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It's the biggest coalmine in east, central and south China with the title of" Coal bunker of central China" since long before.

已探明各类矿藏57种,其中原煤储量103亿吨,是华东和中南地区最大的煤田,素有&中原煤仓&之称;盐储量2300亿吨,居河南省第一位,是我国第二大井盐产地;铁矿石储量6.6亿吨,占河南省储量的76.3%是全国十大铁矿之一。

Experts estimate that this year because of iron ore and coke prices caused by factors such as the total cost of the entire industry will be an increase of 150%.

据专家估计,这是因为今年铁矿石铁和焦炭价格造成的因素,如整个行业的总费用将是150%的增长。

During the 1:250000 regional geological survey, four iron copper-bearing iron occurrences and two silver-copper polymetallic occurrences which merit further work were found in southern Gê′gyai County, in the western segment of the Gangdise belt, Tibet.

通过1:25万区域地质调查,在冈底斯带西段革吉县南部地区新发现了具有进一步工作价值的铁矿及含铜铁矿点4处,银铜多金属矿点2处。

The experiment result shows that if Iron in the pickle of copper-smelting smoke ash is removed by Oxygen or oxidation combined with Hydrogen peroxide, Iron removing rate is 90%.

常用除铁方法主要有 [1 ,2 ] :(1 )直接鼓风氧化生成针铁矿的形式除铁;(2 )用生成磷酸盐沉淀的方法除铁;(3 )用黄钾铁矾法除铁;(4)用过氧化氢氧化除铁;(5 )采用溶剂萃取法分离铁。

The results showed that a remarkable improvement of the efficiency of grinding and a good effect of energy saving and consumption reduction could be reached under the condition of electric current of running mill and the fineness of the grinding classification product remainin.

提出了磨矿领域一个新的研究方向—&微阶段化磨矿&,该项研究某大型有色金属集团公司的转炉渣磨矿系统和某大型铁矿选厂的应用结果说明:在磨机运转电流和磨矿产品细度保持不变的情况下,磨矿效率得到显著提高,具有明显的节能降耗效果。

It is understood that the current mill is no longer the Association in accordance with the procurement prices of the three major iron ore mines, and in time pending the outcome of the negotiations, procurement and settlement systems, very confused, almost a price of a factory, a steel prices in accordance with the long-HS 60%-80% open letters of credit to the supplier.

据了解,由于目前钢厂已经不按长协价格采购三大矿山的铁矿,而在谈判未有结果的时候,采购结算体系极为混乱,几乎是一厂一价,有钢厂按照长协价格的60%-80%给供应商开信用证。

Through the research,the dephosphorizing process of low intensity magnetic -high intensity magnetic-shacking table separation was selected.

通过工艺研究,最后选择弱磁—强磁—摇床精选的工艺流程,加强矿物的细磨,是铁矿降磷和提高精矿指标的重要措施。

The second phase eng in eer in g of crusher room in Meishan Iron M in e is situated in serious alteration diorite-porphyrite with larger expansive feature.

梅山铁矿二期破碎硐室处在蚀变严重的闪长玢岩中,岩体有较大的膨胀性。

The water interception and drainage system of east open pit of Daye iron mine and its many years of experience were introduced in detail. Some problems worthy of notice in water interception and drainage system of deep open pit were proposed.

详细介绍了大冶铁矿东露天所采用的截水排水系统和该矿多年截排水方面的经验,对深凹露天矿的截排水提出了一些值得注意的问题。

In order to study drift deformation of Daye Iron Mine, 4 convergence monitoring sections and 3 multi-point displacement monitoring sections are arranged.

为了解大冶铁矿尖林山巷道变形规律,在-40m水平布置了4个收敛计和3个多点位移计测试断面,经过一年多的观测,获得了满意的观测数据。

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