝置,因(yin)此當任何一臺設(she)備(bei)出(chu)現問題時,均有(you)其它設(she)備(bei)可(ke)以(yi)補足脫硫效(xiao)率,因(yin)此整(zheng)套系統可(ke)以(yi)不間斷地運行。
(5)設備檢修方便,每層噴(pen)(pen)淋,每個(ge)噴(pen)(pen)淋管均可單獨拆卸,可實現(xian)在(zai)線更換(huan)噴(pen)(pen)頭,不需要停機更換(huan)。
(6)產生的(de)脫硫產物(wu)(wu)為石膏,可以(yi)綜合利用(yong),無廢(fei)物(wu)(wu)排出。