共搜索到11091条信息,每页显示10条信息,共1110页。用时:0小时0分0秒562毫秒
unit bed height (△P/L) and superficial gas velocity (ug) under sinter packed bed with different particle sizes 图7 不同表观气体速度下单位料层高度阻力与颗粒特性参数的关系 Fig. 7 Relationship between resistance per unit bed height..., 2008, 19(4): 369-381. [13] ALLEN K G, VON BACKSTROM T W, KROGER D G. Packed bed pressure drop dependence on particle shape, size distribution, packing arrangement and roughness[J]. Powder Technology......
: Methods and procedures of three-dimensional (3D) characterization of the pore structure features in the packed ore particle bed are focused. X-ray computed tomography was applied to deriving the cross... of cluster-labeling algorithm also increases with increasing the particle size approximately. Key words: packed ore particle bed; 3D pore structure; X-ray computed tomography; image analysis 1......
the effects of particle size amongst other parameters on ferrous iron biooxidation process in a packed bed bioreactor, and reported that ferric iron productivity increased with an increase..., CARRANZA F. Ferric iron production in packed bed bioreactors: Influence of pH, temperature, particle size, bacterial support material and type of air distributor [J]. Minerals Engineering, 2001, 14......
="ChDivSummary"><正> The effects of various combustion conditions (i. e. particle size of coals, oxygen concentration in combustion gas and coal content in the fuel bed, etc.), on reducing... conducted in a packed bed combustor. The combustion experiments have shown that most of adhering materials gave considerable effect on reduction of NOx emission during coal combustion.关键词:......
F M, Bleek C M, et al. CFD modeling and experimental validation of particle-to-fluid mass and heat transfer in a packed bed at very low channel to particle diameter ratio[J]. Chemical Engineering... of packed bed reactor with ordered stack DU Juan1, WEI Xiaolan1, DING Jing2, LU Jianfeng2, QIN Guanfeng3, YANG Minlin3, YANG Xiaoxi1, 3 (1. Key Laboratory of Enhanced Heat Transfer and Energy......
concentration, and a pH of 1.6. Variations in elemental composition within different particle sizes resulting from the mineralogy of the ore account for the bioleaching behaviour at varying particle sizes. The dissolution at varying pulp density, volume of inoculum, solution pH and the low solution potential observed are also influenced by ore mineralogy. Key words: sulphide......
that the main factors that influence the bed layer voidage distribution are the sinter particle diameter and bed layer diameter of vertical tank. Among them, the bed layer average voidage decreases with the increase of bed layer geometric factor for a given sinter particle diameter under the condition of smaller bed geometrical factor (D/dp<120). On the contrary, the bed layer average voidage does not vary......
ore, tailings and waste ore for metals, such as uranium, copper, gold and silver. The ore granular media used for heap leaching are the porous media packed by ore particles with different sizes... 2.4 Experimental procedure The mixed ores with various sizes were packed in the leaching column firstly. Fig.3 shows the size distribution of the ore particles. In order to avoid wall effect......
, Northeastern University, Shenyang 110819, China) Abstract: Based on dimensional analysis method, the flow resistance characteristics in sinter packed bed of different particle diameters were...; packed bed; pressure drop; particle Reynolds number; particle friction factor 烧结过程余热资源的高效回收利用是目前降低烧结工序能耗乃至炼铁工序能耗的主要途径之一[1].烧结矿余热罐式回收是针对现有烧结矿余热回收方式存在的系统漏风率高,余热资源回收率低和热载体出口品位低等不足[2],提出的一种烧结余热高效回收方式[3-4......
structure, the mesoscopic solution seepage experiment of ore heap under the various spray intensity was carried out, and particle image velocimetry (PIV) was used to test the inter particle solution... structure of ore heap and characteristics of ore particle are the key factors that influence the velocity distribution of seepage field. Key words: particle image velocimetry; ore heap; seepage field......