天然(ran)石膏粉(fen)生產線

天然石(shi)膏簡介

天然二水(shui)石(shi)(shi)(shi)膏(gao)（CaSO4·2H2O）又稱(cheng)為(wei)生(sheng)石(shi)(shi)(shi)膏(gao)，經過(guo)煅燒、磨細可得β型半水(shui)石(shi)(shi)(shi)膏(gao)（CaSO4·?H2O），即(ji)建筑石(shi)(shi)(shi)膏(gao)，又稱(cheng) 熟(shu)石(shi)(shi)(shi)膏(gao) 、 灰泥(ni) 。石(shi)(shi)(shi)膏(gao)礦以(yi)(yi)(yi)沉積型礦床為(wei)主(zhu)，儲量占全(quan)國90%以(yi)(yi)(yi)上，后生(sheng)型及熱(re)液(ye)交代型石(shi)(shi)(shi)膏(gao)礦不很重要。石(shi)(shi)(shi)膏(gao)礦在各地質時代均有產出，以(yi)(yi)(yi)早白堊(e)紀(ji)和第(di)三紀(ji)沉積型石(shi)(shi)(shi)膏(gao)礦為(wei)最(zui)重要。

天然石(shi)(shi)膏(gao)(gao)(gao)中(zhong)用(yong)(yong)(yong)(yong)(yong)途最廣(guang)的(de)是二水(shui)石(shi)(shi)膏(gao)(gao)(gao)，其有效成(cheng)分為二水(shui)硫酸鈣，一般(ban)根據礦石(shi)(shi)中(zhong)二水(shui)硫酸鈣含量對石(shi)(shi)膏(gao)(gao)(gao)進行(xing)等級(ji)劃分。石(shi)(shi)膏(gao)(gao)(gao)應(ying)用(yong)(yong)(yong)(yong)(yong)領域較(jiao)寬，產(chan)品種(zhong)類也較(jiao)多(duo)，不同的(de)用(yong)(yong)(yong)(yong)(yong)途對石(shi)(shi)膏(gao)(gao)(gao)原料的(de)質(zhi)量有著不同的(de)要求，高品位石(shi)(shi)膏(gao)(gao)(gao)多(duo)被用(yong)(yong)(yong)(yong)(yong)于特種(zhong)石(shi)(shi)膏(gao)(gao)(gao)產(chan)品的(de)生產(chan)原料，如(ru)食用(yong)(yong)(yong)(yong)(yong)、醫用(yong)(yong)(yong)(yong)(yong)、藝術品、模(mo)型和化工填料等；二水(shui)硫酸鈣含量低于60%的(de)石(shi)(shi)膏(gao)(gao)(gao)礦則(ze)很少得到應(ying)用(yong)(yong)(yong)(yong)(yong)；高于60%的(de)石(shi)(shi)膏(gao)(gao)(gao)礦石(shi)(shi)，則(ze)根據其含量的(de)不同，被用(yong)(yong)(yong)(yong)(yong)于建(jian)材、建(jian)筑等各個領域。