查询词典 ore bed

These in a ploughshare mixer generated mechanical fluid bed enlarge the surface of the ore concentrate this promotes uniform mixing of all the individual particles with Betontit and other dry or if required with wet additives.

犁铧式混合机产生的机械流化床原理将增大提高铁精矿表面积，这将提高每种材料颗粒混合均匀度，像膨润土，和其他干的或者要求所需的湿的添加剂

From the fields of regional crust-mantle structure, metallogentic settings, history of tectonic-magmatic activity, distribution of high antimony anomaly, characteristics of deposit, origin of ore-forming materials (including Sb, C, Si, S, solution and associated elements), black dikes, the relation of deposit and mantle metasomatism fluid is expounded by means of geology and geophysics. Xikuangshan antimony deposit is proved to be a typical vein deposit formed by mantle metasomatism fluid. On the basis of this knowledge, the prospecting criteria of blind orebody of the deposit are given as follows: extensive structuer which indicating the activities of mantle metasomatism fluid, change of host rocks (especially exsisting shale barrier bed), silication and carbonization alteration.

文中对地幔交代流体组成、性质、活动特点及其成岩、成矿作用作了综述与探讨；从锡矿山区域壳幔结构和成矿背景、地质构造-岩浆活动史、高锑地球化学场结构分析、矿床特征、成矿物质(包括Sb、C、Si、S、流体及伴生元素)、与成矿有时空联系的暗色脉岩等方面入手，利用地质、地球物理、地球化学手段多方面论述了矿床与地幔交代流体活动的关系，论证了锡矿山超大型锑矿的地幔交代流体成因，并以此为基础提出盲矿体地质找矿标志：即指示地幔交代流体活动的构造，尤其是具有成矿元素和碱质异常、热液蚀变的断裂构造；有利的岩石物理化学性质；硅化、碳酸盐化围岩蚀变等。

Iron ore-body,shaping as similar bed,vein,lens shaped and so on,extends NWW-trending with dips mainly to northern at angle 80°～86° and partly to southern at high a...

矿体形态为似层状、脉状、复杂透镜状等，走向NWW，倾向北为主，倾角80°～86°，部分近直立或高角度倾向南。

When change cross fall and stroke still might maintain the surface of bed movement balance,the spring laid aside in box in vivo,the knot constructs compact,also can time obtain the final ore concentrate and the final debris

在改变横向情侣装厂家直销和冲程时仍可保持床面运行平衡，弹簧重庆玻纤厂在箱体内，结构紧凑，且能有关新型玻璃的作文得出最终精矿和最终尾矿。

Effect of coal as additive reducing agent on pr eventing sticking in a fluidized bed for iron ore reduction was investigated.

介绍了铁矿石还原流化床中混入煤粉对粘结失流现象的抑制作用。

Effect of coal as additive reducing agent on pr eventing sticking in a fluidized bed for iron ore reduction was investigated.

摘 要：介绍了铁矿石还原流化床中混入煤粉对粘结失流现象的抑制作用。

Synthesized all above, the heat and mass transfer of charge bed is discussed in detail. After choosing seriously the former study results in this field, a whole temperature range process model for firing iron ore pellets containing solid fuel is established as well as its software is edited. The main physical chemistry reaction process within pellets and the heat statement can be calculated exactly with the process as long as the physical and chemical parameters of raw material are obtained through basic experiments. After finding out the reason of"temperature hysteresis"and"heat inertia"of the experimental induration device, a new kind of experimental induration device is designed. The"temperature hysteresis"of hot gas flow in the new device is avoided.

综合以上对焙烧球团矿时球团矿内各种物理化学反应过程的分析与研究的结果，仔细地分析研究了球团矿料层中的传热质现象，认真筛选了前人对填充床的传热传质的研究结果，提出了全温度范围球团矿焙烧过程模型，并编制了相应的计算机软件，只要通过基础实验，获得原燃料的基本物性参数（如化学反应速度常数，矿粉、煤粉的粒度及此表面积以及球团矿的导热性等），利用这一软件就能准确地计算出焙烧球团矿时球团矿内各种物理化学反应过程和料层内的热工状态。

In the experiment of fluid bed, when the iron ore has been reduced for 120 minutes with the use of CO·CO〓·H〓 mixture containing 20%CO〓 at the temperature of 700℃, the reductivity and metallization can both exceed 90%, and the rate of iron carbide exceeds 73%.

流化床实验中，在温度700℃用含CO〓为20％的CO·CO〓·H〓混合气体还原铁矿石120分钟可获得还原度和金属化率大于90％的还原产品，碳化铁率超过73％。

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 experimentally identified math-model of iron ore reduction in moving bed is developed to describe the practical process in industrial reactor.

提出了一个移动床还原过程的数学模型，并由实验证实，这一模型也能描述实际工业规模的铁矿石移动床还原反应器。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失