本文選題：鉛鋅尾礦 + 水泥��； 參考：《北京化工大學(xué)》2015年碩士論文

【摘要】：隨著礦產(chǎn)資源的需求量逐漸攀升,開(kāi)采完畢后排出的大量金屬尾礦已經(jīng)成為了重大的安全隱患和亟需解決的環(huán)境問(wèn)題,尾礦中含有的化學(xué)成分及微量金屬元素為其綜合利用變成了可能。水泥原料的化學(xué)成分和金屬尾礦的組成非常相近,而且水泥煅燒時(shí)需要不同種類(lèi)的微量金屬元素,對(duì)水泥煅燒時(shí)的節(jié)能降耗非常有利。本文將福建尤溪鉛鋅尾礦添加到水泥生料中進(jìn)行煅燒,利用其本身具有的化學(xué)性質(zhì),通過(guò)Excel法共設(shè)計(jì)了8個(gè)生料配方,在實(shí)驗(yàn)室內(nèi)通過(guò)高溫爐分別在1300℃、1350℃和1400℃進(jìn)行煅燒,研究每個(gè)生料配方的易燒性。對(duì)生料和熟料中的Pb、Zn、Cu和Cd 4種重金屬進(jìn)行固化率的測(cè)定研究,最后對(duì)尾礦作為水泥混合材料進(jìn)行了性能測(cè)試。研究結(jié)果表明,鉛鋅尾礦摻加到水泥中作為原材料之一或者替代粘土等原材料是一種可行的利用方式,實(shí)驗(yàn)檢測(cè)結(jié)果的數(shù)據(jù)表明,添加鉛鋅尾礦制得的水泥力學(xué)性能參數(shù)是符合水泥的相關(guān)檢驗(yàn)標(biāo)準(zhǔn)的,對(duì)水泥行業(yè)的可持續(xù)發(fā)展具有重要意義。
[Abstract]:With the increasing demand for mineral resources, a large number of metal tailings discharged after mining has become a major safety risk and environmental problems that need to be solved.The chemical composition and trace metal elements in the tailings make its comprehensive utilization possible.The chemical composition of cement raw material and the composition of metal tailings are very similar, and different kinds of trace metal elements are required for cement calcination, which is very beneficial to the energy saving and consumption reduction of cement calcination.In this paper, the lead and zinc tailings in Youxi, Fujian Province, were calcined in cement raw materials. By using the chemical properties of the tailings, eight raw meal formulations were designed by Excel method, and calcined at 1300 鈩，

本文編號(hào)：1762400