天(tian)然(ran)二水石(shi)膏(gao)(CaSO4·2H2O)又稱(cheng)為生(sheng)石(shi)膏(gao),經過煅燒、磨細可得(de)β型半水石(shi)膏(gao)(CaSO4·1/2H2O),即建筑(zhu)石(shi)膏(gao),又稱(cheng)熟石(shi)膏(gao)、灰泥(ni)。若(ruo)煅燒溫度(du)為190 °C可得(de)模型石(shi)膏(gao),其細度(du)和(he)白(bai)度(du)均比建筑(zhu)石(shi)膏(gao)高。若(ruo)將生(sheng)石(shi)膏(gao)在400-500 °C或高于800 °C下煅燒,即得(de)地(di)板(ban)石(shi)膏(gao),其凝結、硬化(hua)較慢(man),但硬化(hua)后強度(du)、耐(nai)磨性(xing)(xing)和(he)耐(nai)水性(xing)(xing)均較普通建筑(zhu)石(shi)膏(gao)為好。通常為白(bai)色(se)、無色(se),無色(se)透明晶體稱(cheng)為透石(shi)膏(gao),有(you)時因(yin)含雜質而成(cheng)灰、淺(qian)(qian)黃、淺(qian)(qian)褐等色(se)。
石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)屬單斜(xie)晶(jing)(jing)系,解(jie)理度很(hen)高(gao),容易裂(lie)開成(cheng)(cheng)薄片。將(jiang)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)加(jia)熱100~200°C,失去(qu)部(bu)分結晶(jing)(jing)水(shui)(shui)(shui)(shui)(shui)(shui),可(ke)得(de)到(dao)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)。 α型(xing)(xing)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)結晶(jing)(jing)良好(hao)、堅(jian)實; β型(xing)(xing)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)是(shi)片狀并有(you)裂(lie)紋的(de)(de)(de)晶(jing)(jing)體(ti),結晶(jing)(jing)很(hen)細,比(bi)表(biao)面(mian)積(ji)比(bi) α型(xing)(xing)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)大得(de)多。生(sheng)產(chan)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)制品(pin)(pin)時(shi), α型(xing)(xing)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)比(bi) β型(xing)(xing)需水(shui)(shui)(shui)(shui)(shui)(shui)量少(shao),制品(pin)(pin)有(you)較高(gao)的(de)(de)(de)密實度和(he)(he)(he)強(qiang)度。通(tong)常用(yong)蒸(zheng)壓釜在飽和(he)(he)(he)蒸(zheng)汽介(jie)質(zhi)中(zhong)蒸(zheng)煉而(er)成(cheng)(cheng)的(de)(de)(de)是(shi) α型(xing)(xing)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao),也(ye)稱高(gao)強(qiang)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao);用(yong)炒(chao)鍋或回轉(zhuan)窯敞開裝置煅(duan)煉而(er)成(cheng)(cheng)的(de)(de)(de)是(shi)β型(xing)(xing)半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao),亦(yi)即建筑石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)。半(ban)水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)與水(shui)(shui)(shui)(shui)(shui)(shui)拌和(he)(he)(he)的(de)(de)(de)漿體(ti)重新形成(cheng)(cheng)二水(shui)(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)、在干燥(zao)過程(cheng)中(zhong)迅速凝(ning)結硬(ying)化(hua)而(er)獲得(de)強(qiang)度,但遇水(shui)(shui)(shui)(shui)(shui)(shui)則軟化(hua)。石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)是(shi)生(sheng)產(chan)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)膠凝(ning)材料(liao)和(he)(he)(he)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)建筑制品(pin)(pin)的(de)(de)(de)主要原料(liao),也(ye)是(shi)硅酸鹽水(shui)(shui)(shui)(shui)(shui)(shui)泥的(de)(de)(de)緩凝(ning)劑。石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)經600~800°C煅(duan)燒后,加(jia)入少(shao)量石(shi)(shi)(shi)灰等催化(hua)劑共同磨(mo)細,可(ke)以得(de)到(dao)硬(ying)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)膠結料(liao)(也(ye)稱金(jin)氏膠結料(liao));經900~1000°C煅(duan)燒并磨(mo)細,可(ke)以得(de)到(dao)高(gao)溫煅(duan)燒石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)。用(yong)這兩種石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)制得(de)的(de)(de)(de)制品(pin)(pin),強(qiang)度高(gao)于(yu)建筑石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)制品(pin)(pin),而(er)且(qie)硬(ying)石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)膠結料(liao)有(you)較好(hao)的(de)(de)(de)隔(ge)熱性(xing),高(gao)溫煅(duan)燒石(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)有(you)較好(hao)的(de)(de)(de)耐磨(mo)性(xing)和(he)(he)(he)抗水(shui)(shui)(shui)(shui)(shui)(shui)性(xing)。
