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(bei)
漿(jiang)液制(zhi)備系(xi)統(tong)(tong)(tong)(tong)、堿液制(zhi)備系(xi)統(tong)(tong)(tong)(tong)、脫(tuo)硫塔系(xi)統(tong)(tong)(tong)(tong)、除霧系(xi)統(tong)(tong)(tong)(tong)、脫(tuo)硫產物除水(shui)系(xi)統(tong)(tong)(tong)(tong)、電(dian)控系(xi)統(tong)(tong)(tong)(tong)、檢測系(xi)統(tong)(tong)(tong)(tong)等。
工藝優點(dian)
(1)具有較好的經濟技術指標。運行(xing)成本僅為(wei)其它工藝的30~70%。
(2)脫硫效率高達99.9%以上,可滿足環保SO2排放低(di)于(yu)100mg/Nm3的(de)要(yao)求。
(3)吸收(shou)劑(ji)價格便宜(yi)。
(4)技術成(cheng)熟,運行(xing)可靠性高。由于設置(zhi)了多級反應吸收裝置(zhi),因此當任何(he)一臺設備出現(xian)問題時(shi),均有(you)其它(ta)設備可以補足脫硫效率,因此整套系統可以不(bu)間斷(duan)地運行(xing)。
(5)設備檢修方便,每層(ceng)噴(pen)淋,每個噴(pen)淋管均可單(dan)獨拆卸,可實(shi)現在線更(geng)換噴(pen)頭,不需要停機更(geng)換。
(6)產(chan)生的(de)脫硫產(chan)物為石(shi)膏,可以綜合利(li)用,無廢物排出。