天然(ran)石膏(gao)粉生產線
天(tian)然石(shi)膏簡(jian)介(jie)
天(tian)然二水石(shi)膏(CaSO4·2H2O)又(you)稱為(wei)生石(shi)膏,經過煅燒、磨細可得β型(xing)半水石(shi)膏(CaSO4·?H2O),即(ji)建筑石(shi)膏,又(you)稱 熟石(shi)膏 、 灰泥 。石(shi)膏礦(kuang)(kuang)以(yi)沉積型(xing)礦(kuang)(kuang)床為(wei)主,儲量(liang)占(zhan)全國90%以(yi)上,后生型(xing)及熱(re)液(ye)交(jiao)代型(xing)石(shi)膏礦(kuang)(kuang)不很重(zhong)要。石(shi)膏礦(kuang)(kuang)在各地質時代均(jun)有產(chan)出,以(yi)早白(bai)堊紀和(he)第(di)三紀沉積型(xing)石(shi)膏礦(kuang)(kuang)為(wei)最(zui)重(zhong)要。
天然石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)中用(yong)(yong)途最(zui)廣(guang)的(de)(de)(de)是(shi)二(er)(er)水(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao),其有(you)效成分(fen)為二(er)(er)水(shui)硫酸(suan)鈣,一般(ban)根(gen)據礦石(shi)(shi)(shi)(shi)中二(er)(er)水(shui)硫酸(suan)鈣含(han)量(liang)對(dui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)進行等(deng)級劃分(fen)。石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)應(ying)用(yong)(yong)領(ling)域較(jiao)寬(kuan),產(chan)品(pin)(pin)種類也較(jiao)多,不(bu)同的(de)(de)(de)用(yong)(yong)途對(dui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)原料的(de)(de)(de)質量(liang)有(you)著不(bu)同的(de)(de)(de)要求,高(gao)(gao)品(pin)(pin)位石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)多被用(yong)(yong)于(yu)特種石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)產(chan)品(pin)(pin)的(de)(de)(de)生產(chan)原料,如食用(yong)(yong)、醫用(yong)(yong)、藝術品(pin)(pin)、模(mo)型和化(hua)工(gong)填料等(deng);二(er)(er)水(shui)硫酸(suan)鈣含(han)量(liang)低于(yu)60%的(de)(de)(de)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)礦則(ze)很(hen)少得到應(ying)用(yong)(yong);高(gao)(gao)于(yu)60%的(de)(de)(de)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)礦石(shi)(shi)(shi)(shi),則(ze)根(gen)據其含(han)量(liang)的(de)(de)(de)不(bu)同,被用(yong)(yong)于(yu)建材、建筑等(deng)各個領(ling)域。