天然二水(shui)石(shi)(shi)(shi)膏(gao)(gao)(CaSO4·2H2O)又稱為(wei)(wei)生石(shi)(shi)(shi)膏(gao)(gao),經過煅(duan)燒(shao)、磨細可得β型(xing)半水(shui)石(shi)(shi)(shi)膏(gao)(gao)(CaSO4·1/2H2O),即(ji)(ji)建筑(zhu)石(shi)(shi)(shi)膏(gao)(gao),又稱熟石(shi)(shi)(shi)膏(gao)(gao)、灰(hui)泥。若煅(duan)燒(shao)溫度為(wei)(wei)190 °C可得模型(xing)石(shi)(shi)(shi)膏(gao)(gao),其細度和白度均比建筑(zhu)石(shi)(shi)(shi)膏(gao)(gao)高(gao)。若將生石(shi)(shi)(shi)膏(gao)(gao)在400-500 °C或高(gao)于800 °C下煅(duan)燒(shao),即(ji)(ji)得地板(ban)石(shi)(shi)(shi)膏(gao)(gao),其凝結、硬化較慢,但硬化后(hou)強度、耐(nai)磨性(xing)(xing)和耐(nai)水(shui)性(xing)(xing)均較普通(tong)(tong)建筑(zhu)石(shi)(shi)(shi)膏(gao)(gao)為(wei)(wei)好。通(tong)(tong)常為(wei)(wei)白色(se)、無色(se),無色(se)透明晶(jing)體稱為(wei)(wei)透石(shi)(shi)(shi)膏(gao)(gao),有時(shi)因(yin)含雜質而(er)成灰(hui)、淺黃、淺褐等色(se)。
石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)屬單斜(xie)晶(jing)(jing)系(xi),解理度很高,容易裂開(kai)成(cheng)(cheng)(cheng)薄片。將石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)加熱(re)100~200°C,失去(qu)部分(fen)結(jie)晶(jing)(jing)水(shui)(shui)(shui)(shui)(shui),可得(de)(de)到(dao)半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。 α型半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)結(jie)晶(jing)(jing)良(liang)好、堅實; β型半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)是片狀并有(you)(you)裂紋的(de)(de)(de)晶(jing)(jing)體,結(jie)晶(jing)(jing)很細,比表面積比 α型半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)大得(de)(de)多。生產石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)制品(pin)時, α型半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)比 β型需水(shui)(shui)(shui)(shui)(shui)量少(shao),制品(pin)有(you)(you)較(jiao)高的(de)(de)(de)密(mi)實度和(he)強(qiang)度。通(tong)常用(yong)蒸壓釜在飽和(he)蒸汽介(jie)質中蒸煉(lian)而(er)成(cheng)(cheng)(cheng)的(de)(de)(de)是 α型半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao),也(ye)稱高強(qiang)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao);用(yong)炒鍋或回(hui)轉(zhuan)窯敞(chang)開(kai)裝置煅(duan)煉(lian)而(er)成(cheng)(cheng)(cheng)的(de)(de)(de)是β型半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao),亦即建(jian)筑石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。半水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)與(yu)水(shui)(shui)(shui)(shui)(shui)拌和(he)的(de)(de)(de)漿體重新形成(cheng)(cheng)(cheng)二水(shui)(shui)(shui)(shui)(shui)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、在干(gan)燥過程(cheng)中迅速(su)凝結(jie)硬(ying)(ying)(ying)化而(er)獲得(de)(de)強(qiang)度,但遇水(shui)(shui)(shui)(shui)(shui)則(ze)軟(ruan)化。石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)是生產石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)膠凝材料(liao)和(he)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)建(jian)筑制品(pin)的(de)(de)(de)主要原料(liao),也(ye)是硅酸鹽水(shui)(shui)(shui)(shui)(shui)泥的(de)(de)(de)緩凝劑。石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)經(jing)(jing)600~800°C煅(duan)燒(shao)后,加入少(shao)量石(shi)(shi)(shi)(shi)灰等催(cui)化劑共同磨(mo)(mo)細,可以(yi)得(de)(de)到(dao)硬(ying)(ying)(ying)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)膠結(jie)料(liao)(也(ye)稱金氏膠結(jie)料(liao));經(jing)(jing)900~1000°C煅(duan)燒(shao)并磨(mo)(mo)細,可以(yi)得(de)(de)到(dao)高溫煅(duan)燒(shao)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。用(yong)這兩種石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)制得(de)(de)的(de)(de)(de)制品(pin),強(qiang)度高于建(jian)筑石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)制品(pin),而(er)且硬(ying)(ying)(ying)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)膠結(jie)料(liao)有(you)(you)較(jiao)好的(de)(de)(de)隔熱(re)性,高溫煅(duan)燒(shao)石(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)有(you)(you)較(jiao)好的(de)(de)(de)耐(nai)磨(mo)(mo)性和(he)抗(kang)水(shui)(shui)(shui)(shui)(shui)性。
