天然(ran)石膏粉生產線

天(tian)然(ran)石膏簡介

天然二水石(shi)膏(gao)（CaSO4·2H2O）又(you)稱為(wei)(wei)(wei)生(sheng)(sheng)石(shi)膏(gao)，經過煅(duan)燒、磨細可得β型(xing)半(ban)水石(shi)膏(gao)（CaSO4·?H2O），即建筑石(shi)膏(gao)，又(you)稱 熟石(shi)膏(gao) 、 灰泥(ni) 。石(shi)膏(gao)礦(kuang)(kuang)以沉積型(xing)礦(kuang)(kuang)床為(wei)(wei)(wei)主，儲(chu)量占全國(guo)90%以上，后生(sheng)(sheng)型(xing)及熱液交代(dai)型(xing)石(shi)膏(gao)礦(kuang)(kuang)不很重要(yao)。石(shi)膏(gao)礦(kuang)(kuang)在各(ge)地質時代(dai)均有產出，以早(zao)白堊紀和第三紀沉積型(xing)石(shi)膏(gao)礦(kuang)(kuang)為(wei)(wei)(wei)最重要(yao)。

天然石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)中(zhong)用(yong)(yong)(yong)(yong)途最廣的(de)(de)是二水(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)，其(qi)有效成分為二水(shui)(shui)硫(liu)酸鈣(gai)，一般根據礦石(shi)(shi)(shi)(shi)中(zhong)二水(shui)(shui)硫(liu)酸鈣(gai)含量(liang)對石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)進行等級劃分。石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)應用(yong)(yong)(yong)(yong)領(ling)域較(jiao)寬，產(chan)品種類也較(jiao)多(duo)，不(bu)(bu)同(tong)(tong)的(de)(de)用(yong)(yong)(yong)(yong)途對石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)原(yuan)料(liao)的(de)(de)質(zhi)量(liang)有著不(bu)(bu)同(tong)(tong)的(de)(de)要求，高(gao)品位(wei)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)多(duo)被用(yong)(yong)(yong)(yong)于(yu)特種石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)產(chan)品的(de)(de)生(sheng)產(chan)原(yuan)料(liao)，如食(shi)用(yong)(yong)(yong)(yong)、醫用(yong)(yong)(yong)(yong)、藝術品、模型和化工填料(liao)等；二水(shui)(shui)硫(liu)酸鈣(gai)含量(liang)低于(yu)60%的(de)(de)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)礦則很少得到應用(yong)(yong)(yong)(yong)；高(gao)于(yu)60%的(de)(de)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)礦石(shi)(shi)(shi)(shi)，則根據其(qi)含量(liang)的(de)(de)不(bu)(bu)同(tong)(tong)，被用(yong)(yong)(yong)(yong)于(yu)建材、建筑等各個(ge)領(ling)域。