垂直平行束状孔爆破模型试验与分析

垂直平行密集束状孔落矿有底柱崩落法是一种新的采矿方法。通过爆破模型试验，测试爆破应力，观察分析爆破效果，探求最佳布孔形式，选择最优爆破孔网参数。试验结果表明：用平行束状孔取代扇形落矿，改善了爆破效果，简化了采场结构，减少了采切工程量。     

Modified oil agglomeration process for coal beneficiation. III. Grinding and agglomeration using different szego mill designs

The simultaneous grinding/agglormeration process has been used to beneficiate Minto coal. Experiments with the Szego Mill, a planetary ring-roller mill with grooved rollers, have given good results. Different roller ridge/groove sizes have been tested and favourable oil-coal-water ratios established. Ash removal is closely related to grinding performance. Very short mill residence times, of the order of 10 seconds, are sufficient for microagglomerate formation. Considerable equipment and operating cost savings are possible with the modified process.     

高压注水在综放工作面的应用

介绍了综采煤层注水软化工艺的原理 ,钻孔布置方法以及生产实际中的应用情况     

调整煤源结构优化炼焦煤质量管理

介绍了湘钢在调整煤源结构、优化炼焦煤质量管理方面所做的一些工作。近年来 ,湘钢依靠科技进步 ,坚持精料方针 ,不断强化企业管理 ,使焦炭质量有了较大的提高 ,为降低高炉焦比 ,提高高炉的利用系数做出了应有的贡献     

保安矿柱回采地压监测数据分析

通过现场在马头门附近设立监测站进行长期监测井筒地压，分析了井筒附近地压活动规律，并与数值模拟分析值进行对比验证，从而为安全、高效地提前回收保安矿柱提供有力的保障。     

济钢350m^3高炉高富氧生产技术

分析了济钢350m^3高炉高富氧对产量,理论燃烧温度,炉况顺行状况,焦比和生产效益的影响,高富氧可提高产量,但升高焦比和高炉理论燃烧温度,一定程度上影响高炉顺行,存在富氧效益最大化的适宜富氧率.高炉生产应低富氧高喷煤,根据钢目前的情况,富氧率经2%-3%为宜.     

New chemical structural features of coal. The structure of coal products

The object of this paper is to demonstrate the usefulness of the transalkylation reaction for determining chemical structural features of products derived from coal. For example, the method is applied to derivatized coals, coals modified by thermolysis, and materials physically or chemically separated from coals. Data are presented for the pyridine soluble and insoluble parts of two coals, an O-methylated coal, a Birch reduced coal, a solvent refined coal, and a coke. Similarities and differences in chemical make-up of these materials are discussed.     

超高分子量聚乙烯衬板在煤仓中的应用

介绍了井底煤仓溜煤斜面采用超高分子量聚乙烯衬板安装及应用情况 ,对井底煤仓棚煤原因及解决办法进行了探讨     

库车坳陷煤生物标志物组成随成熟度的变化特征

对塔里木盆地库车坳陷三叠系和侏罗系的11个岩心与露头煤样的地球化学分析表明，煤的生物标志物组成随演化程度的增加而有规律的变化：成熟早期（镜质组反射率Ro／1．0％）煤的生物标志物组成反映了沉积环境和生源的特征；成熟晚期（1．10％＜Ro＜1．30％）煤的生物标志物特征受成熟度的控制作用十分明显，生物标志物参数随Ro的增大而增加或减小；高－过成熟阶段（Ro＞1．30％)所有煤样的生物标志物组成已基本趋于一致，而且和湖相泥岩的生物标志物特征相似，该阶段的生物标志物参数不能用来进行油源对比。     

Large-scale cooling towers as part of an efficient and cleaner energy generating technology

The present paper will outline the main aspects of the design and construction of cooling towers in Germany in the last decade. As part of electricity generating power plants, cooling towers play a significant role for the availability of reliable energy supplies, in a manner compatible with environmental requirements. They definitely belong to the largest and thinnest concrete structures at present. Because of the combined action of wind, thermal and moisture effects, special care has to be taken with regard to fatigue, cracking and corrosion to ensure an adequate level of safety and durability. Such a design strategy has been employed for the world’s tallest cooling tower at the Niederaussem power plant in Germany, with an overall height of 200 m and thickness values of 22–24 cm. Special considerations included the realistic non-axisymmetric distribution of soil characteristics, wind action due to interference effects (as determined by wind-tunnel tests), optimisation of the shell shape to improve structural and dynamic behaviour, injection of the cleaned flue-gas into the cooling tower, and the use of high-performance concrete (85 MPa) to improve shell resistance against acid attack by the cleaned flue-gas. The paper will present some results of an actual research project on this problem, which was conducted at the University of Wuppertal, to explore the use of high-performance concrete on design, stability and durability of cooling tower shells.