尾矿

In 1933 a wet grinding and wet grinding slag slag concrete technology, the 20th century, the 50's this technology in large-scale concrete and precast concrete applications, due to the wet pulp mill tailings storage and transportation difficulties in the shortcomings of the technology has not been widely .

在1933年1湿磨和湿磨渣渣混凝土技术， 20世纪50年代该技术在大型混凝土和预制混凝土的应用，由于湿纸浆厂尾矿储存和运输困难的缺点，该技术还没有被广泛。

The full tail sand grouting filling system at zhangmatun iron mine is to adopt tailings after two stage dewatering from washing plant,make homogeneous grouting filling material with high density from mixing full tail sand,cement and water through stirring and form bulk and low grade grouting body with strong solidity,filling in gob taking pipe full self-flowing transport way.

马屯铁矿全尾砂胶结充填系统采用选矿厂两段脱水后的尾矿，通过搅拌将全尾砂与水泥、水混合制成高浓度均质胶结充填料，以管道全自流输送方式充入采空区，形成整体性强的大体积低标号胶结体。

At present, the researches at home and abroad concentrate on aquatic environmental influence of mine tailing and coal-gangue, but seldom focus on waste rock , which contrasts sharply with the present status of a large amount of waste rock pile in my country.

目前，国内外研究多集中于尾矿和煤矸石的水环境影响，对废石衍生水环境效应的过程、机制、影响因素研究甚少，这与我国大量废石的堆放现状形成了鲜明的对比，所以本文研究金属硫化矿业废石对水环境的影响有一定的实际意义。

The effects of glass composition and crystallization technology on crystallization properties of MgO-Al2O3-SiO2 system glass-ceramics were studied by means of DTA,XRD,polarizing microscope and SEM.

结果表明：在金矿尾矿中添加适量的镁、铝质材料和网络结构调整氧化物，可获得主晶相为堇青石和尖晶石及顽火辉石固溶体的性能良好的微晶玻璃。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。