查询词典 iron ore

Based on a systematic study of a considerable number of polished ore sections as well as ICP-MS and electron microprobe analyses, the authors have found that the main sulfide minerals include galena, iron-poor sphalerite and chalcopyrite, whereas silver minerals are composed chiefly of native silver, pyrargyrite, argentite, polybasite, and argentiferous freibergite.

文章首次对其矿石矿物进行了系统的研究，通过对大量矿石光薄片观察、等离子质谱和电子探针分析，表明具有工业意义的硫化物主要有方铅矿、贫铁闪锌矿、黄铜矿，银矿物主要有自然银、深红银矿、辉银矿、硫锑铜银矿、含银黝铜矿，它们与硫化物共生，多沿方铅矿、贫铁闪锌矿等颗粒间或者裂隙产出。

With the improvement in refining ore, it was now possible to make cast-iron beams and columns.

随着精练的进步，现在可以铸造铁梁及铁柱。

Pretoria for the mining city for the suburbs of diamond, platinum, gold, tin, iron, chrome, coal, ore mining center.

比勒陀利亚为矿业城市，近郊为金刚石、白金、黄金、锡、铁、铬、煤等矿的开采中心。

A pilot study on the industrialized production of chrome pig iron was carried out in a small- sized blast furnace of 30m￣3 by using a sintered ore of chrome slag as flux.

采用铬渣烧结矿作为熔剂，在30m3小高炉上进行了冶炼含铬生铁的工业化生产试验。

The preventive measures for the harmful defects of alkali metals are as follows: 1, reducing the alkali metals content in the raw materials; 2, increasing the MgO content of the sinter , decreasing the basicity of slag , decreasing the Si content of the pig iron, increasing relative slag volume; 3 , introducing prereduced ore pellets or partly reducted sinter; 4increasing the ability of coke resisting alkali metals; 5, using refractories that have the ability of resisting corrasion of alkali metals; 6 , cleaning the blast furnace periodically. The above recommendations are necessary for decreasing the circulation and accumulation of alkali metals effectively in blast furnace, reducing the harmful influence of alkali metals on blast furnace, increasing the smelting intensity, decreasing the coke rate, improving the gas permeability.

基于碱金属对高炉冶炼的上述危害，本文结合湘钢高炉的实际生产情况，通过理论分析、计算以及其他钢厂防治碱害的经验，提出防治高炉碱害的措施：1、减少入炉原、燃料的碱金属含量；2、提高烧结矿中的MgO含量、降低炉渣碱度、降低生铁含硅量、适当增加渣量；3、采用预还原的金属化球团或部分还原的烧结矿；4、提高焦炭的抗碱能力；5采用抗碱侵蚀的耐火材料；6、周期性性洗炉，以有效地减少碱金属在高炉内的循环富集，降低碱金属对高炉的危害，提高高炉的冶炼强度，降低焦比，改善高炉透气性。

The high iron and low silica sintering of titaniferous iron concentrate was realized with optimal proportioning ore under the present condition in Panzhihua New Steel and Vanadium Limited Company.

在攀枝花新钢钒股份有限公司炼铁厂现有的资源条件下，通过优化配矿实现含钛铁精矿高铁低硅烧结，烧结矿全铁的质量分数从49.20%提高到51.46%，SiO2的质量分数从5.30%降低到4.05%。

Cr15Mo3 is chromium wear-resistant white cast iron, heat treatment of the microstructure of martensite matrix of chromium carbide + Paralympic +, macro-hardness of HRC 60 or more wear resistance than Ni-Hard Cast Iron It is a very good wear-resistant material that can be produced coal mill, ore crusher, cement mill, shot blasting machines, mud pump, slurry pumps and other wear and tear serious casting.

Cr15Mo3 是铬系耐磨白口铸铁，热处理后的金相组织为马氏体基体+铬的碳化物+残奥，宏观硬度HRC在60以上，耐磨性能优于镍硬铸铁，是非常好的耐磨材料，可制作磨煤机、矿石破碎机、水泥磨机、抛丸机、泥浆泵、渣浆泵等磨损严重的铸件。

The traditional technology of iron carbide production exists the problem that the reaction time is too long. The research of adding the additive into the ore of the fluid-bed was carried out in order to find the catalyst of this reaction. It was found out that K2CO3 and CaCl2 can be the catalysts of this reaction. The reacting time and equilibrium data in addition of K2CO3 and CaCl2 were examined and were campared with the contrastive experimental results respectively. The theoretical dynamics analysis also reveals that both K2CO3 and CaCl2 can accelerate the iron carbide forming reaction.

摘 要：传统的碳化铁生产工艺存在反应时间较长的难题，为此通过在流化床入炉矿石中配加部分添加剂的还原实验研究，以寻求该反应可能的催化剂，缩短反应时间，提高碳化铁生产效率和经济效益采用CaCl2和K2CO3作为反应的催化剂，利用反应所测数据，与对比实验相比较，并结合动力学分析，得出CaCl2和K2CO3可以加速碳化铁还原反应进行的结论。

The mineral form of black iron oxide, Fe3O4, that often occurs with magnesium, zinc, and manganese and is an important ore of iron.

磁铁矿黑色氧化铁矿，Fe3O4，经常和镁、锌以及锰共生，是一种重要的铁矿石

The ore sample analysis of a Yunnan iron concentrator shows that the sample mainly contains hematite and specularite and its iron minerals are fine disseminated.

针对这种情况，更好利用国内的现有资源，对有效抑制铁矿石价格的上涨，推进我国国民经济持续、健康、协调发展，显得十分重要。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了