目前,我們公(gong)司可(ke)設計生(sheng)產數十種規格的生(sheng)產線,并能根據用戶的不同需求量(liang)身定(ding)做不同生(sheng)產工藝的生(sheng)產線。
階段
石膏粉生產線采用國內(nei)成(cheng)熟先進(jin)的工藝設備,如立式磨粉機、沸騰爐等。 |
階段
破碎機將大尺寸的石(shi)膏礦(kuang)石(shi)破碎成(cheng)小于30mm的小塊顆粒(li),輸送(song)磨機進行(xing)粉磨; |
第三階段
選粉(fen)(fen)機(ji)將粉(fen)(fen)磨后達(da)到產品所需細(xi)度的(de)(de)石(shi)膏生(sheng)粉(fen)(fen)送入(ru)沸騰爐(lu)進行煅(duan)燒,其(qi)余部分(fen)返回磨機(ji)進行再次粉(fen)(fen)磨直合格(ge)。沸騰爐(lu)是建筑石(shi)膏煅(duan)燒設備中在(zai)我國應用廣的(de)(de)設備,該設備結構簡單,操(cao)作(zuo)方便。 |
第四階段
煅燒后的合格石(shi)膏粉送(song)入熟料倉儲存或送(song)入制品車間(jian)使用。 |
我(wo)公(gong)司設(she)(she)計的(de)(de)石膏(gao)粉生產(chan)線(xian)采(cai)用(yong)國內成熟先進(jin)的(de)(de)工藝設(she)(she)備,如(ru)歐版T形(xing)磨等。歐版T形(xing)磨是(shi)建(jian)筑石膏(gao)煅燒設(she)(she)備中(zhong)在我(wo)國應用(yong)廣的(de)(de)設(she)(she)備。結(jie)構(gou)簡單(dan)、小巧、生產(chan)能力大 設(she)(she)備結(jie)構(gou)緊湊、不易損壞(huai)、占地面積小、耗損低操作方便。
新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)材(cai)(cai)具(ju)有輕(qing)(qing)質、高強(qiang)度、保(bao)(bao)溫、節能(neng)(neng)、節土、裝飾(shi)等優良特性(xing)。采(cai)用(yong)(yong)新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)材(cai)(cai)不(bu)(bu)但(dan)使(shi)房屋功能(neng)(neng)大大改善,還可以(yi)(yi)使(shi)建(jian)筑(zhu)物(wu)內外更具(ju)現代(dai)氣息,滿足人們(men)的(de)(de)(de)審美要求。新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)材(cai)(cai)的(de)(de)(de)性(xing)能(neng)(neng)和(he)功用(yong)(yong)各(ge)不(bu)(bu)相同(tong),生(sheng)產新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)材(cai)(cai)產品(pin)的(de)(de)(de)原材(cai)(cai)料(liao)及工藝(yi)方(fang)法(fa)也各(ge)不(bu)(bu)相同(tong)。有的(de)(de)(de)新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)材(cai)(cai)可以(yi)(yi)顯著減輕(qing)(qing)建(jian)筑(zhu)物(wu)自重(zhong),為(wei)推廣(guang)輕(qing)(qing)型(xing)(xing)建(jian)筑(zhu)結構(gou)創造了條(tiao)件(jian),大大加快了建(jian)房速度。有的(de)(de)(de)品(pin)種(zhong)重(zhong)在(zai)花色(se),如(ru)裝飾(shi)裝修材(cai)(cai)料(liao);有的(de)(de)(de)品(pin)種(zhong)重(zhong)在(zai)功能(neng)(neng),如(ru)保(bao)(bao)溫材(cai)(cai)料(liao);有的(de)(de)(de)則(ze)通過深加工衍生(sheng)出(chu)(chu)多個(ge)品(pin)種(zhong),如(ru)新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)筑(zhu)板(ban)(ban)(ban)(ban)材(cai)(cai)等。以(yi)(yi)新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)筑(zhu)板(ban)(ban)(ban)(ban)材(cai)(cai)為(wei)例。目(mu)前新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)筑(zhu)板(ban)(ban)(ban)(ban)材(cai)(cai)有幾十個(ge)品(pin)種(zhong),其中紙面(mian)石(shi)膏(gao)板(ban)(ban)(ban)(ban)、玻璃纖維增(zeng)強(qiang)水泥(ni)(GRC)板(ban)(ban)(ban)(ban)、無石(shi)棉硅鈣板(ban)(ban)(ban)(ban)是目(mu)前中國生(sheng)產量、應用(yong)(yong)普遍的(de)(de)(de)三(san)種(zhong)新(xin)(xin)(xin)(xin)型(xing)(xing)建(jian)筑(zhu)板(ban)(ban)(ban)(ban)材(cai)(cai)。這三(san)種(zhong)板(ban)(ban)(ban)(ban)材(cai)(cai)不(bu)(bu)但(dan)所采(cai)用(yong)(yong)的(de)(de)(de)原料(liao)不(bu)(bu)同(tong),生(sheng)產工藝(yi)不(bu)(bu)同(tong),其性(xing)能(neng)(neng)和(he)功用(yong)(yong)也不(bu)(bu)同(tong)。它們(men)所用(yong)(yong)的(de)(de)(de)原材(cai)(cai)料(liao)均為(wei)非金屬材(cai)(cai)料(liao)而且很容易得到,采(cai)用(yong)(yong)它們(men)作為(wei)原始板(ban)(ban)(ban)(ban)材(cai)(cai),再(zai)分別(bie)配上(shang)防滲、保(bao)(bao)溫、防火等功能(neng)(neng)材(cai)(cai)料(liao),采(cai)用(yong)(yong)復(fu)合技術,可生(sheng)產出(chu)(chu)各(ge)種(zhong)輕(qing)(qing)質和(he)性(xing)能(neng)(neng)優越的(de)(de)(de)新(xin)(xin)(xin)(xin)型(xing)(xing)墻體材(cai)(cai)料(liao)。