神华煤工业锅炉应用的环保性能优势

介绍了国内工业锅炉的使用现状及对工业锅炉的相关要求，阐述了神华煤的资源、生产、运输、销售和性能优势，以及神华煤在工业锅炉应用中所体现的良好性能和不足。     

煤泥水在线药剂添加——优化控制平台的设计

介绍了煤泥水在线药剂添加平台和工业现场分流实验系统的设计与构建。通过絮凝剂、凝聚剂添加平台实验,得出絮凝剂添加的控制模型为线性模型,凝聚剂的添加与煤泥水体系的电导率有直接关系,并存在一个最佳控制点,确定了药剂添加优化控制策略模型,为工业现场煤泥水药剂优化控制提供理论依据。     

基于Web技术的选煤生产过程信息实时查询系统的开发

根据选煤生产过程的实际需要,在分析远程监控系统和实时数据传递功能的基础上,提出了基于Web技术的矿区选煤生产过程信息实时查询系统的体系结构。从系统开发角度出发,研究了煤炭企业内部Intranet网络上实时数据采集、传输及发布的全过程信息流,设计了Web实时查询系统的工作构架,研制了安全隔离式生产控制网向管理网单向数据传递接口,由此实现了集团公司多家选煤厂生产过程的在线检测与控制信息的Web实时查询。通过实际应用和长时间的运行表明,本系统具有系统安全可靠、数据传送实时性好等优点。     

石棉废物环境无害化管理对策研讨

石棉尾矿和石棉废弃制品的数量多、种类复杂、潜在健康环境风险高,在很多国家及地区均将其纳入危险废物管理范畴,并进行单独管理。综述了我国石棉废物产生情况、环境管理存在的问题,介绍了日本、欧盟等部分发达国家和地区在石棉废物环境管理方面的经验,并提出推动我国石棉废物环境无害化管理的建议。     

Study on Metals Recovery from –0.074 mm Printed Circuit Boards by Enhanced Gravity Separation

Nowadays study on discarded printed circuit boards (PCBs) reutilization has great significance for achieving secondary resources recycling and preventing environmental pollution. Physical methods show great potential and advantages on discarded PCBs reutilization, comparing with chemical and biological methods. However for the particles of -0.074 mm PCBs, little work has been done in the past because of lower separation efficiency and recovery. In this paper, the conundrum of -0.074 mm PCBs reutilization was resolved successfully with the help of Falcon concentrator. Separation mechanism for fine particles with different mass densities in a Falcon centrifugal concentrator was analyzed. The main factors such as magnitude of rotation frequency (centrifugal acceleration), anti-charge water pressure and feeding concentration were studied, and interaction of different factors was analyzed using Design-Expert software. The experimental results show that metals grade of -0.074 mm PCBs and integration efficiency were obtained as 76.89% and 80.77% respectively when feeding concentration was 40 g/L with water pressure of 0.01 MPa and rotation frequency of 50 Hz.