工作原理
石膏法脫硫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(ye)制(zhi)備系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、堿液(ye)制(zhi)備系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、脫硫塔系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、除霧系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、脫硫產(chan)物除水(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、電(dian)控系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、檢測系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)等。
工藝優(you)點
(1)具有較好的經濟技術指標(biao)。運(yun)行成本(ben)僅為(wei)其它工藝的30~70%。
(2)脫硫效率高(gao)達99.9%以上(shang),可滿足環保SO2排放低(di)于(yu)100mg/Nm3的要(yao)求(qiu)。
(3)吸收劑價(jia)格便宜。
(4)技術成熟,運行(xing)可(ke)靠性高。由于設置了多級反應吸(xi)收裝置,因(yin)此(ci)當任何(he)一(yi)臺設備出現問題時,均有其它設備可(ke)以補足(zu)脫硫效(xiao)率,因(yin)此(ci)整套(tao)系統可(ke)以不間斷地(di)運行(xing)。
(5)設(she)備檢修(xiu)方(fang)便,每層噴(pen)淋(lin),每個噴(pen)淋(lin)管均可單(dan)獨(du)拆卸(xie),可實(shi)現在線更換噴(pen)頭,不需要停機更換。
(6)產生的脫硫產物(wu)為(wei)石膏,可以綜合利用(yong),無廢物(wu)排出。