天(tian)然石膏粉生產線

天然石膏簡介

天然二水石(shi)(shi)(shi)膏（CaSO4·2H2O）又稱(cheng)為生石(shi)(shi)(shi)膏，經(jing)過煅燒、磨(mo)細可得β型(xing)(xing)半(ban)水石(shi)(shi)(shi)膏（CaSO4·?H2O），即(ji)建筑石(shi)(shi)(shi)膏，又稱(cheng) 熟石(shi)(shi)(shi)膏 、 灰泥(ni) 。石(shi)(shi)(shi)膏礦以沉積型(xing)(xing)礦床(chuang)為主(zhu)，儲量占全國90%以上，后生型(xing)(xing)及熱液(ye)交代(dai)型(xing)(xing)石(shi)(shi)(shi)膏礦不很重(zhong)要(yao)。石(shi)(shi)(shi)膏礦在各地質(zhi)時代(dai)均有產出，以早白堊紀和第三紀沉積型(xing)(xing)石(shi)(shi)(shi)膏礦為最重(zhong)要(yao)。

天然石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)中用(yong)(yong)(yong)(yong)途最廣的(de)(de)(de)是二水(shui)石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)，其(qi)有效成分為二水(shui)硫(liu)酸(suan)鈣，一般根(gen)據(ju)礦(kuang)石(shi)(shi)中二水(shui)硫(liu)酸(suan)鈣含量(liang)(liang)對石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)進行等級劃(hua)分。石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)應(ying)用(yong)(yong)(yong)(yong)領域(yu)較寬(kuan)，產品種類(lei)也(ye)較多，不同的(de)(de)(de)用(yong)(yong)(yong)(yong)途對石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)原料的(de)(de)(de)質量(liang)(liang)有著不同的(de)(de)(de)要求，高品位石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)多被(bei)用(yong)(yong)(yong)(yong)于(yu)(yu)特種石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)產品的(de)(de)(de)生產原料，如(ru)食用(yong)(yong)(yong)(yong)、醫用(yong)(yong)(yong)(yong)、藝術品、模型(xing)和化工填料等；二水(shui)硫(liu)酸(suan)鈣含量(liang)(liang)低于(yu)(yu)60%的(de)(de)(de)石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)礦(kuang)則很少得到應(ying)用(yong)(yong)(yong)(yong)；高于(yu)(yu)60%的(de)(de)(de)石(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)礦(kuang)石(shi)(shi)，則根(gen)據(ju)其(qi)含量(liang)(liang)的(de)(de)(de)不同，被(bei)用(yong)(yong)(yong)(yong)于(yu)(yu)建材(cai)、建筑等各(ge)個(ge)領域(yu)。