某铜矿石优化配矿研究与生产实践

针对大宝山铜矿石生产配矿现状及存在的问题,提出了通过利用回收的残矿、难选矿及低品位铜矿石的优化配矿方案,使之应用于生产实践,提高了铜矿石资源的综合利用率,产生了良好的经济效益,有利于矿山的可持续生产和发展。     

煤金团聚法回收金机理初探

介绍了煤金团聚法(Coal Gold Agglomeration, CGA)的研究现状,讨论了影响煤金油团聚的几个主要因素,如煤化学、中性油的特性、疏水颗粒间的相互作用等。在此基础上,研究搅拌强度和接触时间对CGA金回收动力学的影响,发现在其他条件不变的情况下,同一矿种在不同的搅拌速度下,金回收动力学速率常数是一定的。筛选出的煤、油混合的聚团很好的无捕收剂捕金能力,金回收率可达77%～86%。进一步实验研究发现添加适量的硫化钠调整剂对含硫化物原生金矿中金有较好的活化作用,金回收率有显著提高,而硫化物的上浮却有所降低。     

新型氧化铜矿捕收剂OK2033的选矿应用试验研究

OK2033是为赞比亚谦比希西矿体氧化铜矿开发的新型氧化铜矿捕收剂,本文主要研究了OK2033对国内氧化铜矿的捕收效果和对矿石的适应性。OK2033用于吉林某地氧化铜矿浮选,效果好于羟肟酸,粗选回收率比羟肟酸高出1.5%以上,铜粗精矿品位高出近1%。     

提高湿式红土镍矿洗矿试验设备圆筒洗矿机的洗矿效果研究

本文叙述了在湿式红土镍矿洗矿试验中,影响圆筒洗矿机洗矿效果的相关因素,提出了调整圆筒洗矿机尾部筛网尺寸、增加冲洗水压力及水量、调整筒体提升板高度、调整设备尾部挡板高度及挡板安装方向、改变洗矿机转速等改进措施,成功的解决了洗矿砾石含泥矿较多的问题,提高了洗矿效果,为项目圆筒洗矿机的设备设计提供了坚实的数据支撑。     

氧化铜矿中酸溶铜的分析方法探讨

试样用含亚硫酸钠的10％硫酸溶液浸取,使铜的氧化物矿物选择溶解,过滤后加入溴素掩蔽砷和锑等金属,~t,／Jtl少量硫酸,蒸干后用硫酸溶解,采用碘量法和电重法对比分析。本文采用十四个生产试样,两种方法对比,结果稳定,可靠。     

中小型粗铜冶炼厂优化设计

本文结合康西铜冶炼厂的设计，阐述了经过优化设计后的富氧密闭鼓风炉炼铜又有了新的活力。     

可控源音频大地电磁法在黑龙江某铜钼矿床深部找矿中的应用

以铜钼矿体与磁铁矿的伴生关系为基础,选择可控源音频大地电磁法对黑龙江某铜矿深部找矿进行了分析,结果表明:矿床在平面上具有明显的分带性,具有自岩体中心至片岩地层中“钼(铜)矿体→铜矿体→铜金矿体→金矿体”的变化规律;铜钼矿体中伴生有少量的磁铁矿,使得含矿地质体的磁性略微增加,矿体受断裂控制明显,因此高磁低阻区域是良好的找矿部位;钻探验证效果良好,本文采用的方法在该区域应用效果明显。     

Simulating the Thermal Behavior of Buildings Using Artificial Neural Networks-Based Coarse-Grain Modeling

This paper reports on the development of a new approach for simulating the thermal behavior of buildings that overcome the limitations of conventional heat-transfer simulation methods such as the finite difference method and the finite element method. The proposed technique uses a coarse-grain approach to model development whereby each element represents a complete building component such as a wall, internal space, or floor. The thermal behavior of each coarse-grain element is captured using empirical modeling techniques such as artificial neural networks (ANNs). The main advantages of the approach compared to conventional simulation methods are (1) simplified model construction for the end-user; (2) simplified model reconfiguration; (3) significantly faster simulation runs (orders of magnitude faster for two- and three-dimensional models); and (4) potentially more accurate results. The paper demonstrates the viability of the approach through a number of experiments with a model of a composite wall. The approach is shown to be able to sustain highly accurate long-term simulation runs, if the coarse-grain modeling elements are implemented as ANNs. In contrast, an implementation of the coarse-grain elements using a linear model is shown to function inaccurately and erratically. The paper concludes with an identification of on-going work and future areas for development of the technique.     

“湿型”红土镍矿选矿设计探讨

针对湿型红土镍矿的矿床特征,从选矿角度提出了需要回收这部分有用矿物时必须采用破碎设备才能实现的观点。阐述了红土矿选矿的一般工艺流程及特点,重点提出了红土镍矿在选矿设计流程中破碎、洗矿方面需要特别注意的问题。从设计角度出发论述了破碎设备、破碎系统配置优化、洗矿设备选择及其改进措施等内容。     

应用正交法优化煤气脱硫剂配制

叙述了应用正交优化法获取脱硫剂的最佳配比，从而使焦炉煤气中的Ｈ２Ｓ含量降低到≤２５ｍｇ／ｍ３，为企业创造了经济效益。     

Breakage Prediction of Laminated Glass Using the “Sacrificial Ply” Design Concept

Laminated architectural glass has proven to be well suited for use in glazing systems that must resist wind-borne debris impacts. When the inner glass ply in a laminated window unit remains unbroken after wind-borne debris impacts on the outer glass ply, the integrity of the building envelope is preserved. A mechanics-based analytical model is developed to predict the cumulative probability of inner glass ply breakage in laminated architectural glass subjected to simulated wind-borne debris impacts on the outer glass ply. A nonlinear dynamic finite-element analysis is employed to compute stresses in each layer of the laminate due to impact. Based on the cumulative damage theory, the two-parameter Weibull distribution is used to characterize the cumulative probability of inner glass ply breakage. The analytical predictive model is calibrated using available experimental data on material parameters. Cumulative probabilities of inner glass ply breakage predicted by the analytical model are in agreement with the corresponding experimental data.     

边角煤高回收率高效开采工艺设计与优化

针对国内边角煤的开采现状,提出了一套高回收率和高效率的开采工艺.用弧三角模型简化边角煤形状,提出了容易实现综合设备配套的\     

浅谈采矿系统软件Minesight在露天境界设计中的应用

介绍了Minesight软件在露天境界优化中的应用，与传统的境界优化法进行比较，总结了软件在露天矿山开采设计应用的一些方法。