目前,我們公司可設計生產數十(shi)種規格的生產線(xian),并能根據用戶的不同需求量身定做不同生產工藝的生產線(xian)。
階段
石(shi)膏粉(fen)生產線采用國內成熟先(xian)進的(de)工藝(yi)設備(bei),如立式磨粉(fen)機、沸騰爐等。 |
階(jie)段
破碎機(ji)將大(da)尺寸的石膏(gao)礦石破碎成小于30mm的小塊顆粒,輸(shu)送磨機(ji)進(jin)行(xing)粉磨; |
第三(san)階段(duan)
選粉(fen)(fen)機將粉(fen)(fen)磨后達到(dao)產(chan)品所需細度的(de)石膏(gao)生粉(fen)(fen)送入沸騰爐(lu)進行(xing)煅(duan)燒(shao),其余部(bu)分返回磨機進行(xing)再(zai)次粉(fen)(fen)磨直合格。沸騰爐(lu)是建筑(zhu)石膏(gao)煅(duan)燒(shao)設(she)備(bei)中在我國應用廣的(de)設(she)備(bei),該(gai)設(she)備(bei)結構簡單,操作方(fang)便。 |
第四階段
煅燒(shao)后的合格(ge)石膏粉送入(ru)(ru)熟料倉儲存或送入(ru)(ru)制品車間使用(yong)。 |
我(wo)公司設(she)(she)計的(de)石膏(gao)粉生(sheng)產線采用國(guo)內成熟(shu)先進的(de)工藝設(she)(she)備,如(ru)歐版T形(xing)磨(mo)等(deng)。歐版T形(xing)磨(mo)是建筑(zhu)石膏(gao)煅燒設(she)(she)備中在(zai)我(wo)國(guo)應用廣的(de)設(she)(she)備。結(jie)構簡單、小巧、生(sheng)產能力大(da) 設(she)(she)備結(jie)構緊湊、不易損壞、占(zhan)地面積(ji)小、耗(hao)損低操作(zuo)方便。
新型(xing)(xing)建(jian)材(cai)(cai)(cai)(cai)(cai)具(ju)有(you)輕(qing)(qing)質(zhi)、高強(qiang)度、保(bao)溫、節能(neng)、節土(tu)、裝飾等優良特性。采用新型(xing)(xing)建(jian)材(cai)(cai)(cai)(cai)(cai)不(bu)但使房屋功能(neng)大大改善,還可以使建(jian)筑(zhu)(zhu)物內(nei)外更具(ju)現代氣(qi)息,滿足人們的(de)審美要求。新型(xing)(xing)建(jian)材(cai)(cai)(cai)(cai)(cai)的(de)性能(neng)和(he)(he)功用各(ge)不(bu)相同(tong),生產(chan)新型(xing)(xing)建(jian)材(cai)(cai)(cai)(cai)(cai)產(chan)品(pin)(pin)(pin)的(de)原材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)及工藝(yi)方法也各(ge)不(bu)相同(tong)。有(you)的(de)新型(xing)(xing)建(jian)材(cai)(cai)(cai)(cai)(cai)可以顯著減輕(qing)(qing)建(jian)筑(zhu)(zhu)物自(zi)重,為(wei)推廣輕(qing)(qing)型(xing)(xing)建(jian)筑(zhu)(zhu)結(jie)構(gou)創造(zao)了條(tiao)件,大大加快了建(jian)房速度。有(you)的(de)品(pin)(pin)(pin)種(zhong)重在花色,如裝飾裝修材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao);有(you)的(de)品(pin)(pin)(pin)種(zhong)重在功能(neng),如保(bao)溫材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao);有(you)的(de)則通(tong)過深加工衍生出多個品(pin)(pin)(pin)種(zhong),如新型(xing)(xing)建(jian)筑(zhu)(zhu)板(ban)(ban)材(cai)(cai)(cai)(cai)(cai)等。以新型(xing)(xing)建(jian)筑(zhu)(zhu)板(ban)(ban)材(cai)(cai)(cai)(cai)(cai)為(wei)例。目(mu)前(qian)新型(xing)(xing)建(jian)筑(zhu)(zhu)板(ban)(ban)材(cai)(cai)(cai)(cai)(cai)有(you)幾十個品(pin)(pin)(pin)種(zhong),其中紙面石膏板(ban)(ban)、玻(bo)璃(li)纖維(wei)增強(qiang)水泥(GRC)板(ban)(ban)、無石棉硅鈣板(ban)(ban)是目(mu)前(qian)中國生產(chan)量、應用普遍的(de)三種(zhong)新型(xing)(xing)建(jian)筑(zhu)(zhu)板(ban)(ban)材(cai)(cai)(cai)(cai)(cai)。這三種(zhong)板(ban)(ban)材(cai)(cai)(cai)(cai)(cai)不(bu)但所采用的(de)原料(liao)(liao)(liao)(liao)不(bu)同(tong),生產(chan)工藝(yi)不(bu)同(tong),其性能(neng)和(he)(he)功用也不(bu)同(tong)。它(ta)們所用的(de)原材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)均為(wei)非金屬材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)而且很容易得到,采用它(ta)們作為(wei)原始(shi)板(ban)(ban)材(cai)(cai)(cai)(cai)(cai),再分別配(pei)上防(fang)滲、保(bao)溫、防(fang)火等功能(neng)材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao),采用復合技(ji)術(shu),可生產(chan)出各(ge)種(zhong)輕(qing)(qing)質(zhi)和(he)(he)性能(neng)優越的(de)新型(xing)(xing)墻體材(cai)(cai)(cai)(cai)(cai)料(liao)(liao)(liao)(liao)。