岩粉

干孔岩粉采取率达100%，有水孔采取率达50%左右。

The collection percentage of rock powder is 100 % in dry-hole and about 50 % in water-hole .

现场试验表明其携带岩粉能力强，可抑制钻杆内壁结垢。

Field tests shows that its ability of carrying the rock powder and inhibiting the drill pipe wall fouling is great .

捣碎法测定时，应依据岩粉高度l的不同，采用不同的推算f值的经验公式。

Value F of rock can be calculated by applying different empiric formulae according to the height of the rock powder obtained , when the powder-breaking method is applying .

套管被送入软岩粉顶。

The casing was driven into the soft muds in the top .

煤矿防爆检测用岩粉-煤尘比测定仪

Rock / Coal Dust Meter Used to Detect The Possibility Coal Dust Explosion

防潮岩粉棚抑制煤尘爆炸传播关于岩粉隔爆效果的探讨

Study On Effect Of Stone Dust Suppression Of Propagation Of Coal Dust Explosion

厚的绿色套头毛衣.套管被送入软岩粉顶。

A thick green jersey The casing was driven into the soft muds in the top .

钻井岩粉在钻井液中自由沉降的实验研究&岩粉的沉降阻力系数及沉降速度

An Experimental study of Free Settlement of Drilling Cuttings in Drilling Fluid-Drag Coefficient and settling Velocity

国内煤矿现采用六五期间研制的传统阻隔爆设施，如水棚、岩粉棚等在实际使用中，不能达到预期的阻隔爆效果。

The traditional present-used barrier explosion facilities , such as the water tent , the rock powder tent etc , can not get the expected barrier explosion effect .

研究发现：矿井水所含悬浮物主要是粒径较小的煤粉和岩粉，而且表现出不同程度的负电性，自然沉降比较困难。

The results show that the suspended particles in mine drainage mainly consist of coal and rock grains with small size and negative electric charge which make them hard to naturally subside .

这个新的观点涉及到泥浆水力损失计算、流变学和岩粉携带等一系列理论的磋商问题。

From this new point of view , a series of relative theoretical problems must be further considered , such as the design of hydraulic loss of mud , the rheology and carrying cuttings etc.

钼矿选矿过程中使用了较高浓度的水玻璃，使得尾矿液中的细岩粉颗粒保持悬浮不沉，造成排放污染环境和回水浮选降低精矿回收率的问题。

Fine grains in the gangue suspension from a molybdenum ore dressing do not settle down because there is high concentration of sodium silicate ( water glass ) which is used in the beneficiating process .

随着原生资源的日渐枯竭和生态环境保护意识的不断提高，如何进行火山岩粉资源化利用，已成为专家学者研究的新领域。

With the native resources are depleting and the continuous improvement of the ecological awareness of environmental protection , how to utilization of volcanic rock powder , improve the local ecological environment of mining area , has become a new area of research for experts and scholars .

针对局部由于受高速含破碎岩粉颗粒泥浆冲刷作用而容易出现磨损的状况，我们目前采用的方法是直接铜焊硬质合金，主要分布于喷嘴、侧壁和劈尖部分。

As to the situation of which the parts can be easily abrased by the fractured rock powders driven by high-speed mud fluid , we currently adopted the method of copper brazing carbide directly , which are mainly distributed on the nozzle , sidewall and pin point .

矿石的岩石类型有：生物灰岩、粉砂岩、断层角砾岩、泥岩等。

Ore-bearing rocks are mainly biogenic limestone , siltstone , and fault breccia .

淋湘金矿床产于南秦岭古生界泥盆系地层中，容矿围岩主要为碳酸盐岩和粉砂质千枚岩、千枚岩，金矿体主要受近东西向断裂控制。

The Linxiang gold ore deposit is found in the Palaeozoic Devonian strata . The gold orebodys occur in carbonate , fine-sandy phyllite and phyllite , and the major ore bodies are confined to the EW ore-control fault .

煤系高岭岩制洗衣粉助剂4A沸石

4A zeolite for detergent applications made from Kaolinite in coal measures

极软岩巷道水泥粉煤灰浆锚注试验研究

Test and research on bolt and grouting with cement and flying ash grout in mine very soft rock roadway

先将干燥岩矿研磨成粉，并与ε′和tanδ较小且介电性质稳定的聚乙烯粉末以一定体积百分比混合，热压成型制样；

At first , the dry rocks and minerals are ground into powder , and then they are mixed in a given proportion with polythene powder , both with relatively low ε′ and tan δ and with stable dielectric property , and then hot-pressed into fine granular specimens .

煤岩学原理在粉煤成型机理中的应用

The Application of Coal Petrology Principle on the Mechanism of Fine Coal Forming

赋矿地层为上侏罗统雄黄厂段，主要由白云岩、灰岩、泥岩和粉砂岩组成。

The Xionghuangchang section of the Upper Jurassic series is the principal ore-host strata , composed mainly of dolomite , limestone , mudstone , and siltstone .

黑曜岩泡沫玻璃配合料由黑曜岩废料、玻璃粉和发泡剂组成。

The batch of obsidian foam glass consists of obsidian tailing , cullent power and foaming agent .

新疆库地蛇绿岩堆积厚度达1500m以上，主要岩石由纯橄岩、斜辉橄榄岩、辉长岩、块状玄武岩、枕状玄武岩、玄武安山岩、硅质岩、粉砂岩等组成。

The ophiolite is composed of dunite , peridotite , gabbro , massive basalt , pillow basalt , basaltic andesite , silicalite and siltstone with thickness of over 1500 m.