尾矿

Article 36 A mining enterprise shall adopt scientific mining methods and techniques for mineral separation so as to reduce the production and storage of gangues, waste rocks, mullocks and other mining solid wastes.

第三十六条矿山企业应当采取科学的开采方法和选矿工艺，减少尾矿、矸石、废石等矿业固体废物的产生量和贮存量。

On base of analyzing and comparing the merits and defaults of the utility ways of kinds iron tailing,it discusses the purpose,meaning,principles,method and ways of using iron tailing sand makes the magnetic screening function material,and prospects its application area and foreground.

在分析比较各种铁尾矿利用途径优缺点的基础上，探讨了利用铁尾矿砂制作磁屏蔽功能材料的目的、意义、原理、方法和途径，并展望了它的应用领域和前景。

This new approach is that high purity concentrate of sulphide iron ore is produced by the reasonable process flow and the new reagent, and the c...

本论文在查阅了大量相关文献的基础上，在该新方法的指导下，开展生产高质量硫铁矿精矿的一系列选矿试验研究，并进行硫铁矿精矿氧化焙烧的探索试验，同时对选矿尾矿煅烧耐火材料等方面的二次资源综合利用进行初步研究。

According to the daily observation of saturation line, the water level of observation well and reservoir water level curves are attained by polynomial regression analysis.

运用多项式回归分析浸润线观测数据，拟合得出浸润线观测孔水位与库水位的函数曲线，求得尾矿坝浸润线矩阵。

Mill grade of ore,recoveries and tailing grade are very correlative during dressing processes.

在选矿过程中，矿石的原矿品位、回收率、尾矿品位三者是密切相关的。

Furthermore, transfer coefficient between total content and variable speciation including acid-soluble/exchangeable, reducible, oxidisable fraction of heavy metals are different. Transfer coefficient of total Cr is 0.65 in tailings area, but that of variable speciation is 0.26. In contrast with Cr,transfer coefficient of total Ni is 0.26, but that of variable speciation is 0.67. The similar characteristics on Pb and Zn in cultivated soil, namely, transfer coefficient of total Zn is high, but low for variable speciation, which is reversed for Pb. Transfer coefficient of total content and variable speciation in abandoned soil are low compared with above two fields soil, especially, variable speciation of Cu and Ni are not transported almost down soil profile.

重金属总量和活性态（包括弱酸提取态、可还原态、可氧化态）迁移率也表现出很大差异，尾矿区土壤Cr总量迁移率较高为0.65，而其活性态迁移率较低为0.26，Ni与Cr迁移特征完全相反，总量迁移率为0.26，而活性态迁移率为0.67；农田土壤中Pb总量迁移率低而活性态迁移率高，Ni与Zn特征相似，总量迁移率高而活性态迁移率相对较低；大棚地土壤中重金属迁移率均较低，Cu和Ni活性态几乎未发生向下迁移。

In the experiment, It was discoved that many kinds of mineral tailings contain the sulfides of iron, lead and zinc, which can be oxidated and exothermic in the process of the calcining, and have obvious effect on economizing energy.

试验中发现很多金属尾矿含有铁、锌、铅的硫化物，它们在水泥熟料煅烧过程中能氧化放热，可起到明显的节能效果。

By analyzing and studying Yujiaquan tail dam of Luzhong Mining Group example,the failure,groundwater seepage and dust nuisance of tail dam are studied.

通过分析研究鲁中冶金矿业集团的御驾泉尾矿库实例，对尾矿坝的破坏，尾矿库地下水渗漏和细粒尾矿库扬尘三个方面进行了研究。

Figure 2 shows the jigging concentrate relations between content and ore feeding volume, when the diaphragm jig and the sawtooth pulsation jig are provided with different ore volume. Figure 3 shows the jigging concentrate relations between the sulphur recovery rate and ore feeding volume. As the test result shows, when the tailing content reaches approximately 7%, the diaphragm jig has 1.00 t / h · m2 feeding volume, which is also the maximum sorting efficiency in the test. As such, the sawtooth pulsation jig could choose 1.2 t / h · m2 feeding volume. As the test contrast of two groups shows, the sawtooth pulsation jigging concentrate contains higher-grade sulphur than the diaphragm jigging concentrate does.

图2为隔膜跳汰机及锯齿波跳汰机在不同给矿量的情况下，跳汰精矿品位与给矿量的关系，图3为跳汰机精矿硫回收率与给矿量的关系，试验结果表明，在尾矿品位接近7%，隔膜跳汰机给矿量为1.00 t/h·m2指标是隔膜跳汰机给矿量试验中选别效率最高的点，同理选择锯齿波给矿量为1.2 t/h·m2，将两组试验数据比较可以看出，锯齿波跳汰精矿含硫品位高于隔膜跳汰精矿含硫品位。

Luoyang Yu-fat dressing Equipment Co., Ltd. is organized around a variety of industrial slag, coal gangue, sand, rock powder, cinder, slag, coarse, fly ash, tailings and other raw materials the production of a variety of new building materials series of professional equipment manufacturers, the series of products include: multi-function block making machine,×úmachine.

洛阳昱发选矿设备有限公司是围绕各种工矿废渣、煤矸石、河沙、岩粉、煤渣、炉渣、粗沙、粉煤灰、各种尾矿等原材料生产新型建材系列设备的专业厂家，该系列产品有：多功能砌块成型机、免烧砖机机等。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。